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Possick S, Khungar V, Deshpande R. Cardiac evaluation of the liver transplant candidate. Curr Opin Organ Transplant 2024; 29:299-304. [PMID: 37995156 DOI: 10.1097/mot.0000000000001122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
PURPOSE OF REVIEW This review aims to summarize recent changes in the cardiac evaluation of adult liver transplant candidates. Over the last several years, there have been significant advances in the use of coronary computed tomography angiography (CCTA) with and without fractional flow reserve (FFR) and increasingly widespread availability of coronary calcium scoring for risk stratification for obstructive coronary artery disease. This has led to novel strategies for risk stratification in cirrhotic patients being considered for liver transplant and an updated American Heart Association (AHA) position paper on the evaluation of liver and kidney transplant candidates. The diagnosis of cirrhotic cardiomyopathy has been refined. These new diagnostic criteria require that specific echocardiographic parameters are evaluated in all patients. The definition of pulmonary hypertension on echocardiography has been altered and no longer utilizes right atrium (RA) pressure estimates based on inferior vena cava (IVC) size and collapse. This provides more volume neutral estimates of pulmonary pressure. RECENT FINDINGS Although CCTA has outstanding negative predictive value, false positive results are not uncommon and often lead to further testing. Revised diagnostic criteria for cirrhotic cardiomyopathy improve risk stratification for peri-operative volume overload and outcomes. Refined pulmonary hypertension criteria provide improved guidance for right heart catheterization (RHC) and referral to subspecialists. There are emerging data regarding the safety and efficacy of TAVR for severe aortic stenosis in cirrhotic patients. SUMMARY Increased utilization of noninvasive testing, including CCTA and/or coronary calcium scoring, can improve the negative predictive value of testing for obstructive coronary artery disease and potentially reduce reliance on coronary angiography. Application of the 2020 criteria for cirrhotic cardiomyopathy will improve systolic and diastolic function assessment and subsequent perioperative risk stratification. The use of global strain scores is emphasized, as it provides important information beyond ejection fraction and diastolic parameters. A standardized one-parameter echo cut-off for elevated pulmonary pressures simplifies both evaluation and follow-up. Innovative transcutaneous techniques for valvular stenosis and regurgitation offer new options for patients at prohibitive surgical risk.
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Affiliation(s)
| | - Vandana Khungar
- Yale University School of Medicine, Transplant Hepatology, Hepatology, Gastroenterology
| | - Ranjit Deshpande
- Department of Anesthesia, Yale University School of Medicine, New Haven, Connecticut, USA
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Liu Y, Meng F, Ma J, Zhang W, Yu J, Zhou Y, Zuo W, Yan Z, Pan C, Luo J. Unveiling the impact of cirrhotic cardiomyopathy on portal hemodynamics and survival after transjugular intrahepatic portosystemic shunt: a prospective study. Abdom Radiol (NY) 2024:10.1007/s00261-024-04446-x. [PMID: 38900326 DOI: 10.1007/s00261-024-04446-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/31/2024] [Accepted: 06/07/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND AND AIMS The placement of Transjugular intrahepatic portosystemic shunt (TIPS) results in a sudden increase in central circulating blood volume, which requires proper regulation of the cardiovascular system. We aimed to investigate the impact of TIPS on cirrhotic cardiomyopathy (CCM). METHOD A consecutive case series of patients with cirrhosis who underwent TIPS were evaluated by echocardiography and pressure measurements before, immediately after TIPS and 2-4 days later (delayed). Furthermore, all patients underwent a one-year follow-up. RESULTS In this study, 107 patients were enrolled, 38 (35.5%) with CCM. Echocardiography revealed an increase in postoperative left ventricular filling pressure accompanied by an elevation in left ventricular ejection fraction (LVEF). However, patients in the CCM group exhibited lower LVEF and mean arterial pressure (MAP) compared to the non-CCM group. Post-TIPS, CCM patients showed increased right atrium pressure (RAP) that normalized within 2-4 days, whereas non-CCM patients had lower RAP than baseline. Compared to patient without CCM, CCM patients revealed lower immediate (16.7 ± 4.4 vs. 18.9 ± 4.8, p = 0.022) and delayed 15.9 ± 3.7 vs. 17.7 ± 5.3, p = 0.044) portal vein pressures (PVP) and portal pressure gradients (PPG) (7.7 ± 3.4 vs. 9.2 ± 3.6, p = 0.032 and 10.1 ± 3.1 vs. 12.3 ± 4.9, p = 0.013). The 1-year mortality rates were 13.2% for CCM patients and 4.3% for non-CCM patients (log-rank test, p = 0.093), with MELD score, and preoperative RAP significantly associated with the mortality. CONCLUSION Cirrhotic patients with CCM exhibit lower PVP and PPG immediately after TIPS and 2-4 days later, without significantly impacting one-year survival outcomes.
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Affiliation(s)
- Yaozu Liu
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, NO. 180 Fenglin Road, 200032, China
- National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fangmin Meng
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jingqin Ma
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, NO. 180 Fenglin Road, 200032, China
- National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wen Zhang
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, NO. 180 Fenglin Road, 200032, China
- National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jiaze Yu
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, NO. 180 Fenglin Road, 200032, China
- National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yongjie Zhou
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, NO. 180 Fenglin Road, 200032, China
- National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wuxu Zuo
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhiping Yan
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, NO. 180 Fenglin Road, 200032, China
- National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
- Center for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University, Shanghai, China
| | - Cuizhen Pan
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China.
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Jianjun Luo
- Shanghai Institution of Medical Imaging, Fudan University, Shanghai, China.
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, NO. 180 Fenglin Road, 200032, China.
- National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
- Center for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University, Shanghai, China.
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Yang M, Qin F, Zhou Y, Yao Y, Lu Z, Chen W. Evaluation and clinical significance of contrast-enhanced ultrasound on changes in liver blood flow perfusion after TIPS surgery. Medicine (Baltimore) 2024; 103:e37899. [PMID: 38669377 PMCID: PMC11049695 DOI: 10.1097/md.0000000000037899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
To investigate the clinical value of contrast-enhanced ultrasound in the prediction of hepatic encephalopathy (HE) in patients with hepatitis B cirrhosis after intrahepatic portal-systemic shunt via jugular vein. In this retrospective study, we collected data from 75 patients with hepatitis B, cirrhosis, and portal hypertension who underwent jugular intrahepatic portosystemic shunt from February 2019 to February 2022. The diagnostic instrument used was the TOSHIBA Aplio500 color Doppler ultrasound with contrast-enhanced ultrasound capabilities. The trial group comprised 20 patients with HE within 3 months postsurgery, while the control group (CG) included 55 patients without HE within the same postoperative period. All patients underwent various examinations before and within 48 hours after surgery, including observation of liver and spleen size and stent position, as well as assessment of blood flow direction in portal and hepatic veins. Subsequently, contrast-enhanced ultrasound was employed to examine and observe perfusion changes of contrast agents in hepatic veins, hepatic arteries, and portal veins (PV). Changes in PV pressure gradient, intrahepatic, and stent blood flow perfusion (BFP) were explored in both postoperative trials and CGs. The trial group exhibited higher BFP volume, PV pressure gradient difference, and percentage decrease compared to the CG. A weak positive correlation was observed between blood flow within the liver stent and PV pressure gradient difference, as well as the percentage decrease in PV pressure gradient. The correlation coefficient between blood flowing perfusion volume within the stent and the difference in PV pressure gradient was R = 0.415 (P = .000). The correlating coefficient between BFP amount within the stent and the percentage decrease in PV pressure gradient was R = 0.261 (P = .027). The area under the receiver operating characteristic curve for stent perfusion volume, difference in PV pressure gradient, and percentage decrease in PV pressure gradient was 0.691, 0.759, and 0.742, respectively. An increase in PV pressure gradient accelerates blood flow within the stent, predisposing to HE. Changes in hepatic BFP following transjugular intrahepatic portosystemic shunt can effectively predict the occurrence of HE, demonstrating significant clinical relevance.
