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1.  Prevalence, Characteristics, and In-Hospital Outcomes of Metabolic Syndrome among Patients with Acute Coronary Syndrome in the United Arab Emirates 
To evaluate clinical profiles, management and in-hospital outcomes of acute coronary syndrome (ACS) patients with metabolic syndrome (MetS) in the United Arab Emirates (UAE).
MetS was defined according to the criteria for its diagnosis by the International Diabetes Federation (IDF) and the American Heart Association/National Heart, Lung and Blood Institute (AHA/NHLBI). Participants were admitted to various hospitals in the UAE with a diagnosis of ACS in 2007 as part of the Gulf Registry of Acute Coronary Events (Gulf RACE) project. We compared baseline characteristics, treatment patterns, and in-hospital outcomes stratified by MetS status.
Of 1259 patients with ACS in the UAE (mean age: 52 ± 11 years, 88.8% males), the majority (n = 851, 67.6%) had MetS. MetS patients were more frequently males (86.4 vs 13.6%; P < 0.001). They were more obese (waist circumference and BMI, P < 0.001) as compared with non-MetS patients. MetS was more frequently associated with hypertension (51.1 vs 37.7%; P < 0.001) and diabetes mellitus (45.6 vs 24.3%; P < 0.001). After multivariate adjustment, certain MetS criteria rather than MetS itself were associated with higher in-hospital mortality and heart failure. Paradoxically, hypertension was associated with lower in-hospital mortality.
Prevalence of MetS among patients with ACS in our study population was high. Certain MetS criteria were associated with higher in-hospital mortality and heart failure.
PMCID: PMC3414714  PMID: 22888374
acute coronary syndrome; Gulf Registry of Acute Coronary Events; metabolic syndrome; Middle East; obesity; United Arab Emirates.
2.  Characteristics and in-hospital outcomes of patients with acute coronary syndromes and heart failure in the United Arab Emirates 
BMC Research Notes  2012;5:534.
Heart failure (HF) is a serious complication of acute coronary syndromes (ACS), and is associated with high in-hospital mortality and poor long-term survival. The aims of this study were to describe the clinical characteristics, management and in-hospital outcomes of coronary syndrome (ACS) patients with HF in the United Arab Emirates.
The study was selected from the Gulf Registry of Acute Coronary Events (Gulf RACE), a prospective multi-national, multicenter registry of patients hospitalized with ACS in six Middle East countries. The present analysis was focused on participants admitted to various hospitals in the UAE with a diagnosis of ACS in 2007 and were analyzed in terms of HF (Killip class II/III and IV) on admission. Of 1691 patients (mean age: 52.6 ± 11.7 years; 210 Females, 1481 Males) with ACS, 356 (21%) had an admission diagnosis of HF (Killip class II/III and IV). HF patients were less frequently males (19.2% vs. 34.3%; P < 0.001). HF was more frequently associated with hypertension (64.3% vs. 43.9%; P < 0.001), hyperlipidemia (49.4% vs. 31.8%; P < 0.001) and diabetes mellitus (DM) (51.1% vs. 36.2%; P < 0.001). HF was significantly associated with in-hospital mortality (OR = 11.821; 95% CI: 5.385-25.948; P < 0.001). In multivariate logistic regression, age, hyperlipidemia, heart rate and DM were associated with higher in-hospital HF.
HF is observed in about 1 in 5 patients with ACS in the UAE and is associated with a significant increase in in-hospital mortality and other adverse outcomes.
PMCID: PMC3527184  PMID: 23014157
Heart failure; Acute coronary syndrome; United Arab Emirates
3.  Obesity hypoventilation syndrome in obstructive sleep apnea patients in the United Arab Emirates: a retrospective cross-sectional study 
JRSM Short Reports  2013;4(12):2042533313510156.
To estimate the frequency of symptoms of obesity hypoventilation syndrome (OHS) in patients with obstructive sleep apnoea (OSA) and to evaluate comorbidities associated with OHS.
Retrospective study based on patients' medical records and on further sleep tests performed in the study centre during the inclusion visit.
Respiratory Care Unit and Sleep Disorder Centre of the Zayed Military Hospital United Arab Emirates.
All patients referred to the study centre for a suspicion of sleep-disordered breathing.
Main outcome measures
Prevalence of OSA and OSA + OHS and comorbidities in patients with OSA and OHS.
A total of 212 adult patients participated in the study. Of these, 107 patients (50.5% [43.8–57.1% CI 95%]) fulfilled diagnostic criteria for OSA, and the majority were men (79.4%). Among patients with OSA, 18 patients (16.8% [10.8–25.1% CI 95%]) fulfilled diagnostic criteria for OHS. In this group, women were more frequently affected than men (31.8% [7/22] vs. 12.9% [11/85], respectively; p = 0.03) and tended to be older than affected men, with a mean age of 55 ± 10.6 years versus 46 ± 13 for men. After adjustment for gender, OHS was significantly associated with hypertension (OR = 3.5; p = 0.03), diabetes mellitus (OR = 4.6; p = 0.02), ischaemic heart disease (OR = 5.1; p = 0.04) and pulmonary hypertension (OR = 16.1; p = 0.001).
OHS is a common condition in obese patients in the UAE and is associated with an increased risk of cardiovascular comorbidities and diabetes.
PMCID: PMC3899737  PMID: 24475348
obesity; Pickwickian syndrome; obstructive sleep apnoea; hyperpnoea syndrome; pulmonary hypertension; obstructive lung disease; restrictive lung disease
4.  Type 2 diabetes care for patients in a tertiary care setting in UAE: a retrospective cohort study 
JRSM Short Reports  2012;3(10):67.
We aimed to examine the quality of type 2 diabetes mellitus (T2DM) care in Al-Ain, in the United Arab Emirates (UAE).
A retrospective cohort study from 2008 to 2010.
A diabetes centre located in a tertiary care hospital in Al-Ain, UAE.
