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Crying Infant 

Crying Infant
Crying Infant
Acute Care Casebook

Caroline Black


This chapter reviews the most common pediatric arrhythmia, supraventricular tachycardia (SVT). SVT often presents as fussiness in infants as well as other symptoms concerning for congenital heart failure, sepsis, gastrointestinal obstruction, or physical conditions such as hair tourniquets. It also reviews recognition of tachycardia with associated electrocardiogram waveform abnormalities (narrow QRS complex, absent P waves) consistent with SVT. It examines key aspects in the evaluation of hemodynamic status (perfusion and mental status) and its importance in the recognition and classification of stable versus unstable SVT. It discusses the guidance of management strategy following hemodynamic assessment with use of vagal maneuvers or adenosine in stable SVT and emergent cardioversion in unstable SVT.

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