Mohamed Amine Elghali1, Amine Gouader1, Rym Bouriga2, Mohamed Mahjoub3, Mohamed Salah Jarrar1, Sonia Ziadi4, Moncef Mokni4, Fahmi Hamila1, Rached Ltaeif1. 1. Department of Digestive Surgery, Farhat Hached University Hospital, Sousse, Tunisia. 2. Department of Medical Oncology, Farhat Hached University Hospital, Sousse, Tunisia. 3. Department of Epidemiology and Hospital Hygiene, Farhat Hached University Hospital, Sousse, Tunisia. 4. Department of Pathology, Farhat Hached University Hospital, Sousse, Tunisia.
Abstract
INTRODUCTION: In developed countries, authors have reported variations over time in the seat and histological type of gastric adenocarcinomas, which were explained by Helicobacter pylori infection (HPI) incidence changes. In North-African countries and the Arabic world, epidemiological changes in gastric adenocarcinomas are still unknown. Our study aims to explore and to describe those changes in central Tunisia. MATERIALS AND METHODS: This is a retrospective observational and descriptive study including 876 cases based on the National Central Tunisian Register of Cancers over a period of 21 years. Two groups were formed and compared (group A: 337 patients from 1995 to 2005; group B: 539 patients from 2006 to 2015). RESULTS: HPI decreased from 32.6% in group A to 11.2% in group B (p < 0.05). Signet ring cell carcinomas increased in 2 decades from 14% in group A to 36% in group B (p < 0.05). Proximal cancers were 16.61% in group A and increased to 19.66% in group B (p = 0.3). Total gastrectomy rate was 10.4% in group A versus 23.2% in group B (p < 0.05). CONCLUSION: This study has shown a significant increase of signet ring cell carcinomas with a simultaneous decrease in HPI in the last decade in central Tunisia.
INTRODUCTION: In developed countries, authors have reported variations over time in the seat and histological type of gastric adenocarcinomas, which were explained by Helicobacter pyloriinfection (HPI) incidence changes. In North-African countries and the Arabic world, epidemiological changes in gastric adenocarcinomas are still unknown. Our study aims to explore and to describe those changes in central Tunisia. MATERIALS AND METHODS: This is a retrospective observational and descriptive study including 876 cases based on the National Central Tunisian Register of Cancers over a period of 21 years. Two groups were formed and compared (group A: 337 patients from 1995 to 2005; group B: 539 patients from 2006 to 2015). RESULTS:HPI decreased from 32.6% in group A to 11.2% in group B (p < 0.05). Signet ring cell carcinomas increased in 2 decades from 14% in group A to 36% in group B (p < 0.05). Proximal cancers were 16.61% in group A and increased to 19.66% in group B (p = 0.3). Total gastrectomy rate was 10.4% in group A versus 23.2% in group B (p < 0.05). CONCLUSION: This study has shown a significant increase of signet ring cell carcinomas with a simultaneous decrease in HPI in the last decade in central Tunisia.