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Archives of Anesthesiology and Critical Care، جلد ۴، شماره ۳، صفحات ۴۸۳-۴۸۷
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عنوان انگلیسی Comparison of Four Methods for Predicting Difficult Laryngoscopy: A Prospective Study of Validity Indexes
چکیده انگلیسی مقاله Background: Considering that a simple yet valid airway predictor is basically preferred to a multivariable test with the same level of validity, we designed a study to compare the validity indexes of the TMHT, as a single variable test, with that of Wilson, Arne, and Naguib tests. Methods: 270 consecutive ASA physical statues I and II patients aged ≥16 years, candidate to receive general anesthesia for elective surgeries, were enrolled in the study. All patients preoperatively were evaluated using four airway predictor tests including Wilson, Arne, Naguib, and Thyromental height test (TMHT). Cut-off points to predict a difficult laryngoscopy were extracted from previous published studies for each test. Based on each predictor, all patients were classified into either easy or difficult. Based on Cormack-lehane scoring system, as the gold standard, all patients during laryngoscopy were categorized into two groups of “easy, grades I, II” and “difficult, grades III, IV”. Finally, validity indexes for each test were calculated and compared to one another. Results: The incidence of difficult laryngoscopy according to Cormack-lehane grading was 17.4% (47/270). The predicted rates of difficult laryngoscopy were 47 (17.4%), 2 (0.7%), 10 (3.7%) and 61 (22.6%) for TMHT, Wilson, Arne and Naguib respectively. Based on Chi-square test, the TMHT as well as the Naguib could significantly predict difficult laryngoscopy. However, the highest rate of sensitivity, positive predictive value, negative predictive value, and accuracy belonged to TMHT. Conclusion: Both TMHT and Naguib are acceptable predictors of difficult laryngoscopy while the TMHT is a more accurate predictor of difficult laryngoscopy than the other multivariable models.
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نویسندگان مقاله | Farhad Etezadi
Department of Anesthesiology and critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.


| Leila Saeedinia
Department of Anesthesiology and critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.


| Pejman Pourfakhr
Department of Anesthesiology and critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.


| Atabak Najafi
Department of Anesthesiology and critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.


| Mohammadreza Khajavi
Department of Anesthesiology and critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.


| Aylar Ahangari
Department of Anesthesiology and critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.


| Reza Shariat Moharari


نشانی اینترنتی http://aacc.tums.ac.ir/index.php/aacc/article/view/188
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/371/article-371-684511.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Research Article(s)
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