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Cardiac rupture in patients with acute myocardial infarction
Insights
Myocardial rupture occurred in 2.3% of acute myocardial infarction (AMI) patients, particularly women aged 60-69. Early monitoring within six days of AMI onset is crucial for high-risk individuals to prevent this complication.
Area of Science:
- Cardiology
- Pathology
Background:
- Myocardial rupture is a rare but serious complication of acute myocardial infarction (AMI).
- Understanding the incidence and risk factors for myocardial rupture is essential for improving patient outcomes.
Purpose of the Study:
- To evaluate the occurrence of myocardial rupture in an unselected population with AMI.
- To identify patient characteristics and clinical factors associated with myocardial rupture.
Main Methods:
- Retrospective analysis of 1,737 patients with AMI.
- Comparison of patients with myocardial rupture to matched controls (fatal AMI without rupture and AMI survivors).
Main Results:
- Myocardial rupture occurred in 2.3% of all AMI cases (15.7% of hospital deaths).
- Highest risk observed in women aged 60-69.
- Associated factors included hypertension, persistent pain, and inferior wall AMI.
- Most ruptures (95%) occurred within 6 days of symptom onset, 40% within 24 hours.
Conclusions:
- Myocardial rupture is a significant cause of mortality post-AMI.
- Identifying high-risk patients, particularly women in the 60-69 age group, is crucial.
- Intensive monitoring within the first six days of AMI symptom onset may help prevent myocardial rupture.
Abstract:
The occurrence of myocardial rupture was evaluated in an unselected population of 1,737 patients with acute myocardial infarction (AMI). Patients with cardiac rupture after AMI were compared with age- and sex-matched control patients with fatal AMI not related to rupture and with AMI survivors discharged home. Rupture was found in 40 patients (15.7 percent of hospital deaths), or 2.3 percent of all cases of AMI. At the highest risk for rupture were women aged 60 to 69, although the age distribution did not differ significantly from that of patients dying of other causes. More patients with myocardial rupture had hypertension during hospitalization, persistent pain, and inferior wall myocardial infarction when compared with controls. The majority (95 percent) of cardiac ruptures occurred within the first six days, 40 percent within the first 24 hours after the onset of symptoms. Approximately 20 percent of ruptures were diagnosed as subacute; in only two was surgical intervention attempted unsuccessfully. The high-risk group of patients should be carefully monitored within the first six days after the onset of symptoms of AMI in an effort to prevent myocardial rupture.