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Randomized Controlled Trial Comparative Study Clinical Trial
Cardiovascular responses to the insertion of nasogastric tubes during general anaesthesia.
- A Fassoulaki and E Athanassiou.
- Can Anaesth Soc J. 1985 Nov 1; 32 (6): 651-3.
AbstractEighty female patients free of cardiovascular disease who were having excision of breast lesions were randomly allocated to one of two groups. In the first group a nasogastric tube was inserted blindly during the surgical procedure, while in the second group the tube was inserted under direct laryngoscopy, using Magill forceps. Both groups exhibited a significant increase in systolic blood pressure (SBP) (p less than 0.001) and heart rate (HR) (p less than 0.005). These increases declined during the following 3 minutes. Ventricular extrasystoles (more than 5 during the 3 min following the insertion of the nasogastric tube) occurred only in the group having the nasogastric tube with the aid of laryngoscopy (p less than 0.05).
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