Background

The clinical importance of an elevated platelet count is often overlooked, particularly as a diagnostic clue to the presence of an underlying infection. We sought to better describe the relationship between thrombocytosis and inflammatory conditions, with a focus on infectious causes.

Methods

We retrospectively reviewed 801 sequential cases of thrombocytosis (platelet count > 500 × 109/L) at a tertiary care hospital.

Results

Essential thrombocythemia was the most common cause of primary thrombocytosis, and these patients were more likely to have extreme (> 800 × 109/L) and prolonged (> 1 month) thrombocytosis. Secondary thrombocytosis was more common than primary, with infectious causes accounting for nearly half the cases. Demographic factors associated with an infectious etiology included inpatient status, quadriplegia/paraplegia, an indwelling prosthesis, dementia and diabetes. Clinical and laboratory characteristics associated with an infectious cause of thrombocytosis included fever, tachycardia, weight loss, hypoalbuminemia, neutrophilia, leukocytosis and anemia. Patients with thrombocytosis secondary to infection had a more rapid normalization of platelet count, but higher risk of dying, than those with secondary, non-infectious causes.

Conclusions

Infection is a common cause of thrombocytosis and should be considered in patients with comorbidities that increase risk of infection and when clinical and/or laboratory data support an infectious etiology. Thrombocytosis may have prognostic implications as a clinical parameter.

Background

Overlap of cognitive and anxiety symptoms (i.e., difficulty concentrating, fatigue, restlessness) contributes to inconsistent, complicated assessment of generalized anxiety disorder (GAD)in persons with dementia.

Methods

Anxious dementia patients completed a psychiatric interview, the Penn State Worry Questionnaire-Abbreviated, and the Rating for Anxiety in Dementia scale. Analyses to describe the 43 patients with and without GAD included the Wilcoxon Mann-Whitney two-sample test, Fisher’s exact test. Predictors of GAD diagnosis were identified using logistic regression.

Results

Those with GAD were more likely to be male, have less severe dementia and endorsed more worry, and anxiety compared to patients without GAD. Gender, muscle tension and fatigue differentiated those with GAD from those without GAD.

Conclusions

Although this study is limited by a small sample, it describes clinical characteristics of GAD in dementia, highlighting the importance of muscle tension and fatigue in recognizing GAD in persons with dementia.

Background

Diabetes group clinics can effectively control hypertension, but data to support glycemic control is equivocal. This study evaluated the comparative effectiveness of two diabetes group clinic interventions on glycosolated hemoglobin (HbA1c) levels in primary care.

Methods

Participants (n = 87) were recruited from a diabetes registry of a single regional VA medical center to participate in an open, randomized comparative effectiveness study. Two primary care based diabetes group interventions of three months duration were compared. Empowering Patients in Care (EPIC) was a clinician-led, patient-centered group clinic consisting of four sessions on setting self-management action plans (diet, exercise, home monitoring, medications, etc.) and communicating about progress with action plans. The comparison intervention consisted of group education sessions with a diabetes educator and dietician followed by an additional visit with one’s primary care provider. HbA1c levels were compared post-intervention and at one-year follow-up.

Results

Participants in the EPIC intervention had significantly greater improvements in HbA1c levels immediately following the active intervention (8.86 to 8.04 vs. 8.74 to 8.70, mean [SD] between-group difference 0.67±1.3, P=.03) and these differences persisted at 1 year follow-up (.59±1.4, P=.05). A repeated measures analysis using all study time points found a significant time-by-treatment interaction effect on HbA1c levels favoring the EPIC intervention (F(2,85) =3.55, P= .03). The effect of the time-by-treatment interaction appears to be partially mediated by diabetes self-efficacy (F(1,85) =10.39, P= .002).

Conclusions

Primary care based diabetes group clinics that include structured goal-setting approaches to self-management can significantly improve HbA1c levels post-intervention and maintain improvements for 1-year.

Trial registration

ClinicalTrials.gov Identifier: NCT00481286

Background

Anxiety has a high prevalence among individuals with dementia, and it has a significant negative impact on their functioning; yet intervention studies are lacking. We developed Peaceful Mind, a cognitive-behavioral intervention for persons with dementia. In this article, we describe the intervention and results of an open trial evaluating the feasibility and utility of the intervention and assessment procedures.

Methods

Peaceful Mind is implemented over a period of 3 months in the participant's home with involvement of a caregiver or “collateral.” Dyads are followed for an additional 3 months via telephone. An assortment of simplified skills is offered, including self-awareness, breathing, behavioral activation, calming thoughts, and sleep skills.

