Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 145
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
País de afiliação
Intervalo de ano de publicação
1.
Acta Chir Belg ; 114(6): 393-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-26021684

RESUMO

BACKGROUND: We retrospectively evaluated the results of surgical treatment for anterior abdominal wall -desmoid tumours. METHODS: Records for 13 patients operated on for desmoid tumours from 1997-2013 were searched for age, gender, abdominal/pelvic surgical history, pregnancy, Gardner's syndrome, pre-operative radiological examinations, tumour size, multifocality, surgical procedure, tumour presence at surgical margins, recurrence, morbidity, and mortality. Local recurrence-free survival probabilities were estimated by the Kaplan-Meier method and stratified by various clinicopathological variables. RESULTS: There were 11 female (84,6%) and 2 male (15,4%) patients with a median age of 36 years. Seven (53,8%) -patients had previous abdominal/pelvic surgery, five (38,5%) had a history of pregnancy, and one (7,6%) had Gardner's Syndrome. Two (15,3%) patients had multifocality on their pre-operative radiological examinations. Mean tumour -diameter was 4,6 cm (SD 3,2 cm ; range 2-12 cm). After the excision of the masses in five (38,5%) patients, synthetic materials were used to close the abdominal wall defects. Two (15,3%) patients with positive surgical margins after -surgery were re-operated. Three (23%) patients required a second surgical intervention after the mass excisions were performed. Mean follow-up time was 56,7 months. Recurrence was observed in three patients during follow-up. Increased tumour size, history of previous abdominal/pelvic surgery, and the presence of multifocality had a negative effect on local recurrence-free survival. There was no mortality during follow-up. CONCLUSIONS: Desmoid tumours are characterized by high recurrence, even after proper surgical excisions. Preoperative differential diagnoses of these tumours should be done and a post-operative follow-up protocol should be followed.


Assuntos
Neoplasias Abdominais/cirurgia , Parede Abdominal/patologia , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Fibromatose Agressiva/cirurgia , Neoplasias Abdominais/diagnóstico , Parede Abdominal/cirurgia , Adulto , Diagnóstico Diferencial , Fibromatose Agressiva/diagnóstico , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem
2.
Acta Chir Belg ; 110(4): 467-70, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20919671

RESUMO

PURPOSE: to analyze the effect of anxiety and depression on the postoperative complications and length of hospitalization of patients with breast cancer. Beck's Depression Inventory (BDI) and Hospital Anxiety and Depression Scale (HADS) were filled out by the patients pre-operatively. Patients were asked to rate their pain by the visual analogue scale (VAS) after surgery. Age, seroma volume, day of drain withdrawal, complications, and pathological stages were noted. The median age of 49 patients with the diagnosis of breast cancer was 51 (36-80). There was a significant correlation between the pain score and Beck, HADS, HADS (anxiety) and HADS (depression) (8 hours ; p = 0.021, 0.001, 0.004, 0.005 and 24 hours ; p = 0.005, 0.012, 0.006, 0.120). The mean HADS depression score in those patients with complications was 9.1 +/- 4.2 and that of patients with no complications was 6.6 +/- 3.1 (p = 0.047). The mean hospital stay of patients with a normal HADS score (< 19) was 2.9 +/- 1.1 days, whilst that of patients with an abnormal HADS score was 3.8 +/- 1.2 days (p = 0.016). Patients with abnormal HADS anxiety and abnormal HADS (total) scores had an earlier stage of breast cancer (p = 0.077, p = 0.063). The psychological status of breast cancer patients effects their postoperative recovery period and it is easy to diagnose these patients by some brief questionnaires.


