![]() ![]() Methods Fifty-nine anesthetized and paralyzed patients were included. We evaluated the effect of an endoscopic bite block on mask ventilation among three ventilation techniques: one-handed ventilation, one-handed ventilation with an endoscopic bite block, and two-handed ventilation. Wide opening of the mouth may facilitate the efficiency of one-handed mask ventilation. So thanks for watching and I hope to see you again soon.Abstract : Purpose An endoscopic bite block is a device to ensure that the patient's mouth remains wide open during endoscopic procedures. If you want to learn how Medmastery can help you become a great clinician, make sure to watch the about mastery video. Absolutely, make sure to check out the course this video was taken from and to register for a free trial account which will give you access to select the chapters of the course. So, an elevation in arterial carbon dioxide tension would only be seen when the patient can't sustain the overall level of ventilation necessary to compensate. These individuals can compensate for the increase in Dead Space by increasing the overall level of ventilation to keep pa co2 constant. However, in most disorders characterized by an increase in lung areas with high v Q hypercapnia does not occur. ![]() Conceptually, any alveolar units with v Q greater than one, but not infinity, can be described as if the units were functionally equivalent to areas of Deadspace.Īreas of high v Q or physiologic Deadspace represent regions of wasted ventilation as far as carbon dioxide elimination is concerned. Another form of abnormal ventilation perfusion relationship can be seen as a result of alveolar units with ventilation, but no persistent perfusion. ![]()
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