Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 62
Filtrar
1.
Niger J Clin Pract ; 22(2): 265-269, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30729953

RESUMO

BACKGROUND: Patients with end-stage liver disease are prone to hemodynamic disturbances which may be aggravated with liver transplantation. Blood pooling in splanchnic area and portal hypertension cause reduction in central blood volume. Terlipressin reduces mesenteric and hepatic blood flow, causing vasoconstriction in the smooth muscles of the arteries in the splanchnic region. OBJECTIVE: We investigated the efficacy of perioperative terlipressin infusion in patients who received living donor liver transplantation (LDLT) on hepatic and renal functions. DESIGN: Retrospective. SETTING: University hospital. METHOD: The study included 86 adult patients who received LDLT, due to end-stage hepatic disease, between April 2014 and July 2016 in our institute. Data were collected by searching the medical archives of patients. A standard anesthesia protocol was administered to all patients. In a selected group of patients, terlipressin infusion was initiated at 3 µg/kg/h, immediately after anesthesia was induced. The dose was halved following arterial anastomosis and was continued at this dose for the subsequent 3 days. Patients who received terlipressin infusion were compared with patients who did not receive it. MAIN OUTCOME MEASURES: There is no evidence in this trial to show evidence of effectiveness as a result of terlipressin infusion. RESULTS: Patients in the terlipressin group were statistically significantly older. Central venous pressure, cardiac index, global end diastolic volume, and extravascular lung volume did not show significant differences between the groups. Urine output was similar in both groups; however, regarding the use of packed red blood cells and fresh frozen plasma, terlipressin group patients needed more packs. Perioperative liver function tests were similar between the groups except for aspartate aminotransferase and alanine aminotransferase values on the first and third postoperative days. CONCLUSION: Terlipressin infusion was not found to be significantly effective among the liver and kidney function tests. LIMITATIONS: This may be a result of randomization defect of our retrospective study design. Many prospective randomized studies should be planned to reach more accurate results.


Assuntos
Circulação Hepática/efeitos dos fármacos , Transplante de Fígado , Doadores Vivos , Lipressina/farmacologia , Circulação Renal/efeitos dos fármacos , Terlipressina/farmacologia , Vasoconstritores/farmacologia , Adulto , Feminino , Hemodinâmica/efeitos dos fármacos , Humanos , Testes de Função Renal , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Estudos Retrospectivos
2.
Georgian Med News ; (249): 42-51, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26719549

RESUMO

The aim of this study was to compare the mid and long term postoperative outcomes between the hemodialysis-dependent patients awaiting kidney transplantat who underwent open heart surgery in our department during the last five years, and those who did not receive a renal transplant, to determine the predictors of mortality, and assess the possible contribution of post heart surgery kidney transplantation to survival. The patients were separated into two groups: those who underwent a transplantation after open heart surgery were included in the Tp+ group, and those who did not in the Tp- group Between June 2008 and December 2012, 127 dialysis dependent patients awaiting kidney transplant and who underwent open heart surgery were separated into two groups. Those who underwent transplantation after open heart surgery were determined as Tp+ (n=33), and those who did not as Tp- (n=94). Both groups were compared with respect to preoperative paramaters including age, sex, diabetes mellitus (DM), hypertension (HT), hyperlipidemia (HL), obesity, smoking, chronic obstructive pulmonary disease (COPD), peripheral vascular disease (PVD), left ventricle ejection fraction (EF), Euroscore; operative parameters including cross clamp time, perfusion time, number of grafts, use of internal mammary artery (IMA); postoperative parameters including revision, blood transfusion, ventilation time, use of inotropic agents, length of stay in the intensive care unit and hospital, and follow up findings. Problems encountered during follow up were recorded. Predictors of mortality were determined and the survival was calculated. Among the preoperative parameters, when compared with the Tp- group, the Tp+ group had significantly lower values in mean age, presence of DM, obesity, PVD, and Euroscore levels, and higher EF values. Assessment of postoperative values showed that blood transfusion requirement and length of hospital stay were significantly lower in the Tp+ group compared to the Tp- group, whereas the length of follow up was significantly higher in the Tp+ group. The use of inotropic agents was significantly higher in the Tp- group. A logistic regression analysis was made to determine the factors affecting mortality. Revision (p=0.013), blood transfusion (p=0.017), ventilation time (p=0.019), and length of stay in the intensive care unit (p=0.009) were found as predictors of mortality. Survival rates at years 1, 2 and 3 were 86.1%, 81%, 77.5% in the Tp- group, and 96.0%, 96.3%, 90.4% in the Tp+ group. Median survival rate was 41.35±2.02 in the Tp- group, and 49.64±1.59 in the Tp+ group which was significantly higher compared to the Tp- group (p=0.048). Chronic renal failure is among the perioperative risk factors for patients undergoing open heart surgery. Transplantation is still an important health issue due to insufficiency of available transplant organs. Patients with chronic renal failure are well known to have higher risks for coronary artery disease. A radical solution of the cardiovascular system problems prior to kidney transplantation seems to have a significant contribution to the post transplant survival.


