Gut microbiota shifts in hepatitis B-related portal hypertension after transjugular intrahepatic portosystemic shunt:Mechanistic and clinical implications

In this article,we provide commentary on the recent article by Zhao et al.We focus on the shifts in the gut microbiota of patients with hepatitis B virus(HBV)-associated cirrhosis/portal hypertension(PH)following transjugular intrahepatic portosystemic shunt(TIPS)and the implications for understanding the mechanisms,diagnosis,and treatment.By comparing the gut microbiota composition and dynamic changes before and after TIPS in patients with and without hepatic encephalopathy,the authors found an increase in non-probiotic bacteria in those who developed hepatic encephalopathy post-TIPS,with Morganella species present only in the hepatic encephalopathy group.The gut microbiota changes post-TIPS among patients without the occurrence of hepatic encephalopathy suggest potential therapeutic benefits through prophylactic microbiome therapies.Furthermore,the specific gut microbiota alterations may hold promise to predict the risk of hepatic encephalopathy in individuals undergoing TIPS for HBVrelated PH.Despite these promising findings,future studies are needed to address limitations,including a small sample size,a relatively short evaluation period for gut microbiota alterations,the absence of data on dynamic alterations in gut microbiota post-TIPS and their correlation with blood ammonia levels,and the lack of validation in animal models.In conclusion,Zhao et al's study has shed new light on the link of gut microbiota with post-TIPS hepatic encephalopathy,potentially through the intricate gut-liver axis,and has important clinical implications for improving the management of patients with HBV-related PH.

Alterations in the gut microbiome after transjugular intrahepatic portosystemic shunt in patients with hepatitis B virus-related portal hypertension

BACKGROUND Gut microbiota(GM)affects the progression and response to treatment in liver diseases.The GM composition is diverse and associated with different etiologies of liver diseases.Notably,alterations in GM alterations are observed in patients with portal hypertension(PH)secondary to cirrhosis,with hepatitis B virus(HBV)infection being a major cause of cirrhosis in China.Thus,understanding the role of GM alterations in patients with HBV infection-related PH is essential.AIM To evaluate GM alterations in patients with HBV-related PH after transjugular intrahepatic portosystemic shunt(TIPS)placement.METHODS This was a prospective,observational clinical study.There were 30 patients(with a 100%technical success rate)recruited in the present study.Patients with esophagogastric variceal bleeding due to HBV infection-associated PH who underwent TIPS were enrolled.Stool samples were obtained before and one month after TIPS treatment,and GM was analyzed using 16S ribosomal RNA amplicon sequencing.RESULTS One month after TIPS placement,8 patients developed hepatic encephalopathy(HE)and were assigned to the HE group;the other 22 patients were assigned to the non-HE group.There was no substantial disparity in the abundance of GM at the phylum level between the two groups,regardless of TIPS treatment(all,P>0.05).However,following TIPS placement,the following results were observed:(1)The abundance of Haemophilus and Eggerthella increased,whereas that of Anaerostipes,Dialister,Butyricicoccus,and Oscillospira declined in the HE group;(2)The richness of Eggerthella,Streptococcus,and Bilophila increased,whereas that of Roseburia and Ruminococcus decreased in the non-HE group;and(3)Members from the pathogenic genus Morganella appeared in the HE group but not in the non-HE group.CONCLUSION Intestinal microbiota-related synergism may predict the risk of HE following TIPS placement in patients with HBVrelated PH.Prophylactic microbiome therapies may be useful for preventing and treating HE after TIPS placement.

Insights and future directions in studying intestinal microbiota posttransjugular intrahepatic portosystemic shunt for hepatitis B virusrelated portal hypertension

The gut microbiota(GM)plays a major role in the progression and treatment response of liver diseases,with diverse compositions based on different etiologies.In China,hepatitis B virus(HBV)infection is the leading cause of cirrhosis and affects the GM composition in patients with cirrhosis-related portal hypertension(PH).However,a few studies have been conducted on GM alterations after transjugular intrahepatic portosystemic shunt(TIPS)in patients with HBV-related PH.A recent study investigated the changes in the GM in these patients after TIPS.This study found an increase in potentially pathogenic bacteria and a decrease in beneficial bacteria post-TIPS,particularly in patients with hepatic encephalopathy(HE),indicating the potential role of the GM in HE prediction and management post-TIPS.Nevertheless,the study had several limitations,including a small sample size,limited follow-up,a single time point for sample collection,and inadequate analysis of the correlation between intestinal flora,HBV infection status,and clinical parameters.Future research should address these limitations by expanding the sample size,prolonging the follow-up duration,collecting samples at multiple time points,and conducting compre-hensive analyses to confirm the findings and evaluate the effectiveness of individualized microbiome-based therapies.

Spleen volume is associated with overt hepatic encephalopathy after transjugular intrahepatic portosystemic shunt in patients with portal hypertension

BACKGROUND Portal shunt and immune status related to the spleen are related to the occurrence of hepatic encephalopathy(HE).It is unknown whether spleen volume before transjugular intrahepatic portosystemic shunt(TIPS)is related to postoperative HE.AIM To investigate the relationship between spleen volume and the occurrence of HE.METHODS This study included 135 patients with liver cirrhosis who underwent TIPS,and liver and spleen volumes were elevated upon computed tomography imaging.The Kaplan-Meier curve was used to compare the difference in the incidence rate of HE among patients with different spleen volumes.Univariate and multivariate Cox regression analyses were performed to identify the factors affecting overt HE(OHE).Restricted cubic spline was used to examine the shapes of the dose-response association between spleen volumes and OHE risk.RESULTS The results showed that 37(27.2%)of 135 patients experienced OHE during a 1-year follow-up period.Compared with preoperative spleen volume(901.30±471.90 cm3),there was a significant decrease in spleen volume after TIPS(697.60±281.0 cm^(3))in OHE patients.As the severity of OHE increased,the spleen volume significantly decreased(P<0.05).Compared with patients with a spleen volume≥782.4 cm^(3),those with a spleen volume<782.4 cm^(3) had a higher incidence of HE(P<0.05).Cox regression analysis showed that spleen volume was an independent risk factor for post-TIPS OHE(hazard ratio=0.494,P<0.05).Restricted cubic spline model showed that with an increasing spleen volume,OHE risk showed an initial increase and then decrease(P<0.05).CONCLUSION Spleen volume is related to the occurrence of OHE after TIPS.Preoperative spleen volume is an independent risk factor for post-TIPS OHE.

Enhancing transjugular intrahepatic portosystemic shunt procedure efficiency with digital subtraction angiography image overlay technology in esophagogastric variceal bleeding

BACKGROUND Transjugular intrahepatic portosystemic shunt(TIPS)is a pivotal intervention for managing esophagogastric variceal bleeding in patients with chronic hepatic schistosomiasis.AIM To evaluate the efficacy of digital subtraction angiography image overlay tech-nology(DIT)in guiding the TIPS procedure.METHODS We conducted a retrospective analysis of patients who underwent TIPS at our hospital,comparing outcomes between an ultrasound-guided group and a DIT-guided group.Our analysis focused on the duration of the portosystemic shunt puncture,the number of punctures needed,the total surgical time,and various clinical indicators related to the surgery.RESULTS The study included 52 patients with esophagogastric varices due to chronic hepatic schistosomiasis.Results demonstrated that the DIT-guided group expe-rienced significantly shorter puncture times(P<0.001)and surgical durations(P=0.022)compared to the ultrasound-guided group.Additionally,postoperative assessments showed significant reductions in aspartate aminotransferase,B-type natriuretic peptide,and portal vein pressure in both groups.Notably,the DIT-guided group also showed significant reductions in total bilirubin(P=0.001)and alanine aminotransferase(P=0.023).CONCLUSION The use of DIT for guiding TIPS procedures highlights its potential to enhance procedural efficiency and reduce surgical times in the treatment of esophagogastric variceal bleeding in patients with chronic hepatic schistoso-miasis.

