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Table 2 Postoperative occurrence of mitral regurgitation and assessment of NYHA class

From: Mitral valve repair, how to make volume not matter; techniques, tendencies, and outcomes, a single center experience

Variable No resection n = 136 Resection n = 52 P value
NYHA functional class   0.797
 I 115 (84.5) 41 (78.8)  
 II 16 (11.7) 9 (17.3)  
 III 3 (2.2) 2 (3.8)  
 IV 2 (1.5) 0  
Mitral valve regurgitation    0.267
 None/Trace 76 (56.0) 22 (42.3)  
 Mild 48 (35.3) 22 (42.3)  
 Moderate 9 (6.6) 6 (11.5)  
 Severe 3 (2.1) 2 (3.8)  
  1. Categorical data are expressed as number (%)
  2. NYHA New York Hear Association