Assuntos
Procedimentos Cirúrgicos Cardíacos/métodos , Doença da Artéria Coronariana/cirurgia , Falência Renal Crônica/cirurgia , Transplante de Rim , Diálise Renal , Adulto , Idoso , Procedimentos Cirúrgicos Cardíacos/mortalidade , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/fisiopatologia , Diabetes Mellitus/fisiopatologia , Feminino , Seguimentos , Humanos , Falência Renal Crônica/mortalidade , Falência Renal Crônica/fisiopatologia , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Doenças Vasculares Periféricas/fisiopatologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Fatores de Risco , Análise de Sobrevida , Fatores de Tempo
3.
Eur Rev Med Pharmacol Sci ; 28(11): 3752-3760, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38884510

RESUMO

OBJECTIVE: End-stage liver disease is commonly associated with portal vein thrombosis (PVT). Lastly, PVT is no longer an absolute contraindication for liver transplantation, and many centers adopt portal vein thrombectomy. PVT imposes special technical difficulties during living donor liver transplantation (LDLT). In this research, the experience with PVT cases during LDLT in a high-volume center is introduced. PATIENTS AND METHODS: Between January 2018 and July 2023, 312 patients underwent LDLT. After 88 cases were excluded, 224 cases were included, and their incidence of pre-transplant PVT was 16.5% (37/224). Demographic and clinical features, perioperative variables, and post-transplant outcomes of patients with PVT (PVT group, n=37) were compared to patients who had no PVT (non-PVT group, n=187). RESULTS: According to Yerdel classification, 16, 16, 2, and 3 patients had PVT grade I, II, III, and IV, respectively. Complete venous thrombectomy was accomplished in 34 patients, while for three patients, thrombectomy was not feasible, and graft inflow was established by interposition vascular graft. For portal flow modulation, splenectomy and splenic artery ligation were performed in 7 and 4 patients, respectively, while two patients underwent post-transplant splenic artery embolization. The PVT group had longer operation time (p<0.001), longer warm ischemia time (p=0.031), longer anhepatic phase (p<0.001), and intraoperatively required more than 3 packed RBCs units (p=0.029) and ≥1 platelet unit transfusion (p=0.021) than the non-PVT group. No statistically significant difference was found between groups in terms of re-exploration (p=0.954), post-transplant PVT (p=0.375), biliary (p=0.253) and arterial complications (p=0.593), ICU stay (p=0.633), hospital stay (p=896), and 30-day mortality (p=1.000). Survival analysis showed no statistically significant difference regarding 1-year survival (p=0.176) between both groups. CONCLUSIONS: This study showed that patients with different stages of PVT can successfully undergo LDLT in experienced centers and that they do not differ from patients without PVT in terms of post-transplant complications.


Assuntos
Transplante de Fígado , Doadores Vivos , Veia Porta , Trombose Venosa , Humanos , Transplante de Fígado/efeitos adversos , Veia Porta/cirurgia , Feminino , Masculino , Trombose Venosa/cirurgia , Pessoa de Meia-Idade , Adulto , Trombectomia , Estudos Retrospectivos , Doença Hepática Terminal/cirurgia
4.
Eur J Vasc Endovasc Surg ; 35(2): 208-13, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17920305

RESUMO

PURPOSE: To evaluate the maturation and patency of transposed brachio-basilic fistulae that had been chosen based on the results of preoperative imaging techniques. METHODS: Among 215 patients admitted to our clinic requiring arteriovenous fistulae between May 2004 and September 2005, 59 were scheduled for a transposed brachio-basilic fistula procedure. The relationship between demographic data, laboratory values, invasive and noninvasive imaging studies with patency and maturation time of the fistulae were evaluated by univariate analyses. RESULTS: Primary and secondary patency rates were 82% and 97% at 6 months 72% and 92% at one year respectively. The only parameter found to affect maturation time was basilic vein diameter. The maturation time was 59.3+/-22.3 days (range 32-92 days) for veins less than 3mm in diameter and 24.7+/-4.4 days (range, 21 to 34 days) for those with larger diameters. The number of previously failed fistulae correlated with a decrease in primary patency time. The primary patency rate at 1 year was 58.9% for patients whose preoperative arterial flow rate was below 70cm/sec, while it was 93.3% when the flow was greater. CONCLUSION: We believe that this type of fistula should be the first option in patients in whom the cephalic vein is inappropriate for a vascular access. Preoperative evaluation of the arterial system as well as a history of previous access failure may be considered predictive parameters for the patency of the fistulae.


