Portal Hypertension

门脉高压
  • 文章类型: Journal Article
    慢性肝病引起的门静脉高压导致侧支血管的形成,称为自发性门体分流(SPSS)。这些分流可以从现有血管或通过新血管生成形成。由于不同的风险和并发症,它们的位置会影响临床结果。这篇综述总结了目前关于SPSS的知识,涵盖其临床影响和管理策略。最近的数据表明,SPSS增加了静脉曲张破裂出血的风险,无论分流的大小。分流的大小对于与SPSS相关的肝性脑病(HE)的发病率上升至关重要。它还会增加门肺高压和门静脉血栓形成的风险。检测和评估SPSS依赖于计算机断层扫描(CT)和磁共振成像。CT能够精确测量和预测肝硬化进展。管理侧重于肝脏疾病进展和SPSS相关并发症,像他一样,静脉曲张出血,和门静脉高压症。介入放射学技术,如球囊闭塞,插头辅助,而弹簧圈辅助逆行静脉闭塞则起着举足轻重的作用。手术选择很少,但在其他方法失败时会考虑。肝移植(LT)通常解决SPSS。对于发生HE或移植物灌注不足的高风险患者,仍建议进行术中SPSS结扎。
    Portal hypertension from chronic liver disease leads to the formation of collateral blood vessels called spontaneous portosystemic shunts (SPSS). These shunts may form from existing vessels or through neo-angiogenesis. Their location affects clinical outcomes due to varying risks and complications. This review summarizes current knowledge on SPSS, covering their clinical impact and management strategies. Recent data suggest that SPSS increases the risk of variceal bleeding, regardless of shunt size. The size of the shunt is crucial in the rising incidence of hepatic encephalopathy (HE) linked to SPSS. It also increases the risk of portopulmonary hypertension and portal vein thrombosis. Detecting and assessing SPSS rely on computed tomography (CT) and magnetic resonance imaging. CT enables precise measurements and the prediction of cirrhosis progression. Management focuses on liver disease progression and SPSS-related complications, like HE, variceal bleeding, and portopulmonary hypertension. Interventional radiology techniques such as balloon-occluded, plug-assisted, and coil-assisted retrograde transvenous obliteration play a pivotal role. Surgical options are rare but are considered when other methods fail. Liver transplantation (LT) often resolves SPSS. Intraoperative SPSS ligation is still recommended in patients at high risk for developing HE or graft hypoperfusion.
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  • 文章类型: Journal Article
    门静脉血栓形成是门静脉高压症患者终末期肝病的常见问题,而YerdelIV级血栓形成可能是肝移植的禁忌症。手术技术的进步表明了静脉移植如肾-门静脉吻合术的可行性。cavo-portalhemitransposition,但低移植门静脉血流灌注和局部门静脉高压是局限性。
    我们介绍了一种在肝移植患者中进行门静脉系统重建的新方法:一名28岁的男性被诊断为Budd-Chari综合征和门静脉高压并伴有IV级门静脉血栓。
    “拔出”技术用于血栓切除术,这可以帮助暴露肠系膜上静脉和门静脉分支,并减少与周围解剖结构的识别和分离相关的技术困难。收集足够的门静脉血液灌注,避免局部门静脉高压,通过双入路手术重建门静脉系统:肾-门静脉吻合术结合门静脉-门静脉吻合术。
    基于精确的术前评估,拔出技术和双入路手术的应用可能是一种有效的血栓切除术方法,尤其是在IV级门静脉血栓形成的情况下。
    UNASSIGNED: Portal vein thrombosis is a common problem of end-stage liver disease in patients with portal hypertension and Yerdel grade IV thrombosis may be a contraindication for liver transplantation. Advances in surgical technique have indicated the feasibility of liver transplantation with PVT such as Reno-portal anastomosis, cavo-portal hemitransposition, but low graft portal blood perfusion and regional portal hypertension were the limitations.
    UNASSIGNED: We introduce a new approach for portal system reconstruction in a patient underwent liver transplantation: A 28-year-old male was diagnosed with Budd-Chari syndrome and portal hypertension with grade IV portal vein thrombosis.
    UNASSIGNED: The \"Pull-out\" technique was applicated for thrombectomy, which can aid in exposing the superior mesenteric vein and portal vein branches and reducing technical difficulties associated with the identification and dissociation of surrounding anatomical structures. To collect sufficient portal vein blood perfusion and avoid regional portal hypertension, the portal vein system was reconstructed through double-approach procedure: reno-portal anastomosis combined with portal-portal anastomosis.
