Browsing by Issue Date, starting with "1996"
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- Gastric ascariasis: a rare cause of upper gastrointestinal bleedingPublication . Pontes, JM; Leitão, M; Portela, F; Andrade, P; Lopes, H; Vasconcelos, H; Romão, Z; Pimenta, J; Donato, A; Freitas, D
- Pulmonary function after laparoscopic cholecystectomy in the elderlyPublication . Milheiro, A; Castro e Sousa, F; Oliveira, L; Matos, MJThe results of laparoscopic cholecystectomy in a group of 52 patients older than 69 years (group 1) were compared with the results of the same operation in a group of 338 younger patients (group 2). In group 1, 23 per cent of patients had acute cholecystitis and 13 per cent were operated on after an episode of acute pancreatitis. In group 2, 8 per cent of patients had acute cholecystitis and 4 per cent were operated on after acute pancreatitis. Pulmonary function was assessed prospectively before operation, 24 h after surgery and on the seventh day after operation, in 20 patients in group 1 and 30 in group 2. In group 1 there was one death (2 per cent); the morbidity rate was 14 per cent and conversion to laparotomy was required in 15 per cent. In group 2 there were no deaths, the morbidity rate was 11 per cent and the conversion rate 4 per cent. No significant differences were found between the two groups in mortality and morbidity rates. Preoperative values of forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1) were significantly lower in group 1 than in group 2 (P < 0.05); the values of FVC, FEV1 and forced expiratory flow at 50 per cent 24 h after surgery were less depressed in group 1 (P < 0.01) and also recovered more quickly in these patients 7 days after operation. Laparoscopic cholecystectomy gives excellent results in geriatric patients and can be recommended as the treatment of choice for symptomatic cholelithiasis in the elderly.
- Xhaneiopeaiieia e a oenei me meta tatiko kapkino toy ma toyPublication . Oliveira, CF; Abraúl, E; Albano, J; Amaral, N; Gervásio, H; Gordilho, J
- Síndrome de Sweet: Afecção cutânea benigna ou sistémica grave?Publication . Leitão, J; Reis, C; Malcata, AB; Carvalho, A; Feio, M; Perdigoto, R; Nascimento-Costa, JM; Silva, J; Moura, JA; Porto, A
- Mesenteric arteriovenous fistula causing portal hypertension and bleeding duodenal varicesPublication . Baranda, J; Pontes, JM; Portela, F; Silveira, L; Amaro, P; Ministro, P; Rosa, A; Pimenta, I; Andrade, P; Bernardes, A; Pereira, J; Leitão, M; Donato, A; Freitas, DWe report a case of portal hypertension associated with a non-traumatic arteriovenous fistula, presenting with bleeding duodenal varices. The patient was admitted for melaena. Emergency endoscopy showed oesophageal varices with no signs of recent bleeding and with no blood in the upper gastrointestinal tract. Arteriography of the coeliac axis and superior mesenteric artery failed to detect any bleeding source. Endoscopy was repeated because of persistent bleeding and revealed active bleeding from varices in the distal duodenum. The patient underwent surgery and a large paraduodenal varicose vein associated with an arteriovenous fistula was found. Resection of the paramural varix and surgical occlusion of the arteriovenous fistula were effective in the control of bleeding. Liver biopsy revealed mild portal fibrosis without cirrhosis. Three years after surgery the patient still has oesophageal varices but has not had recurrent bleeding. There was regression of intraduodenal varices.
- An unusual endoscopic procedure to remove a toothbrush from the stomachPublication . Bastos, I; Gomes, D; Cotrim, I; Gouveia, H; Donato, A; Freitas, D
- Hypersensitivity to thimerosal: the sensitizing moietyPublication . Gonçalo, Margarida; Figueiredo, A; Gonçalo, SThere has been increasing interest in characterizing the sensitizing moiety of thimerosal [TIM], following the finding that patients with photosensitivity to piroxicam are allergic to the thiosalicylic acid [TIO] moiety of TIM. For this purpose, the authors have conducted 2 studies in TIM-sensitive patients. In the 1st, of 175 patients tested with TIO and ammoniated mercuric chloride [HGAM], 45.7% reacted only to TIM, whereas 45.7% reacted also to TIO and 17.7% also to HGAM; 9.1% reacted to both TIO and HGAM. In the 2nd, of 47 patients tested with TIO and ethylmercuric chloride [ETHG], 87.2% reacted to ETHG, 44.7% to TIO and 31.9% reacted to both. None of the patients reacted only to TIM. The authors conclude that thimerosal allergy is due either to the mercuric moiety or to thiosalicylic acid, with no cases of sensitivity only to the whole molecule of TIM. TIM-sensitive patients are mainly allergic to the mercuric moiety, but among them there are a large number of TIO-sensitive patients, and these should be advised to avoid piroxicam.
- Technetium-99m tetrofosmin rest/stress myocardial SPET with a same-day 2-hour protocol: comparison with coronary angiography. A Spanish-Portuguese multicentre clinical trialPublication . Montz, R; Perez-Castejón, MJ; Jurado, JA; Martín-Comín, J; Esplugues, E; Salgado, L; Ventosa, A; Cantinho, G; Sá, EP; Fonseca, AT; Pedroso de Lima, JTechnetium-99m tetrofosmin (Myoview) has unique properties for myocardial perfusion imaging very early after injection of the tracer. We used a very short same-day rest/stress protocol, to be performed within 2 h and evaluated its diagnostic accuracy. The study included 144 patients from seven Spanish and four Portuguese centres with a diagnosis of uncomplicated coronary artery disease (CAD); 78 patients (54%) had no history of prior myocardial infarction. Patients were injected with /=50%) was achieved with a sensitivity of 64% for the left anterior descending artery, 49% for the left circumflex artery and 86% for the right coronary artery, and an accuracy of 71%, 72% and 73% respectively. Concordance of SPET and CA was 62% for single-vessel disease and 68% for multivessel disease. In conclusion, this Spanish-Portuguese multicentre clinical trial confirmed, in a considerable number of patients who underwent coronary angiography, the feasibility of 99mTc tetrofosmin (Myoview) rest/stress myocardial SPET using a very short protocol (2 h).
- Diabetes Mellitus após transplante renalPublication . Ruas, L; Bastos, M; Alves, R; Rodrigues, D; Barros, L; Mota, A; Carvalheiro, M; Ruas, A; Furtado, AL
- Papular-purpuric "gloves and socks" syndromePublication . Martins, C; Gonçalo, Margarida; Mariano, A; Poiares-Baptista, A