Related Experiment Video
Updated: Jan 1, 2026

Rat Heterotopic Abdominal Heart/Single-lung Transplantation in a Volume-loaded Configuration
Published on: May 29, 2015
Heart-lung transplantation: A viable option for connective tissue diseases
Lily K Stern1, Van N Selby2, Nicholas A Kolaitis3
1Department of Medicine, University of California San Francisco, San Francisco, California.
Insights
Heart-lung transplantation (HLTx) in connective tissue disease (CTD) patients is a viable option. Outcomes for HLTx in CTD patients are comparable to lung transplantation (LTx) in CTD patients and HLTx in other conditions.
Area of Science:
- Cardiology
- Pulmonology
- Transplantation Medicine
- Rheumatology
Background:
- Lung transplantation (LTx) is established for connective tissue disease (CTD) with pulmonary issues.
- Outcomes for heart-lung transplantation (HLTx) in CTD patients are less understood.
- This study evaluates HLTx efficacy in CTD patients using the UNOS database.
Purpose of the Study:
- To assess the outcomes of heart-lung transplantation (HLTx) in patients with connective tissue disease (CTD).
- To compare HLTx in CTD patients against lung transplantation (LTx) in CTD patients and HLTx in other indications.
- To determine the graft survival rates and pre-transplant conditions for HLTx-CTD patients.
Main Methods:
- Retrospective analysis of the UNOS database from 1999 to 2018.
- Comparison of HLTx patients with CTD (HLTx-CTD) to LTx patients with CTD (LTx-CTD) and HLTx patients with other indications (HLTx-OI).
- Evaluation of primary outcomes (1- and 5-year graft survival) and secondary outcomes (rejection rates, pre-transplant discharge status).
Main Results:
- 17 HLTx-CTD patients were identified, comprising 3.3% of total HLTx.
- HLTx-CTD patients exhibited worse pre-transplant hemodynamic values compared to LTx-CTD patients.
- 1- and 5-year graft survival for HLTx-CTD was similar to LTx-CTD and HLTx-OI groups.
Conclusions:
- Heart-lung transplantation (HLTx) is a valid option for select CTD patients with cardiac and pulmonary involvement.
- HLTx in CTD patients demonstrates comparable morbidity and mortality to LTx in CTD patients and HLTx in other conditions.
- Careful patient selection is crucial for successful HLTx outcomes in CTD.
Background:
While lung transplantation (LTx) has been effective for connective tissue disease (CTD) patients with pulmonary involvement, outcomes for heart-lung transplantation (HLTx) are less defined. The aim of this study is to evaluate HLTx in CTD patients utilizing the UNOS database.
Methods:
HLTx patients with CTD (HLTx-CTD) were compared to both LTx patients with CTD (LTx-CTD) and HLTx patients with all other indications (HLTx-OI) from 1999 to 2018. Primary outcome was 1- and 5-year graft survival. Secondary outcomes included freedom from first-year rejection and outcomes prior to transplant discharge.
Results:
1143/29 323 adults received first-time HLTx or LTx for CTD. Seventeen were HLTx-CTD (3.3% of total HLTx) and 1126 were LTx-CTD (3.9% of total LTx). There were 492 HLTx-OI. Transplant hemodynamic values including cardiac output, pulmonary capillary wedge pressure, and calculated pulmonary vascular resistance were significantly worse for HLTx-CTD vs LTx-CTD (4.2 vs 5.4 L/min, P = .005; 14 vs 10 mm Hg, P = .009; 439 vs 267 dynes, P = .007, respectively). Cardiac status 1 was more common for HLTx-CTD vs HLTx-OI (94% vs 56%, P < .001). HLTx-CTD 1 and 5-year graft survival was similar compared to LTx-CTD and HLTx-OI.
Conclusion:
HLTx-CTD is a valid option for carefully selected patients with CTD cardiac and pulmonary involvement with similar morbidity and mortality compared to LTx-CTD and HLTx-OI.
Related Concept Videos
Tissue Transplantation
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy V: Interprofessional Care
Bone Marrow Sampling and Transplants
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...

