Evaluation of pulmonary function and polysomnography in obese children and adolescents

Marcus, Carole L.; Curtis, Shelley; Koerner, Celide Barnes; Joffe, Alain; Serwint, Janet R.; Loughlin, Gerald M.

doi:10.1002/(sici)1099-0496(199603)21:3<176::aid-ppul5>3.3.co;2-b

Cited by 60 publications

(85 citation statements)

References 4 publications

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“…However, studies on children have found conflicting results. Lung compliance, vital capacity, and residual volume in obese children are similar to those of non-obese children in the majority of the studies (23)(24)(25)(26) have confirmed reduced functional residual capacity and static lung volumes (12)(13)(14). The impact of obesity on respiratory functions in overweight, obese and morbidly obese children has not yet been fully determined.…”

Section: Discussionmentioning

confidence: 85%

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The Effect of Obesity Degree on Childhood Pulmonary Function Tests

Torun¹,

Çakır²,

Özgüç³

et al. 2014

Balkan Med J

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Background:Childhood obesity has become a global epidemic. It is related to several chronic diseases such as essential hypertension, type 2 diabetes mellitus, and renal disease. The relationship between the degree of obesity and lung functions is well defined in adults, but limited information is available about the childhood period. Aims: This study aims to determine the impact of the degree of obesity on the pulmonary functions of school children and adolescents. Study Design: Cross sectional study. Methods: Included in the study were a total of 170 school children and adolescents (9-17 years old) referred to our paediatric outpatient clinic. Of these subjects, 42 were lean and non-obese (BMI % <85), 30 subjects were overweight (BMI % ˃85, <95), 34 subjects were obese (BMI % ˃95, <97), and 64 subjects were morbidly obese (BMI % ˃97). Anthropometric measurements were taken and spirometry was performed on all subjects. Forced vital capacity (FVC), forced expiratory volume in 1 second (FEV 1 ), forced vital capacity ) and peak expiratory flow (PEF) were used to measure the ventilatory functions for all the subjects. Results: The groups showed no significant differences in age or gender. Despite no statistically significant differences in FEV 1 , FVC, or FEV 1 /FVC, there were significant reductions in PEF (p<0.001) and FEV 25-75 (p<0.001) in the overweight, obese and morbidly obese subjects, when compared with those who were non-obese. Conclusion: Overweight, obese and morbidly obese children have no obstructive abnormalities compared with healthy lean subjects. (Balkan Med J 2014;31:235-8).

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Section: Discussionmentioning

confidence: 85%

“…Inselman et al (13) found a reduced diffusion capacity and ventilatory muscle endurance among obese children. Marcus et al (26) found both restrictive and obstructive abnormalities on pulmonary function tests in obese children. Mallory et al (12) reported that obstructive abnormalities were the main problem in obese children.…”

Section: Discussionmentioning

confidence: 98%

The Effect of Obesity Degree on Childhood Pulmonary Function Tests

Torun¹,

Çakır²,

Özgüç³

et al. 2014

Balkan Med J

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“…22 In a small study of 22 obese children, 46% had abnormal polysomnograms and there was a positive correlation between degree of obesity and apnoea index. 23 Management of OSA in the obese child N Weight loss is the most effective long term treatment, but the least likely to take place. N Adenotonsillar hypertrophy is associated with OSA in both obese and non-obese patients.…”

Section: Obstructive Sleep Apnoeamentioning

confidence: 99%

Obesity and the pulmonologist

Deane

Thomson²

2005

Archives of Disease in Childhood

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Obese children have more respiratory symptoms than their normal weight peers and respiratory related pathology increases with increasing weight. Some will need specialist assessment (box 1). Obesity produces mechanical effects on respiratory system performance. Breathlessness, wheeze, and cough are not related to increased airway responsiveness and may respond more to weight loss than bronchodilator therapy. A significant number of obese children have signs and symptoms of obstructive sleep apnoea largely related to the effect of obesity on upper airway dimensions. It seems likely that unless action is taken soon, increasing numbers of children will experience preventable respiratory morbidity as a result of nutritional obesity.

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“…[3][4][5][6][7] Similar data in the paediatric population are however, limited and conflicting. Marcus and colleagues, 8 in their study of 17 patients, found only two to have abnormal lung function. One had restrictive deficit and the other obstructive abnormality.…”

mentioning

confidence: 97%

The effects of obesity on pulmonary function

2003

Archives of Disease in Childhood

200

138

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Aims: (1) To determine the predominant pulmonary function abnormality in our population of obese children; and (2) to assess the correlation between the severity of lung function impairment and the degree of obesity as assessed by dual energy x ray absorptiometry (DEXA). Methods: Sixty four obese patients underwent physical examination, standardised pulmonary function tests (spirometry, lung volumes, and single breath diffusion capacity for carbon monoxide), and DEXA scan measurements. The trunk and subtotal (total − head) body fat mass were used as surrogate index of body adiposity. Results: Sixteen girls and 48 boys with median age and body mass index (BMI) of 12 years (interquartile range (IQR): 10-14) and 30.1 kg/m 2 (IQR: 27.2-32.8) respectively were studied. None of the patients had clinical evidence of cardiopulmonary disease. Reduction in functional residual capacity (median FRC 93% predicted, IQR: 68.5-116.5%) and impairment of diffusion capacity (median DLco 83.5% predicted, IQR: 70.0-100.7%) were the most common abnormalities in our cohort, being observed in 30 (46%) and 21 (33%) patients respectively. Obstructive ventilatory impairment was found in three patients. There was significant negative correlation between the degree of reduction of FRC but not DLco with DEXA scan measurements, but such a relation was not found when BMI was used as the indicator of obesity. Conclusion: Reduction in FRC and diffusion impairment were the commonest abnormalities found in our cohort of obese patients. Reduction in static lung volume was correlated with the degree of obesity.

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Evaluation of pulmonary function and polysomnography in obese children and adolescents

Cited by 60 publications

References 4 publications

The Effect of Obesity Degree on Childhood Pulmonary Function Tests

The Effect of Obesity Degree on Childhood Pulmonary Function Tests

Obesity and the pulmonologist

The effects of obesity on pulmonary function

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