术前群体反应性抗体水平对肾移植接受率和术后长期疗效的影响

目的 探讨术前群体反应性抗体(PRA)水平对等待肾移植患者接受肾移植的比例和术后长期疗效的影响.方法 收集中山大学附属第一医院1998 年1 月到2012 年6 月等待肾移植的7 123 例尿毒症患者资料,根据术前PRA 水平的不同分为5 组:A 组6 124 例,PRA 阴性;B 组160 例,PRA ＜10%;C 组261 例,PRA 10%～29%;D 组374 例,PRA 30%～80%;E 组204 例,PRA ＞80%.比较5 组患者接受肾移植的比例,5 组患者中接受肾移植者的术前人类白细胞抗原(HLA)错配情况,术后患者和移植肾存活率,术后1 年估算肾小球滤过率(eGFR)情况,以及术后移植肾功能恢复延迟(DGF)、急性排斥、慢性排斥和感染等并发症的发生率.结果 A 组患者接受肾移植的比例为31.9%;随着PRA 水平升高,患者接受肾移植比例显著下降,E 组接受肾移植比例最低,为7.3%(P＜0.05).在接受肾移植的患者中,随着PRA水平升高,HLA 错配数显著降低.A 组和B 组术后急性排斥和慢性排斥发生率均显著低于E 组(均P＜0.05),各组DGF 和感染发生率差异无统计学意义(均P＞0.05).A 组的移植肾存活率优于E 组(1 年96.4%比89.5%,5 年76.8% 比63.4%,10 年59.7% 比47.3%,均P＜0.05),术后1 年eGFR 水平也优于E 组(66.7 mL/min 比45.3 mL/min,P＜0.05),但各组患者存活率差异无统计学意义(均P＞0.05).结论 术前PRA 水平越高,肾移植接受率越低,术后发生急性排斥和慢性排斥的风险越高,移植肾的长期预后也越差.     

肾移植术后早期肾功能恢复对人肾长期存活的影响

目的 探讨肾移植术后早期肾功能恢复情况对人肾长期存活的影响。方法 总结1990-1998年652例肾移植患者资料。根据肾功能恢复情况分为3组：肾功能恢复迅速（IGF）组（A组）473例，肾功能恢复缓慢未行透析治疗（SGF）组（B组）82例，肾功能延迟恢复（DGF）组（C组）97例。对3组患者5、10年人。肾存活率及1年急性排斥反应和带肾死亡情况进行比较分析。结果 A组5、10年人／肾存活率分别为74．0％／70．2％、66．9％／60．3％，B组为64．6％／61．0％、62．2％／42．2％，C组为60．8％／43．3％、55．7％／23．0％。5年人存活率A、B组高于C组，5年。肾存活率A组高于C组，5年人／肾存活率A、B组差异无统计学意义。10年人／肾存活率A组〉B组〉C组，差异均有统计学意义。3组1年急性排斥反应发生率为20．1％、30．5％、43．2％，组间差异有统计学意义。3组1年带肾死亡率为4．7％、4．9％、12．4％，A、B组〈C组，A、B组间差异无统计学意义。急性排斥反应和带肾死亡病例排除后进行比较，3组长期存活率差异无统计学意义。结论 肾移植术后早期肾功能恢复情况对移植患者长期人肾存活有明显影响，DGF患者的影响最明显，SGF预后介于IGF和DGF间。SGF和DGF对长期存活的影响可能源于移植早期较高的急性排斥反应或并发症发生率。     

尸肾移植1806例效果分析

目的探讨影响尸肾移植术后人/肾存活率的危险因素。方法对1984年2月至2003年12月1806例尸肾移植患者的临床资料进行总结,应用Kap lan-M e ier分析计算1、5、10、15和20年人/肾存活率和移植肾半寿期。对可能影响人/肾存活率的各因素,如受者性别、年龄、移植时间、移植次数、透析时间、乙型肝炎表面抗原、移植肾功能恢复延迟(DGF)、急性排斥、慢性排斥、感染、高血压、糖尿病和免疫抑制剂等进行Log-Rank单因素分析和Cox多因素回归分析,找出影响人/肾存活率的独立危险因素。结果总体1、5、10、15、20年人存活率分别为92.28%、87.20%、78.60%、63.45%、47.59%;肾存活率分别为84.61%、73.64%、57.31%、46.77%、31.18%;总体移植肾半寿期为(11.94±0.84)年。2001-2003年的1年人/肾存活率达95.51%和91.72%。单因素和多因素分析表明,高龄、DGF、糖尿病、感染、急性排斥和多次移植是影响移植肾存活率的独立危险因素,而前4者是影响患者存活率的独立危险因素。吗替麦考酚酯(骁悉)可显著提高移植肾存活率。结论骁悉等新型免疫抑制剂的应用显著提高了移植肾存活率,积极防治感染、心脑血管疾病等术后并发症是进一步提高人/肾存活率的关键。     

