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Table 1 Preoperative patient characteristics

From: Should bioprostheses be considered the valve of choice for dialysis-dependent patients?

Variable Group B (n = 38) Group M(n = 35) P-value
Clinical demographics    
 Age (y) 55 ± 8 53 ± 9 NS
 Female sex 16 (42.1%) 15(42.9%) NS
 Mean body mass index (kg/m2) 24 ± 5 26 ± 6 NS
Risk factors    
 Hypertension 34(89.5%) 32(91.4%) NS
 Diabetes 15(39.5%) 12(34.3%) NS
 Obstructive pulmonary disease 4(10.5%) 3(8.6%) NS
 Previous gastrointestinal bleed 7(18.4%) 6(17.1%) NS
Peripheral vascular disease 3(7.9%) 2(5.7%) NS
 Mean preoperative creatinine (mg/dl) 4.5 ± 1.2 4.8 ± 1.4 NS
Cardiac profile    
 Previous myocardial infarction 2(5.3%) 2(5.7%) NS
 Previous PCI 5(13.2%) 4(11.4%) NS
 Cardiac arrhythmia 27(71.1%) 31(88.6%) <0.05
 Congestive heart failure (NYHA III-IV) 12(31.6%) 11(31.4%) NS
 Mean ejection fraction 0.50 ± 0.12 0.49 ± 0.14 NS
 Poor ejection fraction (<0.35) 4(10.5%) 4(11.4%) NS
 Preoperative endocarditis 6(15.8%) 5(14.3%) NS
 Mean EuroSCORE (%) 32 ± 23 31 ± 22 NS
  1. Group B, Biprosthesis valve; Group M, Mechanical valve; NS, not significant.