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  • Title: Proximal gastric vagotomy and mucosal antrectomy: effect on gastric acid secretion, plasma gastrin, and experimental ulcerogenesis in the dog.
    Author: Richter HM, Kelly KA, Go VL.
    Journal: Surgery; 1987 May; 101(5):623-31. PubMed ID: 3576453.
    Abstract:
    The aim of this study was to determine whether mucosal antrectomy, which preserves antropyloric motility, would enhance the antiulcer properties of proximal gastric vagotomy (PGV). Hydrochloric acid and gastrin secretion were studied in five dogs before and after PGV and mucosal antrectomy, while the response to the Mann-Williamson operation (an ulcer-producing operation) was evaluated in four control dogs with intact stomachs, five dogs with PGV alone, and six dogs with PGV plus mucosal antrectomy. Proximal gastric vagotomy and mucosal antrectomy decreased mean +/- SEM basal and pentagastrin-stimulated acid secretion from 4.3 +/- 1.3 to 0.4 +/- 0.3 mEq/hr and from 21 +/- 0.7 to 7.4 +/- 1.8 mEq/hr, respectively (p less than 0.05). Basal plasma gastrin was altered little by the operation (68 +/- 9.7 pg/ml before, 58 +/- 11 pg/ml after; p greater than 0.05) but the 4-hour integrated plasma gastrin response to a 200 gm meat meal decreased from 13 +/- 1.8 to 3.3 +/- 0.7 ng X min/ml (p less than 0.05). Only one of six dogs with mucosal antrectomy and PGV developed peptic ulcer after the Mann-Williamson operation, whereas four of five with PGV alone and three of four controls developed ulcers (p less than 0.05, PGV alone versus PGV and mucosal antrectomy). In conclusion, PGV and mucosal antrectomy decreased acid secretion and postcibal gastrin response and provided greater protection against peptic ulcer than PGV alone.
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