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Table 2 Operative data. MS; mitral stenosis, MVR; mitral valve replacement, CPB; cardiopulmonary bypass, IABP; intra-aortic balloon pump, COP; cardiac output

From: Mitral valve replacement in mitral stenosis; the problem of small left ventricle

Operative dataSmall LV group (N = 86)Normal or dilated LV group (N = 98)P-value
Pathology of MS  0.76
 Rheumatic84 (98%)95 (97%) 
 Degenerative2 (2%)3 (3%) 
Techniques of MVR  0.50
 Full median sternotomy35 (41%)36 (37%) 
 Lower ministernotomy15 (17%)18 (18%) 
 Right anterolateral minithoracotomy36 (42%)44 (45%) 
Sizes of mitral prostheses (mm)  0.50
 2521 
 278089 
 2948 
Intra-operative time parameters (min)
 Total operative time219.25 ± 19.86213.70 ± 22.120.07
 CPB time85.67 ± 7.7283.43 ± 8.060.06
 Cross-clamp time67.80 ± 10.2369.37 ± 9.210.27
Need for inotropic support80 (93%)60 (45%)0.01
Need for IABP due to low COP syndrome6 (7%)1 (1%)0.03