    UNASSIGNED: Based on a precision preoperative evaluation, application of the Pull-out technique and double-approach procedure may be an effective method of thrombectomy especially in cases of grade IV portal vein thrombosis.
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  • 文章类型: Journal Article
    结节性再生增生(NRH)是肝脏的原发性疾病,可能导致非肝硬化门脉高压。常见的原因包括自身免疫性,血液学,免疫缺陷,和骨髓增生性疾病。鉴于关于NRH在当代免疫抑制方案中的发展和肝移植后NRH的发生的有限数据,我们系统回顾了NRH与肝移植的关系。我们对NRH和移植进行了全面的搜索。19项研究确定了NRH作为肝移植指征的相关数据。确定了13项研究,其中涉及肝移植后NRH发育的相关数据。汇总分析显示,有0.9%的肝移植受者患有NRH。共有113例NRH患者接受了肝移植。大多数系列报道了在门脉高压的内镜绑扎和TIPS管理失败后进行的移植。报告的5年移植物和患者生存率为73%-78%和73%-90%。所有适应症的肝移植后NRH的合并发生率为2.9%,并引起门静脉高压症的并发症。与NRH继发的门静脉高压相关的并发症是肝移植的罕见指征。NRH可以在肝移植后的任何时间发展,通常没有可识别的原因,这可能导致门静脉高压症需要治疗甚至重新移植。
    Nodular regenerative hyperplasia (NRH) is a primary disease of the liver that may cause noncirrhotic portal hypertension. Common causes include autoimmune, hematologic, immune deficiency, and myeloproliferative disorders. Given the limited data regarding the development of NRH in contemporary immunosuppressive protocols and the occurrence of NRH post-liver transplantation, we systematically reviewed NRH as it pertains to liver transplantation. We performed a comprehensive search for NRH and transplantation. Nineteen studies were identified with relevant data for NRH as an indication for a liver transplant. Thirteen studies were identified with relevant data pertaining to NRH development after liver transplant. Pooled analysis revealed 0.9% of liver transplant recipients had NRH. A total of 113 patients identified with NRH underwent liver transplantation. Most series report transplants done after the failure of endoscopic banding and TIPS management of portal hypertension. Reported 5-year graft and patient survival ranged from 73%-78% and 73%-90%. The pooled incidence of NRH after liver transplant for all indications was 2.9% and caused complications of portal hypertension. Complications related to portal hypertension secondary to NRH are a rare indication for a liver transplant. NRH can develop at any time after liver transplantation often without an identifiable cause, which may lead to portal hypertension requiring treatment or even re-transplantation.
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  • 文章类型: Journal Article
    目的:2型糖尿病(T2DM)对等待肝移植(LT)的终末期肝病(ESLD)患者的影响尚不明确。本研究的目的是评估LT等待列表注册患者中T2DM与临床结局之间的关系。我们假设T2DM的存在将与更差的临床结果相关。
    方法:在2010年1月1日至2017年1月1日期间登记接受LT的593例成人(18岁或以上)患者被纳入本回顾性分析。2型糖尿病对肝脏相关临床事件(LACE)的影响,生存,住院治疗,需要肾脏替代治疗,并在12个月内评估接受LT的可能性.LACE被定义为静脉曲张出血,肝性脑病,和腹水。使用Kaplan-Meier和Cox回归分析来确定T2DM与临床结局之间的关联。
    结果:T2DM的基线患病率为32%(n=191),T2DM患者更容易发生食管静脉曲张(61%vs.47%,p=0.002)和静脉曲张出血病史(23%vs.16%,p=0.03)。2型糖尿病的存在与腹水的风险增加相关(HR1.91,95%CI1.11,3.28,p=0.019)。T2DM患者更有可能需要住院治疗(56%vs.49%,p=0.06),门脉高压相关并发症住院(22%vs.14%;p=0.026),住院期间需要肾脏替代治疗。T2DM患者接受LT的可能性较小(37%vs.45%;p=0.03)。关于MELD实验室,2型糖尿病患者在每次随访时胆红素均显著降低;然而,INR和肌酐无差异.
    结论:T2DM患者的临床结局风险增加。此风险未记录在MELD评分中,这可能会对他们接受LT的可能性产生负面影响。
    OBJECTIVE: Impact of type 2 diabetes mellitus (T2DM) in patients with end-stage liver disease (ESLD) awaiting liver transplantation (LT) remains poorly defined. The objective of the present study is to evaluate the relationship between T2DM and clinical outcomes among patients with LT waitlist registrants. We hypothesize that the presence of T2DM will be associated with worse clinical outcomes.
    METHODS: 593 patients adult (age 18 years or older) who were registered for LT between 1/2010 and 1/2017 were included in this retrospective analysis. The impact of T2DM on liver-associated clinical events (LACE), survival, hospitalizations, need for renal replacement therapy, and likelihood of receiving LT were evaluated over a 12-month period. LACE was defined as variceal hemorrhage, hepatic encephalopathy, and ascites. Kaplan-Meier and Cox regression analysis were used to determine the association between T2DM and clinical outcomes.
    RESULTS: The baseline prevalence of T2DM was 32% (n = 191) and patients with T2DM were more likely to have esophageal varices (61% vs. 47%, p = 0.002) and history of variceal hemorrhage (23% vs. 16%, p = 0.03). The presence of T2DM was associated with increased risk of incident ascites (HR 1.91, 95% CI 1.11, 3.28, p = 0.019). Patients with T2DM were more likely to require hospitalizations (56% vs. 49%, p = 0.06), hospitalized with portal hypertension-related complications (22% vs. 14%; p = 0.026), and require renal replacement therapy during their hospitalization. Patients with T2DM were less likely to receive a LT (37% vs. 45%; p = 0.03). Regarding MELD labs, patients with T2DM had significantly lower bilirubin at each follow-up; however, no differences in INR and creatinine were noted.
    CONCLUSIONS: Patients with T2DM are at increased risk of clinical outcomes. This risk is not captured in MELD score, which may potentially negatively affect their likelihood of receiving LT.
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  • 文章类型: Editorial
    2023年,中华医学会肝病学会召集专家小组,更新2017年推出的中国肝硬化腹水及相关并发症管理指南,并将该指南更名为“肝硬化腹水管理指南”。“这一综合资源为肝硬化腹水的诊断和治疗提供了必要的建议,自发性细菌性腹膜炎,和肝肾综合征.
    In 2023, Chinese Society of Hepatology of Chinese Medical Association convened a panel of experts to update the Chinese guidelines on the management of ascites and associated complications in cirrhosis which was launched in 2017 and renamed this guidelines as \"Guidelines on the Management of Ascites in Cirrhosis.\" This comprehensive resource offers essential recommendations for the diagnosis and treatment of cirrhotic ascites, spontaneous bacterial peritonitis, and hepatorenal syndrome.
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  • 文章类型: Journal Article
    肝硬化心肌病代表与晚期肝病相关的心脏功能障碍综合征。它是复杂的病理生理过程的结果,使疾病的进程复杂化,并且通常与不良预后相关。病理生理学,门脉高压是导致高动力循环的关键因素,通过神经体液轴的过度激活。肠梗阻,亚临床炎症和肝细胞功能不全,有几种血管活性介质的合成或代谢缺陷,是这个过程的重要组成部分。由于它通常在休息时不明显,并且仅因对血流动力学压力的心脏反应不足而掩盖,肝硬化心肌病的诊断具有挑战性,需要多模式诊断.目前还没有具体的治疗方法,但是有治疗心力衰竭的预后有效药物。因此,确定慢性肝病和心力衰竭患者对改善其预后至关重要.本文试图强调肝硬化心肌病的最重要方面,并提请注意这种情况。
    Cirrhotic cardiomyopathy represents a syndrome of cardiac dysfunction associated with advanced liver disease. It is the result of complex pathophysiological processes that complicate the course of the disease, and is generally associated with a poor prognosis. Pathophysiologically, portal hypertension is the key factor leading to hyperdynamic circulation, via over-activation of the neurohumoral axis. Intestinal obstruction, subclinical inflammation and hepatocellular insufficiency, with defective synthesis or metabolism of several vasoactive mediators, are essential components of this process. Since it is usually unapparent at rest and only unmasked by an inadequate cardiac response to hemodynamic stress, the diagnosis of cirrhotic cardiomyopathy is challenging and demands a multimodal approach. There is currently no specific therapy, but there are prognostically effective drugs available to treat heart failure. Therefore, it is crucial to identify patients with chronic liver disease and heart failure in order to ameliorate their outcome. This article attempts to highlight the most important aspects of cirrhotic cardiomyopathy and draws attention to this condition.
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  • 文章类型: Journal Article
    目的:比较以N-丁基氰基丙烯酸酯胶(EIS-CYA)和EIS-CYA联合放射介入治疗(经颈静脉肝内门体分流术(TIPSS)或球囊闭塞逆行静脉闭塞术(BRTO))预防因急性心底静脉曲张破裂出血(AVB)而继发的肝硬化患者的疗效。主要结果指标是1年时的胃静脉曲张(GV)再出血率。
    方法:在通过EIS-CYA进行初次止血后,将来自心底静脉曲张的AVB连续肝硬化患者随机分为两组(每组45例)。在“内窥镜介入”(EI)臂中,定期(1、3、6和12个月)重复EIS-CYA,在“放射性干预”(RI)领域,患者接受TIPSS或BRTO,然后进行内镜监测.
