ABSTRACT
BACKGROUND: Urologic complications (UC) have gradually decreased in recent years after advanced surgical experience. The incidence of urologic complications varies between 0.22% and 30% in different medical studies. There is no routine usage of double-J stenting (DJS) during renal transplantation (RT) in the literature. It is a necessity, and optimal timing for stent removal is an important question for many transplantation centers. METHODS: This study includes 818 renal transplant patients whose ureteroneocystostomy anastomoses were completed by use of the Lich-Gregorie procedure during a 2-year period at a transplantation center. We performed 926 renal transplantations at Antalya Medical Park Hospital Renal Transplantation Center between January 2014 and January 2016. The patients were divided into four groups according to the timing of DJS removal. RESULTS: For group 1, removal time for DJS was between 5 and 7 days; group 2, Removal time for DJS was between 8 and 14 days; group 3, removal time for DJS was between 15 and 21 days; and group 4, removal time for DJS was later than 22 days. The patients were divided into two groups according to removal time of stent as 5 to 14 days and >15 days. DJS was performed again in the patients whose urine output was reduced during the first 5 days after removal of the DJS, whose creatine level increased, and whose graft ureter and collecting tubules were extended as an ultrasonographic finding. CONCLUSIONS: There is no declared optimal time for the removal of DJS. The removal time was reported between postoperative first week and 3 months in some of the reports of RT centers, according to their protocols. We emphasize that the optimal time for the removal of DJS is 14 to 21 days after RT, based on the findings of our large case report study.
Subject(s)
Device Removal , Kidney Transplantation/methods , Stents , Female , Humans , Incidence , Male , Middle Aged , Postoperative Complications/epidemiology , Postoperative Period , Ureter/surgeryABSTRACT
BACKGROUND: Depending on hyphothalamic, hyphophyseal, and gonadal axis dysfunction, anovulatory irregular cycles occur and the probability of pregnancy decreases in the patients with chronic kidney disease (CKD). Maternal mortality and morbidity rates are increased in CKD patients; the risk of premature delivery is 70% and the risk of preeclampsia is 40% more than normal among those with a creatine level of >2.5 mg/dL. METHODS: If a pregnancy is expected in the sequel of kidney transplantation (KT), a multidisciplinary team approach should be adopted and both the gynecologist and the nephrologist should follow the patient simultaneously. Among 3883 patients who underwent KT at Antalya Medical Park Hospital Transplantion Department between November 2009 and October 2016, the records of 550 female patients between the ages of 18 and 40 years were examined retrospectively; 31 patients who complied with these criteria were included in the study group. In 6 of these patients who had an unplanned pregnancy, medical abortion was performed after the families were informed about the possible fetal anomalies caused by the use of everolimus in the first trimester, and they were excluded from the study (pregnant group). The control group consisted of 43 patients who had a KT and became pregnant, and of those who had recently undergone KT and shared similarities regarding age, CKD etiology, duration of dialysis, and number of transplants. RESULTS: In both groups, the ages of the patients, their follow-up span and dialysis duration, tissue compatibility, age of the donor, and time elapsed until the pregnancy was analyzed, whereas in the control group, creatinine levels in the first, second, third, and fourth years after the KT were reviewed. Additionally, in the pregnant group, creatinine levels of the first, second, and third trimesters; delivery week; birth weight of the baby; APGAR scores of the first minute; postnatal creatinine levels of first, second, and third years; and prenatal, maternal, and postnatal acute rejections were reviewed. We measured the creatine clearance by use of the Cockcroft-Gault formula in the pregnancy group before pregnancy and during delivery [Cockcroft-Gault formula: (140 - age) × body weight (kg)/72 × plasma creatine level (mg/dL) × 0.85]. CONCLUSIONS: Pregnancy after KT is risky both for the mother and the baby; however, if planned and followed in coordination within an experienced center, both the pregnancy period and the birth process can occur without distress.