People with T2DM receiving care from the diabetes centre.
382 Emirates patients with T2DM were included in the analysis. Overall in 2010, proportions of people with T2DM reaching the following targets were: glycated haemoglobin (HbA1c) 41%, low-density lipoprotein (LDL) 72%, systolic and diastolic blood pressure (SBP/DBP) 47% and 73%, respectively. There was a significant improvement from 2008 to 2010, respectively, in the mean for the following: (1) HbA1c (8.5% [95% confidence interval, CI: 8.33–8.67] versus 7.5% [95% CI: 7.36–7.63]); (2) LDL (2.60 mmol/L [95% CI: 2.51–2.70] versus 2.27 mmol/L [95% CI: 2.21–2.33]); and (3) SBP (133.1 mmHg [95% CI: 131.7–134.4] versus 131.0 [95% CI: 130.1–131.9]). Glycaemic and lipid control were similar in men and women; however, HbA1c levels in men and women aged 60+ years were significantly lower by (0.7% [P = 0.01] versus 0.8% [P < 0.001], respectively) than for those aged between 18 and 39 years.
This study demonstrates that there is encouraging progress in diabetes care in Al-Ain, UAE as reflected by the overall improvement in the mean of HbA1c, LDL and SBP, and the increase in the number of people reaching the target for the same indicators from 2008 to 2010. The results however show that there is scope for additional enhancement of care, especially for better glycaemic control among young patients and better SBP control among men.
PMCID: PMC3499960  PMID: 23162680
5.  Gender Disparities in the Presentation, Management and Outcomes of Acute Coronary Syndrome Patients: Data from the 2nd Gulf Registry of Acute Coronary Events (Gulf RACE-2) 
PLoS ONE  2013;8(2):e55508.
Gender-related differences in mortality of acute coronary syndrome (ACS) have been reported. The extent and causes of these differences in the Middle-East are poorly understood. We studied to what extent difference in outcome, specifically 1-year mortality are attributable to demographic, baseline clinical differences at presentation, and management differences between female and male patients.
Methodology/Principal Findings
Baseline characteristics, treatment patterns, and 1-year mortality of 7390 ACS patients in 65 hospitals in 6 Arabian Gulf countries were evaluated during 2008–2009, as part of the 2nd Gulf Registry of Acute Coronary Events (Gulf RACE-2). Women were older (61.3±11.8 vs. 55.6±12.4; P<0.001), more overweight (BMI: 28.1±6.6 vs. 26.7±5.1; P<0.001), and more likely to have a history of hypertension, hyperlipidemia or diabetes. Fewer women than men received angiotensin-converting enzyme inhibitors (ACE), aspirin, clopidogrel, beta blockers or statins at discharge. They also underwent fewer invasive procedures including angiography (27.0% vs. 34.0%; P<0.001), percutaneous coronary intervention (PCI) (10.5% vs. 15.6%; P<0.001) and reperfusion therapy (6.9% vs. 20.2%; P<0.001) than men. Women were at higher unadjusted risk for in-hospital death (6.8% vs. 4.0%, P<0.001) and heart failure (HF) (18% vs. 11.8%, P<0.001). Both 1-month and 1-year mortality rates were higher in women than men (11% vs. 7.4% and 17.3% vs. 11.4%, respectively, P<0.001). Both baseline and management differences contributed to a worse outcome in women. Together these variables explained almost all mortality disparities.
Differences between genders in mortality appeared to be largely explained by differences in prognostic variables and management patterns. However, the origin of the latter differences need further study.
PMCID: PMC3566183  PMID: 23405162
6.  The prevalence and correlates of depression and anxiety in a sample of diabetic patients in Sharjah, United Arab Emirates 
BMC Family Practice  2010;11:80.
Type 2 diabetes is very prevalent in the Gulf region, particularly in the United Arab Emirates (UAE) which has the second highest prevalence in the world. Factors contributing to this include changes in diet, adoption of sedentary lifestyles, and the consequent increase in rates of obesity. These changes are primarily due to rapid economic development and affluence. The aim of this study was to estimate the prevalence of psychological distress and its correlates in diabetic patients in the United Arab Emirates.
Patients diagnosed with diabetes attending diabetes mini-clinics in the primary health care centres or hospitals of Sharjah were invited to participate in this cross-sectional study. Patients were interviewed using structured questionnaires to gather data on socio-demographics, lifestyle factors, diabetes complications, and medication usage. The K6 was administered as a screening tool for mental health concerns.
Three hundred and forty-seven participants completed the interview. The majority of participants were females (65.4%) and the mean age was 53.2 (sd = 14.6). Approximately 12.5% of patients obtained a score of 19 or above (cut-off score) on the K6, indicating possible mental health concerns. Twenty-four percent had diabetes complications, mainly in the form of retinopathy, peripheral vascular disease and peripheral neuropathy. A significant relationship was found between scores on the K6, these complications of diabetes and the use of oral hypoglycemic and lipid lowering therapies.
The results of this study demonstrate a strong correlation between mental health status and diabetic complications. In particular, patients who are depressed tended to have poorer self-care, more severe physical symptoms and were less likely to adhere to prescribed care regimens. These findings raise the possibility that improving the mental health as part of a comprehensive management plan for diabetes may improve the overall long term outcomes of these patients.
PMCID: PMC2987911  PMID: 20973956
7.  Knowledge, Attitude and Practices of Diabetic Patients in the United Arab Emirates 
PLoS ONE  2013;8(1):e52857.
Diabetes self-management education is a cornerstone of diabetes care. However, many diabetics in the United Arab Emirates (UAE) lack sufficient knowledge about their disease due to illiteracy. Thus, before considering any possible intervention it was imperative to assess present knowledge, attitudes, and practices of patients towards the management of diabetes.
A random sample of 575 DM patients was selected from diabetes outpatient's clinics of Tawam and Al-Ain hospitals in Al-Ain city (UAE) during 2006–2007, and their knowledge attitude and practice assessed using a questionnaire modified from the Michigan Diabetes Research Training Center instrument.
