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Published on: April 25, 2014
Cardiac rupture in acute myocardial infarction with ST segment elevation. Clinical course and prognosis
Marianna Janion1, Beata Wozakowska-Kapłon, Jerzy Sadowski
1Department of Cardiology, District Hospital, Kielce, Poland.
Insights
Cardiac rupture (CR) is a serious complication of ST-segment elevation myocardial infarction (STEMI). Conservative treatment of CR leads to significantly higher mortality compared to surgical intervention.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Medical Diagnostics
Background:
- Cardiac rupture (CR) is a critical complication of acute myocardial infarction (MI), accounting for a significant portion of early deaths.
- Despite advancements in MI treatment, mortality rates from CR remain high.
- CR can affect the left ventricular free wall, interventricular septum, or papillary muscles.
Purpose of the Study:
- To evaluate the incidence, clinical presentation, and outcomes of patients experiencing CR following ST-segment elevation myocardial infarction (STEMI).
- To compare the effectiveness of surgical versus conservative management strategies for CR.
- To identify factors influencing mortality in patients with CR.
Main Methods:
- Retrospective analysis of 27 patients with STEMI who developed CR.
- Data collection included in-hospital and three-month follow-up.
- Diagnosis of CR was confirmed through clinical assessment and echocardiography.
Main Results:
- The overall mortality rate for STEMI patients was 10.5%, with CR accounting for 20.5% of these deaths.
- Patients with CR had a high mortality rate of 55.6%.
- Mortality was substantially higher in the conservatively treated group (72.2%) compared to the surgically treated group (22.2%).
Conclusions:
- Conservative management of CR is associated with increased mortality.
- Female patients, those receiving thrombolysis, and those treated conservatively faced higher mortality risks.
- Prompt diagnosis, hemodynamic stabilization, and timely cardiac surgery are crucial for improving outcomes in STEMI patients with CR.
Introduction:
Cardiac rupture (CR), involving left ventricular free wall, interventricular septum or papillary muscles, accounts for 15% of all deaths in the acute phase of myocardial infarction (MI). After cardiac arrhythmias and cardiogenic shock, CR is the third most common cause of death in acute MI. In spite of progress in the treatment of MI, mortality due to CR did not change in recent years.Aim. To assess the incidence, clinical course and outcome in patients with acute MI complicated by CR who were treated in our centre.
Methods:
The study group consisted of 697 consecutive patients who were hospitalised due to acute MI with ST segment elevation (STEMI). The in-hospital and three-month follow-up data were analysed in 27 (3.9%) patients who developed CR. In 20 patients CR occurred in the left ventricular free wall, in 5 interventricular septum, in one both of these structures, and in one papillary muscle. The diagnosis of CR was based on clinical presentation and echocardiography.
Results:
The overall mortality in 697 patients with STEMI was 10.5%. Mortality rate in patients with CR was 55.6% (15 patients) which accounted for 20.5% of all deaths. Nine patients with CR underwent cardiac surgery whereas 18 were treated conservatively. Two (22.2%) patients from the former group and 13 (72.2%) patients from the latter group died.
Conclusions:
1. Mortality due to CR was increased in patients who were treated conservatively, who received thrombolysis and those who were females. 2. Rapid and accurate diagnosis, proper correction of hemodynamical disturbances and timely introduction of cardiac surgery improve prognosis in patients with CR complicating STEMI.
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