title: VI2TA2 S2C2ORE: a new score system for in hospital mortality in acute aortic dissections.
abstract: Aortic dissections classification systems have always been an argument of debate. It is well known that none of the described classifications is complete and easy at the same time. While the more used classification is currently the Stanford classification, it is clear that type A and B dissections prognosis can dramatically vary, depending on many different characteristics that they can present. The aim of this study was to propose a new severity score system that could reflect the risk of in hospital mortality of acute aortic dissections.
  
  
  
  Through a review of the literature, studies describing significant predictors of in hospital mortality of any type of aortic dissection were searched and selected by predefined selection criteria.
  
  
  
  Nine studies met the criteria and were finally analyzed. The Odds Ratios of the reported predictors were the basis to the drawing of the score system. Sixteen main in hospital mortality predictors were found, 14 of which described in more than one study. They were combined into a new severity score system that we named VI2TA2 S2C2ORE.
  
  
  
  This is a simple risk score that we propose as a first assessment risk-evaluating tool. We look forward to validate it and to describe specific in hospital mortality risk ranges once it will be adopted.
authors.affiliation: Unit of Vascular and Endovascular Surgery, AOU Policlinico alle Scotte, Siena, Italy - dr.orrico.matteo@gmail.com.
authors.forename: Matteo
authors.initials: M
authors.lastname: Orrico
authors.affiliation: Unit of Vascular Surgery, San Filippo Neri Hospital, Rome, Italy.
authors.forename: Sonia
authors.initials: S
authors.lastname: Ronchey
authors.affiliation: Unit of Vascular Surgery, San Filippo Neri Hospital, Rome, Italy.
authors.forename: Barbara
authors.initials: B
authors.lastname: Praquin
authors.affiliation: Unit of Vascular and Endovascular Surgery, AOU Policlinico alle Scotte, Siena, Italy.
authors.forename: Carlo
authors.initials: C
authors.lastname: Setacci
authors.affiliation: Clinic for Cardiovascular Surgery, University Hospital of Zurich, Zurich, Switzerland.
authors.forename: Mario
authors.initials: M
authors.lastname: Lachat
authors.affiliation: Unit of Vascular Surgery, San Filippo Neri Hospital, Rome, Italy.
authors.forename: Nicola
authors.initials: N
authors.lastname: Mangialardi
mesh_terms: D000208:Acute Disease; D000784:Aortic Dissection / Q000145:classification* / Q000401:mortality*; D001014:Aortic Aneurysm / Q000145:classification* / Q000401:mortality; D017052:Hospital Mortality; D006760:Hospitalization; D006801:Humans; D016017:Odds Ratio; D011379:Prognosis; D012307:Risk Factors; D012720:Severity of Illness Index