Assuntos
Braço/irrigação sanguínea , Derivação Arteriovenosa Cirúrgica , Artéria Braquial/cirurgia , Falência Renal Crônica/terapia , Seleção de Pacientes , Diálise Renal , Grau de Desobstrução Vascular , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia Digital , Derivação Arteriovenosa Cirúrgica/efeitos adversos , Velocidade do Fluxo Sanguíneo , Pressão Sanguínea , Artéria Braquial/patologia , Artéria Braquial/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Flebografia , Cuidados Pré-Operatórios , Estudos Prospectivos , Fluxo Sanguíneo Regional , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler , Veias/patologia , Veias/fisiopatologia , Veias/cirurgia
5.
Transplant Proc ; 40(1): 22-6, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261538

RESUMO

Hepatic artery stenosis or thrombosis following liver transplant is a potentially life-threatening complication. Successful liver transplant depends on uncompromised hepatic arterial inflow. Early diagnosis and treatment of complications prolong graft survival. Interventional radiologic techniques are frequently used to treat hepatic artery complications. Twenty patients with hepatic artery stenoses (n = 11) or thromboses (n = 9) were included in this study. Eighteen of the 20 patients were successfully treated by stent placement. In 9 patients, early endovascular interventions were performed 1 to 7 days after surgery. Two patients were operated owing to the effects of dissection and bleeding from the hepatic artery. Repeat endovascular interventions were performed 10 times in 6 patients. Follow-up ranged from 5 months to 4.5 years. Nine patients with patent hepatic arteries died during follow-up owing to reasons unrelated to the hepatic artery interventions. In 3 patients, the stents became occluded at 3, 5, and 9 months after surgery but no clinical symptoms were present.


Assuntos
Constrição Patológica/cirurgia , Artéria Hepática/cirurgia , Transplante de Fígado/efeitos adversos , Stents , Trombose/cirurgia , Adolescente , Adulto , Criança , Feminino , Artéria Hepática/diagnóstico por imagem , Humanos , Hepatopatias/cirurgia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Ultrassonografia
6.
Transplant Proc ; 40(1): 123-5, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261564

RESUMO

Antithymocyte globulin (ATG) is a polyclonal antibody used in renal transplantation for prevention and treatment of acute rejection. In this study we have presented the outcomes of 23 cases treated with ATG due to steroid-resistant acute rejection episodes in 17 male and 6 female recipients. Sixteen transplantations were performed from cadaver donors and the other 7 from living-related donors. The mean recipient age was 31.9 +/- 9 years and the mean donor age was 56.3 +/- 10.8 years. ATG treatment was administered in doses of 3-5 mg/kg/d for 10 or 14 days. All patients received the same premedication before the ATG treatment; we did not encounter any ATG-related side effects. ATG doses were adjusted according to the T-lymphocyte levels. All recipients were followed up for infectious complications, for graft function, and for immunologic parameters of CD3 levels, CD4 levels, CD3/CD4 ratios, lymphocyte, and polymorphonuclear leukocyte numbers. According to the Banff criteria introduced in 1997, 4 patients displayed humoral rejection: 3 had type 3; 5 had type 2; and 11 had type 1 acute rejection episodes. Nine patients developed infectious complication during the follow-up. Three had pulmonary aspergillosis; 2 had cytomegalovirus infection; and 4 had bacterial infections. One patient who experienced aspergillosis died with a functioning graft, and the remaining 8 patients were treated successfully. Graft function improved in 19 (83%) cases. The other 4 patients returned to hemodialysis. Mean creatinine levels decreased from 4 +/- 1.7 to 2.1 +/- 0.2 mg/dL. We did not observe any relationship between the immunologic parameters and infectious complications. In conclusion, although ATG is a powerful drug to treat steroid-resistant acute rejection episodes, there was no precise way to monitor the intensity of immunosuppression to prevent infectious complications.


Assuntos
Soro Antilinfocitário/uso terapêutico , Rejeição de Enxerto/tratamento farmacológico , Imunossupressores/uso terapêutico , Transplante de Rim/imunologia , Adulto , Idoso , Antígenos CD/sangue , Cadáver , Creatinina/sangue , Feminino , Humanos , Doadores Vivos/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Doadores de Tecidos/estatística & dados numéricos
7.
Transplant Proc ; 40(1): 224-7, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261592

RESUMO

The aim of this study was to evaluate the safety and effectiveness of a restrictive fluid management strategy and acute normovolemic intraoperative hemodilution (ANIH) to decrease transfusion requirements among living-donors for liver transplantation (LDLT). We retrospectively reviewed the data of 114 consecutive LDLT donors. The patients were divided into 2 groups based on whether (Group I; n = 73) or not (Group II; n = 41) a restrictive fluid management strategy with ANIH was used during the procedure. For each group we recorded demographic features, intraoperative and postoperative transfusions, amount of administered intraoperative crystalloid and colloids, intraoperative hemodynamics, preoperative and postoperative laboratory values (renal and liver functions), intraoperative and postoperative urine output, and length of hospital stay. Demographic features and preoperative laboratory values were similar for the 2 groups, except for age (Group I, 36 +/- 9 vs Group II, 33 +/- 8; P = .04). Intraoperatively, 7 patients (10%) in Group 1 and 9 (22%) in Group II required blood transfusions (P = .06). The respective amount of heterologous blood transfusion for Groups I and II was 96 +/- 321 mL vs 295 +/- 678 mL (P = .06). Postoperative renal and liver functions were not different between the 2 groups (P > .05). Patients in Group I had a shorter hospital stay than those in Group II (8.2 +/- 4.6 days vs 10.1 +/- 4.9 days; P = .03). In conclusion, a restrictive fluid management strategy with ANIH was a safe blood-salvage technique for LDLT. This approach was also associated with decreased length of hospital stay and a trend toward decreased transfusion requirements.


