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Biomedical subjects

S B Carr

Publications and source records attributed to S B Carr.

16 recordsLinked to original sources
PubMed2006

A comparison of the prevalence of urinary incontinence in girls with cystic fibrosis, asthma, and healthy controls.

Urinary incontinence (UI) is recognized as a significant problem in adult females with cystic fibrosis and can often have a marked impact on day-to-day activities. The prevalence and severity of UI in the pediatric cystic fibrosis (CF) female population is less clear and there are no comparative data with healthy children or children with other respiratory disorders. An anonymous self-completed semi-structured questionnaire was used to study the prevalence rates of UI in girls with CF aged between 11 and 17 and compared it to age-matched asthmatic and healthy girls. The prevalence of UI in girls with CF was significantly higher (17/51, 33%) than the asthmatic (4/25, 16%) and healthy girls (2/27, 7%) (P = 0.02). It may manifest as early as 11 years of age and is associated with increasing lung disease. Surprisingly it is perceived as a relatively minor problem in terms of the distress it causes. Pediatric CF clinics should be routinely addressing UI as a potential problem in all girls from the age of 11 years.

Adolescent↗
PubMed2005

Growth and lung function in Asian patients with cystic fibrosis.

BACKGROUND: The incidence of cystic fibrosis (CF) in Asians is rare. How these patients fare in terms of morbidity and mortality in the UK compared to their non-Asian peers is not well documented. AIMS: To retrospectively study annual reviews of 31 Asian CF patients from three London paediatric CF centres. METHODS: Disease severity was assessed by lung function, age at first infection with Pseudomonas aeruginosa, and body mass index (BMI). The Asian children were compared with 143 matched non-Asian patients with CF. Matching criteria used were same sex and treatment centre as the Asian index patient. In addition, the controls were matched so that their date of birth, date of diagnosis, and date at annual review were within 12 months of the index patient. RESULTS: There was no significant difference in age at diagnosis or age at annual review between the Asian and non-Asian children. Mean Z-scores for FEV1 and FVC were significantly lower for the Asian girls. There was no significant difference in Z-scores for BMI between the Asian children and their controls. Age at first isolation of Pseudomonas aeruginosa in Asian girls was significantly later than for their controls (8.3 years compared to 5.6 years for non-Asian girls). CONCLUSIONS: While the Asian boys' lung function seems comparable with that of their non-Asian peers, the Asian girls emerge as a potentially vulnerable group and more work is required to discover why this is the case.

Adolescent↗
PubMed2001

Airway function in infants newly diagnosed with cystic fibrosis.

The lung function of infants with cystic fibrosis is often reduced shortly after diagnosis. We measured the airway function of newly diagnosed infants to test whether this reduction is independent of clinically recognised lower respiratory illness. We compared the airway function of 33 infants with cystic fibrosis and 87 healthy controls after adjustment for sex, age, bodyweight and length, and exposure to maternal smoking. Airway function was significantly reduced in children with cystic fibrosis, even in those without clinically recognised previous lower respiratory illness. Our findings raise important questions about the onset and natural history of impaired airway function in infants with cystic fibrosis.

Case-Control Studies↗
PubMed1997

An evaluation of two aerosol delivery systems for rhDNase.

Increasingly, proteins are delivered to the respiratory tract as an aerosol, and clinical efficacy is dependent on optimal delivery of the protein in an intact form. The object of this study was to compare the in vivo and in vitro results of two aerosol delivery systems for the aerosolization of recombinant human deoxyribonuclease I (rhDNase) in patients with cystic fibrosis (CF). Patients with CF who were to be initiated on rhDNase were randomized either to the Hudson nebulizer and Pulmo-Aide compressor or to the Sidestream nebulizer driven by the CR50 air compressor. An in vitro study was performed in six sets of the two aerosol delivery systems. One hundred and seventy three patients were randomized in this open study, where rhDNase was administered for 7 days. Improvements in pulmonary function were observed in both groups following 1 week of therapy with rhDNase. Changes in the Sidestream/CR50 and Hudson/Pulmo-Aide groups, respectively, were: 16 and 11% for forced expiratory volume in one second (p=0.14); 12 and 10% for forced vital capacity (p=0.70); and 14 and 7% for forced expiratory flow at 25-75% of expiration (FEF(25-75)) (p=0.18). A greater proportion of patients in the Sidestream/CR50 group (58%) had a >10% response in FEF(25-75) compared to the Hudson/Pulmo-Aide group (42%; p=0.03). The Sidestream nebulizer had a faster nebulization rate (p<0.05), lower mass median diameter for the aerosol mass produced (p<0.001), higher percentage of particles in the respirable range (p<0.001) and greater respirable output (p<0.005), compared to the Hudson nebulizer. The Sidestream/CR50 combination is a quicker, more efficient system in vitro than the Hudson/Pulmo-Aide combination, whereas the in vivo study only suggested a difference. Clinically, the two systems have similar efficacy.

Adult↗
PubMed1995

Craniofacial abnormalities, agenesis of the corpus callosum, polysyndactyly and abnormal skin and gut development--the Curry Jones syndrome.

Five children are described with a striking, asymmetric facial appearance, craniosynostosis, preaxial polysyndactyly, agenesis of the corpus callosum and unusual skin with streaky areas of atrophy. The gut and mucous membranes are involved in two patients. This paper includes two patients described by Gorlin (1990) under the designation of the Curry Jones syndrome.

Abnormalities, Multiple↗
PubMed1980

Computerized feeding management systems for economic decision-making.

Linear programming has been useful in the formulation of feeding guidelines for lactating cows. The most economical rations can be fed. Newer feeding management systems are being developed as new nutritional findings permit greater refinement. This report describes the use of computerized feeding management systems in helping dairy farmers make sound economic decisions. Such procedures are useful to the feed industry, dairy consultants, and in development of extension education programs.

Animals↗