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Published on: July 3, 2026
Risk Analysis of Waiting-List Mortality in Heart Transplantation: A Multicenter Study in Korea
Jung-Hwan Kim1, Yang Hyun Cho2, Suk Ho Sohn3
1Division of Cardiovascular Surgery, Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea.
Yonsei Medical Journal
|July 24, 2026
Summary
Heart transplant waiting list mortality is high for patients needing ECMO or with advanced disease. Risk factors include specific heart conditions, low hemoglobin, arrhythmias, and high MELD-XI scores.
Area of Science:
- Cardiology
- Transplantation Medicine
- Critical Care
Background:
- Limited national data exists on heart transplantation (HT) waiting list mortality in Korea.
- Understanding waiting list outcomes is crucial for improving patient management.
Purpose of the Study:
- To investigate heart transplantation waiting list mortality in Korea.
- To identify associated risk factors for mortality on the HT waiting list.
Main Methods:
- Retrospective analysis of 1101 patients wait-listed for HT between 2012-2017 across four centers.
- Defined waiting list time from listing to HT, death, or recovery.
- Censored subjects at transplantation or recovery.
Main Results:
- 29.7% required mechanical circulatory support (MCS), including extracorporeal membrane oxygenation (ECMO) or ventricular assist device (VAD).
- ECMO-bridged patients had significantly lower survival rates than VAD-bridged or non-MCS patients.
- Independent risk factors for mortality included congenital heart disease, restrictive cardiomyopathy, status 0, low hemoglobin, ventricular arrhythmia, high MELD-XI score, and ECMO bridging.
Conclusions:
- ECMO bridging and status 0 are associated with significantly higher waiting list mortality.
- Advanced end-organ damage at listing is an independent risk factor for waiting list mortality.