Assuntos
Transfusão de Sangue/estatística & dados numéricos , Hidratação , Hemodiluição/métodos , Hepatectomia/métodos , Doadores Vivos , Coleta de Tecidos e Órgãos/métodos , Adulto , Perda Sanguínea Cirúrgica , Tamanho Corporal , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória , Complicações Pós-Operatórias/terapia , Estudos Retrospectivos
8.
Transplant Proc ; 40(1): 245-7, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261598

RESUMO

From September 2001 until March 2007, we performed 127 living-donor liver transplantations in our transplantation center. Of 127 donors, 74 were men and 53 women, of overall mean donor age of 35.2 +/- 9.3 years (range, 20-56 years). Ninety-six (75.6%) were first-degree relatives, 18 (14.1%) were second-degree relatives, and 13 (10.3%) were spouses. We performed 34 (26.7%) left hepatic lobectomies, 33 (25.3%) left lateral segmentectomies, and 60 (48%) right hepatic lobectomies. The mean percentages of remnant to donor total liver volume for the right, left, and left-lateral lobectomies were 41.7%, 67.8%, and 75.1%, respectively. The mean length of patient postoperative hospital stay was 7.4 +/- 3.1 days (range, 3-33 days). There was no postoperative mortality. Ten complications occurred in 7 of the 127 donors (5.5%). Most complications were treated with radiologic interventions. In conclusion, donor safety should be the primary focus in living-donor liver transplantation. More experience, improved surgical techniques, and meticulous donor evaluation will help to minimize morbidity and mortality for living liver donors.


Assuntos
Hepatectomia/efeitos adversos , Doadores Vivos , Complicações Pós-Operatórias/epidemiologia , Coleta de Tecidos e Órgãos/efeitos adversos , Adolescente , Adulto , Criança , Família , Feminino , Lateralidade Funcional , Humanos , Masculino , Pessoa de Meia-Idade , Cônjuges
9.
Transplant Proc ; 40(1): 240-4, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261597

RESUMO

Biliary complications may present significant problems in orthotopic liver transplantation (OLT). Herein we have presented our outcomes of a biliary reconstruction technique without stenting in deceased- and living-donor OLT. Between September 2001 and May 2007, we performed 174 OLTs in 172 recipients. Before December 2006, we used various drainage techniques for biliary reconstruction. We retrospectively reviewed the biliary reconstructions performed without a drainage catheter in 33 OLTs (19 males, 14 females; median age, 25.2 +/- 20.7 years; range, 0.5-60 years) since December 2006. Thirteen of the 33 recipients were children: 7 were younger than 1 year at the time of OLT. Biliary reconstruction was performed with a duct-to-duct anastomosis in 25 recipients and with a Roux-en-Y hepaticojejunostomy in 8. Nine of the 33 grafts had 2 bile ducts, 2 had 3 bile ducts, and the remaining 22 had 1 bile duct. Biliary leak from the anastomotic site was seen in 1 recipient. The biliary stenoses observed in 2 recipients after OLT were treated with interventional radiologic techniques. Mean follow-up was 4.1 +/- 1.6 months (range, 20 days to 7 months). Biliary reconstruction without using a stent is safe for deceased- and living-donor OLT in all ages.


Assuntos
Ductos Biliares/cirurgia , Transplante de Fígado/métodos , Adolescente , Adulto , Anastomose Cirúrgica , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Procedimentos de Cirurgia Plástica , Estudos Retrospectivos , Stents
10.
Transplant Proc ; 40(1): 53-6, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261546

RESUMO

Because of the shortage of cadaveric donor organs, living donor liver transplantation (LDLT) has become an established therapy modality for end-stage liver disease. Based on recipient size, both right and left liver lobe grafts have been used successfully in LDLT. The aim of this study was to compare the risk of intraoperative complications and transfusion requirements between right and left lobe donors. We reviewed the charts of 54 right lobe (Group RL), 29 left lobe (Group LL), and 31 left lateral segment (Group LLS) donors who underwent lobectomy from January 2003 through January 2007. We recorded patient demographics, perioperative laboratory values, intraoperative fluid and transfusion requirements, intraoperative hemodynamic parameters, and complications. Demographic features and preoperative laboratory values were similar for the 3 groups, except for age (Group RL, 37.3 +/- 8.7; Group LL, 36.0 +/- 9.3; Group LLS, 31.7 +/- 9.4; P = .02). There were no significant differences in mean liver volumes among the groups (P > .05). Respective graft volumes were 803.1 +/- 139.2 mL, 438.0 +/- 122.7 mL, and 308.2 +/- 76.6 mL for Groups RL, LL, and LLS, respectively (P < .001). More patients in Group LLS required heterologous blood transfusion than did those in the other groups (P = .01). The incidence of intraoperative hypotension was similar for all groups (P > .05). Group RL had a significantly higher rate of intraoperative hypothermia than the other groups (P = .01). There were no intraoperative respiratory complications or cardiac events. These results indicated that both right and left donor lobectomies for LDLT were safe procedures with acceptable rates of minor intraoperative complications.


