DDLT, deceased donor liver transplantation

  • 文章类型: Journal Article
    当前的SARS-COV-2大流行导致DDLT和LDLT环境中的肝脏捐赠和移植急剧下降。由于需要保护捐赠者的利益,活体捐赠比死者的器官捐赠减少得更多。在SARS-COV-2大流行中,全球主要专业协会建议不要使用患有急性呼吸道综合症冠状病毒-2(SARS-CoV-2)感染的捐献者的器官。这些建议的基础是:SARS-CoV-2可以通过器官移植传播给接受者,并可能导致严重的表现;只有有限的有效靶向治疗可用,传播给医疗保健专业人员的风险,后勤限制,和伦理问题。此外,候补名单上的终末期肝病患者代表弱势人群,发生严重COVID-19感染的风险较高.因此,在大流行期间推迟来自COVID阳性捐赠者的拯救生命的移植可能会导致更多的附带损害,导致疾病进展,死亡增加,从等待名单中退出。由于这次SARS-COV-2大流行可能会持续一段时间,我们必须学会与它共存。我们认为,利用来自轻度/无症状COVID19阳性供体的器官可能会扩大器官供体库,并减轻这次大流行期间移植服务的中断。
    The current SARS-COV-2 pandemic led to a drastic drop in liver donation and transplantation in DDLT and LDLT settings. Living donations have decreased more than deceased organ donation due to the need to protect the interest of donors. In the SARS-COV-2 pandemic, major professional societies worldwide recommended against the use of organs from donors with acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. The basis for these recommendations are; SARS-CoV-2 could be transmitted to the recipient through organ transplantation and can result in severe manifestations; only limited effective targeted therapies are available, risk of transmission to the healthcare professionals, logistical limitations, and ethical concerns. In addition, end-stage liver disease patients on the waiting list represent vulnerable populations and are at higher risk for severe COVID-19 infection. Therefore, deferring life-saving transplants from COVID-positive donors during a pandemic may lead to more collateral damage by causing disease progression, increased death, and dropout from the waitlist. As this SARS-COV-2 pandemic is likely to stay with us for some time, we have to learn to co-exist with it. We believe that utilizing organs from mild/ asymptomatic COVID19 positive donors may expand the organ donor pool and mitigate disruptions in transplantation services during this pandemic.
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  • 文章类型: Journal Article
    死亡的供体肝移植(DDLT)在印度正在增加,现在占该国所有肝移植手术的近三分之一。目前没有统一的全国捐献者肝脏分配制度。
    在印度肝移植学会的主持下,成立了一个由来自全国各地的19名参与肝移植的临床医生组成的国家工作队,目的是使用改良的德尔菲共识制定过程来解决上述问题。
    国家肝脏分配政策共识文件包括46个声明,涵盖了DDLT的所有方面,包括最低上市标准,急性肝衰竭上市,DDLT等待列表管理,基于成人和儿童临床紧迫性的优先排序系统,儿科器官分配指南和从公共部门医院回收的肝移植物的分配优先级。
    该文件是建立全国一致的已故供体肝脏分配政策的第一步。
    UNASSIGNED: Deceased donor liver transplantation (DDLT) is increasing in India and now constitutes nearly one-third of all liver transplantation procedures performed in the country. There is currently no uniform national system of allocation of deceased donor livers.
    UNASSIGNED: A national task force consisting of 19 clinicians involved in liver transplantation from across the country was constituted under the aegis of the Liver Transplantation Society of India to develop a consensus document addressing the above issues using a modified Delphi process of consensus development.
    UNASSIGNED: The National Liver Allocation Policy consensus document includes 46 statements covering all aspects of DDLT, including minimum listing criteria, listing for acute liver failure, DDLT wait-list management, system of prioritisation based on clinical urgency for adults and children, guidelines for allocation of paediatric organs and allocation priorities for liver grafts recovered from public sector hospitals.
    UNASSIGNED: This document is the first step in the setting up of a nationally consistent policy of deceased donor liver allocation.
