Читать книгу Practical Pediatric Gastrointestinal Endoscopy - Группа авторов - Страница 43

Oxygen desaturation (i.e., oxygen saturation <90% in USA or <92% in Europe) in the setting of procedural sedation is a sign of suboptimal ventilation. Patients receiving supplemental oxygen can be 100% saturated with significantly elevated carbon dioxide levels, and be at risk for respiratory deterioration. Over the last 10 years, improved microstream capnographs have arrived which allow accurate, real‐time measurement and continuous display of end‐tidal carbon dioxide. This does not, however, obviate the need for continued close observation of respiratory function at all times.

In a prospective, randomized, controlled trial, integrating capnography into monitoring of nonintubated children receiving moderate sedation for pediatric endoscopy and colonoscopy was shown to reduce hypoxemia. Many hospitals have instituted mandatory use of end‐tidal monitors for all procedural sedations.