Assuntos
Neoplasias da Mama/psicologia , Neoplasias da Mama/cirurgia , Mastectomia , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/epidemiologia , Depressão/epidemiologia , Feminino , Humanos , Tempo de Internação , Pessoa de Meia-Idade , Medição da Dor , Prevalência , Resultado do Tratamento
3.
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
4.
Transplant Proc ; 40(1): 234-7, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18261595

RESUMO

AIM: The aim of this study was to investigate the usefulness of hepatobiliary scintigraphy for the evaluation of liver grafts in the early postoperative period in patients receiving liver transplants from living related donors. MATERIALS AND METHODS: Fifty-six liver transplant recipients who received grafts from living related donors were included in the study. We examined the hepatobiliary scintigraphies of all patients, which were performed 7 to 10 days after the transplantation. The scintigraphic images were evaluated visually in terms of hepatic parenchymal function and biliary and vascular complications. RESULTS: In 44/56 recipients, hepatobiliary scintigraphy was completely normal in the early postoperative period. However, in 6/56 cases, scintigraphy was interpreted to show parenchymal dysfunction. In these patients, histopathologic confirmation by biopsies revealed four cases of hepatocellular damage/cholestasis, one acute rejection, and one cholangitis. In 3/56 patients, hepatobiliary scintigraphy demonstrated a hypoactive area in the liver graft; however, the other areas showed normal function. When the abdominal computed tomography (CT) and CT angiography were evaluated, these hypoactive areas were discovered to be related to minor vascular problems. In 3/56 liver graft recipients whose grafts showed normal parenchymal function scintigraphically, images were interpreted to indicate bile leak because accumulation of tracer was seen at an abnormal physiological site. CONCLUSION: Hepatobiliary scintigraphy, which is a noninvasive and objective method, is useful to assess grafts in the early postoperative period among patients who received liver transplants from living related donors.


Assuntos
Vesícula Biliar/diagnóstico por imagem , Hepatectomia/métodos , Fígado/diagnóstico por imagem , Doadores Vivos , Tecnécio , Coleta de Tecidos e Órgãos/métodos , Adolescente , Adulto , Família , Feminino , Humanos , Iminoácidos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Cintilografia , Compostos Radiofarmacêuticos
5.
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
6.
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
7.
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
8.
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
9.
Transplant Proc ; 39(4): 898-900, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17524844

RESUMO

The shortage of cadaveric kidneys is growing in Turkey despite intensive efforts to find a solution. Living related donors are the primary source of kidneys in developing countries. When a first-degree relative of the patient is not available, a second-degree relative or a genetically unrelated but emotionally related donor, such as a spouse, becomes an alternative. From November 1985 to June 2006, 81 living unrelated kidney transplantations were performed between spouses at our hospital. Seventy-one of the donors were women, and 10 were men. The mean donor age was 33.9 +/- 8.5 years and the mean patient age was 38.5 +/- 8.8 years. The posttransplantation patient and graft survival rates were. 1 year: 93% patient survival, 83% graft survival; 3 years: 90% patient survival, 78% graft survival; and 5 years: 83% patient survival, 76% graft survival. During the posttransplantation period (mean, 82.5 +/- 61.4 months range, 6-216 months), seven patients died: three from sepsis, one from gastrointestinal hemorrhage, two from myocardial infarction, and one from pancreatitis. Three of those seven patients died with a functioning graft, and the seven other grafts were lost because of chronic rejection. To obstruct the underground trade in organs sold for transplantation, our center does not accept living unrelated organ donor candidates other than a spouse. Interspousal kidney transplantation is an important option with good clinical results. It provides the couple with a better quality of life, offers the opportunity to share the joy of giving, and enables a husband and wife to receive the "gift of life" from each other.


Assuntos
Transplante de Rim/estatística & dados numéricos , Cônjuges , Corticosteroides/uso terapêutico , Adulto , Feminino , Humanos , Imunossupressores/uso terapêutico , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Turquia
10.
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
11.
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
12.
Transplant Proc ; 39(4): 1171-4, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17524923

RESUMO

In this study, we evaluated our early results of liver transplantation for hepatocellular carcinoma (HCC). Between January 2004 and June 2006, 26 patients (4 females, 22 males; aged 1.1-65 years) with preoperatively diagnosed or incidental HCC underwent liver transplantation at our center. Inclusion criteria (independent of tumor size and number of tumor nodules) were no invasion of major vascular structures and no evidence of extrahepatic disease. In 13 of the patients, tumors were beyond the Milan criteria. At this writing, at a mean follow-up of 16.5 months (range, 1-31 months), all patients were doing well with excellent graft function. The longest survival is 2.5 years, and our patient survival rate is 100%. There has been only 1 tumor recurrence, which occurred 4 months after liver transplantation. In conclusion, liver transplantation provides long patient and disease-free survival, even in patients with HCC that exceeds the Milan criteria.


