- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03966547
Changes in Cerebral Blood Flow (CBF) in Prone and Sitting Position Before and After GSP-block and Before and After Epidural Blood-patch: A Substudy of NCT03652714
Study Overview
Status
Study Type
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Copenhagen, Denmark
- Rigshospitalet, University of Copenhagen
-
Copenhagen, Denmark, 2400
- Bispebjerg and Frederiksberg Hospital, University of Copenhagen
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Study Population:
Subjects who have consented to participate in GSPB-2018 will be approached for participation in this sub-study. Subjects who have consented to participate in GSPB-2018 are not required to participate in this sub-study.
Inclusion Criteria:
- Age > 18 years
- Patients with postdural puncture headache defined as moderate to severe postural headache (VAS >= 30mm) after lumbar puncture or accidental dural puncture during epidural insertion with an onset within 3 days following the puncture.
- Lack of headache remission within 1 day after dural puncture and after treatment with fluids, caffeine and paracetamol
- Patients who have given their written informed consent for participation in the study and substudy after fully understanding the protocol content and limitations.
Exclusion Criteria:
- Patients who cannot cooperate to the study
- Patients who does not understand or speak Danish
- Allergy to the drugs used in the study
- Has taken opioids within 12 hours prior to intervention
- No possible transcranial window on transcranial doppler. If not possible to find a useable window to get measurement the patient will be excluded and replaced with another patient.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Local anesthetic
|
Block performed with bilaterally inserted q-tips with 1:1 mixture of lidocaine 40mg/ml and ropivacaine 5mg/mL as per GSPB-2018.
|
Placebo Comparator: Isotonic NaCl
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Block performed with bilaterally inserted q-tips with isotone NaCl as per GSPB-2018.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Cerebral Blood Flow velcity (CBF) in supine versus upright position compared to effect of treatment.
Time Frame: <1h before and 1 hour after each intervention
|
Change in mean, minimum and maximum Cerebral Blood Flow velcity in cm/sec (CBF) in supine versus upright position compared to effect of treatment.
|
<1h before and 1 hour after each intervention
|
Comparison of paint rating (0-100 on a visual analogue scale, VAS) and Cerebral Blood Flow velocity (CBF) before and after each intervention.
Time Frame: <1h before and 1 hour after each intervention
|
Pain intensity measured with a pain rating (0-100mm on a visual analogue scale, VAS) in supine position and as worst experienced pain after the patient has been upright for 30 seconds or the worst experienced pain while attempting to stand if the rating has to be interrupted. Cerebral Blood Flow velocity (CBF) measured as mean blood flow in cm/sec. |
<1h before and 1 hour after each intervention
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Cerebral Blood Flow velocity (CBF) in supine position before and after interventions.
Time Frame: <1h before and 1 hour after each intervention
|
Changes in mean, minimum and maximum Cerebral Blood Flow velocity in cm/sec (CBF) before and after treatment.
|
<1h before and 1 hour after each intervention
|
Collaborators and Investigators
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
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Pain
- Neurologic Manifestations
- Headache Disorders
- Headache Disorders, Secondary
- Headache
- Post-Dural Puncture Headache
- Physiological Effects of Drugs
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Sensory System Agents
- Anesthetics
- Anesthetics, Local
Other Study ID Numbers
- GSPB-2018-SUB
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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