- Visibility 157 Views
- Downloads 69 Downloads
- Permissions
- DOI 10.18231/2394-4994.2018.0108
-
CrossMark
- Citation
A comparative study of laryngeal view and pressor response by using three different blades- Macintosh, miller and Mccoy laryngoscopes
- Author Details:
-
Gaurav Dwivedi
-
Lalit Gupta *
Maintenance of airway during anaesthesia is very important to anaesthesiologist. A prospective, randomized study was conducted in 90 patients (ASA-I & II) posted for various surgeries under general anaesthesia with endotracheal intubation to evaluate differences in glottic view, attempts and duration of laryngoscopy and intubation attempts along with hemodynamic variability associated with the three blades- Macintosh, McCoy and Miller laryngoscope blade. Patients were randomly allocated in three groups. In first group laryngoscopy was done with Macintosh blade, in second group with Miller blade, in third group with McCoy blade.
In this study it was found that McCoy laryngoscope is distinctly superior to the Macintosh and Miller with less hemodynamic changes and better glottic visualization. Degree of difficulty in intubation was more with Miller blade in comparison to Macintosh and McCoy blade which is statistically significant (p value < 0>
Keywords: Cormack lehane grade, Macintosh blade, McCoy blade, Miller blade, Degree of difficulty in intubation.
References
- Magill IW. An improved laryngoscope for anaesthetists. Lancet. 1926;1:500.
- Magill IW. Endo-Tracheal anaesthesia. Proceedings of Royal society of Medicine. 1928;22:83-8.
- Macintosh RR. A new laryngoscope. Lancet. 1943;1:205.
- Latto IP. Management of difficult intubation. In Latto IP, Rosen M. (Eds). Difficulties in Tracheal intubation. London: Bailliere Tindall, 1987;99:99-141.
- Crosby ET, Cooper RM, Douglas MJ, Doyle DJ, Hung OR, Labrecque P, et al. The unanticipated difficult airway with recommendations for management. Can J Anaesth. 1998;45:757–776.
- McCoy EP, Austin BA, Mirakhur RK, Wong KC. A new device for measuring and recoding the forces applied during laryngoscopy. Anaesth. 1995;50:139-143.
- Cook TM, Tuckey JP. A comparison between the Macintosh and the MacCoy Laryngoscope blades. Anaesth. 1996;51:977-890.
- Pritchard C. Comparison of the Macintosh and McCoy laryngoscope blades. Anaesthesia. 1997; 52: 185-6.
- Hastings RH, Hon ED, Nghiem C, Wahrenbrock EA. Force and torque vary between laryngoscopists and laryngoscope blades. Anesth Analg. 1996;82:462-468.
- Hawkins M, Groom P. Comparison of the Macintosh and McCoy laryngoscope blades. Anaesthesia. 197;52:280-
- Hamayasu Y. Cardiovascular changes produced by endotracheal intubation during general anaesthesia. Jpn J Anesth. 1974;23:533
- Hemodynamic response to intubation with Macintosh and McCoy blades. Rev Esp Anestesiol Reanim. 1996;43:177-
- Castillo J, Casano J, Escolano F, Arilla M. Cardio- circulatory response to laryngoscpy. Comparative study between Macintosh and McCoy laryngoscopes. Rev Espanestesiol Reanim 1996;43:219-221.
- Norris TJ, Baysinger CL. Heart rate and blood pressure response to laryngoscopy: the influence of laryngocopic technique. Anaesthesiol. 1986;63:560.
- Dodd RB, Sims WA, Bone DJ. Cardiac arrhythmias observed during anaesthesia. Sur. 1962;51:440.
- Takii S, Tammisto T, Niukki p, Jattela A. effect of laryngoscopy and intubation on plasma catecholamine levels during intravenous induction of anaesthesia. Br J Anaesth. 1972;44:1323.
- McCoy EP, Mirakhur RK, Rafferty C, Bunting H, Austin BA. A comparison of the forces exerted during laryngoscopy. The Macintosh versus the McCoy blade. Anaesth. 1996;51:912-915.
- Shimoda O, Ikuta Y, Isayama S, Sakamoto M, Terasaki H. Skin Vascomotor reflex induced laryngoscopy: comparison of the McCoy and Macintosh Blades. Br J Anaesth. 1997;79:714-718.
- Nishiyama, Tomoki. “[Which laryngoscope is the most stressful in laryngoscopy; Macintosh, Miller, or McCoy?].” Masui. The Japanese journal of Anesthesiol. 1997;46(11):1519-1524.
- Uchida T, Hikawa Y, Saito Y, Yadya K. The McCoy levering laryngoscope inpatients with limited neck extension. Can J Anaesth. 1997; 44: 674-6.
- Sakai T, Konishi T, Nishiyama T, Higashizawa T, Bito H. A comparison of the grade of laryngeal visualization; the McCoy compared with the Macintosh and the Miller blade in adults. Masui.1998;47:998-1001.
- McCoy EP, Mirakhur RK, McCloskey BV. A comparison of the stress response to laryngoscopy. The Macintosh Versus the McCoy blade. Anaesth. 1995;50:943-946.
- McCoy EP, Mirakhur RK, Rafferty C, Bunting H, Austin BA. A comparison of the forces exerted during laryngoscopy. The Macintosh versus the McCoy blade. Anaesth. 1996;51:912-915.
- McMarrow RC, Mirakhur RK. A new mirrored laryngoscope Anaesthesia. 2003; 58:998-1002.
- Gerling MC, Davis DP, Hamilton RS, Morris GF, Vilke GM, Garfin SR, Hayden Sr. Effects of cervical spine immobilization technique and laryngoscope blade selection on an unstable cervical spine in a cadaver model of intubation. Ann Emerg Med. 2000;36:293-300.
- Gaboot DA. Laryngoscopy using the McCoy laryngoscope after application of a cervical collar. Anaesth. 1996;51:812-814.
- Arino JJ, Velasco JM, Gasco C, Lopez-Timoneda F. Straight blades improve visualization of the larynx while curved blades increase ease of intubation: a comparison of the Macintosh, Miller, McCoy, Belscope and Lee- Fiberview blades. Can J Anesth. 2003;50:501–506.
How to Cite This Article
Vancouver
Dwivedi G, Gupta L. A comparative study of laryngeal view and pressor response by using three different blades- Macintosh, miller and Mccoy laryngoscopes [Internet]. Indian J Clin Anaesth. 2018 [cited 2025 Oct 19];5(4):569-575. Available from: https://doi.org/10.18231/2394-4994.2018.0108
APA
Dwivedi, G., Gupta, L. (2018). A comparative study of laryngeal view and pressor response by using three different blades- Macintosh, miller and Mccoy laryngoscopes. Indian J Clin Anaesth, 5(4), 569-575. https://doi.org/10.18231/2394-4994.2018.0108
MLA
Dwivedi, Gaurav, Gupta, Lalit. "A comparative study of laryngeal view and pressor response by using three different blades- Macintosh, miller and Mccoy laryngoscopes." Indian J Clin Anaesth, vol. 5, no. 4, 2018, pp. 569-575. https://doi.org/10.18231/2394-4994.2018.0108
Chicago
Dwivedi, G., Gupta, L.. "A comparative study of laryngeal view and pressor response by using three different blades- Macintosh, miller and Mccoy laryngoscopes." Indian J Clin Anaesth 5, no. 4 (2018): 569-575. https://doi.org/10.18231/2394-4994.2018.0108