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Roccarina D, Best LM, Freeman SC, Roberts D, Cooper NJ, Sutton AJ, Benmassaoud A, Plaz Torres MC, Iogna Prat L, Csenar M, Arunan S, Begum T, Milne EJ, Tapp M, Pavlov CS, Davidson BR, Tsochatzis E, Williams NR, Gurusamy KS. Primary prevention of variceal bleeding in people with oesophageal varices due to liver cirrhosis: a network meta-analysis. Cochrane Database Syst Rev 2021; 4:CD013121. [PMID: 33822357 PMCID: PMC8092414 DOI: 10.1002/14651858.cd013121.pub2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Approximately 40% to 95% of people with cirrhosis have oesophageal varices. About 15% to 20% of oesophageal varices bleed in about one to three years. There are several different treatments to prevent bleeding, including: beta-blockers, endoscopic sclerotherapy, and variceal band ligation. However, there is uncertainty surrounding their individual and relative benefits and harms. OBJECTIVES To compare the benefits and harms of different treatments for prevention of first variceal bleeding from oesophageal varices in adults with liver cirrhosis through a network meta-analysis and to generate rankings of the different treatments for prevention of first variceal bleeding from oesophageal varices according to their safety and efficacy. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, Science Citation Index Expanded, World Health Organization International Clinical Trials Registry Platform, and trials registers to December 2019 to identify randomised clinical trials in people with cirrhosis and oesophageal varices with no history of bleeding. SELECTION CRITERIA We included only randomised clinical trials (irrespective of language, blinding, or status) in adults with cirrhosis and oesophageal varices with no history of bleeding. We excluded randomised clinical trials in which participants had previous bleeding from oesophageal varices and those who had previously undergone liver transplantation or previously received prophylactic treatment for oesophageal varices. DATA COLLECTION AND ANALYSIS We performed a network meta-analysis with OpenBUGS using Bayesian methods and calculated the differences in treatments using hazard ratios (HR), odds ratios (OR), and rate ratios with 95% credible intervals (CrI) based on an available-case analysis, according to National Institute for Health and Care Excellence Decision Support Unit guidance. We performed the direct comparisons from randomised clinical trials using the same codes and the same technical details. MAIN RESULTS We included 66 randomised clinical trials (6653 participants) in the review. Sixty trials (6212 participants) provided data for one or more comparisons in the review. The trials that provided the information included people with cirrhosis due to varied aetiologies and those at high risk of bleeding from oesophageal varices. The follow-up in the trials that reported outcomes ranged from 6 months to 60 months. All but one of the trials were at high risk of bias. The interventions compared included beta-blockers, no active intervention, variceal band ligation, sclerotherapy, beta-blockers plus variceal band ligation, beta-blockers plus nitrates, nitrates, beta-blockers plus sclerotherapy, and portocaval shunt. Overall, 21.2% of participants who received non-selective beta-blockers ('beta-blockers') - the reference treatment (chosen because this was the most common treatment compared in the trials) - died during 8-month to 60-month follow-up. Based on low-certainty evidence, beta-blockers, variceal band ligation, sclerotherapy, and beta-blockers plus nitrates all had lower mortality versus no active intervention (beta-blockers: HR 0.49, 95% CrI 0.36 to 0.67; direct comparison HR: 0.59, 95% CrI 0.42 to 0.83; 10 trials, 1200 participants; variceal band ligation: HR 0.51, 95% CrI 0.35 to 0.74; direct comparison HR 0.49, 95% CrI 0.12 to 2.14; 3 trials, 355 participants; sclerotherapy: HR 0.66, 95% CrI 0.51 to 0.85; direct comparison HR 0.61, 95% CrI 0.41 to 0.90; 18 trials, 1666 participants; beta-blockers plus nitrates: HR 0.41, 95% CrI 0.20 to 0.85; no direct comparison). No trials reported health-related quality of life. Based on low-certainty evidence, variceal band ligation had a higher number of serious adverse events (number of events) than beta-blockers (rate ratio 10.49, 95% CrI 2.83 to 60.64; 1 trial, 168 participants). Based on low-certainty evidence, beta-blockers plus nitrates had a higher number of 'any adverse events (number of participants)' than beta-blockers alone (OR 3.41, 95% CrI 1.11 to 11.28; 1 trial, 57 participants). Based on low-certainty evidence, adverse events (number of events) were higher in sclerotherapy than in beta-blockers (rate ratio 2.49, 95% CrI 1.53 to 