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Affiliation(s)
- Meirong Yang
- Department of Infectious Diseases, Wuxi Fifth People’s Hospital, Wuxi, China
| | - Fei Qin
- Department of Ultrasound, Wuxi Fifth People’s Hospital, Wuxi, China
| | - Yan Zhou
- Department of Interventional, Wuxi Fifth People‘s Hospital, Wuxi, China
| | - Yueping Yao
- Department of Infectious Diseases, Wuxi Fifth People’s Hospital, Wuxi, China
| | - Zhonghua Lu
- Department of Infectious Diseases, Wuxi Fifth People’s Hospital, Wuxi, China
| | - Wei Chen
- Department of Interventional, Wuxi Fifth People‘s Hospital, Wuxi, China
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Dimitroglou Y, Aggeli C, Alexopoulou A, Tsartsalis D, Patsourakos D, Koukos M, Tousoulis D, Tsioufis K. The Contemporary Role of Speckle Tracking Echocardiography in Cirrhotic Cardiomyopathy. Life (Basel) 2024; 14:179. [PMID: 38398688 PMCID: PMC10890501 DOI: 10.3390/life14020179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/15/2024] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
Cirrhotic cardiomyopathy (CCM) is characterized by elevated cardiac output at rest, an inability to further increase contractility under stress, and diastolic dysfunction. The diagnosis of CCM is crucial as it can lead to complications during liver transplantation. However, its recognition poses challenges with conventional echocardiography techniques. Speckle tracking echocardiography (STE), particularly global longitudinal strain (GLS), is a novel index that enhances the diagnostic efficacy of echocardiography for both ischemic and non-ischemic cardiomyopathies. GLS proves more sensitive in identifying early systolic dysfunction and is also influenced by advanced diastolic dysfunction. Consequently, there is an expanding scope for GLS utilization in cirrhotic cases, with newly updated diagnostic criteria for CCM incorporating GLS. Specifically, systolic dysfunction is now defined as either a left ventricular ejection fraction below 50% or an absolute GLS below 18%. However, conflicting data on GLS alterations in liver cirrhosis patients persist, as many individuals with advanced disease and a poor prognosis exhibit a hyperdynamic state with preserved or increased GLS. Consequently, the presence of CCM, according to the updated criteria, does not exhibit a significant association-in the majority of studies-with the severity of liver disease and prognosis. Furthermore, information on other indices measured with STE, such as left atrial and right ventricular strain, is promising but currently limited. This review aims to offer a critical assessment of the existing evidence concerning the application of STE in patients with liver cirrhosis.
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Affiliation(s)
- Yannis Dimitroglou
- First Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.); (D.P.); (M.K.); (K.T.)
| | - Constantina Aggeli
- First Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.); (D.P.); (M.K.); (K.T.)
| | - Alexandra Alexopoulou
- Second Department of Medicine & Research Laboratory, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece;
| | - Dimitrios Tsartsalis
- First Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.); (D.P.); (M.K.); (K.T.)
| | - Dimitrios Patsourakos
- First Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.); (D.P.); (M.K.); (K.T.)
| | - Markos Koukos
- First Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.); (D.P.); (M.K.); (K.T.)
| | - Dimitris Tousoulis
- First Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.); (D.P.); (M.K.); (K.T.)
| | - Konstantinos Tsioufis
- First Department of Cardiology, Medical School, National and Kapodistrian University of Athens, Hippokration General Hospital, 115 27 Athens, Greece; (C.A.); (D.T.); (D.P.); (M.K.); (K.T.)
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Carroll A, Boike JR. TIPS: indications, Contraindications, and Evaluation. Curr Gastroenterol Rep 2023; 25:232-241. [PMID: 37603109 DOI: 10.1007/s11894-023-00884-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2023] [Indexed: 08/22/2023]
Abstract
PURPOSE OF REVIEW This review summarizes the current and emerging indications, contraindications, and evaluation for TIPS. In the last three decades of use, there have been substantial changes and progress in this field, including the use of controlled-expansion, covered stents, which has broadened the clinical uses of TIPS. RECENT FINDINGS Recent findings have rapidly expanded the indications for TIPS, including emerging uses in hepatorenal syndrome, hepatopulmonary syndrome and before abdominal surgery. The widespread use of controlled-expansion, covered stents has decreased rates of post-TIPS hepatic encephalopathy, opening TIPS to a larger patient population. Overall, with newer stent technology and more research in this area, the clinical utility and potential of TIPS has rapidly expanded. Going forward, a renewed focus on randomized-control trials and long-term outcomes will be a crucial element to selecting appropriate TIPS recipients and recommending emerging indications for this procedure.
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Affiliation(s)
- Allison Carroll
- Department of Medicine, Division of Gastroenterology & Hepatology, Northwestern University Feinberg School of Medicine, 676 N. St. Clair, Suite 1900, Chicago, IL, 60611, USA
- Feinberg School of Medicine, Northwestern University, Chicago, USA
| | - Justin R Boike
- Department of Medicine, Division of Gastroenterology & Hepatology, Northwestern University Feinberg School of Medicine, 676 N. St. Clair, Suite 1900, Chicago, IL, 60611, USA.
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Wong YJ, Ho WLD, Abraldes JG. Pre-emptive TIPSS in Acute Variceal Bleeding: Current Status, Controversies, and Future Directions. J Clin Transl Hepatol 2022; 10:1223-1228. [PMID: 36381087 PMCID: PMC9634770 DOI: 10.14218/jcth.2022.00240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/28/2022] [Accepted: 07/11/2022] [Indexed: 12/04/2022] Open
Abstract
Acute variceal bleeding (AVB) is associated with significant short-term morbidity and mortality. Pre-emptive transjugular intrahepatic portosystemic shunt (p-TIPSS) is recommended to prevent rebleeding in AVB patients with a high risk of rebleeding. Despite the benefit of preventing rebleeding and de-novo ascites, the uptake of p-TIPSS remains low because logistic challenges in the real-world setting. In this review, we summarize the current evidence and controversies on p-TIPSS including patient selection for p-TIPSS, particularly in the setting of NASH cirrhosis and acute-on-chronic liver failure, the role of sarcopenia, renal impairment in the setting of p-TIPSS. Finally, we summarize both pharmacological and nonpharmacological strategies to optimize outcomes in patients undergoing p-TIPSS.
