Cardiology
Echo z-scores, QTc, coronary z-scores, Kawasaki, BP screening, anticoagulation dosing, and more
QTc Interval
Calculates corrected QT interval using Bazett, Fridericia, Hodges, and Framingham formulas
Echo Z-Scores
Calculates z-scores for cardiac structures by echocardiography using multiple published datasets
Coronary Artery Z-Score
Dallaire coronary artery z-scores with AHA classification for Kawasaki disease
Doppler Z-Scores
BSA-indexed z-scores for pulsed Doppler velocities, times, and VTI at the aortic valve, pulmonary valve, and aortic arch
Fetal Echo Z-Scores
Z-scores for fetal cardiac measurements using gestational age, BPD, femur length, or head circumference (Lussier 2020)
Strain Z-Scores
Age-based z-scores for LV and RV speckle-tracking strain in children (Romanowicz 2023, n=1032)
TDI & PWD Z-Scores
BSA-indexed z-scores for pulse wave Doppler and tissue Doppler imaging velocities in children (Dallaire 2015, n=233)
Chamber Z-Scores
BSA-indexed z-scores for atrial and ventricular chamber dimensions and areas (Cantinotti 2014, n=1091)
LV Fractional Shortening
Calculates left ventricular fractional shortening from M-mode echocardiography measurements
LV Ejection Fraction (Teichholz)
Estimates left ventricular ejection fraction using the Teichholz formula from M-mode dimensions
TAPSE Z-Score
Tricuspid annular plane systolic excursion with age-dependent z-score for RV systolic function assessment
Tei Index (RV MPI)
Right ventricular myocardial performance index combining systolic and diastolic function assessment
Tei Index (LV MPI)
Left ventricular myocardial performance index combining systolic and diastolic function assessment
Diastolic Function (E/A, E/e')
Assesses diastolic function using mitral inflow E/A ratio and tissue Doppler E/e' ratio
Continuity Equation (AVA)
Calculates aortic valve area using the continuity equation with LVOT diameter and VTI measurements
RACHS-1
Risk Adjustment for Congenital Heart Surgery: 6-category operative mortality risk stratification
STAT Mortality Score
STS-EACTS Mortality Score: 5-category empirically based CHD surgical mortality classification
VVR Score
Vasoactive-Ventilation-Renal score for predicting outcomes after pediatric cardiac surgery
TR Jet / RVSP
Estimates right ventricular systolic pressure from tricuspid regurgitation jet velocity using simplified Bernoulli
PH Risk Stratification (EPPVDN)
European Pediatric Pulmonary Vascular Disease Network risk stratification for pediatric pulmonary hypertension
Kobayashi Score
Predicts IVIG resistance risk in Kawasaki disease using 7 clinical and laboratory criteria
Coronary Aneurysm Classification
AHA 2017 coronary artery aneurysm classification by z-score for Kawasaki disease
AAP 2017 BP Percentiles (Full)
Full AAP 2017 normative blood pressure percentiles with height percentile adjustment and BP stage classification
Kawasaki Disease Diagnostic Algorithm
AHA 2017 diagnostic criteria for classic and incomplete Kawasaki disease. Guides evaluation and treatment initiation.
Endocarditis Prophylaxis
Antibiotic prophylaxis for infective endocarditis per AHA 2007 guidelines
MAP Calculator
Calculates mean arterial pressure with age-adjusted normal ranges and interpretation