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  • Title: Active versus passive cooling during neonatal transport.
    Author: Chaudhary R, Farrer K, Broster S, McRitchie L, Austin T.
    Journal: Pediatrics; 2013 Nov; 132(5):841-6. PubMed ID: 24144712.
    Abstract:
    BACKGROUND AND OBJECTIVE: Therapeutic hypothermia is now the standard of care for hypoxic-ischemic encephalopathy. Treatment should be started early, and it is often necessary to transfer the infant to a regional NICU for ongoing care. There are no large studies reporting outcomes from infants cooled passively compared with active (servo-controlled) cooling during transfer. Our goal was to review data from a regional transport service, comparing both methods of cooling. METHODS: This was a retrospective observational study of 143 infants referred to a regional NICU for ongoing therapeutic hypothermia. Of the 134 infants transferred, the first 64 were cooled passively, and 70 were subsequently cooled after purchase of a servo-controlled mattress. Key outcome measures were time to arrival at the regional unit, temperature at referral and arrival at the regional unit, and temperature stability during transfer. RESULTS: The age cooling was started was significantly shorter in the actively cooled group (46 [0-352] minutes vs 120 [0-502] minutes; P <.01). The median (range) stabilization time (153 [60-385] minutes vs 133 [45-505] minutes; P = .04) and age at arrival at the regional unit (504 [191-924] minutes vs 452 [225-1265]) minutes; P = .01) were significantly shorter in the actively cooled group. Only 39% of infants passively cooled were within the target temperature range at arrival to the regional unit compared with 100% actively cooled. CONCLUSIONS: Servo-controlled active cooling has been shown to improve temperature stability and is associated with a reduction in transfer time.
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