Preterm Neonates Clinical Trial
Official title:
Polyethylene Bag: a Way of Preventing Hypothermia During Central Venous Catheter Placement in Preterm Neonates?
Particular attention is paid to thermal management of preterm neonates in neonatal intensive
care units because of the major risk of morbidity associated with hypothermia. Percutaneous
central venous catheter placement is essential to ensure adequate caloric intake and
intravenous administration of treatments, but this procedure can cause major body
temperature variations, responsible for complications in these neonates, as convection
incubator function is impaired during opening of the incubator, which can be prolonged (30
minutes to 2 hours) depending on the technical difficulties encountered during catheter
placement.
In parallel, the use of a polyethylene bag or sheet in the delivery room and for neonatal
transport is now clearly defined and ensures stability or even a considerable temperature
gain during transfer immediately after birth. In the light of several clinical cases, the
use of a polyethylene bag during central venous catheter placement appears to be effective
to prevent body temperature loss in preterm neonates. No data are currently available
concerning the value of this method of prevention of hypothermia during this type of
procedure.
Preliminary studies conducted by our team on a dummy suggest that a polyethylene bag or
sheet could be useful during this procedure by significantly reducing heat loss caused by
convection and evaporation. However, compensation phenomena such as generalized
vasoconstriction to cold in preterm infants are very poorly described, but can induce a
functional conflict between mechanisms ensuring maintenance of homeostasis and those
involved in maintenance of blood pressure.
n/a
Observational Model: Case Control, Time Perspective: Prospective
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