Subject(s)
Kidney Transplantation , Pregnancy Complications/therapy , Adolescent , Adult , Birth Weight , Case-Control Studies , Creatinine/metabolism , Delivery, Obstetric/statistics & numerical data , Female , Humans , Patient Care Team , Pregnancy , Pregnancy Outcome , Pregnancy Rate , Pregnancy, High-Risk , Premature Birth/etiology , Prenatal Care/methods , Renal Dialysis/statistics & numerical data , Renal Insufficiency, Chronic/complications , Renal Insufficiency, Chronic/surgery , Reoperation/statistics & numerical data , Retrospective Studies , Young AdultABSTRACT
More than 1 million patients are estimated to have undergone transplantation in the past years. In recent years, living-donor kidney transplantation accounted for more than 50% of all transplantations. Kidney transplantation from living donors is regarded as a contradictory case to the "do no harm" principle as a major surgical intervention is performed on a normal and healthy person at the expense of recovery of the organ recipient. The purpose of this study was to investigate positive psychological experiences, specifically post-traumatic growth (PTG), among living kidney donors. The sample consisted of a total of 184 kidney donors. The age of donors ranged between 21-76 (mean, 50.76; SD, 10.93). In this study 67.9% of donors were female. The recipients on dialysis group had higher scores than the recipients who did not have dialysis; the mean difference was significant on the subscales of change in life philosophy, change in relationships, change in self-perception, and in the PTGI score. The donors with higher education levels received higher scores on the subscale of change in relationships in comparison with donors with low education. The donors who were married and older than 51 years had higher scores than donors who were not married or younger on the subscale of change in self-perception. This is a single-center study; this center performs more than 500 kidney transplantations per year. There is a good system and experience at each step before and after transplantation for donor and recipient and relatives. It is a really big potential trauma to donate a kidney to your relative; you can change this negative effect to a positive effect with a good system. The present study also showed that when compared with the scale's absolute midpoint, kidney donors in the study sample experienced moderate-to-high levels of PTG.
Subject(s)
Interpersonal Relations , Kidney Transplantation/psychology , Living Donors/psychology , Self Concept , Adult , Aged , Female , Humans , Male , Middle Aged , Postoperative Period , Young AdultABSTRACT
OBJECTIVE: We estimated that many patients on the waiting list for kidney transplantation in Turkey have immunologicaly incompatible suitable living donors. Paired exchange kidney transplantation (PETx) is superior to desensitization for patients with incompatible donors. Recently we decided to begin an international PETx program. METHODS: We report three international living related paired kidney transplantations which occurred between May 14,2013, and March 7, 2014. The international donor and recipient operations were performed at Medical Park Hospital, Antalya, Turkey. All pairs were living related and written proofs were obtained according to Turkish laws. As with the donor procedures, the transplantation procedures were performed at the same time. RESULTS: The uniqueness of these transplantations was that they are the first international exchange kidney transplantations between Turkey and Kirghizia. Currently all recipients are alive with wel-functioning grafts. CONCLUSION: In our institute, a 5% increase was obtained in living-related kidney transplantations by the help of PETx on a national basis. We believe that international PETx may also have the potential to expand the donor pool.
Subject(s)
Donor Selection/methods , International Cooperation , Kidney Transplantation , Living Donors/supply & distribution , Adult , Blood Group Incompatibility , Female , Histocompatibility , Humans , Kyrgyzstan , Male , Middle Aged , Program Development , Time Factors , Turkey , Waiting ListsABSTRACT
AIM: In recent years, there has been an increase in usage of grafts from advanced-age donors because of the shortage of organ availability. Acceptance of elderly living-kidney donors remains controversial due to the higher incidence of comorbidity and greater risk of postoperative complications. The objective of this study was to evaluate the graft function and patient survival using kidneys from living-related and unrelated donors who were older than 65 years of age. MATERIALS AND METHODS: From December 2008 until December 2013 we compared the outcomes of 294 patients (mean age, 47.67 ± 12.4 years; range, 16 to 74 years old) who received grafts from donors ≥ 65 years old to 2339 patients who received grafts from donors who were younger than 65 years old. RESULTS: We observed no significant differences in sex, time on dialysis, or cold ischemia time between the groups. The recipient ages between two groups were similar. For survival analysis we used the Kaplan-Meier survival estimator. Patient survival at 1, 2, and 3 years was 91.1%, 89.1%, and 88.5%, respectively, for patients transplanted with kidneys from donors ≥ 65-years-old vs 96.7%, 95.9%, and 95.0%, respectively, in the <65-year-old donor group. Multivariate analysis showed the variables associated with patient survival to be donor age at time of transplantation in years (hazard ratio [HR], 1.65; 95% confidence interval [CI], 1.59-1.71; P < .05), time on dialysis in months (HR, 1.22; 95% CI, 1.21-1.23; P = .002). Graft survival rates at 1, 2, and 3 years censored for death with functional graft at was 97.6%, 96.4%, and 94.1%, respectively, for patients transplanted with kidneys from donors older than 65 years vs 97.5%, 96.8%, and 95.2%, respectively, in the <65-year-old donor group. Multivariate analysis, HLA-DR mismatches (HR, 1.23; 95% CI, 1.12-1.55; P = .050), delayed graft function (HR, 1.77; 95% CI, 1.53-2.07; P = .021), and perhaps acute rejection (HR 1.14; 95% CI, 0.82-1.95; P = .093) were the variables associated with graft survival. CONCLUSION: We concluded that the use of kidneys from donors older than 65 years of age allows us to increase the rate of renal transplantation to approximately 15 to 20 per million population, with good graft and patient survivals provided that the protocol for expanded criteria organs ensured proper macroscopic and microscopic evaluation of the organ for transplantation.
Subject(s)
Age Factors , Donor Selection/statistics & numerical data , Kidney Transplantation/mortality , Living Donors , Adult , Aged , Cold Ischemia , Delayed Graft Function , Female , Graft Survival , Humans , Male , Middle Aged , Survival AnalysisABSTRACT
OBJECTIVE: There is a still controversy among transplantation centers regarding acceptance of hepatitis B surface antigen (HBsAg)-positive donors for renal transplantation. However, some reports show that these donors can be used under a special protocol. In this study, we compared the clinical and biochemical parameters of patients who received kidneys from HBsAg-positive (group 1) versus other living-related kidney donors (group 2). MATERIALS AND METHODS: We retrospectively analyzed the outcomes of 2168 living-related renal transplantations performed between December 2008 and April 2014 at Medical Park Hospital Transplantation Center, Antalya, Turkey. One hundred eleven donors were HbsAg-positive (group 1), and 2057 donors were HbsAg-negative (group 2). Group 1 kidney transplantations were undertaken only if the recipient displayed a hepatitis B antibody titer >10 mIU/mL and donor hepatitis B virus DNA was negative. RESULTS: Demographic characteristics; 1-, 2- and 4-year serum creatinine levels; glomerular filtration rates; and liver function test results were similar between the two groups. There were no new hepatitis B virus infections throughout the study period. Acute rejection rates (26/111 in group 1 vs 375/2168 in group 2; P = .887), graft loss (4/111 in group 1 vs 123/2168 in group 2; P = .546), and patient loss (6/111 in group 1 vs 102/2168; P = .132) were similar between the two groups. CONCLUSION: Our study showed that hepatitis B surface antigen positivity was not a contraindication to living-kidney donation.
Subject(s)
Donor Selection/statistics & numerical data , Hepatitis B Surface Antigens/blood , Kidney Transplantation/adverse effects , Living Donors , Adult , Female , Glomerular Filtration Rate , Graft Survival , Hepatitis B Antibodies/blood , Humans , Male , Middle Aged , Retrospective Studies , Treatment Outcome , TurkeyABSTRACT
Patients with end-stage renal disease (ESRD) have a high prevalence of coronary artery disease and cardiovascular death. The mortality and the morbidity rates of cardiac surgery are particularly high in these patients with end-stage renal disease. Performing cardiac surgery and kidney transplantation in the same session can reduce these complications in the early postoperative period by normalizing renal function. We compared the mortality and morbidity rates between patients who had undergone cardiac surgery and kidney transplantation separately and patients who had combined surgeries. This retrospective study consisted of 75 patients. One group of 60 patients underwent cardiac surgery and kidney transplantation in separate sessions, and the other group of 15 patients had combined surgeries in the same session, between March 2008 and September 2012. Patients who had combined surgeries achieved fluid electrolytic balance more easily, had shorter extubation times, used less blood and blood products, and had fewer major complications. The patients recovered faster and thus had shorter stays in the intensive care unit and hospital. This combined surgical approach allows normalized kidney function in patients with end-stage renal disease, so mortality and morbidity in the early postoperative period could be significantly reduced.
Subject(s)
Cardiac Surgical Procedures , Coronary Artery Disease/surgery , Kidney Failure, Chronic/surgery , Kidney Transplantation , Adult , Aged , Coronary Artery Disease/complications , Coronary Artery Disease/mortality , Female , Humans , Kidney Failure, Chronic/complications , Kidney Failure, Chronic/mortality , Male , Middle Aged , Retrospective StudiesABSTRACT
BACKGROUND: We analyze the results of renal transplantation among recipients older than 65 years old over a 4-year period (2008-2012) from a single renal transplantation unit and compare results with younger recipients. METHODS: We retrospectively analyzed the outcomes of 2018 renal transplantations performed between November 2008 and December 2012. The χ(2) test was used for the comparison of categorical data, and the Student t test was used for the analysis of continuous variables. Patient and graft cumulative actuarial survivals were calculated using the Kaplan-Meier analysis and we tested for differences with the Mantel-Cox log-rank test. RESULTS: Seventy-five (3.7%) recipients were aged ≥ 65 years with a median age of 68 (range, 65 to 82) years. Actuarial graft survivals at 1, 2, and 3 years were 93.8%, 92.5%, and 90.3%, respectively, for the <65 group and 89.7%, 88.1%, and 83.1%, respectively, for the ≥ 65 group (P < .03). Actuarial patient survivals at 1, 2, and 3 years were 96.3%, 95.5%, and 94.7%, respectively, for the younger and 91.8%, 90.2%, and 88%, respectively, for the older samples (P < .03). When graft survival was censored for patient death with a functioning kidney at 1, 2, and 3 years, the results were similar between groups with 95.5%, 94%, and 92.8%, respectively, for recipients aged <65 years and 94.7%, 89.2%, and 89.2%, respectively, for recipients aged ≥ 65 years (P = .213). CONCLUSIONS: Our results showed that renal transplantation in selected patients older than 65 years was associated with good outcomes; this indicates that it seems safe and effective to treat end-stage renal disease in the elderly knowing there are acceptable rates of graft and patient survival.
Subject(s)
Kidney Failure, Chronic/surgery , Aged , Female , Graft Survival , Humans , Kaplan-Meier Estimate , Kidney Transplantation/adverse effects , Male , Patient Selection , Retrospective Studies , Treatment OutcomeABSTRACT
OBJECTIVE: Kidney transplantation is the best treatment option for end-stage renal disease patients. Increased incidence of post-transplantation malignancy can be caused by immunosuppressive drugs and some oncogenic infections. The aim of this study is to show the incidence of post-transplantation malignancy in patients who had surgery and were followed up in the Organ Transplant Center, Medical Park Antalya, Antalya, Turkey. METHOD: The study was based on 2100 kidney transplantation patients who had surgery between May 2008 and December 2012 and also on 1900 patients who had surgery by members of our team in other centers and who were followed up routinely. In all of our patients, the type of malignancy, the time that malignancy developed, immunosuppressive regimens, and viral status (Epstein-Barr virus and cytomegalovirus) were investigated. RESULTS: Malignancy was developed in 30 patients (60% of them were male, median age was 52.1 years). Post-transplantation malignancy development time was a median of 5.1 years. The types of malignancies were as follows: non-melanoma skin cancer in 12 patients (40%), urogenital cancer in 7 patients (24%), breast cancer in 4 patients (14%), lymphoproliferative disease in 3 patients (10%), thyroid cancer in 2 patients (6%), and lung cancer in 2 patients (6%). DISCUSSION: In this study, we did not find any increased post-transplantation malignancy risk in our patients. This finding could be due to the low-dosage immunosuppressive protocols that we used.
Subject(s)
Kidney Failure, Chronic/complications , Kidney Transplantation/adverse effects , Neoplasms/epidemiology , Adult , Aged , Breast Neoplasms/epidemiology , Breast Neoplasms/etiology , Cytomegalovirus , Female , Follow-Up Studies , Herpesvirus 4, Human , Humans , Immunosuppressive Agents/administration & dosage , Incidence , Kidney Failure, Chronic/blood , Kidney Failure, Chronic/surgery , Lung Neoplasms/epidemiology , Lung Neoplasms/etiology , Lymphoproliferative Disorders/epidemiology , Lymphoproliferative Disorders/etiology , Male , Middle Aged , Neoplasms/etiology , Risk , Skin Neoplasms/epidemiology , Skin Neoplasms/etiology , Thyroid Neoplasms/epidemiology , Thyroid Neoplasms/etiology , Turkey , Urogenital Neoplasms/epidemiology , Urogenital Neoplasms/etiology , Viral LoadABSTRACT
In adult living donor (right liver) lobe transplantations (LDLT), the removal of the middle hepatic vein (MHV) with the graft and reconstruction carried out in the donor are of great importance. Here a 44-year-old male patient with hepatitis B-related end-stage liver failure is reported of whom his 34-year-old brother was evaluated as a donor candidate. At routine preoperative screening tests, neither the patient nor the donor candidate was found to have any pathological findings that might interfere with the transplantation. The donor candidate was assessed using multislice computed tomography for a standard liver volume measurement and anatomical structure evaluation and extended right hepatectomy including MHV was planned. MHV of the donor removed together with the graft was reconstructed to the common orifice of MHV-left hepatic vein using a cryopreserved aortic graft. In conclusion, if the MHV is removed with the graft in adult LDLT, appropriate reconstruction in the donor is also an important issue. Reconstruction carried out without creating tension and folding in the right hepatic vein is crucial for avoiding congestion and of great importance for the prevention of graft dysfunction.
Subject(s)
End Stage Liver Disease/surgery , Hepatectomy/methods , Hepatic Veins/surgery , Liver Transplantation/methods , Adult , End Stage Liver Disease/virology , Hepatitis B/complications , Hepatitis B/surgery , Humans , Living Donors , Male , Middle AgedABSTRACT
OBJECTIVE: Paired-exchange kidney transplantation (PKD) has gained in importance because of the difficulty to obtain suitable organs. The aim of this study was to compare the biochemical and clinical parameters of PKT with those of living-related kidney transplantation (LD). METHOD: We compared 272 PKD performed in 3 transplant centers with 1885 LD. The 2 groups were compared for graft and patient survivals, rejection episodes, serum creatinine levels, and other biochemical parameters. RESULTS: The median human leukocyte antigen, mismatch was similar: PKD, 4 (95% confidence interval [CI], 3-4) and LD; 3 (95% CI, 3-4; P = .1292). The mean creatinine level among the PKT group of 1.07 ± .37 was lower then the LD group 1.17 ± .56 (P = .0043), but after the second year it was lower in the LD group (1.39 ± 0.61 and 1.16 ± 0.43; P < .0001). The rates of patient death (PKT, 3.31% vs LD 3.58; P = .9603), graft loss (2.74% vs 2.71%; P = .8647) and acute rejection episodes (19.48% vs 19.36%; P = 0.9719), were similar between the 2 groups. CONCLUSIONS: Paired donation expands the living donor pool and decreases the number of waiting list patients. It is cost effective according to ABO incompetible transplantation.
Subject(s)
Kidney Transplantation/methods , Adult , Female , Humans , Male , Middle Aged , TurkeyABSTRACT
BACKGROUND: Living donor (LD) transplantation has increased recently, but psychosocial aspects of living donation have not been well characterized, as risk factors for the donors. ELIPSY is a project confunded by EAHC, seeking to develop a common methodology for all EU countries for LD assessment/follow-up in the psychosocial sphere (www.eulivingdonor.eu). OBJECTIVE: To evaluate current psychosocial LD assessment/follow-up practices among European centers for key aspects and differences between kidney and liver programs. METHODS: Within a timeline of 30 months, this phase of the project sought to identify current LD psychosocial assessment/follow-up practices. The final survey concerned two versions focused on the kidney and on liver transplant program. The survey took place in ELIPSY partner centers under their own responsibility. Each of the centers sent the survey to other ones performing LD in their country. Partners in the EULID project includes ones in the United Kingdom, Poland, and Romania. The results were analyzed separately for each program seeking to compare and define differences among them. RESULTS: The survey took place in 10 European countries including 65 centers with LD programs. Positive answers regarding psychosocial assessment/follow-up practices were obtained for 26 (42%) kidney and nine (38%) liver centers. Some centers perform several psychosocial follow-ups but did not explain their tools, whereas the centers that did explain the tools used the same ones for both programs.
Subject(s)
Living Donors , Transplantation/psychology , Follow-Up Studies , HumansABSTRACT
OBJECTIVE: Paired-exchange kidney transplantation (PETx) gains an importance because it is difficult to find suitable organs. The aim of this study was to compare biochemical and clinical parameters of PETx with those of living-related kidney transplantation (LRTx). METHOD: The 57 PETx included 18 female and 39 male recipients among 1081 LRTx in 360 females and 721 males (N = 1138) whose operations were performed between November 21, 2008, and March 1, 2011. These two groups were compared for graft and patient survival, rejections, serum creatinine levels, glomerular filtration rates (GFRs), and other biochemical parameters. RESULTS: The PETx patients were older than the LRTx patients (45.4 ± 13.2 years versus 40.9 ± 13.5 years; P = .014). HLA mismatch was higher in the PETx group (4.7 ± 0.7 versus 3.56 ± 1.6; P = .000). First- and second-year serum creatinine and GFR values were similar between the two groups. Acute rejection episodes (PETx: 13/57; LRTx: 226/1081, P = .925), patient loss (0/57 versus 34/1081; P = .174) and graft loss (1/57 versus 55/1081; P = .257) were similar between the two groups. CONCLUSION: Our study showed similar biochemical and clinical findings of PETx versus LRTx over 2 years posttransplantation.
