Table 2

Possible complications of percutaneous LAA closure

Short termLong term
Cardiac perforation*+(+)
Pericardial effusion with tamponade†+(+)
Device embolisation++
Device thrombosis++
Stroke/TIA—thromboembolism, air embolism++
Vascular complications—haematoma, bleeding, AV fistula formation+(+)
  • *Cardiac perforation: pericardial effusion resulting in surgical intervention/repair—due to transseptal puncture, or LAA closure device which can perforate the LAA±pulmonary artery (acute or after >7 days).73 ,74

  • †Pericardial effusion with tamponade: pericardial effusion resulting in percutaneous treatment/drainage or pericardial window.

  • LAA, left atrial appendage; TIA, transient ischemic attack; AV, arteriovenous.