Thirty-one percent of patients had poor knowledge of diabetes. Seventy-two had negative attitudes towards having the disease and 57% had HbA1c levels reflecting poor glycemic control. Only seventeen percent reported having adequate blood sugar control, while 10% admitted non-compliance with their medications. Knowledge, practice and attitude scores were all statistically significantly positively, but rather weakly, associated, but none of these scores was significantly correlated with HbA1c.
The study showed low levels of diabetes awareness but positive attitudes towards the importance of DM care and satisfactory diabetes practices in the UAE. Programs to increase patients' awareness about DM are essential for all diabetics in the UAE in order to improve their understanding, compliance and management and, thereby, their ability to cope with the disease.
PMCID: PMC3544806  PMID: 23341913
8.  Prevalence of diabetic retinopathy in the United Arab Emirates: a cross-sectional survey 
BMC Ophthalmology  2007;7:11.
Diabetic retinopathy (DR) is one of the leading causes of blindness. The aim of this study was to estimate the prevalence and determinants of retinopathy among diabetics in Al-Ain city, United Arab Emirates (UAE).
The study was part of a general cross-sectional survey carried out to assess the prevalence of diabetes (DM) complications including retinopathy among known diabetic patients in Al-Ain District, UAE. Patients were randomly selected during 2003/2004. Patients completed an interviewer-administered questionnaire carried out by treating doctors and underwent a complete medical assessment. All patients were examined for evidence of diabetic retinopathy by ophthalmologist and their fundi were examined using slit lamp examination and fundus photography of each eye through dilated pupils.
A sample of 513 diabetic patients was selected with a mean age of 53 years (SD ± 13.01). Retinopathy was present in 19% (95% CI: 15.1–23.5%) of the study population. Most patients (74%) were not aware of their condition. The disease was more common among males (24.2 vs. 13.9%; p = 0.016), increased with increasing age (p = 0.004) and disease duration (p = 0.0001). Type I DM was a highly significantly contributing risk factor (38.3% for type 1, vs. 16.4% for type 2; p < 0.0001). Retinopathy was higher among patients with hypertension, microalbuminuria, peripheral vascular disease, coronary artery disease and neuropathy.
The prevalence of DR in the UAE was (19%) and significantly affected elderly males. Regular screening to detect DR is highly recommended as with the early detection of proliferative retinopathy and timely laser photocoagulation which are known to prevent most of the diabetes related blindness.
PMCID: PMC1913498  PMID: 17572909
9.  Gender-related differences in the presentation, management, and outcomes among patients with acute coronary syndrome from Oman 
To assess gender-related differences in the presentation, management, and in-hospital outcomes among acute coronary syndrome (ACS) patients from Oman.
Data were analyzed from 1579 consecutive ACS patients from Oman during May 8, 2006 to June 6, 2006 and January 29, 2007 to June 29, 2007, as part of Gulf RACE (Registry of Acute Coronary Events). Analyses were conducted using univariate and multivariate statistical techniques.
In this study, 608 (39%) patients were women with mean age 62 ± 12 vs. 57 ± 13 years (p < 0.001). More women were seen in the older age groups (age <55 years: 25% vs. 43%, 55–74 years: 60% vs. 49% and >75 years: 15% vs. 8%; p < 0.001). Women had higher frequencies of diabetes, hypertension, hyperlipidemia, obesity, angina, and aspirin use, but less history of smoking. Women were significantly less likely to have ischemic chest pain, ST-elevation myocardial infarction (STEMI), non-STEMI and were more likely to have dyspnea, unstable angina, ST depression and left bundle branch block. Both groups received ACS medications and cardiac catheterization equally; however, women received anticoagulants (88% vs. 79%; p < 0.001), angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin II receptor blockers (ARBs) (70% vs. 65%; p = 0.050) more and clopidogrel less (20% vs. 29%; p < 0.001). Women experienced more recurrent ischemia and heart failure but with similar in-hospital mortality (4.6% vs. 4.3%) even after adjusting for age (p = 0.500).
Women admitted with ACS were older than men, had more risk factors, presented differently with no difference in hospital mortality. This is similar to Gulf RACE study except for mortality. Women received anticoagulants/ACEIs /ARBs more but were under-treated with clopidogrel.
PMCID: PMC3727510  PMID: 23960630
Gender-related differences; Women; Acute coronary syndrome; Oman
10.  Prevalence, Predictors, and Impact of Low High-Density Lipoprotein Cholesterol on in-Hospital Outcomes Among Acute Coronary Syndrome Patients in the Middle East 
To estimate the prevalence, predictors, and impact of low high-density lipoprotein cholesterol (HDL-C) on in-hospital outcomes among acute coronary syndrome (ACS) patients in the Middle East.
Data were collected prospectively from 6,266 consecutive patients admitted with a diagnosis of ACS and enrolled in the Gulf Registry of Acute Coronary Events (Gulf RACE). A low HDL-C was defined as a level <40 mg/Dl (1.0 mmol/L) for males and <50 mg/dL (1.3 mmol/L) for females. Analyses were performed using univariate and multivariate statistical techniques.
The overall mean age of the cohort was 56±12 years and majority were males (77%). The overall prevalence of low HDL-C was 62%. During in-hospital stay and at discharge, the majority were on statin therapy (83%) while 10% were on other cholesterol lowering agents. After adjustment of demographic and clinical characteristics, the predictors for low HDL-C were higher body mass index (BMI), prior myocardial infarction (MI), diabetes mellitus, smoking and impaired renal function. Multivariable adjustment revealed that low HDL-C was associated with higher in-hospital mortality (odds ratio (OR), 1.54; 95% CI: 1.06-2.24; p=0.022) and cardiogenic shock (OR, 1.61; 95% CI: 1.20-2.14; p=0.001).
