Intraperitoneal pocket for left ventricular assist device placement

Area of Science:

• Cardiovascular Surgery
• Biomaterials Engineering
• Medical Device Technology

Background:

• Traditional implantation sites for HeartMate ventricular assist devices (VADs) in the peritoneal cavity or abdominal wall present significant challenges.
• These sites are associated with problematic complications, necessitating alternative surgical approaches.

Purpose of the Study:

• To introduce and evaluate a novel technique for HeartMate VAD implantation using an intraperitoneal pocket.
• To assess the safety and efficacy of this technique in reducing complications compared to conventional methods.

Main Methods:

• Creation of an intraperitoneal pocket using Gore-Tex Dual Mesh Plus Biomaterial to house the VAD.
• Comparison of complication rates in 30 consecutive patients who received the VAD with the new technique versus 16 patients implanted prior to its use.

Main Results:

• A significant reduction in pocket infections was observed (from 4/13 to 1/25, p = 0.038) in patients with implanted devices for over one month.
• A notable decrease in returns to surgery for bleeding complications was recorded (from 7/16 to 3/32, p = 0.010).
• Two hernia repairs were required post-explantation in the biomaterial pocket group.

Conclusions:

• The novel intraperitoneal pocket technique demonstrates early promise in decreasing bleeding and infection complications associated with HeartMate VAD implantation.
• Further investigation is warranted to validate these findings in a larger patient cohort.