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The Snubbed Complication: Why Postinfarction Ventricular Septal Defect Management Lacks Evidence-Based Guidance in
Silvia Corona1, Yoan Lamarche2, Reda Ibrahim3
1Cardiac Surgery Department, Montreal Heart Institute, Montreal, Canada; Structural Heart Valve Center and Interventional Cardiology Department, Montreal Heart Institute, Montreal, Canada.
Insights
Managing postinfarction ventricular septal defect (VSD) with cardiogenic shock and aortic stenosis is challenging. Multidisciplinary consensus is vital, as all treatment strategies carry significant risks, especially with acute tissue friability.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Interventional Cardiology
Background:
- Postinfarction ventricular septal defect (VSD) management is complex, particularly with cardiogenic shock and severe aortic stenosis.
- No clear clinical guidelines exist for these challenging cases.
Background:
The management of postinfarction ventricular septal defect (VSD) is contentious, especially when complicated by cardiogenic shock and concomitant severe aortic stenosis, with no clear guidelines.
Case Summary:
A 73-year-old woman presented with cardiogenic shock due to a large postinfarction VSD (Qp:Qs = 5) and unsuspected severe aortic stenosis. A percutaneous strategy was attempted, but the patient died from a residual shunt and multiorgan failure.
Discussion:
Three management strategies were initially considered: Viewpoint 1 advocated for immediate combined surgery (VSD repair, aortic valve replacement, coronary artery bypass grafting), arguing for a definitive, single-stage correction given the patient's profile. Viewpoint 2 proposed venoarterial extracorporeal membrane oxygenation as a bridge to delayed surgery, prioritizing stabilization and tissue healing to reduce the high risk of operating on acute, friable myocardium. Viewpoint 3 deemed surgery and extracorporeal membrane oxygenation prohibitively risky, favoring a staged transcatheter approach (balloon valvuloplasty followed by VSD closure) to circumvent the morbidity of open surgery.
Take-Home Messages:
Postinfarction VSD management requires urgent, multidisciplinary consensus. All strategies carry significant risks, and percutaneous solutions are limited by tissue friability in the acute phase.
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