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Use of Two Intracorporeal Ventricular Assist Devices As a Total Artificial Heart
Published on: May 11, 2018
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[Conversion Surgery from Extra-corporeal to Implantable Ventricular Assist Devices].
1Department of Cardiac Surgery, the University of Tokyo, Tokyo, Japan.
Kyobu Geka. the Japanese Journal of Thoracic Surgery
|September 22, 2021
Summary
Converting from an Nipro Ventricular Assist Device (VAD) to an implantable VAD (iVAD) is crucial for patients awaiting heart transplants. This summary outlines three key tips for successful conversion surgery, focusing on initial implantation strategy, patient recovery, and infection prevention.
Area of Science:
- Cardiovascular Surgery
- Medical Devices
- Transplantation Medicine
Background:
- Extra-corporeal Ventricular Assist Devices (VADs), such as the Nipro VAD, are vital for patients with severe cardiogenic or post-cardiotomy shock ineligible for heart transplantation.
- Conversion to an implantable VAD (iVAD) is often necessary for patients stabilized on Nipro VAD therapy who are candidates for heart transplantation or destination therapy.
- Successful transition to an iVAD facilitates patient recovery and return to social life.
Purpose of the Study:
- To summarize critical considerations for successful conversion surgery from Nipro VAD to iVAD.
- To provide practical guidance for surgeons performing this specialized procedure.
- To highlight strategies for minimizing complications during VAD conversion.
Main Methods:
- The manuscript outlines three essential tips for successful Nipro VAD to iVAD conversion surgery.
- Emphasis is placed on proactive surgical planning during initial Nipro VAD implantation.
- Recommendations include patient recovery assessment and infection prevention protocols.
Main Results:
- Successful conversion surgery requires careful planning during the initial Nipro VAD implantation, including protecting mediastinal structures and limiting dissection.
- Performing conversion surgery only after complete patient recovery from the initial VAD procedure is critical.
- Preventing iVAD infection by addressing existing Nipro VAD exit site infections is paramount.
Conclusions:
- Conversion surgery from Nipro VAD to iVAD is an essential procedure for select patients.
- Key factors for success include meticulous initial implantation, appropriate surgical timing, and rigorous infection control.
- Dissemination of best practices from experienced institutions is needed due to the limited case numbers of this procedure.

