NCT06544980

Brief Summary

In our study, the investigators sought to answer the question of how the retroglossal pharyngeal areas measured after extubation of patients compare to baseline (before muscle relaxation) values. The investigators also investigated how these areas change as a function of TOF ratios measured at extubation, thus looking for a correlation between residual muscle relaxant effect and airway area.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 2, 2024

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

August 5, 2024

Completed
4 days until next milestone

First Posted

Study publicly available on registry

August 9, 2024

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

August 12, 2024

Status Verified

August 1, 2024

Enrollment Period

2 years

First QC Date

August 5, 2024

Last Update Submit

August 8, 2024

Conditions

Keywords

residual neuromuscular blockadepostoperative airway obstructionelectromyography

Outcome Measures

Primary Outcomes (1)

  • The differences in retroglossal pharyngeal cross sectional areas (inspiration and exspiration) measured at different TOF values

    The differences in retroglossal pharyngeal cross sectional areas (inspiration and exspiration) measured at different train of four TOF values, and changes in these values compared to (initial) retroglossae pharyngeal areas detected before administration of muscle relaxants. Areas are measured in pixels and the rate of reduction of areas is expressed as a percentage.

    before intubation, after extubation of the trachea

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who receive a muscle relaxant (rocuronium bromide) for their operation to aid intubation and surgical exploration.

You may qualify if:

  • Age: 18-65 years;
  • ASA 1-3;
  • BMI 18.5-25 (normal body weight);
  • men/women in equal proportion;
  • duration of surgeries at least ≥ 30 minutes;
  • intervention requiring intratracheal intubation;
  • patients are in a supine position.

You may not qualify if:

  • diseases affecting neuromuscular function (myopathies, severe liver and kidney failure);
  • drugs affecting neuromuscular function (magnesium, aminoglycosides);
  • difficult airway, expected difficult intubation;
  • pregnancy (pregnancy test for women of childbearing age to rule out pregnancy we finish);
  • breastfeeding;
  • acute surgery;
  • COPD
  • glaucoma

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Debrecen

Debrecen, Hajdú-Bihar, 4008, Hungary

RECRUITING

Related Publications (12)

  • Murphy GS, Szokol JW, Marymont JH, Greenberg SB, Avram MJ, Vender JS. Residual neuromuscular blockade and critical respiratory events in the postanesthesia care unit. Anesth Analg. 2008 Jul;107(1):130-7. doi: 10.1213/ane.0b013e31816d1268.

    PMID: 18635478BACKGROUND
  • Ledowski T, Hillyard S, O'Dea B, Archer R, Vilas-Boas F, Kyle B. Introduction of sugammadex as standard reversal agent: Impact on the incidence of residual neuromuscular blockade and postoperative patient outcome. Indian J Anaesth. 2013 Jan;57(1):46-51. doi: 10.4103/0019-5049.108562.

    PMID: 23716766BACKGROUND
  • Sundman E, Witt H, Olsson R, Ekberg O, Kuylenstierna R, Eriksson LI. The incidence and mechanisms of pharyngeal and upper esophageal dysfunction in partially paralyzed humans: pharyngeal videoradiography and simultaneous manometry after atracurium. Anesthesiology. 2000 Apr;92(4):977-84. doi: 10.1097/00000542-200004000-00014.

    PMID: 10754616BACKGROUND
  • Arbous MS, Meursing AE, van Kleef JW, de Lange JJ, Spoormans HH, Touw P, Werner FM, Grobbee DE. Impact of anesthesia management characteristics on severe morbidity and mortality. Anesthesiology. 2005 Feb;102(2):257-68; quiz 491-2. doi: 10.1097/00000542-200502000-00005.

    PMID: 15681938BACKGROUND
  • Eikermann M, Vogt FM, Herbstreit F, Vahid-Dastgerdi M, Zenge MO, Ochterbeck C, de Greiff A, Peters J. The predisposition to inspiratory upper airway collapse during partial neuromuscular blockade. Am J Respir Crit Care Med. 2007 Jan 1;175(1):9-15. doi: 10.1164/rccm.200512-1862OC. Epub 2006 Oct 5.

    PMID: 17023729BACKGROUND
  • Herbstreit F, Peters J, Eikermann M. Impaired upper airway integrity by residual neuromuscular blockade: increased airway collapsibility and blunted genioglossus muscle activity in response to negative pharyngeal pressure. Anesthesiology. 2009 Jun;110(6):1253-60. doi: 10.1097/ALN.0b013e31819faa71.

    PMID: 19417617BACKGROUND
  • Kirmeier E, Eriksson LI, Lewald H, Jonsson Fagerlund M, Hoeft A, Hollmann M, Meistelman C, Hunter JM, Ulm K, Blobner M; POPULAR Contributors. Post-anaesthesia pulmonary complications after use of muscle relaxants (POPULAR): a multicentre, prospective observational study. Lancet Respir Med. 2019 Feb;7(2):129-140. doi: 10.1016/S2213-2600(18)30294-7. Epub 2018 Sep 14.

    PMID: 30224322BACKGROUND
  • Blobner M, Hunter JM, Meistelman C, Hoeft A, Hollmann MW, Kirmeier E, Lewald H, Ulm K. Use of a train-of-four ratio of 0.95 versus 0.9 for tracheal extubation: an exploratory analysis of POPULAR data. Br J Anaesth. 2020 Jan;124(1):63-72. doi: 10.1016/j.bja.2019.08.023. Epub 2019 Oct 10.

    PMID: 31607388BACKGROUND
  • Heier T, Caldwell JE, Feiner JR, Liu L, Ward T, Wright PM. Relationship between normalized adductor pollicis train-of-four ratio and manifestations of residual neuromuscular block: a study using acceleromyography during near steady-state concentrations of mivacurium. Anesthesiology. 2010 Oct;113(4):825-32. doi: 10.1097/ALN.Ob013e3181ebddca.

    PMID: 20808216BACKGROUND
  • Nemes R, Fulesdi B, Pongracz A, Asztalos L, Szabo-Maak Z, Lengyel S, Tassonyi E. Impact of reversal strategies on the incidence of postoperative residual paralysis after rocuronium relaxation without neuromuscular monitoring: A partially randomised placebo controlled trial. Eur J Anaesthesiol. 2017 Sep;34(9):609-616. doi: 10.1097/EJA.0000000000000585.

    PMID: 28030444BACKGROUND
  • Fuchs-Buder T, Claudius C, Skovgaard LT, Eriksson LI, Mirakhur RK, Viby-Mogensen J; 8th International Neuromuscular Meeting. Good clinical research practice in pharmacodynamic studies of neuromuscular blocking agents II: the Stockholm revision. Acta Anaesthesiol Scand. 2007 Aug;51(7):789-808. doi: 10.1111/j.1399-6576.2007.01352.x.

    PMID: 17635389BACKGROUND
  • Naguib M, Brull SJ, Kopman AF, Hunter JM, Fulesdi B, Arkes HR, Elstein A, Todd MM, Johnson KB. Consensus Statement on Perioperative Use of Neuromuscular Monitoring. Anesth Analg. 2018 Jul;127(1):71-80. doi: 10.1213/ANE.0000000000002670.

    PMID: 29200077BACKGROUND

MeSH Terms

Conditions

Delayed Emergence from Anesthesia

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • László Asztalos, MD, PhD

    Department of Anesthesiology and Intensive Care University of Debrecen

    PRINCIPAL INVESTIGATOR

Central Study Contacts

László Asztalos, MD, PhD

CONTACT

Erzsébet Igbonu-Nagy, BSC

CONTACT

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Head, Division of General, Vascular and Thoracic Anesthesia

Study Record Dates

First Submitted

August 5, 2024

First Posted

August 9, 2024

Study Start

January 2, 2024

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

August 12, 2024

Record last verified: 2024-08

Locations