Table 5.

One-year follow-up echocardiographic data comparison between two group of patients.

Item	Thoracoscopy-assisted group	Conventional group	P-value
End-systolic length of the left atrium (mm)	45.6±5.4	47.4±6.5	0.877
End-diastolic length of the left ventricle (mm)	53.4±4.3	54.2±5.5	0.923
End-systolic length of the right atrium (mm)	41.1±5.2	45.6±6.7	0.881
End-diastolic length of the right ventricle (mm)	34.4±4.1	36.9±5.1	0.867
Ejection fraction (%)	58.8±7.3	55.4±8.4	0.812
Pulmonary hypertension (mmHg)	30.2±9.9	27.5±11.2	0.654
Max MV PG (mmHg)	10.3±1.8	11.5±2.3	0.956
Mechanical valve flap	0	0
Perivalvular leakage	0	0

MV=mitral valve; PG=peak gradient