4.22; direct comparison rate ratio 2.47, 95% CrI 1.27 to 5.06; 2 trials, 90 participants), and in beta-blockers plus variceal band ligation than in beta-blockers (direct comparison rate ratio 1.72, 95% CrI 1.08 to 2.76; 1 trial, 140 participants). Based on low-certainty evidence, any variceal bleed was lower in beta-blockers plus variceal band ligation than in beta-blockers (direct comparison HR 0.21, 95% CrI 0.04 to 0.71; 1 trial, 173 participants). Based on low-certainty evidence, any variceal bleed was higher in nitrates than beta-blockers (direct comparison HR 6.40, 95% CrI 1.58 to 47.42; 1 trial, 52 participants). The evidence indicates considerable uncertainty about the effect of the interventions in the remaining comparisons. AUTHORS' CONCLUSIONS Based on low-certainty evidence, beta-blockers, variceal band ligation, sclerotherapy, and beta-blockers plus nitrates may decrease mortality compared to no intervention in people with high-risk oesophageal varices in people with cirrhosis and no previous history of bleeding. Based on low-certainty evidence, variceal band ligation may result in a higher number of serious adverse events than beta-blockers. The evidence indicates considerable uncertainty about the effect of beta-blockers versus variceal band ligation on variceal bleeding. The evidence also indicates considerable uncertainty about the effect of the interventions in most of the remaining comparisons.
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Affiliation(s)
- Davide Roccarina
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | - Lawrence Mj Best
- Division of Surgery and Interventional Science, University College London, London, UK
- Department of Therapy, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Suzanne C Freeman
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Danielle Roberts
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Nicola J Cooper
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Alex J Sutton
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Amine Benmassaoud
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | | | - Laura Iogna Prat
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | - Mario Csenar
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Sivapatham Arunan
- General and Colorectal Surgery, Ealing Hospital and Imperial College, London, Northwood, UK
| | | | | | | | - Chavdar S Pavlov
- Department of Therapy, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Brian R Davidson
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Emmanuel Tsochatzis
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | - Norman R Williams
- Surgical & Interventional Trials Unit (SITU), UCL Division of Surgery & Interventional Science, London, UK
| | - Kurinchi Selvan Gurusamy
- Division of Surgery and Interventional Science, University College London, London, UK
- Department of Therapy, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
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Plaz Torres MC, Best LM, Freeman SC, Roberts D, Cooper NJ, Sutton AJ, Roccarina D, Benmassaoud A, Iogna Prat L, Williams NR, Csenar M, Fritche D, Begum T, Arunan S, Tapp M, Milne EJ, Pavlov CS, Davidson BR, Tsochatzis E, Gurusamy KS. Secondary prevention of variceal bleeding in adults with previous oesophageal variceal bleeding due to decompensated liver cirrhosis: a network meta-analysis. Cochrane Database Syst Rev 2021; 3:CD013122. [PMID: 33784794 PMCID: PMC8094621 DOI: 10.1002/14651858.cd013122.pub2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Approximately 40% to 95% of people with cirrhosis have oesophageal varices. About 15% to 20% of oesophageal varices bleed in about one to three years of diagnosis. Several different treatments are available, which include endoscopic sclerotherapy, variceal band ligation, beta-blockers, transjugular intrahepatic portosystemic shunt (TIPS), and surgical portocaval shunts, among others. However, there is uncertainty surrounding their individual and relative benefits and harms. OBJECTIVES To compare the benefits and harms of different initial treatments for secondary prevention of variceal bleeding in adults with previous oesophageal variceal bleeding due to decompensated liver cirrhosis through a network meta-analysis and to generate rankings of the different treatments for secondary prevention according to their safety and efficacy. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, Science Citation Index Expanded, World Health Organization International Clinical Trials Registry Platform, and trials registers until December 2019 to identify randomised clinical trials in people with cirrhosis and a previous history of bleeding from oesophageal varices. SELECTION CRITERIA We included only randomised clinical trials (irrespective of language, blinding, or status) in adults with cirrhosis and previous history of bleeding from oesophageal varices. We excluded randomised clinical trials in which participants had no previous history of bleeding from oesophageal varices, previous history of bleeding only from gastric varices, those who failed previous treatment (refractory bleeding), those who had acute bleeding at the time of treatment, and those who had previously undergone liver transplantation. DATA COLLECTION AND ANALYSIS We performed a network meta-analysis with OpenBUGS using Bayesian methods and calculated the differences in treatments using hazard ratios (HR), odds ratios (OR) and rate ratios with 95% credible intervals (CrI) based on an available-case analysis, according to National Institute of Health and Care Excellence Decision Support Unit guidance. MAIN RESULTS We included a total of 48 randomised clinical trials (3526 participants) in the review. Forty-six trials (3442 participants) were included in one or more comparisons. The trials that provided the information included people with cirrhosis due to varied aetiologies. The follow-up ranged from two months to 61 months. All the trials were at high risk of bias. A total of 12 interventions were compared in these trials (sclerotherapy, beta-blockers, variceal band ligation, beta-blockers plus sclerotherapy, no active intervention, TIPS (transjugular intrahepatic portosystemic shunt), beta-blockers plus nitrates, portocaval shunt, sclerotherapy plus variceal band ligation, beta-blockers plus nitrates plus variceal band ligation, beta-blockers plus variceal band ligation, sclerotherapy plus nitrates). Overall, 22.5% of the trial participants who received the reference treatment (chosen because this was the commonest treatment compared in the trials) of sclerotherapy died during the follow-up period ranging from two months to 61 months. There was considerable uncertainty in the effects of interventions on mortality. Accordingly, none of the interventions showed superiority over another. None of the trials reported health-related quality of life. Based on low-certainty evidence, variceal band ligation may result in fewer serious adverse events (number of people) than sclerotherapy (OR 0.19; 95% CrI 0.06 to 0.54; 1 trial; 100 participants). Based on low or very low-certainty evidence, the adverse events (number of participants) and adverse events (number of events) may be different across many comparisons; however, these differences are due to very small trials at high risk of bias showing large differences in some comparisons leading to many differences despite absence of direct evidence. Based on low-certainty evidence, TIPS may result in large decrease in symptomatic rebleed than variceal band ligation (HR 0.12; 95% CrI 0.03 to 0.41; 1 trial; 58 participants). Based on moderate-certainty evidence, any variceal rebleed was probably lower in sclerotherapy than in no active intervention (HR 0.62; 95% CrI 0.35 to 0.99, direct comparison HR 0.66; 95% CrI 0.11 to 3.13; 3 trials; 296 participants), beta-blockers plus sclerotherapy than sclerotherapy alone (HR 0.60; 95% CrI 0.37 to 0.95; direct comparison HR 0.50; 95% CrI 0.07 to 2.96; 4 trials; 231 participants); TIPS than sclerotherapy (HR 0.18; 95% CrI 0.08 to 0.38; direct comparison HR 0.22; 95% CrI 0.01 to 7.51; 2 trials; 109 participants), and in portocaval shunt than sclerotherapy (HR 0.21; 95% CrI 0.05 to 0.77; no direct comparison) groups. Based on low-certainty evidence, beta-blockers alone and TIPS might result in more, other compensation, events than sclerotherapy (rate ratio 2.37; 95% CrI 1.35 to 4.67; 1 trial; 65 participants and rate ratio 2.30; 95% CrI 1.20 to 4.65; 2 trials; 109 participants; low-certainty evidence). The evidence indicates considerable uncertainty about the effect of the interventions including those related to beta-blockers plus variceal band ligation in the remaining comparisons. AUTHORS' CONCLUSIONS The evidence indicates considerable uncertainty about the effect of the interventions on mortality. Variceal band ligation might result in fewer serious adverse events than sclerotherapy. TIPS might result in a large decrease in symptomatic rebleed than variceal band ligation. Sclerotherapy probably results in fewer 'any' variceal rebleeding than no active intervention. Beta-blockers plus sclerotherapy and TIPS probably result in fewer 'any' variceal rebleeding than sclerotherapy. Beta-blockers alone and TIPS might result in more other compensation events than sclerotherapy. The evidence indicates considerable uncertainty about the effect of the interventions in the remaining comparisons. Accordingly, high-quality randomised comparative clinical trials are needed.