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Affiliation(s)
- Yu Jun Wong
- Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore
- Duke-NUS Medical School, Singapore
- Correspondence to: Wong Yu Jun, Department of Gastroenterology & Hepatology, Changi General Hospital, 2, Simei Street 3; Duke-NUS Medical School, 8 College Road, 169857, Singapore. ORCID: https://orcid.org/0000-0002-0727-1183. Tel/Fax: +65-67888833, E-mail:
| | - Wei Ling Danielle Ho
- Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore
| | - Juan G. Abraldes
- Division of Gastroenterology, University of Alberta, Edmonton, Canada
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7
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Impact of Cirrhotic Cardiomyopathy Diagnosed According to Different Criteria on Patients with Cirrhosis Awaiting Liver Transplantation: A Retrospective Cohort Study. Dig Dis Sci 2022; 67:5315-5326. [PMID: 35150344 DOI: 10.1007/s10620-022-07412-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/23/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Recently, the Cirrhotic Cardiomyopathy Consortium (Consortium) proposed criteria to replace the World Congress of Gastroenterology (WGO) criteria for cirrhotic cardiomyopathy (CCM) using contemporary echocardiography parameters. We assessed the impact of substituting WGO by Consortium criteria on the frequency of diagnosis and clinical outcomes in patients with cirrhosis awaiting liver transplantation (LT). METHODS Consecutive adults with cirrhosis approved for LT with echocardiography evaluation from January 2014 to December 2016 were screened. Patients with structural heart diseases were excluded. Two primary outcomes were: (1) frequency of CCM; (2) association of CCM with pre-transplant mortality. The secondary outcomes were pre-LT complications of acute kidney injury (AKI) and/or hepatic encephalopathy (HE), and post-LT mortality. RESULTS Of 386 patients screened, 278 were included. 238 (85.6%) and 208 (74.8%) patients met Consortium and WGO criteria, respectively; 180 (64.7%) patients fulfilled both the criteria, while 12 (4.3%) patients had no evidence of CCM by either criterion. Pre-LT mortality rates in Consortium-CCM group were similar to the other groups (19.3% vs 20.2% vs 25.0%). The patients with advanced diastolic dysfunction (DD) per Consortium-CCM criteria had higher mortality than the other groups. The rates of pre-LT AKI/HE rates and post-LT mortality were similar in Consortium-CCM and WGO-CCM groups. CONCLUSION The Consortium criteria do not impact the prevalence of CCM compared to WGO criteria and have similar predictive accuracy. Presence of advanced DD per the Consortium criteria increases the risk of pre-LT mortality and complications of AKI/HE. The patients with advanced DD could benefit from further monitoring and treatment.
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Boike JR, Thornburg BG, Asrani SK, Fallon MB, Fortune BE, Izzy MJ, Verna EC, Abraldes JG, Allegretti AS, Bajaj JS, Biggins SW, Darcy MD, Farr MA, Farsad K, Garcia-Tsao G, Hall SA, Jadlowiec CC, Krowka MJ, Laberge J, Lee EW, Mulligan DC, Nadim MK, Northup PG, Salem R, Shatzel JJ, Shaw CJ, Simonetto DA, Susman J, Kolli KP, VanWagner LB. North American Practice-Based Recommendations for Transjugular Intrahepatic Portosystemic Shunts in Portal Hypertension. Clin Gastroenterol Hepatol 2022; 20:1636-1662.e36. [PMID: 34274511 PMCID: PMC8760361 DOI: 10.1016/j.cgh.2021.07.018] [Citation(s) in RCA: 81] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/01/2021] [Accepted: 07/13/2021] [Indexed: 02/07/2023]
Abstract
Complications of portal hypertension, including ascites, gastrointestinal bleeding, hepatic hydrothorax, and hepatic encephalopathy, are associated with significant morbidity and mortality. Despite few high-quality randomized controlled trials to guide therapeutic decisions, transjugular intrahepatic portosystemic shunt (TIPS) creation has emerged as a crucial therapeutic option to treat complications of portal hypertension. In North America, the decision to perform TIPS involves gastroenterologists, hepatologists, and interventional radiologists, but TIPS creation is performed by interventional radiologists. This is in contrast to other parts of the world where TIPS creation is performed primarily by hepatologists. Thus, the successful use of TIPS in North America is dependent on a multidisciplinary approach and technical expertise, so as to optimize outcomes. Recently, new procedural techniques, TIPS stent technology, and indications for TIPS have emerged. As a result, practices and outcomes vary greatly across institutions and significant knowledge gaps exist. In this consensus statement, the Advancing Liver Therapeutic Approaches group critically reviews the application of TIPS in the management of portal hypertension. Advancing Liver Therapeutic Approaches convened a multidisciplinary group of North American experts from hepatology, interventional radiology, transplant surgery, nephrology, cardiology, pulmonology, and hematology to critically review existing literature and develop practice-based recommendations for the use of TIPS in patients with any cause of portal hypertension in terms of candidate selection, procedural best practices and, post-TIPS management; and to develop areas of consensus for TIPS indications and the prevention of complications. Finally, future research directions are identified related to TIPS for the management of portal hypertension.
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Affiliation(s)
- Justin R. Boike
- Department of Medicine, Division of Gastroenterology & Hepatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Bartley G. Thornburg
- Department of Radiology, Division of Vascular and Interventional Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | - Michael B. Fallon
- Department of Medicine, Division of Gastroenterology and Hepatology, Banner - University Medical Center Phoenix, Phoenix, AZ, USA
| | - Brett E. Fortune
- Department of Medicine, Division of Gastroenterology and Hepatology, Weill Cornell Medical College, New York, NY, USA
| | - Manhal J. Izzy
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Elizabeth C. Verna
- Department of Medicine, Division of Digestive and Liver Diseases, Columbia University College of Physicians & Surgeons, New York, NY, USA
| | - Juan G. Abraldes
- Division of Gastroenterology (Liver Unit), University of Alberta, Edmonton, AB, Canada
| | - Andrew S. Allegretti
- Department of Medicine, Division of Nephrology, Massachusetts General Hospital, Boston, MA, USA
| | - Jasmohan S. Bajaj
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, Virginia Commonwealth University and Central Virginia Veterans Healthcare System, Richmond, VA, USA
| | - Scott W. Biggins
- Department of Medicine, Division of Gastroenterology & Hepatology, University of Washington Medical Center, Seattle, WA, USA
| | - Michael D. Darcy
- Department of Radiology, Division of Interventional Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Maryjane A. Farr
- Department of Medicine, Division of Cardiology, Columbia University College of Physicians & Surgeons, New York, NY, USA
| | - Khashayar Farsad
- Dotter Department of Interventional Radiology, Oregon Health and Science University, Portland, OR, USA
| | - Guadalupe Garcia-Tsao
- Department of Digestive Diseases, Yale University, Yale University School of Medicine, and VA-CT Healthcare System, CT, USA
| | - Shelley A. Hall
- Department of Internal Medicine, Division of Cardiology, Baylor University Medical Center, Dallas, TX, USA
| | - Caroline C. Jadlowiec
- Department of Surgery, Division of Transplant Surgery, Mayo Clinic, Phoenix, AZ, USA
| | - Michael J. Krowka
- Department of Pulmonary and Critical Care Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Jeanne Laberge
- Department of Radiology and Biomedical Imaging, Division of Interventional Radiology, University of California San Francisco, San Francisco, CA, USA
| | - Edward W. Lee
- Department of Radiology, Division of Interventional Radiology, University of California-Los Angeles David Geffen School of Medicine, Los Angeles, CA, USA
| | - David C. Mulligan
- Department of Surgery, Division of Transplantation, Yale University School of Medicine, New Haven, CT, USA
| | - Mitra K. Nadim
- Department of Medicine, Division of Nephrology and Hypertension, University of Southern California, Los Angeles, California, USA
| | - Patrick G. Northup
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Virginia, Charlottesville, VA, USA
| | - Riad Salem
- Department of Radiology, Division of Vascular and Interventional Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Joseph J. Shatzel
- Division of Hematology and Medical Oncology, Oregon Health and Science University, Portland, OR, USA
| | - Cathryn J. Shaw
- Department of Radiology, Division of Interventional Radiology, Baylor University Medical Center, Dallas, TX, USA
| | - Douglas A. Simonetto
- Department of Physiology, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Jonathan Susman
