Skip to content

C-MAC D-Blade and GlideScope : perhaps video will kill the direct laryngoscope star?

This article published online. Free full text downloadable from publisher website and link below ( right down the bottom)

This study consistent with previous similar studies in elective anaesthesia settings. Better views with VL but slower intubation times cw DL. However no failed intubations with VL cw some failed tubes with DL. My advice : train with both techniques. DL will cover most intubations with VL allowing a few more otherwise not achievable with DL.

Minerva Anestesiol. 2012 Oct 2. [Epub ahead of print]

Indirect videolaryngoscopy with C-MAC D-Blade and GlideScope: A randomized, controlled comparison in patients with suspected difficult airways.

Serocki GNeumann TScharf EDörges VCavus E.


Department of Anaesthesiology and Intensive Care Medicine, University-Hospital Schleswig-Holstein UKSH, –



Recently, indirect videolaryngoscopes have become increasingly important devices in difficult airway management. The aim of the present study was to investigate laryngoscopic view and intubation success using the new C-MAC® D-Blade in comparison to the established GlideScope® videolaryngoscope and conventional direct laryngoscopy in a randomized controlled trial.


Ninety-six adult patients with expected difficult airways undergoing elective ear, nose and throat surgery (ENT) requiring general anaesthesia were investigated. Repeated laryngoscopy was performed using a conventional direct Macintosh laryngoscope (DL), C-MAC D-Blade (DB) and GlideScope (GS) in a randomized sequence before patients were intubated with the last device used.


Both videolaryngoscopes showed significantly better C/L (Cormack-Lehane) classes than DL. Insufficient laryngoscopic view, defined as C/L A III, was experienced in 18 patients (19.2 %) with DL, in two patients with GS (2.1 %) and in none with DB (0%). Time to best achievable laryngoscopic view did not differ between devices. Intubation time was significantly longer with both videolaryngoscopes (Median [Range] DB: 18 [8-33] s, and GS: 19 [9-34] s) than with DL (11 [5-26] s). However, intubation success was 100 % for both DB and GS, whereas four patients could not be intubated using conventional direct laryngoscopy.


Compared to direct Macintosh laryngoscopy, both C-MAC® D-Blade and GlideScope® comparably resulted in an improved view of the glottic opening with successful tracheal intubation in all patients.



[PubMed – as supplied by publisher]

Free Full text below
GLidescope vs CMAC vs DL Minerva Anestesiologica 2012
One Comment Post a comment
  1. This study looked at a less interesting population than critical care, ED or prehospital where the patient context is much less well controlled and the outcome stakes are possibly higher. For instance, would you tolerate the (marginally) longer intubation time in a septic obese patient who starts hypoxic and desaturates rapidly or should you opt for the (relative) certainty of a successful intubation?

    November 16, 2012

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


Implementing Effective Safety Solutions

Emergency Medicine Literature of Note

In memory of Dr John Hinds


Medical education in the tropics

Rural General Practice

Thoughts and experiences on the journey to enlightenment



EM in Focus

time to get focused on your patients.


The ACEM Fellowship Exam Resource

Dr. Smith's ECG Blog

In memory of Dr John Hinds


"Live as if you will die tomorrow; Learn as if you will live forever"

Songs or Stories

Sharing the Science and Art of Paediatric Anaesthesia


In memory of Dr John Hinds

Liz Crowe

Wellbeing Counsellor and Educator


In memory of Dr John Hinds

EM Basic

Your Boot Camp Guide to Emergency Medicine

Medical Admission Note

In memory of Dr John Hinds


Ramblings from a gasdoc with interests in #anaesthesia, #intensivecare, #echo, #PHEM and #FOAM

pulmcrit – EMCrit

In memory of Dr John Hinds

Miss Chardy

Laughter in the Outback

The Collective

A Hive Mind for Prehospital and Retrieval Med

Bits & Bumps

Obstetrics and Gynaecology Podcast


A Free Open Access Medical Education Emergency Medicine Core Content Mash Up

Adventure Medic

Just another site


Or "How I'm Learning to Stop Worrying and Love Emergency Medicine"


A great site

Genevieve's anthology

Writings to amuse, teach, inspire and entertain.

JR Paramedic

In memory of Dr John Hinds

Monash Anaesthesia

In memory of Dr John Hinds


A topnotch site


Bringing the boring to emergency medicine


Navigating resuscitation

Doctor's bag

by Dr Edwin Kruys

EM nerd

In memory of Dr John Hinds

The Chart Review

In memory of Dr John Hinds

ETM Course

Emergency Trauma Management Course

The Doctor's Dilemma

Modern Medical Musings from Dr Marlene Pearce

Sim and Choppers

A blog combining medical education, simulation and helicopter retrieval medicine


Reflections of a Rural GP

Auckland HEMS

Unofficial site for prehospital care providers of the Auckland HEMS service

Rural Doctors Net

useful resources for rural clinicians

expensive care

end of life, ethics and communication in critical care

Nomadic GP

Adventures of a Rural Locum


Free Open Access Medical Education for Paramedics

Not just a GP

Why GP is the greatest job in the world

the short coat

In memory of Dr John Hinds


Bringing the Boring to EM

%d bloggers like this: