Abstract
Background
Candidates for orthotopic liver transplantation (OLT) often have porto-pulmonary hypertension (PPHTN) with pulmonary arterial hypertension (PAH). Poor outcomes of PPHTN contraindicate OLT. There are no guidelines for living-donor liver transplantation (LDLT) in PPHTN patients.
Methods
We present our experiences of LDLT in six patients with moderate or severe PPHTN, along with our institutional guidelines. Three had liver cirrhosis and three were non-cirrhotic. Catheterization studies were undertaken before, during and after LDLT, and the mean pulmonary arterial pressure (mPAP), cardiac output (CO), pulmonary vascular resistance and total peripheral resistance (TPR) were monitored.
Results
The results showed significant differences in CO and TPR between cirrhotic and non-cirrhotic patients before, during and after LDLT. Cirrhotic patients showed systemic hyperdynamic state. Two cirrhotic patients showed poor responses to pre-transplant treatment, and continued to have increased PAH and poor clinical courses after LDLT. LDLT has an advantage of flexible timing of LT. Currently in our institution, PPHTN patients with mPAP <40 mmHg are registered for LDLT after treatment and catheterization. However, LDLT is performed when mPAP is ≤35 mmHg, leading to improved outcomes.
Conclusion
PPHTN patients with well-controlled PAH, or secondary PAH resulting from porto-systemic shunts, may be appropriate candidates for LDLT after careful considerations.
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Abbreviations
- ACR:
-
Acute cellular rejection
- AM:
-
Abernethy malformation
- AVCT:
-
Acute volume challenge test
- BSA:
-
Body surface area
- BV:
-
Blood volume
- CBA:
-
Congenital biliary atresia
- CI:
-
Cardiac index
- CO:
-
Cardiac output
- DDLT:
-
Deceased-donor liver transplantation
- ET-1:
-
Endothelin-1
- GRWR:
-
Graft-to-recipient weight ratio
- HPS:
-
Hepato-pulmonary syndrome
- ICU:
-
Intensive care unit
- LDLT:
-
Living-donor liver transplantation
- LNB:
-
Liver needle biopsy
- NO:
-
Nitric oxide
- OLT:
-
Orthotopic liver transplantation
- MELD:
-
Model for end-stage liver disease
- mAP:
-
Mean arterial pressure
- mPAP:
-
Mean pulmonary arterial pressure
- PELD:
-
Pediatric end-stage liver disease
- PAH:
-
Pulmonary arterial hypertension
- PCWP:
-
Pulmonary capillary wedge pressure
- PGI2 :
-
Prostaglandin I2
- POD:
-
Postoperative day
- PPHTN:
-
Porto-pulmonary hypertension
- PVR:
-
Pulmonary vascular resistance
- RV:
-
Right ventricle
- SPT:
-
Steroid pulse therapy
- TPR:
-
Total peripheral resistance
- UNOS:
-
United Network for Organ Sharing
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Acknowledgments
We are grateful to Masafumi Ueno (Department of Cardiology, University of Florida College of Medicine, Shands Jacksonville Medical Center, FL 32209, USA). This work was partially supported by a grant to T. Hori from the Uehara Memorial Foundation (no. 200940051, Tokyo 171-0033, Japan). The authors have no financial conflicts of interest to declare.
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Ogawa, E., Hori, T., Doi, H. et al. Living-donor liver transplantation for moderate or severe porto-pulmonary hypertension accompanied by pulmonary arterial hypertension: a single-centre experience over 2 decades in Japan. J Hepatobiliary Pancreat Sci 19, 638–649 (2012). https://doi.org/10.1007/s00534-011-0453-y
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DOI: https://doi.org/10.1007/s00534-011-0453-y