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RecruitingNCT06537531VCIUpdated Jan 6, 2026

Video Classification of Intubation in Spain (VCI)

An observational study in Difficult Intubation, sponsored by Clinica Universidad de Navarra, Universidad de Navarra. Recruiting at 2 sites in Spain. Open to participants aged 18 Years to 90 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-01-06.

Sponsored by Clinica Universidad de Navarra, Universidad de Navarra · Observational

From the registry’s dates

  • Started Jul 2024; still recruiting 2 years 2 months later.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
1,500
Ages
18 Years to 90 Years
Sex
All
01

Study summary

Use of VCI in Spain

Read the detailed description

The clinical importance of airway management has gained relevance over the last decade in most scientific societies with the objective of improving the standard of care.

The WHO has focused its guidelines on "Safe Surgery," aiming to encompass all methods that predict and recognize the risk of difficult airway management or aspiration, which must be applied by the surgical team. To this end, it has created and implemented a surgical safety checklist that can be useful in reducing the risk of unidentified difficulties.

The same suggestion has been included in the Helsinki Declaration on Patient Safety in Anesthesiology, endorsed by most European entities in cooperation with the European Society of Anesthesiology (ESA), the European Board of Anesthesiology (EBA-UEMS), the World Federation of Societies of Anesthesiology (WFA), and the European Patients' Federation (EPF). The protocol for difficult airway management and the implications of the Helsinki Declaration were published in 2013 in the Spanish Journal of Anesthesiology and Resuscitation.

Airway management today is perhaps the field that most concerns anesthesiologists, as decisions and actions must be taken quickly and effectively when facing a potential difficult airway (DA). Failure to do so would result in significant morbidity and mortality for patients.

The incidence of difficulty in orotracheal intubation (OTI) ranges between 1.5% and 13%. Most errors in airway management are due to ignorance and the low reliability of traditional protocols, algorithms, and combinations of detection tools to identify a potentially difficult airway.

This field is constantly evolving, and in the last 20 years, we have witnessed the emergence of a large number of devices: Supraglottic Devices (SGDs) or Extraglottic Devices (EGDs) in the past decade, and Optical Devices (videolaryngoscopes) in this last decade.

The existence of a large number of new devices in this field implies a deep understanding of these, both theoretically and practically, during scheduled surgery. Once this is achieved, practitioners should know how to use them appropriately in DA situations.

Since 1993, when the American Society of Anesthesiology (ASA) published its "Recommendations for Difficult Airway Management," many countries and scientific societies have created their protocols, guidelines, and algorithms that we must know and apply, always adapting them to our environment and the available devices.

In Spain, since the mid-1990s, DA training programs for specialist doctors have been launched, gradually expanding and covering all personnel involved in airway management. Today, training in this field has become part of the knowledge and skills acquisition in various specialties, notably Anesthesiology and Resuscitation.

The phrase "prevention is better than cure" is an intuitive, acceptable, and politically correct concept. This is applicable in our field since, although there are not many patient factors we can modify (anatomy is intrinsic), there are possible modifications in our actions that can determine the success or failure in airway management.

Currently, there is no universally accepted method for describing tracheal intubation via videolaryngoscopy. It is important that this information is communicated and documented accurately to plan airway management procedures for the patient, thereby improving care safety. The Intubation Classification Scale or Video Intubation Classification (VCI) score has been proposed to succinctly describe the key practical elements of tracheal intubation via videolaryngoscopy in the order they are performed. This classification consists of three sections: the first describes the type of blade used (Macintosh or hyperangulated), the second describes the POGO (Percentage of Glottic Opening) at the time of intubation, and finally, the ease/difficulty or impossibility of inserting the tube through the glottis.

02

Conditions studied

  • Difficult Intubation

Keywords

  • Difficult intubation
  • Airway
  • Videolaryngoscopy
  • Score
03

In context

Lead sponsor

Clinica Universidad de Navarra, Universidad de Navarra is the lead sponsor of 158 studies on the registry; 36 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients from any geographical area of the Iberian Peninsula who decide to undergo scheduled surgery at our hospital during a period of 6 months (2024-25).

Inclusion criteria

  • Patients from any geographical area of the Iberian Peninsula who decide to undergo scheduled surgery at our hospital during a period of 6 months (2024-25).

Exclusion criteria

Exclusion Criteria:

  • Age \<18
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
1,500 participants (estimated)
Patient registry
No

Groups and cohorts

  • Patients

    Patients from any geographical area of the Iberian Peninsula who decide to undergo scheduled surgery at our hospital during a period of 6 months (2024-25).

    Other: Compare VCI scale

Interventions

  • OtherCompare VCI scale

    Compare VCI scale

06

What researchers measure

Primary outcomes

  1. VCI scale from observer (1-4)

    VCI scale from observer(1-4)

    Time frame: 2 minutes

  2. VCI scale from intubator (1-4)

    VCI scale from intubator (1-4)

    Time frame: 2 minutes

07

Study locations

2 of 2 sites recruiting
  • Clinica Universidad de Navarra
    Madrid, Madrid 28027, Spain
    Recruiting
  • Miguel Angel Fernandez-Vaquero
    Madrid, Madrid 28027, Spain
    • Miguel Angel Fernandez-Vaquero, MD, PhD · Contact · mfvaquero@unav.es · 0034913531920
    Recruiting
08

References and documents

Publications

  • Fernandez-Vaquero MA, Charco-Mora P, Sastre-Rincon JA, Gomez-Rios MA, Cardenas-Gomez J, Martinez-Hurtado E, Aracil-Escoda N, Vallejo-Tarrat A, Thion-Soriano I, Peral-Sanchez D, Castaneda-Pascual M, Rodriguez Del Rio M, de Luis-Cabezon N, Gonzalez-Garcia J, Acosta-Martinez J, Gonzalez-Santos S, Onrubia-Fuertes X, Martinez-Gonzalez E, Roca de Togores-Lopez A, Gonzalez-Mendibil I, Banos-Maestro A, Mariscal-Flores M, Lluch-Oltra A, Emazabel-Yunta I, Rodriguez-Sanabria DM, Alvarez-Avello JM, Melendez Salinas DA, Lopez-Correa T, Sanchez-Merchante M, Bermudez-Lopez M, Martinez-Gallego E, Martinez-Segovia MC, Martin-Andres AB, Molero-Diez Y, Garcia-Aroca MA, Tapia-Salinas B, Puig-Bernabe J, Piano A, Hernandez-Fernandez G, Mingote-Llado A, Garcia-Fernandez J, Mata-Estevez J, Reviriego-Agudo L, Ruiz-Cordoba G, Moya-Moradas J, Marques-Asin FJ, Santacana MV; VCISpain Trial Investigators Group. VCISpain: protocol for a prospective multicenter observational study to validate a standardized classification tool for tracheal intubation using videolaryngoscopy. Braz J Anesthesiol. 2025 Sep-Oct;75(5):844653. doi: 10.1016/j.bjane.2025.844653. Epub 2025 Jun 18. PubMed 40553732 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06537531
Lead sponsor
Clinica Universidad de Navarra, Universidad de Navarra
Responsible party
Sponsor
First posted
Aug 5, 2024
Start date
Jul 26, 2024
Primary completion
Aug 1, 2026 (estimated)
Completion
Dec 1, 2026 (estimated)
Last update
Jan 6, 2026

Study contacts

Miguel Angel Fernandez-Vaquero, MD, PhD
Contact
mfvaquero@unav.es
0034913531920 ext. 7633

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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