The Impact of Various Anthropometric Measurements of Obesity on Pulmonary Function in Candidates for Surgery

Wei, Yufeng; Wu, Huey-Dong; Chang, Chi‐Yang; Huang, Chih‐Kun; Tai, Chi‐Ming; Hung, Chao‐Ming; Tseng, Wei‐Kung; Wu, Chau-Chung

doi:10.1007/s11695-009-9961-0

Cited by 27 publications

(26 citation statements)

References 42 publications

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“…Waist circumference allows a practical evaluation of central adiposity, which is best correlated with visceral fat, and its association with BMI is an important marker for predicting the risk of systemic arterial hypertension, dyslipidemia and metabolic syndrome [26]. The patients in the present study exhibited a significant reduction of both BMI and waist circumference at three months following bariatric surgery.…”

Section: Discussionmentioning

confidence: 71%

Obstructive sleep apnea and pulmonary function in patients with severe obesity before and after bariatric surgery: a randomized clinical trial

Aguiar

Freitas

Santos

et al. 2014

Multidiscip Respir Med

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BackgroundThe increasing prevalence of obesity in both developed and developing countries is one of the most serious public health problems and has led to a global epidemic. Obesity is one of the greatest risk factors of obstructive sleep apnea (OSA), which is found in 60 to 70% of obese patients mainly due to the buildup of fat tissue in the upper portion of the thorax and neck. The aim of the present randomized clinical trial is to assess daytime sleepiness, sleep architecture and pulmonary function in patients with severe obesity before and after bariatric surgery.MethodsThis randomized, controlled trial, was designed, conducted, and reported in accordance with the standards of The CONSORT (Consolidated Standards of Reporting Trials) Statement. Patients were divided into a bariatric surgery group and control group. The clinical evaluation was performed at the Sleep Laboratory of the Nove de JulhoUniversity (Sao Paulo, Brazil) and consisted of the collection of clinical data, weight, height, body mass index (BMI), measurements of neck and abdomen circumferences, spirometry, maximum ventilatory pressure measurements, standard overnight polysomnography (PSG) and the administration of the Berlin Questionnaire and Epworth Sleepiness Scale.ResultsFifty-two patients participated in the present study and performed PSG. Out of these, 16 underwent bariatric surgery. After surgery, mean BMI decreased from 48.15 ± 8.58 to 36.91 ± 6.67 Kg/m2. Significant differences were found between the preoperative and postoperative periods regarding neck (p < 0.001) and waist circumference (p < 0.001), maximum inspiratory pressure (p = 0.002 and p = 0.004) and maximum expiratory pressure (p = 0.001 and p = 0.002) for women and men, respectively, as well as sleep stage N3 (p < 0.001), REM sleep (p = 0.049) and the apnea-hypopnea index (p = 0.008).ConclusionsBariatric surgery effectively reduces neck and waist circumference, increases maximum ventilatory pressures, enhances sleep architecture and reduces respiratory sleep disorders, specifically obstructive sleep apnea, in patients with severe obesity.Trial registrationThe protocol for this study was registered with the World Health Organization (Universal Trial Number: U1111-1121-8873) and Brazilian Registry of Clinical Trials – ReBEC (RBR-9k9hhv).

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Section: Discussionmentioning

confidence: 71%

Obstructive sleep apnea and pulmonary function in patients with severe obesity before and after bariatric surgery: a randomized clinical trial

Aguiar

Freitas

Santos

et al. 2014

Multidiscip Respir Med

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“…Thus, obesity diminishes exercise capacity by its adverse effects on respiratory mechanics, increases resistance within the respiratory system, diminishes respiratory muscle function and lung volume, and increases the work and energy cost of breathing 29 . Similarly, infections after abdominal surgery have been reported to occur more frequently in overweight and obese patients 14,15,30 .…”

Section: Discussionmentioning

confidence: 99%

Safety of hepatic resection in overweight and obese patients with cirrhosis

Cucchetti

Cescon

Ercolani

et al. 2011

British Journal of Surgery

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“…A recent systematic review and meta-analysis of the impact of adiposity distribution has clearly shown a significant inverse relationship between waist circumference (WC) and pulmonary function, with a greater effect size in men [13]. Furthermore, waist-to-height ratio (WHtR) and other indexes of fat distribution have been suggested to better identify high-risk subjects of different pathologies [14, 15]. WHtR has the benefit of adjusting WC according to height, a measurement that remains quite unchanged in adults; this reinforces the importance of changes in WC measurement.…”

Section: Introductionmentioning

confidence: 99%

Adiposity markers and lung function in smokers: a cross-sectional study in a Mediterranean population

et al. 2016

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BackgroundThe aim of this study was to assess the association of key adiposity markers with lung function in smokers without respiratory disease in a Mediterranean population.MethodsWe performed a cross-sectional study with baseline data from a representative sample of the ESPITAP study in Spain. Participants were 738 smokers (52.3% men) without respiratory disease, aged 35 to 70, selected from 12 primary health care centres. We assessed weight, height, body mass index (BMI), waist circumference (WC) and waist-to-height ratio (WHtR). The pulmonary functional parameters were forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1) and FEV1/FVC ratio.ResultsIn this cohort of smokers, 22.2% of individuals had central obesity. FVC% was inversely associated with all anthropometric measures (BMI, WC and WHtR) in the overall population and in men; in women, only BMI was associated with FVC%. FEV1% was inversely associated to BMI and WC in the overall population, and to all anthropometric measures in men. Furthermore, both BMI and obesity were positively associated with FEV1/FVC ratio overall and when stratified by sex; this suggests a restrictive pattern explained by the altered ventilator mechanics experienced by people with obesity.ConclusionIn a Mediterranean population of smokers without respiratory symptoms, abdominal obesity, evaluated not only by BMI and WC but also WHtR, is inversely associated with lung function. Fat distribution appears more strongly related to pulmonary function parameters in men than in women. In smokers with high values for WC, WHtR and BMI, assessment of lung function is recommended.Trial registrationCurrent Controlled Trials NCT01194596. Registered 2 September 2010.

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The Impact of Various Anthropometric Measurements of Obesity on Pulmonary Function in Candidates for Surgery

Cited by 27 publications

References 42 publications

Obstructive sleep apnea and pulmonary function in patients with severe obesity before and after bariatric surgery: a randomized clinical trial

Obstructive sleep apnea and pulmonary function in patients with severe obesity before and after bariatric surgery: a randomized clinical trial

Safety of hepatic resection in overweight and obese patients with cirrhosis

Adiposity markers and lung function in smokers: a cross-sectional study in a Mediterranean population

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