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[Endothelin-1 level in the complicated course of myocardial infarction]
Insights
Endothelin-1 (ET-1) levels change during myocardial infarction (MI) recovery. Uncomplicated MI shows decreasing ET-1, while complicated MI with thrombosis or effusion has sustained or altered ET-1 levels, impacting heart function.
Area of Science:
- Cardiology
- Biochemistry
Context:
- Myocardial infarction (MI) is a leading cause of mortality.
- Endothelin-1 (ET-1) is a potent vasoconstrictor implicated in cardiovascular disease.
- Understanding ET-1 dynamics in different MI presentations is crucial for prognosis.
Purpose:
- To investigate the temporal changes in endothelin-1 (ET-1) levels in myocardial infarction (MI).
- To compare ET-1 profiles in uncomplicated MI versus MI with parietal thrombosis, left ventricular aneurysm, or pericardial effusion.
- To correlate ET-1 levels with cardiac structural and functional parameters.
Summary:
- In uncomplicated myocardial infarction (MI), endothelin-1 (ET-1) increases early, normalizes in the subacute phase.
- MI with parietal thrombosis/aneurysm shows sustained ET-1 elevation throughout the acute and subacute phases.
- MI with pericardial effusion exhibits an initial ET-1 rise, with no significant change in later phases.
- Elevated ET-1 correlates positively with enlarged heart cavities and pulmonary artery pressure, and negatively with systolic function.
Impact:
- These findings highlight distinct ET-1 patterns based on MI complications.
- The study provides insights into the role of ET-1 in MI pathophysiology and cardiac remodeling.
- Understanding these ET-1 dynamics may aid in risk stratification and therapeutic development for myocardial infarction patients.
Abstract:
In the uncomplicated course of myocardial infarction (MI), the level of endothelin-1 (ET-1) comes to be increased beginning from day 1 and remains the same during the acute phase of the disease and gets decreased during the subacute phase. In MI presenting with parietal thrombosis, left ventricular aneurism, the level of ET-1 increases during the first period of 24 hours, increasing further toward the end of the acute phase, there being no decrease in the subacute phase. In MI presenting with pericardial effusion, an increase in the level of ET-1 is seen during the first period of 24 hours of the disease with no rise being recordable in peptide concentration during the acute and subacute phases. There is a positive correlation between the level of ET-1 and size of the heart cavities in the systole and diastole, pressure in the pulmonary artery, and a negative one with indices for the systolic function.