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The Effect of Intravenous Magnesium Sulfate on Intraocular Pressure Following Tracheal Intubation

This study has been completed.
Information provided by:
Shiraz University of Medical Sciences Identifier:
First received: November 15, 2010
Last updated: NA
Last verified: March 2009
History: No changes posted
The aim of this study is to assess the effect of preoperatively administered intra venous magnesium sulfate in attenuating pressure response to laryngoscopy and endotracheal intubation in adult patients scheduled for elective non ocular surgery

Condition Intervention Phase
Increased Intra Ocular Pressure (IOP) Drug: Magnesium Sulfate Drug: normal saline Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Masking: Double (Care Provider, Outcomes Assessor)
Primary Purpose: Prevention

Resource links provided by NLM:

Further study details as provided by Shiraz University of Medical Sciences:

Primary Outcome Measures:
  • Intra ocular pressure

Secondary Outcome Measures:
  • blood pressure,heart rate

Arms Assigned Interventions
Experimental: magnesium sulfate Drug: Magnesium Sulfate
Placebo Comparator: normal saline Drug: normal saline


Ages Eligible for Study:   18 Years to 38 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 18 to 38 years old
  • ASA I
  • scheduled for elective ENT ambulatory surgeries under general anesthesia

Exclusion Criteria:

  • specific major hepatic, renal and cardio-vascular disease
  • known to have allergic reaction to magnesium sulphate or other drugs , -hypermagnesemia
  • hypocalcemia
  • anuria
  • heart block
  • pregnancy
  • any degree of renal insufficiency
  • digitalised patients
  • positive history of glaucoma or intra ocular hypertension
  • refused to participate
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Please refer to this study by its identifier: NCT01241175

Iran, Islamic Republic of
Shiraz University of Medical Sciences
Shiraz, Fars, Iran, Islamic Republic of
Sponsors and Collaborators
Shiraz University of Medical Sciences
Study Director: Hilda Mahmoudi, M.D Shiraz University of Medical Sciences
  More Information Identifier: NCT01241175     History of Changes
Other Study ID Numbers: 4286
Study First Received: November 15, 2010
Last Updated: November 15, 2010

Keywords provided by Shiraz University of Medical Sciences:
ophthalmic anesthesia
magnesium sulfate

Additional relevant MeSH terms:
Magnesium Sulfate
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Central Nervous System Depressants
Anti-Arrhythmia Agents
Calcium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Tocolytic Agents
Reproductive Control Agents processed this record on September 21, 2017