Negative impact of cardiac evaluation before vascular surgery

Area of Science:

• Cardiology
• Vascular Surgery
• Medical Decision Making

Background:

• The optimal preoperative cardiac risk assessment for patients undergoing peripheral vascular disease surgery remains debated.
• This study investigates the adverse outcomes associated with comprehensive cardiac evaluations and interventions prior to vascular operations.

Discussion:

• Extensive cardiac workups, including echocardiography, radionuclide ventriculography, dipyridamole thallium scintigraphy, and cardiac catheterization, were performed in 42 patients.
• These evaluations led to significant delays, with a median time of 25 days between cardiac workup and vascular surgery.
• Complications arose from interventions like percutaneous transluminal coronary angioplasty and coronary artery bypass grafting, including graft infections and wound complications.

Key Insights:

• Sixteen patients (38%) experienced adverse events during cardiac evaluation.
• Eight patients (19%) refused necessary vascular surgery after the extended cardiac workup, with two limb ischemia patients requiring amputation due to delays.
• Complications from cardiac interventions included prosthetic graft infection, pseudoaneurysms, sternal wound infections, renal failure, and brain anoxia.

Outlook:

• The findings suggest that extensive preoperative cardiac evaluations may introduce iatrogenic risks and delays.
• Future strategies should balance the necessity of cardiac assessment with the potential for harm and impact on surgical timelines.
• Individualized risk-benefit analyses are essential before implementing comprehensive cardiac workups for vascular surgery candidates.