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Bulbocavernosus ReflexNCT04316195

Evaluation of the Bulbocavernosus Reflex After Acute Spinal Cord Injury

An observational study of Bulbocavernosus Reflex and Spinal Cord Injuries, run by Andréane Richard-Denis at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The purpose of this study is to evaluate the possibility to use electromyography in acute phase after a traumatic spinal cord injury to measure quantitatively and objectively the bulbocavernosus reflex. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Bulbocavernosus Reflex, Spinal Cord Injuries
What is being tested?
Assessment of the bulbocavernosus reflex
How many people
20 participants
Where
1 siteCanada
Study dates
1 Aug 2020to 31 Aug 2021
How long will I take part?
3 Months
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patient admitted to the Hôpital du Sacré-Coeur de Montréal for a traumatic spinal injury.

Who may be able to join

  • male or female age of 18 years or older
  • patient with fracture, fracture-dislocation or vertebral dislocation from C0 to T12 inclusively
  • patient with neurological impairment involving the motor spinal cord (severity AIS grade A or B) on initial assessment
  • patient admitted to Hôpital du Sacré-Coeur de Montréal within 72 hours for trauma
  • patient transfer to intensive functional rehabilitation

Who cannot join

  • pregnancy
  • suspicion of sacral nerve damage (caused by trauma or other co-morbidities)
  • spinal cord syndrome (caused by trauma or other comorbidities) or spinal cord signal abnormality on magnetic resonance imaging
  • pre-existing major neurological impairment (e.g. stroke, Parkinson's disease, etc.)
  • inability to consent (coma, delirium, etc.)
  • perineal injury preventing the sacral EMG procedure

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • CIUSSS du Nord-de-l'île-de-Montréal-Hôpital du Sacré-Cœur de Montréal

    Montreal, Quebec, H4J 1C5

Other trials in Canada

About this study

Official title: Electromyographic Evaluation of the Bulbocavernosus Reflex After Acute Spinal Cord Injury: a New Prognostic Concept

The purpose of this study is to evaluate the possibility to use electromyography in acute phase after a traumatic spinal cord injury to measure quantitatively and objectively the bulbocavernosus reflex. This study also aims to determine if there is a relationship between the bulbocavernosus reflex and neuro-functional recovery 3 months after a traumatic spinal cord injury. To do so, 20 patients admitted for acute traumatic spinal cord injury will be recruited prospectively. Within 72 hours post-trauma, the bulbocavernous reflex of all participants will be assessed according to the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) and by electromyography. Neurological improvement during the rehabilitation process and functional status at 3 months following the traumatic spinal cord injury will also be assessed.

Read the detailed description

Traumatic spinal cord injuries cause severe neurological deficits (motor, sensory and autonomic disorders). Affected individuals have functional limitations and a reduced quality of life that result in high medical and social costs. Some studies have shown that early rehabilitation improves recovery. It seems therefore essential to optimize patient management in the acute phase in order to improve interventions and optimize their functional recovery.

A major barrier to early patient management is associated with a lack of knowledge about the neurophysiological mechanisms of acute spinal cord injury. Moreover, early assessment of prognosis is still difficult to make. The early assessment is based almost exclusively on the clinical neurological examination and does not include an objective measurement of underlying neurophysiological processes. The possibility to establish an accurate neuro-functional prognosis at an early stage will have the advantage to guide clinical decision, allow the development of an appropriate rehabilitation plan and figure out the long-term needs of the patient while promoting better collaboration.

Clinical neurological examination includes among other things, the evaluation of the bulbocavernosus reflex. The purpose of this study is to evaluate the possibility to use electromyography in acute phase after a traumatic spinal cord injury to measure quantitatively and objectively the bulbocavernosus reflex. This study also aims to determine if there is a relationship between the bulbocavernous reflex and neuro-functional recovery 3 months after a traumatic spinal cord injury.

The bulbocavernous reflex of patients admitted for acute traumatic spinal cord injury will be assessed within 72 hours post-trauma according to the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) and by electromyography. Neurological improvement during the rehabilitation process and functional status at 3 months following the traumatic spinal cord injury will also be assessed. Descriptive analyses will be proposed to characterize the bulbocavernous reflex obtained by electromyography evaluation. Comparative analyses will be carried out to describe the characteristics of patients with different bulbocavernosus reflex stimulation thresholds. Correlations will also be established to determine the relationship between the electromyography evaluation of the bulbocavernosus reflex and the neurological and functional improvement of the patient.

Being tested
Assessment of the bulbocavernosus reflex
Keywords
Bulbocavernosus reflex following a traumatic spinal cord injury
Medical subject headings
Spinal Cord Injuries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Assessment of the bulbocavernosus reflexDiagnostic test

    According to the International Standards for Neurological Classification of Spinal Cord : The standard examination consists of the contraction of the bulbocavernous muscle following stimulation of the glans of the penis in men and of the clitoris in women.

    By electromyography: The electromyography consists to stimulate the bulbocavernosus reflex with a bipolar probe apply on the glans for men, and on the clitoris in women. A surface electrode will be positioned on the right or left bulbocavernous muscle at the base of the penis (or vagina) and the anus for recording. The bulbocavernous reflex will be obtained by stimulation at a frequency of 1.5Hz and an amplitude of 14 to 47 mA.