Assuntos
Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Estudos Retrospectivos , Análise de Sobrevida , Taxa de Sobrevida
13.
Transplant Proc ; 39(5): 1359-61, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17580139

RESUMO

The aim of this study was to determine the safety and efficacy of diagnostic/therapeutic laparoscopy in the management of peritoneal Tenchoff catheter placement in end-stage renal disease patients who had previous abdominal surgery and malfunctioning peritoneal dialysis catheters. From 1999 to 2004, 16 videolaparoscopic procedures were performed in 16 patients who had previous laparotomies. Laparoscopy was performed before peritoneal catheter placement in seven (group 1) and in 9 patients with peritoneal dialysis catheters in place, laparoscopy was performed for the management of catheter dysfunction (group 2). All laparoscopic procedures were performed under general anesthesia. The mean follow-up was 31.5 (range, 11 to 60) months. In group 1, six patients (85.7%), and in group 2, seven patients (77.7%) are still on peritoneal dialysis. Laparoscopy resulted in the placement/salvage of peritoneal dialysis catheter dysfunction. Placement of catheter was accomplished in patients who would have been previously designated as unsuitable candidates. Laparoscopy is a useful tool in every step of a peritoneal dialysis program.


Assuntos
Laparoscopia/métodos , Diálise Peritoneal Ambulatorial Contínua , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Diálise Peritoneal Ambulatorial Contínua/efeitos adversos , Reoperação , Estudos Retrospectivos , Gravação em Vídeo
14.
Transplant Proc ; 38(2): 443-8, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16549143

RESUMO

INTRODUCTION: Specific criteria for diagnosing an acute rejection episode (ARE) are not present on renal scintigraphy. However, a deterioration in renal function observed on serial imaging is suggestive of an ARE during the early posttransplantation period. In this study, we evaluated Tc-99m DTPA renal scintigraphy findings among patients with renal allograft dysfunction. The aim was to define criteria for ARE on a single imaging study alone. MATERIALS AND METHODS: This study included 82 patients with renal allograft dysfunction, each of whom had a specific biopsy-proven pathology. From the background-corrected Tc-99m DTPA renal time-activity curves, the following parameters were computed: the ratio of counts at peak perfusion to that at plateau (P:PL) and the ratio of counts at peak perfusion to that at peak uptake (P:U). The images were inspected visually for excretion patterns and other morphological changes. RESULTS: A specific renogram pattern, that is an increase in perfusion to uptake ratio together with a nearly flat uptake curve and preserved peak/plateau pattern, was observed in 67% of low-grade AREs. In contrast, a flat uptake curve usually occurred together with a loss of peak/plateau pattern in a high-grade ARE. The findings that were highly specific for ARE on visual inspection were little or no collecting system activity, pelvic hypoactivity, and indistinctness of the corticomedullary junction. CONCLUSIONS: Our results indicate that in low-grade ARE, there is decreased filtration relative to perfusion as evidenced by a decrease in the perfusion-to-uptake ratio with loss of a peak/plateau pattern. A hypoactive pelvis with little activity in the collecting systems may be due to edema in the renal interstitium and pelvicalyceal structures.


Assuntos
Rejeição de Enxerto/diagnóstico por imagem , Transplante de Rim/imunologia , Rim/diagnóstico por imagem , Compostos Radiofarmacêuticos , Pentetato de Tecnécio Tc 99m , Doença Aguda , Biópsia , Humanos , Transplante de Rim/patologia , Transplante de Rim/fisiologia , Complicações Pós-Operatórias/diagnóstico por imagem , Período Pós-Operatório , Renografia por Radioisótopo , Transplante Homólogo
15.
Transplant Proc ; 38(2): 543-7, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16549170

RESUMO

Urologic complications, observed since the beginning of renal transplantation, cause significant morbidity and mortality. In the first few years the procedure was performed, incidence of urologic complications was reported to be 10% to 25%. Recently, the incidence of urologic complications after renal transplantation has decreased to 2.5% to 12.5%; unfortunately, a higher incidence exists in pediatric recipients, reaching approximately 20% with an associated 58% and 74% graft survival rates for cadaveric and living-related transplantation, respectively. We retrospectively analyzed the postoperative urologic complications reported in the medical charts of 1523 consecutive kidney transplantations (1130 men, 74.2%; 393 women, 25.8%; mean age, 31.9 +/- 10.9 years; range, 7 to 64 years; 354 cadaveric, 23.2%; 1169 living, 76.8%) performed by our team since 1975. The first 321 procedures took place at Hacettepe University Hospital in Ankara, Turkey, and the remaining 1202 were performed at Baskent University Hospital in Ankara. Urologic complications occurred in 46 (3%) recipients. Twenty-three (1.5%) of these patients had urine leakage, 15 (1%) had urinary obstruction due to ureteral stricture, 6 (0.4%) had distal ureter necrosis, and 2 (0.1%) developed renal calculi in the late postoperative period. Twenty-four out of 46 required reoperation for urologic complications. The remaining 22 patients were treated conservatively in our interventional radiology department with excellent results. In conclusion, urologic complications will always occur in the posttransplant period. Early diagnosis by experienced personnel and use of interventional radiology can greatly reduce the need for surgical treatment.


Assuntos
Transplante de Rim/efeitos adversos , Doenças Urológicas/epidemiologia , Adolescente , Adulto , Criança , Feminino , Sobrevivência de Enxerto , Humanos , Terapia de Imunossupressão/métodos , Incidência , Transplante de Rim/imunologia , Transplante de Rim/métodos , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Doenças Ureterais/epidemiologia , Doenças Urológicas/classificação , Doenças Urológicas/etiologia
16.
Transplant Proc ; 38(2): 575-8, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16549179

RESUMO

INTRODUCTION: Liver transplantation is the only curative treatment for patients with cirrhosis and unresectable hepatocellular carcinoma (HCC) without extrahepatic dissemination. Since criteria for transplantation in HCC are controversial, we evaluated our early results of liver transplantation for unresectable HCC. MATERIALS AND METHODS: Three women and 14 men (age range, 1.1 to 64 years) with preoperatively diagnosed or incidentally discovered HCC underwent liver transplantation. Six grafts were obtained from cadaveric donors, and each of the remaining 11 grafts from a living related donor. Criteria for participation, independent of tumor size and number of tumor nodules, were no invasion of major vascular structure and no evidence of extrahepatic disease. In nine patients, tumors were beyond the Milan criteria. Twelve patients (86.7%) received tacrolimus and 2 (13.30%), rapamycin monotherapy with early withdrawal of corticosteroid therapy. Two patients underwent neoadjuvant chemoembolization before transplantation; none received adjuvant chemotherapy. Seven patients with hepatitis B virus infection underwent antiviral prophylaxis with antibody to hepatitis B surface antigens and lamivudine. RESULTS: During follow-up (range, 1 to 17 months), all patients exhibited excellent graft function. Imaging studies revealed no evidence of tumor recurrence and no elevation of alpha fetoprotein or carcinoembryonic antigen levels. DISCUSSION: Low-dose immunosuppressive therapy and expanded criteria for liver transplantation in patients with HCC, especially when donation from a living related donor is possible, appear to inhibit disease recurrence and improve outcomes.


