Analysis of cardiovascular system responses to forced vital capacity in COPD

Analysis of cardiovascular system responses to forced vital capacity in COPD.

BACKGROUND The forced vital capacity (FVC) test is routinely performed to evaluate pulmonary function in patients with chronic obstructive pulmonary disease (COPD). However, the influence of the FVC maneuver on the cardiovascular system of patients with COPD is poorly understood. OBJECTIVES To analyze the behavior of heart rate (HR), blood pressure (BP) and heart rate variability (HRV) during...

Analysis of cardiovascular system responses to forced vital capacity in COPD Análise das respostas do sistema cardiovascular ao teste de capacidade vital forçada na DPOC

Background: The forced vital capacity (FVC) test is routinely performed to evaluate pulmonary function in patients with chronic obstructive pulmonary disease (COPD). However, the influence of the FVC maneuver on the cardiovascular system of patients with COPD is poorly understood. Objectives: To analyze the behavior of heart rate (HR), blood pressure (BP) and heart rate variability (HRV) during...

Forced Vital Capacity (FVC) and Forced Vital Capacity in 1 Second (FEV1) of Apparently Healthy Non-smoker Adult Obese

Should forced expiratory volume in six seconds replace forced vital capacity to detect airway obstruction?

It has been suggested that forced expiratory volume in six seconds (FEV(6)) should be substituted for forced vital capacity (FVC) to measure fractions of timed expired volume for airflow obstruction detection. The present authors hypothesised that this recommendation might be questionable because flow after 6 s of forced expiration from more diseased lung units with the longest time constants w...

Is forced expiratory volume in six seconds a valid alternative to forced vital capacity?

We have read with interest the article by HANSEN et al. [1] in a recent issue of the European Respiratory Journal, stating that the use of forced expiratory volume in six seconds (FEV6) reduces the sensitivity of obstructive lung disease detection. Their study population of 3,515 current smokers, with a 17.5% prevalence of obstruction, found a sensitivity of only 76.8% and a specificity of 98.2...