title: Atrial macroreentry in congenital heart disease.
abstract: Macroreentrant atrial tachycardia is a common complication following surgery for congenital heart disease (CHD), and is often highly symptomatic with potentially significant hamodynamic consequences. Medical management is often unsuccessful, requiring the use of invasive procedures. Cavotricuspid isthmus dependent flutter is the most common circuit but atypical circuits also exist, involving sites of surgical intervention or areas of scar related to abnormal hemodynamics. Ablation can be technically challenging, due to complex anatomy, and difficulty with catheter stability. A thorough assessment of the patients status and pre-catheter ablation planning is critical to successfully managing these patients.
authors.forename: Darragh J
authors.initials: DJ
authors.lastname: Twomey
authors.forename: Prashanthan
authors.initials: P
authors.lastname: Sanders
authors.affiliation: Centre for Heart Rhythm Disorders, Level 5, McEwin Building, Royal Adelaide Hospital, North Terrace, Adelaide, SA 5000, Australia. kurt.roberts-thomson@adelaide.edu.au.
authors.forename: Kurt C
authors.initials: KC
authors.lastname: Roberts-Thomson
mesh_terms: D017115:Catheter Ablation / Q000379:methods; D006325:Heart Atria / Q000503:physiopathology / Q000601:surgery*; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D010138:Pacemaker, Artificial; D016896:Treatment Outcome