title: Diagnostic accuracy of anesthesiology evaluation timing: the 'One-Stop Anesthesia' in pediatric day-surgery.
abstract: OBJECTIVE
  Assessing timing efficacy of anesthetic evaluation in pediatric day-surgery by a diagnostic accuracy study.
  
  
  OBJECTIVE
  Lowering hospital visits in patients with negative medical history.
  
  
  BACKGROUND
  Pediatric patients scheduled for day-surgery procedures can be categorized, according to their history, in two groups. One, the largest, includes healthy patients and the other includes those with medical conditions that necessitate further evaluation.
  
  
  METHODS
  Clinical data are collected by the pediatric surgeons of our department and reviewed by an anesthetist who then selects the timing of anesthesiology evaluation, which will take place in the same day of the procedure (One-Stop Anesthesia), or some days before it, in a dedicated setting (Pre-Admission Clinic). In 2008, 332 children, older than 12 months, screened by that method, underwent surgical procedures in general anesthesia.
  
  
  RESULTS
  Our data were examined using Bayesian Statistical Analysis. In the 'One-Stop Anesthesia' group, true positive were 290 (87.4%) and false positive 4 (1.2%). Of the 38 patients assessed by our Pre-Admission Clinic, true negative were 30 (9%) and false negative 8 (2.4%). Sensibility (97.3%), specificity (88.2%), positive predictive value (98.6%), negative predictive value (78.9%), diagnostic accuracy (96.4%), likelihood positive (8.3), and likelihood negative (0.03) were calculated.
  
  
  CONCLUSIONS
  Timing the preoperative anesthesiologist's evaluation avoided 88% of hospital visits, usually to the Pre-Admission Clinic, and thus, it was cost effective, reducing direct and indirect costs of healthcare providers.
authors.affiliation: Department of Anaesthesiology, San Camillo Hospital, Rome, Italy. mangia.giovanni@fastwebnet.it
authors.forename: Giovanni
authors.initials: G
authors.lastname: Mangia
authors.forename: Paola
authors.initials: P
authors.lastname: Presutti
authors.forename: Adriana
authors.initials: A
authors.lastname: Antonucci
authors.forename: Francesca
authors.initials: F
authors.lastname: Bianco
authors.forename: Roberta
authors.initials: R
authors.lastname: Bonomo
authors.forename: Paola
authors.initials: P
authors.lastname: Ferrari
mesh_terms: D000293:Adolescent; D000556:Ambulatory Surgical Procedures / Q000706:statistics & numerical data*; D000768:Anesthesia, General / Q000706:statistics & numerical data*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011300:Preoperative Care / Q000379:methods*; D012680:Sensitivity and Specificity; D013997:Time Factors