Criteria for determining the need for surgical treatment of tricuspid regurgitation during mitral valve replacement

Table 2 Pre- and postoperative cardiac data for the control and operation groups

Variable	Control group (n = 50)	Operation group^a (n = 39)
Right atrium inner diameter (mm)
Preoperative	38.92 ± 3.66	57.21 ± 3.24
2-years postoperative	38.10 ± 3.89†	48.64 ± 3.27†
Right ventricle inner diameter (mm)
Preoperative	39.12 ± 3.46	54.95 ± 3.19
2-years postoperative	37.10 ± 3.57†	46.18 ± 3.48†
Interventricular septum thickness (mm)
Preoperative	9.22 ± 1.66	8.74 ± 1.27
2-years postoperative	9.16 ± 2.00	8.82 ± 1.07
Pulmonary artery pressure (mmHg)
Preoperative	32.14 ± 1.99	57.92 ± 2.91
2-years postoperative	31.96 ± 2.40	31.46 ± 2.83†
Ejection fraction (%)
Preoperative	0.63 ± 0.09	0.63 ± 0.11
2-years postoperative	0.59 ± 0.09†	0.56 ± 0.10†

^a The operation group included patients who underwent DeVega and Kay procedures.
Data are presented as mean ± SD.
† P < 0.05, statistically significant difference between preoperative and postoperative values (paired t-test).

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