Congenital complete heart block and vasodepressor syncope.
An 18-year-old boy with congenital complete heart block presented with recurrent syncope following insertion of a rate-responsive dual-chamber pacemaker. Head-up tilt testing demonstrated a primary vasodepressor response with severe hypotension and reproduction of symptoms. Treatment with fludrocortisone and salt abolished symptoms, and repeat tilt testing was negative.
Dikkala
V
V
Heart Clinic, Royal Liverpool Children's Hospital, UK.
Peart
I
I
Sreeram
N
N
D000293:Adolescent; D006327:Heart Block / Q000150:complications* / Q000151:congenital* / Q000503:physiopathology; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007024:Hypotension, Orthostatic / Q000150:complications; D008297:Male; D010138:Pacemaker, Artificial; D011187:Posture / Q000502:physiology; D013575:Syncope / Q000150:complications* / Q000503:physiopathology; D013616:Tachycardia, Sinus / Q000209:etiology