cliot (version 1.0.0)

rome_iv_functional_dysphagia: Rome IV Diagnostic Criteria for Functional Dysphagia

Description

Evaluates the Rome IV criteria for diagnosing Functional Dysphagia. Diagnosis requires persistent difficulty swallowing (dysphagia), typically for solids only, that is non-odynophagic (not painful) and not explained by organic disease (structural, Eosinophilic Esophagitis, GERD, or major motility disorders). Symptoms must be chronic (onset >= 6 months, active >= 3 months).

Usage

rome_iv_functional_dysphagia(non_odynophagia_dysphagia, swallowing_solids_only,
                             no_structural_obstruction, no_eosinophilic_esophagitis,
                             no_gerd, no_major_motility_disorder,
                             symptom_onset_ge_6_months, symptoms_active_last_3_months)

Value

A list containing:

Diagnosis

"Criteria Met for Functional Dysphagia" or "Criteria Not Met".

Arguments

non_odynophagia_dysphagia

Numeric (0 or 1). Presence of dysphagia that is non-odynophagic (not painful). (1 = Yes).

swallowing_solids_only

Numeric (0 or 1). Does the dysphagia occur primarily for solid foods, not liquids? (1 = Yes).

no_structural_obstruction

Numeric (0 or 1). Has structural obstruction (e.g., stricture, mass) been excluded by upper endoscopy? (1 = Yes).

no_eosinophilic_esophagitis

Numeric (0 or 1). Has Eosinophilic Esophagitis (EoE) been excluded? (1 = Yes).

no_gerd

Numeric (0 or 1). Has Gastroesophageal Reflux Disease (GERD) been excluded (e.g., negative pH monitoring, no response to PPI)? (1 = Yes).

no_major_motility_disorder

Numeric (0 or 1). Have major esophageal motility disorders (e.g., achalasia, spasm) been excluded by manometry? (1 = Yes).

symptom_onset_ge_6_months

Numeric (0 or 1). Did symptom onset occur at least 6 months prior to diagnosis? (1 = Yes).

symptoms_active_last_3_months

Numeric (0 or 1). Have symptoms been active for the last 3 months? (1 = Yes).

References

Aben-Fawaz H, Kahrilas PJ, Chen J. Esophageal disorders. Gastroenterology. 2016;150:1367-1379. doi:10.1053/j.gastro.2016.02.002

Examples

# Example 1: Diagnosis Met
# All exclusion criteria and symptom characteristics are met and chronic
rome_iv_functional_dysphagia(1, 1, 1, 1, 1, 1, 1, 1)

# Example 2: Not Met (Major Motility Disorder Present)
# All criteria met except manometry shows achalasia (0)
rome_iv_functional_dysphagia(1, 1, 1, 1, 1, 0, 1, 1)