    结果:与RI组相比,EI组1年的GV再出血率较高:11(24·4%;95%CI:12·9%-39·5%)对1(2·2%;95%CI:0·1%-11·8%);(p=0·004)[ARD:22.2%(95%CI:6.6%-8.4%)EI组的GV再出血相关死亡率[8(17·8%;95%CI:8·0%-32·1%)]显着高于RI组[1(2·2%;0·1%-11·8%)](p=0.030)[ARD:15.6(95%CI:2.9%-29.2%)],然而,两组间全因死亡率无差异(12[26·7%;95%CI:14·6~41·9]与7[15·6%;95%CI:6·5~29·5]).1年预防一次GV相关性再出血所需治疗(NNT)的数量为4.5。
    结论:二级预防的放射干预可降低胃底静脉曲张再出血和GV再出血相关死亡率。(CTRI/2021/02/031396)。
    OBJECTIVE: To compare the efficacy of endoscopic injection sclerotherapy with N-butyl cyanoacrylate glue (EIS-CYA) vs EIS-CYA plus a radiologic intervention (either transjugular intrahepatic portosystemic shunt (TIPSS) or balloon-occluded retrograde transvenous obliteration (BRTO)) for secondary prophylaxis in patients with liver cirrhosis who presented with acute variceal bleeding (AVB) from cardiofundal varices. Primary outcome measure was gastric varix (GV) rebleed rates at 1 year.
    METHODS: Consecutive cirrhosis patients with AVB from cardiofundal varices were randomized into two arms (45 in each) after primary hemostasis by EIS-CYA. In the \'endoscopic intervention\' (EI) arm, EIS-CYA was repeated at regular intervals (1, 3, 6 and 12 months), while in the \'radiological intervention\' (RI) arm, patients underwent TIPSS or BRTO followed by endoscopic surveillance.
    RESULTS: GV rebleed rates at 1 year were higher in the EI arm compared to the RI arm: 11 (24·4%; 95% CI: 12·9%-39·5%) versus 1 (2·2%; 95% CI: 0·1%-11·8%); (p=0·004) [ARD: 22.2% (95% CI: 8.4%-36.6%)]. GV rebleed related mortality in the EI arm [8 (17·8%; 95% CI: 8·0%-32·1%)] was significantly higher than in the RI arm [1 (2·2%; 0·1%-11·8%)] (p=0.030) [ARD: 15.6 (95% CI: 2.9%-29.2%)], however, there was no difference in all-cause mortality between the two groups (12 [26·7%; 95% CI: 14·6 to 41·9] versus 7 [15·6%; 95% CI: 6·5 to 29·5]). Numbers needed to treat (NNT) to prevent one GV-related rebleed at 1 year was 4.5.
    CONCLUSIONS: Radiological intervention for secondary prophylaxis reduces rebleeding from gastric varices and GV rebleeding related mortality in patients with gastric variceal hemorrhage. (CTRI/2021/02/031396).
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  • 文章类型: Journal Article
    背景:门脉高压影响肝脏,内脏和门体侧支系统。虽然酒精是众所周知的肝硬化的危险因素,它也影响血管收缩性。然而,对门脉高压的相关影响尚未在非酒精性肝硬化中进行评估.本研究旨在探讨低剂量酒精对非酒精性肝硬化大鼠门静脉高压相关紊乱的影响。 方法:Sprague-Dawley大鼠接受胆管结扎以诱导肝硬化或假手术作为对照。低剂量酒精的慢性或急性影响(2.4g/kg/天,口服灌胃,评估了人类约1.3杯/天)。

    &#160;结果:长期服用低剂量酒精不会在假手术或肝硬化大鼠中沉淀肝纤维化,然而,它显著增加内脏血液流入(P=0.034)和门体侧支(P=0.001)。肠系膜血管生成和促血管生成蛋白在酒精处理的肝硬化大鼠中上调,对血管收缩剂的侧支血管反应性较差(P<0.001).始终如一,急性酒精给药减少脾肾分流阻力。对血管收缩剂的侧支血管反应性也显著降低(P=0.003)。

    &#160;结论:在非酒精性肝硬化大鼠中,由于血管扩张,单剂量酒精对门体侧支血管产生不利影响。长期饮酒导致内脏高动力循环,其中肠系膜血管生成发挥作用。需要进一步的研究来评估非酒精性肝硬化患者避免低剂量饮酒的益处。
    BACKGROUND: Portal hypertension affects hepatic, splanchnic and portosystemic collateral systems. Although alcohol is a well-known risk factor for liver cirrhosis, it also affects vascular contractility. However, the relevant effects on portal hypertension have not been evaluated in non-alcoholic cirrhosis. This study aimed to investigate the impacts of low-dose alcohol on portal hypertension-related derangements in non-alcoholic cirrhotic rats.  Methods: Sprague-Dawley rats received bile duct ligation to induce cirrhosis or sham operation as controls. The chronic or acute effects of low-dose alcohol (2.4 g/kg/day, oral gavage, approximately 1.3 drinks/day in humans) were evaluated.

