ABSTRACT
OBJECTIVES: Primary objectives were to analyze the prevalence of obstructive sleep apnea in (1) boys and girls, and (2) severe asthma versus moderate and mild cases. The authors hypothesized that girls and severe asthma would have a higher prevalence of obstructive sleep apnea. METHODS: Cross-sectional evaluation of asthmatic children attending a tertiary Pediatric Pulmonology clinic. The authors performed a history, physical examination, pulmonary function test, and home sleep apnea test. RESULTS: The authors studied 80 consecutive patients, 7-18 years old, mean age of 11.6 years (standard deviation 2.7), 51.3% female, and 18.5% obese. Pulmonary function tests were obtained from 80 volunteers, 45% with obstruction pattern. Home sleep apnea tests were available from 76 volunteers, with a mean obstructive respiratory index of 1.8 events/h. Obstructive sleep apnea was found in 49 volunteers (61.2%). The authors did not find associations between obstructive sleep apnea and sex or asthma severity. CONCLUSIONS: Obstructive sleep apnea was frequent among these asthmatic children. Sex and asthma severity were not risk factors. Considering the interrelationship of both diseases, it is worth keeping in mind the possibility of obstructive sleep apnea among children and teenagers with asthma.
Subject(s)
Asthma , Sleep Apnea Syndromes , Sleep Apnea, Obstructive , Male , Adolescent , Humans , Child , Female , Cross-Sectional Studies , Prevalence , Sleep Apnea, Obstructive/complications , Sleep Apnea, Obstructive/epidemiology , Sleep Apnea, Obstructive/diagnosis , Asthma/complications , Asthma/epidemiology , Risk FactorsABSTRACT
Abstract Objectives: Primary objectives were to analyze the prevalence of obstructive sleep apnea in (1) boys and girls, and (2) severe asthma versus moderate and mild cases. The authors hypothesized that girls and severe asthma would have a higher prevalence of obstructive sleep apnea. Methods: Cross-sectional evaluation of asthmatic children attending a tertiary Pediatric Pulmonology clinic. The authors performed a history, physical examination, pulmonary function test, and home sleep apnea test. Results: The authors studied 80 consecutive patients, 7-18 years old, mean age of 11.6 years (standard deviation 2.7), 51.3% female, and 18.5% obese. Pulmonary function tests were obtained from 80 volunteers, 45% with obstruction pattern. Home sleep apnea tests were available from 76 volunteers, with a mean obstructive respiratory index of 1.8 events/h. Obstructive sleep apnea was found in 49 volunteers (61.2%). The authors did not find associations between obstructive sleep apnea and sex or asthma severity. Conclusions: Obstructive sleep apnea was frequent among these asthmatic children. Sex and asthma severity were not risk factors. Considering the interrelationship of both diseases, it is worth keeping in mind the possibility of obstructive sleep apnea among children and teenagers with asthma.
ABSTRACT
BACKGROUND: Sleep disorders are common in patients with end-stage renal disease (ESRD) and are not improved by either conventional haemodialysis or peritoneal dialysis. Sleep-disordered breathing (SDB) is associated with cardiovascular disease and contributes to high mortality found in patients with ESRD. Cure of SDB after transplantation has been anecdotally reported. METHODS: Thirty-four non-diabetic patients with ESRD were studied, and clinical, laboratory test and polysomnographic features were determined and compared prior to and after transplantation and between groups with or without SDB, defined as having an apnoea-hypopnoea index (AHI) >or=5. RESULTS: An AHI >or=5 was present in nine patients (26.5%) prior to and seven (21%) after transplantation, and no significant reduction of mean AHI was found between study phases (5.3 +/- 7.3 vs 3.1 +/- 4.5; P > 0.05). Transplantation was associated with a significant improvement in sleep architecture. CONCLUSIONS: Kidney transplantation is associated with an improvement in sleep architecture, but does not cure SDB in all patients.
