• Acta Anaesthesiol Scand · Feb 2005

    Pre-anesthetic presence of an injured dam influences pups' locomotor behavior during emergence from anesthesia in rats.

    • Y-C P Arai, W Ueda, and E D Al-Chaer.
    • Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA. arainon@med.kochi-ms.ac.jp
    • Acta Anaesthesiol Scand. 2005 Feb 1;49(2):166-9.

    BackgroundPre-anesthetic mother-infant interaction is an important factor for smooth emergence of pediatric anesthesia. In many mammalian species, disruptions of the mother-infant relationship cause psychological and behavioral changes. This study was to investigate whether or not pre-anesthetic presence of an injured dam has an impact on locomotor behavior of rat pups.MethodsWe used a video-tracking system to test the effects of pre-anesthetic relations between pups and their dams on pups' locomotor behavior during emergence from general anesthesia, in 40 3-week-old Sprague-Dawley male rats. Pups were divided into two groups: pups housed with a dam (n = 20) and those housed with an injured dam (n = 20). Pups were anesthetized with 1.2% halothane for 30 min. At emergence, we recorded their locomotor behavior for 15 min.ResultsPre-anesthetic manipulation to dams significantly increased the distance traveled by pups. However, the manipulation did not cause any difference in the maximum velocity.ConclusionPre-anesthetic presence of an injured dam influenced pups' locomotor behavior at emergence from anesthesia.

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