Comparison of two Macintosh laryngoscope blades in 300 patients

Abstract

In patients in whom laryngoscopy was unexpectedly difficult, the English blade provided a better glottic view significantly more frequently than the standard blade.

Comparison of direct and video-assisted views of the larynx during routine intubation

“…Once anesthesiologists adopted tracheal intubation, many variations of the laryngoscope followed, including the Macintosh and Miller laryngoscope blades, resulting in claims of improved views of the glottis, thus facilitating tracheal intubation [2]. More specialized designs such as indirect rigid laryngoscopes have been introduced into clinical practice [3][4][5][6] because patients continue to present with difficult airways and even relatively minor changes in the design of the blade may improve glottic visualization [7].…”

Evaluation of Modified Cormack-Lehane Scoring System in Indian Population

“…[5] The wide variations in Section: Anaesthesia the incidence of Difficult laryngoscopy may be related to many of the factors such as age and ethnic differences in patients [6,7] or types of laryngoscope blade used. [8] Sensitivity and specificity of HMDR: The ideal test for Difficult laryngoscopy prediction should have 100% sensitivity and 100% specificity; however, sensitivity and specificity are usually inversely proportional to each other. Optimal cut offs used in our study used to calculate the sensitivity and specificity in our study were HMD at the extreme of head extension ≤5.3 cm; TMD at the extreme of head extension ≤6.2 cm; Modified Mallampati Class ≥3.…”

Laryngoscope plastic blades in scheduled general anesthesia patients: a comparative randomized study

“…We considered that the difference would be of clinical importance if the difference in the rate of IDS N 5 was above 8%. This difference was based on a previous study comparing two reusable blades [15]. One hundred fifty-six patients per group were necessary.…”