Table 1. Intraprocedural Complications Reported in the PARTNER Database (N = 527).

Failure to implant: Secondary to superior motion of balloon during BAV in setting of large sigmoid septum	1 (0.2%)
Balloon aortic valvuloplasty complications Severe aortic regurgitation: stuck or avulsed valve Aortic trauma	3 (0.6%)
Acute hemodynamic compromise LV collapse (expired) RV standstill (expired)	Left ventricle = 5 (1%) Right ventricle = 1 (0.2%)
Malposition Requiring surgical bailout (too low) or valve-in-valve procedure Embolization: Into aorta: due to loss of pacing capture (n = 1) Into left ventricle (n = 1)	Surgical bail-out = 2 (0.4%) Valve-in-valve = 2 (0.4%)
Aortic complications Aortic dissection (proximal) caused by embolization of first valve Aortic annular rupture Descending aortic rupture Periaortic hematoma With RCA compression With no hemodynamic consequence	Dissection 2 (0.4%) Annular rupture = 3 (0.6%) Periaortic hematoma = 3 (0.6%) Descending aorta rupture = 1 (0.2%)
Significant aortic regurgitation Severe central AR Pst-BAV Post-THV (malposition, stuck cusp) Severe paravalvular AR Treated with post-dilation Treated with valve-in-valve procedure (n = 5)	Severe central AR in THV = 2 (0.4%) BAV complication = 3 (0.6%) Valve-in-valve procedure = 5 (1%)
Bleeding/pericardial effusion Post transapical TAVR At cannulation site Adjacent to cannulation site Hemorrhagic pleural effusion (requiring pleurodesis) Pacemaker perforation LV or RV tear Post-BAV after chest compressions	Apical bleeding = 2 (0.4%) RV cannulated = 1 (0.2%) Pacemaker = 2 (0.4%) LV perforation = 3 (0.6%) BAV CPR = 1 (0.2%)
Fistulas Aorta-to-right atrium fistula Membranous VSD	3 (0.6%)
Coronary occlusion RCA (due to periaortic hematoma) Left main occlusion Post-transapical cannulation (distal LAD)	3 (0.6%)
Mitral valve regurgitation (acute) Mitral valve cusp perforation Wire entanglement	1 (0.2%)
Total	49 (9.3%)

Values are n (%).

AR = aortic regurgitation; BAV = balloon aortic valvuloplasty; CPR = cardiopulmonary resuscitation; LAD = left anterior descending coronary artery; LV = left ventricular; PARTNER = Placement of Aortic Transcatheter Valves; RCA = right coronary artery; RV = right ventricular; TAVR = transcatheter aortic valve replacement; THV = transcatheter heart valve; VSD = ventricular septal defect.