Assuntos
Hepatectomia/métodos , Transplante de Fígado/fisiologia , Doadores Vivos , Coleta de Tecidos e Órgãos/métodos , Adulto , Anestesiologia/métodos , Antígenos de Grupos Sanguíneos/análise , Diurese , Feminino , Lateralidade Funcional , Humanos , Doadores Vivos/psicologia , Doadores Vivos/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Preservação de Órgãos/métodos , Estudos Retrospectivos , Resultado do Tratamento
11.
Transplant Proc ; 40(1): 120-2, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261563

RESUMO

Alport's syndrome, a hereditary disorder characterized by a combination of nephritis and deafness, was first described in 1927. Herein, we have presented 20 cases of Alport's syndrome in renal transplant recipients. Between November 1975 and September 2006, we performed 1602 transplantations. 22 including 20 recipients (1.24%) with Alport's syndrome. The recipients were 16 males and 4 females of overall mean age 21.3 +/- 5.6 years (range, 14-35 years). Seventeen received kidneys from living-related and 5 from cadaveric donors. We retrospectively assessed recipient features: age, gender, physical examination, routine blood biochemistry, histopathological results, and audiometric test results, as well as postoperative complications in each of these 20 recipients. Ten instances of acute rejection occurred in 8 recipients. There were 3 postoperative complications, all of which were lymphoceles. We had no vascular or urinary system complications. At the time of this report, 19 recipients are alive; the other 1 died due to Kaposi's sarcoma. Sixteen recipients display good renal function and creatinine levels ranging from 0.8 to 2.9 mg/dL during a mean follow-up of 8.4 +/- 4.8 years (range, 1 to 20 years). Three of 19 recipients returned to hemodialysis at 17, 13, and 6 years after their first graft, respectively. Retransplantation was performed on 2 recipients at 18 and 7 years, respectively, after their first transplantation. In conclusion, although the number of patients in our series was small, in light of their uneventful postoperative periods and the good posttransplantation renal function in our recipients, we consider Alport's syndrome recipients as good candidates for transplantation.


Assuntos
Rejeição de Enxerto/epidemiologia , Transplante de Rim/efeitos adversos , Nefrite Hereditária/cirurgia , Doença Aguda , Adolescente , Adulto , Feminino , Sobrevivência de Enxerto , Humanos , Terapia de Imunossupressão/métodos , Imunossupressores/uso terapêutico , Falência Renal Crônica/etiologia , Falência Renal Crônica/cirurgia , Transplante de Rim/mortalidade , Doadores Vivos , Masculino , Estudos Retrospectivos , Análise de Sobrevida
12.
Transplant Proc ; 40(1): 145-7, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261572

RESUMO

Renal transplantation is the preferred treatment for most patients with end-stage renal disease. Postoperative vascular complications that significantly affect graft loss include stenosis and renal artery thrombosis. Our transplant team has performed 1635 procedures since 1975. Since December 2003, we have performed a corner-saving technique for the renal artery anastomoses in 183 recipients. In this study, we retrospectively analyzed the outcome data from these procedures in 43 women and 140 men of overall mean age of 31.6 years (range, 7-66 years). Graft tissue was obtained from deceased donors in 47 and from living donors in 136 recipients. The mean age of the donors was 39.8 years (range, 6-67 years). The graft renal arteries were spatulated from the posterior walls of the renal artery to provide wide anastomoses. Using this technique, a renal artery stenosis occurred at 5 months after renal transplantation in 1 recipient (0.54%). It was treated successfully with balloon angioplasty and placement of an intraluminal stent. We did not encounter any instances of renal artery thrombosis during a mean follow-up of 20.6 +/- 11.6 months (range, 1-40 months). During follow-up, 5 recipients died, and 9 returned to hemodialysis. At the time of this writing, the remaining 169 recipients (92.3%) are alive with good graft function. In conclusion, owing to its low complication rate, we believe our new corner-saving technique to be the safest way to perform a renal artery anastomosis.


