Left atrial appendage angiography is associated with the incidence and number of magnetic resonance imaging–detected brain lesions after percutaneous catheter-based left atrial appendage closure

Abstract

MRI-detected ABLs are commonly observed after percutaneous LAAC. The number of LAA angiographies is significantly associated with the number of ABLs; however, the clinical implications of ABL have yet to be determined.

Usable implantation depth for watchman left atrial appendage occlusion is greater with appendage angiography than transesophageal echocardiography

“…It is also possible that the additional information gained by LAA angiography results in improved clinical outcomes such as need for device recapture and redeployment, completeness of seal, device embolization, perforation because of fewer deployments, strokes, and time with catheters in the left atrium and LAA. Weighing these potential benefits against the risks of LAA angiography will require future studies to address these questions …”

“…Weighing these potential benefits against the risks of LAA angiography will require future studies to address these questions. 15…”

Long‐term follow up of 3 T MRI‐detected brain lesions after percutaneous catheter‐based left atrial appendage closure

“…The PROTECT AF and PREVAIL trails have shown a significant reduction in bleeding events, but the same risk of stroke after percutaneous LAA occlusion as compared to warfarin [7,8]. Several studies have shown that acute brain lesions (ABL) can occur after LAAC [9][10][11]. The incidence has been described to be between 4.8% and 5.2% [9][10][11].…”

“…Several studies have shown that acute brain lesions (ABL) can occur after LAAC [9][10][11]. The incidence has been described to be between 4.8% and 5.2% [9][10][11]. The clinical implications of ABLs is not fully understood, as the long-term clinical course of ABLs during followup has varied.…”

Subclinical brain lesions after left atrial appendage occlusion: Does silence mean reassurance?

“…Bellman et al, in the issue of the Journal , have added to their prior short‐term study of silent brain lesions with a follow‐up MRI at 3 months in their cohort with abnormal postprocedural scans. In their original research, 12/25 (48%) had acute brain lesions with 3/12 (25%) of these being both DWI & FLAIR positive on MRI within 24 hr.…”