Impact of Weight Loss Following Bariatric Surgery on Pulmonary Function in Patients With Morbid Obesity
Increase in body mass index (BMI)is associated with a decrease in expiratory flows.Obesity is also associated with an increased prevalence of asthma.Consequences of obesity on respiratory function and on bronchial responsiveness are still to be documented.
This study aims to evaluate, before and after surgery, the impact of a bariatric surgery (biliopancreatic diversion with duodenal switch)on respiratory function in patients with morbid obesity .
Our hypothesis is that weight loss following bariatric surgery will induce significant improvements in pulmonary function and airway responsiveness, and, as a consequence, a reduction in respiratory symptoms,these changes being correlated with a reduction in systemic markers of inflammation. Maintenance of weight loss after one year will permit the persistence of these improvements
調査の概要
詳細な説明
Patients will be evaluated before the surgery (time zero), 6 months and one year after their surgery. A control group of patients on a waiting list for bariatric surgery will be evaluated at time zero and after 6 months and one year.
At each visit,patients will:
- fill a standardized respiratory questionnaire and a questionnaire on sleep apnea; questionnaires on asthma control will be completed by patients with asthma.
- have a spirometry, pulmonary volumes measures by body plethysmography and methacholine inhalation test with evaluation of symptoms perception.
- an induced sputum will be performed.
- A blood sample will be drawn to evaluate inflammation and measure C-reactive protein concentration in plasma.
- An allergy skin prick test will be done at time zero.
研究の種類
入学 (実際)
連絡先と場所
研究場所
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Quebec
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Québec、Quebec、カナダ、G1V 4G5
- Centre de Recherche, Hôpital Laval
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Body mass index >or= 35 kg/m2
- Non-smokers or ex-smokers (<10 packs-year)
Exclusion Criteria:
- Previous bariatric surgery
- previous vagotomy
- no compliance to visits
- subjects unable to provide an informed consent or to understand the questions included in questionnaires
- Patients with cardiac pacemaker
- hemodynamically significant valvulopathy
研究計画
研究はどのように設計されていますか？
デザインの詳細
コホートと介入
グループ/コホート |
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bariatric surgery
patients with morbid obesity undergoing a bariatric surgery
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No bariatric surgery
patients with morbid obesity on a waiting list for a bariatric surgery but who will have their surgery in more than one year.
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協力者と研究者
スポンサー
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。