血液透析、腹膜透析：何种方式更适合作为肾移植手术前的替代疗法

血液透析（HD）、腹膜透析（PD）和肾移植是目前世界上公认的治疗慢性肾功能衰竭（CRF）的三大支柱手段。由于肾移植治疗方式较之前两种治疗手段在治疗效果、提高患者生活质量等方面更具优势，因此，肾移植在治疗尿毒症方面有广阔的应用前景。然而作为肾移植术前的替代疗法，HD和PD各有其利弊，那第，在接受肾移植术前，选择何种替代疗法，才能获得更好的移植效果呢？本文就免疫功能、移植术后并发症、移植术后肾存活率等方面对PD、HD两种透析方式进行比较、讨论。     

肾移植301例次报告

目的　总结肾移植的临床经验。方法　回顾性分析301例次肾移植患者的临床资料,从人和(或)肾存活率,肾移植术前准备、供肾及移植情况、术后并发症及处理、免疫抑制剂的应用、HLA配型及群体反应性抗体(PRA)检测等方面对移植肾效果影响进行分析总结。结果　1、3、5 年人/肾存活率分别为 96%/91% (243/254)/(230/254), 81%/76% (114/143)/(107/143)和68%/56%(38/57)/(32/57)。67例发生1~2次急性排斥反应,其中PRA致敏受者急性排斥反应发生率高达 48.57%。术后并发移植肾功能延迟恢复(DGF)48例;各种感染40例;急性左心衰竭12例。结论　充分的术前准备是安全度过围手术期的关键;良好的供肾和组织配型、术后免疫抑制剂的合理应用、并发症的预防和及时治疗,是提高肾移植术后人、肾存活率的重要保证。     

多囊肾患者肾移植术后的临床效果

目的:探讨多囊肾患者肾移植的特点、并发症及其对移植效果的影响。方法:回顾性分析了42例多囊肾患者和80例非多囊肾患者肾移植的临床资料。对两组患者的术后并发症以及1年和5年的人、肾存活率进行比较。同时对多囊肾组术前切除原肾和不切除原肾的患者进行比较。结果:两组患者在术后移植肾功能延迟恢复,急性排斥反应,心脑血管并发症以及肺部感染的发生率上均无显著性差异。多囊肾组患者术后的泌尿系感染的发生率高于对照组(P<0.05)。多囊肾组和对照组患者,1年和5年人存活率分别为95.24%与97.50%和83.81%与88.92%;1年和5年肾存活率分别为90.48%与94.97%和69.55%与66.54%。多囊肾组术前切除原肾和不切除原肾的两组患者间,上述并发症以及人、肾存活率差异均无统计学意义。结论:多囊肾患者接受肾移植是可行的,术后的人肾存活率与对照组比较差异无统计学意义,不切除原病变肾脏能收到满意的移植效果。多囊肾患者肾移植术后易发生泌尿系感染,应积极采取有效的防治措施。     