- Department of Radiology, Division of Interventional Radiology, Columbia University Irving Medical Center, New York, NY, USA
| | - K. Pallav Kolli
- Department of Radiology and Biomedical Imaging, Division of Interventional Radiology, University of California San Francisco, San Francisco, CA, USA
| | - Lisa B. VanWagner
- Department of Medicine, Division of Gastroenterology & Hepatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA,Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA,Address for correspondence: Lisa B. VanWagner MD MSc FAST FAHA, Assistant Professor of Medicine and Preventive Medicine, Divisions of Gastroenterology & Hepatology and Epidemiology, Northwestern University Feinberg School of Medicine, 676 N. St Clair St - Suite 1400, Chicago, Illinois 60611 USA, Phone: 312 695 1632, Fax: 312 695 0036,
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Bettinger D, Thimme R, Schultheiß M. Implantation of transjugular intrahepatic portosystemic shunt (TIPS): indication and patient selection. Curr Opin Gastroenterol 2022; 38:221-229. [PMID: 35471813 DOI: 10.1097/mog.0000000000000831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
PURPOSE OF REVIEW This review summarizes indications and contraindications for implantation of transjugular intrahepatic portosystemic shunt (TIPS). Further, patient selection strategies are discussed. RECENT FINDINGS TIPS implantation is a highly effective treatment for portal hypertension. Main indications are ascites and variceal bleeding in patients with liver cirrhosis. There is growing evidence that early TIPS implantation after variceal bleeding is associated with an improved survival (preemptive TIPS).Preliminary data also suggest that an analogous concept of early TIPS implantation may be beneficial for patients with ascites. Further, well-selected patients with acute or chronic nonmalignant portal vein thrombosis can be effectively treated with TIPS implantation. In contrast, there is generally no recommendation for TIPS implantation in patients with hepatic veno-occlusive disease, noncirrhotic portal hypertension or prior before surgery to avoid complications of portal hypertension. Apart from evidence-based patient selection, the newly developed FIPS score can be an objective component in decision-making. SUMMARY Consideration of well-established indications and contraindications for TIPS implantation as well as concise patient selection criteria are essential for an optimal outcome after TIPS implantation.
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Affiliation(s)
- Dominik Bettinger
- Department of Medicine II, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Development of the AI-Cirrhosis-ECG Score: An Electrocardiogram-Based Deep Learning Model in Cirrhosis. Am J Gastroenterol 2022; 117:424-432. [PMID: 35029163 PMCID: PMC9727935 DOI: 10.14309/ajg.0000000000001617] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 10/27/2021] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Cirrhosis is associated with cardiac dysfunction and distinct electrocardiogram (ECG) abnormalities. This study aimed to develop a proof-of-concept deep learning-based artificial intelligence (AI) model that could detect cirrhosis-related signals on ECG and generate an AI-Cirrhosis-ECG (ACE) score that would correlate with disease severity. METHODS A review of Mayo Clinic's electronic health records identified 5,212 patients with advanced cirrhosis ≥18 years who underwent liver transplantation at the 3 Mayo Clinic transplant centers between 1988 and 2019. The patients were matched by age and sex in a 1:4 ratio to controls without liver disease and then divided into training, validation, and test sets using a 70%-10%-20% split. The primary outcome was the performance of the model in distinguishing patients with cirrhosis from controls using their ECGs. In addition, the association between the ACE score and the severity of patients' liver disease was assessed. RESULTS The model's area under the curve in the test set was 0.908 with 84.9% sensitivity and 83.2% specificity, and this performance remained consistent after additional matching for medical comorbidities. Significant elevations in the ACE scores were seen with increasing model for end-stage liver disease-sodium score. Longitudinal trends in the ACE scores before and after liver transplantation mirrored the progression and resolution of liver disease. DISCUSSION The ACE score, a deep learning model, can accurately discriminate ECGs from patients with and without cirrhosis. This novel relationship between AI-enabled ECG analysis and cirrhosis holds promise as the basis for future low-cost tools and applications in the care of patients with liver disease.
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Decision making for transjugular intrahepatic portosystemic stent shunt in refractory ascites and variceal bleeding: MELD, or not MELD, that is the question. Eur J Gastroenterol Hepatol 2021; 33:e214-e222. [PMID: 33230020 PMCID: PMC8734626 DOI: 10.1097/meg.0000000000002009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
PURPOSE The model of end-stage liver disease (MELD) score has been shown to predict 3-month prognosis following transjugular intrahepatic portosystemic stent shunt (TIPS) in liver cirrhosis; however, that score was derived from a mixed cohort, including patients with refractory ascites and variceal bleeding. This study re-evaluates the role of the MELD score and focuses on differences between both groups of patients. METHODS A total of 301 patients (192 male and 109 female) received TIPS, 213 because of refractory ascites and 88 because of variceal bleeding. Univariate and multivariate Cox analyses were performed to identify predictors of mortality and area under the receiver operator characteristics (AUROC) were used to assess the prognostic capacity of the MELD score and of the results of predictors of the multivariate analyses. RESULTS In refractory ascites, age, bilirubin and albumin were independent predictors of mortality. In variceal bleeding, emergency TIPS during ongoing bleeding, concomitant grade III ascites, history of hepatic encephalopathy, spontaneous bacterial peritonitis, bilirubin and platelet count proved significant. AUROCs of the MELD score for 3-month survival yielded 0.543 and 0.836 for refractory ascites and variceal bleeding, respectively (P < 0.001). For 1-year survival, the respective AUROCs yielded 0.533 and 0.767 (P < 0.001). In contrast to MELD, the AUROCs based on the calculated risk scores of this study resulted in 0.660 and 0.876 for 3-month survival, and 0.665 and 0.835 for 1-year survival in patients with ascites and variceal bleeding, respectively. CONCLUSION In refractory ascites, the prognostic capability of MELD is significantly inferior compared to variceal bleeding. The results of our multivariate analyses and AUROC calculations corroborate the impact of different prognostic variables in patients undergoing TIPS for ascites and variceal bleeding.
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Transjugular intrahepatic portosystemic shunt in refractory ascites: clinical impact of left ventricular diastolic dysfunction. Eur J Gastroenterol Hepatol 2021; 33:e464-e470. [PMID: 33867443 DOI: 10.1097/meg.0000000000002151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Left ventricular diastolic dysfunction (LVDD) in cirrhotics are associated with circulatory dysfunction, hepatorenal syndrome (HRS) and heart failure in stressful conditions. Transjugular intrahepatic portosystemic shunt (TIPS) exacerbates the hyperdynamic circulation and challenges cardiac function. We evaluated the incidence and the impact of LVDD in cirrhotic candidates to TIPS for refractory ascites. METHODS Among 135 patients who underwent TIPS for refractory ascites, 63 cases (child B/C 53/10, Na-model for end-stage liver disease 16.5 ± 0.9) who had 2D-transthoracic-echocardiography with tissue-Doppler-imaging pre-TIPS were retrospectively analysed (group A); in 23 cases cardiac and hormonal assessment before and after TIPS was available. 41 cirrhotics without refractory ascites treated by banding ligation for variceal re-bleeding were used as controls (group B). RESULTS The prevalence of LVDD was higher in group A (59%; 22% with grade ≥2) as compared to group B (35%; 7% with grade ≥2) (P < 0.01 and P < 0.03). A lack of clinical response to TIPS occurred in 10 patients, all with LVDD (P < 0.03 vs. no LVDD) and in patients with grade ≥2 LVDD mostly (P < 0.02 vs. grade 1). Central venous pressure >20 mmHg after TIPS and left ventricular end-diastolic volume at basal were predictors of no response to TIPS (P = 0.01 and P = 0.004, respectively), which was an independent predictor of death. Elevated levels of NT-proBNP 3 days after TIPS were associated with advanced cardiac dysfunction (P = 0.005). CONCLUSION NT-proBNP and careful LVDD investigation are useful to better select patients and to predict clinical response and mortality after TIPS.