Assuntos
Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/métodos , Adolescente , Adulto , Idoso , Cadáver , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Doadores de Tecidos , Resultado do Tratamento
17.
Transplant Proc ; 38(2): 584-8, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16549181

RESUMO

Biliary complications are one of the most important problems in liver transplantation. Despite various refinements of surgical technique, liver transplantation is associated with significant numbers of biliary problems. In this article, we describe our novel "intraoperative transhepatic biliary catheter insertion" technique for biliary reconstruction in 29 patients, since November 2004 comparing results before and after its implementation. 5-F Kumpe catheter is inserted into the biliary system in two steps. The first is completed at the back table, and the second during the recipient operation. The grafts were from cadavers in 10 cases, with the remaining ones from living donors. Ten patients received whole-liver grafts, 11 received a right lobe, and eight received a left-lateral lobe or left lobe. The mean weight of the living donor grafts was 598 g (range = 270 to 975 g). The mean graft weight-to-body weight ratio in the living donor liver transplantations was 1.6% +/- 1.0% (range, 0.8% to 4.1%). Intraoperative transhepatic biliary catheter insertion was performed with a duct-to-duct anastomosis in 27 cases and with a Roux-en-Y hepaticojejunostomy in two cases. The only biliary complication was one case (3.4%) of bile leakage from the anastomotic site. This rate is significantly lower than that for duct-to-duct biliary reconstructions prior to the new catheter technique (13.0%; P < .05). This new technique of biliary reconstruction with intraoperative biliary catheter insertion has significantly reduced our biliary complication rate. Transhepatic biliary stenting prevents biliary complications and makes it simple to maintain percutaneous access in case such problems arise. However, further studies are needed to compare incidence rates of biliary complications when our novel technique is used versus other surgical techniques.


Assuntos
Ductos Biliares/cirurgia , Transplante de Fígado/métodos , Cadáver , Hepatectomia/métodos , Humanos , Doadores Vivos , Procedimentos de Cirurgia Plástica , Estudos Retrospectivos , Doadores de Tecidos , Coleta de Tecidos e Órgãos/métodos
18.
Transplant Proc ; 38(2): 619-21, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16549190

RESUMO

Among 71 patients, 19 (26.7%) experienced tacrolimus-related complications including 15 neurologic reactions and four problems with nephrotoxicity. Seven of these patients received grafts from cadaveric donors and 12 from living donors. Nine patients were children. The cohort included 5 female and 14 male subjects of mean age 26 +/- 20 (min 6, max 65) years. The common indications for the liver transplantation were cholestatic and metabolic diseases in pediatric patients, and viral hepatitis in adult patients. Blood tacrolimus levels were within the normal range. All patients with neurologic complications received antiepileptic therapy and drug conversion to rapamycin in 4 cases and to cyclosporine (CsA) in 11 cases. Six cases with Wilson disease and all cases with tyrosinemia experienced neurologic complications, which reversed in all but one case. In four cases with nephrotoxicity, we switched to rapamycin. Renal function improved in all cases. Patients with Wilson disease and tyrosinemia were more susceptible to the neurologic side effects of tacrolimus. In these cases we recommend the use of drugs with fewer neurologic side effects. Tacrolimus also has nephrotoxic effects, which can be reversed by converting to rapamycin.


Assuntos
Transplante de Rim/efeitos adversos , Transplante de Fígado/efeitos adversos , Tacrolimo/efeitos adversos , Ciclosporina/uso terapêutico , Degeneração Hepatolenticular/cirurgia , Humanos , Imunossupressores/efeitos adversos , Transplante de Rim/imunologia , Transplante de Fígado/imunologia , Doenças do Sistema Nervoso/induzido quimicamente , Doenças do Sistema Nervoso/epidemiologia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/imunologia , Transtornos Psicóticos/etiologia , Estudos Retrospectivos , Fatores de Risco
19.
Transplant Proc ; 38(9): 2957-60, 2006 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17112873

RESUMO

Biliary complications are some of the most critical problems in liver transplantation. Despite various refinements in surgical technique, different types of liver transplantations are associated with significant numbers of biliary problems. In this study, we analyzed the results of biliary reconstructions in 127 liver transplant recipients at our center from April 2001 to May 2006. Through November 2004, we used different techniques for biliary reconstruction in 66 of these patients, including duct-to-duct (DD) anastomoses, Roux-en-Y hepaticojejunostomy (RYHJ), anastomoses over T tubes or stents, and anastomoses without stenting. During the first period, we used a DD anastomosis in 15 cadaveric whole liver grafts and in 25 right lobe and 12 left lobe or left lateral segment grafts from living-related donors. RYHJ was preferred in 2 cadaveric and 12 left lateral segment grafts. Beginning in November 2004, we employed intraoperative transhepatic biliary catheter insertion in 61 patients (29 children, 32 adults). In the most recent 61 cases of 13 liver grafts from cadavers and 48 from living-related donors, 14 patients (2 children and 12 adults) received whole-liver grafts, 22 (all adults) a right lobe, and 26 (all children) a left lateral or left lobe. Intraoperative transhepatic biliary catheter insertion was performed with DD anastomosis in 55 cases and with RYHJ in 6 cases. The mean complication rate decreased from 24% to 8.1% during the period using a new biliary reconstruction technique. Five biliary complications occurred in four patients. The new technique of biliary reconstruction using intraoperative biliary catheter insertion has significantly reduced the biliary complication rate. Transhepatic biliary stenting prevents biliary complications and maintains percutaneous access when problems arise. Intraoperative transhepatic biliary catheter insertion at the back table is a safe way to provide good biliary drainage after liver transplantation.


Assuntos
Vesícula Biliar/cirurgia , Transplante de Fígado/efeitos adversos , Procedimentos de Cirurgia Plástica , Adolescente , Adulto , Criança , Pré-Escolar , Humanos , Pessoa de Meia-Idade , Complicações Pós-Operatórias/cirurgia , Estudos Retrospectivos
20.
Transplant Proc ; 38(10): 3572-5, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17175334

RESUMO

For cadaveric transplantations, histidine-tryptophan-ketoglutarate (HTK) and University of Wisconsin (UW) solutions have been shown to engender similar outcomes. In September 2004, our institution changed from UW to HTK as the primary preservation solution for liver and kidney transplantations. We reviewed records of living-donor liver transplant recipients from September 2001 to December 2005. This study compared early postoperative outcomes of liver transplantation using the 2 solutions. Perfusion was performed first via the portal vein and then via the hepatic artery until the outflow became clear. Patients were compared based on the organ preservation solution. The analysis included patient demographics, early postoperative complication rates, mortality rates, number of acute rejection episodes, costs for preservation solutions, and results of 1-, 7-, 14-, and 30- day liver function tests. Patients in both groups were managed with similar operative techniques, immunosuppressive regimens, and donor liver criteria. Statistical analyses were performed with chi- square and Mann-Whitney U tests. Donor and patient demographics were similar. No statistically significant differences were observed between the groups with regard to posttransplantation liver biochemistry, complication rates, number of acute rejection episodes, and mortality rates. The mean infused volume of preservation solution was 1000 +/- 400 mL (range, 500-2000 mL) for all patients. These volumes corresponded to a cost savings of US 148 dollars/L when using HTK solution. In conclusion, UW and HTK were equally effective and safe for perfusion of living-donor liver grafts; however, the use of HTK solution provided significant cost savings.


Assuntos
Transplante de Fígado/fisiologia , Fígado , Doadores Vivos , Soluções para Preservação de Órgãos , Adenosina , Adulto , Alopurinol , Feminino , Glucose , Glutationa , Humanos , Imunossupressores/sangue , Imunossupressores/uso terapêutico , Insulina , Hepatopatias/classificação , Hepatopatias/cirurgia , Transplante de Fígado/imunologia , Masculino , Manitol , Cloreto de Potássio , Procaína , Rafinose , Estudos Retrospectivos , Tacrolimo/sangue , Tacrolimo/uso terapêutico
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA