- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04977531
H-reflex Measurement in Hemiplegic Stroke Patients
Study Overview
Status
Conditions
Detailed Description
Stroke is a condition that insufficient brain blood supply due to ischemia or hemorrhage causes brain cell death, which impacts normal function of motor, sensory, and speech, depending on the damaged location. Over the world wide, the incidence of stroke is 119 per 100,000 population per year with death rate up to 10-42% in one month after stroke. The survivor developed varying degrees of spasticity up to 42.6%.
In the conventional physical examination, modified Ashworth scale is used to evaluate spasticity, but its results may be influenced by temperature, joints range of motion, subjective judgement by tester or patient's nervousness. In the previous studies, spasticity between hemiplegic side and sound side showed significant difference in ratio of H/M amplitude, H/M threshold and H/M slope. Among them, H/M slope is the most sensitive tool and may be correlated to increased spasticity because H/M slope showed higher value in people with Brunnstrom stage III.
However, patients included in previous studies had disease onset over 2 years. The gold recovery stage after stroke is within 6 months. During this time, many methods can be used to reduce spasticity, such as medicine, stretching exercise, and injection. Therefore, it is very important whether H/M ratio for spasticity evaluation can be performed in patients with disease onset less than 2 years.
In our study, according to onset time, participants will be assigned to three groups: less than 6 months, 6 months to 2 years, and over 2 years. All the participants will accept electrophysiological test over four limbs to collect data of H/M ratio of slope, maximal amplitude and threshold. Hemiplegic side will be compared with sound side for significant difference. The relation between H/M ratio and modified Ashworth Scale will also be identified.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Heng-Yi Shen, MD
- Phone Number: +886911733228
- Email: leon15987@gmail.com
Study Contact Backup
- Name: Szu-fu Chen, MD, PHD
- Phone Number: +886-2-28264400
- Email: szufuchen@yahoo.com.tw
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Single episode of stroke
- Single side hemiplegia after stroke
Exclusion Criteria:
- Other diagnosis of neurovascular disease or major cardiovascular disease
- Poor cognition
- Poor cooperation
- Aphasia
- People who can not tolerate the exam
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
---|
6 months less
Stroke onset less than 6 months
|
6 months to 2 years
Stroke onset between 6 months and 2 years
|
over 2 years
Stroke onset over 2 years
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Nerve conduction study (H/M slope)
Time Frame: 30 minutes
|
To compare the hemiplegic side and sound side difference, investigators will exam four limbs twice and obtain two data of H and M. Electrodes were placed on each limb and the electrical impulse from low to high ampere will elicit several data of H and M from low to high values.
Average of H slope will be calculated and divided by average of M slope, without unit.
|
30 minutes
|
Nerve conduction study (H/M maximal amplitude)
Time Frame: 30 minutes
|
To compare the hemiplegic side and sound side difference, investigators will exam four limbs twice and obtain two data of H and M. Electrodes were placed on each limb and the electrical impulse from low to high ampere will elicit several data of H and M from low to high values.
Maximal H value will be divided by maximal M value, without unit.
|
30 minutes
|
Nerve conduction study (H/M threshold)
Time Frame: 30 minutes
|
To compare the hemiplegic side and sound side difference, investigators will exam four limbs twice and obtain two data of H and M. Electrodes were placed on each limb and the electrical impulse from low to high ampere will elicit several data of H and M from low to high values.
The ampere which elicited first data of H or M will be the threshold.
The threshold of H will be divided by the threshold of M, without unit.
|
30 minutes
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
H/M slope and modified Ashworth Scale(MAS)
Time Frame: 30 minutes
|
Investigators will evaluate if increasing H/M slope is positively correlated with increasing modified Ashworth Scale(MAS).