ACS patients in the Middle East have a high prevalence of low HDL-C. Higher BMI, prior MI, diabetes mellitus, smoking, and impaired renal function were predictors of low HDL-C. Significantly higher in-hospital mortality and cardiogenic shock were associated with low HDL-C in men but not in women.
PMCID: PMC3178900  PMID: 21966331
High density lipoprotein cholesterol; low density lipoprotein cholesterol; triglycerides; acute coronary syndrome; myocardial infarction; gender; Middle East.
11.  Off-pump versus on-pump coronary artery bypass grafting in acute coronary syndrome: a clinical analysis 
Although off-pump coronary artery bypass (OPCAB) surgery has many beneficial effects compared with on-pump surgery, switch to on-pump surgery has significantly higher risks of operative mortality. Benefits of OPCAB over on-pump surgery strategies concerning myocardial revascularization are still debatable. We have aimed to develop an "algorithm of off-pump surgical strategy" on preventing conversion to on-pump. This clinical study reports our clinical outcome of OPCAB in patients with acute coronary syndrome.
Between January 2006 and December 2008, 198 patients with acute coronary syndrome were enrolled in the study. Decision of OPCAB (142 patients) or on-pump surgery (56 patients) was made according to patients' present clinical status and our surgical background. Cardiac enzymes, duration of the surgery, graft numbers, stay in intensive care unit were recorded.
OPCAP group has shorter operation time (82.78 min versus 164.22 min, p < 0.001), lesser necessity for intra-aortic balloon pumping (3.5% versus 12.5%, p = 0.053), shorter duration of intensive care unit stay (p < 0.05) and hospital stay (p < 0.001) compared to on-pump patients. EuroSCORE level was lower in OPCAP group (p < 0.001). None of the patients of OPCAB group required conversion to on-pump technique.
The patients who admitted to the hospital with acute coronary syndrome within "golden hours" (within 6 hours after onset) had a greater chance for OPCAB surgery. This study proves that EuroSCORE is likely to be an important factor in deciding which surgical technique to use, but a further investigation is needed to verify. According to our findings, a careful evaluation of coronary angiography, hemodynamic status, quality of target coronary vessel and timing of surgery are important for OPCAB surgery to avoid conversion to on-pump. By a careful systematic evaluation of the patients as explained with this article, it can be prevent or reduce conversion to on-pump surgery during OPCAB surgery.
PMCID: PMC2873363  PMID: 20423499
12.  Assessment of the direct medical costs of diabetes mellitus and its complications in the United Arab Emirates 
BMC Public Health  2010;10:679.
Diabetes mellitus (DM) is a major health problem in the United Arab Emirates (UAE) and is well recognized as a major and increasing burden to the country's resources due to its severe, long term debilitating effects on individuals, families and the society at large. The aim of the study was to estimate the direct annual treatment costs of DM and its related complications among patients in Al-Ain city, UAE.
A sample of 150 DM patients were enrolled during 2004-2005, and their medical costs over the ensuing 12 months was measured, quantified, analyzed and extrapolated to the population in Al-Ain and UAE, using conventional and inference statistics. The costs were converted from UAE Dirhams to US Dollar, using the official conversion rate of US$ (1 USD = 3.68 AED).
The total annual direct treatment costs of DM among patients without complications in Al Ain-UAE, was US $1,605 (SD = 1,206) which is 3.2 times higher than the per capita expenditure for health care in the UAE (US$ 497) during 2004 (WHO, 2004). However, this cost increased 2.2 times with the presence of DM related complications for patients with microvascular complications, by 6.4 times for patients with macrovascular complications and 9.4 times for patients with both micro and macrovascular complications. Likewise, the annual direct hospitalization costs of DM patients increased by 3.7 times for patients with microvascular complications, by 6.6 times for patients with macrovascular complications and by 5 times for patients with both micro and macrovascualr complications. Overall, costs increased with age, diabetes duration and were higher for patients treated with insulin compared to those treated with oral hypoglycemic agents or with diet control only.
DM direct treatment costs increased with the presence and progression of chronic DM related complications. Hospitalisation costs constituted a large proportion and were increasingly higher with the presence and progression of DM related complications. To reduce the impact on healthcare resources, efforts should be made to prevent progression to DM complications, by implementing guidelines for diabetes care, screening for complications and better management.
PMCID: PMC2988742  PMID: 21059202
13.  Relationship Between Admitting Nonfasting Blood Glucose and In-Hospital Mortality Stratified by Diabetes Mellitus Among Acute Coronary Syndrome Patients in Oman 
Background and Objectives:
Hyperglycemia in patients admitted for acute coronary syndrome (ACS) is associated with increased in-hospital mortality. We evaluated the relationship between admitting (nonfasting) blood glucose and in-hospital mortality in patients with and without diabetes mellitus (DM) presenting with ACS in Oman.
Patients and Methods:
Data were analyzed from 1551 consecutive patients admitted to 15 hospitals throughout Oman, with the final diagnosis of ACS during May 8, 2006 to June 6, 2006 and January 29, 2007 to June 29, 2007, as part of Gulf Registry of Acute Coronary Events. Admitting blood glucose was divided into four groups, namely, euglycemia (≤7 mmol/l), mild hyperglycemia (>7-<9 mmol/l), moderate hyperglycemia (≥9-<11 - mmol/l), and severe hyperglycemia (≥11 mmol/l).
Of all, 38% (n = 584) and 62% (n = 967) of the patients were documented with and without a history of DM, respectively. Nondiabetic patients with severe hyperglycemia were associated with significantly higher in-hospital mortality compared with those with euglycemia (13.1 vs 1.52%; P<0.001), mild hyperglycemia (13.1 vs 3.62%; P = 0.003), and even moderate hyperglycemia (13.1 vs 4.17%; P = 0.034). Even after multivariate adjustment, severe hyperglycemia was still associated with higher in-hospital mortality when compared with both euglycemia (odds ratio [OR], 6.3; P<0.001) and mild hyperglycemia (OR, 3.43; P = 0.011). No significant relationship was noted between admitting blood glucose and in-hospital mortality among diabetic ACS patients even after multivariable adjustment (all P values >0.05).
