Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi · 2001
[The role of exercise testing in evaluation of functional capacity at patients with ischemic ventricular dysfunction].
Аннотация на английскомСтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Mitu F, Mitu M, Pandele G I
Аннотация
UNLABELLED: The assessment of functional capacity represents an important parameter in the prognostic stratification of patients with heart failure. The objective of the paper is the testing of exercise capacity at patients with ischemic ventricular dysfunction.
METHODS: There have been selected 80 patients with coronary heart disease (old myocardial infarction, angina pectoris, ischemic cardiomiopathy) admitted in the Department of Internal Medicine, Rehabilitation Hospital, Iasi, during 1.01.1998-31.12.1999. They were divided into two groups: group A (46 patients) with proper ventricular function and ejection fraction (EF) above 50% and group B (34 patients) with EF under 50%. They underwent exercise testing at the ergometric bicycle.
RESULTS: Patients of group B had higher values of resting heart rate (74 +/- 9 vs 70 +/- 11, p = 0.04). There were registered similar levels at the maximal exercise at both groups (time-tension index, watt, MET). The evolution of the group with ventricular dysfunction is distinguished by a lower length of time of exercise (8.6 +/- 4.4 vs 9.8 +/- 5.2 min, p = 0.05) and by a significantly greater value of the ST depression (1.6 +/- 1.4 vs 0.9 +/- 1.1 mm, p = 0.01).
DISCUSSION AND CONCLUSIONS: The higher resting heart rate at patients with heart failure suggests the activation of neuroumoral mechanisms, especially the adrenergic activation. These patients reach maximal levels similar to those with good systolic function but in a shorter length of time, due to a physical deconditioning or to the same neuroumoral mechanisms. Ischemia is higher at these patients.
METHODS: There have been selected 80 patients with coronary heart disease (old myocardial infarction, angina pectoris, ischemic cardiomiopathy) admitted in the Department of Internal Medicine, Rehabilitation Hospital, Iasi, during 1.01.1998-31.12.1999. They were divided into two groups: group A (46 patients) with proper ventricular function and ejection fraction (EF) above 50% and group B (34 patients) with EF under 50%. They underwent exercise testing at the ergometric bicycle.
RESULTS: Patients of group B had higher values of resting heart rate (74 +/- 9 vs 70 +/- 11, p = 0.04). There were registered similar levels at the maximal exercise at both groups (time-tension index, watt, MET). The evolution of the group with ventricular dysfunction is distinguished by a lower length of time of exercise (8.6 +/- 4.4 vs 9.8 +/- 5.2 min, p = 0.05) and by a significantly greater value of the ST depression (1.6 +/- 1.4 vs 0.9 +/- 1.1 mm, p = 0.01).
DISCUSSION AND CONCLUSIONS: The higher resting heart rate at patients with heart failure suggests the activation of neuroumoral mechanisms, especially the adrenergic activation. These patients reach maximal levels similar to those with good systolic function but in a shorter length of time, due to a physical deconditioning or to the same neuroumoral mechanisms. Ischemia is higher at these patients.