All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .
Microdebrider tonsillotomy vs electrosurgical tonsillectomy: a randomized, double-blind, paired control study of postoperative pain.
OBJECTIVE To examine whether microdebrider intracapsular tonsillotomy ( MT ) results in less postoperative pain compared with electrosurgical extracapsular tonsillectomy ( ET ) . DESIGN Prospect i ve , r and omized , double-blind , matched pair , clinical trial . SETTING Specialty care hospital . Patients Twelve male ( 48 % ) and 13 female ( 52 % ) children aged 5 to 15 years , with obstructive tonsillar hyperplasia were r and omized to have one tonsil removed by MT and the other by ET . INTERVENTIONS An angled endoscopic microdebrider was used to perform MT , and ET was performed by st and ard monopolar cautery technique .  Parents and children were blinded to the side of MT and ET . Children rated the pain 0 to 5 by side using the Faces Pain Scale-Revised . Blinded data collection was via telephone daily for 2 weeks by a study nurse . MAIN OUTCOME MEASURES Primary : postoperative pain as recorded by Faces Pain Scale-Revised ; secondary , presence or absence of otalgia and postoperative bleeding . RESULTS Twenty-two children ( 88 % ) had tonsillectomy and adenoidectomy , while 3 children ( 12 % ) had tonsillectomy alone . On postoperative days 1 to 9 , children reported significantly less pain on the MT side compared with the ET side ( paired t test ; P<.01 ) . By postoperative days 10 to 14 , the difference between sides disappeared . Twenty children ( 80 % ) reported otalgia , and it was always unilateral . For those children reporting otalgia , there was a 100 % correlation between the side of otalgia and the side of ET . There was no posttonsillectomy bleeding among the 25 children . CONCLUSION Microdebrider intracapsular tonsillotomy is significantly less painful compared with electrosurgical ET in children undergoing surgical intervention for obstructive tonsillar hypertrophy
All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .