Abstract
Patients with single ventricle (SV) heart defects have two primary surgical options for superior cavopulmonary connection (SCPC): bidirectional Glenn (BDG) and hemi-Fontan (HF). Outcomes based on type of SCPC have not been assessed in a multi-center cohort. This retrospective cohort study uses the Single Ventricle Reconstruction (SVR) Trial public use dataset. Infants who survived to SCPC were evaluated through 1 year of age, based on type of SCPC. The primary outcome was transplant-free survival at 1 year. The cohort included 343 patients undergoing SCPC across 15 centers in North America; 250 (73%) underwent the BDG. There was no difference between the groups in pre-SCPC clinical characteristics. Cardiopulmonary bypass times were longer [99 min (IQR 76, 126) vs 81 min (IQR 59, 116), p < 0.001] and use of deep hypothermic circulatory arrest (DHCA) more prevalent (51% vs 19%, p < 0.001) with HF. Patients who underwent HF had a higher likelihood of experiencing more than one post-operative complication (54% vs 41%, p = 0.05). There were no other differences including the rate of post-operative interventional cardiac catheterizations, length of stay, or survival at discharge, and there was no difference in transplant-free survival out to 1 year of age. Mortality after SCPC is low and there is no difference in mortality at 1 year of age based on type of SCPC. Differences in support time and post-operative complications support the preferential use of the BDG, but additional longitudinal follow-up is necessary to understand whether these differences have implications for long-term outcomes.
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Abbreviations
- BDG:
-
Bidirectional Glenn shunt
- CPB:
-
Cardiopulmonary bypass
- DHCA:
-
Deep hypothermic circulatory arrest
- HF:
-
Hemi-Fontan procedure
- HLHS:
-
Hypoplastic left heart syndrome
- LOS:
-
Hospital length of stay
- PA:
-
Pulmonary artery
- RA:
-
Right atrium
- RV:
-
Right ventricle
- SCPC:
-
Superior cavopulmonary connection
- SV:
-
Single ventricle heart disease
- SVC:
-
Superior vena cava
- SVR:
-
Single ventricle reconstruction trial
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Acknowledgements
This work was supported in part by the Cardiac Center Clinical Research Core at the Children’s Hospital of Philadelphia. The NIH/NHLBI Pediatric Heart Network Single Ventricle Reconstruction Trial dataset was used in preparation of this work. Data were downloaded from https://www.pediatric heartnetwork.org/ForResearchers/PHNPublicUseDatasets /SingleVentricleReconstruction Trial.aspx. The authors acknowledge all those who have contributed to the Pediatric Heart Network.
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Edelson, J.B., Ravishankar, C., Griffis, H. et al. A Comparison of Bidirectional Glenn vs. Hemi-Fontan Procedure: An Analysis of the Single Ventricle Reconstruction Trial Public Use Dataset. Pediatr Cardiol 41, 1166–1172 (2020). https://doi.org/10.1007/s00246-020-02371-6
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DOI: https://doi.org/10.1007/s00246-020-02371-6