Biomedical subjects
Publications and source records attributed to M Visentin.
Two cases of accidental subdural catheterisation, occurred in cancer patients during pain treatment, are presented and radiographically confirmed. The possible mechanisms that can cause such malposition, the X-ray picture and the effect of subdurally injected morphine are discussed.
One hundred eleven patients underwent a surgical procedure for correction of intractable gastroesophageal reflux. Twenty children were severely mentally retarded. The range of follow up was 6 months to 15 years. Upper gastro-intestinal series was realised at tenth post-operative day for 111 children, then during the first year for 97 children, between the first and fifth year for 62 children and after the fifth year for 25 children. The first upper gastro-intestinal control (at tenth day) was normal for 111 patients. Next controls revealed, usually during the first post-operative year, an esophago-gastric junction anomaly for 49 patients (44%). Most of them are light (41/111 = 37%): occasional reflux (9 children; more frequent without pyloroplasty) of little paraesophageal hernia (32 children; more frequent with closure of esophageal hiatus by two suture lines, with esophageal fixation on median arcuatum ligament or without esophageal fixation on esophageal hiatus); these light anomalies are symptom free and sometimes transitories. Rarely, anomalies are important (8/111 = 7%): big paraesophageal hernia of recurrence (more frequent with partial posterior fundoplication and in children severely mentally retarded); five patients were symptomatic and had to be reoperated. Also now, we don't use partial posterior fundoplication and in mentally retarded children we prefer a Collis procedure.
110 arteriovenous fistulas made for hemodialysis, chemotherapy and extended parenteral nutrition are studied. For authors, the side-end radial arteriovenous fistula is the main used, followed by the humero-basilic shunt. The immediately functional fistula's percentage was of 81% with a net progress in the last year since it is now at 92%. Thrombosis prevails in early complications. 32% of delayed complications are minutely studied. They include thrombosis, infections, trophic disturbance of hands, secondary stenosis, hyper-flow with cardiac consequences. Others more unusual delayed complications are described ("Stealing" syndrome, no venous distention, bleeding, pseudo-aneurysm). The authors advice the side-end arteriovenous fistula for hemodialysis and humero-basilic shunt with immediately basilic superficialization for infant's hemodialysis, for chemotherapy and parenteral nutrition.
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The authors review the cases of 81 patients complaining of pain due to lung cancer referred to a Pain Clinic. The cause and characteristics of pain together with treatments and results were assessed. The time elapsed from beginning of pain complaints to diagnosis, referral to the Pain Clinic and death was calculated. The data collected are discussed keeping in mind the aim of providing these patients a better quality of life.