- •There is not a current standardized approach to evaluate candidacy for anti-reflux surgery.
- •Marshmallow swallow study (MSS) is a minimally invasive way to evaluate candidacy for anti-reflux procedures.
- •MSS follows trends of high resolution manometry (HRM) results.
The purpose of our study was to evaluate the use of minimally invasive Marshmallow Swallow Study (MSS) as a preoperative screening technique for patients and correlate marshmallow results with High Resolution Manometry (HRM) results and post-operative dysphagia following antireflux surgery. Methods: A retrospective electronic chart review of data on 61 adult patients undergoing MSS was completed. Patients were included if they completed the MSS as well as: HRM and/or antireflux surgery. Results: Sixty-one patients completed MSS. Of the 37 patients that completed HRM, 27 had abnormal results. 23 of these 27 patients who had abnormal results also failed MSS. The NPV for a failure on the MSS and abnormal HRM results is 0.767(p-value = 0.360). The PPV for a pass on the MSS and no post-operative dysphagia is 0.833 (p-value = 0.656). Conclusions: MSS is an effective screening tool for ruling out major esophageal motility disorders and can prevent need for invasive HRM.
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Published online: October 17, 2022
Accepted: October 13, 2022
Received in revised form: October 3, 2022
Received: March 25, 2022
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