• F Reinoso-Barbero, A I Lahoz Ramón, M P Durán Fuente, G Campo García, and L E Castro Parga.
• Unidad de Dolor Infantil, Servicio de Anestesiología Infantil, Hospital Universitario La Paz, Madrid, Spain. freinosob.hulp@salud.madrid.org
• An Pediatr (Barc). 2011 Jan 1; 74 (1): 10-4.

AbstractThis study was designed to validate a new paediatric acute pain scale, LLANTO, comparing its scores with those obtained from the CHEOPS scale in 54 Spanish children aged 1 month-6 years. LLANTO is an acronym of five behavioural or physiological variables previously shown to be associated with pain in children (crying, attitude, respiratory pattern, muscle tone and facial expression). The LLANTO pain scale was tested for validity and inter-rater reliability. The children's behaviour was observed after surgery, before and after analgesics administration in the post-anaesthesia care unit (PACU). Three observers (an experienced physician, a resident in training and a nurse) then simultaneously rated pain behaviour in a blinded way with both scales. LLANTO scale had an acceptable inter-rater correlation (0.809, 0.686 and 0.908, P<0.0001). Construct validity was determined by the ability to differentiate the group with a high pain level before analgesia and after analgesia (P<0.002). The positive correlation between both scales (r=0.804, P<0.0001) supported concurrent validity. Use of the κ statistic indicated that LLANTO scale yielded a perfect agreement with the CHEOPS scale, with an appropriate sensitivity and specificity (96% and 87% respectively). On the basis of data from this study, we recommend LLANTO as a valid, reliable and practical tool for Spanish speakers.Copyright © 2010 Asociación Española de Pediatría. Published by Elsevier Espana. All rights reserved.

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