Systemic sclerosis & Raynaud's

Proton pump inhibitor (PPI)-refractory gastroesophageal reflux disease (GERD) in SSc is driven by distinct oesophageal and gastric motility abnormalities

Rheumatology (Oxford)Published Retrospective cohort study

Authors' conclusion

PPI-refractory GERD is nearly universal in this SSc cohort and reflects heterogeneous, quantifiable abnormalities across the foregut, including impaired oesophageal clearance and increased reflux burden related to gastric retention.

Study context

Population
Adults with SSc undergoing ambulatory pH/MII monitoring on twice-daily PPI therapy (2021–25), single centre
Participants
30 adults
Exposure
SSc patients with vs without oesophageal and gastric dysmotility
Outcome
Refractory GERD (Lyon 2.0 classification)
Methodological detailssingle-centre, 67% had PPI-refractory reflux symptoms; 33% undergoing pre-lung transplantation evaluation
  • Single-centre
  • 67% had PPI-refractory reflux symptoms; 33% undergoing pre-lung transplantation evaluation

Main finding

As reported in the abstract

Refractory GERD
29/30 patients (97%)
Conclusive evidence
53%
Borderline evidence
43%
Oesophageal dysmotility
80%
Absent contractility (most common oesophageal dysmotility)
67%
Gastric dysmotility
60.7%

Observational data: associations, not effects.

Further findings

OutcomeOesophageal dysmotilityminNo oesophageal dysmotilityminGastric dysmotilityNo gastric dysmotility
Acid clearance timeSpread kind not named in abstract2.20 (range 1.15–3.75)1.15 (range 0.43–1.90)— not stated in the abstract— not stated in the abstract
Reflux episode durationSpread kind not named in abstract16.60 (range 4.38–40.63)1.95 (range 0.53–20.43)— not stated in the abstract— not stated in the abstract
Reflux episode burdenSpread kind not named in abstract— not stated in the abstract— not stated in the abstract51.00 (range 30.00–81.50) episodes/24 h25.00 (range 21.00–54.00) episodes/24 h

— not stated in the abstract

Original publication

PPI-refractory GERD in SSc is driven by distinct oesophageal and gastric motility abnormalities. Rheumatology (Oxford). Published 20 August 2026. doi:10.1093/rheumatology/keag451

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