Evidence map›Paper›PMID 32842705›Full record

ArticleJournal of clinical medicine2020

Increased First Pass Success with C-MAC Videolaryngoscopy in Prehospital Endotracheal Intubation-A Randomized Controlled Trial.

Christian Macke, Felix Gralla, Marcel Winkelmann, Jan-Dierk Clausen, Marco Haertle, Christian Krettek, Mohamed Omar

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of clinical medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 4 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  7. Observational
  8. Airway management skills and devices on Italian helicopter emergency medical service: a national survey.Scandinavian journal of trauma, resuscitation and emergency medicine · 2026
    Observational
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  10. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Christian MackeTrauma Department, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hanover, Germany.
Felix GrallaTrauma Department, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hanover, Germany.
Marcel WinkelmannTrauma Department, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hanover, Germany.
Jan-Dierk ClausenTrauma Department, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hanover, Germany.
Marco HaertleTrauma Department, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hanover, Germany.
Christian KrettekTrauma Department, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hanover, Germany.
Mohamed OmarTrauma Department, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hanover, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Endotracheal intubation (ETI) with direct view laryngoscopy (DL) is the gold standard for airway management. Videolaryngoscopy (VL) can improve glottis visualization, thus facilitating ETI. The aim of this monocentric, randomized, prospective study on a physician staffed German air ambulance is to compare DL and VL for ETI in terms of number of attempts and time as well as visualization of the glottis in a prehospital setting in a physician-based rescue system in adult patients. A power analysis was performed à priori. We used consecutive on-scene randomization with a sealed envelope system for the DL and VL-group. Successful ETI with first pass success was significantly more frequent with VL than DL and three seconds faster. The percentage of glottis opening and the Cormack & Lehane classification were significantly better with VL than DL. Regarding improved first pass success in ETI with the VL, we would recommend the use of VL for prehospital airway management in physician-based rescue systems.

Indexed as

air ambulanceairway managementintubationlaryngoscopyprehospital carerescue helicoptervideo

Identifiers

PMID32842705
PMCPMC7564813

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.