A Dual-Lumen Percutaneous Cannula for Managing Refractory Right Ventricular Failure

Area of Science:

• Cardiology
• Medical Devices
• Critical Care Medicine

Background:

• Refractory right ventricular (RV) failure poses significant management challenges.
• Limited data exists on the efficacy of dual-lumen percutaneous cannulas for RV assist device (RVAD) support via the right internal jugular vein (IJV).

Purpose of the Study:

• To evaluate the safety and effectiveness of a dual-lumen percutaneous cannula for RVAD support in patients with refractory RV failure.
• To assess patient outcomes, including weaning rates, mortality, and device-specific complications.

Main Methods:

• Retrospective review of 40 patients receiving RVAD support with a dual-lumen percutaneous cannula (April 2017-February 2019).
• Analysis of outcomes stratified by indication for RVAD support: postcardiotomy, cardiogenic shock, and primary respiratory failure.
• Comparison of outcomes with existing literature data for surgically placed RVADs and other percutaneous approaches.

Main Results:

• Higher weaning rates were observed compared to literature for surgically placed RVADs (94% postcardiotomy, 42% cardiogenic shock, 70% respiratory failure).
• Mortality rates varied by subgroup (11% postcardiotomy, 58% cardiogenic shock, 40% respiratory failure), with some subgroups showing improved outcomes compared to literature.
• No major device-related complications were reported.

Conclusions:

• The percutaneous dual-lumen cannula is a safe and effective option for managing refractory RV failure.
• This approach demonstrates an improved weaning and mortality profile with minimal device-specific adverse events.
• Further research may support its broader adoption in clinical practice.