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  • 文章类型: Journal Article
    可行性数据,管理,和肝移植的结果(LT)的患者预先存在左心室收缩功能障碍(LVSD),严重冠状动脉疾病(CAD)或肝硬化心肌病(CCM)很少见。
    我们回顾了2010年7月至2018年7月进行的1946年LDLT系列中LVSD(射血分数[EF]<50%)受者活体肝移植(LDLT)的结果。
    在12名平均年龄的男性患者中检测到LVSD,BMI和MELD为52±9岁,25±5kg/m2,19±4。在这些中,6例患者有CAD(2例既往有冠状动脉旁路移植术,1在最近的经皮冠状动脉腔内成形术后,2心肌梗死后,1个非关键CAD),和6有CCM。EF范围从25%到45%。乙醇是肝硬化的主要潜在病因(50%)。在LDLT期间,2例患者出现了室性异位心律,并通过静脉注射利多卡因成功治疗。应激性心肌病表现为3例患者术后EF降低,其中2个改进,而1个需要IABP支持并在术后第8天(POD)死于多器官衰竭。另一名患者因感染性休克而死于POD30。这些患者都有较高的MELD评分(实际MELD),极端的BMI(17.3和35.8kg/m2)和糖尿病。没有长期的心脏死亡。1年,5年生存率为75%,66%,分别。
    在潜在的LVSD患者中,那些具有稳定的CAD和良好的性能状态,经过精心优化的CCM患者在有经验的中心进行仔细的风险分层后,可考虑进行LDLT治疗.
    UNASSIGNED: Data on feasibility, management, and outcomes of liver transplantation (LT) in patients with pre-existing left ventricular systolic dysfunction (LVSD), severe coronary artery disease (CAD) or cirrhotic cardiomyopathy (CCM) is scarce.
    UNASSIGNED: We reviewed outcomes of living donor liver transplantation (LDLT) in recipients with LVSD (ejection fraction [EF] < 50%) from our series of 1946 LDLT\'s performed between July 2010 and July 2018.
    UNASSIGNED: LVSD was detected in 12 male patients with a mean age, BMI and MELD of 52 ± 9 years, 25 ± 5 kg/m2, and 19 ± 4 respectively. Out of these, 6 patients had CAD (2 with previous coronary artery bypass graft, 1 following recent percutaneous transluminal coronary angioplasty, 2 post myocardial infarction, 1 noncritical CAD), and 6 had CCM. The EF ranged from 25% to 45%. Ethanol was the predominant underlying etiology for cirrhosis (50%). During LDLT, 2 patients developed ventricular ectopic rhythm and were managed successfully with intravenous lidocaine. Stress cardiomyopathy manifested in 3 patients post operatively with decreased EF, of which 2 improved, while 1 needed IABP support and succumbed to multiorgan failure on 8th postoperative day (POD). Another patient died on POD30 due to septic shock. Both these patients had higher MELD scores (actual MELD), extremes of BMI (17.3and 35.8 kg/m2) and were diabetic. There were no long-term cardiac deaths. The 1-year, and 5-year survival were 75%, and 66%, respectively.
    UNASSIGNED: Among potential LT recipients with LVSD, those with stable CAD and good performance status, and well optimized CCM patients may be considered for LDLT after careful risk stratification in experienced centers.
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  • 文章类型: Journal Article
    未经证实:急性肾损伤(AKI)在围手术期移植期间很常见,并与不良预后相关。很少有研究报道特利加压素治疗通过抵消肝移植过程中发生的血液动力学改变而降低AKI发生率。然而,特利加压素对移植后结局的影响尚未得到系统评价.
    UNASSIGNED:对电子数据库进行了全面搜索。包括报告在活体肝移植围手术期使用特利加压素的研究。我们将二分法结果表示为风险比(RR,95%置信区间[CI])使用随机效应模型。主要目的是评估移植后AKI的风险。次要目的是评估肾脏替代疗法(RRT)的需求,血管升压药,对血液动力学的影响,手术过程中失血,住院和重症监护病房(ICU)和住院死亡率。
    UNASSIGNED:共纳入9项研究报告711例患者(特利加压素组309例患者和对照组402例患者)进行分析。术后给予特利加压素的平均持续时间为53.44±28.61h。特利加压素组发生AKI的风险较低(0.6[95%CI,0.44-0.8];P=0.001)。然而,敏感性分析仅包括4项随机对照试验(I2=0;P=0.54),两组的AKI风险相似(0.7[0.43-1.09];P=0.11).两组的RRT需求相似(0.75[0.35-1.56];P=0.44)。特利加压素治疗减少了对另一种血管加压药的需求(0.34[0.25-0.47];P<0.001),同时平均动脉压和全身血管阻力升高3.2mmHg(1.64-4.7;P<0.001)和77.64dynecm-1。秒-5(21.27-134;P=0.007),分别。失血,住院/ICU住院时间,两组的死亡率相似.
    未经批准:围手术期特利加压素治疗没有临床相关益处。
    UNASSIGNED: Acute kidney injury (AKI) is common in the perioperative transplant period and is associated with poor outcomes. Few studies reported a reduction in AKI incidence with terlipressin therapy by counteracting the hemodynamic alterations occurring during liver transplantation. However, the effect of terlipressin on posttransplant outcomes has not been systematically reviewed.
    UNASSIGNED: A comprehensive search of electronic databases was performed. Studies reporting the use of terlipressin in the perioperative period of living donor liver transplantation were included. We expressed the dichotomous outcomes as risk ratio (RR, 95% confidence interval [CI]) using the random effects model. The primary aim was to assess the posttransplant risk of AKI. The secondary aims were to assess the need for renal replacement therapy (RRT), vasopressors, effect on hemodynamics, blood loss during surgery, hospital and intensive care unit (ICU) stay, and in-hospital mortality.
    UNASSIGNED: A total of nine studies reporting 711 patients (309 patients in the terlipressin group and 402 in the control group) were included for analysis. Terlipressin was administered for a mean duration of 53.44 ± 28.61 h postsurgery. The risk of AKI was lower with terlipressin (0.6 [95% CI, 0.44-0.8]; P = 0.001). However, on sensitivity analysis including only four randomized controlled trials (I2 = 0; P = 0.54), the risk of AKI was similar in both the groups (0.7 [0.43-1.09]; P = 0.11). The need for RRT was similar in both the groups (0.75 [0.35-1.56]; P = 0.44). Terlipressin therapy reduced the need for another vasopressor (0.34 [0.25-0.47]; P < 0.001) with a concomitant rise in mean arterial pressure and systemic vascular resistance by 3.2 mm Hg (1.64-4.7; P < 0.001) and 77.64 dyne cm-1.sec-5 (21.27-134; P = 0.007), respectively. Blood loss, duration of hospital/ICU stay, and mortality were similar in both groups.
    UNASSIGNED: Perioperative terlipressin therapy has no clinically relevant benefit.
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  • 文章类型: Journal Article
    背景:活体肝移植(LDLT)后早期同种异体移植功能障碍(EAD)的理想定义仍然难以捉摸。本研究的目的是比较现有EAD定义的诊断准确性,确定EAD早期移植物丢失的预测因子,制定一个新的定义,评估LDLT受者EAD相关死亡率。
    方法:对连续接受择期LDLT的成年患者进行分析。技术患者(血管,胆道)并发症和活检证实的排斥反应被排除。
    结果:在总共304例患者中,有19例死于EAD。在应用EAD的现有定义时,我们揭示了它们在LDLT患者中的局限性,要么过于宽泛,特异性低,要么过于严格,敏感性低.EAD-LDLT的新定义(总胆红素>10mg/dL,国际标准化比率[INR]>1.6,血清尿素>100mg/dL,第7天)后连续五天进行多变量分析。在接收机运营商特征分析中,EAD-LDLT的AUC为0.86。新模型的校准和内部交叉验证证实了其可预测性。
    结论:EAD-LDLT的新模型,基于总胆红素>10mg/dL,INR>1.6和血清尿素>100mg/dL,第7天后连续5天,对LDLT受者因EAD导致的死亡率具有更好的预测价值.
    BACKGROUND: An ideal definition of early allograft dysfunction (EAD) after live donor liver transplantation (LDLT) remains elusive. The aim of the present study was to compare the diagnostic accuracies of existing EAD definitions, identify the predictors of early graft loss due to EAD, and formulate a new definition, estimating EAD-related mortality in LDLT recipients.
    METHODS: Consecutive adult patients undergoing elective LDLT were analyzed. Patients with technical (vascular, biliary) complications and biopsy-proven rejections were excluded.
    RESULTS: There were 19 deaths due to EAD of a total of 304 patients. On applying the existing definitions of EAD, we revealed their limitations of being either too broad with low specificity or too restrictive with low sensitivity in patients with LDLT. A new definition of EAD-LDLT (total bilirubin >10 mg/dL, international normalized ratio [INR] > 1.6 and serum urea >100 mg/dL, for five consecutive days after day 7) was derived after doing a multivariate analysis. In receiver operator characteristics analysis, an AUC for EAD-LDLT was 0.86. The calibration and internal cross-validation of the new model confirmed its predictability.
    CONCLUSIONS: The new model of EAD-LDLT, based on total bilirubin >10 mg/dL, INR >1.6 and serum urea >100 mg/dL, for five consecutive days after day 7, has a better predictive value for mortality due to EAD in LDLT recipients.
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  • 文章类型: Journal Article
    背景:在过去的十年中,摄入含黄磷的杀鼠剂引起的急性肝衰竭的发病率一直在增加,并且是印度南部和西部及其他国家紧急肝移植的常见指征。其管理需要明确的指导方针,鉴于其不可预测的过程,在临床实践中迅速恶化和变化的可能性。
    方法:在印度肝移植学会的主持下,采用改良的Delphi方法制定共识指南。对已发表的文献进行了详细的回顾。关于临床实践三个领域的建议,评估和初始管理,重症监护病房(ICU)管理和肝移植,是开发的。
    结果:专家小组由16名临床医生组成,来自11个中心的3名非临床专家和5名高级顾问。关于入院和出院标准的31项建议,药物治疗的作用,ICU管理,体外治疗的证据,如肾脏替代疗法和治疗性血浆置换,根据已发表的证据和结合的临床经验,制定了需要肝移植和围手术期护理的早期预测因子.
    结论:制定这些指南应有助于规范黄磷中毒患者的护理,并确定合作研究领域。
    BACKGROUND: Acute liver failure caused by the ingestion of yellow phosphorus-containing rodenticide has been increasing in incidence over the last decade and is a common indication for emergency liver transplantation in Southern and Western India and other countries. Clear guidelines for its management are necessary, given its unpredictable course, potential for rapid deterioration and variation in clinical practice.
    METHODS: A modified Delphi approach was used for developing consensus guidelines under the aegis of the Liver Transplantation Society of India. A detailed review of the published literature was performed. Recommendations for three areas of clinical practice, assessment and initial management, intensive care unit (ICU) management and liver transplantation, were developed.
    RESULTS: The expert panel consisted of 16 clinicians, 3 nonclinical specialists and 5 senior advisory members from 11 centres. Thirty-one recommendations with regard to criteria for hospital admission and discharge, role of medical therapies, ICU management, evidence for extracorporeal therapies such as renal replacement therapy and therapeutic plasma exchange, early predictors of need for liver transplantation and perioperative care were developed based on published evidence and combined clinical experience.
    CONCLUSIONS: Development of these guidelines should help standardise care for patients with yellow phosphorus poisoning and identify areas for collaborative research.
