*5.6.3 Coronary obstruction*

Symptomatic coronary obstruction following TAVR is rare but a lifethreatening complication. Multicentre registry data shows an incidence of 0.6%. It was observed more frequently with balloon expandable valve and in those with a previous surgical prosthesis [24]. Low lying coronary ostium and shallow sinus of Valsalva were anatomical factors associated with the risk for coronary obstruction [24].