Portal hypertension exacerbates intrahepatic portosystemic venous shunt and further induces refractory hepatic encephalopathy: A case report

BACKGROUND Intrahepatic portosystemic venous shunt(IPSVS)is a rare hepatic disease with different clinical manifestations.Most IPSVS patients with mild shunts are asymptomatic,while the patients with severe shunts present complications such as hepatic encephalopathy.For patients with portal hypertension accompanied by intrahepatic shunt,portal hypertension may lead to hemodynamic changes that may result in exacerbated portal shunt and increased shunt flow.CASE SUMMARY A 57-year-old man,with the medical history of chronic hepatitis B and liver cirrhosis,was admitted to our hospital with abnormal behavior for 10 mo.He had received the esophageal varices ligation and entecavir therapy 1 year ago.Comparing with former examination results,the degree of esophageal varices was significantly reduced,while the right branch of the portal vein was significantly expanded and tortuous.Meanwhile,abdominal ultrasound presented the right posterior branch of portal vein connected with the retrohepatic inferior vena cava.The imaging findings indicated the diagnosis of IPSVS and hepatic encephalopathy.Instead of radiologic interventions or surgical therapies,this patient had only accepted symptomatic treatment.No recurrence of hepatic encephalopathy was observed during 1-year follow-up.CONCLUSION Hemodynamic changes may exacerbate intrahepatic portosystemic shunt.The intervention or surgery should be carefully applied to patients with severe portal hypertension due to the risk of hemorrhage.

Targeted puncture of left branch of intrahepatic portal vein in transjugular intrahepatic portosystemic shunt to reduce hepatic encephalopathy

BACKGROUND Transjugular intrahepatic portosystemic shunt(TIPS) is currently used for the treatment of complications of portal hypertension. The incidence of hepatic encephalopathy(HE) remains a problem in TIPS placement. It has been reported that the right branch mainly receives superior mesenteric venous blood while the left branch mainly receives blood from the splenic vein. We hypothesized that targeted puncture of the left portal vein would divert the non-nutritive blood from the splenic vein into the TIPS shunt; therefore, targeted puncture of the left branch of the intrahepatic portal vein during TIPS may reduce the risk of HE.AIM To evaluate the influence of targeted puncture of left branch of portal vein in TIPS on HE.METHODS A retrospective analysis of 1244 patients with portal-hypertension-related complications of refractory ascites or variceal bleeding who underwent TIPS from January 2000 to January 2013 was performed. Patients were divided into group A(targeting left branch of portal vein, n = 937) and group B(targeting right branch of portal vein, n = 307). TIPS-related HE and clinical outcomes were analyzed.RESULTS The symptoms of ascites and variceal bleeding disappeared within a short time.By the endpoint of follow-up, recurrent bleeding and ascites did not differ significantly between groups A and B(P = 0.278, P = 0.561, respectively).Incidence of HE differed significantly between groups A and B at 1 mo(14.94% vs36.80%, χ~2 = 4.839, P = 0.028), 3 mo(12.48% vs 34.20%, χ~2 = 5.054, P = 0.025), 6 mo(10.03% vs 32.24%, χ~2 = 6.560, P = 0.010), 9 mo(9.17% vs 31.27%, χ~2 = 5.357, P =0.021), and 12 mo(8.21% vs 28.01, χ~2 = 3.848, P = 0.051). There were no significant differences between groups A and B at 3 years(6.61% vs 7.16%, χ~2 = 1.204, P =0.272) and 5 years(5.01% vs 6.18%, χ~2 = 0.072, P = 0.562). The total survival rate did not differ between groups A and B(χ~2 = 0.226, P = 0.634, log-rank test).CONCLUSION Targeted puncture of the left branch of the intrahepatic portal vein during TIPS may reduce the risk of HE but has no direct influence on prognosis of portalhypertension-related complications.

Passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts and assessment of clinical outcomes

AIM To assess for passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts(TIPS) and compare outcomes with maximally dilated TIPS.METHODS Polytetrafluoroethylene covered TIPS(Viatorr) from July 2002 to December 2013 were retrospectively reviewed at two hospitals in a single institution. Two hundred and thirty patients had TIPS maximally dilated to 10 mm(m TIPS), while 43 patients who were at increased risk for hepatic encephalopathy(HE), based on clinical evaluation or low pre-TIPS portosystemic gradient(PSG), had 10 mm TIPS sub-maximally dilated to 8 mm(sm TIPS). Group characteristics(age, gender, Model for End-Stage Liver Disease score, post-TIPS PSG and clinical outcomes were compared between groups, including clinical success(ascites or varices), primary patency,primary assisted patency, and severe post-TIPS HE. A subset of fourteen patients with sm TIPS underwent follow-up computed tomography imaging after TIPS creation, and were grouped based on time of imaging(< 6 mo and > 6 mo). Change in diameter and crosssectional area were measured with 3D imaging software to evaluate for passive expansion.RESULTS Patient characteristics were similar between the sm TIPS and m TIPS groups, except for pre-TIPS portosystemic gradient, which was lower in the sm TIPS group(19.4 mm Hg ± 6.8 vs 22.4 mm Hg ± 7.1, P = 0.01). Primary patency and primary assisted patency between sm TIPS and m TIPS was not significantly different(P = 0.64 and 0.55, respectively). Four of the 55 patients(7%) with sm TIPS required TIPS reduction for severe refractory HE, while this occurred in 6 of the 218 patients(3%) with m TIPS(P = 0.12). For the 14 patients with follow-up computed tomography(CT) imaging, the median imaging follow-up was 373 d. There was an increase in median TIPS diameter, median percent diameter change, median area, and median percent area change in patients with CT follow-up greater than 6 mo after TIPS placement compared to follow-up within 6 mo(8.45 mm, 5.58%, 56.04 mm^2, and 11.48%, respectively, P = 0.01).CONCLUSION Passive expansion of sm TIPS does occur but clinical outcomes of sm TIPS and m TIPS were similar. Sub-maximal dilation can prevent complications related to overshunting in select patients.

Clinical efficacy of transjugular intrahepatic portosystemic shunt created through left or right branches of the portal vein:A meta-analysis

Background and aim:Transjugular intrahepatic portosystemic shunt(TIPS)is a technique successfully used to treat portal hypertension and its complications.However,the choice of the branch,left(L)or right(R),of the portal vein resulting in a better outcome is still under debate.Therefore,this meta-analysis aims to evaluate which branch has a better curative effect on patients treated with TIPS.Methods:PubMed,EMBASE,Web of science,Cochrane Library databases,Wanfang database and CBM were used for our search in October 2019 and updated in June 2021.The following parameters were used in evaluation:overall mortality,hepatic encephalopathy,shunt dysfunction,variceal rebleeding and rate of postoperative ascites.Results:There were seven studies included.The sample size was 1940.A lower risk of mortality was observed in TIPS-L-treated patients compared with TIPS-R-treated ones(OR=0.65,95%CI=0.50-0.85,p=0.002).A lower risk of shunt dysfunction was observed in TIPS-L-treated patients compared with TIPS-R-treated ones(OR=0.53,95%CI=0.33-0.87,p=0.01).And the TIPS-L group had a significantly higher hepatic encephalopathy-free rate than the TIPS-R group(OR=0.59,95%CI=0.44-0.78,p=0.0002).However,the rate of rebleeding(OR=0.75,95%CI=0.55-1.03,p=0.07)and incidence of postoperative ascites(OR=1.14,95%CI=0.86-1.51,p=0.38)was not statistically significant between the two groups.Conclusions:Based on the currently available evidence,the technique of TIPS through the left branch of the portal vein can significantly reduce the occurrence of overall postoperative mortality,hepatic encephalopathy and shunt dysfunction.

Transjugular intrahepatic portosystemic stent shunt for medically refractory hepatic hydrothorax:A systematic review and cumulative meta-analysis

