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Biomedical subjects

M Lazo

Publications and source records attributed to M Lazo.

16 recordsLinked to original sources
PubMed1988

A prospective, randomized study comparing highly selective vagotomy and extended highly selective vagotomy in patients with duodenal ulcer.

The recurrence rate of duodenal ulcer after highly selective vagotomy is nearly 10 percent. To diminish this percentage, extended highly selective vagotomy with sectioning the gastroepiploic nerves has been proposed in order to reduce postoperative gastric acid secretion. We have prospectively compared the decrease in gastric acid secretion through measurement of basal acid output, maximal acid output, and peak acid output in patients who underwent highly selective vagotomy or extended highly selective vagotomy. No significant differences in postoperative gastric acid secretion were found and, therefore, no changes in the probability of postoperative recurrence of duodenal ulcer were seen.

Adolescent↗
PubMed1987

A prospective study of intraoperative histologic antrum and corpus boundary in patients undergoing highly selective vagotomy for duodenal ulcer.

The results of the present study demonstrate that, at the level of the proximal branch of Crow's foot of Latarjet, parietal cells are found, and therefore, it must be sectioned when performing highly selective vagotomy. At the level of the distal branch, antral mucosa is found. At the level of the middle branch, in almost one-half of the instances, parietal cells are found, and its section must be evaluated with gastric emptying studies.

Adult↗
PubMed1985

Surgical treatment of high gastric ulcer.

The purpose of this study has been to review the late results of surgical treatment of 244 patients with endoscopically proved benign chronic gastric ulcer located 5 cm or less from the cardia. In five patients, a total gastrectomy with esophagojejunostomy was performed. Proximal gastrectomy was used in 3 patients, mesogastrectomy in 5 patients, a partial Schoemaker's procedure in 73 patients, Pauchet's procedure in 70 patients, and Csendes' procedure in 23 patients. Nonresective procedures were employed in 67 patients and included the Kelling-Madlener procedure in 23 patients, pyloroplasty alone in 10 patients, gastrojejunostomy alone in 4 patients, local or wedge excision of the ulcer in 9 patients, and vagotomy and pyloroplasty in 21 patients. The follow-up evaluation was performed in 91 percent of the patients (mean 9 years postoperatively, range 5 to 15 years), with emptying endoscopy in all nonresected patients. A high mortality was observed after total or proximal gastrectomy, as well as after nonresective procedures. After the other resective techniques, low postoperative morbidity and mortality were observed. No recurrent ulcer was seen after the resective procedures. Based on these results, we propose that when the ulcer is located 5 cm below the cardia, Schoemaker's or Pauchet's procedure should be performed; if the ulcer is located 2 cm or less from the cardia, Csendes' procedure or the Kelling-Madlener procedure should be employed.

Adult↗
PubMed1978

A surgical technic for high (cardial or juxtacardial) benign chronic gastric ulcer.

A surgical technic for cardial or juxtacardial ulcers is presented. The surgical principle consists of resection of the distal stomach including the ulcer in a way that the esophageal mucosa remains intact. Reconstruction of the transit is accomplished by a Roux-en-Y esophagogastrojejunostomy in one layer. A variable portion of gastric reservoir is preserved, and alkaline reflux is highly improbable due to the long intestinal loop. This technic has been performed in six patients with excellent postoperative results. Clinical and radiologic follow-up to three years has shown no esophagitis or strictures of afferent loop syndrome.

Cardia↗