免疫抑制方案对移植肾早期各种功能状态的治疗影响

目的：分析肾移植术后早期 不同的肾功能状态下，三种免疫抑制用药方案对移植效果的影响。方法：将1196例肾移植患者根据其初始的免疫抑制用药方案分为A、B、C三组。A组：环孢素A（CsA) 硫唑嘌呤(Aza) 泥尼松（Pred);B组：CsA 霉酚酸酯（MMF）＋Pred;C组：他克莫司（FK506）＋MMF（或Aza) Pred。根据移植后早期肾功能状态，将患者分成肾功能即刻恢复正常（IGF）、缓慢恢复正常（SGF）、未恢复正常（AGF）和延迟恢复正常（DGF）四种情况。统计四种肾功能状态下，A、B、C三组患者的1年移植肾存活率、急性排斥发生率及治疗逆转率、药物副作用和相关并发症。结果：在四种不同肾功能状态下，B组或C组患者的移植肾1年存活率高于A组；B组和C组的急性排斥发生率均低于A组，急性排斥反应逆转率高于A组，但差异无显著性；B组或C组的肝功能损害、肾毒性、高血压的发生率明显低于A组。结论：在肾移植后各种肾功能状态下，B组和C组的免疫抑制方案，都可减少急性排斥反应、药物毒副作用及相关并发症的发生率，提高移植肾的存活率。     

多囊肾尿毒症患者肾移植时同期切除多囊肾的临床分析

目的 探讨多囊肾尿毒症患者在接受肾移植时是否同期切除多囊肾以及切肾对肾移植手术、术后并发症及患者预后的影响.方法 对63例接受肾移植治疗的多囊肾患者的临床资料进行回顾性分析.63例中,合并多囊肝者43例,胰腺囊肿者2例.对多囊肾体积较大影响手术操作、术前曾有血尿或泌尿系感染的31例患者,在肾移植的同时切除患者的多囊肾(切肾组),另32例保留多囊肾,仅行肾移植(保留组).术后采用环孢素A(或他克莫司)、霉酚酸酯和泼尼松预防排斥反应,观察比较两组患者的一般情况、移植肾功能恢复延迟(DGF)发生率、急性排斥反应发生率、手术并发症发生率、术后感染情况、患者和移植肾存活率等指标.结果 切肾组的手术耗时为(300±31)min,肾周引流管持续时间为(4.6±1.4)d,明显长于保留组(P＜0.01,P＜0.01),红细胞输注量为(4.31±1.05)U,明显多于保留组(P＜0.01).切肾组手术并发症发生率为29.0%(9/31),明显高于保留组的6.2%(2/32),差异有统计学意义(P＜0.05).保留组泌尿系感染发生率为31.2%(10/32),而切肾组只有6.5%(2/31),二者间比较,差异有统计学意义(P＜0.05),保留组因术后多囊肾感染而须再次手术切除多囊肾者占12.5%(4/32).切肾组和保留组术前各有24例血压偏高,切肾组术后8例(33.3%)血压恢复正常,而保留组只有2例(8.3%)血压恢复正常,两组间的差异有统计学意义(P＜0.05).两组在DGF发生率和急性排斥反应发生率、人/肾1年和5年存活率等方面的差异均无统计学意义.结论 只要操作细致,多囊肾患者接受肾移植时同期切除多囊肾是安全的,但切肾与否与人/肾存活率无关.     

亲属活体供肾动脉轻度狭窄对肾移植受者术后早期肾功能和并发症的影响

目的探讨亲属活体供肾动脉轻度狭窄对肾移植受者术后早期肾功能和并发症的影响。方法回顾性分析14例供肾动脉轻度狭窄的亲属活体肾移植与50例标准亲属活体肾移植供、受者的临床资料。比较两组供者术后血清肌酐(Scr)水平。比较两组受者术后1、3、6个月的Scr水平;比较两组受者移植肾存活率及移植物功能延迟恢复(DGF)、急性排斥反应、肺部感染的发生率。结果两组供者术后Scr水平比较,差异均无统计学意义(均为P0.05)。两组术后1、3、6个月Scr水平比较,差异均无统计学意义(均为P0.05)。两组受者移植肾存活率,DGF、急性排斥反应、肺部感染的发生率比较,差异亦均无统计学意义(均为P0.05)。结论亲属活体供肾动脉轻度狭窄对肾移植受者术后肾功能和并发症的影响不大,可纳入标准供体供肾范围。     

影响再次肾移植临床效果的主要因素

目的:探讨影响再次肾移植临床效果的主要因素.方法:报告我院115例再次肾移植患者的临床资料,并与同期首次移植患者的人/肾存活率对比观察.结果:两组间1、3、5年受者存活率的差异无统计学意义;而移植肾的存活率再次移植组明显低于对照组(P<0.05).再次肾移植受者淋巴毒试验<59例,5%～10(例,>10%9例,其移植肾存活率分别为72%、31%、0%.再次肾移植受者PRA<10C例,>10例,其术后急性排斥反应发生率分别为30.2%、75.0%.术后排斥反应、感染、肝功能损伤的发生率,再次移植组高于首次移植组(P<0.05);高血压、高血脂、糖尿病的发生率两组未见显著性差异.结论:再次移植肾存活率低于首次移植;术前PRA、淋巴毒水平是影响再次肾移植效果的主要因素;术后排斥反应、感染及肝功能损伤的发生率高于首次肾移植.     