AIM:To assess the effectiveness of transjugular intrahepatic portosystemic stent shunt(TIPSS) in refractory hepatic hydrothorax(RHH) in a systematic review and cumulative meta-analysis.METHODS:A comprehensive literature search was conducted on MEDLINE,EMBASE,and Pub Med covering the period from January 1970 to August 2014.Two authors independently selected and abstracted data from eligible studies.Data were summarized using a random-effects model.Heterogeneity was assessed using the I2 test.RESULTS:Six studies involving a total of 198 patients were included in the analysis.The mean(SD) age of patients was 56(1.8) years.Most patients(56.9%) had Child-Turcott-Pugh class C disease.The mean duration of follow-up was 10 mo(range,5.7-16 mo).Response to TIPSS was complete in 55.8%(95%CI:44.7%-66.9%),partial in 17.6%(95%CI:10.9%-24.2%),and absent in 21.2%(95%CI:14.2%-28.3%).The mean change in hepatic venous pressure gradient post-TIPSS was 12.7 mm Hg.The incidence of TIPSS-related encephalopathy was 11.7%(95%CI:6.3%-17.2%),and the 45-d mortality was 17.7%(95%CI:11.34%-24.13%).CONCLUSION:TIPSS is associated with a clinically relevant response in RHH.TIPSS should be considered early in these patients,given its poor prognosis.

Prevention and treatment of hepatic encephalopathy during the perioperative period of transjugular intrahepatic portosystemic shunt

Transjugular intrahepatic portosystemic shunt(TIPS)is an established procedure for treating the complications of portal hypertension in liver cirrhosis.While the pathogenesis of postoperative TIPS-related hepatic encephalopathy(HE)has yet to be fully understood,intraoperative portosystemic shunts may provide a pathological basis for the occurrence of postope-rative HE in patients with liver cirrhosis.Studies at home and abroad have expressed mixed opinions about TIPSrelated HE.This study presents a literature review on the risk factors for and prevention and treatment of perioperative TIPS-related HE in patients with liver cirrhosis,aiming to optimize the procedure and reduce the incidence of postoperative HE.

Computed tomography perfusion in differentiating portal hypertension: A correlation study with hepatic venous pressure gradient

BACKGROUND Hepatic venous pressure gradient(HVPG)is the gold standard for diagnosis of portal hypertension(PH),invasiveness and potential risks in the process of measurement limited its widespread use.AIM To investigate the correlation of computed tomography(CT)perfusion parameters with HVPG in PH,and quantitatively assess the blood supply changes in liver and spleen parenchyma before and after transjugular intrahepatic portosystemic shunt(TIPS).METHODS Twenty-four PH related gastrointestinal bleeding patients were recruited in this study,and all patients were performed perfusion CT before and after TIPS surgery within 2 wk.Quantitative parameters of CT perfusion,including liver blood volume(LBV),liver blood flow(LBF),hepatic arterial fraction(HAF),spleen blood volume(SBV)and spleen blood flow(SBF),were measured and compared before and after TIPS,and the quantitative parameters between clinically significant PH(CSPH)and non-CSPH(NCSPH)group were also compared.Then the correlation of CT perfusion parameters with HVPG were analyzed,with statistical significance as P<0.05.RESULTS For all 24 PH patients after TIPS,CT perfusion parameters demonstrated decreased LBV, increased HAF, SBV and SBF, with no statistical difference in LBF. Compared withNCSPH, CSPH showed higher HAF, with no difference in other CT perfusion parameters. HAFbefore TIPS showed positive correlation with HVPG (r = 0.530, P = 0.008), while no correlation wasfound in other CT perfusion parameters with HVPG and Child-Pugh scores.CONCLUSIONHAF, an index of CT perfusion, was positive correlation with HVPG, and higher in CSPH thanNCSPH before TIPS. While increased HAF, SBF and SBV, and decreased LBV, were found afterTIPS, which accommodates a potential non-invasive imaging tool for evaluation of PH.

Selection of a TIPS stent for management of portal hypertension in liver cirrhosis: An evidence-based review

Nowadays,transjugular intrahepatic portosystemic shunt(TIPS)has become a mainstay treatment option for the management of portal hypertension-related complications in liver cirrhosis.Accumulated evidence has shown that its indications are being gradually expanded.Notwithstanding,less attention has been paid for the selection of an appropriate stent during a TIPS procedure.Herein,we attempt to review the current evidence regarding the diameter,type,brand,and position of TIPS stents.Several following recommendations may be considered in the clinical practice:(1)a 10-mm stent may be more effective than an 8-mm stent for the management of portal hypertension,and may be superior to a 12-mm stent for the improvement of survival and shunt patency;(2)covered stents are superior to bare stents for reducing the development of shunt dysfunction;(3)if available,Viatorr stent-grafts may be recommended due to a higher rate of shunt patency;and(4)the placement of a TIPS stent in the left portal vein branch may be more reasonable for decreasingthe development of hepatic encephalopathy.However,given relatively low quality of evidence,prospective well-designed studies should be warranted to further confirm these recommendations.

