Failure to account for many biological and procedural variables and for the constantly
evolving practice of surgery and perioperative medicine likely contributes to the modest …

Outcome analysis of many surgical procedures has become increasingly important to
surgeons, institutions, and the public. Because there may be wide differences in case mix …

Risk models have been utilized by The Society of Thoracic Surgeons (STS) for nearly 2
decades to adjust cardiac surgery outcomes for preoperative patient characteristics and …

Differences in medical outcomes may result from disease severity, treatment effectiveness,
or chance. Because most outcome studies are observational rather than randomized, risk …

Objective: To study the relationship between predicted and actual mortality in a cardiac
surgical practice and to determine whether there is a consistent relationship across risk …

Risk stratification models fail to predict hospital costs of cardiac surgery patients Page 1 K.
Hekmat A. Raabe A. Kroener U. Fischer M. Suedkamp H.-J. Geissler RH Schwinger S …

Objective To compare the performance of several risk-scoring models to predict surgical
mortality following open heart surgery. Design A prospective observational study. Setting …

Conclusions There is a significant variation in patients risk profile and surgical strategy both
within Europe and across the Atlantic. Therefore, it is not appropriate to assess the quality of …

This study was authorized by the Department of Veterans Affairs to improve the quality
assurance of cardiac surgery by assessing preoperative risk factors and relating them to …

Objectives: Identify risk factors for perioperative adverse cardiac events. Summarize
preoperative cardiac risk using the American College of Cardiology/American Heart …