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2.
Reg Anesth Pain Med ; 25(4): 424-7, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-10925943

RESUMO

BACKGROUND AND OBJECTIVES: Dorsal penile nerve block is a common procedure and can provide effective analgesia after penile surgery. Ischemic complications are rare and generally result from trauma or inadvertent administration of vasoconstrictive solutions. CASE REPORT: We describe a period of temporary ischemia of the glans penis occurring 40 minutes after dorsal penile nerve block with 0.75% ropivacaine. This was successfully treated with an intravenous infusion of iloprost (a PGI2 analogue), and at 43 hours appearances were normal. CONCLUSION: Theoretical concerns over the vasoconstrictive properties of ropivacaine may be sufficient to avoid its use where the potential for ischemia to end organs is present.


Assuntos
Amidas/efeitos adversos , Anestésicos Locais/efeitos adversos , Circuncisão Masculina/efeitos adversos , Bloqueio Nervoso/efeitos adversos , Pênis , Adolescente , Humanos , Isquemia/etiologia , Masculino , Pênis/irrigação sanguínea , Fluxo Sanguíneo Regional , Ropivacaina
3.
Br J Cancer ; 79(9-10): 1522-30, 1999 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-10188901

RESUMO

Controversy still exists on the optimal surgical resection for potentially curable gastric cancer. Much better long-term survival has been reported in retrospective/non-randomized studies with D2 resections that involve a radical extended regional lymphadenectomy than with the standard D1 resections. In this paper we report the long-term survival of patients entered into a randomized study, with follow-up to death or 3 years in 96% of patients and a median follow-up of 6.5 years. In this prospective trial D1 resection (removal of regional perigastric nodes) was compared with D2 resection (extended lymphadenectomy to include level 1 and 2 regional nodes). Central randomization followed a staging laparotomy. Out of 737 patients with histologically proven gastric adenocarcinoma registered, 337 patients were ineligible by staging laparotomy because of advanced disease and 400 were randomized. The 5-year survival rates were 35% for D1 resection and 33% for D2 resection (difference -2%, 95% CI = -12%-8%). There was no difference in the overall 5-year survival between the two arms (HR = 1.10, 95% CI 0.87-1.39, where HR > 1 implies a survival benefit to D1 surgery). Survival based on death from gastric cancer as the event was similar in the D1 and D2 groups (HR = 1.05, 95% CI 0.79-1.39) as was recurrence-free survival (HR = 1.03, 95% CI 0.82-1.29). In a multivariate analysis, clinical stages II and III, old age, male sex and removal of spleen and pancreas were independently associated with poor survival. These findings indicate that the classical Japanese D2 resection offers no survival advantage over D1 surgery. However, the possibility that D2 resection without pancreatico-splenectomy may be better than standard D1 resection cannot be dismissed by the results of this trial.


Assuntos
Adenocarcinoma/mortalidade , Adenocarcinoma/cirurgia , Excisão de Linfonodo/mortalidade , Pancreatectomia/mortalidade , Esplenectomia/mortalidade , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/cirurgia , Sobreviventes , Adenocarcinoma/patologia , Adulto , Idoso , Análise de Variância , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Neoplasias Gástricas/patologia , Taxa de Sobrevida
4.
Lancet ; 347(9007): 995-9, 1996 Apr 13.
Artigo em Inglês | MEDLINE | ID: mdl-8606613

RESUMO

BACKGROUND: In Japan the surgical approach to treatment of potentially curable gastric cancer, including extended lymphadenectomy, seems in retrospective surveys to give better results than the less radical procedures favoured in Western countries. There has, however, been no evidence from randomised trials that extended lymphadenectomy (D2 gastric resection) confers a survival advantage. This question was addressed in a trial involving thirty-two surgeons in Europe. METHODS: In a prospective randomised controlled trial, D1 resection (level 1 lymphadenectomy) was compared with D2 resection (levels 1 and 2 lymphadenectomy). Central randomisation (200 patients in each arm) followed a staging laparotomy. FINDINGS: The D2 group had greater postoperative hospital mortality (13% vs 6.5%; p=0.04 [95% Cl 9-18% for D2, 4-11% for D1] and higher overall postoperative morbidity (46% vs 28%; p<0.001); their postoperative stay was also longer. The excess postoperative morbidity and mortality in the D2 group was accounted for by distal pancreaticosplenectomy and splenectomy. In the whole group (400 patients), survival beyond three years was 30% in patients whose gastrectomy included en-bloc pancreatico-splenic resection versus 50% in the remainder. INTERPRETATION: D2 gastric resections are followed by higher morbidity and mortality than D1 resections. These disadvantages are consequent upon additional pancreatectomies and distal splenectomies, and in long-term follow-up the higher mortality when the pancreas and spleen are resected may prove to nullify any survival benefit from D2 procedures.