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Affiliation(s)
| | - Lawrence Mj Best
- Division of Surgery and Interventional Science, University College London, London, UK
- Department of Therapy, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Suzanne C Freeman
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Danielle Roberts
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Nicola J Cooper
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Alex J Sutton
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Davide Roccarina
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | - Amine Benmassaoud
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | - Laura Iogna Prat
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | - Norman R Williams
- Surgical & Interventional Trials Unit (SITU), UCL Division of Surgery & Interventional Science, London, UK
| | - Mario Csenar
- Division of Surgery and Interventional Science, University College London, London, UK
| | | | | | - Sivapatham Arunan
- General and Colorectal Surgery, Ealing Hospital and Imperial College, London, Northwood, UK
| | | | | | - Chavdar S Pavlov
- Department of Therapy, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Brian R Davidson
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Emmanuel Tsochatzis
- Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK
| | - Kurinchi Selvan Gurusamy
- Division of Surgery and Interventional Science, University College London, London, UK
- Department of Therapy, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
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Han X, Li J, Yang JM, Gao M, Wang L. A retrospective analysis of hyponatremia during terlipressin treatment in patients with esophageal or gastric variceal bleeding due to portal hypertension. JGH OPEN 2020; 4:368-370. [PMID: 32514438 PMCID: PMC7273692 DOI: 10.1002/jgh3.12254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 08/08/2019] [Accepted: 08/16/2019] [Indexed: 01/02/2023]
Abstract
Background and Aim To explore the risk factors of hyponatremia caused by terlipressin. Methods Forty‐four patients with acute variceal bleeding treated with terlipressin from December 2016 to December 2018 were analyzed. Results During the treatment, serum sodium levels decreased from 137.78 to 126.59 mmol/L (P < 0.05), with an average decrease of 11.19 mmol/L. The serum sodium level decreased by less than 5 mmol/L in 12 patients (27.27%), by 5–10 mmol/L in 13 patients (27.27%), and by more than 10 mmol/L in 19 patients (43.18%). The difference in baseline serum sodium levels was statistically significant (P < 0.05), and the differences in baseline total bilirubin levels, Child‐Pugh scores, and model for end‐stage liver disease scores were also significant. Logistic regression analysis suggested that the initial sodium level was an independent risk factor for the decrease in the serum sodium concentration caused by terlipressin. Conclusion The incidence of hyponatremia is not low during treatment with terlipressin; a higher baseline serum sodium level is a risk factor for hyponatremia during treatment with terlipressin, and the mechanism may be related to endogenous vasopressin preconditioning.
