Hello,
Could you tell me the variations considered as "normal" of the brachial perimeter? (in 1 week? 15 days? a month?)
Indeed, I often notice large variations (increase or decrease of 10mm / 20mm / 5mm in 1 week for example) in the medical records of children followed in nutrition centers for acute malnutrition.
I suspect it comes from the lack of sensitivity / misuse of the MUAC bracelet but could you guide me by giving me a "fork" deemed normal if the child takes or lose weight.
I thank you in advance for your help
We can expect a MUAC gain of about 0.3 mm to 0.4 mm / day (median). This comes from a personal communication with Dr. Mark Myatt who is a MUAC specialist
Answered:
5 years agoIt is important to note that these gains (0.3 to 0.4 mm per day) are averages of averages. The first "average" is the average gain for each case measured over the entire treatment episode. See below. The second "average" is the average of the average gain for each case measured over the entire treatment episode for all cases.
The overall figure (i.e. 0.3 to 0.4 mm per day) can be seen as a program-level target and is taken from high coverage CMAM programs with high cure rates.
The per-case figure can be difficult to interpret as most gain / growth changes over time following at typical "growth curve" pattern. For example:
muac | * | * | * | * | | * | | * | | * | | * | | * +---------------------------------------------------------> time
The slope (which is gain) changes over time. Gains are large early in treatment but become smaller over time. The average is 0.3 to 0.4 mm per day. This means that we should probable treat 0.3 mm per day (c 2.1 mm per week) as a lower limit in the first week or so of treatment.
See here and here for some more information
Note that these gains are for SAM kids receiving treatment.
I hope this is of some help.
Answered:
5 years agoA big thank you for your answers.
Answered:
5 years ago