Admission hyperglycemia is common in ACS patients from Oman and is associated with higher in-hospital mortality among those patients with previously unreported DM.
PMCID: PMC3123510  PMID: 21731803
Acute coronary syndrome; admission hyperglycemia; diabetes mellitus; hyperglycemia; in-hospital mortality
14.  The Epidemiology of Acute Coronary Syndrome in Oman 
This study aimed to evaluate the epidemiology and coronary risk factors of acute coronary syndrome (ACS) in Oman.
Data were collected through a prospective, multinational, multicentre survey of consecutive patients, hospitalised over a 5-month period in 2007 with a diagnosis of ACS, in Yemen and five Arabian Gulf countries (Oman, Bahrain, Kuwait, Qatar, United Arab Emirates). Here we present data of Omani patients aged ≥20 years who received a provisional diagnosis of ACS and were consequently admitted to 14 different hospitals.
There where 1,340 confirmed ACS episodes in 748 men and 592 women (median age 61 years). The overall crude incidence rate of ACS was 338.9 per 100,000 person-years (P-Y). The age-standardised rate (ASR) of ACS was 779 and 674 per 100,000 P-Y for men and women, respectively. The ASR male-to-female rate ratio was highest in the ST-elevation myocardial infarction (STEMI) group (2.26, 95% confidence interval ([CI], 1.63 to 3.15) followed by the non-STEMI (NSTEMI) group (1.68, 95% CI 1.28 to 2.21) and unstable angina (0.79, 95% CI 0.66 to 0.99). Unstable angina accounted for 55%, STEMI for 26% and NSTEMI for 19% of ACS cases. Among the coronary risk factors, there was a high prevalence of hypertension (68%), diabetes mellitus (DM) (36%), hyperlipidaemia (63%), and overweight/obesity (65%), with a relatively low rate of current tobacco use (11%).
Our study confirms a high incidence of ACS in Omanis and supports the notion that the cardiovascular disease epidemic is also sweeping developing countries.
PMCID: PMC3616799  PMID: 23573381
Acute coronary syndrome; Incidence; Cardiovascular disease; Ischemic heart disease; Risk factors; Oman
15.  Compliance of pharmacological treatment for non-ST-elevation acute coronary syndromes with contemporary guidelines: influence on outcomes 
Although the proven efficacy of evidence-based therapy in patients with cardiovascular diseases, the recommendations are not always instituted. We aimed to analyse the compliance of non-ST-elevation acute coronary syndrome (NSTE-ACS) patients with treatment guidelines and to assess the impact of these measures in hospital death during the index hospitalization.
Population and methods
All consecutive patients (pts) included in the Portuguese Registry on Acute Coronary Syndromes (ProACS) between January 1, 2002 and August 31, 2011 were analysed. Compliance with Guidelines for the management of NSTE-ACS was evaluated with a 6-point therapeutic score (ThSc), comprising the treatment with: aspirin, clopidogrel, heparin, beta-blocker, angiotensin-converting enzyme inhibitor and statin. One point was assigned for each drug prescribed and zero if not given. The total therapeutic compliance was defined as ThSc =6 points.
The final analysis comprised 14,276 pts (67.1% male; mean age 67.6±12.3 years), most of them admitted with non-ST elevation myocardial infarction (77.4%). The mean value of ThSc was 4.9±1.1 and total compliance occurred in 36.7% pts. Centres with percutaneous coronary intervention (PCI) capacity had a statistically significant higher ThSc (5.0±1.0 vs. 4.8±1.1, P<0.001) and were associated with higher total compliance [OR 1.53, 95% confidence intervals (CI), 1.42-1.65, P<0.001]. In-hospital mortality was 2.4% (354 deaths). Compared to pts who died, the survivors had a higher ThSc (4.9±1.1 vs. 4.2±1.3, P<0.001) and this score was independently associated with lower risk of in-hospital mortality (OR 0.70, 95% CI, 0.64-0.77, P<0.001). Receiver operating characteristics curve analysis showed a good accuracy of ThSc for the occurrence of in-hospital mortality with the area under the curve (AUC) 0.82 (95% CI, 0.80-0.84, P<0.001), sensitivity 71.6% and specificity 78.0%. Age, peripheral artery disease, Killip-Kimball class >I, electrocardiogram (ECG) with ST-segment depression and positive troponin were other independent predictors of in-hospital mortality.
In the present study, patients with NSTE-ACS who received medications recommended by guidelines had better in-hospital outcomes. These findings highlight the need to clarify the clinical recommendations and to develop approaches for quality improvement in this subset of patients.
PMCID: PMC3943774  PMID: 24649420
Non-ST-elevation acute coronary syndrome (NSTE-ACS); compliance; guidelines
16.  Factors affecting the motivation of healthcare professionals providing care to Emiratis with type 2 diabetes 
JRSM Short Reports  2013;4(2):14.
We aimed to identify facilitators of and barriers to healthcare professionals' motivation in a diabetes centre in the United Arab Emirates (UAE).
A qualitative research approach was employed using semistructured interviews to assess perception of and attitudes regarding healthcare professionals' motivation in providing good quality diabetes care.
A diabetes centre located in Abu-Dhabi, UAE.
Healthcare professionals including specialist physicians, dieticians, podiatrists, health educators and nurses were recruited through purposive sampling.
Main outcome measures
After data collection, the audiotaped interviews were transcribed verbatim and subjected to content analysis.
Nine semistructured interviews were conducted with healthcare professionals of various professional backgrounds. Important facilitators and barriers related to patient, professional, organization and cultural factors were identified. Barriers that related to heavy workload, disjointed care, lack of patient compliance and awareness, and cultural beliefs and attitudes about diabetes were common. Key facilitators included the patient's role in achieving therapeutic outcomes as well as compliance, cooperation and communication.
