cliot (version 1.0.0)

rome_iv_functional_anorectal_pain: Rome IV Diagnostic Criteria for Functional Anorectal Pain

Description

Evaluates the Rome IV criteria for diagnosing Functional Anorectal Pain disorders, specifically distinguishing between Levator Ani Syndrome and Unspecified Functional Anorectal Pain. Diagnosis requires chronic/recurrent rectal pain lasting at least 30 minutes, exclusion of organic causes, and symptom chronicity (onset >= 6 months, active >= 3 months).

Usage

rome_iv_functional_anorectal_pain(chronic_rectal_pain, duration_ge_30_min,
                                  tenderness_puborectalis, organic_causes_excluded,
                                  symptom_onset_ge_6_months,
                                  symptoms_active_last_3_months)

Value

A list containing:

Diagnosis

Diagnostic result ("Levator Ani Syndrome", "Unspecified Functional Anorectal Pain", or "Criteria Not Met").

Arguments

chronic_rectal_pain

Numeric (0 or 1). Presence of chronic or recurrent rectal pain or aching. (1 = Yes).

duration_ge_30_min

Numeric (0 or 1). Do episodes last 30 minutes or longer? (1 = Yes).

tenderness_puborectalis

Numeric (0 or 1). Is there tenderness during posterior traction on the puborectalis muscle? (1 = Yes). Used to differentiate Levator Ani Syndrome from Unspecified Functional Anorectal Pain.

organic_causes_excluded

Numeric (0 or 1). Have other causes (e.g., ischemia, inflammatory bowel disease, cryptitis, hemorrhoids, anal fissures, tumor) been excluded? (1 = Yes).

symptom_onset_ge_6_months

Numeric (0 or 1). Did symptoms start at least 6 months ago? (1 = Yes).

symptoms_active_last_3_months

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

References

Rao SS, Bharucha AE, Chiarioni G, et al. Anorectal Disorders. Gastroenterology. 2016;150:1430-1442. doi:10.1053/j.gastro.2016.02.009

Examples

# Example 1: Levator Ani Syndrome
# Chronic pain (1), >30 min (1), Tenderness (1), Exclusions (1), Chronicity (1,1)
rome_iv_functional_anorectal_pain(1, 1, 1, 1, 1, 1)

# Example 2: Unspecified Functional Anorectal Pain
# Chronic pain (1), >30 min (1), No tenderness (0), Exclusions (1), Chronicity (1,1)
rome_iv_functional_anorectal_pain(1, 1, 0, 1, 1, 1)

# Example 3: Criteria Not Met (Duration too short)
# Pain <30 min (0)
rome_iv_functional_anorectal_pain(1, 0, 1, 1, 1, 1)