cliot (version 1.0.0)

bova_pe_score: Bova Score for Pulmonary Embolism Complications

Description

Calculates the Bova Score to stratify the risk of PE-related complications (death, hemodynamic collapse, or recurrent PE) within 30 days in normotensive patients with acute pulmonary embolism. This tool helps identify patients who, despite being hemodynamically stable at presentation, are at intermediate-to-high risk for deterioration.

Usage

bova_pe_score(sbp, heart_rate, troponin_elevated, rv_dysfunction)

Value

A list containing:

Bova_Score

The calculated score (Range 0-7).

Risk_Stage

Risk classification (Stage I: 0-2, Stage II: 3-4, Stage III: >4).

PE_Related_Complication_Risk_30Day

Estimated percentage risk of complications within 30 days.

Arguments

sbp

Numeric. Systolic Blood Pressure in mmHg. (90-100 mmHg adds +2 points).

heart_rate

Numeric. Heart rate in beats per minute. (>= 110 bpm adds +1 point).

troponin_elevated

Numeric (0 or 1). Cardiac troponin elevated above the institutional upper limit of normal. (1 = Yes, +2 points).

rv_dysfunction

Numeric (0 or 1). Right Ventricular dysfunction visible on echocardiogram or CT. (1 = Yes, +2 points).

References

Bova C, Sanchez O, Prandoni P, et al. Identification of intermediate-risk patients with acute symptomatic pulmonary embolism. Eur Heart J. 2014;35(20):1348-1356. doi:10.1093/eurheartj/ehu007

Examples

# Example 1: High Risk (Stage III)
# SBP 95 (+2), HR 115 (+1), Troponin Neg (0), RV Dysfx (+2)
# Score = 5
bova_pe_score(95, 115, 0, 1)

# Example 2: Low Risk (Stage I)
# SBP 120 (0), HR 90 (0), Troponin Pos (+2), RV Normal (0)
# Score = 2
bova_pe_score(120, 90, 1, 0)