Advancing hepatic recompensation:Baveno VII criteria and therapeutic innovations in liver cirrhosis management

The Baveno VII criteria redefine the management of decompensated liver cirrhosis,introducing the concept of hepatic recompensation marking a significant departure from the conventional view of irreversible decline.Central to this concept is addressing the underlying cause of cirrhosis through tailored therapies,including antivirals and lifestyle modifications.Studies on alcohol,hepatitis C virus,and hepatitis B virus-related cirrhosis demonstrate the efficacy of these interventions in improving liver function and patient outcomes.Transjugular intrahepatic portosystemic shunt(TIPS)emerges as a promising intervention,effectively resolving complications of portal hypertension and facilitating recompensation.However,optimal timing and patient selection for TIPS remain unresolved.Despite challenges,TIPS offers renewed hope for hepatic recompensation,marking a significant advancement in cirrhosis management.Further research is needed to refine its implementation and maximize its benefits.In conclusion,TIPS stands as a promising avenue for improving hepatic function and patient outcomes in decompensated liver cirrhosis within the framework of the Baveno VII criteria.

不同方式联合TACE治疗原发性肝癌合并上消化道出血的临床疗效

目的比较经颈内静脉肝内门体分流术(transjugular intrahepatic portal systemic shunt TIPS)、内镜治疗及药物治疗3种不同方式联合经肝动脉化疗栓塞术(transhepatic arterial chemoembolization TACE)对原发性肝癌合并门静脉高压、上消化道出血的临床疗效。方法纳入2014年1月至2020年6月联勤保障部队第九八〇医院原发性肝癌合并门静脉高压、上消化道出血患者105例,根据治疗方式分为TIPS联合TACE组25例,内镜联合TACE组30例,药物联合TACE组50例。比较3种不同治疗方式联合TACE治疗肝癌合并上消化道出血的临床疗效、出血复发率、肝性脑病发生率及生存率。结果3组患者治疗后6、12和24个月出血复发率差异有统计学意义(均P<0.05)。TIPS组患者治疗前门静脉压力为(38.47±9.35)mmHg(1 mmHg=0.133 kPa),治疗后为(25.24±5.68)mmHg,差异有统计学意义(P<0.05)。治疗后3组患者血红蛋白均不同程度升高,TIPS组及内镜组优于药物组,差异有统计学意义(P<0.05)。TIPS组术后6、12和24个月出血复发率低于内镜组及药物组,差异有统计学意义(P<0.05);12个月和24个月出血复发率低于内镜组,差异有统计学意义(P<0.05);内镜组12个月及24个月出血复发率低于药物组(P<0.05),两组6个月内出血复发率差异无统计学意义(P>0.05)。TIPS组6个月和12个月肝性脑病发生率高于内镜组及药物组,差异有统计学意义(P<0.05),内镜组与药物组差异无统计学意义(P>0.05);3组患者24个月肝性脑病发生率差异无统计学意义(P>0.05)。TIPS组与内镜组6个月病死率差异无统计学意义(P>0.05),两组均低于药物组,且差异有统计学意义(P<0.05);TIPS组12个月及24个月病死率低于内镜组及药物组,差异有统计学意义(P<0.05);内镜组与药物组差异无统计学意义(P>0.05)。结论TIPS联合TACE治疗原发性肝癌合并上消化道出血可降低上消化道出血复发率,有效控制肿瘤进展,延长生存期。

