It is known that the Wolff-Parkinson-White syndrome （WPW） may either mimic myocardial infarction （MI） or mask the ECG changes of MI. Thus, the diagnosis of MI coexisting with WPW is frequently difficult. Furthermo...It is known that the Wolff-Parkinson-White syndrome （WPW） may either mimic myocardial infarction （MI） or mask the ECG changes of MI. Thus, the diagnosis of MI coexisting with WPW is frequently difficult. Furthermore, patients with WPW occurring acute MI may be life threat- ening. Therefore, early recognition and correct treatment allows rapid restoration of normal sinus rhythm and may decrease morbidity and mortality.展开更多
Seventy patients with left atrioventricular accessory pathways and paroxysmal supraventricular tachycardia(PSVT) underwent radiofrequency catheter ablation(RFCA). The success rate was 94. 3%. Among these patients,26 h...Seventy patients with left atrioventricular accessory pathways and paroxysmal supraventricular tachycardia(PSVT) underwent radiofrequency catheter ablation(RFCA). The success rate was 94. 3%. Among these patients,26 had manifest preexcitation syndrome, and 44 had concealed preexcitation. Eighteen patients with concealed preexcitation underwent coronary sinus (CS) pacing, and delta wave appeared in 15. The keys to successful RFCA were correct positioning of the radiofrequency(RF) catheter tip, A/V amplitude ratio, AV interval (in sinus rhythm) and VA interval(during SVT or ventricular pacing). After 1～14 months of follow-up. two patients had supraventricular tachycardia(SVT) recurrence.展开更多
文摘It is known that the Wolff-Parkinson-White syndrome （WPW） may either mimic myocardial infarction （MI） or mask the ECG changes of MI. Thus, the diagnosis of MI coexisting with WPW is frequently difficult. Furthermore, patients with WPW occurring acute MI may be life threat- ening. Therefore, early recognition and correct treatment allows rapid restoration of normal sinus rhythm and may decrease morbidity and mortality.
文摘Seventy patients with left atrioventricular accessory pathways and paroxysmal supraventricular tachycardia(PSVT) underwent radiofrequency catheter ablation(RFCA). The success rate was 94. 3%. Among these patients,26 had manifest preexcitation syndrome, and 44 had concealed preexcitation. Eighteen patients with concealed preexcitation underwent coronary sinus (CS) pacing, and delta wave appeared in 15. The keys to successful RFCA were correct positioning of the radiofrequency(RF) catheter tip, A/V amplitude ratio, AV interval (in sinus rhythm) and VA interval(during SVT or ventricular pacing). After 1～14 months of follow-up. two patients had supraventricular tachycardia(SVT) recurrence.
