Medical Transcription Word Board archived thread
This is an anesthesiologist talking about doing a pre-op
Thu Feb 5, 2004 12:33
a pre-op evaluation of patients:
"There is a 'mallen potty' (phonetic) classification of evaluating patients' airways, when they open their mouth, how much one can visualize."
Mallampati classification. SM
Thu Feb 5, 2004 12:53
The Mallampati classification relates tongue size to pharyngeal size. This test is performed with the patient in the sitting position, the head held in a neutral position, the mouth wide open, and the tongue protruding to the maximum. The subsequent classification is assigned based upon the pharyngeal structures that are visible.
Class I = visualization of the soft palate, fauces, uvula, anterior and posterior pillars.
Class II = visualization of the soft palate, fauces and uvula.
Class III = visualization of the soft palate and the base of the uvula.
Class IV = soft palate is not visible at all.
The classification assigned by the clinician may vary if the patient is in the supine position (instead of sitting). If the patients phonates, this falsely improves the view. If the patient arches his or her tongue, the uvula is falsely obscured. A class I view suggests ease of intubation and correlates with a laryngoscopic view grade I 99 to 100% of the time. Class IV view suggests a poor laryngoscopic view, grade III or IV 100% of the time. Beware of the intermediate classes which may result in all degrees of difficulty in laryngoscopic visualization.
copyright Will Sandberg 2007