Comment on

• Percutaneous left atrial appendage occlusion for stroke prophylaxis in nonvalvular atrial fibrillation: a systematic review and analysis of observational studies.

  Bajaj NS, Parashar A, Agarwal S, Sodhi N, Poddar KL, Garg A, Tuzcu EM, Kapadia SR. Bajaj NS, et al. JACC Cardiovasc Interv. 2014 Mar;7(3):296-304. doi: 10.1016/j.jcin.2013.11.010. JACC Cardiovasc Interv. 2014. PMID: 24650403
• Left atrial appendage occlusion devices versus pharmacological agents for stroke prevention in atrial fibrillation: testing the noninferiority margins.

  Messori A, Fadda V, Maratea D, Trippoli S. Messori A, et al. JACC Cardiovasc Interv. 2014 Aug;7(8):942-3. doi: 10.1016/j.jcin.2014.04.008. JACC Cardiovasc Interv. 2014. PMID: 25147042 No abstract available.