Abstract
Background
Porto-sinusoidal vascular disease (PSVD) is a novel nomenclature to describe non-cirrhotic portal hypertension and characteristic histology without portal vein thrombosis (PVT). It is a more inclusive definition than the previously well-recognized entity idiopathic non-cirrhotic portal hypertension. There is a paucity of data on PSVD patients.
Methods
A total of 33 patients diagnosed with PSVD and portal hypertension (PH) between 2005 and 2021 were included. Data were retrieved from electronic medical record system and analyzed.
Results
Of the 33 patients, 6 (18%) occurred in post-transplant allograft liver. After a median follow-up of 96 months (interquartile range, IQR [52, 139]), 14 deaths occurred (42%), 4 directly related to decompensated liver disease. The Kaplan–Meier survival estimates at 1, 5, and 10 years were 94%, 87% and 58%. PVT occurred in 10 patients (30%). The Nelson–Aalen cumulative risk estimate for PVT at 1, 5 and 10 years were 16%, 25% and 48%. The median model for end-stage liver disease and Child–Pugh score at initial presentation were 8 (IQR [7–12]) and 5 [5–6], and increased to 13 [8, 18] and 7 [5, 8], respectively, at the end of follow-up. Of the 11 patients who presented with splenomegaly and no specific sign of PH, 7 (64%) developed varices and 3 (27%) ascites at a median follow-up of 100 months.
Conclusions
PSVD with PH is not a benign entity. Mortality, PVT and hepatic decompensation are common. Patients with PSVD must be closely monitored, including those who only have non-specific clinical signs (e.g., splenomegaly) of PH.
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Data availability
The data that support the findings of this study are available on request from the corresponding author, A.M. The data are not publicly available due to information that could compromise the privacy of research participants.
Abbreviations
- PSVD:
-
Porto-sinusoidal vascular disease
- PVT:
-
Portal vein thrombosis
- PH:
-
Portal hypertension
- INCPH:
-
Idiopathic non-cirrhotic portal hypertension
- NCPH:
-
Non-cirrhotic portal hypertension
- EGD:
-
Esophagogastroduodenoscopy
- TIPS:
-
Transjugular intrahepatic portal systemic shunt
- HVPG:
-
Hepatic venous pressure gradient
- NRH:
-
Nodulr regenerative hyperplasia
- OPV:
-
Obliterative portal venopathy
- MELD-Na:
-
Model for end-stage liver disease-sodium score
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Acknowledgements
Dr. Michael Voigt contributed to the conceptualization of the study and initiated the cohort collection.
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XZ, conceptualization of study, data analysis, manuscript, statistical analysis, graphics. KD and AG data collection, manuscript. A.M., conceptualization of study, data interpretation, critical review of manuscript.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of University of Iowa (IRB 202012058).
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Zhang, X., Durham, K.M., Garza, A.A. et al. Portal vein thrombosis, hepatic decompensation, and survival in patients with porto-sinusoidal vascular disease and portal hypertension. J Gastroenterol 58, 268–276 (2023). https://doi.org/10.1007/s00535-023-01957-0
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DOI: https://doi.org/10.1007/s00535-023-01957-0