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Gaballa D, Bezinover D, Kadry Z, Eyster E, Wang M, Northup PG, Stine JG. Development of a Model to Predict Portal Vein Thrombosis in Liver Transplant Candidates: The Portal Vein Thrombosis Risk Index. Liver Transpl 2019; 25:1747-1755. [PMID: 31436367 PMCID: PMC6864229 DOI: 10.1002/lt.25630] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/14/2019] [Indexed: 02/06/2023]
Abstract
Portal vein thrombosis (PVT) is associated with inferior pretransplantation and posttransplantation outcomes. We aimed to create a predictive model to risk stratify transplant candidates for PVT. Data on adult transplants in the United States during the Model for End-Stage Liver Disease (MELD) era through September 2016 were reviewed. We constructed and validated a scoring system composed of routine, readily available clinical information to predict the development of incident PVT at 12 months from transplantation listing. A total of 66,568 liver transplant candidates were dichotomized into 2 groups to construct (n = 34,751) and validate (n = 31,817) a scoring system. In general, the derivation and validation cohorts were clinically similar. Although nonalcoholic steatohepatitis was a significant predictor of incident PVT (hazard ratio, 1.29; 95% confidence interval, 1.08-1.54; P < 0.001), age, MELD score, and moderate-to-severe ascites were also associated with increased risk. African American race was associated with decreased risk. A scoring system (PVT risk index [RI]) of these 5 variables had an area under the curve of 0.71 and 0.70 in both derivation and validation cohorts, respectively. By applying the low cutoff score of 2.6, incident PVT could be accurately excluded (negative predictive value 94%). Using the high cutoff score of 4.6 (positive predictive value 85%), PVT could be diagnosed with high accuracy. The PVT-RI predicts which candidates awaiting lifesaving liver transplantation will and will not develop future PVT. Although this scoring system will require prospective validation, it provides a powerful new tool for the clinician when risk stratifying cirrhosis patients prior to liver transplantation for future PVT development.
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Affiliation(s)
- Daniel Gaballa
- Department of Medicine, The Pennsylvania State University- Milton S. Hershey Medical Center, Hershey PA, USA
| | - Dmitri Bezinover
- Department of Anesthesia, The Pennsylvania State University- Milton S. Hershey Medical Center, Hershey PA, USA
| | - Zakiyah Kadry
- Division of Transplant Surgery, Department of Surgery, The Pennsylvania State University- Milton S. Hershey Medical Center, Hershey PA, USA
| | - Elaine Eyster
- Division of Hematology & Oncology, Department of Medicine, The Pennsylvania State University- Milton S. Hershey Medical Center, Hershey PA, USA
| | - Ming Wang
- Department of Public Health Sciences, The Pennsylvania State University- Milton S. Hershey Medical Center, Hershey PA, USA
| | - Patrick G. Northup
- Center for the Study of Coagulation Disorders in Liver Disease, Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia Health System, Charlottesville VA, USA
| | - Jonathan G. Stine
- Department of Public Health Sciences, The Pennsylvania State University- Milton S. Hershey Medical Center, Hershey PA, USA,Division of Gastroenterology and Hepatology, Department of Medicine, The Pennsylvania State University- Milton S. Hershey Medical Center, Hershey PA, USA
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Hernández-Conde M, Llop E, Fernández-Carrillo C, Perelló C, López-Gómez M, Abad J, Martínez-Porras JL, Fernández-Puga N, Calleja JL. Visceral fat is associated with cirrhotic portal vein thrombosis. Expert Rev Gastroenterol Hepatol 2019; 13:1017-1022. [PMID: 31393183 DOI: 10.1080/17474124.2019.1651644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Background: Central obesity, due to the accumulation of visceral fat(VF), is one of the main risk factors for venous thrombosis. The aim of this study was to determine if VF may be a risk factor for development of portal vein thrombosis(PVT) in cirrhotic patients.Methods: A total of 214 cirrhotic patients at the outpatient clinic were consecutively included, undergoing an anthropometric evaluation, blood tests and bioimpedance.Results: Median MELDscore was10. Prior liver decompensation occurred in 44.9% of patients and 35.6% of patients had large esophageal varices. Mean body mass index was 28.7 Kg/m2 (39.3%were obese) and mean waist circumference(WC) was 103.8 cm. A 7.5% of patients had PVT at the time of inclusion. PVT was more frequent in males(93.8 vs. 68.2%, p = 0.03). Patients with PVT had a higher WC(111.9 vs. 103.2 cm, p = 0.02) and VF (17.1 vs. 14.5, p = 0.04). PVT was also more frequent in patients with prior decompensation (81.3 vs. 41.9%, p < 0.01) and with large esophageal varices(62.5 vs. 33.3%, p = 0.02). In the simplified multivariate analysis, PVT was independently associated with the presence of portal hypertension(OR 13, 95%CI 1.6-108.3, p = 0.02) and VF(OR 1.2, 95%CI 1.03-1.3, p = 0.01).Conclusion: VF was independently associated with PVT in cirrhotic patients. VF may be more reliable than conventional anthropometric measurements for cirrhotic patients.
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Affiliation(s)
- Marta Hernández-Conde
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - Elba Llop
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - Carlos Fernández-Carrillo
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - Christie Perelló
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - Marta López-Gómez
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - Javier Abad
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - José Luis Martínez-Porras
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - Natalia Fernández-Puga
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
| | - José Luis Calleja
- Gastroenterology, Liver Unit, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, CIBERehd, Madrid, Spain
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Abstract
Non-tumoral portal vein thrombosis (PVT) remains a highly relevant topic in the field of hepatology and liver transplantation with much surrounding controversy. Although multiple studies have shown that PVT is associated with adverse outcomes with increased morbidity and mortality rates, others have not reported the same clinical impact of PVT, arguing rather that incident PVT reflects worsening portal hypertension and the natural history of the disease. Despite this uncertainly, PVT is a dilemma facing the clinician on a daily basis often requiring a multidisciplinary team-based approach between hepatologists, transplant surgeons, interventional radiologists and hematologists. In this review, the authors provide a summary of the evidence supporting best clinical practices in the management of non-tumoral PVT in patients with cirrhosis.
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Affiliation(s)
- Jonathan G Stine
- Division of Gastroenterology and Hepatology, Department of Medicine, The Pennsylvania State University Milton S. Hershey Medical Center, 500 University Drive, Hershey, PA, 17033, USA.
- Department of Public Health Sciences, The Pennsylvania State University Milton S. Hershey Medical Center, Hershey, PA, USA.
| | - Patrick G Northup
- Department of Medicine, Center for the Study of Coagulation Disorders in Liver Disease, Division of Gastroenterology and Hepatology, University of Virginia, Charlottesville, VA, USA
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