Management of postinfarction ventricular septal rupture

Area of Science:

• Cardiovascular Surgery
• Interventional Cardiology
• Critical Care Medicine

Background:

• Ventricular septal rupture (VSR) is a severe complication of acute myocardial infarction (AMI).
• Surgical repair of VSR carries a high mortality rate, necessitating careful patient selection and timing.
• Optimal surgical timing and management strategies for VSR remain debated.

Purpose of the Study:

• To evaluate the impact of surgical timing on outcomes for patients with VSR post-AMI.
• To identify prognostic factors influencing operative mortality and long-term survival.
• To propose a management plan for VSR following AMI.

Main Methods:

• Retrospective analysis of 35 patients undergoing surgical VSR repair after AMI.
• Categorization of patients based on preoperative hemodynamic stability and presence of cardiogenic shock.
• Assessment of operative mortality, long-term survival, and prognostic factors including time to surgery and preoperative condition.

Main Results:

• Overall operative mortality was 46%.
• Patients operated on after 4 weeks (n=14) had a 21% mortality, mainly due to late cardiac failure.
• Emergency operations in 21 patients with cardiogenic shock had a 62% mortality but saved lives.
• Time from diagnosis to surgery and preoperative condition were key prognostic factors.
• Multivessel disease was common, with 80% mortality in patients not receiving concomitant coronary artery bypass grafting (CABG).

Conclusions:

• Surgical repair of VSR post-AMI is feasible, with improved outcomes for stable patients operated on electively after 4-8 weeks.
• Emergency surgery can be life-saving in patients with cardiogenic shock, despite high mortality.
• A differentiated treatment approach and optimized surgical timing are crucial for managing VSR post-AMI.
• Concomitant CABG may improve outcomes in patients with multivessel disease.