Intraoperative Hemoadsorption in Patients With Native Mitral Valve Infective Endocarditis

Area of Science:

• Cardiology
• Intensive Care Medicine
• Surgical Innovation

Background:

• Cardiac surgery for infective endocarditis carries high mortality due to postoperative septic multiorgan failure.
• Hemoadsorption therapy is a potential strategy to mitigate surgical risks by reducing circulating cytokines.
• Mitral valve endocarditis presents unique challenges in cardiac surgery outcomes.

Purpose of the Study:

• To evaluate the clinical effectiveness of intraoperative hemoadsorption in patients undergoing cardiac surgery for mitral valve endocarditis.
• To assess the impact of hemoadsorption on postoperative sepsis and mortality rates.
• To determine the effect of hemoadsorption on hemodynamic stability post-surgery.

Main Methods:

• A comparative study of 58 patients with native mitral valve endocarditis undergoing cardiac surgery.
• Patients were divided into two groups: intraoperative hemoadsorption (30 patients) and control (28 patients).
• Primary endpoints included postoperative sepsis, sepsis-associated death, 30-day mortality, vasopressor use, and systemic vascular resistance.

Main Results:

• The hemoadsorption group showed a trend towards reduced postoperative sepsis (5 vs. 11 patients, P=0.05).
• Significantly fewer sepsis-associated deaths occurred in the hemoadsorption group (0 vs. 5 deaths, P=0.02).
• Hemoadsorption patients exhibited improved hemodynamic stability, with lower vasopressor requirements (P=0.01) and higher systemic vascular resistance (P=0.02).

Conclusions:

• Intraoperative hemoadsorption may decrease the incidence of postoperative sepsis and sepsis-related mortality in mitral valve endocarditis surgery.
• Hemoadsorption therapy appears to enhance hemodynamic stability following cardiac surgery.
• These findings suggest that intraoperative hemoadsorption is a promising adjunctive therapy for improving surgical outcomes in this patient population.