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Cardiovascular magnetic resonance demonstrates structural cardiac changes following transjugular intrahepatic portosystemic shunt. Sci Rep 2021; 11:12719. [PMID: 34135410 PMCID: PMC8209000 DOI: 10.1038/s41598-021-92064-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 04/23/2021] [Indexed: 11/10/2022] Open
Abstract
Transjugular intrahepatic portosystemic shunt (TIPS) reduces portal hypertension in patients with liver cirrhosis. The exact cardiac consequences of subsequent increase of central blood volume are unknown. Cardiovascular magnetic resonance (CMR) imaging is the method of choice for quantifying cardiac volumes and ventricular function. The aim of this study was to investigate effects of TIPS on the heart using CMR, laboratory, and imaging cardiac biomarkers. 34 consecutive patients with liver cirrhosis were evaluated for TIPS. Comprehensive CMR with native T1 mapping, transthoracic echocardiography, and laboratory biomarkers were assessed before and after TIPS insertion. Follow-up (FU) CMR was obtained in 16 patients (47%) 207 (170–245) days after TIPS. From baseline (BL) to FU, a significant increase of all indexed cardiac chamber volumes was observed (all P < 0.05). Left ventricular (LV) end-diastolic mass index increased significantly from 45 (38–51) to 65 (51–73) g/m2 (P = < 0.01). Biventricular systolic function, NT-proBNP, high-sensitive troponin T, and native T1 time did not differ significantly from BL to FU. No patient experienced cardiac decompensation following TIPS. In conclusion, in patients without clinically significant prior heart disease, increased cardiac preload after TIPS resulted in increased volumes of all cardiac chambers and eccentric LV hypertrophy, without leading to cardiac impairment during follow-up in this selected patient population.
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Abstract
Cirrhotic cardiomyopathy (CCM) connotes systolic and/or diastolic dysfunction in patients with end-stage liver disease in the absence of prior heart disease. Its prevalence is variable across different studies but recent data suggest that CCM may affect up to one third of liver transplant candidates. The etiology of CCM is multifactorial. CCM defining features were recently revised to improve the diagnostic and prognostic yield of CCM criteria and inform candidate selection for liver transplantation. CCM appears to increase the risk for unfavorable outcomes pre- and post-transplant. Close clinical and echocardiographic follow-up of patients with CCM may mitigate adverse cardiac outcomes.
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Affiliation(s)
- MANHAL J IZZY
- Assistant Professor, Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University School of Medicine, Nashville, TN
| | - LISA B VANWAGNER
- Assistant Professor, Department of Medicine, Division of Gastroenterology and Hepatology,Department of Preventive Medicine, Division of Epidemiology, Northwestern University Feinberg School of Medicine, Chicago, IL
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15
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Sturm L, Praktiknjo M, Bettinger D, Huber JP, Volkwein L, Schmidt A, Kaeser R, Chang J, Jansen C, Meyer C, Thomas D, Thimme R, Trebicka J, Schultheiß M. Prognostic Value of the CLIF-C AD Score in Patients With Implantation of Transjugular Intrahepatic Portosystemic Shunt. Hepatol Commun 2021; 5:650-660. [PMID: 33860123 PMCID: PMC8034565 DOI: 10.1002/hep4.1654] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/10/2020] [Accepted: 11/22/2020] [Indexed: 12/18/2022] Open
Abstract
Prognostic assessment of patients with liver cirrhosis allocated for implantation of a transjugular intrahepatic portosystemic shunt (TIPS) is a challenging task in clinical practice. The aim of our study was to assess the prognostic value of the CLIF-C AD (Acute Decompensation) score in patients with TIPS implantation. Transplant-free survival (TFS) and 3-month mortality were reviewed in 880 patients who received de novo TIPS implantation for the treatment of cirrhotic portal hypertension. The prognostic value of the CLIF-C AD score was compared with the Model for End-Stage Liver Disease (MELD) score, Child-Pugh score, and albumin-bilirubin (ALBI) score using Harrell's C concordance index. The median TFS after TIPS implantation was 40.0 (34.6-45.4) months. The CLIF-C AD score (c = 0.635 [0.609-0.661]) was superior in the prediction of TFS in comparison to MELD score (c = 0.597 [0.570-0.623], P = 0.006), Child-Pugh score (c = 0.579 [0.552-0.606], P < 0.001), and ALBI score (c = 0.573 [0.545-0.600], P < 0.001). However, the CLIF-C AD score did not perform significantly better than the MELD-Na score (c = 0.626 [0.599-0.653], P = 0.442). There were no profound differences in the scores' ranking with respect to indication for TIPS implantation, stent type, or underlying liver disease. Subgroup analyses revealed that a CLIF-C AD score >45 was a predictor of 3-month mortality in the supposed low-risk group of patients with a MELD score ≤12 (14.7% vs. 5.1%, P < 0.001). Conclusion: The CLIF-C AD score is suitable for prognostic assessment of patients with cirrhotic portal hypertension receiving TIPS implantation. In the prediction of TFS, the CLIF-C AD score is superior to MELD score, Child-Pugh score, and ALBI score but not the MELD-Na score.
