6533b82bfe1ef96bd128cea4

RESEARCH PRODUCT

Extreme Pulsus Alternans with P Wave Alternans in a Child

V. SperandeoGiudice GS. PipitoneMario Giuffrè

subject

MaleNitroprussidemedicine.medical_specialtyElectrical alternansVentricular Dysfunction LeftElectrocardiographyDoppler EchocardiographyAfterloadmedicine.arteryInternal medicinePulse frequencyHumansMedicinecardiovascular diseasesCardiac OutputChildPulseCycle lengthAntihypertensive AgentsAortabusiness.industryP waveEchocardiography DopplerPulsus alternansAnesthesiaHypertensionPediatrics Perinatology and Child Healthcardiovascular systemCardiologymedicine.symptomCardiology and Cardiovascular Medicinebusiness

description

Pulsus alternans was observed in a child with left ventricular dysfunction secondary to systemic hypertension. The Echo-Doppler of supravalvular aorta and a simultaneous electrocardiographic trace (ECG) clearly demonstrated the mechanism of an apparent abrupt halving of pulse frequency compared with the ECG, similar to an electromechanical dissociation 2: 1. Besides the extreme pulsus alternans, a P wave and a PP cycle length change were also observed. Both mechanical and electrical alternans disappeared with afterload reduction by nitroprusside treatment.

yearjournalcountryeditionlanguage
2002-09-05Pediatric Cardiology
https://doi.org/10.1007/pl00021004