Читать книгу Manual of Equine Anesthesia and Analgesia - Группа авторов - Страница 241

 Most ET tubes are made from non‐toxic plastic or silicone and are numbered according to their internal diameter (mm).Figure 4.6 PVC mouth gag used to hold mouth open and protect endotracheal tube.Figure 4.7 Oral speculums used in equine patients: Weingart mouth gag (a), Gunther mouth gag (b).

 Tube selection is generally based on the body mass of the horse.

 It is important that the tube not be too tight a fit for the airway.Most adult, full‐size horses (400–500 kg) require a tube size of 24–26 mm.Larger horses (≥500 kg) require a tube of 26–30 mm or greater.The airway of the newborn foal (40–50 kg) should accommodate a tube diameter of 10–11 mm.A newborn miniature horse breed (~10 kg) will need a smaller diameter tube (6–7 mm).

 There is generally little danger of bronchial intubation in horses.