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Affiliation(s)
- Lukas Sturm
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany.,Berta-Ottenstein-ProgrammeFaculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Michael Praktiknjo
- Department of Medicine IMedical Center University of BonnFaculty of MedicineUniversity of BonnBonnGermany
| | - Dominik Bettinger
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany.,Berta-Ottenstein-ProgrammeFaculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Jan P Huber
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Lara Volkwein
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Arthur Schmidt
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Rafael Kaeser
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Johannes Chang
- Department of Medicine IMedical Center University of BonnFaculty of MedicineUniversity of BonnBonnGermany
| | - Christian Jansen
- Department of Medicine IMedical Center University of BonnFaculty of MedicineUniversity of BonnBonnGermany
| | - Carsten Meyer
- Department of RadiologyMedical Center University of BonnFaculty of MedicineUniversity of BonnBonnGermany
| | - Daniel Thomas
- Department of RadiologyMedical Center University of BonnFaculty of MedicineUniversity of BonnBonnGermany
| | - Robert Thimme
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany
| | - Jonel Trebicka
- Department of Medicine IMedical Center University of BonnFaculty of MedicineUniversity of BonnBonnGermany.,Department of Medicine IMedical Center University of FrankfurtFaculty of MedicineUniversity of FrankfurtFrankfurt am MainGermany
| | - Michael Schultheiß
- Department of Medicine IIMedical Center University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany
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Praktiknjo M, Abu-Omar J, Chang J, Thomas D, Jansen C, Kupczyk P, Schepis F, Garcia-Pagan JC, Merli M, Meyer C, Strassburg CP, Pieper CC, Trebicka J. Controlled underdilation using novel VIATORR® controlled expansion stents improves survival after transjugular intrahepatic portosystemic shunt implantation. JHEP Rep 2021; 3:100264. [PMID: 34013182 PMCID: PMC8113713 DOI: 10.1016/j.jhepr.2021.100264] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/11/2021] [Accepted: 02/17/2021] [Indexed: 12/11/2022] Open
Abstract
Background & Aims Smaller 8-mm diameter transjugular intrahepatic portosystemic shunts (TIPS) appear to be more beneficial than larger 10-mm TIPS stent-grafts, but lack the ability for secondary dilation in cases of clinical ineffectiveness. Underdilated VIATORR® TIPS stent grafts (VTS) expand passively, whereas novel VIATORR Controlled Expansion (VCX) stent grafts do not. This study evaluated the impact on survival of underdilated VCX compared with VTS in patients with decompensated cirrhosis. Methods This was a prospective case-control study including patients with cirrhosis receiving TIPS using 10-mm VCX underdilated to 8 mm. Patients with cirrhosis receiving 10-mm VTS underdilated to 8 mm were matched for age, sex, indication for TIPS, and liver function. Results A total of 114 patients (47 VCX, 47 VTS, and 20 fully dilated VCX/VTS) were included. After TIPS implantation, underdilated VCX diameter was 8.0 (7.8-9.2) mm at a median time of 359 (87-450) days, compared with VTS at 9.9 (9.7-10.0) mm (p <0.001). The portosystemic pressure gradient immediately after TIPS procedure and after 7 days did not change significantly in VCX [mean 9.4 (± 0.8) vs. 10.4 (± 0.7) mmHg, p = 0.115). Hospital readmission rates for hepatic encephalopathy were 23% (n = 11) vs 51% (n = 24) for VCX and VTS (p <0.001), respectively. Patients with VCX had significantly lower rates of large-volume paracentesis (n = 5 [11%] vs. n = 10 [21%], p = 0.017) and heart failure (n = 1 [2%] vs. n = 7 [15%], p = 0.015). One-year mortality for underdilated VCX and VTS was 15% (n = 7) and 30% (n = 14) and, for fully dilated VCX/VTS, was 45% (n = 9) (log-rank p = 0.008), respectively. Conclusions This study demonstrated that VCX stent grafts underdilated to 8 mm do not passively expand to nominal diameter and suggests reduced hospital readmissions because of hepatic encephalopathy, uncontrolled ascites, and heart failure, and improved 1-year survival compared with underdilated VTS. Lay summary Transjugular intrahepatic portosystemic shunt (TIPS) improves survival in selected patients with liver cirrhosis and acute variceal bleeding or refractory ascites. Smaller 8-mm diameter TIPS stent grafts appear to improve patient outcome compared with larger 10-mm diameter stent grafts. Novel VIATORR® Controlled Expansion (VCX) stent grafts facilitate safe and stable underdilation to 8 mm of large 10-mm diameter stent grafts with improved patient outcome (survival, hepatic encephalopathy, ascites and heart failure) compared with legacy VIATORR TIPS stent graft (VTS). Thus, the use of underdilated VCX could preserve heart function. Clinical Trials Registration The study is registered at Clinicaltrials.govNCT03628807.
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Key Words
- Acute decompensation
- Ascites
- CT, computed tomography
- Cirrhosis
- HE, hepatic encephalopathy
- HF, heart failure
- Hepatic encephalopathy
- LV, left ventricular
- LV-GLS, LV global longitudinal strain
- LVP, large-volume paracentesis
- Liver
- MELD, model of end-stage liver disease
- NEPTUN, Non-invasive Evaluation Program for TIPS and follow Up Network
- PSPG, portosystemic pressure gradient
- PTFE, polytetrafluorethylene
- RA, recurrent/refractory ascites
- RAAS, renin-angiotensin-aldosterone system
- SPSS, spontaneous portosystemic shunt
- TIPS
- TIPS, transjugular intrahepatic portosystemic shunt
- TTE, transthoracic echocardiography
- Transjugular intrahepatic portosystemic shunt
- VB, variceal bleeding
- VCX, VIATORR controlled expansion
- VTS, VIATORR TIPS stent
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Affiliation(s)
- Michael Praktiknjo
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Jasmin Abu-Omar
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Johannes Chang
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Daniel Thomas
- Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - Christian Jansen
- Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany
| | - Patrick Kupczyk
- Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - Filippo Schepis
- Division of Gastroenterology, Azienda Ospedaliero-Universitaria di Modena and University of Modena and Reggio Emilia, Modena, Italy
| | - Juan Carlos Garcia-Pagan
- Hepatic Hemodynamic Laboratory, Liver Unit, Hospital Clinic, IDIBAPS and CIBERehd, Barcelona, Spain
| | - Manuela Merli
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Carsten Meyer
- Department of Radiology, University Hospital Bonn, Bonn, Germany
| | | | - Claus C Pieper
- Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - Jonel Trebicka
- Department of Internal Medicine I, University of Frankfurt, Frankfurt, Germany.,European Foundation for the Study of Chronic Liver Failure - EF CLIF, Barcelona, Spain
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Trebicka J, Bork P, Krag A, Arumugam M. Utilizing the gut microbiome in decompensated cirrhosis and acute-on-chronic liver failure. Nat Rev Gastroenterol Hepatol 2021; 18:167-180. [PMID: 33257833 DOI: 10.1038/s41575-020-00376-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/07/2020] [Indexed: 12/12/2022]
Abstract
The human gut microbiome has emerged as a major player in human health and disease. The liver, as the first organ to encounter microbial products that cross the gut epithelial barrier, is affected by the gut microbiome in many ways. Thus, the gut microbiome might play a major part in the development of liver diseases. The common end stage of liver disease is decompensated cirrhosis and the further development towards acute-on-chronic liver failure (ACLF). These conditions have high short-term mortality. There is evidence that translocation of components of the gut microbiota, facilitated by different pathogenic mechanisms such as increased gut epithelial permeability and portal hypertension, is an important driver of decompensation by induction of systemic inflammation, and thereby also ACLF. Elucidating the role of the gut microbiome in the aetiology of decompensated cirrhosis and ACLF deserves further investigation and improvement; and might be the basis for development of diagnostic and therapeutic strategies. In this Review, we focus on the possible pathogenic, diagnostic and therapeutic role of the gut microbiome in decompensation of cirrhosis and progression to ACLF.