Results

Nine participants were enrolled, eight completed the 3-month assessment, and seven completed the 6-month assessment. Overall, participants and collaterals were satisfied with the intervention and reported that they benefited in terms of anxiety, depression, and collateral distress.

Conclusions

A randomized controlled trial would help determine whether this promising new treatment has a statistically significant impact on anxiety in this population.

Objectives

Delayed diagnosis of colorectal cancer (CRC) is among the most common reasons for ambulatory diagnostic malpractice claims in the United States. Our objective was to describe missed opportunities to diagnose CRC before endoscopic referral, in terms of patient characteristics, nature of clinical clues, and types of diagnostic-process breakdowns involved.

Methods

We conducted a retrospective cohort study of consecutive, newly diagnosed cases of CRC between February 1999 and June 2007 at a tertiary health-care system in Texas. Two reviewers independently evaluated the electronic record of each patient using a standardized pretested data collection instrument. Missed opportunities were defined as care episodes in which endoscopic evaluation was not initiated despite the presence of one or more clues that warrant a diagnostic workup for CRC. Predictors of missed opportunities were evaluated in logistic regression. The types of breakdowns involved in the diagnostic process were also determined and described.

Results

Of the 513 patients with CRC who met the inclusion criteria, both reviewers agreed on the presence of at least one missed opportunity in 161 patients. Among these patients there was a mean of 4.2 missed opportunities and 5.3 clues. The most common clues were suspected or confirmed iron deficiency anemia, positive fecal occult blood test, and hematochezia. The odds of a missed opportunity were increased in patients older than 75 years (odds ratio (OR) = 2.3; 95% confidence interval (CI) 1.3–4.1) or with iron deficiency anemia (OR = 2.2; 95% CI 1.3–3.6), whereas the odds of a missed opportunity were lower in patients with abnormal flexible sigmoidoscopy (OR = 0.06; 95% CI 0.01–0.51), or imaging suspicious for CRC (OR = 0.3; 95% CI 0.1–0.9). Anemia was the clue associated with the longest time to endoscopic referral (median = 393 days). Most process breakdowns occurred in the provider–patient clinical encounter and in the follow-up of patients or abnormal diagnostic test results.

Conclusions

Missed opportunities to initiate workup for CRC are common despite the presence of many clues suggestive of CRC diagnosis. Future interventions are needed to reduce the process breakdowns identified.

Objective

The epidemiology and outcomes of Multiple Organ Dysfunction Syndrome (MODS) are incompletely characterized in the pediatric population due to small sample size and conflicting diagnoses of organ failure. We sought to describe the epidemiology and outcomes of early MODS in a large clinical database of PICU patients based on consensus definitions of organ failure.

Design

Retrospective analysis of a contemporaneously collected clinical PICU database.

Setting

VPICU Performance System (VPS) database patient admissions from 1/2004-12/2005 for 35 US children’s hospitals.

Patients

We evaluated 63,285 consecutive PICU admissions from 1/2004-12/2005 in the VPS database. We excluded patients <1 month or >18 years of age, and hospitals with >10% missing values for MODS variables. We identified day 1 MODS by International Pediatric Sepsis Consensus Conference (IPSCC) criteria with day 1 laboratory and vital sign values. We evaluated functional status using Pediatric Overall Performance Category (POPC) and Pediatric Cerebral Performance Category (PCPC) scores from PICU admission and discharge.

Interventions

Analysis: Student’s t-test, Χ2, Mann-Whitney rank sum, Kruskal-Wallis, linear and logistic regression.

Measurements and Main Results

We analyzed 44,693 admissions from 28 hospitals meeting inclusion criteria. Overall PICU mortality was 2.8%. We identified day 1 MODS in 18.6% of admissions. Patients with day 1 MODS had higher mortality (10.0% v. 1.2%, p<0.001), longer PICU length of stay (3.6 v. 1.3 days, p<0.001) and larger change from baseline POPC and PCPC scores at time of PICU discharge (p<0.001). Infants had the highest incidence of day 1 MODS (25.2% vs. 16.5%, p<0.001) compared to other age groups.

Conclusions

Using the largest clinical dataset to date and consensus definitions for organ failure, we found that children with MODS present on day one of ICU admission have worse functional outcomes, higher mortality, and longer PICU length of stay than children who do not have MODS on day one. Infants are disproportionally affected by MODS.