Assuntos
Anastomose Cirúrgica , Transplante de Rim/fisiologia , Obstrução da Artéria Renal/cirurgia , Artéria Renal/cirurgia , Adolescente , Adulto , Idoso , Criança , Feminino , Humanos , Transplante de Rim/efeitos adversos , Transplante de Rim/mortalidade , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Obstrução da Artéria Renal/mortalidade , Estudos Retrospectivos , Análise de Sobrevida
13.
Transplant Proc ; 40(1): 213-8, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261590

RESUMO

Hepatocellular carcinoma (HCC), which worldwide is the fifth most common malignancy in men and the ninth most common malignancy in women, accounts for 6% of all malignant lesions. We evaluated our results of liver transplantation for patients with HCC. Between January 2004 and April 2007, 31 patients (5 females, 26 males; age range, 1.1-65 years) with preoperatively or incidentally diagnosed HCC underwent orthotopic liver transplantation (OLT) at our center. Eleven grafts were from deceased donors, and 20 from living-related donors. Inclusion criteria were no invasion of a major vascular structure and no evidence of extrahepatic disease. In 17 patients, tumors exceeded the Milan criteria. According to the tumor-node-metastasis staging system, 6 patients had stage 1, 8 had stage II, 2 had stage III, and 15 had stage 4A carcinoma. Three complications occurred in 31 patients: hepatic arterial thrombosis in 1 patient and biliary leakage in 2. At a mean follow-up of 24.3 +/- 12.5 months, 29 patients are well with excellent graft function. Two patients died at 23 and 17 months after OLT respectively. The longest graft survival is 43 months. There have been 4 tumor recurrences, namely, at 4, 26, 24, and 29 months after OLT, respectively. Patient and disease-free survival rates are 93.5% and 90%, respectively. In conclusion, OLT provided long-term disease-free survival for patients with HCC, even those with locally advanced tumors who had no effective alternative treatment than transplantation.


Assuntos
Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Adolescente , Adulto , Carcinoma Hepatocelular/patologia , Criança , Pré-Escolar , Feminino , Sobrevivência de Enxerto , Humanos , Lactente , Neoplasias Hepáticas/patologia , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Estadiamento de Neoplasias , Estudos Retrospectivos , Análise de Sobrevida
14.
Transplant Proc ; 40(1): 228-30, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261593

RESUMO

Wilson's disease is an inherited disorder of copper metabolism characterized by reduced biliary copper excretion, which results in copper accumulation in the tissues with liver injury and failure. Orthotopic liver transplantation (OLT) can be lifesaving for patients with Wilson's disease who present with fulminant liver failure and for patients' unresponsive to medical therapy. The aim of this study was to review our experience with OLT for patients with Wilson's disease. Between September 2001 and April 2007, 25 OLTs were performed in 24 patients (7 females and 17 males) with Wilson's disease of mean age 15.6 +/- 9.9 years (range, 5-51 years). Six patients underwent transplantation owing to coexistent fulminant hepatic failure and 18 with chronic advanced liver disease with (n = 8) or without (n = 10) associated neurologic manifestations. We performed 3 full-size, deceased-donor OLTs and 22 living-related donor OLTs. Eight patients had a family history of Wilson's disease. We detected a Kayser-Fleischer ring in 18 patients. All patients had a low serum ceruloplasmin level (mean, 27.8 mg/dL) and a high urinary copper excretion level (mean, 4119 mug/d) before OLT. Following successful OLT, there was a significant reduction in urinary copper excretion (median, 37.1 mug/d) in all patients. Mean follow-up was 21.7 +/- 19.8 months (range, 2-60 months). Retransplantation was required in 1 patient at 12 days after the first OLT owing to primary graft nonfunction. Five of the 24 patients died within 4 months of the surgery. The remaining 19 survivors (79%) have remained well, with normal liver function and no disease recurrence. In conclusion, OLT was a curative procedure for Wilson's disease among patients presenting with fulminant hepatic failure and others with end-stage hepatic insufficiency. After OLT, the serum ceruloplasmin level increased to the normal range, urinary copper excretion decreased, and neurologic manifestations improved.


Assuntos
Degeneração Hepatolenticular/cirurgia , Transplante de Fígado/fisiologia , Adolescente , Adulto , Cadáver , Causas de Morte , Ceruloplasmina/análise , Criança , Pré-Escolar , Família , Feminino , Seguimentos , Humanos , Transplante de Fígado/mortalidade , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Análise de Sobrevida , Doadores de Tecidos
15.
Transplant Proc ; 40(1): 231-3, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261594

RESUMO

Biliary atresia is the most common indication for liver transplantation (OLT) in children. We present our experience with OLT as a treatment for end-stage liver disease in children with biliary atresia. We performed a retrospective review of 20 biliary atresia patients (11 male, 9 female patients; mean age, 21.4 months; range, 6 to 84 months) who had undergone OLT. Mean preoperative weight and height were 10.1 +/- 5.8 kg and 72.5 cm, respectively. Thirteen recipients were younger than 1 year of age, and 15 weighed less than 10 kg at the time of OLT. Fourteen recipients had undergone a Kasai operation prior to the OLT. The mean serum total bilirubin level was 22.56 mg/dL before OLT. Eighteen left lateral segment grafts and two whole grafts were transplanted. The mean recipient operative time was 9.25 hours. The mean recipient intraoperative blood loss was 1.81 U. Two hepatic arterial thromboses and one biliary leak occurred soon after surgery. Portal vein stenoses developed in two recipients at 10 and 12 months after OLT; both were treated with balloon dilatation. Two biliary stenoses, which occurred at 10 months and 3.5 years after surgery, were treated with balloon dilatation. Two recipients died at 2 and 12 days after OLT because of respiratory distress syndrome and sepsis, respectively. The remaining 18 (90%) recipients are alive with good graft function. The overall rejection rate was 31.25%. OLT is an effective treatment for children with biliary atresia and a failed Kasai procedure. Living related liver grafts represented an excellent organ supply for these patients.


