Key result
Outpatient electrocardiographic assessment for tall P-waves in inferior leads before catheter ablation can predict coexisting ectopic rhythm and AF triggers in the superior vena cava.
Why the study?
When an ectopic rhythm and AF trigger coexist within the SVC, the intra-SVC ectopic rhythm complicates the pre-SVCI search for the sinus node to prevent injury.
Case Report (n=1)
Tall P-waves in inferior leads on outpatient ECG may predict coexisting ectopic rhythm and AF triggers in the SVC, helping to prevent sinus node injury during isolation.
Suppression of atrial fibrillation (AF) arising within the superior vena cava (SVC) requires SVC electric isolation (SVCI) without sinus node (SN) injury. If an ectopic rhythm and AF trigger coexist within the SVC, the intra-SVC ectopic rhythm complicates the pre-SVCI search for the SN. This coexistence is without precedent; however, it is important to carefully locate the SN to prevent injury during SVCI. This case shows a paroxysmal AF with both phenomena coexisting in the SVC. Moreover, outpatient electrocardiographic assessment for tall P-waves in inferior leads before catheter ablation could predict these phenomena and enable safer SVCI.
No takes yet. Share an insight, caveat, or question.
Honda et al. (2022) conducted a case report in Paroxysmal atrial fibrillation (n=1). Electrocardiographic assessment for tall P-waves in inferior leads was evaluated. Outpatient electrocardiographic assessment for tall P-waves in inferior leads before catheter ablation can predict coexisting ectopic rhythm and AF triggers in the superior vena cava.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: