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Biomedical subjects

J Dionísio

Publications and source records attributed to J Dionísio.

2 recordsLinked to original sources

A simple intra-operative maneuver to decrease a duodenal ulcer hemorrhage temporarily: description and anatomical bases.

Intraoperative hemostatic suture to treat a bleeding duodenal ulcer is sometimes difficult when there is massive hemorrhage. The aims of this paper are: (1) to describe a practical and easy intraoperative procedure which quickly decreases a massively bleeding duodenal ulcer, allowing the surgeon to identify the bleeding site clearly and obtain definitive hemostasis by suturing the involved vessels with a low risk of common bile duct lesion; and (2) to study in cadavers the anatomical basis of this surgical procedure already successfully performed on patients. Fourteen patients with massive duodenal ulcer bleeding, after unsuccessful endoscopic hemostasis, were operated on and included in this study. After surgical anterior gastroduodenotomy, the surgeon introduced a finger in a downward and forward direction in the bursa omentalis vestibule through the omental foramen. This simple and quick procedure decreased hemorrhage by compressing the gastroduodenal artery against the first part of the posterior surface of the duodenum. Twenty-four fresh blocks of normal tissue were removed from cadavers and were injected with silicone rubber through the common hepatic artery. The distance between the gastroduodenal artery and the omental foramen was measured. With this maneuver the surgeon can clearly see the exact bleeding site and perform an adequate suture with a minor risk of common bile duct lesion.

Blood Loss, Surgical↗

The suturoscope. A preliminary report on the first clinical applications.

One of the authors has developed a special device--the suturoscope--which allows endoscopic sutures with conventional suture material. After several modifications, in order to improve the prototype, the authors began its clinical application in 1992. Five bladder operations were performed--two antireflux operations, two meatotomies with meatoplasty, and an intramural ureteric ligation. The results indicate that this device is suitable for clinical use.

Endoscopes↗