Dynamic hyperinflation on exertion: much remains unknown.
نویسندگان
چکیده
منابع مشابه
When small is better: volume reduction in severe emphysema.
Severe emphysema radically diminishes quality of life. The disease is a result of destruction of lung parenchyma and is most commonly associated with cigarette smoke exposure or the congenital absence of α1-antitrypsin. The elastic fibres of the lung, which in a healthy state strive to retract the lungs, are particularly affected. The inward force determined by these fibres is balanced by the c...
متن کاملPursed-lips breathing reduces dynamic hyperinflation induced by activities of daily living test in patients with chronic obstructive pulmonary disease: A randomized cross-over study.
BACKGROUND Dynamic hyperinflation leads to dyspnoea and consequent limitations in functional capacity in chronic obstructive pulmonary disease. It has been shown that the response to pursed-lips breathing in terms of dynamic hyperinflation and lower-limb exercise capacity is variable, and its effects on activities of daily living are unknown. This study aimed to evaluate the effect of pursed-li...
متن کاملThe clinical relevance of the emphysema-hyperinflated phenotype in COPD
The classification of chronic pulmonary obstructive disease (COPD) into clinical and pathophysiological subsets is not new, but increasing data is available on the relation of these different phenotypes to clinically meaningful outcomes. This review focuses on the “emphysema-hyperinflation” (EH) phenotype, which is characterised by a prominent loss of lung elastic recoil and hyperinflation burd...
متن کاملExercise intolerance in severe COPD: A review of assessment and treatment
Exercise intolerance is common in persons with chronic obstructive pulmonary disease and can result from multiple physiologic factors, including dynamic hyperinflation, gas exchange abnormalities, and pulmonary hypertension. In the initial assessment, keep in mind that many patients underestimate the degree of their impairment. The 6-minute walk test is very useful in assessing the degree of ex...
متن کاملSurgical procedures in emphysema: any impact on dynamic hyperinflation?
Bullectomy, lung volume reduction surgery and transplantation can palliate dyspnoea in emphysema. The available data suggest that their mode of action, at least with regard to pulmonary mechanics, includes beneficial effects on dynamic hyperinflation. In single lung transplant recipients, this may be asymmetric, causing native lung hyperinflation.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia
دوره 38 1 شماره
صفحات -
تاریخ انتشار 2012