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1.  The role of mean platelet volume predicting acute exacerbations of cystic fibrosis in children 
Annals of Thoracic Medicine  2011;6(4):227-230.
OBJECTIVE:
The aim of this study is to evaluate the relationship between acute exacerbations and the mean platelet volume (MPV) trend in children with cystic fibrosis (CF), to predict the exacerbations.
METHODS:
A total of 46 children with CF and 37 healthy children were enrolled in the study. White blood cell count (WBC), hemoglobin level, platelet count, mean platelet volume (MPV), and mean corpuscular volume (MCV) were retrospectively recorded.
RESULTS:
Our study population consisted of 25 (54.3%) males and 21 (45.7%) females with CF and 20 (54.0%) males and 17 (46.0%) females in the healthy control group. The mean age of the CF patients was 6.32 ± 4.9 years and that of the healthy subjects was 7.02 ± 3.15 years. In the acute exacerbation period of CF, the MPV values were lower and WBC and platelet counts were higher than those in the healthy controls (P = 0.00, P = 0.00, P = 0.00, respectively). Besides, in acute exacerbation, the MPV values were lower and the WBC count was higher than the values in the non-exacerbation period (P 0= 0.01, P = 0.00, respectively). In the non-exacerbation period MPV was lower and platelet count was higher when compared to healthy subjects (P = 0.02, P = 0.04, respectively).
CONCLUSION:
This study suggests that MPV might be used as a simple, cost effective, diagnostic, predictive indicator for platelet activation in pediatric CF patients related to chronic inflammation, which might be helpful to discriminate or estimate exacerbations.
doi:10.4103/1817-1737.84778
PMCID: PMC3183641  PMID: 21977069
Cystic fibrosis; inflammation; mean platelet volume; platelets
2.  A neglected problem of developing countries: Noncystic fibrosis bronchiectasis 
Annals of Thoracic Medicine  2009;4(1):21-24.
BACKGROUND:
Bronchiectasis has been defined as the abnormal and permanent dilation of the bronchi. It is still an important problem in many developing countries.
AIM:
The aim of this study was to identify the chacteristics and underlying etiology of children followed with the diagnosis of noncystic fibrosis bronchiectasis.
MATERIALS AND METHODS:
Children with bronchiectasis confirmed with high-resolution computed tomography were enrolled into the study. The data of the patients, including symptoms of the disease, age at the onset of symptoms, findings of physical examination, labrotory investigations performed in order to identify the etiology of bronchiectasis, etiology of bronchiectasis if found, radiologic findings and treatment modalities were noted.
RESULTS:
Sixty-six children between 1 and 17 years were included in the study retrospectively. Forty-four of them were males (66.7%) and 22 (33.3%) were females. The most common presenting symptoms were cough (100%) and sputum expectoration (50%). An underlying etiology was identified in 44 (66.7%) of the study subjects. The four most common underlying causes were found as infections (21.2%), asthma (16.7%), aspiration syndromes and/or gastroesophageal reflux disease (9.1%) and immunodeficiency syndromes (7.6%), respectively.
CONCLUSION:
Identifying an underlying etiology will have a significant effect on the management of noncystic fibrosis bronchiectasis. Defining the cause of bronchiectasis may also decrease its incidence, progression and complications.
doi:10.4103/1817-1737.44781
PMCID: PMC2700478  PMID: 19561918
Children; etiology; noncystic fibrosis bronchiectasis

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