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 .
The efficacy of LMX versus EMLA for pain relief in boys undergoing office meatotomy.
PURPOSE We determined if a difference in pain management occurred when topical anesthetics LMX ( formerly ELA-Max , lidocaine 4 % ) and EMLA ( lidocaine 2.5 % and prilocaine 2.5 % ) were compared in boys undergoing office meatotomy for symptomatic meatal stenosis . MATERIAL S AND METHODS A prospect i ve r and omized study was performed on 52 boys who underwent office meatotomy by a single pediatric urologist . Of the boys 26 , 2 to 9 years old ( mean age 4.4 ) underwent meatotomy 45 minutes after topical anesthetic application ( LMX 13 , EMLA 13 ) between February and December 2001 , 26 , ages 1 to 10 years old ( 4.6 ) underwent meatotomy 30 minutes after topical anesthetic application ( LMX 13 , EMLA 13 ) between April 2002 and January 2003 . A single pediatric urological nurse performed pain assessment using the Wong-Baker Faces scale before applying the anesthetic ointment and immediately following the procedure . Each child had either LMX or EMLA applied and covered with an occlusive dressing for either 45 or 30 minutes before the procedure . Oral acetaminophen ( 10 mg/kg ) was given at the time of anesthetic application . A meatotomy was then performed using a straight crushing hemostat for 1 to 2 minutes followed by incision . Mann-Whitney rank sum test was implemented to determine statistical significance . RESULTS Excellent procedure outcomes were experienced by all patients without recurrent meatal stenosis . CONCLUSIONS There was no significant difference between LMX and EMLA when applied 45 minutes before meatotomy . When applied 30 minutes before meatotomy LMX provided significantly superior pain management than EMLA
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 .