cliot (version 1.0.0)

euromacs_rhf_score: EUROMACS Right Heart Failure (RHF) Risk Score

Description

Calculates the EUROMACS RHF Score to predict the risk of early right heart failure following Left Ventricular Assist Device (LVAD) implantation. This scoring system was derived from the European Registry for Patients with Mechanical Circulatory Support (EUROMACS).

Usage

euromacs_rhf_score(cvp_pcwp_ratio_gt_054, multiple_inotropes,
                   severe_rv_dysfunction, intermacs_1_2, hemoglobin_le_10)

Value

A list containing:

EUROMACS_Score

The calculated risk score (Range 0-9.5).

Risk_Category

Classification (Low 0-2, Intermediate 2.5-4, High >4).

Early_RHF_Risk

Estimated percentage risk of early RHF.

Arguments

cvp_pcwp_ratio_gt_054

Numeric (0 or 1). Is the ratio of Right Atrial Pressure (CVP) to Pulmonary Capillary Wedge Pressure (PCWP) > 0.54? (1 = Yes, +2 points).

multiple_inotropes

Numeric (0 or 1). Requirement for >= 2 inotropes? (1 = Yes, +2.5 points).

severe_rv_dysfunction

Numeric (0 or 1). Presence of severe Right Ventricular (RV) dysfunction on echocardiography (TAPSE < 14mm or subjective assessment). (1 = Yes, +2 points).

intermacs_1_2

Numeric (0 or 1). INTERMACS Profile 1 ("Crash and Burn") or 2 ("Sliding on Inotropes"). (1 = Yes, +2 points).

hemoglobin_le_10

Numeric (0 or 1). Hemoglobin <= 10 g/dL (<= 100 g/L). (1 = Yes, +1 point).

References

Soliman OI, Akin S, Muslem R, et al. Derivation and validation of a novel right heart failure prediction score for patients undergoing left ventricular assist device implantation: the EUROMACS (European Registry for Patients with Mechanical Circulatory Support) Right Heart Failure Risk Score. Eur J Cardiothorac Surg. 2018;53(4):847-855. doi:10.1093/ejcts/ezx320

Examples

# Example 1: High Risk
# Ratio > 0.54 (+2), Severe RVD (+2), Multiple Inotropes (+2.5)
# Score = 6.5
euromacs_rhf_score(1, 1, 1, 0, 0)

# Example 2: Low Risk
# Hemoglobin 9.5 (+1), no other factors
# Score = 1
euromacs_rhf_score(0, 0, 0, 0, 1)