Related Experiment Video
Updated: Oct 18, 2025
Blood Circuit Reconstruction in an Abdominal Mouse Heart Transplantation Model
Published on: June 3, 2021
Impact of Circulatory Assistance in the Early Evolution After Heart Transplantation. Unicentric Experience
Ana Martínez-Lauwers1, Patricia Arenas2, Víctor Pérez-Roselló2
1University of Valencia, Faculty of Medicine, Valencia, Spain.
Insights
Circulatory support (CS) before heart transplantation (HT) increases the risk of graft failure, infection, and mortality. Mechanical ventilation further worsens outcomes, highlighting CS as a predictor of 1-year mortality post-HT.
Area of Science:
- Cardiology
- Transplantation Medicine
- Critical Care Medicine
Background:
- Heart transplantation (HT) is a definitive treatment for end-stage heart failure.
- There's a growing trend of utilizing circulatory support (CS) as a bridge to HT.
- Understanding the impact of CS on HT outcomes is crucial.
Purpose of the Study:
- To evaluate the outcomes of heart transplantation in patients bridged with circulatory support (CS).
- To compare patients who received HT with and without prior CS.
- To identify prognostic factors for 1-year mortality after HT.
Main Methods:
- Retrospective single-center study of 293 HT patients (2009-2018).
- Analysis of two cohorts: patients with and without CS prior to HT.
- Collection and review of clinical data and 1-year post-transplant events.
Main Results:
- Patients bridged with CS had higher rates of primary graft failure, infection, and mortality.
- Cardiac allograft vasculopathy showed a trend towards lower incidence in the CS group.
- Mechanical ventilation combined with CS significantly increased graft failure, infection, and renal dysfunction.
Conclusions:
- Circulatory support as a bridge to HT is associated with increased primary graft failure, infection, and 1-year mortality.
- The addition of mechanical ventilation to CS negatively impacts prognosis.
- CS is a significant predictor of 1-year mortality following heart transplantation.
Background:
Heart transplantation (HT) is the reference treatment for patients with terminal heart failure. In recent years there has been a progressive increase in HT procedures in patients who have a circulatory support (CS).
Methods:
This is a retrospective single-center study of 293 consecutive patients who underwent HT from 2009 to 2018, analyzing the evolution of the 2 cohorts: patients with and without CS as a bridge to HT. Baseline and evolutionary clinical data collected following the usual follow-up protocol were recorded, including clinical events observed during the follow-up 1 year after the procedure.
Results:
The subgroup of patients transplanted with CS showed a higher incidence of primary graft failure, frequent infection, and mortality. A tendency toward lower cardiac allograft vasculopathy was observed in this subgroup. Mechanical ventilation added to the CS resulted in a higher incidence of primary graft failure, infection, and renal dysfunction. The CS variable as a bridge to HT was shown to be predictive of 1-year mortality in both univariate (odds ratio, 1.84; 95% confidence interval, 1.03-3.3; P = .038) and multivariate (odds ratio, 2.1; 95% confidence interval, 1.01-4.3; P = .047) analyses.
Conclusions:
In our experience, CS as a bridge to HT results in a higher incidence of primary graft failure, frequent infection, and mortality at 1-year follow-up. Mechanical ventilation added to CS has a clear unfavorable prognostic impact. CS as a bridge to HT was shown to be predictive of 1-year mortality in both univariate and multivariate analyses.
