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[Pathophysiology and clinic of coronary insufficiency (author's transl)]
Insights
Coronary insufficiency involves impaired blood flow to the heart, affecting cardiac function and leading to conditions like angina pectoris. Understanding its regulation and disturbances is key for diagnosis and treatment.
Area of Science:
- Cardiology
- Physiology
Context:
- Coronary circulation is vital for myocardial health.
- Regulation involves physical and biological mechanisms.
Purpose:
- To define coronary insufficiency.
- To discuss coronary circulation and its regulation.
- To explore clinical manifestations and diagnostic procedures.
Summary:
- Coronary insufficiency is defined, differentiating physical and biological regulation mechanisms.
- Disturbances in regulation, including impaired left ventricular function, are highlighted.
- Clinical aspects, such as angina pectoris and myocardial infarct, are linked to pathological lesions and pathophysiology.
Impact:
- Provides a comprehensive overview of coronary insufficiency.
- Clarifies the pathophysiology and clinical presentation.
- Outlines indications for selective coronary angiography.
Abstract:
Coronary insufficiency is defined. Some specialities of coronary circulation and aspects of their regulation are discussed. Physical mechanisms such as arteriovenous pressure gradient, vascular and extravascular components of the coronary resistance, the influence of rhythm change on the contraction-conditions of the myocardium, as well as the pulse-rate are differentiated from biological regulation mechanism, such as metabolic, nervous and hormone influences. The typical distrubance of this regulation in the coronary insufficiency is emphasized including impaired left ventricular function. In the second part, the clinic or coronary insufficiency deducted from the anatomical-pathological lesions as well as their pathophysical relations is dealt with, for instance manifestation of angina pectoris and myocardial infarct. The indications and contra-indications for selective coronary angiography are described.