cliot (version 1.0.0)

rome_iv_opioid_induced_constipation: Rome IV Diagnostic Criteria for Opioid-Induced Constipation (OIC)

Description

Evaluates the Rome IV criteria for diagnosing Opioid-Induced Constipation (OIC) in adults. Diagnosis requires chronic opioid use, new or worsened constipation symptoms (meeting functional constipation criteria) following the initiation of opioids, and the absence of sufficient criteria for Irritable Bowel Syndrome (IBS).

Usage

rome_iv_opioid_induced_constipation(opioid_use_ge_3mo, symptom_onset_after_opioid,
                                    straining_ge_25_percent,
                                    lumpy_hard_stool_ge_25_percent,
                                    sensation_incomplete_evacuation_ge_25_percent,
                                    sensation_anorectal_blockage_ge_25_percent,
                                    manual_maneuver_ge_25_percent, lt_3_sbm_per_week,
                                    insufficient_criteria_for_ibs)

Value

A list containing:

Diagnosis

"Criteria Met for Opioid-Induced Constipation (OIC)" or "Criteria Not Met".

Constipation_Criteria_Count

The number of positive constipation symptoms (Q3-Q8).

Arguments

opioid_use_ge_3mo

Numeric (0 or 1). Chronic opioid use (at least 3 months). (1 = Yes).

symptom_onset_after_opioid

Numeric (0 or 1). New or worsening symptoms of constipation or onset after initiating opioids. (1 = Yes).

straining_ge_25_percent

Numeric (0 or 1). Straining during at least 25% of defecations. (1 = Yes).

lumpy_hard_stool_ge_25_percent

Numeric (0 or 1). Lumpy or hard stools (BSFS 1 or 2) in at least 25% of defecations

[Image of bristol stool scale chart] . (1 = Yes).

sensation_incomplete_evacuation_ge_25_percent

Numeric (0 or 1). Sensation of incomplete evacuation in at least 25% of defecations. (1 = Yes).

sensation_anorectal_blockage_ge_25_percent

Numeric (0 or 1). Sensation of anorectal obstruction/blockage in at least 25% of defecations. (1 = Yes).

manual_maneuver_ge_25_percent

Numeric (0 or 1). Use of manual maneuvers to facilitate at least 25% of defecations. (1 = Yes).

lt_3_sbm_per_week

Numeric (0 or 1). Less than 3 spontaneous bowel movements (SBM) per week. (1 = Yes).

insufficient_criteria_for_ibs

Numeric (0 or 1). Do criteria for Irritable Bowel Syndrome (IBS) fail to be met? (1 = Yes). This is a required exclusion.

References

Lacy BE, Mearin F, Chang L, et al. Bowel Disorders. Gastroenterology. 2016;150:1393-1407. doi:10.1053/j.gastro.2016.02.031

Examples

# Example 1: Diagnosis Met
# Opioid use (1), Symptoms worsened (1),
#Three constipation criteria met (e.g. straining, hard stool, lt 3 SBM)
rome_iv_opioid_induced_constipation(1, 1, 1, 1, 0, 0, 0, 1, 1)

# Example 2: Not Met (Insufficient Constipation Symptoms)
# Only one symptom met (straining).
rome_iv_opioid_induced_constipation(1, 1, 1, 0, 0, 0, 0, 0, 1)