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  • 文章类型: Journal Article
    肝移植(LT)受者的生存率在短期内得到了显着提高。长期死亡的主要原因包括非免疫原因,如心血管疾病,从头恶性肿瘤,慢性肾病,原发疾病复发。在LT后的长期内,排斥相关的死亡率很少见。我们讨论了长期发病率/死亡率的非排斥原因,危险因素,和LT收件人的管理策略。此外,我们讨论骨质疏松症,避孕,和LT接受者的怀孕。
    The survival of liver transplantation (LT) recipients has been improved remarkably in short-term. The major causes of mortality in long-term include nonimmunological causes such as cardiovascular, de novo malignancy, chronic kidney disease, and recurrence of primary disease. Rejection-related mortality is rare in the long-term after LT. We discuss nonrejection causes of long-term morbidity/mortality, risk factors, and management strategies in LT recipients. In addition, we discuss osteoporosis, contraception, and pregnancy in LT recipients.
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  • 文章类型: Journal Article
    我们描述了我们的离体器官灌注和在已故脑死亡(DBD)供体后的捐赠中的获取技术。
    这项技术包括热解剖肝脏,肾脏,和心,在血液动力学稳定的DBD供体中进行体外灌注。心脏和腹部夹层可以同时进行。作为预防措施,解剖髂动脉和腹主动脉,并做好快速插管和灌注的准备,捐赠者在任何阶段都会变得不稳定。肝脏解剖原则上类似于活体肝切除术,其中门静脉解剖与上静脉和肝下静脉解剖相结合,以完全动员肝脏,使其能够被移除并离体灌注。肾解剖在肝解剖完成后进行。修改了器官恢复的顺序,首先采购肾脏,然后同时采购肝脏和心脏。
    已经进行了12次多内脏(全部为肝脏和肾脏,四个为心脏)采购。肝脏的平均灌注液量为3.4L。所有受者术后病程均顺利。
    我们的技术没有影响接受者的结果,并且减少使用保存解决方案的好处,缩短手术时间,并通过避免冷相解剖来减少采购伤害的倾向。
    UNASSIGNED: We describe our technique of ex vivo organ perfusion and procurement in donation after deceased brain death (DBD) donors.
    UNASSIGNED: This technique comprises warm dissection of liver, kidneys, and heart, in hemodynamically stable DBD donors and perfusing them ex vivo. The cardiac and abdominal dissection can take place simultaneously. As a precaution, the iliac arteries and the abdominal aorta are dissected and kept ready for rapid cannulation and perfusion, should the donor become unstable at any stage.The liver dissection is in principle similar to living donor hepatectomy, where portal dissection is combined with supra and infrahepatic caval dissection to completely mobilize liver to allow it to be removed and perfused ex vivo. The renal dissection is done after hepatic dissection is complete. The sequence of recovery of organ was modified where kidneys were procured first followed by hepatic and cardiac procurement simultaneously.
    UNASSIGNED: Twelve multivisceral (liver and kidneys in all and heart in four) procurements have been performed. The average perfusion fluid volume for liver was 3.4 L. All recipients had uneventful postoperative course.
    UNASSIGNED: Our technique has not affected recipient outcomes and with benefits of less use of preservation solution, shortening bench surgery time, and decreasing the propensity of procurement injuries by avoiding cold-phase dissection.
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  • 文章类型: Journal Article
    UNASSIGNED: Primary sclerosing cholangitis (PSC) is a progressive cholestatic disorder with liver transplantation (LT) being the only definitive treatment in end-stage disease. Recurrence of PSC after LT is a significant concern which can lead to graft loss. The aim of this study is to find out the disease recurrence and long-term outcome after living donor liver transplantation (LDLT) in PSC.
    UNASSIGNED: We conducted a retrospective review of all patients undergoing LDLT for PSC at our centre. Of 2268 adult LTs from August 2004 to July 2018, 32 (1.4%) patients underwent LDLT for PSC including 6 with PSC and autoimmune hepatitis overlap. The data were reviewed to look for PSC recurrence, complications, and overall survival. All patients received tacrolimus-based immunosuppression. Data are shown as number, percentage, median, and interquartile range (IQR).
