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2.
Radiol Case Rep ; 19(2): 691-694, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38074431

RESUMO

Biliary complications after orthotopic liver transplant (OLT) remain one of the primary causes of morbidity and mortality in liver transplant recipients with an approximate incidence between 5% and 32%. Given the limited supply of hepatic grafts, one of the most feared outcomes as a result of biliary complications is acute and or chronic graft failure. Biliary complications include leaks, biliary stasis, and stone formation, sphincter of Oddi dysfunction, recurrence of biliary disease (primary sclerosing cholangitis and primary biliary cirrhosis), and biliary strictures/obstruction. Overwhelmingly, the most common complication in hepatic transplantation is biliary stricture formation accounting for more than 50%. Currently, the mainstay of therapy as it pertains to biliary strictures/obstruction includes endoscopic retrograde cholangiography-guided therapy, percutaneous transhepatic cholangiography-guided therapy, or surgical revision/retransplantation. We present a case of biliary obstruction in a patient with a second liver transplant complicated by Cocoon Syndrome managed via sharp recanalization of CBD occlusion and placement of an endoscopic biliary Viabil stent.

5.
Am J Nephrol ; 37(3): 249-54, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23485619

RESUMO

BACKGROUND: Kidney biopsy is a vital tool in the diagnosis of kidney disease. Although it has become a routine procedure, it is not complication-free. Some serious complications of percutaneous kidney biopsy include retroperitoneal hemorrhage and death. There is an increased belief that smaller biopsy needle size results in a lower complication rate. As renal pathologists, we witness an increased number of kidney biopsies performed with a small needle size (as low as gauge 22), which results in inadequate tissue sampling and often non-diagnostic biopsy results. Herein we report the diagnostic value of kidney biopsies according to the size of the biopsy needles. METHODS: We performed kidney biopsies from nephrectomy specimens using biopsy needles of different sizes. Morphologic parameters were analyzed. RESULTS: We found that biopsies performed by small needles (gauges 20 and 22) contain significantly lower numbers of glomeruli and blood vessels, which limits pathologic evaluation. Data from our institution do not show differences in kidney biopsy complication rates between 16- and 18-gauge needles. CONCLUSIONS: Our data indicate that small biopsy needles do not provide sufficient material for diagnosis, and they increase the likelihood for a repeat biopsy.


Assuntos
Biópsia por Agulha/instrumentação , Córtex Renal/patologia , Nefropatias/patologia , Adulto , Idoso , Biópsia por Agulha/efeitos adversos , Biópsia por Agulha/normas , Feminino , Humanos , Glomérulos Renais/patologia , Masculino , Pessoa de Meia-Idade , Agulhas/normas
7.
HPB (Oxford) ; 11(5): 398-404, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19768144

RESUMO

BACKGROUND: The optimal role of surgery in the management of hepatocellular carcinoma (HCC) is in continuous evolution. OBJECTIVE: The objective of this study was to analyse survival rates after liver resection (LR) and orthotopic liver transplantation (OLT) for HCC within and outwith Milan criteria in an intention-to-treat analysis. METHODS: During 1997-2007, 179 patients with cirrhosis and HCC either underwent LR (n= 60) or were listed for OLT (n= 119). Patients with incidental HCC after OLT, preoperative macrovascular invasion before LR, non-cirrhosis and Child-Pugh class C cirrhosis prior to OLT were eliminated, leaving 51 patients primarily treated with LR and 106 patients listed for primary OLT (84 of whom were transplanted) to be included in this analysis. A total of 66 patients fell outwith Milan criteria (26 LR, 40 OLT) and 91 continued to meet Milan criteria (25 LR, 66 OLT). RESULTS: The median length of follow-up was 26 months. The mean waiting time for OLT was 7 months. During that time, 21 patients were removed from the waiting list as a result of tumour progression. Probabilities of dropout were 2% and 13% at 6 and 12 months, respectively, for patients within Milan criteria, and 34% and 57% at 6 and 12 months, respectively, for patients outwith Milan criteria (P < 0.01). Tumour size >3 cm was found to be the independent factor associated with dropout (hazard ratio [HR] 6.0). Postoperative survival was slightly higher after OLT, but this was not statistically significant (64% for OLT vs. 57% for LR). Overall survival from time of listing for OLT or LR did not differ between the two groups (P= 0.9); for patients within Milan criteria, 1- and 4-year survival rates after LR were 88% and 61%, respectively, compared with 92% and 62%, respectively, after OLT (P= 0.54). For patients outwith Milan criteria, 1- and 4-year survival rates after LR were 69% and 54%, respectively, compared with 65% and 40%, respectively, after OLT (P= 0.42). Tumour size >3 cm was again found to be an independent factor for poor outcome (HR 2.4) in the intention-to-treat analysis. CONCLUSIONS: Survival rates for patients with HCC are similar in LR and OLT. Liver resection can potentially decrease the dropout rate and serve as a bridge for future salvage LT, particularly in patients with tumours >3 cm.

8.
Ann Surg Oncol ; 15(5): 1383-91, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18320284

RESUMO

BACKGROUND: There is no clear consensus regarding the best treatment strategy for patients with advanced hepatocellular carcinoma (HCC). METHODS: Patients with cirrhosis and HCC beyond Milan who had undergone liver resection (LR) or primary orthotopic liver transplantation (OLT) between November 1995 and December 2005 were included in this study. Pathological tumor staging was based on the American Liver Tumor Study Group modified Tumor-Node-Metastasis classification. RESULTS: A total of 23 HCC patients were primarily treated by means of LR, 5 of whom eventually underwent salvage OLT. An additional 32 patients underwent primary OLT. The overall actuarial survival rates at 3 and 5 years were 35% after LR, and 69% and 60%, respectively, after primary OLT. Recurrence-free survival at 5 years was significantly higher after OLT (65%) than after LR (26%). Of the patients who underwent LR, 11 (48%) experienced HCC recurrence only in the liver; 6 of these 11 presented with advanced HCC recurrence, poor medical status, or short disease-free intervals and were not considered for transplantation. Salvage OLT was performed in 5 patients with early stage recurrence (45% of patients with hepatic recurrence after LR and 22% of all patients who underwent LR). At a median of 18 months after salvage OLT, all 5 patients are alive, 4 are free of disease, and 1 developed HCC recurrence 16 months after salvage OLT. CONCLUSION: For patients with HCC beyond Milan criteria, multimodality treatment-including LR, salvage OLT, and primary OLT-results in long-term survival in half of the patients. When indicated, LR can optimize the use of scarce donor organs by leaving OLT as a reserve option for early stage HCC recurrence.


Assuntos
Carcinoma Hepatocelular/cirurgia , Hepatectomia , Cirrose Hepática/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Recidiva Local de Neoplasia/cirurgia , Terapia de Salvação/métodos , Carcinoma Hepatocelular/secundário , Estudos de Coortes , Intervalo Livre de Doença , Feminino , Humanos , Cirrose Hepática/patologia , Neoplasias Hepáticas/patologia , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento
9.
Cardiol Rev ; 16(2): 59-68, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18281907

RESUMO

Mesenteric vascular disease has been diagnosed increasingly over the past 25 years. This rise in incidence has been attributed to the advanced mean age of the population, an increasing number of critically ill patients and a greater clinical recognition of the condition. Although surgical revascularization and resection has long been the standard of treatment, medical management can also play an important adjunctive role. Early diagnosis before irreversible bowel damage, which may occur within 6-8 hours after the insult, is necessary to improve survival and reduce morbidity. Even in the presence of irreversible bowel ischemia, perioperative medical treatment may reduce disease progression, enabling more limited bowel resection. This article outlines the appropriate pharmacologic management of ischemic disorders of the intestine, with an emphasis on the pharmacologic treatments presently being used in clinical practice and those being studied in the laboratory.


Assuntos
Oclusão Vascular Mesentérica/tratamento farmacológico , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Anticoagulantes/uso terapêutico , Colo/irrigação sanguínea , Embolia/complicações , Embolia/tratamento farmacológico , Sequestradores de Radicais Livres/uso terapêutico , Humanos , Isquemia/tratamento farmacológico , Isquemia/etiologia , Mesentério/irrigação sanguínea , Inibidores de Proteases/uso terapêutico , Terapia Trombolítica , Trombose/complicações , Trombose/tratamento farmacológico , Vasodilatadores/uso terapêutico , Trombose Venosa/tratamento farmacológico , Trombose Venosa/etiologia
12.
Arch Surg ; 137(1): 55-9, 2002 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11772216

RESUMO

Pancreatic and biliary fistulas and delayed gastric emptying are the most common complications after pancreatoduodenectomy. The development and bleeding of visceral arterial pseudoaneurysms are rare phenomena and pose diagnostic and treatment dilemmas. We describe 5 recent patients who developed bleeding from visceral artery pseudoaneurysms after pancreatoduodenectomy. These patients all had "herald" bleeding from their abdominal drains. Subsequent angiography and therapeutic embolizations were successfully performed.


Assuntos
Falso Aneurisma/etiologia , Artéria Hepática , Pancreaticoduodenectomia , Hemorragia Pós-Operatória/etiologia , Idoso , Falso Aneurisma/complicações , Falso Aneurisma/diagnóstico por imagem , Falso Aneurisma/terapia , Embolização Terapêutica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia
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