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Updated: Aug 25, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
[Levels of N-nitrosamine in gastric juice of patients after surgery for ulcers]
Z Kopański1, A Cienciała, M Wasilewska-Radwańska
1Klinicznego Oddziału Chirurgii Ogólnej, Szpitala Wojskowego w Krakowie.
Abstract:
The concentration of N-nitrosamines was determined in the gastric juice of 170 patients between 6 months and 33 years after operation for ulcer disease, including 38 patients after resection with the Rydygier method (BI-R), 36 after Billroth II method (BII), 35 after truncal vagotomy with pyloroplasty (VP), 41 after highly selective vagotomy (WWW) and 20 after gastroenterostomy (ZZJ). The concentration of N-nitrosamines in the gastric juice was estimated chromatographically. It was confirmed that their concentration in the stomach was the highest after ZZJ and BII resection, lowest after WWW.
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