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Effects of Addition of Magnesium Sulfate in Spinal Anesthesia on Sensory-Motor Blocks and Postoperative Pain in Lumbar Disk Herniation Surgery

Comparison of the Effects of Three Methods of Intrathecal Bupivacaine; Bupivacaine-Fentanyl and Bupivacaine-Fentanyl-Magnesium Sulfate on Sensory-Motor Blocks and Postoperative Pain in Patients Undergoing Lumbar Disk Herniation Surgery

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01843296
Enrollment
105
Registered
2013-04-30
Start date
2012-11-30
Completion date
2013-04-30
Last updated
2013-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lumbar Spine Disc Herniation

Keywords

Spinal Anesthesia, Bupivacaine, Fentanyl, Magnesium sulfate, Postoperative Pain

Brief summary

The purpose of this study is to Compare three methods of intrathecal bupivacaine; bupivacaine-fentanyl; bupivacaine-fentanyl-magnesium sulfate on sensory-motor blocks and postoperative pain in patients undergoing lumbar disk herniation surgery.

Detailed description

* Comparison three methods of intrathecal bupivacaine;bupivacaine-fentanyl;bupivacaine-fentanyl-magnesium sulfate on sensory-motor blocks in patients undergoing lumbar disk herniation surgery * Comparison three methods of intrathecal bupivacaine;bupivacaine-fentanyl;bupivacaine-fentanyl-magnesium sulfate on postoperative pain in patients undergoing lumbar disk herniation surgery * Comparison three methods of intrathecal bupivacaine;bupivacaine-fentanyl;bupivacaine-fentanyl-magnesium sulfate on postoperative side effects in patients undergoing lumbar disk herniation surgery

Interventions

DRUGMagnesium Sulfate

Injection of 50 mg of magnesium sulfate 50% (0.1 ml),intrathecally.

PROCEDURESpinal Anesthesia

Lumbar puncture was performed in sitting position,at the one level above iliac crest. Using a median approach, a 25-G Quincke needle was introduced with the needle aperture directed laterally.

DRUGBupivacaine
DRUGFentanyl

Sponsors

Isfahan University of Medical Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Candidate for lumbar disk herniation surgery * No contraindication to the spinal anesthesia * No history of allergy to opioids and magnesium sulfate * No peripheral or central neuropathies * No previous history of surgery on same disk level

Exclusion criteria

* Patients with intraoperative tearing of dural suc * Occuring of inadvertent intraoperative complications such as bleeding

Design outcomes

Primary

MeasureTime frameDescription
Time to first analgesic requirementDuring first 24 hours after spinal anesthesiaTime to first analgesic requirement was measured from the time of spinal injection to the first time at which the patient complained of pain in the postoperative period
The full motor recoveryFrom intrathecal injection until the full motor recovery assessed up to 6 hoursFull motor recovery was defined as zero on the Bromage scale.
The Pain ScoreThe first 24 hours after spinal anesthesiaUsing VAS (Visual Analogue Score) system
The onset of sensory blockFrom intrathecal injection until the onset of sensory block assessed up to 15 minutesComparing the onset of sensory blocks to T10 (10th thoracic dermatome) assessed by pinprick test.
The complete motor blockFrom intrathecal injection until the onset of complete motor block assessed up to 15 minutesTime to complete motor block after intrathecal injection as assess using a modified Bromage scale
The sensory block regressionFrom intrathecal injection until the sensory block reression to (T10) assessed up to 6 hoursThe sensory block regression to (T10) dermatome

Secondary

MeasureTime frameDescription
Heart RateFirst hour after spinal anesthesiaTo compare heart rate variation and bradycardia between three groups
Mean Arterial Blood PressureFirst hour after spinal anesthesiaTo compare blood pressure alteration and hypotension between three groups

Countries

Iran

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026