M. Shinohara et al., Neurally mediated syncope and arrhythmias - A study of syncopal patients using the head-up tilt test, JPN CIRC J, 63(5), 1999, pp. 339-342
Citations number
15
Categorie Soggetti
Cardiovascular & Respiratory Systems","Cardiovascular & Hematology Research
Understanding the causes of syncope in patients with arrhythmia is importan
t in determining the therapeutic interventions. Neurally mediated syncope (
NMS) was evaluated in 55 patients with various arrhythmias. The head-up til
t test with or without isoproterenol infusion induced NMS in 41 (74%) patie
nts. When these patients was categorized into 3 types, depending on the dev
elopment of syncope, vasodilatation was significant in a majority of patien
ts. In 46% of patients with tachyarrythmias, NMS was accompanied by an incr
ease in extrasystole. It was concluded that the evaluation of vasodilatatio
n is important for the preventive strategy of NMS in patients with arrhythm
ias and that NMS may induce arrhythmias.