Reassessing negative 24 h pH impedance tests for hidden gastroesophageal reflux disease using multi feature anomaly detection.
Lee S; Lee J; Park D; Lee SK; Cho JH; Lee KG; Kim HM; Ryu S · 2026 · NPJ digital medicine
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Gastroesophageal reflux disease (GERD) diagnosis traditionally relies on acid exposure time (AET) obtained from 24-h multichannel intraluminal impedance-pH (MII-pH) monitoring, the gold standard for GERD diagnosis. However, a negative…
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Metadata source: Europe PMC · DOI 10.1038/s41746-026-02796-y