Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of Experience
Background: Radiofrequency catheter ablation (RFCA) has been introduced as the treatment of choice for supraventricular tachycardia. The aim of this study was to evaluate the success rate as well as procedural and in-hospital complications of RFCA for the treatment of atrioventricular nodal reentran...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tehran University of Medical Sciences
2010-05-01
|
| Series: | Journal of Tehran University Heart Center |
| Subjects: | |
| Online Access: | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/15535.pdf&manuscript_id=15535 |
| _version_ | 1828809214006394880 |
|---|---|
| author | Mansour Moghaddam Fatemeh Ghazanchai Ali Vasheghani Farahani Ali Kasemisaeid Gholamreza Davoodi Ahmad Yaminisharif |
| author_facet | Mansour Moghaddam Fatemeh Ghazanchai Ali Vasheghani Farahani Ali Kasemisaeid Gholamreza Davoodi Ahmad Yaminisharif |
| author_sort | Mansour Moghaddam |
| collection | DOAJ |
| description | Background: Radiofrequency catheter ablation (RFCA) has been introduced as the treatment of choice for supraventricular tachycardia. The aim of this study was to evaluate the success rate as well as procedural and in-hospital complications of RFCA for the treatment of atrioventricular nodal reentrant tachycardia (AVNRT).Methods: Between March 1995 and February 2009, 544 patients (75.9% female, age: 48.89 ± 13.19 years) underwent 548 RFCAs for AVNRT in two large university hospitals. Echocardiography was performed for all the patients before and after the procedure. Electrocardiograms were recorded on digital multichannel systems (EP-Med) or Bard EP system. Anticoagulation was initiated during the procedure.Results: From the 548 patients, 36 had associated arrhythmias, atrial flutter (4%), atrial fibrillation (0.7%), concurrent atrial fibrillation and atrial flutter (0.7%), and concealed atrioventricular pathway (0.4%). The overall success rate was 99.6%. There were 21 (3.9%) transient III-degree AV blocks (up to a few seconds) and 4 (0.7%) prolonged II- or III-degree AV blocks, 2 (0.25%) of which required permanent pacemaker insertion, 3(0.5%) deep vein thrombosis, and one (0.2%) arteriovenous fistula following the procedure. No difference was observed in the echocardiography parameters before and after the ablation.Conclusion: RFCA had a high success rate. The complication rate was generally low and in the above-mentioned centers it was similar to those in other large centers worldwide. Echocardiography showed no difference before and after the ablation. The results from this study showed that the risk of permanent II or III-degree AV block in patients undergoing RFCA was low and deep vein thrombosis was the second important complication. There was no risk of life-threatening complications. |
| first_indexed | 2024-12-12T08:52:29Z |
| format | Article |
| id | doaj.art-0becd8ac339e4da4b8463632e5497222 |
| institution | Directory Open Access Journal |
| issn | 1735-8620 |
| language | English |
| last_indexed | 2024-12-12T08:52:29Z |
| publishDate | 2010-05-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Journal of Tehran University Heart Center |
| spelling | doaj.art-0becd8ac339e4da4b8463632e54972222022-12-22T00:30:08ZengTehran University of Medical SciencesJournal of Tehran University Heart Center1735-86202010-05-01528791Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of ExperienceMansour MoghaddamFatemeh GhazanchaiAli Vasheghani FarahaniAli KasemisaeidGholamreza DavoodiAhmad YaminisharifBackground: Radiofrequency catheter ablation (RFCA) has been introduced as the treatment of choice for supraventricular tachycardia. The aim of this study was to evaluate the success rate as well as procedural and in-hospital complications of RFCA for the treatment of atrioventricular nodal reentrant tachycardia (AVNRT).Methods: Between March 1995 and February 2009, 544 patients (75.9% female, age: 48.89 ± 13.19 years) underwent 548 RFCAs for AVNRT in two large university hospitals. Echocardiography was performed for all the patients before and after the procedure. Electrocardiograms were recorded on digital multichannel systems (EP-Med) or Bard EP system. Anticoagulation was initiated during the procedure.Results: From the 548 patients, 36 had associated arrhythmias, atrial flutter (4%), atrial fibrillation (0.7%), concurrent atrial fibrillation and atrial flutter (0.7%), and concealed atrioventricular pathway (0.4%). The overall success rate was 99.6%. There were 21 (3.9%) transient III-degree AV blocks (up to a few seconds) and 4 (0.7%) prolonged II- or III-degree AV blocks, 2 (0.25%) of which required permanent pacemaker insertion, 3(0.5%) deep vein thrombosis, and one (0.2%) arteriovenous fistula following the procedure. No difference was observed in the echocardiography parameters before and after the ablation.Conclusion: RFCA had a high success rate. The complication rate was generally low and in the above-mentioned centers it was similar to those in other large centers worldwide. Echocardiography showed no difference before and after the ablation. The results from this study showed that the risk of permanent II or III-degree AV block in patients undergoing RFCA was low and deep vein thrombosis was the second important complication. There was no risk of life-threatening complications.http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/15535.pdf&manuscript_id=15535Tachycardia- Atrioventricular Nodal ReentryCatheter AblationElectrophysiological Techniques- Cardiac |
| spellingShingle | Mansour Moghaddam Fatemeh Ghazanchai Ali Vasheghani Farahani Ali Kasemisaeid Gholamreza Davoodi Ahmad Yaminisharif Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of Experience Journal of Tehran University Heart Center Tachycardia- Atrioventricular Nodal Reentry Catheter Ablation Electrophysiological Techniques- Cardiac |
| title | Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of Experience |
| title_full | Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of Experience |
| title_fullStr | Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of Experience |
| title_full_unstemmed | Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of Experience |
| title_short | Radiofrequency Catheter Ablation of Atrioventricular Nodal Reentrant Tachycardia: Success Rates and Complications during 14 Years of Experience |
| title_sort | radiofrequency catheter ablation of atrioventricular nodal reentrant tachycardia success rates and complications during 14 years of experience |
| topic | Tachycardia- Atrioventricular Nodal Reentry Catheter Ablation Electrophysiological Techniques- Cardiac |
| url | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/15535.pdf&manuscript_id=15535 |
| work_keys_str_mv | AT mansourmoghaddam radiofrequencycatheterablationofatrioventricularnodalreentranttachycardiasuccessratesandcomplicationsduring14yearsofexperience AT fatemehghazanchai radiofrequencycatheterablationofatrioventricularnodalreentranttachycardiasuccessratesandcomplicationsduring14yearsofexperience AT alivasheghanifarahani radiofrequencycatheterablationofatrioventricularnodalreentranttachycardiasuccessratesandcomplicationsduring14yearsofexperience AT alikasemisaeid radiofrequencycatheterablationofatrioventricularnodalreentranttachycardiasuccessratesandcomplicationsduring14yearsofexperience AT gholamrezadavoodi radiofrequencycatheterablationofatrioventricularnodalreentranttachycardiasuccessratesandcomplicationsduring14yearsofexperience AT ahmadyaminisharif radiofrequencycatheterablationofatrioventricularnodalreentranttachycardiasuccessratesandcomplicationsduring14yearsofexperience |