[Cardiac insufficiency and its morphological expression].

Area of Science:

• Cardiovascular Morphology
• Pathophysiology
• Cellular Biology

Context:

• Current understanding of cardiac insufficiency lacks a unified morphological perspective.
• Myocardial morphology in heart failure is complex and varies with underlying conditions.
• Experimental models are crucial for elucidating cellular changes in cardiac dysfunction.

Purpose:

• To characterize the current morphological views on cardiac insufficiency.
• To investigate ultrastructural changes in the myocardium during experimental myocardial infarction and developing cardiac incompetence.
• To identify potential markers of irreversible myocardial damage.

Summary:

• Cardiac insufficiency presents diverse pathogenetic mechanisms, challenging a singular approach.
• Ultrastructural analysis of rabbit myocardium post-myocardial infarction revealed significant myocyte changes.
• The presence of calcium phosphate-rich bodies within mitochondria signifies irreversible damage in acute cardiac incompetence.

Impact:

• Highlights the heterogeneity of cardiac insufficiency pathogenesis.
• Identifies specific ultrastructural alterations as indicators of irreversible myocardial injury.
• Informs future research on targeted therapeutic strategies for heart failure based on distinct morphological profiles.