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Affiliation(s)
- Jonel Trebicka
- Translational Hepatology, Department of Internal Medicine I, Goethe University Clinic Frankfurt, Frankfurt, Germany. .,European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain. .,Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark. .,Institute for Bioengineering of Catalonia, Barcelona, Spain.
| | - Peer Bork
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Aleksander Krag
- Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark
| | - Manimozhiyan Arumugam
- Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark. .,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Evaluation of impact of elective invasive examinations in patients with transjugular intrahepatic portosystemic shunt in the long-term follow up. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2021; 59:24-34. [PMID: 33429447 DOI: 10.1055/a-1330-9867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
INTRODUCTION In the management of patients with decompensated liver cirrhosis, transjugular intrahepatic portosystemic shunt (TIPS) insertion is well-established but common recommendations in the follow up management are inconsistent. Doppler sonography is commonly used for detection for TIPS dysfunction whilst data on the impact of elective invasive examinations are scarce. AIM The aim of this retrospective analysis is to evaluate potential benefits of elective invasive examinations in the follow up management of patients after TIPS insertion METHODS: Data of all patients receiving TIPS at the university hospitals of Muenster and Bonn between 2013 and 2018 (n = 534) were collected. The impact of performance of elective invasive examinations at 12 months after TIPS insertion on the occurrence of liver related events (LREs) and frequency of TIPS revisions within 24 months after TIPS insertion was analyzed. RESULTS No significant differences were found concerning occurrence of liver related events after 24 months depending on whether an elective invasive examination was performed. Occurrence of hepatic encephalopathy, relapse of initial indication for TIPS, as well as death or liver transplantation all did not differ. These findings were verified by a subgroup analysis including only patients who did not experience a LRE or TIPS revision within the first 12 months after TIPS procedure. CONCLUSION The analyzed data suggest no evidence for a beneficial impact due to implementation of an elective invasive examination program after TIPS insertion. Invasive examinations should remain reserved to patients with suspected TIPS dysfunction.
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Rajesh S, George T, Philips CA, Ahamed R, Kumbar S, Mohan N, Mohanan M, Augustine P. Transjugular intrahepatic portosystemic shunt in cirrhosis: An exhaustive critical update. World J Gastroenterol 2020; 26:5561-5596. [PMID: 33088154 PMCID: PMC7545393 DOI: 10.3748/wjg.v26.i37.5561] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/31/2020] [Accepted: 08/29/2020] [Indexed: 02/06/2023] Open
Abstract
More than five decades after it was originally conceptualized as rescue therapy for patients with intractable variceal bleeding, the transjugular intrahepatic portosystemic shunt (TIPS) procedure continues to remain a focus of intense clinical and biomedical research. By the impressive reduction in portal pressure achieved by this intervention, coupled with its minimally invasive nature, TIPS has gained increasing acceptance in the treatment of complications of portal hypertension. The early years of TIPS were plagued by poor long-term patency of the stents and increased incidence of hepatic encephalopathy. Moreover, the diversion of portal flow after placement of TIPS often resulted in derangement of hepatic functions, which was occasionally severe. While the incidence of shunt dysfunction has markedly reduced with the advent of covered stents, hepatic encephalopathy and instances of early liver failure continue to remain a significant issue after TIPS. It has emerged over the years that careful selection of patients and diligent post-procedural care is of paramount importance to optimize the outcome after TIPS. The past twenty years have seen multiple studies redefining the role of TIPS in the management of variceal bleeding and refractory ascites while exploring its application in other complications of cirrhosis like hepatic hydrothorax, portal hypertensive gastropathy, ectopic varices, hepatorenal and hepatopulmonary syndromes, non-tumoral portal vein thrombosis and chylous ascites. It has also been utilized to good effect before extrahepatic abdominal surgery to reduce perioperative morbidity and mortality. The current article aims to review the updated literature on the status of TIPS in the management of patients with liver cirrhosis.
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Affiliation(s)
- Sasidharan Rajesh
- Division of Hepatobiliary Interventional Radiology, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
| | - Tom George
- Division of Hepatobiliary Interventional Radiology, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
| | - Cyriac Abby Philips
- The Liver Unit and Monarch Liver Lab, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
| | - Rizwan Ahamed
- Gastroenterology and Advanced GI Endoscopy, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
| | - Sandeep Kumbar
- Gastroenterology and Advanced GI Endoscopy, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
| | - Narain Mohan
- The Liver Unit and Monarch Liver Lab, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
| | - Meera Mohanan
- Anesthesia and Critical Care, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
| | - Philip Augustine
- Gastroenterology and Advanced GI Endoscopy, Cochin Gastroenterology Group, Ernakulam Medical Center, Kochi 682028, Kerala, India
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Schultheiß M, Bettinger D, Thimme R, Rössle M. 30 Jahre transjugulärer intrahepatischer portosystemischer Shunt (TIPS) – Rückblick und Perspektive. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2020; 58:877-889. [DOI: 10.1055/a-1217-7866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
ZusammenfassungDer transjuguläre intrahepatische portosystemische Shunt (TIPS) wird seit 30 Jahren in der Therapie der portalen Hypertonie erfolgreich eingesetzt. In nationalen und internationalen Leitlinien ist die Indikation zur TIPS-Anlage bei Varizenblutung und refraktärem Aszites wissenschaftlich gut belegt und klar definiert. Bei seltenen Indikationen wie dem hepatorenalen Syndrom, der Pfortaderthrombose oder dem neoadjuvanten Einsatz fehlt derzeit noch eine eindeutige Studienlage. Eine wichtige Kontraindikation und klinisch bedeutendste Komplikation nach TIPS ist die hepatische Enzephalopathie (HE). Es wird versucht, die Post-TIPS HE mit technischen Weiterentwicklungen der Stents zu reduzieren.
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Affiliation(s)
- Michael Schultheiß
- Department Innere Medizin, Klinik für Innere Medizin II, Gastroenterologie, Hepatologie, Endokrinologie und Infektiologie, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg
| | - Dominik Bettinger
- Department Innere Medizin, Klinik für Innere Medizin II, Gastroenterologie, Hepatologie, Endokrinologie und Infektiologie, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg
| | - Robert Thimme
- Department Innere Medizin, Klinik für Innere Medizin II, Gastroenterologie, Hepatologie, Endokrinologie und Infektiologie, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg
| | - Martin Rössle
- Department Innere Medizin, Klinik für Innere Medizin II, Gastroenterologie, Hepatologie, Endokrinologie und Infektiologie, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg
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Transjugular intrahepatic portosystemic shunt for patients with liver cirrhosis: survey evaluating indications, standardization of procedures and anticoagulation in 43 German hospitals. Eur J Gastroenterol Hepatol 2020; 32:1179-1185. [PMID: 31851085 DOI: 10.1097/meg.0000000000001628] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Transjugular intrahepatic portosystemic shunt (TIPS) insertion is an established treatment to lower portal pressure. There are no obligatory evidence-based recommendations addressing procedure and anticoagulation. Therefore, a survey was performed to establish current practice at different German hospitals. METHODS A three-page survey was sent out via postal mail to 76 different hospitals addressing the topics indication, contraindication, follow-up and anticoagulation. RESULTS Forty-three hospitals completed the survey: the median number of TIPS/year was 28.6 ± 23. Ascites and hydrothorax were announced as the main indications. Bilirubin levels above 5 mg/dl, hepatic encephalopathy and cardiac disease were considered as absolute contraindications in most hospitals, but age was not. The biggest variations were reported with regard to anticoagulation after TIPS procedure. Four hospitals never used any anticoagulation; most hospitals reported the use of low molecular weight heparins for a period of days up to 4 weeks. But also aspirin or clopidogrel was used after TIPS insertion in eight different hospitals. Additionally, the standards for follow-up after TIPS insertion were different in the hospitals. CONCLUSIONS There is no consensus how to handle indication, contraindications and anticoagulation after the TIPS procedure. A national and international consensus is warranted to improve the outcome of TIPS patients and reduce secondary complications. In addition to compare results and efficacy in the future standard operation procedures as proposed here need to be put in place.