消化内镜序贯TIPS在肝硬化急性食管胃静脉曲张破裂出血中的应用研究

目的评估内镜序贯经颈静脉肝内门体分流术(TIPS)治疗肝硬化急性食管胃静脉曲张破裂出血(EGVB)的安全性及有效性。方法将2019年9月—2021年3月接受内镜序贯TIPS治疗的肝硬化急性EGVB 31例作为内镜序贯TIPS组,将接受单纯内镜序贯治疗的46例作为内镜序贯组。观察内镜序贯TIPS组门静脉压力梯度变化情况,比较2组静脉曲张改善程度及肝功能变化,术后1、3、6、12个月再出血率及肝性脑病发生率,随访结束后分析2组生存情况。结果内镜序贯TIPS组术后门静脉压力梯度低于术前(P<0.01)。内镜序贯TIPS组术后丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)术后1个月高于其他时点(P<0.05),术后3个月开始下降;内镜序贯TIPS组术后血清胆红素升高,术后3个月直接胆红素(DBIL)和间接胆红素(IBIL)升至高峰,术后6个月逐渐下降(P<0.05)。内镜序贯组术后3、7 d ALT、AST较术前降低,ALB较术前升高(P<0.05);术后1个月总胆红素(TBIL)水平低于术前(P<0.05);术后7 d及术后1、3个月DBIL低于术前(P<0.05)。2组术后静脉曲张根除率比较差异无统计学意义(P>0.05)。内镜序贯TIPS组术后6、12个月再出血率低于内镜序贯组(P<0.01);2组术后肝性脑病发生率及术后1年生存率比较差异均无统计学意义(P>0.05)。结论TIPS可降低门静脉压力,静脉曲张根除率与内镜序贯治疗相当,但可有效降低再出血率,而并不降低生存率且不增加肝性脑病发生率。内镜序贯TIPS治疗肝硬化EVGB安全有效。

TIPS术治疗的肝硬化患者肝性脊髓病临床特征及其影响因素分析

目的观察经颈静脉肝内门体分流术(TIPS)治疗的肝硬化并发门静脉脉高压症患者术后肝性脊髓病(HM)的临床特征,并分析HM发病的危险因素。方法2017年4月~2022年10月我院收治的526例接受过TIPS治疗的肝硬化并发门静脉高压症患者,随访记录术后HM发生情况,应用二元Logistic回归模型分析影响TIPS术后HM发生的危险因素。结果在TIPS术后中位随访28(7~72)个月,发生HM者41例(7.8%),其中男性33例,女性8例,发病年龄为50(40,71)岁;并发肝性脑病(HE)34例(82.9%)、门静脉血栓13例(31.7%)、食管胃底静脉曲张破裂出血6例(14.6%);脊髓功能受损表现为肌力下降31例(75.6%,腱反射亢进21例(51.2%)、肌张力增高23例(56.1%)、病理征阳性22例(53.7%)、主观下肢麻木2例(4.9%)、肛门括约肌功能障碍1例(2.4%);死亡23例;绘制Kaplan-Meier生存曲线,HM患者1 a和3 a累积生存率分别为82.9%和58.5%;随机选择82例未发生HM患者为对照,结果HM组年龄和MELD评分分别为(50.9±12.9)岁和(11.3±2.6)分,显著高于对照组【分别为(47.0±11.3)岁和(10.1±2.1)分,P<0.05】,HM组男性、脾切除术、发生HE、PT延长和血氨升高占比分别为80.5%、26.8%、82.9%、51.2%和92.2%,显著高于非HM组的61.0%、12.2%、47.6%、31.7%和67.1%(P<0.05);二元多因素Logistic回归分析显示男性(OR=2.250,95%CI:1.654~3.735)、脾切除术(OR=1.840,95%CI:1.120~2.298)、血氨升高(OR=1.122,95%CI:1.054~1.605)和发生HE(OR=3.442,95%CI:2.248~6.779)是影响TIPS术后发生HM的独立危险因素(P<0.05)。结论肝硬化门静脉脉高压患者在接受TIPS术后有发生HM的风险,主要见于男性,了解风险因素并予以干预是今后研究的重点。

