This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
Cardiology
16 calculators · blood pressure, ABPM, QTc, echo z-scores, coronary arteries in Kawasaki disease, hemodynamics
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Blood pressure percentiles
Systolic and diastolic by age, sex and height – KiGGS and AAP 2017 -
Vital signs by age
Heart rate, respiratory rate and systolic blood pressure – usual ranges (P5–P95) -
QTc calculator
QT interval and heart rate → QTc according to Bazett, Fridericia, Hodges and Framingham, with pediatric reference values -
ECG reference values
Heart rate, QTc and R amplitude in V6 by age and sex – reference work with classification of your own values -
Echo z-scores
Z-scores of echocardiographic measures from body surface area and measured value – Pettersen 2008 (21 structures), Kampmann 2000 (M-mode) -
Mean Arterial Pressure (MAP)
Mean arterial pressure from systolic and diastolic pressure -
Pulse pressure
Systolic minus diastolic pressure – with proportion of the systolic pressure -
Fractional Shortening (FS)
From LVEDD and LVESD – with Teichholz ejection fraction -
Ejection fraction
From end-diastolic and end-systolic volume (Simpson) or from diameters (Teichholz) -
Cardiac Output (CO)
Stroke volume × heart rate – from volumes or from Doppler (VTI × LVOT area) -
Cardiac Index (CI)
Cardiac output per m² body surface area – with reference range for children -
Stroke Volume (SV)
From EDV − ESV, from cardiac output ÷ heart rate or from Doppler -
Stroke Volume Index (SVI)
Stroke volume per m² body surface area -
24-h blood pressure (ABPM) – percentiles and classification
Reference values by height or age (Wühl 2002) for 24 h, day and night; classification according to AHA 2022 including dipping -
Coronary artery z-score (Kawasaki syndrome)
Z-score of the internal diameter of LMCA, LAD, LCx and RCA according to Dallaire 2011, McCrindle 2007 or Olivieri 2009 – with AHA 2017 classification -
Modified Ross score (heart failure)
Sweating, tachypnea, respiration, age-related respiratory and heart rate, liver size – 0–12 points, classes I–IV