Subject(s)
Donor Selection , Family , Kidney Transplantation/methods , Living Donors/supply & distribution , Acute Disease , Adult , Biomarkers/blood , Chi-Square Distribution , Creatinine/blood , Female , Glomerular Filtration Rate , Graft Rejection/etiology , Graft Survival , Histocompatibility , Humans , Kidney Transplantation/adverse effects , Kidney Transplantation/mortality , Linear Models , Male , Middle Aged , Multivariate Analysis , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome , TurkeyABSTRACT
Because of the organ shortage, the number of patients awaiting kidney transplantation has increased rapidly requiring physicians to implement new methods to increase the number of grafts. In this study, we compared clinical and biochemical parameters of patients who received kidneys from hepatitis B surface antigen-positive (group 1) versus other living related kidney donors (group 2). The study included 414 female (15 group 1 and 399 group 2) and 816 male (20 group 1 and 796 group 2) donors for 1195 living related kidney transplantations performed between April 21, 2008 and March 1, 2011. Group 1 kidney transplantations were undertaken only if the recipient displayed a hepatitis B antibody titer >10 mIU/mL and donor hepatitis B virus (HBV) DNA was negative. Demographic characteristics, 1- and 2-year serum creatinine levels, glomerular filtration rates (GFR), and liver function test results were similar between the 2 groups. There were no new HBV infections throughout the study period. Acute rejection rates (7/35 in group 1 vs 232/1195 in group 2; P = .988), graft loss (1/35 in group 1 vs 55/1195 in group 2; P = .624), and patient loss (0/35 in group 1 vs 34/1195; P = .311) were similar between the 2 groups. Our study showed that hepatitis B surface antigen positivity was not a contraindication to living kidney donation.
Subject(s)
Donor Selection , Hepatitis B Surface Antigens/blood , Hepatitis B virus/immunology , Hepatitis B/diagnosis , Kidney Transplantation , Living Donors/supply & distribution , Nephrectomy , Adult , Biomarkers/blood , Chi-Square Distribution , Contraindications , Creatinine/blood , DNA, Viral/blood , Female , Glomerular Filtration Rate , Graft Rejection/etiology , Graft Survival , Hepatitis B/blood , Hepatitis B/complications , Hepatitis B Antibodies/blood , Hepatitis B virus/genetics , Humans , Male , Middle Aged , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome , Turkey , Waiting ListsABSTRACT
INTRODUCTION: ABO compatibility has been believed to be necessary in kidney transplantation (Ktx) to prevent acute antibody-mediated rejection. However, developments in immunosuppression and immunoadsorption techniques have overcome acute antibody-mediated rejection caused by ABO incompatibility. Herein, we have presented the first ABO-incompatible Ktx cases in Turkey. All recipients did not have an ABO-compatible donor but presented significant dialysis inadequacy due to vascular access problems. METHOD: Five dialysis patients with blood groups O or B underwent kidney transplantation from living related donors of blood group type A1 or AB between march 23, 2007 and August 16, 2007. All patients received Rituximab (375 mg/m(2)) at 3-4 weeks before the Ktx. Additionally, we started tacrolimus (0.15 mg/kg), mycophenolate mofetil (2 × 1 g), and simvastatin (1 × 20 mg) 1 week before the operation. Immunoadsorption therapy employing a specific filter (Glycosorbs) to remove anti-A or anti-B antibodies was continued until the titers were <1/4. After the Ktx, we again performed immunoadsorption if the anti-A or the anti-B antibody titer was >1/8 during the first postoperative week and >1/16 at the second postoperative week. We used 2 standard hemodialysis machines with a connection line to perform immunoabsorption and dialysis during the same session. RESULTS: Acute humoral and cellular rejection was not detected. During the follow-up 1 patient was lost due to a cardiovascular complication. Mean creatinine level was 1.1 ± 0.3 mg/dL. These first ABO-incompatible transplantation cases in Turkey suggest that this source may represent an effective approach to overcome the organ shortage.