Influence of dialysis on post-transplant events

INTRODUCTION: We examined the effect of haemodialysis (HD) or peritoneal dialysis (PD) on acute rejection, delayed graft function (DGF), graft and patient survival after cadaveric renal transplantation. MATERIALS AND METHODS: We carried out a retrospective analysis of 325 patients (cyclosporin [CyA]-based therapy) who had their first cadaver renal transplant between January 1991 and December 1996 and followed up for a mean of 61 +/- 26 months. They were divided into three groups: HD, PD and CD (where both PD and HD was used for at least 3 months). Delayed graft function was diagnosed if the patient needed dialysis in the first week post-transplant while primary non-function (PNF) was diagnosed if the kidney never achieved function. Graft rejection was confirmed by biopsy; early acute rejection (EAR) was defined as acute rejection occurring before 90 days and late acute rejection (LAR) as one after 90 d. RESULTS: A total of 183 patients had PD, 117 HD and 25 CD. The mean time period in which the patients were on dialysis for PD was 24 months, HD 34.5 months and CD 50.6 months (p < 0.01). The recipients were matched for age and gender. The donor variables (age, gender and cold ischaemia time) did not differ between the groups. The mean time for the development of first acute rejection following renal transplant in each group was as follows: PD group: 68.8 d, HD group: 81.3 d and CD group: 105 d (p = 0.08). The number of patients who developed EAR was 90 (49.2%) in PD group, 51 (43.6%) in HD group and 11 (56%) in CD group (p = 0.6); the number who developed LAR was nine in PD group (4.9%), six in HD group (5.1%) and one in CD group (4%) (p = 0.9). Fifty-six patients with PD had DGF compared with 58 with HD (p = 0.01). There was no difference in the number and severity of rejection episodes or DGF based on the duration of dialysis. The 5-yr survival of patients was 79% for PD, 81% HD and 78% CD groups (p = n.s), while the graft survival for PD group was 61%, HD group 63% and CD group 74% (p = n.s). SUMMARY: We could find no difference in the patient or graft survival between patients who had pre-transplant HD, PD or CD. There was no difference in the incidence of acute rejection episodes between the three groups of patients as well. However, we found a significantly higher rate of DGF in the HD versus PD patients.     

Pretransplant dialysis status and outcome of renal transplantation in North American children: a NAPRTCS Study. North American Pediatric Renal Transplant Cooperative Study

BACKGROUND: There are no large studies of the effect of pretransplant dialysis status on the outcome of renal transplantation (Tx) in children. This study evaluated the North American Pediatric Renal Transplant Cooperative Study (NAPRTCS) registry data for the outcome of Tx in pediatric patients who either (1) received their transplants preemptively or (2) were maintained on dialysis before receiving their transplants. METHODS: We compared graft survival and patient survival rates, incidence of acute tubular necrosis (ATN), acute rejection episodes, and causes of graft failure in peritoneal dialysis (PD) patients with those maintained on hemodialysis (HD) and those undergoing preemptive Tx (PTx). RESULTS: Primary Tx was performed in 2495 children (59% male; 61% Caucasian; 1090 PD, 780 HD, 625 PTx) between 1/1/1992 and 12/31/1996. The overall graft survival rates of the PD and HD groups were similar, but were less than that of the PTx group (3-year: 82% PD and HD, 89% PTx, overall P = 0.0003). Improved graft survival in the PTx group was present only in recipients of grafts from living donors. There was no difference in the overall patient survival rate at 3 years, or in time to first acute-rejection episodes in the three groups. The incidence of ATN in the first 7 days post-Tx was higher in PD and HD patients than in PTx patients (11% PD and 12% HD vs. 2% PTx, P<0.001; HD vs. PD, P = NS). The major single cause of graft failure in each group was: PD, vascular thrombosis (200%); HD, chronic rejection (27%); PTx, acute and chronic rejection (21% each). CONCLUSION: NAPRTCS data show that graft survival is improved in patients receiving PTx, compared with those receiving PD and HD. Graft loss resulting from vascular thrombosis is more common in children who receive PD than in those receiving HD.     