Background

Health care utilization and costs among US veterans with chronic obstructive pulmonary disease (COPD) were compared with those in veterans without COPD.

Methods

A cohort of veterans with COPD was matched for age, sex, race, and index fiscal year to a cohort of veterans without COPD (controls) using data from the Veterans Integrated Service Network (VISN) 16 from 10/1/1997 to 9/30/2004. Annual total and respiratory-related health care service utilization, costs of care, comorbidities, and respiratory medication use at the time of diagnosis were assessed.

Results

A total of 59,906 patients with COPD were identified for a 7-year period prevalence of 8.2%, or 82 per 1000 population. Patients with COPD compared with controls had significantly higher all-cause and respiratory-related inpatient and outpatient health care utilization for every parameter examined including mean numbers of physician encounters, other outpatient encounters, emergency room visits, acute inpatient discharges, total bed days of care, and percentage of patients with any emergency room visits or any acute inpatient discharge. Patients with COPD had statistically significantly higher mean outpatient, inpatient, pharmacy, and total costs than the control group. The mean Charlson comorbidity index in patients with COPD was 1 point higher than in controls (2.85 versus 1.84, P < 0.001). 60% of COPD patients were prescribed medications recommended in treatment guidelines at diagnosis.

Conclusion

Veterans with COPD compared with those without COPD suffer a tremendous disease burden manifested by higher rates of all-cause and respiratory-related health care utilization and costs and a high prevalence of comorbidities. Furthermore, COPD patients do not receive appropriate treatment for their disease on diagnosis.

Objectives

This study aims at comparing prescription patterns between young adults and elderly with bipolar disorder who achieved a recovery status during the Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD).

Design

STEP-BD is a multicenter National Institute of Mental Health (NIMH)-funded project designed to evaluate the longitudinal outcome of patients with bipolar disorder. The STEP-BD study involved extensive assessment across multiple domains including demographic data, diagnosis, symptom severity, treatment and clinical status. Patients achieved “recovered” status when they experienced eight consecutive weeks without significant symptoms.

Participants

we analyzed data of all subjects who achieved a recovered status at least once in their participation.

Measurements

We compared treatment regimes and doses between young participants to middle age (n=3,364), 20 to 59 years old, and older participants 60 and above (n=246).

Results

Of the 3,615 STEP-BD participants who had a lifetime diagnosis of bipolar subtypes I or II, 67.6% (n=2442) achieved a recovered status during their participation. 78.5% (n=193) of older patients recovered compared to 66.8% of the younger cohort. On average, participants who reached a recovered status took 2.05 medications with no difference between age groups. Lithium was prescribed to 37.8% of younger patients compared to only 29.5% of older participants. The mean dosages taken by younger and older patients differed significantly only for lithium, valproate and risperidone with elderly individuals prescribed lower daily dosages. Significant reduction in lithium dosing was observed among individuals age 50 and older and among individuals 60 and older for valproate. Although valproate was more often prescribed, 42.1% of recovered bipolar elder achieved recovery with lithium alone compared to only 21.3% of the younger cohort.

Conclusion

This data shows recovery is achievable in the elderly though more than one medication is often needed regardless of age.

Background

Recent evidence indicates increased access to and use of Internet and non-healthcare-related email by older patients. Because email adoption could potentially reduce some of the disparities faced by this age group, there is a need to understand factors determining older patients’ enthusiasm to use email to communicate with their physicians. Electronic mail (email) represents a means of communication that, coupled with face-to-face communication, could enhance quality of care for older patients.

Objective

Test a model to determine factors associated with older patients’ enthusiasm to use email to communicate with their physicians.

Methods

We conducted a secondary data analysis of survey data collected in 2003 for two large, longitudinal, randomized controlled trials. Logistic-regression models were used to model the dichotomous outcome of patient enthusiasm for using email to communicate with their physicians. Explanatory variables included demographic characteristics, health status, use of email with people other than their physician, characteristics of the physician-patient relationship, and physician enthusiasm to use email with patients.

Results

Participants included a pooled sample of 4059 patients over 65 years of age and their respective physicians (n = 181) from community-based practices in Southern California. Although only 52 (1.3%) patient respondents reported that they communicated with their physician by email, about half (49.3%) expressed enthusiasm about the possibility of using it. Odds of being enthusiastic decreased with increased age (by 0.97 for each year over 66) but were significantly higher in African Americans (OR = 2.1, CI = 1.42 - 3.06), Hispanics (OR = 1.6, CI = 1.26 - 2.14) and men (OR = 1.3, CI = 1.1 - 1.5).

