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[Comparative clinical and radiocardiographic studies in coronary disease]
Insights
This study reveals that coronary disease patients often experience left-ventricular insufficiency, even without apparent cardiac symptoms. Radiocardiography showed decreased cardiac output and pulmonary stasis in most patients, highlighting subclinical heart dysfunction.
Area of Science:
- Cardiology
- Cardiovascular Physiology
Background:
- Coronary artery disease (CAD) encompasses conditions like myocardial infarction and atherosclerotic myocardiosclerosis.
- Assessing cardiovascular function is crucial for managing patients with CAD, especially in post-convalescent stages.
Purpose of the Study:
- To clinically and functionally characterize patients with coronary disease.
- To compare central hemodynamics in different functional states of the cardiovascular system in CAD patients.
- To identify subclinical left-ventricular insufficiency in coronary disease.
Main Methods:
- Radiocardiography was used to assess central hemodynamics.
- Patients with coronary disease (n=124) were categorized into three groups based on cardiovascular system function.
- Clinical and functional characteristics were evaluated.
Main Results:
- Left-ventricular insufficiency was identified in patients with coronary disease, irrespective of clinical signs of heart failure.
- Radiocardiography revealed decreased minute and stroke volumes in all patient groups.
- Pulmonary circulation stasis, indicated by altered pulmonary blood volume and velocity, was observed, signifying left-ventricular insufficiency.
Conclusions:
- Subclinical left-ventricular insufficiency is prevalent in patients with coronary disease.
- Radiocardiographic assessment is valuable for detecting hemodynamic changes indicative of left-ventricular insufficiency in CAD patients.
- Early detection of left-ventricular insufficiency is essential for managing coronary disease progression.
Abstract:
A clinical-functional characteristics was carried out of 124 patients with coronary disease (104 patients with a past history of myocardial infarction in a post-convalescent stage and 20 patients with atherosclerotic myocardiosclerosis). The patients were distributed into three groups depending on the functional state of the cardiovascular system. Manifestations of decompensation were found only in one of the groups--postinfarction states. A comparison was made of the changes in the central hemodynamics, assessed radiocardiographically. In all the three groups, a decrease of the minute and stroke volumes was radiocardiographically established as well as stasis in the pulmonary circulation, confirmed by the changes in the pulmonary volume of blood and velocity of blood within the pulmonary circulation, a manifestation of left-ventricular insufficiency. Left ventricular insufficiency is found in the patients with coronary disease in the absence of clinical manifestations of cardiac insufficiency.