We studied the differential response to inhaled salbutamol and ipratropium of 29 asthmatic patients, 18 intrinsic, 11 extrinsic, using peak expiratory flow rate (PEFR), forced expiratory volume in one second (FEV1), and forced vital capacity (FVC). Thirty minutes after a theoretically maximally bronchodilating dose of salbutamol (400 microgram) or ipratropium (80 microgram), second doses freque...

BACKGROUND Despite the recommendation of the Department of Health that patients with asthma receive annual vaccination against influenza, uptake remains unsatisfactory with many patients suspicious that vaccination is harmful. AIM To examine the effect of influenza vaccination on asthmatic patients typical of a general practice setting. METHOD A multicentre study with 56 patients participat...

The difference of bronchial lability that is bronchial hyper-reactivity between normal men and women is studied by standard exercise using Harvard steps. Preclinical medical students (M=30, F=30) with mean age of 18.64 years were assessed. Students included were nonsmokers & with no personal history of allergy or any respiratory disease. Parameters compared were age, sex, height, weight & PFTs....

INTRODUCTION The effects of obesity on pulmonary functions have not been addressed previously among Saudi population. We aim to study the effects of obesity on spirometry tests among healthy non-smoking adults. METHODS A cross sectional study conducted among volunteers healthy non-smoking adults Subjects. We divided the subjects into two groups according to their BMI. The first group consiste...

A review of the characteristics of hydrogen as an inert gas for use in diving is presented, with special emphasis on the extention of the respiratory limitation in diving by use of this least dense of all gases. Forced vital capacity (FVC), forced expiratory volume in one second (FEVi), forced expiratory volume in two seconds (FEV2). peak expiratory flow rate (PEFR), peak inspiratory flow rate ...