This qualitative study provides some unique insights about factors affecting healthcare professionals' motivation in providing good quality care. To improve the motivation of healthcare professionals in the management of diabetes and therefore the quality of diabetes care, several steps are needed. Importantly, the role of primary care should be reinforced and strengthened regarding the management of type 2 diabetes mellitus, privacy of the consultation time should be highly protected and regulated, and awareness of the Emirate culture and its impact on health should be disseminated to the healthcare professionals providing care to Emirates with diabetes. Also, greater emphasis should be placed on educating Emiratis with diabetes on, and involving them in, the management of their condition.
PMCID: PMC3591689  PMID: 23476735
17.  Gender differences in management and outcome in non‐ST‐elevation acute coronary syndrome 
Heart  2006;93(11):1357-1362.
To study gender differences in management and outcome in patients with non‐ST‐elevation acute coronary syndrome.
Design, setting and patients
Cohort study of 53 781 consecutive patients (37% women) from the Register of Information and Knowledge about Swedish Heart Intensive care Admissions (RIKS‐HIA), with a diagnosis of either unstable angina pectoris or non‐ST‐elevation myocardial infarction. All patients were admitted to intensive coronary care units in Sweden, between 1998 and 2002, and followed for 1 year.
Main outcome measures
Treatment intensity and in‐hospital, 30‐day and 1‐year mortality.
Women were older (73 vs 69 years, p<0.001) and more likely to have a history of hypertension and diabetes, but less likely to have a history of myocardial infarction or revascularisation. After adjustment, there were no major differences in acute pharmacological treatment or prophylactic medication at discharge.
Revascularisation was, however, even after adjustment, performed more often in men (OR 1.15; 95% CI, 1.09 to 1.21). After adjustment, there was no significant difference in in‐hospital (OR 1.03; 95% CI, 0.94 to 1.13) or 30‐days (OR 1.07; 95% CI, 0.99 to 1.15) mortality, but at 1 year being male was associated with higher mortality (OR 1.12; 95% CI, 1.06 to 1.19).
Although women are somewhat less intensively treated, especially regarding invasive procedures, after adjustment for differences in background characteristics, they have better long‐term outcomes than men.
PMCID: PMC2016903  PMID: 17085528
18.  Factors affecting mortality of hospitalized chest trauma patients in United Arab Emirates 
Predictors of mortality of chest trauma vary globally. We aimed to define factors affecting mortality of hospitalized chest trauma patients in Al-Ain City, United Arab Emirates.
The data of Al-Ain Hospital Trauma Registry were prospectively collected over a period of three years. Patients with chest trauma who were admitted for more than 24 hours in Al-Ain Hospital or who died after arrival to the hospital were included in the study. Univariate analysis was used to compare patients who died and those who survived. Gender, age, nationality, mechanism of injury, systolic blood pressure and GCS on arrival, the need for ventilatory support, presence of head injury, AIS for the chest and head, presence of injuries outside the chest, and ISS were studied. Significant factors were then entered into a backward stepwise likelihood ratio logistic regression model.
474 patients having a median (range) age of 35 (1–90) years were studied. 90% were males and 18% were UAE citizens. The main mechanism of injury was road traffic collisions (66%) followed by falls (23.4%). Penetrating trauma occurred in 4 patients (0.8%). 88 patients (18.6%) were admitted to the ICU. The median (range) ISS was 5 (1–43). 173 patients (36.5%) had isolated chest injury. Overall mortality rate was 7.2%. Mortality was significantly increased by low GCS (p < 0.0001), high ISS (p = 0.025), and low systolic blood pressure on arrival (p = 0.027).
Chest trauma is associated with a significant mortality in Al-Ain City. This was significantly related to the severity of head injury, injury severity score, and hypotension on arrival.
PMCID: PMC3621679  PMID: 23547845
Chest; Thorax; Trauma; Injury; Mortality
19.  Associations between ST depression, four year mortality, and in-hospital revascularisation in unselected patients with non-ST elevation acute coronary syndromes 
Heart  2003;89(5):490-495.
Objective: To determine the associations between changes on the presenting ECG, in-hospital revascularisation, and four year mortality in patients with non-ST elevation acute coronary syndromes.
Design: Prospective evaluation of all consecutive patients admitted in 1993 to the Green Lane Hospital coronary care unit, Auckland, New Zealand. Late follow up was undertaken at a median of 52 months. The ECGs were analysed after the hospital admission.
Setting: Tertiary referral centre with direct local coronary care unit admissions.
Interventions: Patients underwent physician recommended in-hospital revascularisation or initial conservative management.
Results: The four year survival was 88% in the 115 patients who underwent revascularisation (65 (19%) percutaneous and 53 (16%) surgical revascularisation), compared with 75% in 316 patients managed conservatively (p = 0.024). Four year survival for patients undergoing revascularisation versus initial conservative management with respect to ECG groups was: no ECG changes (n = 101), 97% v 92% (p = 0.35); T wave inversion or 0.5 mm ST depression (n = 108), 89% v 78% (p = 0.18); ST depression ≥ 1 mm (n = 122), 80% v 58% (p = 0.014); χ2 = 29, p < 0.001 for the linear trend across the groups. On multivariate analysis, independent predictors of four year mortality were: age (odds ratio (OR) 1.05, 95% confidence interval (CI) 1.01 to 1.08; p = 0.0046); ECG group (OR 1.88, 95% CI 1.21 to 2.95; p = 0.043); radiological pulmonary oedema (OR 2.81, 95% CI 1.18 to 7.05; p = 0.025); and revascularisation (OR 0.43, 95% CI 0.20 to 0.90; p = 0.023).
Conclusions: Among unselected patients with non-ST elevation acute coronary syndromes, in-hospital revascularisation is associated with decreased mortality at up to four years after admission. This association appears greater in patients with ST depression of ≥ 1 mm on the presenting ECG.
