Clinical trial NCT02466620: A Comparison of Paediatric Weight Estimation Methods for Emergency Resuscitation
Official title: A Comparison of Paediatric Weight Estimation Methods for Emergency Resuscitation
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Body Weight
Keywords: Body Weight
Resuscitation
Pediatric weight estimation
Lead sponsor: Mahidol University
Sponsor class: OTHER
First posted: 2015-06-09
Enrollment: 430
Sex: ALL
Minimum age (years): 6
Maximum age (years): 12
Standard ages: CHILD
Accepts healthy volunteers: yes
Time perspective: CROSS_SECTIONAL
Sampling method: PROBABILITY_SAMPLE
Study population: 2 sources of study population:

1. Children from pre-school and primary school at Wat Amarintararam School, Bangkok, Thailand
2. Children from the out-patient department at Siriraj hospital, Bangkok, Thailand

Brief summary: The purpose of this study is to study the validity, reliability and practicality of the different weight estimation methods (parent estimation method, Mercy method, Broselow tape, original and update APLS) in Thai children.

Detailed description: A reliable paediatric weight estimation method is crucial for the physician attempting to resuscitate an injured child. When a patient is in a critical, life threatening condition or in mass casualty settings, actual body weight cannot be obtained by weight measurement instrument. Several resuscitation modalities, such as resuscitation medications, fluid replacement, and amount of electrical shock in defibrillation, are calculated according to patient body weight

Besides from weight derived from children's parent which cannot achieve in some situations and vary in accuracy, Broselow tape is the gold standard currently for appraise children's weight from their length. However, this tape tends to underestimate weight and it is limited to use in children are less than 146 centimeters in length. Age- based weight estimation methods are the mathematical formulas to estimate weight from the children's age. The various methods described in the Advanced Paediatric Life support (APLS) both original and updated still have doubts about the accuracy and reliability. Both length- based and aged- based methods fail to resolve the overweight or obese and underweight children who have the same height or the same age. Mercy method is the new weight estimation method that incorporates the humeral length and mid-upper arm circumference to estimate the child weight. This method has been demonstrated both accuracy and reliability over other existing methods. This study will evaluate the validity, reliability and practicality of the previously mentioned pediatric weight estimation methods.

Eligibility criteria: Inclusion Criteria:

* Healthy children
* Informed consent and assent (7-12 years) were obtained

Exclusion Criteria:

* Disabling children
* Incapable to stand up or lie down to measure weight or length
* Chronic steroid use
* Edema from known diseases
* Extremities joint contracture

Primary outcomes:
measure: The validity of the different weight estimation methods
timeFrame: at time of measurement within one day
Secondary outcomes:
measure: The reliability of the different weight estimation methods
timeFrame: at time of measurement within one day
measure: The practicality of the different weight estimation methods
timeFrame: at time of measurement within one day
Other outcomes:
Locations:
city: Bangkok
country: Thailand
facility: Artid Samerchua
Study officials:
affiliation: Mahidol University
name: Artid Samerchua
role: PRINCIPAL_INVESTIGATOR
References:
citation: Lundahl A, Kidwell KM, Nelson TD. Parental underestimates of child weight: a meta-analysis. Pediatrics. 2014 Mar;133(3):e689-703. doi: 10.1542/peds.2013-2690. Epub 2014 Feb 2.
citation: Graves L, Chayen G, Peat J, O'Leary F. A comparison of actual to estimated weights in Australian children attending a tertiary children's' hospital, using the original and updated APLS, Luscombe and Owens, Best Guess formulae and the Broselow tape. Resuscitation. 2014 Mar;85(3):392-6. doi: 10.1016/j.resuscitation.2013.11.024. Epub 2013 Dec 7.
citation: Dicko A, Alhousseini ML, Sidibe B, Traore M, Abdel-Rahman SM. Evaluation of the Mercy weight estimation method in Ouelessebougou, Mali. BMC Public Health. 2014 Mar 21;14:270. doi: 10.1186/1471-2458-14-270.
citation: Abdel-Rahman SM, Ridge A, Kearns GL. Estimation of body weight in children in the absence of scales: a necessary measurement to insure accurate drug dosing. Arch Dis Child. 2014 Jun;99(6):570-4. doi: 10.1136/archdischild-2013-305211. Epub 2014 Feb 26. No abstract available.
citation: Abdel-Rahman SM, Ahlers N, Holmes A, Wright K, Harris A, Weigel J, Hill T, Baird K, Michaels M, Kearns GL. Validation of an improved pediatric weight estimation strategy. J Pediatr Pharmacol Ther. 2013 Apr;18(2):112-21. doi: 10.5863/1551-6776-18.2.112.
citation: Trakulsrichai S, Boonsri C, Chatchaipun P, Chunharas A. Accuracy of three methods used for Thai children's body weight estimation. J Med Assoc Thai. 2012 Sep;95(9):1194-9.
citation: Loo PY, Chong SL, Lek N, Bautista D, Ng KC. Evaluation of three paediatric weight estimation methods in Singapore. J Paediatr Child Health. 2013 Apr;49(4):E311-6. doi: 10.1111/jpc.12141. Epub 2013 Mar 14.
citation: Meguerdichian MJ, Clapper TC. The Broselow tape as an effective medication dosing instrument: a review of the literature. J Pediatr Nurs. 2012 Aug;27(4):416-20. doi: 10.1016/j.pedn.2012.04.009. Epub 2012 May 8. No abstract available.