?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Electrophysiological+evaluation+of+Wolff-Parkinson-White+Syndrome&rft.creator=Brembilla-Perrot%2C+B%C3%A9atrice&rft.subject=Indian+Pacing+and+Electrophysiology+Journal&rft.description=Sudden+death+might+complicate+the+follow-up+of+symptomatic+patients+with+the+Wolff-Parkinson-White+syndrome+(WPW)+and+might+be+the+first+event+in+patients+with+asymptomatic+WPW.+The+risk+of+sudden+death+is+increased+in+some+clinical+situations.+Generally%2C+the+noninvasive+studies+are+unable+to+predict+the+risk+of+sudden+death+correctly+.+The+electrophysiological+study+is+the+best+means+to+detect+the+risk+of+sudden+death+and+to+evaluate+the+nature+of++symptoms.+Methods+used+to+define+the+prognosis+of+WPW+are+well-defined.+At+first+the+maximal+rate+of+conduction+through+the+accessory+pathway++is+evaluated%3B+programmed+atrial+stimulation+using+1+and+2+extrastimuli+delivered+at+different+cycle+lengths+is+then+used+to+determine+the+accessory+pathway+refractory+period+and+to+induce+a+supraventricular+tachycardia.+These+methods+should+be+performed+in+the+control+state+and+repeated+in+adrenergic+situations+either+during+exercise+test+or+more+simply+during+a+perfusion+of+small+doses+of+isoproterenol.+The+induction+of+an+atrial+fibrillation+with+rapid+conduction+through+the+accessory+pathway+(%3E+240%2Fmin+in+control+state%2C+%3E+300%2Fmin+after+isoproterenol)+is+the+sign+of+a+form+of+WPW+at+risk+of+sudden+death.+%0A&rft.publisher=Indian+Pacing+and+Electrophysiology+Group&rft.contributor=Singh%2C+Balbir&rft.contributor=Lokhandwala%2C+Yash&rft.contributor=Francis%2C+Johnson&rft.contributor=Gupta%2C+Anup&rft.date=2002-10&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F4303%2F1%2Fperrot.htm&rft.identifier=++Brembilla-Perrot%2C+B%C3%A9atrice++(2002)+Electrophysiological+evaluation+of+Wolff-Parkinson-White+Syndrome.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F4303%2F