Seventeen-millimeter St. Jude Medical Regent valve in patients with small aortic annulus: dose moderate prosthesis-patient mismatch matter?

Table 3 Echocardiographic preoperative and post-operative data

Variables	Overall	Non-PPM	Moderate PPM	p value*
	(n = 103)	(n = 58)	(n = 45)
Preoperative data
Peak TVG (mmHg)	115.2 ± 38.7	121.4 ± 36.9	107.2 ± 31.8	0.362
Mean TVG (mmHg)	68.1 ± 21.9	71.2 ± 18.79	64.1 ± 26.8	0.381
LVMI (g/m²)	196.1 ± 44.3	201.7 ± 54.6	188.8 ± 68.4	0.154
EOAI (cm²/m²)	0.44 ± 0.18	0.42 ± 0.16	0.47 ± 0.08	0.631
Ejection fraction (%)	58.4 ± 11.9	59.8 ± 12.6	56.6 ± 9.9	0.184
Postoperative (at discharge) data
Peak TVG (mmHg)	^a31.8 ± 12.1	^a28.7 ± 13.4	^a35.8 ± 16.1	0.398
Mean TVG (mmHg)	^a17.2 ± 5.98	^a16.3 ± 4.69	^a18.4 ± 7.9	0.691
LVMI (g/m²)	170.8 ± 48.9	167.1 ± 39.1	175.6 ± 54.3	0.437
EOAI (cm²/m²)	^a0.91 ± 0.21	^a1.01 ± 0.13	^a0.78 ± 0.09	<0.01
Ejection fraction (%)	56.9 ± 15.4	58.1 ± 13.4	55.3 ± 10.9	0.697
Follow- up data
Peak TVG (mmHg)	^b32.3 ± 8.91	^b29.6 ± 7.4	^b35.1 ± 11.4	0.412
Mean TVG (mmHg)	^b17.9 ± 6.79	^b16.8 ± 5.14	^b19.3 ± 8.16	0.689
LVMI (g/m²)	^b118.9 ± 30.8	^b117.1 ± 26.1	^b121.2 ± 33.8	0.186
EOAI (cm²/m²)	^b0.96 ± 0.18	^b0.99 ± 0.21	^b0.92 ± 0.16	0.781
Ejection fraction (%)	60.1 ± 6.5	61.2 ± 7.1	58.7 ± 10.3	0.336
Reduction rate (%): preoperative to follow- up
Peak TVG (%)	72.0 ± 12.6	75.6 ± 9.9	67.3 ± 15.9	0.131
Mean TVG (%)	73.7 ± 8.9	76.4 ± 13.1	69.8 ± 12.5	0.152
LVMI (%)	39.4 ± 20.9	41.9 ± 18.4	35.8 ± 19.8	0.109

TVG, transvalvular gradients; LVMI, left ventricular mass index; other abbreviations as in Tables 1 and 2. *Data were compared between the non-PPM versus the moderate PPM; ^a P < 0.05 for postoperative (at discharge) data versus preoperative data; ^b P < 0.05 for follow-up data versus preoperative data.

ISSN: 1749-8090