STS National Database
STS CANADIAN CARDIAC SURGERY DATABASE
1997 MITRAL VALVE REPLACEMENT PATIENTS
UNIVARIATE ANALYSIS: POSTOPERATIVE VARIABLES
PATIENT POPULATION:
OPERATIVE SURVIVORS:
OPERATIVE MORTALITIES:		 171
164 ( 95.91% )
7 ( 4.09% )
RISK VARIABLE Count % of Pop. Mortality w/ Variable Present Mortality w/ Variable Absent Relative Risk c2 p-Value
Red Blood Cells Used 72 42.11% 4/72 5.56% 3/99 3.03% 1.83 0.4106
Fresh Frozen Plasma Used 36 21.05% 3/36 8.33% 4/135 2.96% 2.81 0.1485
Cryoprecipitate Used 7 4.09% 1/7 14.29% 6/164 3.66% 3.90 0.1646
Platelets Used 19 11.11% 3/19 15.79% 4/152 2.63% 6.00 0.0064
 
Postop IABP 2 1.17% 0/2 0.00% 7/169 4.14% 0.00 0.7688

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© 1999 The Society of Thoracic Surgeons.