A perception of better communication skills of their physician, lower quality of interaction with physician in traditional face-to-face encounters, and physician enthusiasm to use email with patients were significantly associated with an enthusiasm to use email. Patients who did not use email at all were less enthusiastic compared to those who used email for other reasons. Half of the physician respondents were not enthusiastic about communicating with patients using email.

Conclusions

Despite perceived barriers such as limited access to the Internet, older patients seem to want to use email to communicate with their physicians.

Background

We investigated the association of process of care measures with adverse limb and systemic events in patients with peripheral arterial disease (PAD).

Methods

We conducted a retrospective cohort study of patients with PAD, as defined by an ankle-brachial index (ABI) <0.9. The index date was defined as the date, during 1995 to 1998, when the patient was seen in the Michael E. DeBakey VA Medical Center noninvasive vascular laboratory and found to have PAD. We conducted a chart review for process of care variables starting 3 years before the index date and ending at the time of the first event or the final visit (December 31, 2001), whichever occurred first. We examined the association between PAD process of care measures, including risk factor control, and prescribing of medication, with time of the patient’s first major limb event or death.

Results

Of the 796 patients (mean age, 65 ± 9.9 years), 230 (28.9% experienced an adverse limb event (136 lower-extremity bypass, 94 lower-extremity amputation), and 354 (44.5%) died. Of the patients who died, 247 died without a preceding limb event. Glucose control was protective against death or a limb event with a hazard ratio (HR) of 0.74 (95% confidence limits [CL] 0.60, 0.91, P = 0.004). African Americans were at 2.8 (95% CL 1.7, 4.5) times the risk of Whites or Hispanics for an adverse limb event. However, this risk was no longer significant if their glucose was controlled. For process measures, the dispensing of PAD specific medication (HR 1.4, 95% CL 1.1, 1.7) was associated an increased risk for an adverse outcome.

Conclusions

Our data suggest that glucose control is key to reducing the risk for adverse outcomes, particularly limb events in African Americans. Certain process of care measures, as markers of disease severity and disease management, are associated with poor outcomes in patients with PAD. Further work is needed to determine the role of early disease intervention to reduce poor outcomes in patients with PAD.

Background

Despite the availability of evidence-based psychotherapies for depression and anxiety, they are underused in non-mental health specialty settings such as primary care. Hybrid effectiveness-implementation designs have the potential to evaluate clinical and implementation outcomes of evidence-based psychotherapies to improve their translation into routine clinical care practices.

Methods

This protocol article discusses the study methodology and implementation strategies employed in an ongoing, hybrid, type 2 randomized controlled trial with two primary aims: (1) to determine whether a brief, manualized cognitive behavioral therapy administered by Veterans Affairs Primary Care Mental Health Integration program clinicians is effective in treating depression and anxiety in a sample of medically ill (chronic cardiopulmonary diseases) primary care patients and (2) to examine the acceptability, feasibility, and preliminary outcomes of a focused implementation strategy on improving adoption and fidelity of brief cognitive behavioral therapy at two Primary Care-Mental Health Integration clinics. The study uses a hybrid type 2 effectiveness/implementation design to simultaneously test clinical effectiveness and to collect pilot data on a multifaceted implementation strategy that includes an online training program, audit and feedback of session content, and internal and external facilitation. Additionally, the study engages the participation of an advisory council consisting of stakeholders from Primary Care-Mental Health Integration, as well as regional and national mental health leaders within the Veterans Administration. It targets recruitment of 320 participants randomized to brief cognitive behavioral therapy (n = 200) or usual care (n = 120). Both effectiveness and implementation outcomes are being assessed using mixed methods, including quantitative evaluation (e.g., intent-to-treat analyses across multiple time points) and qualitative methods (e.g., focus interviews and surveys from patients and providers). Patient-effectiveness outcomes include measures of depression, anxiety, and physical health functioning using blinded independent evaluators. Implementation outcomes include patient engagement and adherence and clinician brief cognitive behavioral therapy adoption and fidelity.

Conclusions

Hybrid designs are needed to advance clinical effectiveness and implementation knowledge to improve healthcare practices. The current article describes the rationale and challenges associated with the use of a hybrid design for the study of brief cognitive behavioral therapy in primary care. Although trade-offs exist between scientific control and external validity, hybrid designs are part of an emerging approach that has the potential to rapidly advance both science and practice.

Trial registration

NCT01149772 at http://www.clinicaltrials.gov/ct2/show/NCT01149772