Assuntos
Adenocarcinoma/cirurgia , Gastrectomia/métodos , Excisão de Linfonodo/métodos , Neoplasias Gástricas/cirurgia , Adenocarcinoma/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Mortalidade Hospitalar , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Pancreatectomia/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/mortalidade , Esplenectomia/efeitos adversos , Neoplasias Gástricas/mortalidade , Taxa de Sobrevida , Reino Unido/epidemiologia
5.
Surg Endosc ; 9(5): 483-9, 1995 May.
Artigo em Inglês | MEDLINE | ID: mdl-7676367

RESUMO

A high-efficiency hepatic cryosurgical unit has been developed and evaluated. It is capable of simultaneously driving three implantable insulated cryoneedle probes. The system has been used to treat 18 patients with secondary and 4 patients with primary liver cancer: open (n = 12), total laparoscopic (n = 6), laparoscopic assisted (n = 4). In three patient laparoscopic cryotherapy was repeated inside 6 months. Intraoperative bleeding was encountered in three patients undergoing high-volume hepatic freezing but the bleeding was easily controlled. A fall in the core body temperature was encountered in 10 out of 22 patients and averaged 0.4 degree C. There was one postoperative death from liver failure in an 80-year-old patient in whom a large hepatoma was frozen. The most consistent postoperative biochemical change was hyperbilirubinaemia (n = 3). A right-sided pleural effusion developed in two patients after freezing of lesions on the superior surface of the right lobe. A survival benefit was encountered in three patients, one with central cholangiocarcinoma and the other two with large solitary secondary deposits (melanoma, colon cancer). Seven patients with multiple metastases and two patients with large hepatomas developed recurrence at the frozen site or elsewhere in the liver inside 12 months of follow-up and no clinical benefit could be demonstrated by cryotherapy in this group. In nine patients, the follow-up has been too short (< 18 months) to permit any conclusion on outcome. The current limitations of hepatic cryotherapy are largely due to incomplete tumor destruction.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Criocirurgia/instrumentação , Laparoscópios , Neoplasias Hepáticas/cirurgia , Fígado/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Criocirurgia/métodos , Estudos de Avaliação como Assunto , Feminino , Humanos , Laparoscopia/métodos , Neoplasias Hepáticas/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Agulhas , Complicações Pós-Operatórias , Resultado do Tratamento , Ultrassonografia
6.
J R Coll Surg Edinb ; 39(1): 44-7, 1994 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-7515430

RESUMO

The technique of bilateral total splanchnicectomy performed through a posterior thoracoscopic approach is described. The advantages of this route include excellent visual exposure of the neural anatomy of the sympathetic and avoidance of single lung anaesthesia. The procedure was performed for the relief of intractable pain in patients with advanced pancreatic cancer (n = 3) and patients suffering from chronic pancreatitis (n = 5). Persistent relief of pain until death was obtained in the patients with pancreatic cancer (2, 4, 6 months). In patients with chronic pancreatitis, the benefit to date has varied with the severity of the disease. In two patients with severe advanced disease and previous percutaneous blocks, the relief of pain lasted only 3 and 5 weeks and both patients required resection for renewed intractable pain. In three patients with minimal change disease, relief of pain has been good in the short term (maximum follow-up of 8 months). Bilateral thoracoscopic total splanchnicectomy merits further evaluation in patients with pancreatic pain. No complications including hypotension have been encountered.


Assuntos
Denervação/instrumentação , Dor Intratável/cirurgia , Pancreatopatias/complicações , Nervos Esplâncnicos/cirurgia , Toracoscópios , Humanos , Dor Intratável/etiologia , Pâncreas/inervação , Nervos Esplâncnicos/patologia , Instrumentos Cirúrgicos
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