Acquired long QT syndrome: long-term electrocardiographic (Holter) recording of torsades de pointes ending in asystole: II.
The Holter recording in an elderly female patient on Risperidone treatment who developed a longer than expected prolonged QT interval and associated torsades de pointes (TdP) at the onset of complete AV block is presented. The electrocardiographic manifestation of (likely) phase 2 early afterdepolarizations (EAD) as a trigger of TdP episodes; the TdP undulating or monomorphic morphologies as a counterpart of drifting or stationery scrolls, respectively, and the TdP final extinction leading to asystole and death are shown.
Raviña
Tomas
T
Gutierrez
Javier
J
Raviña
Paula
P
D000368:Aged; D015716:Electrocardiography, Ambulatory; D005260:Female; D006323:Heart Arrest / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008133:Long QT Syndrome / Q000139:chemically induced / Q000150:complications* / Q000175:diagnosis*; D018967:Risperidone / Q000009:adverse effects; D016171:Torsades de Pointes / Q000175:diagnosis* / Q000209:etiology*
D018967:Risperidone