title: Postoperative confusion assessed with the Short Portable Mental Status Questionnaire.
abstract: BACKGROUND
  Confusion is a common occurrence after cardiac surgery. However, there is great variability in the reported incidence of confusion in patients following cardiac surgery, mainly due to the diagnostic methods and instruments employed in assessing confusion.
  
  
  METHODS
  Forty-eight cardiac surgery patients were assessed for postoperative confusion by a non-structured physician interview, and by the short portable mental status questionnaire (SPMSQ) administered by a medical student.
  
  
  RESULTS
  The non-structured ward interviews detected confusion in one of the 48 patients (2%), whereas the SPMSQ diagnosed confusion in 15 of the 48 patients (31%).
  
  
  CONCLUSIONS
  Unlike a subjective ward interview, the SPMSQ is a brief and objective diagnostic tool that can be used to measure accurately both the presence and severity of confusion in postoperative cardiac surgery patients.
authors.affiliation: School of Medicine, Flinders University of South Australia, Adelaide, Australia.
authors.forename: Amirarsalan
authors.initials: A
authors.lastname: Eissa
authors.forename: Marie J
authors.initials: MJ
authors.lastname: Andrew
authors.forename: Robert A
authors.initials: RA
authors.lastname: Baker
mesh_terms: D000328:Adult; D006348:Cardiac Surgical Procedures; D003072:Cognition Disorders / Q000175:diagnosis; D003221:Confusion / Q000175:diagnosis*; D003693:Delirium / Q000175:diagnosis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000523:psychology*; D011795:Surveys and Questionnaires