Background A 25-year-old woman experienced three episodes of syncope over the course of 2 years. The attacks all occurred just after she had sat down, and two were accompanied by convulsions. She had ...

Short coupled variant torsade de pointes PVCs with a short coupling interval (less than 300 ms), originating from the Purkinje fibers PVCs had a coupling interval of 380 ms Catecholaminergic ...

A 25-year-old woman presented to her local hospital following her third episode of syncope in 2 years. All three episodes occurred when she sat down -- the first on a train; the second and third after ...