Subject(s)
ABO Blood-Group System/immunology , Antibodies/blood , Blood Group Incompatibility/immunology , Histocompatibility , Immunosorbents/therapeutic use , Immunosuppressive Agents/therapeutic use , Kidney Transplantation/immunology , Adult , Female , Graft Rejection/immunology , Graft Rejection/prevention & control , Graft Survival , Histocompatibility Testing , Humans , Immunosorbent Techniques , Kidney Transplantation/adverse effects , Kidney Transplantation/mortality , Living Donors , Male , Middle Aged , Renal Dialysis , Time Factors , Treatment Outcome , Turkey , Young AdultABSTRACT
There is marked interindividual variability in trough blood levels of tacrolimus (TRL) following standard dosing. TRL is a substrate for P-glycoprotein (P-gp), the product of the multidrug resistance-1 (MDR1)(ABCB1) gene. P-gp acts as a membrane efflux pump, which affects TRL absorption from the gut. Some of the single nucleotide polymorphisms (SNP) of ABCB1 gene are associated with pharmacokinetic characteristics of TRL. The objective of this study was to determine the role of ABCB1 C3435T polymorphism on TRL dose requirements, trough values and dose-adjusted trough TRL concentrations among Turkish renal transplant recipients. Renal transplant recipients receiving TRL (n=92) were genotyped for ABCB1. TRL daily doses, trough concentrations, dose-adjusted trough concentrations, demographic features, and clinical data were obtained at 1, 6, and 12 months after renal transplantation. The frequency of the ABCB1 3435 CC genotype was 30.4%, whereas 47.8% of patients were 3435 CT and 21.7% of patients were 3435 TT. TRL daily doses were significantly lower among patients with the 3435 TT genotype at months 1 and 6. At 6 and 12 months after transplantation patients who were homozygous for the ABCB1 3435 CC showed significantly lower dose-adjusted trough TRL concentrations compared with subjects of 3435 TT and CT genotypes. Knowledge of ABCB1 genotype may be useful to adjust the optimal dose of TRL in transplant patients, thereby rapidly achieving target concentrations.
Subject(s)
Genes, MDR , Kidney Transplantation/physiology , Polymorphism, Genetic , Tacrolimus/pharmacokinetics , ATP Binding Cassette Transporter, Subfamily B, Member 1/genetics , Creatinine/blood , Humans , Immunosuppressive Agents/pharmacokinetics , Immunosuppressive Agents/therapeutic use , Kidney Transplantation/immunology , Metabolic Clearance Rate , Tacrolimus/therapeutic use , TurkeyABSTRACT
Dialysis and kidney transplant patients display endothelial dysfunction. Previous studies concerning comparisons of endothelial function in dialysis and kidney transplant patients included subjects with cardiovascular risk factor(s) that alone may lead to endothelial dysfunction. In this study, we compared endothelial function between dialysis and transplant patients who did not show known cardiovascular risk factors that lead to endothelial dysfunction. We studied age- and gender-matched cohorts: 30 hemodialysis (HD), 30 peritoneal dialysis (PD), and 30 kidney transplant patients. We also included 20 age- and gender-matched healthy controls. We assessed the endothelial function of patients and controls by a noninvasive technique. Serum biochemistry profiles of patients were also similar to controls in terms of lipid profile and fasting blood glucose level. Although mean FMD% levels of HD and PD patients were similar (6.6% +/- 3.1% vs 6.8% +/- 3.0%, P > .05), the mean percent of flow-mediated endothelium-dependent dilatation (FMD%) level in transplant patients was higher than those in HD or PD patients (10.50% +/- 3.0% vs 6.6% +/- 3.1% and 6.8% +/- 3.0%, respectively; P < .01). In addition, the mean FMD% level in healthy controls was higher than those in HD, PD, and transplant patients (14.0% +/- 2.3% vs 6.6% +/- 3.1%, 6.8% +/- 3.0% and 10.50% +/- 3.0%; P < .01, respectively). In conclusion, endothelial functions in transplant patients were better than those in dialysis patients.
Subject(s)
Endothelium, Vascular/physiopathology , Kidney Failure, Chronic/therapy , Kidney Transplantation/physiology , Peritoneal Dialysis, Continuous Ambulatory , Renal Dialysis , Adult , Blood Chemical Analysis , Blood Pressure , Cardiovascular Diseases/epidemiology , Female , Humans , Kidney Failure, Chronic/surgery , Male , Reference Values , Risk FactorsABSTRACT
To investigate disease-specific quality of life (QOL) in Turkish patients after successful kidney transplantation, the End-Stage Renal Disease Symptom Checklist Transplantation Module (ESRD-SCL-TM), a multidimensional questionnaire measuring disease-specific QOL, was translated and administered to a sample of successfully transplanted patients. Intercultural differences between Turkish and German patients as well as the influence of demographic (age, gender) and clinical (duration of graft function, living versus cadaver transplantation) data in the Turkish patients were evaluated by multivariate analyses of variance, and correlative techniques. The 152 investigated Turkish patients, including 106 (69.7%) men and 46 (30.3%) women, had a mean age of 34.8 years (SD = 10.8, range, 14 to 67 years). Time since successful kidney transplantation varied between 1 and 297 months (mean = 19.2 months; SD = 36.9). One hundred twelve patients (73.7%) received a kidney from a living donor, and 40 (26.3%) from a cadaver. The Turkish patients suffered statistically significantly more from disease-specific distress than the German patients (19% explanation of variance). They reported higher distress regarding four of six subscales. Turkish women suffered statistically significantly more from "Limited Physical Capacity," and "Side-effects of Corticosteroids" (10% explanation of variance) than men. The demonstrated higher disease-specific distress in successfully transplanted Turkish patients compared to the German samples may be the result of intercultural differences in reporting psychological and disease-specific distress. On the other hand, the higher distress of women compared to men is well known. Both results pointed out the necessity of psychological support.
Subject(s)
Kidney Transplantation/physiology , Kidney Transplantation/psychology , Quality of Life , Cognition , Germany , Health Status , Humans , Kidney Failure, Chronic/surgery , Stress, Psychological/epidemiology , Surveys and Questionnaires , TurkeyABSTRACT
C-2 monitoring has been proposed as a more effective strategy than C-0 to predict the risk of acute rejection in the early stages posttransplantation. However, cyclosporine (CsA) is associated with posttransplant dyslipidemia. The aim of this retrospective study was to evaluate the correlations of C-0 and C-2 levels with atherogenic risk factors in the first 6 months versus after 6 months posttransplantation. We evaluated the data from 127 stable renal transplant recipients (89 males, 38 females) of mean age 38.10 +/- 12.79 years who received Neoral-based immunosuppression to investigate the relation of C-2 levels to serum lipid profile compared with C-0 values in the early and late posttransplantation periods. Receiver operating characteristic (ROC) analyses were performed to define a C-2 cutoff level that identified subjects with hypercholesterolemia, defined as a total cholesterol (TC) >200 mg/dL. There were significant positive correlations between both C-0 and C-2 levels and TC as well as the ratio of total cholesterol/HDL cholesterol (TC/HDL) in the late period. When the C-2 levels in the late posttransplantation period were stratified, serum TC concentrations showed statistically significant differences between the groups. Whole blood C-2 levels above 850 ng/mL were associated with increased serum TC concentrations; the C-2 cutoff level leading to hypercholesterolemia was 888 ng/mL. Maintenance immunosuppressive therapy under the proposed whole blood C-2 level of 888 ng/mL seemed to preserve graft function while preventing atherogenic risks for cardiovascular diseases in the late posttransplantation period.
Subject(s)
Kidney Transplantation/physiology , Lipids/blood , Adult , Cyclosporine/pharmacology , Cyclosporine/therapeutic use , Drug Therapy, Combination , Environmental Monitoring/methods , Epidemiological Monitoring , Female , Humans , Hypercholesterolemia/epidemiology , Immunosuppressive Agents/pharmacology , Immunosuppressive Agents/therapeutic use , Kidney Transplantation/immunology , Kinetics , Male , Middle Aged , Mycophenolic Acid/analogs & derivatives , Mycophenolic Acid/therapeutic use , Prednisolone/therapeutic use , ROC Curve , Retrospective StudiesABSTRACT
Lack of expansion of the deceased donor supply has resulted in a severe shortage of organs worldwide. Spousal donors are one possible alternative organ source for patients on the kidney transplant waiting list. Despite human lymphocyte antigen (HLA) matching between recipients and unrelated donors being poor, the reported survival rates for these grafts, including spouses, are comparable to those for grafts from living related donors and higher than those for deceased donor kidneys. In 2000, our renal transplantation program began accepting living donor-recipient pairs with one or zero HLA matches. The purpose of this study was to assess this policy for accepting living unrelated donors. The 3-year graft survival rates for the transplants from living unrelated donors were similar to that for transplants from living related donors (log-rank = 0.078). The number of HLA mismatches did not significantly influence the survival rates for either of these groups of living donor transplants. Multivariate analysis revealed that dialysis duration (P = .057) and recipient age (P = .066) negatively influenced patient survival in living donor kidney transplantation. The graft and patient survival rates for the donor transplantations were higher than those for deceased donor transplantations. In light of these findings and considering the increasing problem of organ shortage, we conclude that living unrelated kidney transplantation should be performed, with strict guidelines. Spousal donation is the most favorable form of living unrelated renal transplantation.