Análisis del signo de Hoover en relación con parametros funcionales, radiologicos y de radio de curvatura en pacientes con enfermedad pulmonar obstructiva crónica / [Relationship between Hoover sign, functional and variables, and curvature radius in patients with obstructive pulmonary disease]

ABSTRACT

The purpose of the present study was 1) to relate the Hoover sign -SH (+)- with several functional (spirometry and lung volumes) and radiographic (AP x-ray) parameters, 2) to characterize the changes in diaphragmatic curvature radius and the efficiency and to establish some relationships with the functional and radiographic parameters. Fifteen patients with COPD (SH (+), n 8) were studied. The radius was determined in the right hemidiaphragm after maximal inspired and expired x-ray. The SH (+) was found in more severely obstructed patients (FEV1