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Published in: Surgical Endoscopy 3/2020

01-03-2020 | Obesity

Hiatal hernia diagnosis prospectively assessed in obese patients before bariatric surgery: accuracy of high-resolution manometry taking intraoperative diagnosis as reference standard

Authors: Antonella Santonicola, Luigi Angrisani, Antonio Vitiello, Salvatore Tolone, Nigel John Trudgill, Carolina Ciacci, Paola Iovino

Published in: Surgical Endoscopy | Issue 3/2020

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Abstract

Background

Hiatal hernia (HH) is common in obese patients undergoing bariatric surgery. Preoperative traditional techniques such as upper gastrointestinal endoscopy (UGIE) or barium swallow/esophagram do not always correlate with intraoperative findings. High-resolution manometry (HRM) has shown a higher sensitivity and specificity than traditional techniques in non-obese patients in the HH diagnosis, whereas there is a lack of data in the morbidly obese population. We aimed to prospectively assess the diagnostic accuracy of HRM in HH detection, in comparison with barium swallow and UGIE, assuming intraoperative diagnosis as a standard of reference.

Methods

Forty-one consecutive morbidly obese patients prospectively recruited from a tertiary-care referral hospital devoted to bariatric and metabolic surgery underwent a preoperative evaluation including standardized GERD questionnaires, barium swallow, UGIE, and HRM. The surgical procedures were performed by a single surgeon who was blinded to the results of other investigations.

Results

HH was intraoperatively diagnosed in 11/41 patients (26.8%). In 10/11 patients, the preoperative HRM showed an esophagogastric junction suggestive of HH. When compared to intraoperative evaluation, the sensitivity of the HRM was 90.9% and the specificity 63.3%, with a positive predictive value of 47.6% and a negative predictive value of 95.0%. HRM showed a higher sensitivity and specificity compared to barium swallow and UGIE.

Conclusions

HRM has a high accuracy of HH detection in morbidly obese patients assuming an intraoperative diagnosis as reference standard. It could therefore be a very useful tool in the preoperative work-up of obese patients undergoing bariatric surgery.
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Metadata
Title
Hiatal hernia diagnosis prospectively assessed in obese patients before bariatric surgery: accuracy of high-resolution manometry taking intraoperative diagnosis as reference standard
Authors
Antonella Santonicola
Luigi Angrisani
Antonio Vitiello
Salvatore Tolone
Nigel John Trudgill
Carolina Ciacci
Paola Iovino
Publication date
01-03-2020
Publisher
Springer US
Published in
Surgical Endoscopy / Issue 3/2020
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-019-06865-0

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