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Table 3 Changes in LV morphology and function before and after pericardial incision

From: Effect of pericardial incision on left ventricular morphology and systolic function in patients during coronary artery bypass grafting

Parameter Before pericardial incision (n = 27) After pericardial incision (n = 27) P-value
LV longitudinal diameter (mm) 71.48 ± 7.48 70.19 ± 8.00 0.20
LV mid-cavity transversal diameter (mm) 36.74 ± 3.99 41.41 ± 4.59 <0.001
LV sphericity index 1.96 ± 0.26 1.70 ± 0.19 <0.001
LV internal diameter (mm) 44.65 ± 6.06 45.10 ± 6.42 0.64
Posterior wall thickness (mm) 7.59 ± 1.06 8.13 ± 0.82 0.007
Relative wall thickness (cm) 0.34 ± 0.06 0.37 ± 0.06 0.04
Mitral E (m/s) 0.66 ± 0.20 0.61 ± 0.18 0.17
Mitral A (m/s) 0.87 ± 0.18 0.83 ± 0.17 0.18
Mitral E/A 0.81 ± 0.38 0.77 ± 0.29 0.47
Septal e’ (cm/s) 6.26 ± 2.15 6.04 ± 2.10 0.16
Lateral e’ (cm/s) 7.66 ± 2.81 7.47 ± 2.88 0.10
Mitral average E/e’ 10.38 ± 3.62 10.16 ± 3.79 0.58
Tricuspid regurgitation velocity (m/s) 1.52 ± 0.61 1.47 ± 0.59 0.43
LV end-diastolic volume (mL) 109.48 ± 35.05 110.33 ± 35.33 0.25
LV end-systolic volume (mL) 47.85 ± 22.12 49.04 ± 22.58 0.26
LV stroke volume (mL) 61.63 ± 15.06 61.30 ± 15.85 0.74
LVEF (%) 57.41 ± 6.08 56.63 ± 6.82 0.35
GLS (%) −15.86 ± 2.66 −12.39 ± 3.27 <0.001
GCS (%) −22.25 ± 4.56 −18.45 ± 5.07 <0.001
GRS (%) 18.41 ± 6.05 23.13 ± 7.32 <0.001
Apical rotation (°) 3.67 ± 1.69 1.63 ± 0.70 <0.001
Basal rotation (°) −4.14 ± 1.04 −3.08 ± 1.12 <0.001
Twist (°) 7.81 ± 2.12 4.71 ± 1.22 <0.001
  1. Data are expressed as mean ± standard deviation
  2. Abbreviations: LV left ventricular, E mitral inflow early diastolic velocity, A mitral inflow late diastolic velocity, e’ mitral annular early diastolic velocity, LVEF left ventricular ejection fraction, GLS global longitudinal strain, GCS global circumferential strain, GRS global radial strain