Treadmill exercise test in children with cardiomyopathy and postmyocarditic myocardial hypertrophy

Abstract

The treadmill exercise test with the Bruce protocol was performed in three patients with post-myocarditic myocardial hypertrophy (PMH) and ten patients with cardiomyopathy, including three with dilated cardiomyopathy (DCM), five with hypertrophic obstructive cardiomyopathy (HOCM), and two with hypertrophic and nonobstructive cardiomyopathy (HCM). The endurance time was below the normal level in all but one case and was normal or near normal in the three cases with PMH. ST depression was observed in five cases, none of which were of HCM. A marked increase in amplitude of the negative phase of the P wave in V1 was observed in one patient with DCM. The response of blood pressure during the exercise was abnormal in patients with DCM and HCM but was normal in PMH.

Effects of diaspirin crosslinked hemoglobin infusion in treadmill-exercised swine

“…Graded treadmill exercise is a common test used to determine the maximal exercise capacity in both human and animal subjects [1,2]. Exercise elicits the integration of all physiologic systems to maintain a constant internal milieu.…”

Indicações do teste ergométrico em crianças e adolescentes

“…With ET, the severity of the dilated and hyperthrophic myocardiopathies, obstructive or not, may be evaluated by observing the effort tolerance, blood pressure behavior, electrocardiographic alterations and arrhythmias (26) . The cardiopulmonary effort test with measurement of the exhaled gases and the direct determination of the anaerobic threshold and VO 2 max is one of the most important tests to evaluate the severity of the cardiac insufficiency and the effectiveness of the treatments performed (27) .…”