<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Dear attendants to this great symposium on the Internet,</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">I wish to pose the case of a 50-year-old female patient with first episode (3 years ago) of paroxysmal atrial fibrillation with rapid ventricular response (170 b/min), which was accompanied by precordial oppression and prolonged presyncope. She has been receiving treatment with verapamil, atenolol, separately or combined, inconstantly. In a recurrent way, she presents clinics of “palpitations” related to paroxysmal AF in several ECG recordings, now with preserved ventricular response. The resting ECG shows a sinus rhythm pattern, and a normal one. TT echocardiogram shows baseline Septum Hypertrophy of 15 mm (asymmetrical) without Intraventricular or transvalvular gradients; the left atrium slightly dilated, the LVEF is preserved. The functional class is I according to the NYHA. She denies family history of “sudden” death due to any cause. I am thinking of starting treatment with amiodarone to prevent recurrences of AF. However, what role may the indication of an ICD have to prevent SCD on this patient? Which would be the other risk stratification tests for SD applicable in this situation?</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Thank you very much,</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Dr. César Landaeta T.</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Cardiologo Electrofisiólogo</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Venezuela</DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">--</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Dr.<SPAN class="Apple-converted-space"> </SPAN>Sergio<SPAN class="Apple-converted-space"> </SPAN>Dubner</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">President<SPAN class="Apple-converted-space"> </SPAN>of<SPAN class="Apple-converted-space"> </SPAN>Scientific<SPAN class="Apple-converted-space"> </SPAN>Committee</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 13px/normal Lucida Grande; min-height: 16px; ; font-family: Lucida Grande; font-size: 13px; "><BR style="font-family: Lucida Grande; font-size: 13px; "></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Dr.<SPAN class="Apple-converted-space"> </SPAN>Edgardo<SPAN class="Apple-converted-space"> </SPAN>Schapachnik</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">President<SPAN class="Apple-converted-space"> </SPAN>of<SPAN class="Apple-converted-space"> </SPAN>Steering<SPAN class="Apple-converted-space"> </SPAN>Committee</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN> </DIV><BR></BODY></HTML>