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22
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Tripathi D, Stanley AJ, Hayes PC, Travis S, Armstrong MJ, Tsochatzis EA, Rowe IA, Roslund N, Ireland H, Lomax M, Leithead JA, Mehrzad H, Aspinall RJ, McDonagh J, Patch D. Transjugular intrahepatic portosystemic stent-shunt in the management of portal hypertension. Gut 2020; 69:1173-1192. [PMID: 32114503 PMCID: PMC7306985 DOI: 10.1136/gutjnl-2019-320221] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 12/15/2022]
Abstract
These guidelines on transjugular intrahepatic portosystemic stent-shunt (TIPSS) in the management of portal hypertension have been commissioned by the Clinical Services and Standards Committee (CSSC) of the British Society of Gastroenterology (BSG) under the auspices of the Liver Section of the BSG. The guidelines are new and have been produced in collaboration with the British Society of Interventional Radiology (BSIR) and British Association of the Study of the Liver (BASL). The guidelines development group comprises elected members of the BSG Liver Section, representation from BASL, a nursing representative and two patient representatives. The quality of evidence and grading of recommendations was appraised using the GRADE system. These guidelines are aimed at healthcare professionals considering referring a patient for a TIPSS. They comprise the following subheadings: indications; patient selection; procedural details; complications; and research agenda. They are not designed to address: the management of the underlying liver disease; the role of TIPSS in children; or complex technical and procedural aspects of TIPSS.
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Affiliation(s)
- Dhiraj Tripathi
- Liver Unit, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK .,Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.,NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Adrian J Stanley
- Gastroenterology Department, Glasgow Royal Infirmary, Glasgow, UK
| | - Peter C Hayes
- Hepatology Department, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Simon Travis
- Department if Radiology, Queen's Medical Centre Nottingham University Hospital NHS Trust, Nottingham, UK
| | - Matthew J Armstrong
- Liver Unit, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK,Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK,NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Emmanuel A Tsochatzis
- The Royal Free Sheila Sherlock Liver Centre, UCL Institute for Liver and Digestive Health, London, UK
| | | | | | - Hamish Ireland
- Department of Radiology, Royal Infirmary of Edinburgh, Edinburgh, UK
| | | | - Joanne A Leithead
- Liver Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, UK
| | - Homoyon Mehrzad
- Department of Radiology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Richard J Aspinall
- Department of Hepatology, Portsmouth Hospitals NHS Trust, Portsmouth, UK
| | - Joanne McDonagh
- Liver Unit, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - David Patch
- The Royal Free Sheila Sherlock Liver Centre, UCL Institute for Liver and Digestive Health, London, UK
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23
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Praktiknjo M, Monteiro S, Grandt J, Kimer N, Madsen JL, Werge MP, William P, Brol MJ, Turco L, Schierwagen R, Chang J, Klein S, Uschner FE, Welsch C, Moreau R, Schepis F, Bendtsen F, Gluud LL, Møller S, Trebicka J. Cardiodynamic state is associated with systemic inflammation and fatal acute-on-chronic liver failure. Liver Int 2020; 40:1457-1466. [PMID: 32162397 DOI: 10.1111/liv.14433] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 02/17/2020] [Accepted: 03/02/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Acute-on-chronic liver failure (ACLF) is characterized by high short-term mortality and systemic inflammation (SI). Recently, different cardiodynamic states were shown to independently predict outcomes in cirrhosis. The relationship between cardiodynamic states, SI, and portal hypertension and their impact on ACLF development remains unclear. The aim of this study was therefore to evaluate the interplay of cardiodynamic state and SI on fatal ACLF development in cirrhosis. RESULTS At inclusion, hemodynamic measures including cardiac index (CI) and hepatic venous pressure gradient of 208 patients were measured. Patients were followed prospectively for fatal ACLF development (primary endpoint). SI was assessed by proinflammatory markers such as interleukins (ILs) 6 and 8 and soluble IL-33 receptor (sIL-33R). Patients were divided according to CI (<3.2; 3.2-4.2; >4.2 L/min/m2 ) in hypo- (n = 84), normo- (n = 69) and hyperdynamic group (n = 55). After a median follow-up of 3 years, the highest risk of fatal ACLF was seen in hyperdynamic (35%) and hypodynamic patients (25%) compared with normodynamic (14%) (P = .011). Hyperdynamic patients showed the highest rate of SI. The detectable level of IL-6 was an independent predictor of fatal ACLF development. CONCLUSIONS Cirrhotic patients with hyperdynamic and hypodynamic circulation have a higher risk of fatal ACLF. Therefore, the cardiodynamic state is strongly associated with SI, which is an independent predictor of development of fatal ACLF.
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Affiliation(s)
| | - Sofia Monteiro
- Department of Internal Medicine I, University of Bonn, Bonn, Germany.,Department of Medicine, Hospital Pedro Hispano, Matosinhos, Portugal
| | - Josephine Grandt
- Gastrounit Medical Division, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Nina Kimer
- Gastrounit Medical Division, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jan L Madsen
- Department of Clinical Physiology and Nuclear Medicine, 239 Center for Functional and Diagnostic Imaging and Research, Faculty of Health Sciences Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel P Werge
- Gastrounit Medical Division, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Peter William
- Gastrounit Medical Division, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Maximilian J Brol
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
| | - Laura Turco
- Division of Gastroenterology, Azienda Ospedaliero-Universitaria di Modena and University of Modena and Reggio Emilia, Modena, Italy
| | - Robert Schierwagen
- Department of Internal Medicine I, J.W.Goethe University Hospital, Frankfurt, Germany
| | - Johannes Chang
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
| | - Sabine Klein
- Department of Internal Medicine I, J.W.Goethe University Hospital, Frankfurt, Germany
| | - Frank E Uschner
- Department of Internal Medicine I, J.W.Goethe University Hospital, Frankfurt, Germany
| | - Christoph Welsch
- Department of Internal Medicine I, J.W.Goethe University Hospital, Frankfurt, Germany
| | - Richard Moreau
- Assistance Publique-Hôpitaux de Paris, Hôpital Beaujon, Département Hospitalo-Universitaire UNITY, Clichy, France.,Centre de Recherche sur l'Inflammation, Unité Mixte de Recherche, Institut National de la Santé et de la Recherche Médicale and Université Paris Diderot, Paris, France
| | - Filippo Schepis
- Division of Gastroenterology, Azienda Ospedaliero-Universitaria di Modena and University of Modena and Reggio Emilia, Modena, Italy
| | - Flemming Bendtsen
- Gastrounit Medical Division, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Lise L Gluud
- Gastrounit Medical Division, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Søren Møller
- Department of Clinical Physiology and Nuclear Medicine, 239 Center for Functional and Diagnostic Imaging and Research, Faculty of Health Sciences Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jonel Trebicka
- Department of Internal Medicine I, J.W.Goethe University Hospital, Frankfurt, Germany.,European Foundation for Study of Chronic Liver Failure, Barcelona, Spain.,Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.,Institute of Bioengineering Catalunya, Barcelona, Spain
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24
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Jansen C, Trebicka J. Editorial: diastolic dysfunction seems not to be decisive for survival after transjugular intrahepatic portosystemic stent-shunt. Aliment Pharmacol Ther 2019; 49:1101-1102. [PMID: 30920049 DOI: 10.1111/apt.15221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Christian Jansen
- Department of Internal Medicine I, University Clinic Bonn, Bonn, Germany
| | - Jonel Trebicka
- Department of Internal Medicine I, University Clinic Frankfurt, Frankfurt, Germany.,European Foundation for Study of Chronic Liver Failure, Barcelona, Spain.,Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.,Institute of Bioengineering Catalunya, Barcelona, Spain
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