Syncope after effort.
A 29-year-old man developed recurrent syncope following exertion. Cardiac investigations revealed no evidence of structural heart disease, but during exercise testing, in the recovery phase, he sustained a bradycardia and then asystole for a prolonged period. Before cardiac massage could be instituted a tonic-clonic fit occurred, and this initiated a return to sinus rhythm. His symptoms were abolished following the implantation of a dual-chamber pacemaker.
Lowe
M D
MD
Cardiac Unit, Papworth Hospital, Papworth Everard, Cambridge CB3 8RE, UK.
Petch
M C
MC
D000328:Adult; D001919:Bradycardia / Q000150:complications; D002304:Cardiac Pacing, Artificial; D004830:Epilepsy, Tonic-Clonic / Q000150:complications; D006323:Heart Arrest / Q000150:complications; D006801:Humans; D008297:Male; D005082:Physical Exertion; D019462:Syncope, Vasovagal / Q000209:etiology* / Q000517:prevention & control