Assuntos
Atresia Biliar/cirurgia , Transplante de Fígado/fisiologia , Perda Sanguínea Cirúrgica , Peso Corporal , Criança , Pré-Escolar , Feminino , Seguimentos , Sobrevivência de Enxerto , Humanos , Lactente , Transplante de Fígado/mortalidade , Masculino , Complicações Pós-Operatórias/classificação , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Análise de Sobrevida
16.
Transplant Proc ; 39(4): 826-8, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17524824

RESUMO

The aim of this study was to assess the impact of living-donor liver transplantation on the donor's quality of life. Among the 48 performed at our hospital from October 2003 to June 2006, 46 (27 men, 19 women; mean age, 37.4 years) were followed for more than 4 months (mean, 16.5+/-8 months). In April 2006, these donors participated in a survey that included medical and psychosocial outcomes. Seven complications occurred in four of 46 donors (8.6%): two biliary leaks, two wound infections, one incisional hernia, one portal vein thrombosis, and one deep venous thrombosis. For the donor with portal vein thrombosis, the vein was recanalized, and she recovered without treatment; a bile leak from the cut liver surface and an incisional hernia also developed in the same donor. The biliary leak was treated with percutaneous drainage, and the incisional hernia was repaired surgically. Fifteen donors were housewives, 31 worked outside the home, and 94% returned to their work. A change in body image was reported in 4.3% of the donors. None reported impaired sexual function. Complete recovery occurred in 86% of donors, 94% of the donors said that they would donate again if necessary, and 97% believe that they had benefited from the donation experience. In conclusion, almost all donors were able to return to their prior jobs within a few months of surgery, and most donors were satisfied with the donation procedure.


Assuntos
Hepatectomia/métodos , Doadores Vivos , Qualidade de Vida , Coleta de Tecidos e Órgãos , Adulto , Atitude Frente a Saúde , Antígenos de Grupos Sanguíneos , Família , Feminino , Nível de Saúde , Hepatectomia/psicologia , Humanos , Tempo de Internação , Fígado/anatomia & histologia , Masculino , Pessoa de Meia-Idade , Coleta de Tecidos e Órgãos/psicologia , Resultado do Tratamento
17.
Transplant Proc ; 39(4): 1145-8, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17524916

RESUMO

Living-donor liver transplantation is another treatment option to cadaveric liver transplantation in adult recipients. We report the outcomes of 49 right lobe adult living-donor liver transplantations performed at our institution between April 2003 and June 2006. The mean age of the recipients was 41.7 +/- 12.5 years. The median graft-to-recipient weight ratio was 1.2% +/- 0.4%. In recipients, the mean operative time was 10.6 +/- 2.7 hours. The mean number of blood transfusions administered was 4.1 +/- 5.1 units. The mean time spent in the intensive care unit was 2.3 +/- 1.5 days. In recipients, five vascular and five biliary complications occurred during the early postoperative period, and four vascular and two biliary complications developed in the late postoperative period. Thirteen of the 49 recipients died within 4 months of surgery. The mean age of the donors was 36.6 +/- 9 years. In the donors, the mean operative time was 6.4 +/- 1.6 hours, mean residual liver volume was 43.3% +/- 6.1%, and the mean hospital stay was 9.5 +/- 4.5 days. Two donors required an intraoperative blood transfusion. None of our donors died, but six complications occurred in four donors. The mean postoperative follow-up was 13.4 +/- 9.6 months. In conclusion, in Turkey, as in other countries, organ demand exceeds organ availability. Graft size presents a problem for adult recipients, but right lobe living donor transplant may be a life-saving option for these recipients when performed by experienced surgical teams.


Assuntos
Hepatectomia/métodos , Transplante de Fígado/métodos , Doadores Vivos , Coleta de Tecidos e Órgãos/métodos , Adulto , Transfusão de Sangue , Família , Feminino , Humanos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Estudos Retrospectivos , Cônjuges , Análise de Sobrevida , Resultado do Tratamento
18.
Transplant Proc ; 39(4): 1149-52, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17524917

RESUMO

In the absence of cadaveric donor liver transplantation, living-donor liver transplantation (LDLT) is an alternative option for patients with end-stage liver disease. The objective of this study was to evaluate the outcome of LDLT at a single medical center in Turkey. We retrospectively analyzed the results of 101 LDLTs in 99 recipients with end-stage liver disease. We transplanted 49 right liver lobes, 16 left lobes, and 36 hepatic segments II and III. Most donors (46%) were parents of the recipients. Seventeen recipients had concomitant hepatocellular carcinoma and cirrhosis. Retransplantation was performed in two recipients. Ten hepatic arterial thromboses, 1 hepatic arterial bleeding, and 12 biliary leaks occurred in the early postoperative period. Most complications were treated with interventional techniques. Three hepatic vein stenoses, three portal vein stenoses, one hepatic arterial stenosis, and six biliary stenoses developed during the late postoperative period. Recipients with those complications were treated with interventional techniques. Mean follow-up was 14.2 +/- 10.9 months. During that time, no tumor recurrence was detected in any recipient with hepatocellular carcinoma. Twenty-two recipients died during the follow-up. At this time, the remaining 77 recipients (77%) are alive, exhibiting good graft function. In general, complication rates are slightly higher after LDLT than after cadaveric liver transplantation. However, most complications can be treated with interventional techniques. LDLT continues to be a life-saving option in countries without satisfactory cadaveric donation rates.


