A case of atrial arrhythmia after lung transplant is presented. The key features of this case are relevant to most atypical flutters. A combination of entrainment and electroanatomic mapping can help to efficiently identify the culprit area. The target is typically a long mid-diastolic fractionated potential shown to be integral to the circuit by entrainment mapping. A micro-reentrant circuit may appear to be focal by the electroanatomic map, but entrainment techniques can still be used to localize the tachycardia.
Copyright © 2010. Published by Elsevier Inc.