cliot (version 1.0.0)

plan_stroke_score: PLAN Score for Stroke

Description

Calculates the PLAN score to predict 30-day and 1-year mortality, as well as severe disability (mRS 5-6) at discharge, for patients with acute ischemic stroke. The score uses clinical variables including Preadmission comorbidities, Level of consciousness, Age, and Neurologic deficit.

Usage

plan_stroke_score(age, preadmission_dependence, cancer, congestive_heart_failure,
                  atrial_fibrillation, reduced_consciousness, arm_weakness,
                  leg_weakness, aphasia_neglect)

Value

A list containing:

PLAN_Score

The calculated total risk score.

Est_30_Day_Mortality

Estimated 30-day mortality percentage.

Est_1_Year_Mortality

Estimated 1-year mortality percentage.

Poor_Outcome_Discharge_mRS_5_6

Estimated percentage of patients with mRS 5-6 (severe disability or death) at discharge.

Arguments

age

Numeric. Patient age in years. 61-70: 2 pts. 71-80: 5 pts. 81-90: 7 pts. >90: 9 pts.

preadmission_dependence

Numeric (0 or 1). Preadmission dependence (e.g., Rankin score >= 3) requiring assistance for ADLs. (1 = Yes, +1.5 pts).

cancer

Numeric (0 or 1). History of cancer (excluding non-melanoma skin cancer). (1 = Yes, +1.5 pts).

congestive_heart_failure

Numeric (0 or 1). History of congestive heart failure. (1 = Yes, +1 pt).

atrial_fibrillation

Numeric (0 or 1). History of atrial fibrillation. (1 = Yes, +1 pt).

reduced_consciousness

Numeric (0 or 1). Reduced level of consciousness on admission (not fully alert). (1 = Yes, +5 pts).

arm_weakness

Numeric (0 or 1). Significant or total arm weakness. (1 = Yes, +2 pts).

leg_weakness

Numeric (0 or 1). Significant or total leg weakness. (1 = Yes, +2 pts).

aphasia_neglect

Numeric (0 or 1). Presence of aphasia or neglect. (1 = Yes, +1 pt).

References

O'Donnell MJ, Fang J, D'Uva C, et al. The PLAN score: a bedside prediction rule for death and severe disability following acute ischemic stroke. Arch Intern Med. 2012;172(20):1548-1556. doi:10.1001/2013.jamainternmed.30

Examples

# Example 1: Low Risk
# 55yo, No comorbidities, Alert, Mild Arm Weakness (not significant)
# Score = 0
plan_stroke_score(55, 0, 0, 0, 0, 0, 0, 0, 0)

# Example 2: High Risk
# 85yo (+7), AF (+1), Reduced LOC (+5), Total Arm/Leg Weakness (+4)
# Score = 17
plan_stroke_score(85, 0, 0, 0, 1, 1, 1, 1, 0)