RESUMO
Drug therapy is mostly employed in the management of supraventricular tachycardias [SVTs]. However, radiofrequency catheter ablation has been found to be highly effective and safe in the treatment of SVTs. The current study is aimed at sharing our experience of 320 patients who presented with SVTs, and were treated with radiofrequency catheter ablation. This descriptive study was carried out in the Cardiac Electrophysiology Laboratory of Lady Reading Hospital, Peshawar from October 2006 to December 2009. Standard 4-wire electrophysiological study was carried out to identify the mechanism of SVT in 320 consecutive patients. Radiofrequency catheter ablation was used to interrupt the tachycardia circuit. Out of a total 320 patients who underwent electrophysiologic study, 168 were found to have atrioventricular nodal re-entry as underlying mechanism; 121 patients were having accessory pathway responsible for re-entry [of these 95 presented with orthodromic reciprocating tachycardia and 26 as antidromic reciprocating tachycardia]; 19 patients were having focal atrial tachycardia, 4 atrial fibrillation and 8 atrial flutter as the underlying cause for SVT. Radiofrequency catheter ablation was used with an overall success of 94% and a complication risk of complete AV block in 0.3% and recurrence rate of 3%. Radiofrequency catheter ablation is safe and highly effective mode of treatment of SVTs
RESUMO
To determine the frequency and demographic features of subjects with Brugada-Type ECG pattern in apparently healthy young population. Cross sectional descriptive study. This study was conducted at School of Nursing Hayatabad Medical Complex, Public Health School, Post Graduate College of Nursing, Qurtaba College, Brain's Post Graduate College and Gandhara Institute of Science and Technology Hayatabad Peshawar from June 2006 to May 2007. A total of one thousand one hundred [1100] subjects, 712 males and 388 females, were included in the study. A prospective analysis of the eleven hundred electrocardiograms [ECG] of healthy young subjects in the above institutions were included in this study. Brugada-Type ECG pattern frequency was 0.8% [nine out of one thousand one hundred healthy subjects]. Five cases [0.45%] were observed between 16 to 20 years of age and four cases [0.36%] were observed in 21 years and above. Out of total of nine cases of Brugada-Type ECG pattern [Brugada Sign], seven were males [0.6%] and two were females [0.2%]. Frequency of Brugada-Type ECG pattern was 0.8% in the apparently healthy young students in Hayatabad Peshawar