     Results: The chronic administration of low-dose alcohol did not precipitate liver fibrosis in the sham or cirrhotic rats, however it significantly increased splanchnic blood inflow (P=0.034) and portosystemic collaterals (P=0.001). Mesenteric angiogenesis and pro-angiogenic proteins were upregulated in the alcohol-treated cirrhotic rats, and poorer collateral vasoresponsiveness to vasoconstrictors (P<0.001) was noted. Consistently, acute alcohol administration reduced splenorenal shunt resistance. Collateral vasoresponsiveness to vasoconstrictors also significantly decreased (P=0.003).

     Conclusions: In non-alcoholic cirrhosis rats, a single dose of alcohol adversely affected portosystemic collateral vessels due to vasodilatation. Long-term alcohol use precipitated splanchnic hyperdynamic circulation, in which mesenteric angiogenesis played a role. Further studies are warranted to evaluate the benefits of avoiding low-dose alcohol consumption in patients with non-alcoholic cirrhosis.
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  • 文章类型: Case Reports
    为了避免反复的静脉曲张出血,经颈静脉肝内门体分流术(TIPS)联合静脉曲张栓塞术被认为是一种有效的策略。然而,由于条件的变化和患者状态的变化,接受TIPS治疗的个体在手术过程中可能面临挑战和限制.在这种情况下,由于门静脉阻塞和先前的脾切除术,经颈静脉技术和经脾门静脉再通(PVR)联合TIPS无效。腹部切口,我们成功穿刺了肠系膜静脉系统,并通过肠系膜入路导航了门静脉的闭塞段。然后在气球引导下进行TIPS。本研究旨在探讨外科手术中的风险和并发症的管理,并提出多种术前手术技术,以提高手术成功率。
    To avoid recurrent variceal bleeding, transjugular intrahepatic portosystemic shunt (TIPS) in conjunction with variceal embolization is considered to be an effective strategy. However, due to changes in conditions and variations in the patient\'s state, individuals undergoing TIPS may face challenges and limitations during procedures. The transjugular technique and combined transsplenic portal venous recanalization (PVR) with TIPS were not effective in this case due to a blocked portal vein and a previous splenectomy. With an abdominal incision, we successfully punctured the mesenteric venous system and navigated the occluded segment of the portal vein through the mesenteric approach. TIPS was then performed under balloon guidance. This study aims to explore the management of risks and complications during surgical operations and propose multiple preoperative surgical techniques to improve the success rate of the procedure.
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  • 文章类型: Case Reports
    经颈静脉肝内门体分流术是一种新兴的介入手术,具有多种适应症和很高的技术成功率,但有胆道损伤的风险。被低估的情况。我们介绍了一名11岁的胆道损伤并伴有渗漏的患者,biloma形成,和经皮手术引起的胆道梗阻。介入放射学引流通过解决泄漏和胆汁瘤来解决这些并发症。这些经皮手术中的胆道并发症及其处理在医学文献中很少报道。使他们的管理不规范。我们强调引流管理以及分享引流管理的重要性,以增加这种临床情况的经验,并鼓励分享具有类似诊断的病例。
    The transjugular intrahepatic portosystemic shunt is a rising interventional procedure with multiple indications and high technical success but with risks of biliary injuries, an underreported scenario. We present an 11-year-old patient with biliary injury with a leak, biloma formation, and biliary obstruction caused by the percutaneous procedure. Interventional radiology drainages addressed these complications by resolving the leak and biloma. These biliary complications in percutaneous procedures and their management are rarely reported in the medical literature, making their management not standard. We highlight drainage management and the importance of sharing it to add experience to this clinical scenario and encourage sharing cases with similar diagnoses.
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