[The Mallampati Score. Prediction of difficult intubation in otolaryngologic laser surgery by Mallampati Score].
The Mallampati score (MS), later modified by Samsoon and Young, is a common method used to predict difficult intubation. We tested its predictive value in otolaryngologic (ENT) laser surgery.


METHODS
Ninety-one patients scheduled for elective ENT laser surgery had the modified MS noted prior to induction in the supine position, with the tongue fully protruded and phonating "ah"; 22 patients were female, 69 male. The mean age was 54 +/- 15 (6-84) years, height 171 +/- 9 (130-190) cm, and weight 72 +/- 21 (20-99) kg. After a standard induction, the laryngoscopic view was graded according to Cormack and Lehane (C&L). An intubation was considered difficult if the C&L score was > or = 3, i.e., no part of the glottis seen during laryngoscopy. The hypothesis tested was that a MS > or = 3 (i.e., only the base of the uvula or nine of the uvula was seen) is predictive of difficult intubation in this group of patients. This chi-square test was used for calculation of significance.


RESULTS
All intubations were performed in less than three attempts, and no C&L score of 4 (i.e., not even the epiglottis seen during laryngoscopy) was observed; 10 patients had a C&L score > or = 3, i.e., a difficult intubation according to our definition. Sixty-two patients had a MS < or = 2; of these, 4 (= 6%) were difficult to intubate. Twenty-nine patients had MS > or = 3; of these, 6 (= 21%) were difficult to intubate. This difference was significant (chi-square = 4.1, P < 0.05).


CONCLUSIONS
Difficult intubation was significantly more common in patients with MS > or = 3. Low sensitivity (60%) and specificity (72%) limit the clinical value of this test, however.
Bergler
W
W
Fakultät für Klinische Medizin Mannheim, Universität Heidelberg, Mannheim.
Maleck
W
W
Baker-Schreyer
A
A
Ungemach
J
J
Petroianu
G
G
Hörmann
K
K
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects / Q000379:methods; D007830:Larynx / Q000601:surgery*; D053685:Laser Therapy; D008297:Male; D008875:Middle Aged; D013508:Ophthalmologic Surgical Procedures; D010614:Pharynx / Q000601:surgery*
Der Mallampati-Score. Vorhersage der schwierigen Intubation in der HNO-Laserchirurgie mittels Mallampati-Score.