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  • Title: Effects of adenosine triphosphate on the cardiovascular response to tracheal intubation.
    Author: Mikawa K, Maekawa N, Kaetsu H, Goto R, Yaku H, Obara H.
    Journal: Br J Anaesth; 1991 Oct; 67(4):410-5. PubMed ID: 1931397.
    Abstract:
    Laryngoscopy and tracheal intubation often cause hypertension and tachycardia, which may be exaggerated during rapid-sequence induction of anaesthesia. The efficacy of adenosine triphosphate (ATP) in attenuating this response was studied in patients receiving ATP 0.05 mg kg-1 or 0.1 mg kg-1 simultaneously with the start of laryngoscopy. These data were compared with those for a control group receiving saline. Each group consisted of 10 patients undergoing elective surgery. Anaesthesia was induced with thiopentone 5 mg kg-1 i.v. and tracheal intubation was facilitated with vecuronium 0.2 mg kg-1 i.v. During anaesthesia, ventilation was assisted or controlled with 1% enflurane and 50% nitrous oxide in oxygen. Patients receiving saline showed a significant increase in mean arterial pressure and rate-pressure product associated with tracheal intubation. These increase after tracheal intubation were reduced in ATP-treated patients compared with those of the control group (P less than 0.05). The data suggest that a bolus injection of ATP is a simple, practical and effective method for attenuating the hypertensive response to laryngoscopy and tracheal intubation.
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