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. 2020 Nov 6;15(11):e0241847.
doi: 10.1371/journal.pone.0241847. eCollection 2020.

Small hiatal hernia and postprandial reflux after vertical sleeve gastrectomy: A multiethnic Asian cohort

Tiffany Jian Ying Lye  1 , Kiat Rui Ng  2 , Alexander Wei En Tan  2 , Nicholas Syn  3 , Shi Min Woo  3 , Eugene Kee Wee Lim  1 , Alvin Kim Hock Eng  1 , Weng Hoong Chan  1 , Jeremy Tian Hui Tan  1 , Chin Hong Lim  1
Affiliations

Small hiatal hernia and postprandial reflux after vertical sleeve gastrectomy: A multiethnic Asian cohort

Tiffany Jian Ying Lye et al. PLoS One. .

Abstract

Background: Laparoscopic vertical sleeve gastrectomy (LSG) is a popular bariatric procedure performed in Asia, as obesity continues to be on the rise in our population. A major problem faced is the development of de novo gastroesophageal reflux disease (GERD) after LSG, which can be chronic and debilitating. In this study, we aim to assess the relationship between the presence of small hiatal hernia (HH) and the development of postoperative GERD, as well as to explore the correlation between GERD symptoms after LSG and timing of meals. In doing so, we hope to gain a better understanding about the type of reflux that occurs after LSG and take a step closer towards effectively managing this difficult to treat condition.

Methods: We retrospectively reviewed data collected from patients who underwent LSG in our hospital from Dec 2008 to Dec 2016. All patients underwent preoperative upper GI endoscopy, during which the identification of hiatal hernia takes place. Patients' information and reflux symptoms are recorded using standardized questionnaires, which are administered preoperatively, and again during postoperative follow up visits.

Results: Of the 255 patients, 125 patients (74%) developed de novo GERD within 6 months post-sleeve gastrectomy. The rate of de novo GERD was 57.1% in the group with HH, and 76.4% in the group without HH. Adjusted analysis showed no significant association between HH and GERD (RR = 0.682; 95% CI 0.419 to 1.111; P = 0.125). 88% of the patients who developed postoperative GERD reported postprandial symptoms occurring only after meals, and the remaining 12% of patients reported no correlation between the timing of GERD symptoms and meals.

Conclusion: There is no direct correlation between the presence of small hiatal hernia and GERD symptoms after LSG. Hence, the presence of a small sliding hiatal hernia should not be exclusion for sleeve gastrectomy. Electing not to perform concomitant hiatal hernia repair also does not appear to result in higher rates of postoperative or de novo GERD.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Endoscopic diagnosis of a hiatus hernia.
Hiatal hernia diagnosis is made based on the presence of a diaphragmatic indentation of at least 2 cm distal to the squamo-columnar junction or Z-line.
Fig 2
Fig 2. Standardized questionnaire for GERD in bariatric patients.
Fig 3
Fig 3. Patient selection flowchart.
See this image and copyright information in PMC

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