title: Are frailty scales better than anesthesia or surgical scales to determine risk in cardiac surgery?
abstract: BACKGROUND
  In the last year there has been an increasing interest for using frailty scales for risk stratification of elderly patients undergoing major surgery. We planned to compare two frailty scales with risk scales already used in cardiac surgery, to study which of these scores have better prognostic value predicting postoperative outcome in open heart surgery.
  
  
  METHODS
  We conducted a prospective clinical trial, including 57 patients over 65 years. We calculated Cardiac Anesthesia Risk Evaluation score, EuroScore II, Clinical Frailty Scale, Edmonton Frail Scale for each patient and followed the postoperative complications, length of mechanical ventilation, length of stay in the intensive care unit and hospital, and in-hospital death related to these risk and frailty scores.
  
  
  RESULTS
  Postoperative complications occurred in 25 patients (43.9%), while four patients (7%) died with multiple organ failure. All scales had low predictability for postoperative complications, but for length of mechanical ventilation we obtained positive correlations with EuroScore II, Edmonton Frail Scale and Clinical Frailty Scale. EuroScore II can also predict the length of stay in the intensive care unit. For postoperative deaths, the highest sensitivity had EuroScore II, followed by Clinical Frailty Scale and Edmonton Frail Scale.
  
  
  CONCLUSIONS
  EuroScore II and the frailty scales have an increased prognostic value regarding the postoperative outcome of patients (length of mechanical ventilation and in-hospital mortality), the EuroScore II can predict the length of stay in the intensive care unit as well.
authors.affiliation: University of Medicine and Pharmacy of Târgu Mureş, Emergency Clinical County Hospital, Targu Mures, Romania.
authors.forename: Judit
authors.identifier: 0000-0003-4108-5592
authors.initials: J
authors.lastname: Kovacs
authors.affiliation: University of Medicine and Pharmacy of Târgu Mureş, Emergency Clinical County Hospital, Targu Mures, Romania.
authors.forename: Liviu
authors.initials: L
authors.lastname: Moraru
authors.affiliation: University of Medicine and Pharmacy of Târgu Mureş, Emergency Clinical County Hospital, Targu Mures, Romania.
authors.forename: Krisztina
authors.initials: K
authors.lastname: Antal
authors.affiliation: Department of Anesthesia and Intensive Care, Emergency Clinical County Hospital, Targu Mures, Romania.
authors.forename: Adrian
authors.initials: A
authors.lastname: Cioc
authors.affiliation: University of Medicine and Pharmacy of Târgu Mureş, Emergency Clinical County Hospital, Targu Mures, Romania.
authors.forename: Septimiu
authors.initials: S
authors.lastname: Voidazan
authors.affiliation: Department of Anesthesia and Intensive Care, Emergency Clinical County Hospital, Targu Mures, Romania.
authors.forename: Attila
authors.initials: A
authors.lastname: Szabo
keywords: Cardiac surgery; Elderly; Postoperative complications; Risk assessment