Table 3

Prevalences of different subtypes of severe AS in patients with low and normal SAC at the preoperative echocardiogram

Pre-operative flow category at restLow SAC (n=153)Normal SAC (n=297)
Normal flow low gradient (%)15.736.7
Normal flow high gradient (%)17.657.6
Low flow low gradient (%)31.42.0
Low flow high gradient (%)35.33.7
  • P<0.001 between low and normal SAC groups.