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Table 2 Hemodynamic data at rest and peak stress during dobutamine stress echocardiography

From: Stress echocardiographic assessment of mitral valve function repaired using rough-zone trimming

Variable AML (n = 10) PML (n = 4) Bileaflet (n = 4) Control (n = 10)
Rest Stress p Rest Stress p Rest Stress p Rest Stress p
Mitral valve area (cm2) 2.8 ± 0.4 3.4 ± 0.3 0.0005 2.8 ± 0.3 3.2 ± 0.3 0.0010 2.5 ± 0.1 2.9 ± 0.1 0.0220 4.1 ± 0.4 5.1 ± 0.5 0.0001
MVmaxPG (mmHg) 9.2 ± 3.0 16.3 ± 6.0 0.0079 12.0 ± 2.5 22.3 ± 5.0 0.0077 9.3 ± 4.2 17.5 ± 4.7 0.0071 3.8 ± 0.9 9.4 ± 3.7 0.0003
MVmeanPG (mmHg) 3.3 ± 1.1 7.4 ± 4.1 0.0026 5.5 ± 1.0 10.5 ± 2.4 0.0058 3.5 ± 1.7 8.8 ± 3.1 0.0146 1.1 ± 0.3 3.6 ± 0.7 0.0222
sPAP (mmHg) 25.7 ± 4.7 49.1 ± 4.1 0.0000 30 ± 1.4 47.0 ± 1.4 a 28.3 ± 1.9 44.8 ± 2.1 0.0034 26.9 ± 2.3 43.9 ± 7.6 0.0001
MR grade (mean) 0.1 ± 0.3 0.1 ± 0.3 - 0 0 -. 0.3 ± 0.5 0 0.3910 0 0 -
HR (beats/min) 73 ± 16 107 ± 24 0.0002 76 ± 2 127 ± 25 0.0225 68 ± 3 111 ± 19 0.0138 64 ± 11 115 ± 16 0.0000
sBP (mmHg) 115 ± 13 150 ± 20 0.0008 127 ± 14.0 143.3 ± 26.5 0.1495 115 ± 14 145 ± 33 0.1991 104 ± 8 153 ± 18 0.0000
dBP (mmHg) 69 ± 13 71 ± 13 0.5426 76.3 ± 9.2 71 ± 6.9 0.1261 69 ± 16 75 ± 17 0.6440 53 ± 9 65 ± 9 0.0069
CO (L/min) 4.4 ± 1.0 7.9 ± 1.4 0.0000 5.0 ± 0.4 9.6 ± 2.5 0.0234 4.2 ± 0.3 7.5 ± 1.0 0.0023 3.9 ± 0.7 9.2 ± 1.4 0.0000
EF (%) 64.7 ± 2.9 81.9 ± 2.5 0.0000 61.9 ± 6.7 81.9 ± 4.5 0.0006 62.8 ± 1.5 83.9 ± 4.7 0.0045 62.6 ± 3.6 82.0 ± 2.7 0.0000
LVEDV (ml) 92.5. ± 10.3 91.3 ± 8.0 0.5931 107.9 ± 19.6 89.4 ± 13.5 0.0262 98.3 ± 10.7 82.7 ± 16.2 0.0323 99.6 ± 13.4 99.0 ± 14.0 0.8726
LVESV (ml) 31.7 ± 4.7 16.6 ± 3.4 0.0000 42.3 ± 15.0 15.0 ± 4.6 0.0195 36.5 ± 3.7 13.9 ± 5.7 0.0015 38.0 ± 6.7 18.1 ± 5.4 0.0000
  1. AML, anterior mitral leaflet; CO, cardiac output; dBP, diastolic blood pressure; EF, ejection fraction; LVEDV, left ventricular end diastolic volume; LVESV, left ventricular end systolic volume; MR, mitral valve regurgitation; MVmaxPG, mitral valve maximum pressure gradient; MVmeanPG, mitral valve mean pressure gradient; p, p value; PML, posterior mitral leaflet; sBP, systolic blood pressure; sPAP, systolic pulmonary artery pressure. aPML sPAP data were not statistically analyzed due to small sample size.