PMCID: PMC1767628  PMID: 12695448
mortality; revascularisation; acute coronary syndrome
20.  Paradoxical use of invasive cardiac procedures for patients with non-ST segment elevation myocardial infarction: An international perspective from the CRUSADE Initiative and the Canadian ACS Registries I and II 
The Canadian Journal of Cardiology  2007;23(13):1073-1079.
Practice guidelines support an early invasive strategy in patients with non-ST segment elevation acute coronary syndromes, particularly in those at higher risk.
To compare North American rates of invasive cardiac procedure use stratified by risk.
Use of invasive cardiac procedures and other care patterns in patients with non-ST segment elevation acute coronary syndromes from the United States (US) Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the ACC/AHA guidelines (CRUSADE) National Quality Improvement Initiative (n=88,097; 465 hospitals) and Canadian ACS Registries I (n=1270; 51 hospitals) and II (n=1473; 36 hospitals) were compared after dividing patients into different risk categories based on predicted risk of in-hospital mortality.
While the overall use of invasive procedures was higher in the US, high-risk patients were least likely to undergo coronary angiography (41% versus 64% in Canada [P<0.0001] and 53% versus 76% in the United States [P<0.0001]) and percutaneous coronary intervention (14% versus 32% in Canada [P<0.0001] and 28% versus 51% in the US [P<0.0001]) compared with low-risk patients in both countries, and had longer median waiting times for these procedures (120 h versus 96 h in Canada [P<0.0001] and 34 h versus 23 h in the US [P<0.0001] for coronary angiography).
The inverse relationship between risk level and the use of invasive cardiac procedures for patients in the US and Canada suggests that a risk stratification-guided approach for triaging patients to an early invasive management strategy is paradoxically used. This incongruous relationship holds true regardless of resource availability or overall rates of cardiac catheterization.
PMCID: PMC2651932  PMID: 17985010
Acute coronary syndromes; Guidelines
21.  The molecular epidemiology of Stenotrophomonas maltophilia bacteraemia in a tertiary referral hospital in the United Arab Emirates 2000–2004 
Stenotrophomonas maltophilia is recognised as an important cause of nosocomial infection, especially in immunocompromised patients, resulting in significant morbidity and mortality. The treatment of S. maltophilia infection presents a therapeutic challenge. The precise modes of transmission of S. maltophilia in the hospital environment are not known and such knowledge is essential to target interventions to prevent spread. There are few published data on the patterns of nosocomial infection in the United Arab Emirates (UAE). A recent study showed that S. maltophilia is an established cause of bloodstream infection in Tawam Hospital in the UAE. Little is known about its epidemiology in the hospital.
We describe the clinical characteristics of 25 episodes of S. maltophilia bacteraemia which occurred from 2000–2004. The strains were characterised using pulsed field gel electrophoresis (PFGE).
All episodes were hospital-acquired and malignancy and central venous catheters were predisposing factors. Catheter-associated infection comprised 88% infection. Catheter removal was important for the successful management of catheter-associated infection. The results of PFGE suggested that there were as many strains as patients. S. maltophilia strains isolated from the same patient had indistinguishable PFGE profiles.
PFGE is a valid and reproducible typing method for S. maltophilia. The precise sources and modes of spread of S. maltophilia in the hospital are still not known. Knowledge that person to person transmission was not a major mode of transmission enabled infection control interventions for S. maltophilia to be targeted more effectively.
PMCID: PMC1774578  PMID: 17194302
22.  Magnitude and consequences of undertreatment of high‐risk patients with non‐ST segment elevation acute coronary syndromes: insights from the DESCARTES Registry 
Heart  2006;92(11):1571-1576.
To analyse intensity of treatment of high‐risk patients with non‐ST elevation acute coronary syndromes (NSTEACS) included in the DESCARTES (Descripción del Estado de los Sindromes Coronarios Agudos en un Registro Temporal Español) registry.
Patients and setting
Patients with NSTEACS (n  =  1877) admitted to 45 randomly selected Spanish hospitals in April and May 2002 were studied.
Patients with ST segment depression and troponin rise were considered high risk (n  =  478) and were compared with non‐high risk patients (n  =  1399).
46.9% of high‐risk patients versus 39.5% of non‐high‐risk patients underwent angiography (p  =  0.005), 23.2% versus 18.8% (p  =  0.038) underwent percutaneous revascularisation, and 24.9% versus 7.4% (p < 0.001) were given glycoprotein IIb/IIIa inhibitor. In‐hospital and six‐month mortality were 7.5% versus 1.1% and 17% versus 4.6% (p < 0.001), respectively. A treatment score (⩾ 4, 2–3 and < 2) was defined according to the number of class I interventions recommended in clinical guidelines: aspirin, clopidogrel, β blockers, angiotensin‐converting enzyme inhibitors, statins and revascularisation. Independent predictors of six‐month mortality were age (odds ratio (OR) 1.07, 95% confidence interval (CI) 1.04 to 1.10, p < 0.001), diabetes (OR 1.92, 95% CI 1.14 to 3.22, p  =  0.014), previous cardiovascular disease (OR 4.17, 95% CI 1.63 to 10.68, p  =  0.003), high risk (OR 2.20, 95% CI 1.30 to 3.71, p  =  0.003) and treatment score < 2 versus ⩾ 4 (OR 2.87, 95% CI 1.27 to 6.52, p  =  0.012).
Class I recommended treatments were underused in high‐risk patients in the DESCARTES registry. This undertreatment was an independent predictor of death of patients with an acute coronary syndrome.
PMCID: PMC1861221  PMID: 16644860
23.  Clinical Characteristics and Outcomes of Patients with Acute Coronary Syndrome and Prior Coronary Artery Bypass Grafting in a Large Middle Eastern Cohort 
Acute Coronary Syndrome (ACS) can occur in patients with prior coronary artery bypass grafting (CABG). In the Gulf Registry of acute coronary events (Gulf RACE), we identified the clinical characteristics and in-hospital outcomes of these patients.
Clinical characteristics and in-hospital outcomes for 461 ACS patients with prior CABG are compared to 7715 ACS patients without prior CABG enrolled from 64 hospitals in 6 Gulf countries over a 6-month period.
The overall incidence of ACS with prior CABG was 5.6% out of 8176 patients. The ACS with prior CABG were older (63 vs 55 years, P<0.0001), had more history of diabetes (62.3 vs 37.6%, P <0.0001), dyslipidemia (70.3 vs 29.5%, P<0.0001), and hypertension (75.7 vs 47.8%, P<0.0001) compared with the non-CABG group. They presented more frequently with dyspnea (14.8 vs 9.5%, P<0.0005), non-ST segment elevation myocardial infarction (41.4 vs 31.6%, P<0.0001) and echocardiographic evidence of left ventricular dysfunction (49.4 vs 29.8%, P<0.0001) than ACS without prior CABG. They had a complicated in-hospital course with more recurrent ischemia (13.9 vs 9.3%, P=0.0011), heart failure (24.1 vs 15.7%), and stroke (2.2 vs 0.6%) compared with those without CABG. The in-hospital mortality rate was 5.6% in the CABG group compared with 3.5% in the ACS without prior CABG group. After adjusting for confounders, prior CABG was independently associated with recurrent ischemia and shock, more in patients presenting with ST elevation than non-ST elevation ACS.
Patients with ACS and prior CABG are a high-risk group with poor outcomes irrespective of their older age and comorbidities. They should be identified and treated differently to improve their outcomes.
PMCID: PMC3170976  PMID: 21915225
Acute Coronary Syndrome; Angioplasty; Comorbidity; Coronary Artery Bypass Grafting; Risk factors; Stroke.
24.  Ticagrelor versus clopidogrel in patients with acute coronary syndromes intended for non-invasive management: substudy from prospective randomised PLATelet inhibition and patient Outcomes (PLATO) trial 
Objective To evaluate efficacy and safety outcomes in patients in the PLATelet inhibition and patient Outcomes (PLATO) trial who at randomisation were planned for a non-invasive treatment strategy.
Design Pre-specified analysis of pre-randomisation defined subgroup of prospective randomised clinical trial.
Setting 862 centres in 43 countries.
Participants 5216 (28%) of 18 624 patients admitted to hospital for acute coronary syndrome who were specified as planned for non-invasive management.
Interventions Randomised treatment with ticagrelor (n=2601) versus clopidogrel (2615).
Main outcome measurements Primary composite end point of cardiovascular death, myocardial infarction, and stroke; their individual components; and PLATO defined major bleeding during one year.
Results 2183 (41.9%) patients had coronary angiography during their initial hospital admission, 1065 (20.4%) had percutaneous coronary intervention, and 208 (4.0%) had coronary artery bypass surgery. Cumulatively, 3143 (60.3%) patients had been managed non-invasively by the end of follow-up. The incidence of the primary end point was lower with ticagrelor than with clopidogrel (12.0% (n=295) v 14.3% (346); hazard ratio 0.85, 95% confidence interval 0.73 to 1.00; P=0.04). Overall mortality was also lower (6.1% (147) v 8.2% (195); 0.75, 0.61 to 0.93; P=0.01). The incidence of total major bleeding (11.9% (272) v 10.3% (238); 1.17, 0.98 to 1.39; P=0.08) and non-coronary artery bypass grafting related major bleeding (4.0% (90) v 3.1% (71); 1.30, 0.95 to 1.77; P=0.10) was numerically higher with ticagrelor than with clopidogrel.
Conclusions In patients with acute coronary syndrome initially intended for non-invasive management, the benefits of ticagrelor over clopidogrel were consistent with those from the overall PLATO results, indicating the broad benefits of P2Y12 inhibition with ticagrelor regardless of intended management strategy.
Trial registration Clinical trials NCT00391872.
PMCID: PMC3117310  PMID: 21685437
25.  Diet and Carbohydrate Food Knowledge of Multi-Ethnic Women: A Comparative Analysis of Pregnant Women with and without Gestational Diabetes Mellitus 
PLoS ONE  2013;8(9):e73486.
Diet therapy is the cornerstone for the management of gestational diabetes mellitus (GDM). Carbohydrate is the primary nutrient affecting postprandial blood glucose levels. Hence, knowledge of food containing carbohydrates can assist women with GDM optimize glycemic control. Despite that, there is a paucity of research on carbohydrate-related knowledge of women with GDM. The United Arab Emirates (UAE) has one of the highest prevalence of diabetes (19.2%) in the world. This study compared diet and knowledge of carbohydrate-containing foods among pregnant women with and without GDM in the UAE.
The sample consisted of multi-ethnic women with GDM (n = 94) and a control group of healthy pregnant women (n = 90) attending prenatal clinics in three hospitals in Al Ain, UAE. Data were collected using a questionnaire and a 24-hour recall. Knowledge of food sources of carbohydrate, dietary patterns, and nutrient intakes of the two groups were compared.
There were no significant differences in the mean knowledge score of food sources of carbohydrate between women with GDM and that of pregnant women without GDM. Similarly, there were no significant differences in energy and nutrient intakes between the two groups with the exception of percent energy from protein. Women with GDM reported significantly lower intake of fruits and fruit juices (P = 0.012) and higher consumption of milk and yogurt (P = 0.004) compared to that of women without GDM. Twenty-two percent of women with GDM indicated they never visited a dietitian for counseling while 65% reported they visited a dietitian only once or twice during the pregnancy. Predictors of carbohydrate knowledge score were perceived knowledge of diet and GDM and parity among women with GDM and parity and educational level among those without GDM.
The results of the study highlight the urgent need to provide nutrition education for women with GDM in the UAE.
PMCID: PMC3772003  PMID: 24069200

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