Study groups in NCT04316195
Study groupRoleWhat they receive
Patient admitted for an acute traumatic spinal cord injuryNot described
Receives: Diagnostic Test: Assessment of the bulbocavernosus reflex

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Characterize the bulbocavernosus reflex using electromyographic assessment within 72 hours of a traumatic spinal cord injury

    Determine stimulation threshold, latency and amplitude of the signal

    Measured: During the acute care hospitalization, max 72 hours

  2. Determine the relationship between the bulbocavernosus reflex and the neurological and functional recovery of patients 3 months after a traumatic spinal cord injury

    Related neurological and functional improvement according to acute electromyographic reflex measurement

    Measured: After hospitalization, 3 months post operation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Mar 2020
  2. Study start1 Aug 2020 (estimated)
  3. Primary completion31 Aug 2021 (estimated)
  4. Study completion31 Aug 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
20 participants (estimated)
Target duration
3 Months
IDs, dates and publications
ClinicalTrials.gov ID
NCT04316195
Sponsor's protocol ID
2019-1709
Status last verified
Mar 2020
First submitted
18 Mar 2020
Last updated
20 Mar 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Richard-Denis A, Beausejour M, Thompson C, Nguyen BH, Mac-Thiong JM. Early Predictors of Global Functional Outcome after Traumatic Spinal Cord Injury: A Systematic Review. J Neurotrauma. 2018 Aug 1;35(15):1705-1725. doi: 10.1089/neu.2017.5403. Epub 2018 Apr 17.

    PubMed 29455634
  • Simpson LA, Eng JJ, Hsieh JT, Wolfe DL; Spinal Cord Injury Rehabilitation Evidence Scire Research Team. The health and life priorities of individuals with spinal cord injury: a systematic review. J Neurotrauma. 2012 May 20;29(8):1548-55. doi: 10.1089/neu.2011.2226. Epub 2012 Apr 18.

    PubMed 22320160
  • Richard-Denis A, Thompson C, Mac-Thiong JM. Quality of life in the subacute period following a cervical traumatic spinal cord injury based on the initial severity of the injury: a prospective cohort study. Spinal Cord. 2018 Nov;56(11):1042-1050. doi: 10.1038/s41393-018-0178-8. Epub 2018 Jul 3.

    PubMed 29970920
  • Krueger H, Noonan VK, Trenaman LM, Joshi P, Rivers CS. The economic burden of traumatic spinal cord injury in Canada. Chronic Dis Inj Can. 2013 Jun;33(3):113-22. English, French.

    PubMed 23735450
  • Hachem LD, Ahuja CS, Fehlings MG. Assessment and management of acute spinal cord injury: From point of injury to rehabilitation. J Spinal Cord Med. 2017 Nov;40(6):665-675. doi: 10.1080/10790268.2017.1329076. Epub 2017 Jun 1.

    PubMed 28571527
  • Dvorak MF, Noonan VK, Fallah N, Fisher CG, Rivers CS, Ahn H, Tsai EC, Linassi AG, Christie SD, Attabib N, Hurlbert RJ, Fourney DR, Johnson MG, Fehlings MG, Drew B, Bailey CS, Paquet J, Parent S, Townson A, Ho C, Craven BC, Gagnon D, Tsui D, Fox R, Mac-Thiong JM, Kwon BK. Minimizing errors in acute traumatic spinal cord injury trials by acknowledging the heterogeneity of spinal cord anatomy and injury severity: an observational Canadian cohort analysis. J Neurotrauma. 2014 Sep 15;31(18):1540-7. doi: 10.1089/neu.2013.3278. Epub 2014 Jul 8.

    PubMed 24811484
  • Kirshblum SC, Burns SP, Biering-Sorensen F, Donovan W, Graves DE, Jha A, Johansen M, Jones L, Krassioukov A, Mulcahey MJ, Schmidt-Read M, Waring W. International standards for neurological classification of spinal cord injury (revised 2011). J Spinal Cord Med. 2011 Nov;34(6):535-46. doi: 10.1179/204577211X13207446293695. No abstract available.

    PubMed 22330108
  • Consortium for Spinal Cord Medicine. Early acute management in adults with spinal cord injury: a clinical practice guideline for health-care professionals. J Spinal Cord Med. 2008;31(4):403-79. doi: 10.1043/1079-0268-31.4.408. No abstract available.

    PubMed 18959359
  • Podnar S. Neurophysiologic studies of the penilo-cavernosus reflex: normative data. Neurourol Urodyn. 2007;26(6):864-9. doi: 10.1002/nau.20411.

    PubMed 17335052
  • Granata G, Padua L, Rossi F, De Franco P, Coraci D, Rossi V. Electrophysiological study of the bulbocavernosus reflex: normative data. Funct Neurol. 2013 Oct-Dec;28(4):293-5.

    PubMed 24598398
  • Fehlings MG, Tetreault LA, Aarabi B, Anderson P, Arnold PM, Brodke DS, Chiba K, Dettori JR, Furlan JC, Harrop JS, Hawryluk G, Holly LT, Howley S, Jeji T, Kalsi-Ryan S, Kotter M, Kurpad S, Kwon BK, Marino RJ, Martin AR, Massicotte E, Merli G, Middleton JW, Nakashima H, Nagoshi N, Palmieri K, Singh A, Skelly AC, Tsai EC, Vaccaro A, Wilson JR, Yee A, Burns AS. A Clinical Practice Guideline for the Management of Patients With Acute Spinal Cord Injury: Recommendations on the Type and Timing of Rehabilitation. Global Spine J. 2017 Sep;7(3 Suppl):231S-238S. doi: 10.1177/2192568217701910. Epub 2017 Sep 5.

    PubMed 29164029

Questions about this trial

What is this clinical trial studying?

An observational study of Bulbocavernosus Reflex and Spinal Cord Injuries, run by Andréane Richard-Denis at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 20 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Characterize the bulbocavernosus reflex using electromyographic assessment within 72 hours of a traumatic spinal cord injury (time frame: During the acute care hospitalization, max 72 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04316195, which also lists 11 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Mar 2020.

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