Immediate graft function positively affects long-term outcome of renal allografts from older but not from younger donors

There is disagreement about the impact of delayed graft function (DGF) on renal allograft outcome. This may depend on several variables including the age of the donor. We evaluated whether DGF could have different effects in recipients of kidneys from donors aged more than 60 years versus well-matched recipients of younger kidney donors. Patients were retrospectively subdivided into 3 groups. Immediate graft function (IGF), DGF without dialysis (DGF-ND), DGF requiring dialysis (DGF-D). DGF-ND and DGF-D occurred more frequently among 198 older than 198 younger donors (P = .016 and P = .044, respectively). The 5-year patient (96% vs 93%) and pure graft (96% vs 89%) survivals were significantly better in younger recipients, while the incidence of acute rejection was similar. After a mean follow-up of 66 +/- 44 months in older donor recipients, the graft survival was significantly better among IGF than patients in the DGF-ND (P = .046) or DGF-D (P = .003) groups. Instead, in younger recipients there was no difference in graft survival between IGD and DGF-ND. Only patients with DGF-D showed a significantly worse outcome. Upon multivariate analysis of older donors, their recipients, showed the pattern of graft function recovery to be the only variable associated with allograft outcome. Instead in younger donor recipients, acute rejection and time on dialysis were the main variables associated with a poor outcome. In older donor recipients, DGF was an independent variable associated with a poor graft outcome. In younger donor recipients, duration of dialysis and rejection were the most important predictors of poor graft outcomes.     

Similar impact of slow and delayed graft function on renal allograft outcome and function

Kidney transplant patients can be divided into three groups, according to the initial graft function. First-week dialyzed patients form the delayed graft function (DGF) group. Nondialyzed patients are divided into slow graft function (SGF) or immediate graft function (IGF) according to whether the day 5 serum creatinine was higher versus lower than 3 mg/dL, respectively. SGF patients showed worse graft survival, above higher incidence of acute rejection and lower renal function than IGF patients, although few reports have analyzed outcomes in these groups. We analyzed the impact of SGF on graft survival, first-year renal function, and incidence of acute rejection in 291 renal transplant patients. Creatinine was significantly worse at 12 months for SGF and DGF than for IGF patients (1.9 +/- 0.8 mg/dL, 1.8 +/- 0.7 mg/dL, 1.5 +/- 0.5 mg/dL, respectively; P < .05). There was no difference in first-year renal function between SGF and DGF. The acute rejection rate was higher among the SGF than the IGF group (45% vs 21%, P < .05), but not different from DGF patients (42%, P < .05). Graft survival was better among IGF than SGF or DGF patients, with no significant difference between the last two groups (3-year graft survival, 82%, 71%, 70%, respectively; log-rank test, P < .05). Kidney transplant recipients who develop SGF have a worse outcome than patients with IGF, similar to DGF patients. SGF patients show worse graft survival, worse renal function, and higher acute rejection rates than IGF patients, despite not needing dialysis.     

Dialysis as bridge therapy for renal transplantation: single center experience, a comparison of hemodialysis and continuous ambulatory peritoneal dialysis

