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[Clinico-morphological characteristics of recurrent myocardial infarct with lethal outcome]
Insights
Recurrent myocardial infarction significantly increases hospital mortality. Early asthmatic and arrhythmic presentations predict lethal outcomes in these heart attack patients.
Area of Science:
- Cardiology
- Pathology
Context:
- Follow-up study of 656 patients surviving the initial 72 hours of myocardial infarction.
- Analysis of recurrent disease incidence and mortality rates.
Purpose:
- To investigate the impact of recurrent myocardial infarction on hospital mortality.
- To identify clinical and morphological predictors of fatal recurrent myocardial infarction.
Summary:
- Recurrent myocardial infarction occurred in 16.1% of patients, with a 30.4% mortality rate.
- Non-recurrent myocardial infarction had a lower mortality rate of 1.6%.
- Lethal recurrent myocardial infarction cases frequently presented with asthmatic or arrhythmic symptoms and showed specific morphological features like colliquative necrosis.
Impact:
- Highlights recurrent myocardial infarction as a primary driver of hospital mortality post-heart attack.
- Suggests clinical and morphological characteristics can aid in identifying high-risk patients.
Abstract:
The work is based on the results of follow-up of 656 patients with myocardial infarction who survived the first 72 hours after the attack. The disease followed a recurrent course in 105 persons (16.1%), 32 (30.4%) of whom died. Nine (1.6%) out of 551 patients who had no recurrence of the disease died. Recurrent necrosis was the principal cause of hospital mortality in myocardial infarction, with death occurring 3 days after the onset of the disease. The clinical picture of recurrent myocardial infarction with a lethal outcome is characterized by a high incidence of the predominance of the asthmatic and arrhythmic variants. The morphologic picture of recurrent myocardial infarction is characterized by the predominance of colliquative necrosis, large foci of myocardial "injury" in the perinecrotic zone, and poorly demonstrated proliferative processes.