Biomedical subjects
L C D'Albuquerque
Publications and source records attributed to L C D'Albuquerque.
Liver anatomy applied to the placement of transjugular intrahepatic portosystemic shunts.
PURPOSE: To study the vascular and biliary liver anatomy and its relevance to the creation of a transjugular intrahepatic portosystemic shunt (TIPS). MATERIALS AND METHODS: Acrylic casts of 25 normal human livers (necropsy specimens) were obtained. The anatomy of the hepatic veins, portal vein, hepatic artery, and bile ducts and the relationship of structures of the portal triad were evaluated. Diameters of the vessels and distances and relative position of the structures were recorded. Special attention was given to the puncture path used for TIPS. RESULTS: One right hepatic vein (RHV) was seen in 16 cases, two RHVs in one, and an accessory RHV in six. All were posterior to the portal bifurcation. The mean distance between the RHV and the portal bifurcation was 4.4 cm. In 13 cases, the path for TIPS puncture was free of major vascular and biliary structures. In 12 cases, portal, biliary, and/or arterial structures were seen in the puncture path. CONCLUSION: TIPS puncture should be performed in the postero-inferior aspect of the right portal trunk or at the posterior aspect of the bifurcation of the portal vein. Knowledge of the vascular liver anatomy is imperative to create the TIPS safely.
[Portal thrombosis: early complication of azygo-portal disconnection in the treatment of bleeding esophageal varices].
The authors studied 30 patients with bleeding from esophageal varices due to portal hypertension. They underwent the disconnection of portal and azygos veins and splenectomy. The immediate postoperative complications were: portal thrombosis in four patients (13.3%); subphrenic abscess in two (6.6%); pulmonary embolism in one (3.3%) and esophageal perforation in one (3.3%). The manifestations of portal thrombosis were ascites, and fever (without leukocytosis). One patient with portal thrombosis who had intractable ascite was submitted to peritoneovenous shunting.
[Splenic abscess: report of 8 cases and review of the literature].
Eight patients with splenic abscess are reported. Etiological factors were sepsis, mainly due to endocarditis. Diagnosis was made by ultrasonography and computed tomography scans. Splenectomy was performed in four cases, transcutaneous drainage in three and abscess puncture in one case. Mortality was 12.5% (1/8). Since the introduction of US and CT scans early diagnosis and treatment was possible by which the mortality decreased.
[Treatment of stenosing duodenal ulcer by proximal gastric vagotomy associated with duodenoplasty. Report of 30 cases].
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[Duodenal ulcer with reduction of the duodenal diameter. Treatment exclusively by proximal gastric vagotomy--results].
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[Mesenteric venous thrombosis after azygos-portal disconnection with splenectomy for the treatment of bleeding esophageal varices in mansonian schistosomiasis. Three cases reports].
The consequence of an acute mesenteric venous thrombosis following porta-azygos disconnection for the treatment of bleeding esophageal varices due to mansonian schistosomiasis has not been well defined in the literature. The clinical manifestations reported were fever, spasmodic abdominal pain associated with food intake. We treated three patients with thrombosis of the portal-mesenteric trunk following porta-azygos disconnection and adopted a conservative clinical approach in two patients while one had to have a surgical small bowel ressection.