BACKGROUND: Kidney transplantation is the most ideal treatment in renal replacement therapy for patients with end-stage renal disease. However, the prevalence of transplantation is extremely low and most patients with ESRD should continue dialysis for their whole life. Recently, high transposition rate of renal transplantation from peritoneal dialysis (PD) was reported, however, it was unclear whether a difference in dialytic modality can influence the outcome. Therefore, we evaluated the influence of dialytic modality on the rate of kidney transplantation and outcome in our single center. METHODS: Forty-two kidney transplants were carried among 1,573 dialysis patients from the years 1986 to 2004 in our center. Transposition rates from two modalities (HD and PD) and graft survival were compared. The incidence of acute rejection episode, complications after receiving transplantations, and coexisting diseases were also evaluated between the two modalities prior to transplantation. RESULT: The number of patients who received HD was larger than PD (HD 77.1%, PD 22.9%, respectively). Forty-two patients undergoing dialytic therapy received a living-donor kidney transplantation. Overall graft survival was 92% at 5 years and 75% at 10 years. Among these cases, dialytic modality prior to transplantation was 57.1% in HD, and 42.9% in PD. The transfer rate from PD to transplantation was significantly (p = 0.0036) higher (4.7%) than that of HD (1.9%). The reason for the high transfer rate of PD patients might be cooperation with their family and the provision of relevant information by nephrologists during PD. There were no differences between the two modalities prior to transplantation in the graft survival rate, incidence of acute rejection, and complications before and after transplantation. CONCLUSION: Difference in pretransplant dialysis modality did not affect the outcomes, however, the transfer rate from PD was significantly higher than from HD. Accordingly, PD is useful compared to HD as bridge therapy for kidney transplantation from the high feasibility of living-donor kidney transplantation.     

再次肾移植受者和移植肾长期预后影响因素分析

目的探究再次肾移植受者和移植肾存活情况及长期预后影响因素。 方法回顾性分析1991年1月1日至2017年12月31日于浙江大学医学院附属第一医院肾脏病中心接受肾移植受者临床资料。共纳入再次肾移植受者37例,首次肾移植受者5 374例。根据再次肾移植受者移植肾存活时间长短,将其分为长期存活组(19例,>5年)和短期存活组(18例,≤5年)。采用成组t检验比较长期和短期存活组供受者年龄、首次与再次肾移植间隔时间、HLA错配数和再次移植供肾冷/热缺血时间。采用卡方检验比较长期和短期存活组受者性别、再次移植供肾类型、再次移植前后群体反应性抗体阳性比例、首次移植失功移植肾切除比例、再次移植前免疫诱导比例及再次移植后移植肾功能延迟恢复(DGF)和急性排斥反应发生比例。采用Kaplan-Meier法分析再次和首次肾移植受者/移植肾1、5和10年存活率。采用Cox比例风险模型分析影响再次肾移植术后移植肾长期存活影响因素。P<0.05为差异有统计学意义。 结果截至2018年3月1日,37例再次肾移植受者中位随访时间为152个月(11～323个月),2例死亡,18例发生移植肾失功,17例移植肾功能稳定。5 374例首次肾移植受者中位随访时间为108.9个月(0.1～350.0个月),459例死亡,1 343例发生移植肾失功。再次移植组受者/移植肾1、5和10年存活率分别为86%/81%、86%/62%和82%/36%,首次移植组受者/移植肾1、5和10年存活率分别为99%/98%、93%/89%和88%/80%。再次移植组移植肾1、5和10年存活率均低于首次移植组(χ²＝60.816、25.110和43.900,P均<0.05);再次移植组受者1年存活率低于首次移植组,差异有统计学意义(χ²＝40.409,P<0.05)。长期和短期存活组受者再次移植后移植肾DGF和急性排斥反应发生比例差异均有统计学意义(χ²＝4.039和4.748,P均<0.05)。Cox回归分析结果示DGF和急性排斥反应是影响再次肾移植受者移植肾长期存活的独立危险因素,差异有统计学意义(RR＝4.317和4.571,P均<0.05)。 结论再次肾移植受者移植肾存活率低于首次肾移植受者,DGF和急性排斥反应是影响再次移植受者移植肾存活的独立危险因素。     

Daclizumab (humanized anti-IL2Ralpha mAb) prophylaxis for prevention of acute rejection in renal transplant recipients with delayed graft function.

