Abstract
Background
The GCSI questionnaire measures symptoms of gastroparesis (GP). Symptoms of FD overlap with GP. The ability of the GCSI to discriminate FD from GP is unknown.
Aims
By prospectively evaluating functional dyspepsia (FD) patients, we aimed to evaluate the ability of the Gastroparesis Cardinal Symptom Index (GCSI) to: (1) distinguish FD from GP; (2) predict symptom severity, anxiety, and depression; (3) correlate symptoms with gastric emptying.
Methods
FD patients (Rome III criteria) were identified, and upper endoscopy and gastric emptying scan (GES) data recorded. A total of 254 patients were mailed a questionnaire evaluating demographics, FD symptoms, mental well-being; the GCSI was included.
Results
One hundred and twenty-three patients responded; of them, 75% were women and mean age was 49 (15 SD) years. 44.7% were categorized as postprandial distress subtype (PDS), 34.1% were epigastric pain subtype (EPS), and 21.1% were mixed type. The mean GCSI score was 2.02 (1.1 SD), slightly lower than historical GP controls (2.26–2.56). Mixed EPS–PDS subtype had the lowest GCSI scores (1.79; 0.91 SD). Bloating was the highest GCSI subscore (2.70; 1.53 SD), followed by fullness (2.31; 1.39 SD) and nausea (1.08; 1.19 SD). The GCSI total score did not correlate with anxiety and depression scores or with 4-h gastric emptying.
Conclusions
In this population of FD patients, GCSI scores were slightly lower than historical gastroparesis control patients, although within the reported range. These results suggest that the GCSI cannot accurately distinguish FD patients from GP patients. A more specific questionnaire is needed to aid in the diagnosis and management of these distinct gastrointestinal disorders.
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Acknowledgment
The authors would like to thank the patients at the Dartmouth-Hitchcock Medical Center who kindly filled out the detailed questionnaire.
Funding
No external funding was provided for this study. The study was personally funded by the P.I.
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BEL, KE, and MDC all equally contributed to the design of the study, interpretation of the data, and writing and editing of the manuscript. No outside support was provided to help with data interpretation, data analysis, or writing or editing of the manuscript. None of the authors have any relevant disclosures pertinent to this manuscript.
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Lacy, B.E., Everhart, K. & Crowell, M.D. Functional Dyspepsia: Clinical Symptoms, Psychological Findings, and GCSI Scores. Dig Dis Sci 64, 1281–1287 (2019). https://doi.org/10.1007/s10620-018-5347-2
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DOI: https://doi.org/10.1007/s10620-018-5347-2