The MAS is used to measure muscle tone, with score of 0, 1, 1+, 2, 3, 4. The higher score means the higher muscle tone.
|
30 minutes
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Szu-fu Chen, MD, PHD, Cheng-Hsin general hospital
Publications and helpful links
General Publications
- Wissel J, Verrier M, Simpson DM, Charles D, Guinto P, Papapetropoulos S, Sunnerhagen KS. Post-stroke spasticity: predictors of early development and considerations for therapeutic intervention. PM R. 2015 Jan;7(1):60-7. doi: 10.1016/j.pmrj.2014.08.946. Epub 2014 Aug 27.
- Thrift AG, Thayabaranathan T, Howard G, Howard VJ, Rothwell PM, Feigin VL, Norrving B, Donnan GA, Cadilhac DA. Global stroke statistics. Int J Stroke. 2017 Jan;12(1):13-32. doi: 10.1177/1747493016676285. Epub 2016 Oct 28.
- Koton S, Schneider AL, Rosamond WD, Shahar E, Sang Y, Gottesman RF, Coresh J. Stroke incidence and mortality trends in US communities, 1987 to 2011. JAMA. 2014 Jul 16;312(3):259-68. doi: 10.1001/jama.2014.7692.
- Bejot Y, Bailly H, Durier J, Giroud M. Epidemiology of stroke in Europe and trends for the 21st century. Presse Med. 2016 Dec;45(12 Pt 2):e391-e398. doi: 10.1016/j.lpm.2016.10.003. Epub 2016 Nov 2.
- Hendricks HT, van Limbeek J, Geurts AC, Zwarts MJ. Motor recovery after stroke: a systematic review of the literature. Arch Phys Med Rehabil. 2002 Nov;83(11):1629-37. doi: 10.1053/apmr.2002.35473.
- Stowe AM, Hughes-Zahner L, Stylianou AP, Schindler-Ivens S, Quaney BM. Between-day reliability of upper extremity H-reflexes. J Neurosci Methods. 2008 May 30;170(2):317-23. doi: 10.1016/j.jneumeth.2008.01.031. Epub 2008 Mar 10.
- Aloraini SM, Gaverth J, Yeung E, MacKay-Lyons M. Assessment of spasticity after stroke using clinical measures: a systematic review. Disabil Rehabil. 2015;37(25):2313-23. doi: 10.3109/09638288.2015.1014933. Epub 2015 Feb 18.
- Funase K, Higashi T, Yoshimura T, Imanaka K, Nishihira Y. Evident difference in the excitability of the motoneuron pool between normal subjects and patients with spasticity assessed by a new method using H-reflex and M-response. Neurosci Lett. 1996 Jan 19;203(2):127-30. doi: 10.1016/0304-3940(95)12284-2.
- Walton C, Kalmar J, Cafarelli E. Caffeine increases spinal excitability in humans. Muscle Nerve. 2003 Sep;28(3):359-64. doi: 10.1002/mus.10457.
- Phadke CP, Robertson CT, Condliffe EG, Patten C. Upper-extremity H-reflex measurement post-stroke: reliability and inter-limb differences. Clin Neurophysiol. 2012 Aug;123(8):1606-15. doi: 10.1016/j.clinph.2011.12.012. Epub 2012 Jan 23.
- Higashi T, Funase K, Kusano K, Tabira T, Harada N, Sakakibara A, Yoshimura T. Motoneuron pool excitability of hemiplegic patients: assessing recovery stages by using H-reflex and M response. Arch Phys Med Rehabil. 2001 Nov;82(11):1604-10. doi: 10.1053/apmr.2001.25081.
Study record dates
Study Major Dates
Study Start (ANTICIPATED)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Cardiovascular Diseases
- Vascular Diseases
- Cerebrovascular Disorders
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Neurologic Manifestations
- Musculoskeletal Diseases
- Muscular Diseases
- Neuromuscular Manifestations
- Paralysis
- Muscle Hypertonia
- Stroke
- Hemiplegia
- Muscle Spasticity
Other Study ID Numbers
- (868)110-14
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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