BACKGROUND: The ability to perform objective @entity158 assessment is very important in paediatric @entity1 . The goal of this study was to investigate the relationship between the @entity1337 nociception index (ANI), which is based on the heart rate variability, and objective measurements of @entity158 intensity in young or cognitively impaired @entity1 , after surgical or imaging procedures (control group) under general anaesthesia. METHODS: On arrival in the recovery room and subsequently at 5-10 min intervals, the level of @entity158 was rated using the FLACC @entity158 scale (0-10). The ANI values (0-100; 0 indicating the @entity158 ) were recorded simultaneously. The area under the receiver operating characteristic curve (AUC) and grey zone approach were used to evaluate the performance of the ANI to detect @entity1 with FLACC >4. Instantaneous ANI values were compared with ANI values averaged over 256 s periods of time. RESULTS: All @entity1 in the surgical group (n=32) developed moderate-to-severe @entity158 (FLACC >4). @entity1 in the control group (n=30) exhibited minimal @entity158 . Instantaneous ANI values were lower in @entity1 of the surgical group than in the control group [52 (sd16) vs 69 (16), P<0.001]. The AUC for the 256 s ANI recording period [0.94 (95% confidence interval 0.85-0.99)] was significantly higher than for instantaneous ANI (P<0.05). When measured for a period of 256 s, an ANI cut-off value of 56 (grey zone [58-60]) was most predictive of a FLACC >= 4. CONCLUSIONS: The ANI may provide an objective measurement of acute @entity282 , which is correlated with that measured on a FLACC scale in young or cognitively impaired @entity1 .

XXXX assessment in @entity1 : a pilot study of the usefulness of the @entity1337 nociception index   .

@entity1 :: ('9606', 'Species') :: ['children', 'patients', 'Children'] @entity1337 :: ('MESH:D000699', 'Disease') :: ['analgesia'] @entity282 :: ('MESH:D010149', 'Disease') :: ['postoperative pain'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain', 'worst pain']
@entity282 :: (MESH:D010149,Disease) :: ['Postoperative pain']