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Affiliation(s)
- Xv Han
- Tianjin Second People's Hospital Tianjin Hepatopathy Research Institute Tianjin China
| | - Jia Li
- Tianjin Second People's Hospital Tianjin Hepatopathy Research Institute Tianjin China
| | - Ji-Ming Yang
- Tianjin Second People's Hospital Tianjin Hepatopathy Research Institute Tianjin China
| | - Min Gao
- Tianjin Second People's Hospital Tianjin Hepatopathy Research Institute Tianjin China
| | - Lei Wang
- Tianjin Second People's Hospital Tianjin Hepatopathy Research Institute Tianjin China
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Kalambokis G, Baltayiannis G, Tsiouris S, Pappas K, Kokkinou P, Fotopoulos A, Tsianos EV. Scintigraphic evaluation of intrapulmonary shunt in normoxemic cirrhotic patients and effects of terlipressin. Hepatol Res 2010; 40:1015-21. [PMID: 20887337 DOI: 10.1111/j.1872-034x.2010.00715.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIM The magnitude of intrapulmonary shunt (IPS) in cirrhotic patients without hypoxemia remains undefined. We evaluated the severity and clinical correlations of IPS in normoxemic cirrhotics, and possible IPS alterations after terlipressin treatment. METHODS Fifteen patients with alcoholic cirrhosis without hypoxemia were studied at baseline and after the administration of 2 mg of terlipressin. The IPS fraction was evaluated by lung perfusion scan after the i.v. injection of technetium-99m-labeled macroaggregated albumin ((99m) Tc-MAA) and calculation of brain uptake (positive value ≥6%). Cardiac output (CO), pulmonary artery systolic pressure (PASP) and pulmonary vascular resistance (PVR) were evaluated by Doppler echocardiography. Mean arterial pressure (MAP) was measured and the ratio MAP/CO was calculated as an index of systemic vascular resistance (SVR). Portal vein velocity (PVV) and portal venous flow (PVF) were also assessed by Doppler ultrasonography. RESULTS Three patients (20%) had an IPS fraction of more than 6%. A significant inverse correlation with platelet count (P = 0.001) and a direct correlation with Child-Pugh score (P = 0.06), PVV (P = 0.07) and PVF (P = 0.07) were noted. IPS fractions decreased significantly after terlipressin administration (P = 0.00001); the IPS fraction fell below 6% in all three patients with positive baseline values. Terlipressin treatment induced a significant decrease in CO (P = 0.003) and significant increases in MAP (P = 0.0003), SVR (P = 0.0003), SPAP (P = 0.001) and PVR (P = 0.01). CONCLUSION IPS fractions detected by (99m) Tc-MAA lung scan were inversely correlated with platelet count and directly with liver disease severity, and found abnormal in 20% of normoxemic cirrhotic patients. Terlipressin reduced significantly the magnitude of the shunt.
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Affiliation(s)
- George Kalambokis
- First Division of Internal Medicine Hepato-Gastroenterology Unit Department of Nuclear Medicine Department of Cardiology Medical School, University of Ioannina, Ioannina, Greece
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Vasopressin analogues in the treatment of hepatorenal syndrome and gastrointestinal haemorrhage. Best Pract Res Clin Anaesthesiol 2008; 22:335-50. [DOI: 10.1016/j.bpa.2008.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Saner FH, Canbay A, Gerken G, Broelsch CE. Pharmacology, clinical efficacy and safety of terlipressin in esophageal varices bleeding, septic shock and hepatorenal syndrome. Expert Rev Gastroenterol Hepatol 2007; 1:207-17. [PMID: 19072411 DOI: 10.1586/17474124.1.2.207] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Terlipressin, a vasopressin agonist, is a commonly used drug with different indications, particularly in patients with end-stage liver disease. As a V(1) receptor agonist, it increases systemic vascular resistance, particularly in the splanchnic area, resulting in a decrease of portal pressure. Besides the approved use for variceal bleeding, terlipressin also has beneficial effects in the treatment of hepatorenal syndrome and norepinephrine-resistant septic shock. In patients with cirrhosis and variceal bleeding, the use of terlipressin reduces the portal vein pressure and decreases the pressure in esophageal varices. This can save lives when skilled endoscopists are not immediately available. Hepatorenal syndrome is associated with vasodilation in the mesenteric circulation with arterial underfilling and consecutive renal vasoconstriction. Restoration of an effective arterial blood volume can be achieved by the combination of terlipressin and volume expansion. In some cases, a success rate of up to 75% is reported. The early use of terlipressin in catecholamine-resistant shock can improve organ perfusion.
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Affiliation(s)
- Fuat H Saner
- University Essen, Department of General, Visceral and Transplant Surgery, Hufelandstr. 55, 45122 Essen, Germany.
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Zhu JB, Deng LQ, Wang SY. Effects of pituitrin and triglycyl-lysine-vasopressin on hepatic oxygen partial pressure in portal hypertensive rats. Shijie Huaren Xiaohua Zazhi 2003; 11:1172-1174. [DOI: 10.11569/wcjd.v11.i8.1172] [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] [Indexed: 02/06/2023] Open
Abstract
AIM To explore the different effects of pituitrin and triglycyl-lysine-vasopressin (tGLVP)on hepatic oxygen partial pressure (PhO2) while reducing the partial hypertension in portal hypertension rats.