Assuntos
Transplante de Fígado/fisiologia , Doadores Vivos , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Hepatectomia/métodos , Humanos , Lactente , Fígado/anatomia & histologia , Doadores Vivos/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão , Estudos Retrospectivos , Coleta de Tecidos e Órgãos/métodos
19.
Transplant Proc ; 39(4): 1153-6, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17524918

RESUMO

Orthotopic liver transplantation remains a major medical and surgical challenge in small pediatric patients. From April 2003 to June 2006, 21 small babies (each of whom weighed less than 10 kg or was younger than 1 year of age) underwent orthotopic liver transplantation. Five were girls and 16 were boys with a mean age of 15.7 +/- 9.3 months (range, 2-24 months); their mean weight at the time of transplantation was 9.8 +/- 3.6 kg (range, 6-16 kg). All transplants were obtained from a living-related donor. Left lateral segment was used for all transplantations. The median graft-to-recipient weight ratio was 3.5% +/- 1.2% (range, 1.5%-6.1%). During the early postoperative period, hepatic arterial thrombosis was identified in 4 patients, and a biliary leak was detected in 2 patients. In 2 patients, portal vein stenosis was identified during the late postoperative period. At the time of this writing, the 17 alive patients (81%) exhibited good graft function at median follow-up of 14.8 +/- 10.9 months (range, 1-39 months). Four patients died during the follow-up. Histological examination revealed hepatocellular carcinoma in 2 patients, and Burkitt's lymphoma in 1 patient. In conclusion, our data confirmed that living-related donors, especially in this age group, provide a reliable source for the organ pool. Satisfactory results can be achieved despite the anatomic handicaps of this age group.


Assuntos
Transplante de Fígado/fisiologia , Anastomose Cirúrgica , Ductos Biliares/cirurgia , Peso Corporal , Pré-Escolar , Feminino , Sobrevivência de Enxerto , Hepatectomia/métodos , Humanos , Lactente , Fígado/anatomia & histologia , Hepatopatias/classificação , Hepatopatias/cirurgia , Transplante de Fígado/mortalidade , Doadores Vivos , Masculino , Tamanho do Órgão , Estudos Retrospectivos , Análise de Sobrevida , Coleta de Tecidos e Órgãos/métodos , Resultado do Tratamento
20.
Transplant Proc ; 39(4): 1161-3, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17524920

RESUMO

In pediatric liver transplantation, both for cadaveric and living-related patients, the Roux-en-Y hepaticojejunostomy is often preferable to biliary reconstruction. Duct-to-duct biliary reconstruction in pediatric patients has been utilized only in a limited numbers of studies. Here, we retrospectively review our experience with duct-to-duct biliary reconstruction in pediatric liver transplantation patients. Since September 2001, 46 liver transplantations have been performed in 44 patients (29 boys and 15 girls of mean age, 8.4 +/- 5.5 years). For the anastomoses, a corner-saving suture technique was used with 6-0 or 7-0 polypropylene monofilament nonabsorbable suture. A T tube was used in three patients, and in 11 patients, a straight feeding tube was inserted from the recipient common bile duct to the anastomotic site. A transhepatic biliary catheter insertion technique was used in 28 patients for external bile drainage; the remaining four patients had no tubes or stents. Four patients developed bile leakage in the early postoperative period. Three of these patients were treated with percutaneous drainage with excellent outcomes; the remaining patient required reoperation with a Roux-en-Y hepaticojejunostomy for bile leakage. Four biliary stenoses occurred in the late postoperative period. All biliary stenoses were successfully treated with balloon dilatation. There was no mortality or graft loss due to biliary complications. Of the 44 original patients, 36 (82%) are well at this time, with optimal liver function during follow-up (2-34 months). The remaining eight (18%) died during the study from acute respiratory distress syndrome (n=2), sepsis with multiorgan failure (n=5), and intracranial bleeding (n=1). Our results showed that duct-to-duct biliary reconstruction is a safe and easy technique for pediatric patients.


Assuntos
Ductos Biliares/cirurgia , Transplante de Fígado/fisiologia , Adolescente , Adulto , Anastomose em-Y de Roux , Criança , Pré-Escolar , Feminino , Hepatectomia/métodos , Humanos , Lactente , Masculino , Procedimentos de Cirurgia Plástica , Estudos Retrospectivos , Coleta de Tecidos e Órgãos/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA