English Paper Presentation 4: Cardiac/Geriatric/Pediatric Emergency : OE4-6 ; Validation and Efficacy Evaluation of An Electronic Weight-estimate Device Compared with Broselow Tape = English Paper Presentation 4: Cardiac/Geriatric/Pediatric Emergency : OE4-6 ; Validation and Efficacy Evaluation of An Electronic Weight-estimate Device Compared with Broselow Tape

다국어 초록 (Multilingual Abstract)

Objective: To validate and compare the performance of a newly developed electronic weight- estimate device (‘Roller’) for pediatric weight estimation compared with Broselow tape Methods: We devised an electronic device which can measure length by using roller tape-like scale on flat surface. Children below 15 years old were enrolled in this prospective observational study. We measured the actual height and weight of the children, and then two researchers were estimated the height and weight with the Roller at 5-minutes intervals. We also compared the estimated weight values by the Roller with Broselow method. For the comparison of measuring time between two methods, we measured the time interval between start and end of the measurement at each method in randomly selected 30 patients. Three estimates (actual, estimated values with the Roller by researcher-1, researcher-2) were analyzed by inter-observer correlation coefficient (ICC). The measured values were presented with mean error, mean percentage error (MPE), and percentage predicted within 10% and 20% of actual values. Results: Nine hundred six participants (mean 4.27 years, 18.06 Kg) completed the study. There were significant similarity of the weight between actual and the estimates with Roller by two researchers (ICC=0.927, 0.926, respectively P<.001). Mean errors of the estimated values were 0.32kg (MPE 0.11%), 0.18kg (MPE 1.41%), and 0.15kg (MPE 1.72%) for researcher-1, researcher-2, and Broselow, respectively. The proportion of children predicted within 10% of actual weight was 75.1%, 75.7%, and 60.6%, and within 20% of actual weight was 93.9%, 93.5%, and 87.4% for researcher-1, researcher-2, and Broselow, respectively. The Roller showed significantly short mean measurement time than the Broselow method. (9.77 vs. 7.83 seconds, P<.001) Conclusion: We found that the newly developed electronic weight-estimate device was well correlated with actual weight, and superior to the Broselow tape with regard to accuracy and speed for estimate of weight.