Effects of preoperative fractionated irradiation on left colonic anastomoses in the rat
| Autor: | Taner I Kale, Fadil Akyol, Cüneyt Köksoy, Mehmet A. Kuzu, Ediz Demirpençe, Uzal D |
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| Rok vydání: | 1998 |
| Předmět: |
Male
medicine.medical_specialty Colon Colorectal cancer medicine.medical_treatment Constriction Pathologic Anastomosis Radiation Dosage Surgical anastomosis Hydroxyproline chemistry.chemical_compound Postoperative Complications Weight loss Tensile Strength Surgical Wound Dehiscence medicine Animals Surgical Wound Infection Rats Wistar Wound Healing business.industry Anastomosis Surgical Gastroenterology General Medicine medicine.disease Colorectal surgery Rats Surgery Radiation therapy chemistry Dose Fractionation Radiation medicine.symptom Complication business Intestinal Obstruction |
| Zdroj: | Diseases of the Colon & Rectum. 41:370-376 |
| ISSN: | 0012-3706 |
| DOI: | 10.1007/bf02237494 |
| Popis: | PURPOSE: Radiotherapy is frequently used as a (neo)adjuvant to surgery in colorectal cancer patients, and because such therapy could influence the integrity of the anastomosis, we decided to investigate the effect of preoperative irradiation on colonic anastomosis. METHODS: Seventy-two male Wistar rats, weighing 200 to 348 g, were divided into three groups: a control group (I) underwent left colon resection and primary anastomosis (n=20); a sham irradiated group (II, n=20); a study group (III) that received fractionated irradiation to the whole pelvis (anterior-posterior pelvic field), for a total dose of 22 Gy, 5.5 Gy per fraction, on four consecutive days with linear accelerator (n=32). Four days after irradiation, both Groups II and III underwent the same operation as performed in Group I. Within each group, one-half of the animals were anesthetized on the third postoperative day and one-half on the seventh postoperative day. Abdominal wound-healing, anastomotic complications, and anastomotic bursting pressure measurements were recorded. Following these measurements, the anastomotic segment was resected for hydroxyproline content and myeloperoxidase activity. RESULTS: Irradiated animals had more pronounced weight loss during therapy. There were no differences with abdominal wound-healing, intraperitoneal adhesions, and anastomotic complications between groups. At days 3 and 7, mean bursting pressures of the anastomosis were determined at 36.5 and 208 mmHg in Group I, 34.5 and 228 mmHg in Group II, and 25 and 150 mmHg in Group III, respectively (P |
| Databáze: | OpenAIRE |
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