title: Accuracy of estimation of total body weight by legs and head weight measuring and comparison method in the anesthetized patients.
abstract: BACKGROUND
  Accurate patient weight is an important factor in the emergency and operating room departments.
  
  
  OBJECTIVE
  The aim of this study is to determine the accuracy of estimation of total body weight by legs and head weight measuring and comparison method in the anesthetized patients.
  
  
  METHODS
  Education of hospitals, Mazandaran University of Medical Sciences, prospective, observational study.
  
  
  METHODS
  This is prospective observational study. Nursing staff were asked to estimated weight that knows about a similar person weight on the operating room and matched together, then told his/her guests. They were measured total body weight before anesthesia and then patient head and legs weight after anesthesia. The main outcome was mean weight of these methods and percent accuracy in weight estimation for each group recorded.
  
  
  METHODS
  Descriptive statistically used.
  
  
  RESULTS
  Overall, 57.3% (243/425) of operating personnel estimations were equal with actual weight. 35.4% (150/425) of the estimations were less 10 kg than the actual weight and only 7.3 (31/425) of the estimations were above 5 kg of actual weight. The accuracy of overall estimations by operating personnel and its comparison to the accuracy of legs weight, head, and sum weight by a similar method is demonstrated.
  
  
  CONCLUSIONS
  Despite having no formula in the critical intensive care and anesthesia region for estimation anesthetized, for comatose patient weight. We can use this formula, but where possible, should be based on measured weight for drug dose calculation and this is not possible, combination of these formulas is suitable.
authors.affiliation: Department of Anesthesiology, Faculty of Paramedical School, and Traditional and Complementary Medicine of Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Ebrahim
authors.initials: E
authors.lastname: Nasiri
authors.affiliation: Department of Anesthesiology, Mazandaran University of Medical Sciences, Student Research Committee, Ramsar, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Nasiri
keywords: Anesthesia; comparison method; estimation weight; legs and head weight; partial body weight