cliot (version 1.0.0)

pedsrc_bat_rule: PedSRC Rule for Pediatric Blunt Abdominal Trauma

Description

Calculates the risk stratification for Intra-abdominal Injury (IAI) in pediatric patients with blunt abdominal trauma, based on the Pediatric Surgery Research Collaborative (PedSRC) guidelines. The rule identifies patients at very low risk for IAI who may safely avoid abdominal CT scans.

Usage

pedsrc_bat_rule(abdominal_tenderness, abdominal_wall_trauma, gcs_score, ast, alt,
                urinalysis_hematuria_gt_5_rbc, abnormal_xray = 0)

Value

A list containing:

Risk_Classification

"Very Low Risk" if no criteria are met, otherwise "Not Low Risk".

Recommendation

Clinical guidance regarding the need for CT imaging.

Criteria_Present

List of positive risk factors identified.

Arguments

abdominal_tenderness

Numeric (0 or 1). Presence of abdominal tenderness on physical examination. (1 = Yes).

abdominal_wall_trauma

Numeric (0 or 1). Evidence of abdominal wall trauma, such as bruising or a seatbelt sign. (1 = Yes).

gcs_score

Numeric. Glasgow Coma Scale score. (GCS < 14 is a risk factor).

ast

Numeric. Aspartate Aminotransferase level in U/L. (> 200 U/L is a risk factor).

alt

Numeric. Alanine Aminotransferase level in U/L. (> 125 U/L is a risk factor).

urinalysis_hematuria_gt_5_rbc

Numeric (0 or 1). Presence of microscopic hematuria (> 5 RBC/hpf) on urinalysis. (1 = Yes).

abnormal_xray

Numeric (0 or 1). Presence of abnormal findings on chest or pelvic X-ray (e.g., rib/pelvic fracture), if performed. (1 = Yes, 0 = No/Not Performed).

References

Streck CJ, Vogel AM, Zhang J, et al. Pediatrics Surgery Research Collaborative (PedSRC). Derivation and validation of a clinical prediction rule for pediatric blunt abdominal trauma.

Examples

# Example 1: Low Risk
# No tenderness, no trauma sign, GCS 15, normal labs
pedsrc_bat_rule(0, 0, 15, 40, 35, 0, 0)

# Example 2: High Risk
# Seatbelt sign present (1), AST 250, Hematuria present (1)
pedsrc_bat_rule(0, 1, 15, 250, 40, 1, 0)