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  • Title: The effect of betazole on serum group I pepsinogen levels: studies in symptomatic patients with and without recurrent ulcer after vagotomy and gastric resection or drainage.
    Author: Samloff IM, Secrist DM, Passaro E.
    Journal: Gastroenterology; 1976 Jun; 70(6):1007-13. PubMed ID: 1269860.
    Abstract:
    Serum group I pepsinogen (PG I) levels have been determined before and at intervals after the administration of betazole hydrochloride (Histalog) in 50 symptomatic postoperative patients, 20 with and 30 without recurrent ulcer, after either a vagotomy and gastric resection or a drainage procedure. In patients with recurrent ulcer, mean serum PG I levels increased after betazole and reached a maximum of 116.5 +/- 2.2% (SE) of basal at 2 hr; range 98.9 to 135.7%. In contrast, mean serum PG I levels decreased in patients without recurrent ulcer and reached a nadir of 75.0 +/- 4.3% of basal at 2 hr; range 46.9 to 142.4%. All 20 patients with recurrent ulcer and 5 patients without recurrence had a 2-hr serum PG I level of more than 98% of basal, while each of the remaining 25 patients without recurrent ulcer had a 2-hr level of less than 92% of basal. A 2-hr serum PG I level of more than 98% of basal was also correlated with a vagotomy and drainage, a peak acid output of more than 11 mEq per hr, and a positive insulin test, while a level of less than 92% of basal was correlated with a vagotomy and gastric resection, a peak acid output of less than 11 mEq per hr, and a negative insulin test. In addition, basal serum PG I and serum gastrin levels were significantly higher (P less than 0.001) in patients with the former type of PG I response than in those with the latter type of response. The cause of each type of response is not certain, but the data suggest that one of the determinants may be the completeness of vagotomy.
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