Related Experiment Video
Updated: Jan 5, 2026
Author Spotlight: Enhancing Graft Viability Assessment Through Quantitative Metrics and Innovative Reservoir Systems
Published on: August 2, 2024
Primary graft dysfunction after heart transplantation: Outcomes and resource utilization
Mohammed Quader1, Robert B Hawkins2, J Hunter Mehaffey2
1Division of Cardiothoracic Surgery, Virginia Commonwealth University, Richmond, Virginia.
Insights
Primary graft dysfunction (PGD) affects 15% of heart transplant recipients, leading to increased complications, resource use, and mortality. Addressing PGD is crucial for improving patient outcomes and reducing healthcare costs.
Area of Science:
- Cardiovascular Surgery
- Transplantation Medicine
- Critical Care Medicine
Background:
- A unified definition of primary graft dysfunction (PGD) in heart transplantation, established in 2014, categorizes moderate to severe cases by the need for mechanical circulatory support.
- While risk factors for PGD are known, its impact on patient outcomes and resource utilization remains understudied.
Purpose of the Study:
- To examine the resource utilization and associated costs linked to primary graft dysfunction (PGD) after heart transplantation.
Main Methods:
- Analysis of adult heart transplantations from a statewide database (2001-2016).
- Patients were categorized into two groups: those with PGD (requiring mechanical circulatory support) and those without PGD.
- Comparison of demographic, preoperative, and postoperative variables, resource utilization, complications, and costs between the two groups.
Main Results:
- Primary graft dysfunction (PGD) occurred in 15.3% of 718 heart transplant recipients, with prevalence varying between 3.7% and 22.7% over the study period.
- Patients with PGD experienced significantly higher intensive care unit hours, ventilation hours, reoperations for bleeding, blood product transfusions, and longer hospital stays.
- The PGD group had substantially higher postoperative complications, including operative mortality (31.8% vs. 3.8%), and a significantly higher median cost of heart transplantation ($229,482 vs. $101,788).
Conclusions:
- Primary graft dysfunction (PGD) affects a significant portion of heart transplant recipients, correlating with increased complications, resource use, and mortality.
- Developing preventive strategies for PGD is essential to mitigate its impact on resource utilization and enhance patient survival and recovery outcomes.
Background:
A unified definition of primary graft dysfunction (PGD) after heart transplantation was adopted in 2014, with moderate and severe PGD defined as a need for mechanical circulatory support. While risk factors for PGD are well identified, outcomes and resource utilization have not been well-studied. We examined the resource utilization and associated costs with PGD.
Methods:
All adult heart transplantations (2001-2016) from a statewide Society of Thoracic Surgery database were analyzed by dividing them into two groups-with PGD (requiring mechanical circulatory support) and without PGD.
Results:
Of the 718 heart transplants, 110 (15.3%) patients developed PGD. Prevalence of PGD for the study duration ranged from 3.7% to 22.7% with no significant trend. The most frequently used mechanical circulatory support device was intra-aortic balloon pump (88%), followed by extracorporeal membrane oxygenation (17%), and catheter-based circulatory support devices (3%). There were no significant differences in demographics or preoperative variables between the two groups. Resource utilization such as total intensive care unit hours, ventilation hours, reoperation for bleeding, blood product transfusions, and length of stay were significantly higher in the PGD group. Postoperative complications were also higher in PGD group including operative mortality (31.8% vs 3.8%, P < .0001). The median cost of heart transplantation was significantly higher in the PGD group $229 482 ($126 044-$388 889) vs $101 788 ($72 638-$181 180) P < .0001.
Conclusion:
Primary graft dysfunction following heart transplantation developed in 15% of patients. Patients with PGD had significantly higher complications, resource utilization, and mortality. Preventive measures to address the development of PGD would reduce resource utilization and improve outcomes.
