Читать книгу Manual of Equine Anesthesia and Analgesia - Группа авторов - Страница 245

 An increase in cuff pressure will be transferred to the capillaries in the tracheal mucosa and may occlude blood flow.Arteriolar capillary pressure is ~30 mmHg, and during ventilation of adult horses cuff pressures of ~60–70 mmHg are necessary to prevent leaks.

 Ischemia may result in necrosis of the airway mucosa.

 Selection of a suitably sized tube will prevent having to over‐inflate the cuff to create a seal.

 Low‐volume cuffs have an inherently high‐cuff pressure once inflated. A problem with low volume, high‐pressure cuffs on equine ET tubes is that the pressure measured at the pilot balloon only reflects the elastic force of the cuff, and not the pressure at the mucosa. Thus, checking the cuff pressure with a manometer will not prevent over inflation.