Key result
Atrial wall thickness correlates with low voltage areas, and assessing atrial myocardial fibrosis by CT or MRI combined with voltage mapping might help reduce atrial fibrillation recurrence.
Why the study?
Does voltage-guided substrate modification targeting low-voltage areas in addition to PVI improve freedom from AF recurrences compared to conventional PVI only in patients with atrial fibrillation?
Does voltage-guided substrate modification targeting low-voltage areas in addition to PVI improve freedom from AF recurrences compared to conventional PVI only in patients with atrial fibrillation?
Targeting low-voltage areas in addition to pulmonary vein isolation, potentially guided by CT or MRI assessment of atrial wall thickness, may improve freedom from atrial fibrillation recurrence.
The presence of a low-voltage areas (LVAs) is a major feature of the progression of atrial fibrillation. Typically, the LVA is determined by invasive left atrial voltage mapping. In addition to pulmonary vein electrical isolation, Voltage-guided substrate modification by targeting LVAs in addition to PVI has been shown to be superior to conventional PVI "only" approaches regarding freedom from AF recurrences after ablation. Recent studies have found Atrial wall thickness correlates with low voltage areas, and the degree of atrial myocardial fibrosis can be better assessed by CT or MRI in combination with voltage mapping, which might help reduce the recurrence of AF after catheter ablation.
No takes yet. Share an insight, caveat, or question.
Liu et al. (2022) conducted a review in Atrial Fibrillation. Voltage mapping combined with CT or MRI was evaluated. Atrial wall thickness correlates with low voltage areas, and assessing atrial myocardial fibrosis by CT or MRI combined with voltage mapping might help reduce atrial fibrillation recurrence.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: