Prosthesis-patient mismatch (PPM) was initially proposed by Rahimtoola and reintroduced by Pirabot. PPM is the indexed effective orifice area in relation to body surface area, cutoff value being 0.85 cm2/m2, and <0.70 cm2/m2for obese patients. PPM is considered moderate if indexed effective orifice area is 0.65-0.85 cm2/m2 and severe when <0.65 cm2/m2 Research studies on surgical prosthesis have…
Lower Mismatch Rate with the New Self-Expandable Valves
Prosthesis mismatch (PPM) was introduced by Rahimtoola in 1978 and happens when the effective orifice area of a heart valve prosthesis is too small in relation to patient body size. Surgical valves have been well documented, but there is little information on percutaneous valves. The study looked at 757 patients undergoing TAVR with pre and post procedural eco-Doppler…