Effectiveness of Nebulized Dexmedetomidine for Treatment of Obstetric Post-Dural Puncture Headache
NCT ID: NCT04327726
Last Updated: 2021-05-12
Study Results
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Basic Information
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COMPLETED
NA
43 participants
INTERVENTIONAL
2020-05-01
2021-02-28
Brief Summary
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Dexmedetomidine is a highly selective, centrally acting α2-adrenergic agonist with analgesic and anxiolytic effects. Moreover, it decreases cerebral blood flow (CBF) in humans and animals secondary to cerebrovascular vasoconstriction. It has been used via the intranasal and inhalational routes for many purposes including premedication, sedation and postoperative analgesia. Because of its desirable properties, we hypothesized that dexmedetomidine nebulization could be effective in the treatment of patients suffering from PDPH after caesarean section.
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Detailed Description
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The cause of PDPH is not entirely known but there is a considerable evidence support the explanation of the low cerebrospinal fluid (CSF) pressure resulting from continuous CSF leak through the tear in meninges that exceeds the CSF production rate as a main cause of PDPH. As little as 10% CSF volume loss could induce PDPH from the traction on the pain sensitive intracranial structures in the upright position combined with reflex vasodilatation. Several treatment options have been proposed which are usually consisting of bed rest in supine position, fluid therapy, analgesics, sumatriptan and caffeine. Epidural blood patch remained the gold standard therapy but it is an invasive technique.
Dexmedetomidine (Dex) is a highly selective centrally acting α2-adrenoreceptor agonist that produces cooperative sedation, anxiolysis, and analgesia with minimal respiratory depression. Moreover it was found to attenuate the stress and inflammatory response to anesthetic and surgical procedures. Stimulation of α2-receptors in substantia gelatinosa of the dorsal horn leads to suppression of nociceptive neurons firing and inhibition of substance-P release also, its stimulation in the locus coeruleus area which is known to be a significant nociceptive transmission modulator terminates pain signals transmission resulting in analgesia. Additionally, an existing literature supports that Dex decreases cerebral blood flow (CBF) in humans and animals secondary to cerebrovascular vasoconstriction. Thus, the use of Dex might be a useful adjunct in certain situations that require cerebral vasoconstriction together with analgesia such as PDPH. The present study will be undertaken to test this hypothesis.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
TRIPLE
Study Groups
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Control group
received ultrasonic nebulization of 4mL 0.9% saline twice daily for 3 days
0.9% Saline Nebulization
nebulization of 4mL 0.9% saline
Dexmedetomidine group
received ultrasonic nebulization of 1 µg/kg dexmedetomidine diluted in 4mL 0.9% saline twice daily for 3 days. The intervention will be continued until achieving a VAS score ≤3 and Lybecker et al. classification score \<2 and or for a maximum of 72 hours. Patients in this group who achieved the target scores before 72 hours will be given 4ml of saline 0.9% nebulization to maintain blinding.
Dexmedetomidine Nebulization
ultrasonic nebulization of 1 µg/kg dexmedetomidine for PDPH treatment
Interventions
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Dexmedetomidine Nebulization
ultrasonic nebulization of 1 µg/kg dexmedetomidine for PDPH treatment
0.9% Saline Nebulization
nebulization of 4mL 0.9% saline
Eligibility Criteria
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Inclusion Criteria
* Age 21- 40 years old.
* ASA I and ASA II.
* Accepted mental state of the patient.
Exclusion Criteria
* ASA Grade III and IV.
* Emergent caesarean section.
* Inadequate temporal window.
* Hypertensive disorders of the pregnancy.
* Atrial fibrillation.
* History of allergy to local anesthetics.
* History of chronic headache, migraine, convulsions, and cerebrovascular accident.
* Contraindication to spinal anesthesia: coagulopathy, infection at site of injection
21 Years
40 Years
FEMALE
No
Sponsors
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Zagazig University
OTHER_GOV
Responsible Party
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Sherif M. S. Mowafy
Lecturer of anesthesia and surgical intensive care
Principal Investigators
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Sherif M Mowafy, MD
Role: PRINCIPAL_INVESTIGATOR
Anesthesia and Surgical Intensive Care Department, Faculty of Medicine, Zagazig University
Shereen E Abd Ellatif, MD
Role: STUDY_DIRECTOR
Anesthesia and Surgical Intensive Care Department, Faculty of Medicine, Zagazig University
Locations
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Zagazig University Hospitals
Zagazig, Sharqia Province, Egypt
Countries
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References
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Sachs A, Smiley R. Post-dural puncture headache: the worst common complication in obstetric anesthesia. Semin Perinatol. 2014 Oct;38(6):386-94. doi: 10.1053/j.semperi.2014.07.007. Epub 2014 Aug 19.
Bardon J, LE Ray C, Samama CM, Bonnet MP. Risk factors of post-dural puncture headache receiving a blood patch in obstetric patients. Minerva Anestesiol. 2016 Jun;82(6):641-8. Epub 2015 Jul 29.
FitzGerald S, Salman M. Postdural puncture headache in obstetric patients. Br J Gen Pract. 2019 Apr;69(681):207-208. doi: 10.3399/bjgp19X702125. No abstract available.
Shah A, Bhatia PK, Tulsiani KL. Post dural puncture headache in caesarean section-a comparative study using 25G Quincke, 27G Quincke and 27G Whitacre needle. Indian J Anaesth 2002; 46(5):373-377.
Turnbull DK, Shepherd DB. Post-dural puncture headache: pathogenesis, prevention and treatment. Br J Anaesth. 2003 Nov;91(5):718-29. doi: 10.1093/bja/aeg231.
Amorim JA, Gomes de Barros MV, Valenca MM. Post-dural (post-lumbar) puncture headache: risk factors and clinical features. Cephalalgia. 2012 Sep;32(12):916-23. doi: 10.1177/0333102412453951. Epub 2012 Jul 27.
Uyar Turkyilmaz E, Eryilmaz NC, Guzey NA, Moraloglu O. [Bilateral greater occipital nerve block for treatment of post-dural puncture headache after caesarean operations]. Rev Bras Anestesiol. 2016 Sep-Oct;66(5):445-50. doi: 10.1016/j.bjan.2015.12.001. Epub 2016 Jul 18. Portuguese.
Tsaousi GG, Bilotta F. Is dexmedetomidine a favorable agent for cerebral hemodynamics? Indian J Crit Care Med. 2016 Jan;20(1):1-2. doi: 10.4103/0972-5229.173675. No abstract available.
Tang C, Huang X, Kang F, Chai X, Wang S, Yin G, Wang H, Li J. Intranasal Dexmedetomidine on Stress Hormones, Inflammatory Markers, and Postoperative Analgesia after Functional Endoscopic Sinus Surgery. Mediators Inflamm. 2015;2015:939431. doi: 10.1155/2015/939431. Epub 2015 Jun 25.
Jaakola ML, Salonen M, Lehtinen R, Scheinin H. The analgesic action of dexmedetomidine--a novel alpha 2-adrenoceptor agonist--in healthy volunteers. Pain. 1991 Sep;46(3):281-285. doi: 10.1016/0304-3959(91)90111-A.
Gertler R, Brown HC, Mitchell DH, Silvius EN. Dexmedetomidine: a novel sedative-analgesic agent. Proc (Bayl Univ Med Cent). 2001 Jan;14(1):13-21. doi: 10.1080/08998280.2001.11927725.
Gerlach AT, Dasta JF. Dexmedetomidine: an updated review. Ann Pharmacother. 2007 Feb;41(2):245-52. doi: 10.1345/aph.1H314. Epub 2007 Feb 13.
Drummond JC, Dao AV, Roth DM, Cheng CR, Atwater BI, Minokadeh A, Pasco LC, Patel PM. Effect of dexmedetomidine on cerebral blood flow velocity, cerebral metabolic rate, and carbon dioxide response in normal humans. Anesthesiology. 2008 Feb;108(2):225-32. doi: 10.1097/01.anes.0000299576.00302.4c.
Kumar A, Kumar A, Sinha C, Anant M, Singh JK. Dexmedetomidine nebulization: an answer to post-dural puncture headache? Int J Obstet Anesth. 2019 Nov;40:155-156. doi: 10.1016/j.ijoa.2019.06.004. Epub 2019 Jun 19. No abstract available.
Lybecker H, Djernes M, Schmidt JF. Postdural puncture headache (PDPH): onset, duration, severity, and associated symptoms. An analysis of 75 consecutive patients with PDPH. Acta Anaesthesiol Scand. 1995 Jul;39(5):605-12. doi: 10.1111/j.1399-6576.1995.tb04135.x.
Bathala L, Mehndiratta MM, Sharma VK. Transcranial doppler: Technique and common findings (Part 1). Ann Indian Acad Neurol. 2013 Apr;16(2):174-9. doi: 10.4103/0972-2327.112460.
Mowafy SMS, Ellatif SEA. Effectiveness of nebulized dexmedetomidine for treatment of post-dural puncture headache in parturients undergoing elective cesarean section under spinal anesthesia: a randomized controlled study. J Anesth. 2021 Aug;35(4):515-524. doi: 10.1007/s00540-021-02944-6. Epub 2021 May 16.
Other Identifiers
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6075-26-4-2020
Identifier Type: -
Identifier Source: org_study_id
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