经颈静脉肝内门体静脉分流术降低门静脉高压对外周免疫细胞的影响及免疫变化与肝性脑病的关系

目的本研究旨在分析经颈静脉肝内门体静脉分流术(transjugular intrahepatic portosystemic shunt,TIPS)降低门静脉高压对外周免疫细胞的影响及免疫变化与肝性脑病的关系。方法收集2020年10月—2022年10月在解放军总医院第五医学中心行TIPS治疗的39例肝硬化患者的临床资料,包括TIPS术前、术后1周及术后12周的实验室检查结果,以及肝性脑病的发生情况,分析外周免疫细胞的变化情况及其与肝性脑病的相关性。结果与基线相比,TIPS术后1周,白细胞(white blood cell,WBC)、中性粒细胞绝对值(absolute neutrophil cell,ANC)、单核细胞绝对值(absolute monocytes cell,AMC)、CD8+T细胞水平均升高,差异有统计学意义(P均<0.05);术后12周,WBC、CD8+T细胞、T淋巴细胞水平均升高,差异有统计学意义(P均<0.05)。单因素Logistic回归分析表明,年龄≥57岁(P=0.020)、TIPS术后1周丙氨酸氨基转移酶(alanine aminotransferase,ALT)≥1 ULN(正常上限值)(P=0.041)、TIPS前中度贫血(P=0.083)和TIPS术后1周ANC<1 ULN(P=0.051)可能是肝性脑病发生的危险因素。将上述因素纳入多因素Logistic回归分析,结果显示年龄≥57岁(OR=8.333,95%CI:1.474~47.114)、TIPS术后1周ALT≥1 ULN(OR=7.433,95%CI:1.257~43.949)是肝性脑病发生的风险因素,TIPS术后1周ANC<1 ULN(OR=0.140,95%CI:0.025~0.987)是肝性脑病发生的保护因素。使用受试者工作特征(receiver operatingcharacteristic,ROC)曲线评估预测准确性,结果提示TIPS术后1周ANC<1 ULN的ROC曲线下面积为0.835(95%CI:0.695~0.974,P=0.000),提示具有较显著的预测价值。结论WBC、CD8+T细胞水平在TIPS术后1周及12周增加;ANC、AMC水平在TIPS术后1周增加,术后12周恢复。中性粒细胞绝对值的早期变化可以预测肝性脑病的发生。

经肝段下腔静脉入路经颈静脉肝内门体分流术的适应证及解剖基础

目的 探讨肝硬化门静脉高压患者肝静脉与门静脉间存在解剖异常时 ,行经肝段下腔静脉直接穿刺门静脉分支 ,完成经颈静脉肝内门体分流术 (TIPS)的适应证及相关解剖基础 ,评估其安全性和可行性。方法 6 5例肝硬化门静脉高压患者行经肝段下腔静脉直接穿刺门静脉完成TIPS分流术。静脉曲张出血 5 2例 ,难治性腹水 12例 ,等待肝移植 1例。结果 6 5例经肝段下腔静脉TIPS分流术均获成功 ,技术成功率 10 0 % ,未出现术中技术相关并发症 ,1年内初步开通率明显高于常规TIPS。结论 经肝段下腔静脉入路TIPS技术用于肝静脉与门静脉间解剖异常病例是安全可行的 ,结果提示由于肝内分流道曲度较小 ,1年内支架初步开通率明显提高。

聚四氟乙烯覆膜支架TIPS术后肝性脑病及其影响因素

目的探讨聚四氟乙烯(PTFE)覆膜支架TIPS术后肝性脑病(HE)的发生率及其影响因素。方法收集102例门静脉高压症患者,应用PTFE覆膜支架行TIPS术。术后定期随访,采用寿命表法观察术后HE发生率,采用Cox回归分析HE影响因素。结果 TIPS在全部患者均获得成功。术后平均门静脉压为(2.37±0.29)kPa,较术前明显下降(t=22.8,P<0.01)。随访期间27例(27/102,26.47%)确诊出现HE,术后6、12、24、36及48个月HE累积发生率分别为7%、21%、34%、46%及66%。术前肝功能Child-Pugh分级(P<0.001)和支架术后门静脉显影情况(P=0.007)为HE的显著影响因素。结论 PTFE覆膜支架TIPS术后HE发生率较高。术前肝功能Child-Pugh分级差,术后门静脉分支均不显影的患者术后HE发生率明显升高。