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Prevalence of Helicobacter pylori Infection in Bariatric Surgery Patients
David Baillargeon1, Matthew Greenblatt1, Marianne Côté1,2
1Institut Universitaire de Cardiologie Et de Pneumologie de Québec - Université Laval, 2725 Chemin Sainte-Foy, Québec, Québec, G1V 4G5, Canada.
Objective:
To determine the rate of histology-proven Helicobacter pylori (HP) infection in patients undergoing bariatric surgery and to identify risk factors for HP infection.
Methods:
In a retrospective analysis, patients who underwent bariatric surgery with gastric resection in a single hospital between January 2004 and January 2019 were analyzed. For each patient, a surgical specimen was submitted for anatomopathological examination and analyzed for gastritis or other anomalies. When gastritis was present, HP infection was confirmed by the identification of curvilinear bacilli in conventional histology or by specific immunohistochemical detection of HP antigen.
Results:
A total of 6388 specimens were available for review (4365 women, 2023 men) with a mean age of 44.9 ± 11.2 years and a mean body mass index (BMI) of 49.3 ± 8.2 kg/m2. Histology-proven HP infection rate was 6.3% (n = 405). There was no significant difference in sex, BMI, and body weight between HP + and HP - patients. Logistic regressions identified age as a risk factor for HP infection in this population (OR 1.02, p < 0.0001, CI 95% 1.01-1.03 for every 1-year increase, OR 1.26, p < 0.0001, CI 95% 1.14-1.40 for every 10-year increase).
Conclusions:
The rate of histology-proven HP infection is low in patients with severe obesity who present for bariatric surgery and is associated with age.
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