Abstract
Purpose
Proximal splenic artery embolization (pSAE) has been advocated as a valuable tool to ameliorate portal hyper-perfusion (PHP). The purpose of this study was to determine the safety and efficacy of pSAE to treat refractory ascites (RA) and/or refractory hydrothorax (RH) in the setting of PHP post-liver transplant.
Material and Methods
A total of 30 patients who underwent pSAE for RA and/or RH after liver transplantation (LT) between January 2007 and December 2017 were analyzed retrospectively. The patients were divided into groups according to the time frame from pSAE to clinical resolution in order to identify predictors of RA/RH response to the procedure.
Results
Twenty-four (80%) patients responded to pSAE within three months, whereas 6 (20%) still required additional treatments for RA/RH at three months post-pSAE. In all cases clinical symptoms resolved within six months. Complications after pSAE were as follows: 2 cases of splenic infarction (6.6%), one case of post-splenic embolization syndrome (3.3%), one case of hepatic artery thrombosis (3.3%) and one case of portal vein (PV) thrombosis (3.3%). Increased intraoperative PV flow volume and increased pre-pSAE PV velocity, as well as higher estimated glomerular filtration rate were associated with early RA/RH resolution.
Conclusion
pSAE is safe and effective in treating RA and RH due to PHP after LT. This study suggests that clinical parameters indicating more severe PHP and better kidney function are possible predictors for early response to pSAE.
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Abbreviations
- eGFR:
-
Estimated glomerular filtration rate
- HABR:
-
Hepatic artery buffer response
- LT:
-
Liver transplantation
- MELD:
-
Model for end stage liver disease
- PHP:
-
Portal hyper-perfusion
- pSAE:
-
Proximal splenic artery embolization
- PV:
-
Portal vein
- RA:
-
Refractory ascites
- RH:
-
Refractory hydrothorax
- US:
-
Ultrasound
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D’Amico, G., Partovi, S., Del Prete, L. et al. Proximal Splenic Artery Embolization for Refractory Ascites and Hydrothorax Post-Liver Transplant. Cardiovasc Intervent Radiol 46, 470–479 (2023). https://doi.org/10.1007/s00270-023-03376-3
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DOI: https://doi.org/10.1007/s00270-023-03376-3