Radiofrequency ablation of supraventricular arrhythmias after orthotopic heart transplantation: Long‐term follow‐up of a single‐center experience

Background Supraventricular arrhythmias (SVAs), commonly managed with radiofrequency ablation (RFA), may occur after orthotopic heart transplantation (OHT). Methods We retrospectively assessed 514 consecutive patients (pts.) undergoing OHT between January 1990 and July 2016 in a single‐center. Patie...

Full description

Saved in:
Bibliographic Details
Published inClinical transplantation Vol. 35; no. 2; pp. e14165 - n/a
Main Authors Renedo, María F., González, José L., Giunta, Gustavo A., Giordanino, Elián F., Ameri, Aldana S., Mysuta, Mauricio A., Ramirez, Debora A., Favaloro, Liliana E., Favaloro, Roberto R., Absi, Daniel O., Galizio, Néstor O., Bertolotti, Alejandro M.
Format Journal Article
LanguageEnglish
Published Denmark 01.02.2021
Subjects
heart transplant
radiofrequency ablation
supraventricular arrhythmia
radiofrequency ablation
supraventricular arrhythmia
heart transplant
Online AccessGet full text

Cover

More Information
Summary:Background Supraventricular arrhythmias (SVAs), commonly managed with radiofrequency ablation (RFA), may occur after orthotopic heart transplantation (OHT). Methods We retrospectively assessed 514 consecutive patients (pts.) undergoing OHT between January 1990 and July 2016 in a single‐center. Patients with SVAs managed with RFA were included. Mechanisms of genesis of SVAs, association with surgical techniques and outcomes, were analyzed. Results Of 514 pts undergoing OHT, 53% (272 pts.) were managed with bicaval (BC) technique and 47% (242 pts.) with biatrial (BA) technique. Mean follow‐up 10 ± 8.4 years. Nine pts. (1.7%) developed SVA requiring RFA. The BC technique was performed in 4 pts., 3 pts. presented cavotricuspid isthmus‐dependent atrial flutter (CTI AFL), and 1 pt. double loop AFL. Five pts. were managed with BA technique, 4 pts. presented CTI AFL, and 1 pt. atrial tachycardia (AT). Mean time between OHT and SVA occurrence was 6.6 ± 5.5 years. The procedure was successful in 89% (8 pts.). Arrhythmia recurrence was seen in 3 pts (37%), all with BA technique. Conclusion Supraventricular arrhythmias in heart transplantation may be associated with the surgical scar. Identifying the mechanism is vital to choose the appropriate treatment with radiofrequency ablation.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0902-0063
1399-0012
DOI:10.1111/ctr.14165