Exertional dyspnoea in patients with pectus excavatum
漏斗胸病人的運動呼吸困難
Paolo T. Pianosia
aPaolo T Pianosi MD is in the Department of Pediatrics, Divisions of Pediatric Allergy Immunology and Pulmonology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
Available online 4 December 2009.
摘要:
大多數漏斗胸病人的運動耐受性及運動呼吸困難在手術後有改善. 而這些症狀改善的原因被推論為胸腔容積變大及壓迫的緩解. 但是呼吸肌的運動卻從未被認為是症狀改善的原因之一. 本文提出以一項新發展的方法可用來評估運動時之呼吸限制, 畫出在運動時最大通氣流速-容積的方法, 來解釋手術後改善的現象,
Abstract
Most patients with pectus excavatum report better exercise tolerance and less exertional dyspnoea following surgical repair of their chest wall deformity. The reason(s) for this symptomatic improvement remain speculative but include a reversal of deconditioning and improved stroke volume. Improved function or efficiency of the respiratory muscle pump has never been assessed as a potential reason for reduced dyspnoea. An emerging approach to assessing ventilatory constraint during exercise is to plot the tidal flow–volume loops obtained during exercise within the maximal volitional flow–volume envelope obtained at rest. This paper summarises a review of pulmonary function in patients with pectus excavatum before and after surgery, and then illustrates how this newer technique can be applied in order to determine the ventilatory limitation to exercise in this population.
Keywords: dyspnoea; exercise; pectus excavatum; ventilation
漏斗胸病人的運動呼吸困難
Paolo T. Pianosia
aPaolo T Pianosi MD is in the Department of Pediatrics, Divisions of Pediatric Allergy Immunology and Pulmonology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
Available online 4 December 2009.
摘要:
大多數漏斗胸病人的運動耐受性及運動呼吸困難在手術後有改善. 而這些症狀改善的原因被推論為胸腔容積變大及壓迫的緩解. 但是呼吸肌的運動卻從未被認為是症狀改善的原因之一. 本文提出以一項新發展的方法可用來評估運動時之呼吸限制, 畫出在運動時最大通氣流速-容積的方法, 來解釋手術後改善的現象,
Abstract
Most patients with pectus excavatum report better exercise tolerance and less exertional dyspnoea following surgical repair of their chest wall deformity. The reason(s) for this symptomatic improvement remain speculative but include a reversal of deconditioning and improved stroke volume. Improved function or efficiency of the respiratory muscle pump has never been assessed as a potential reason for reduced dyspnoea. An emerging approach to assessing ventilatory constraint during exercise is to plot the tidal flow–volume loops obtained during exercise within the maximal volitional flow–volume envelope obtained at rest. This paper summarises a review of pulmonary function in patients with pectus excavatum before and after surgery, and then illustrates how this newer technique can be applied in order to determine the ventilatory limitation to exercise in this population.
Keywords: dyspnoea; exercise; pectus excavatum; ventilation
全站熱搜
留言列表
{{ article.title }}