    UNASSIGNED: The mean age of 32 LDLT recipients was 44 ± 12 years (males 22, females 10). At the time of transplantation, the mean child\'s score was 9 ± 1.6 and model for end-stage liver disease score was 18.9 ± 6.4. Ulcerative colitis was seen in 7 patients and none had cholangiocarcinoma. Majority of patients (n = 29) received right lobe graft and all but 3 underwent hepaticojejunostomy for biliary reconstruction. PSC recurrence was seen in 6 (20%) patients during a median follow-up of 59 (29-101) months, after exclusion of 2 patients with early mortality. A total of five patients died during follow-up, and one of these deaths was due to PSC recurrence. There were 2 perioperative deaths due to sepsis and 3 deaths on follow-up (sepsis in 2 and PSC recurrence in 1).
    UNASSIGNED: LDLT can be performed in PSC with good overall long-term outcomes.
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  • 文章类型: Journal Article
    2019冠状病毒病(COVID-19)病毒正在迅速传播,对包括移植受者在内的免疫受损患者群体有明显的担忧。提高认识和了解患者的担忧将在保护这一弱势群体制定及时和适当的医疗保健干预措施方面发挥重要作用。
    在2020年3月23日至2020年4月1日期间对154名肝移植受者进行了一项横断面在线调查。在2018年10月至2020年2月之间移植。一份18分的问卷探讨了他们对COVID-19的了解,对接受者高危状态的认识,减少交叉感染的干预措施,以及该患者群体对大流行的担忧。
    有112位(73%)受访者,年龄中位数为53岁(81%为男性)。回答的人(n=112)和未回答调查的人(n=42)之间的人口统计学没有差异。大多数接受者知道COVID-19的主要症状,如发烧(92%),呼吸困难(86%),干咳(87%),但不到一半的人意识到腹泻(39%)是一种症状。对无症状个体传播的认识有限(26%)。大多数(95%)了解他们的高风险状态,但令人担忧的是,23%的受访者认为前往医院进行常规临床访问和血液检查没有风险。受者主要对COVID-19感染及其治疗方案的不确定性表示担忧,社交消息平台上的信息质量,以及由于封锁/社交距离而无法获得常规测试/免疫抑制水平。
    我们的肝移植受者对COVID-19有合理的认识。在长期封锁期间访问医疗保健系统的问题是一个主要问题。对每个移植单位进行教育很重要,支持,并且随着大流行在全球范围内的持续发展,这个脆弱的患者队列仍然可以使用。
    UNASSIGNED: The coronavirus disease 2019 (COVID-19) virus is spreading rapidly, and there are obvious concerns for the immunocompromised patient population including transplant recipients. Creating awareness and understanding patient concerns will play an important role in protecting this vulnerable group in developing timely and appropriate healthcare interventions.
    UNASSIGNED: A cross-sectional online survey was conducted between 23rd March 2020 and 1st April 2020 among 154 liver transplant recipients, transplanted between October 2018 and February 2020. An 18-point questionnaire explored their knowledge of COVID-19, awareness of recipient\'s high-risk status, interventions to minimize cross-infections, and concerns of this patient group regarding the pandemic.
    UNASSIGNED: There were 112 (73%) respondents, with median age of 53 years (81% males). There was no difference in demographics between those who responded (n = 112) and those who did not respond to the survey (n = 42). Most of the recipients were aware of the main symptoms of COVID-19, such as fever (92%), breathlessness (86%), and dry cough (87%), but less than half were aware of diarrhea (39%) as a symptom. Awareness about spread from asymptomatic individuals was limited (26%). Majority (95%) understood their high-risk status, but worryingly, 23% of the respondents felt that there was no risk in visiting the hospital for routine clinic visit and blood tests. Concerns were raised by the recipients mostly regarding the uncertainties of COVID-19 infection and its treatment options, the quality of information on social messaging platforms, and lack of access to routine tests/immunosuppression levels because of lockdown/social distancing.
    UNASSIGNED: Our liver transplant recipients have a reasonable awareness regarding COVID-19. Problems in accessing the healthcare system during prolonged periods of lockdown was a major concern. It is important for each transplant unit to educate, support, and remain accessible to this vulnerable patient cohort as the pandemic continues to progress worldwide.
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