BACKGROUND: The purpose of this retrospective study was to determine the benefits of daclizumab, (Zenapax, Roche Pharmaceuticals) a humanized anti-interleukin-2Ralpha (IL-2Ralpha) monoclonal antibody, for prevention of acute rejection in renal transplant recipients with delayed graft function (DGF). METHODS: Data from two multicenter randomized placebo-controlled trials were pooled. DGF was defined by urine output <30 cc/hour, decline in serum creatinine of <0.5 mg/dl, or the need for dialysis within the first 24 hours after transplantation. RESULTS: At one year posttransplantation, the incidence of biopsy-proven acute rejection in patients with DGF was reduced from 44% in the placebo group to 28% in the daclizumab group. (P=0.03) Prophylaxis with daclizumab also delayed the onset of the first biopsy-proven acute rejection episode in patients with DGF from 29+/-43 days in the placebo group to 73+/-70 days in the daclizumab group. (P=0.004) The graft survival rates in patients with DGF at 1 year posttransplantation were 78% in the placebo group and 82% in the daclizumab treated group. (P=ns) Three patients in the placebo-treated group with DGF experienced graft loss due to acute rejection, whereas no patients in the daclizumab-treated group with DGF had graft loss due to acute rejection. The 1-year patient survival rate in those with DGF in the placebo and daclizumab groups were 93% and 98%, respectively. (P=ns) CONCLUSIONS: Daclizumab effectively reduced the incidence and delayed the onset of biopsy-proven acute rejection in this high-risk subgroup of patients with DGF after renal transplantation. Graft and patient survival rates were similar between placebo- and daclizumab-treated patients with DGF.     

Preemptive Living-Donor Renal Transplantation: Outcome and Clinical Advantages

Introduction

Kidney transplant recipients have a higher quality of life and consume fewer health care resources compared with patients on dialysis. However, optimal timing of transplantation has been controversial. Recent studies have clearly demonstrated that preemptive renal transplantation is associated with better graft survival, lower complications, and better cost-effective outcomes. We evaluated differential effects on long-term outcomes according to dialysis type/duration versus no dialysis.

Materials and Methods

We retrospectively analyzed 499 cases of first living-donor kidney transplantations performed in our center from January 1990 to January 2007. We compared 3 groups according to graft survival, acute and chronic rejection, postoperative complication, and delayed graft function rates. The mean duration of follow-up was 119.1 ± 47.2 months.

Results

Among 499 cases, 81 cases were preemptive renal transplantations with 418 cases hemodialysis [HD], 343 cases, peritoneal dialysis [PD] 75 cases) performed after dialysis. The 1-, 5-, and 10-year graft survival rates were 98.8%, 89.5%, 79.4% among the preemptive renal transplantation group and 92.4%, 78.2%, and 69.2% and 85.3%, 74.5%, and 68.2% (P = .03) in the dialysis groups (HD, PD), respectively. The differential effect of pretransplantation HD or PD was not significant. However, the graft survival rates in the HD group were not significantly higher than the PD group (P = .61). The duration of dialysis was not associated with graft survival.

Conclusion

We suggest that preemptive renal transplantation should be the first choice of treatment for patients with end-stage renal disease.     

Pretransplant dialysis modality and long-term patient and kidney allograft outcome: a 15-year retrospective single-centre cohort study

Among factors determining long-term kidney allograft outcome, pretransplant renal replacement therapy (RRT) is the most easily modifiable. Previous studies analysing RRT modality impact on patient and graft survival are conflicting. Studies on allograft function are scarce, lack sufficient size and follow-up. We retrospectively studied patient and allograft survival together with allograft function and its decline in 2277 allograft recipients during 2000–2014. Pretransplant RRT modality ≥60 days as grouped into “no RRT” (n = 136), “haemodialysis (HD)” (n = 1847), “peritoneal dialysis (PD)” (n = 159), and “HD + PD” (n = 135) was evaluated. Kaplan–Meier analysis demonstrated superior 5-/10-/15-year patient (93.0/81.8/73.1% vs. 86.2/71.6/49.8%), death-censored graft (90.8/85.4/71.5% vs. 84.4/75.2/63.2%), and 1-year rejection-free graft survival (73.8% vs. 63.8%) in PD versus HD patients. Adjusted Cox regression revealed 34.5% [1.5–56.5%] lower hazards of death, whereas death-censored graft loss was similar [HR = 0.707 (0.469–1.064)], and rejection was less frequent [HR = 0.700 (0.508–0.965)]. Allografts showed higher 1-/3-/5-year estimated glomerular filtration rate (eGFR) in “PD” versus “HD” groups. Living donation benefit for allograft function was most pronounced in groups “no RRT” and “PD”. Functional allograft decline (eGFR slope) was lowest for “PD”. Allograft recipients on pretransplant PD versus HD demonstrated superior all-cause patient and rejection-free graft survival along with better allograft function (eGFR).