Mechanical

Mechanical prosthetic valves

Normal Values Mechanical Aortic Valve Art1

Valve	Type	Size (mm)	Peak gradient (mmHg)	Mean gradient (mmHg)	EOA (cm2)
ATS	Bileaflet	19	47.0 ± 12.6	25.3 ± 8	1.1 ± 0.3
		21	23.7 ± 6.8	15.9 ± 5.0	1.4 ± 0.5
		23		14.4 ± 4.9	1.7 ± 0.5
		25		11.3 ± 3.7	2.1 ± 0.7
		27		8.4 ± 3.7	2.5 ± 0.1
		29		8.0 ± 3.0	3.1 ± 0.8
		18		21.0 ± 1.8	1.2 ± 0.3
		20	21.4 ± 4.2	11.1 ± 3.5	1.3 ± 0.3
		22	18.7 ± 8.3	10.5 ± 4.5	1.7 ± 0.4
		24	15.1 ± 5.6	7.5 ± 3.1	2.0 ± 0.6
		26		6.0 ± 2.0	2.1 ± 0.4
Bjork-Shiley	Single tilting disc	21	38.9 ± 11.9	21.8 ± 3.4	1.1 ± 0.3
		23	28.8 ± 11.2	15.7 ± 5.3	1.3 ± 0.3
		25	23.7 ± 8.2	13.0 ± 5.0	1.5 ± 0.4
		27		10.0 ± 2.0	1.6 ± 0.3
Carbomedics Reduced	Bileaflet	19	43.4 ± 1.2	24.4 ± 1.2	1.2 ± 0.1
Carbomedics Standard	Bileaflet	19	38.0 ± 12.8	18.9 ± 8.3	1.0 ± 0.3
		21	26.8 ± 10.1	12.9 ± 5.4	1.5 ± 0.4
		23	22.5 ± 7.4	11.0 ± 4.6	1.4 ± 0.3
		25	19.6 ± 7.8	9.1 ± 3.5	1.8 ± 0.4
		27	17.5 ± 7.1	7.9 ± 3.2	2.2 ± 0.2
		29	9.1 ± 4.7	5.6 ± 3.0	3.2 ± 1.6
Carbomedics Tophat	Bileaflet	21	30.2 ± 10.9	14.9 ± 5.4	1.2 ± 0.3
		23	24.2 ± 7.6	12.5 ± 4.4	1.4 ± 0.4
		25		9.5 ± 2.9	1.6 ± 0.32
Edwards Duromedics	Bileaflet	21	39.0 ± 13
		23	32.0 ± 8.0
		25	26.0 ± 10.0
		27	24.0 ± 10.0
Edwards Mira	Bileaflet	19		18.2 ± 5.3	1.2 ± 0.4
		21		13.3 ± 4.3	1.6 ± 0.4
		23		14.7 ± 2.8	1.6 ± 0.6
		25		13.1 ± 3.8	1.9
MCRI On-X	Bileaflet	19	21.3 ± 10.8	11.8 ± 3.4	1.5 ± 0.2
		21	16.4 ± 5.9	9.9 ± 3.6	1.7 ± 0.4
		23	15.9 ± 6.4	8.6 ± 3.4	1.9 ± 0.6
		25	16.5 ± 10.2	6.9 ± 4.3	2.4 ± 0.6
Medtronic Advantage	Bileaflet	23		10.4 ± 3.1	2.2 ± 0.3
		25		9.0 ± 3.7	2.8 ± 0.6
		27		7.6 ± 3.6	3.3 ± 0.7
		29		6.1 ± 3.8	3.9 ±0.7
Medtronic Hall	Single tilting disc	20	34.4 ± 13.1	17.1 ± 5.3	1.2 ± 0.5
		21	26.9 ± 10.5	14.1 ± 5.9	1.1 ± 0.2
		23	26.9 ± 8.9	13.5 ± 4.8	1.4 ± 0.4
		25	17.1 ± 7.0	9.5 ± 4.3	1.5 ± 0.5
		27	18.9 ± 9.7	8.7 ± 5.6	1.9 ± 0.2
Monostrut Bjork-Shiley	Single tilting disc	19		27.4 ± 8.8
		21	27.5 ± 3.1	20.5 ± 6.2
		23	20.3 ± 0.7	17.4 ± 6.4
		25		16.1 ± 4.9
		27		11.4 ± 3.8
Omnicarbon	Single tilting disc	21	37.4 ± 12.8	20.4 ± 5.4	1.3 ± 0.5
		23	28.8 ± 9.1	17.4 ± 4.9	1.5 ± 0.3
		25	23.7 ± 8.1	13.2 ± 4.6	1.9 ± 0.5
		27	20.1 ± 4.2	12.4 ± 2.9	2.1 ± 0.4
Omniscience	Single tilting disc	21	50.8 ± 2.8	28.2 ± 2.2	0.9 ± 0.1
		23	39.8 ± 8.7	20.1 ± 5.1	1.0 ± 0.1
Sorin Bicarbon	Bileaflet	19	30.1 ± 4.5	16.7 ± 2.0	1.4 ± 0.1
		21	22.0 ± 7.1	10.0 ± 3.3	1.2 ± 0.4
		23	16.8 ± 6.1	7.7 ± 3.3	1.5 ± 0.2
		25	11.2 ± 3.1	5.6 ± 1.6	2.4 ± 0.3
St. Jude Medical Haem Plus	Bileaflet	19	28.5 ± 10.7	17.0 ± 7.8	1.9 ± 0.1
		21	16.3 ± 17.0	10.6 ± 5.1	1.8 ± 0.5
		23	16.8 ± 7.3	12.1 ± 4.2	1.7 ± 0.5
St. Jude Medical Regent	Bileaflet	19	20.6 ± 12	11.0 ± 4.9	1.6 ± 0.4
		21	15.6 ± 9.4	8.0 ± 4.8	2.0 ± 0.7
		23	12.8 ± 6.8	6.9 ± 3.5	2.3 ± 0.9
		25	11.7 ± 6.8	5.6 ± 3.2	2.5 ± 0.8
		27	7.9 ± 5.5	3.5 ± 1.7	3.6 ± 0.5
St. Jude Medical Standard	Bileaflet	19	42.0 ± 10.0	24.5 ± 5.8	1.5 ± 0.1
		21	25.7 ± 9.5	15.2 ± 5.0	1.4 ± 0.4
		23	21.8 ± 7.5	13.4 ± 5.6	1.6 ± 0.4
		25	18.9 ± 7.3	11.0 ± 5.3	1.9 ± 0.5
		27	13.7 ± 4.2	8.4 ± 3.4	2.5 ± 0.4
		29	13.5 ± 5.8	7.0 ± 1.7	2.8 ± 0.5
Starr Edwards	Caged ball	23	32.6 ± 12.8	22.0 ± 9.0	1.1 ± 0.2
		24	34.1 ± 10.3	22.1 ± 7.5	1.1 ± 0.3
		26	31.8 ± 9.0	19.7 ± 6.1
		27	30.8 ± 6.3	18.5 ± 3.7
		29	29.0 ± 9.3	16.3 ± 5.5

Normal Values Mechanical Mitral valve art

Valve	Type	Size (mm)	Peak gradient (mmHg)	Mean gradient (mmHg)	EOA (cm2)

References

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1. 1 pmid=19733789

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