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Biomedical subjects

T R Schrock

Publications and source records attributed to T R Schrock.

9 recordsLinked to original sources

The efficacy and limitations of percutaneous endoscopic gastrostomy.

We analyzed 64 percutaneous endoscopic gastrostomy procedures performed by us between 1986 and 1990. Thirty patients had neurologic disease; 16 had head and neck cancers; eight had other malignancies; two had acquired immunodeficiency syndrome; and eight had other problems. Seven patients died within 30 days of complications (n = 4) or the primary illness (n = 3). Mean follow-up was 6 months; an additional patient died of aspiration and eight others died of their underlying illness. There were 19 complications (32%). Four wound complications occurred. Nine patients developed aspiration pneumonia within 3 days of the procedure, four of whom died in the hospital. Of the 24 patients with a history of aspiration, nine experienced aspiration during or after percutaneous endoscopic gastrostomy. Patients with a history of aspiration were more likely to have perioperative aspiration pneumonia, and patients who experienced aspiration were more likely to die.

Adult

Complications of continent ileostomy.

Immediate postoperative complications occurred in 15 per cent of 39 patients undergoing continent ileostomy, and late complications developed in 46 per cent of these patients. Age over 40 years, obesity, and Crohn's disease were related to the morbidity rate, but corticosteroid therapy was not a factor. Results of primary operations were superior to those of secondary continent ileostomies. With careful selection of patients and attention to technical detail, success in 90 per cent of initial continent ileostomy operations is a realistic goal.

Adolescent

Total gastrectomy.

Total gastrectomy is indicated principally for Zollinger-Ellison syndrome and for potentially curable gastric cancer. The diagnosis of cancer should be verified by biopsy before the resection is performed, and the margins of resection should usually be examined by frozen section. Of the various reconstructions, Roux-en-Y esophagojejunostomy gave the best long-term results.

Adult

Radiologic evaluation of the continent (Kock) ileostomy.

The continent ileostomy is a solution to the persistent difficulties of leakage, odor, and skin irritation produced by the conventional permanent ileostomy in patients who have had proctocolectomy. Patients with continent ileostomy do not use ileostomy appliances, have complete fecal continence, and need empty the ileal reservoir only 2 to 4 times a day. Radiographic examination is often of great value in assessing patients with continent ileostomy. Radiographic features of the normal continent ileostomy and complications of continent ileostomy are discussed with regard to plain film and contrast examinations.

Humans

Surgical management of radiation injury of the small and large intestine.

The following principles should be observed during operations for radiation injuries of the small and large intestine: 1) The objective of operation is modest: to relieve symptoms. 2) Only healthy bowel, which was outside the radiation field, should be anastomosed. 3) Isolated small intestinal injuries should be resected or bypassed, and extensive dissection should be avoided. 4) Colorectal injuries should be treated by diverting descending colostomy, with or without resection of the diseased bowel.

Adult