METHODS The model of biliary cirrhosis was induced by ligating the choledochus. Forty rats were divided into two groups randomly: pp group (n = 20)and tGLVP group(n = 20). PP and tGLVP were slowly infused into the rats via portal vein respectively. The portal vein pressure and the oxygen partial pressure were obtained at the moment before administration and 5, 10, 15, 25, 30 minutes after administration.
RESULTS Portal venous pressure (PVP) was significantly lowered after infusion in two groups. There was no significant difference between the two groups (t = 0.39, P>0.05). PhO2 was significantly decreased in pp group after infusion (P<0.01), but not in tGLVP group (P<0.05).There was significant difference between the two groups in PhO2 after infusion (t = 9.19, P<0.01).
CONCLUSION PP caused a significant decrease both in portal pressure and PhO2. PVP was decreased by tGLVP, but PhO2 was not decreased significantly. tGLVP is considered to be better than PP in treatment of acute variceal hemorrhage.
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Affiliation(s)
- Jian-Bo Zhu
- Department of Gastroenterology, Affiliated Hospital of Medical College of Hubei Institute for Nationalities, Enshi 445000, Hubei Province, China
| | - Li-Qun Deng
- Department of Gastroenterology, Affiliated Hospital of Medical College of Hubei Institute for Nationalities, Enshi 445000, Hubei Province, China
| | - Si-Yuan Wang
- Department of Gastroenterology, Affiliated Hospital of Medical College of Hubei Institute for Nationalities, Enshi 445000, Hubei Province, China
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Abstract
IMPLICATIONS Insufficient splanchnic blood flow in critically ill patients is the result of a multitude of different diseases, treatment modalities and their interplay, and is associated with increased morbidity and mortality. A combination of diminished and heterogeneous mesenteric blood flow, impaired or exhausted regulatory mechanisms and adverse drug effects may coexist with normal systemic hemodynamics.
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Affiliation(s)
- Stephan M Jakob
- Department of Intensive Care Medicine, University Hospital, Bern, Switzerland
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Oben JA, Yang S, Lin H, Ono M, Diehl AM. Norepinephrine and neuropeptide Y promote proliferation and collagen gene expression of hepatic myofibroblastic stellate cells. Biochem Biophys Res Commun 2003; 302:685-90. [PMID: 12646223 DOI: 10.1016/s0006-291x(03)00232-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The mechanisms initiating and perpetuating the fibrogenic response in the injured liver are not well understood. Hepatic stellate cells are activated by liver injury to become proliferative and fibrogenic myofibroblasts. Emerging evidence suggests that the sympathetic nervous system may play a role in the development of cirrhosis. It is not known, however, whether this requires a direct interaction between sympathetic neurotransmitters and stellate cell receptors, or results indirectly, from sympathetic effects on the vasculature. Using cultured hepatic stellate cells, we show that the sympathetic neurotransmitters, norepinephrine and neuropeptide Y, markedly stimulate the proliferation of activated, myofibroblastic, hepatic stellate cells. Norepinephrine, but not neuropeptide Y, also induces collagen gene expression. In conclusion, physiologically relevant concentrations of sympathetic neurotransmitters directly modulate the phenotype of hepatic stellate cells. This suggests that targeted interruption of sympathetic nervous system signaling in hepatic stellate cells may be useful in constraining the fibrogenic response to liver injury.
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Affiliation(s)
- Jude A Oben
- Department of Medicine, Division of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, MD 21286, USA
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Affiliation(s)
- Don C Rockey
- Department of Medicine and The Liver Center, Duke University Medical Center, Durham, NC 27710, USA.
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Vater Y, Dembo G, Levy A, Hunter C, Martay K. Adjunct drugs in liver transplantation. ACTA ACUST UNITED AC 2002. [DOI: 10.1053/sane.2002.34196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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