Distal esophageal spasm and gastroesophageal reflux disease: re-examining the association
Abstract
Distal esophageal spasm (DES) is a rare motility disorder presenting with dysphagia or chest pain. Although studies suggest a link between DES and gastroesophageal reflux disease (GERD), data supporting a distinct GERD-related phenotype are limited. This study aims to investigate demographic, symptomatic, and physiologic differences between DES subjects with and without GERD. A retrospective cohort analysis of DES patients determined by high resolution manometry (HRM) was conducted between February 2020 and January 2023. Demographics, medications, symptoms, and quantitative reflux testing data were collected. DES subjects with reflux (R-DES) were defined by presence of Los Angeles Grade B/C/D esophagitis, Barrett's metaplasia, or abnormal pH testing. DES subjects without reflux (NR-DES) had normal parameters. Statistical analysis employed two-sided or Wilcoxon Rank-Sum, Chi-squared, or Fisher's exact tests, and multivariate logistic regression. Of 69 DES subjects, 32 (46.3%) had GERD. R-DES and NR-DES patients had similar demographic variables except for higher BMI in R-DES (30.41 vs. 26.88, P = 0.01). R-DES and NR-DES shared similar symptom profiles (heartburn P = 0.67, dysphagia P = 0.448, chest pain P = 0.32). Proton pump inhibitor use was similar between groups (78.1% vs. 91.9%, P = 0.202). HRM metrics were comparable except for basal LES tone (20.7 mmHg vs. 32.99 mmHg, P = 0.03) and median IRP 11.82 mmHg versus 17.20 mmHg, P = 0.017). This study found no distinguishing…
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 69 participants or records.
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