Prediction of difficult laryngoscopy using spirometry: a pilot study

Prediction of difficult laryngoscopy is still the uncovered secret of anesthetic practice. This pilot study is aimed to assess the efficacy of spirometry measurements in predicting difficult laryngoscopy compared with conventional airway assessment techniques. We enrolled 202 adults, ages 18–40 year...

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Bibliographic Details
Published in:Journal of clinical monitoring and computing 2017-12, Vol.31 (6), p.1115-1121
Main Authors: Dogru, Serkan, Karaman, Tugba, Sahin, Aynur, Tapar, Hakan, Karaman, Serkan, Arici, Semih, Suren, Mustafa, Kaya, Ziya, Somuk, Battal Tahsin
Format: Article
Language:English
Subjects:
Adolescent
Adult
Adults
Age
Airway management
Anesthesia
Anesthesia, General
Anesthesiology
Anesthesiology - methods
Area Under Curve
Correlation analysis
Critical Care Medicine
Elective surgery
Elective Surgical Procedures
Female
Health Sciences
Humans
Intensive
Intraoperative Complications
Intubation
Intubation, Intratracheal - methods
Laryngoscopy
Laryngoscopy - methods
Likelihood Functions
Likelihood ratio
Linearity
Male
Medical instruments
Medicine
Medicine & Public Health
Mouth
NCT
NCT02325076
Neck
Original Research
Otolaryngology
Pilot Projects
Predictions
Prospective Studies
Quality
Regression analysis
Regression models
Spirometry
Spirometry - methods
Statistics for Life Sciences
Vital Capacity
Young Adult
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Summary:Prediction of difficult laryngoscopy is still the uncovered secret of anesthetic practice. This pilot study is aimed to assess the efficacy of spirometry measurements in predicting difficult laryngoscopy compared with conventional airway assessment techniques. We enrolled 202 adults, ages 18–40 years, with an American Society of Anaesthesiologists score of I or II, scheduled for elective surgery and undergoing general anesthesia. Spirometry was used for lung capacity measurements before the operation. The Mallampati classification, neck circumference, sternomental distance, thyromental distance, maximum mouth-opening measurement, and upper lip bite test of the subjects were measured. During intubation, the Cormack–Lehane grade was recorded. Spearman’s correlation analysis was used to define the linearity between spirometry outputs and airway measurements. Receiver operating curves were drawn to discriminate the predictive features of the significant values. The thyromental distance showed a higher correlation with forced inspiratory vital capacity (ρ = 0.420, P  
ISSN:1387-1307
1573-2614
DOI:10.1007/s10877-016-9961-2