New concepts for expressing forced expiratory volume in 1 s: conclusions need nuances

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

New concepts for expressing forced expiratory volume in 1 s: conclusions need nuances.

We read with interest the recent publication by MILLER and PEDERSEN [1] on determining the best way of expressing lung function impairment for prediction of mortality. The authors ranked the methods of expressing forced expiratory volume in 1 s (FEV1). It was concluded that the FEV1 quotient (Q) was the best predictor. We believe that this outcome is in need for some nuances. This ranking is, i...

متن کامل

New concepts for expressing forced expiratory volume in 1 s arising from survival analysis.

Spirometric lung function is partly determined by sex, age and height (Ht). Commonly, lung function is expressed as a percentage of the predicted value (PP) in order to account for these effects. Since the PP method retains sex, age and Ht bias, forced expiratory volume in 1 s (FEV(1)) standardised by powers of Ht and by a new sex-specific lower limit (FEV(1) quotient (FEV(1)Q)) were investigat...

متن کامل

Forced expiratory volume before and after isoprenaline.

Improvement in the results of tests of ventilatory function in response to a bronchodilator drug, given by inhalation or by injection, is now widely used to indicate the presence of reversible " bronchospasm" (Rossier, 1949; Gilson and Hugh-Jones, 1955; Kennedy and Thursby-Pelham, 1956). Frequent repetition of some of these tests in a small series of patients has revealed an interesting relatio...

متن کامل

Precipitous fall of the forced expiratory volume.

Patients attending hospital on account of chronic airways obstruction usually present with breathlessness. Most, at this stage, are found to have a severe reduction of the forced expiratory volume (F.E.V.), but little is known about the nature of the deterioration in ventilatory function in earlier phases of the illness. Two patients are described to show how precipitous this deterioration may ...

متن کامل

Variability of relaxed expiratory volume and forced inspiratory volume.

Measurements of relaxed expiratory volume in one second (REV1.0) and forced inspiratory volume in one second (FIV1.0) were made on 50 subjects on two occasions to know the variability of these procedures in the individual subject. The mean coefficients of variation for REV1.0 and FIV1.0 were 6740' and 892%, respectively. The 95% confidence limit of difference between highest readings obtained o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: European Respiratory Journal

سال: 2010

ISSN: 0903-1936,1399-3003

DOI: 10.1183/09031936.00064710