The Effect of Two Different Artificial Respiration Methods on the Intraocular Pressure During Surgery Under General Anesthesia

The recruitment status of this study is unknown because the information has not been verified recently.
Verified March 2012 by Western Galilee Hospital-Nahariya.
Recruitment status was  Not yet recruiting
Sponsor:
Information provided by (Responsible Party):
Western Galilee Hospital-Nahariya
ClinicalTrials.gov Identifier:
NCT01567761
First received: March 29, 2012
Last updated: NA
Last verified: March 2012
History: No changes posted

March 29, 2012
March 29, 2012
May 2012
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No Changes Posted
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The Effect of Two Different Artificial Respiration Methods on the Intraocular Pressure During Surgery Under General Anesthesia
A Prospective, Randomized and Double Blind Study on The Effect of Two Different Artificial Respiration Methods on the Intraocular Pressure During Surgery Under General Anesthesia

The purpose of this study is to examine whether the intraocular pressure of operated people under general anesthesia is affected by the artificial respiration method. If it is proven that there is such influence, the findings may lead to select the best method for patients with increased intraocular pressure.

In this study, the investigators will monitor the changes observed in intraocular pressure caused during an operation in two different artificial respiration methods:

  1. Intermittent positive pressure ventilation (IPPV)
  2. High frequency jet ventilation (HFJV)

Study recruited 50 patients aged 18 - 40, candidates to elective orthopedic surgery in the limbs. These patients do not suffer from general diseases that restrict their daily functioning.

The selection of the type of surgery was done to prevent the involvement of any other factor, except the respiration method, determination of intraocular pressure.

Exclusion Criteria:

  • Patients who are unable to provide an Informed Consent
  • Patients suffering from any eye disease
  • Patients with corneal thickness less than 450 microns or more than 600 microns
  • Smokers
  • Patients with pulmonary disease restrictive or obstructive
  • Patients using bronchodilator

All patients operated under general anesthesia using total intravenous anesthesia )TIVA) method.

All patients will be resuscitating half of the time of surgery using IPPV, and in the second half of surgery using HFJV.

During the surgery the IOP will be measured by an ophthalmologist who is unaware of the respiration method.

Correction will be made to the intraocular pressure values, depending on the thickness of the cornea.

The results of the measurements will be collected and the clinical significance will be reviewed by acceptable statistical methods.

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Observational
Time Perspective: Prospective
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Probability Sample

Patients aged 18 - 40, candidates to elective orthopedic surgery in the limbs. These patients do not suffer from general diseases that restrict their daily functioning.

Intra Ocular Hypertension
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Not yet recruiting
50
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Inclusion Criteria:

  • Patients aged 18 - 40
  • Patients candidates to elective orthopedic surgery in the limbs
  • Patients do not suffer from general diseases that restrict their daily functioning.

Exclusion Criteria:

  • Patients who are unable to provide an Informed Consent
  • Patients suffering from any eye disease
  • Patients with corneal thickness less than 450 microns or more than 600 microns
  • Smokers
  • Patients with pulmonary disease restrictive or obstructive
  • Patients using bronchodilator
Both
18 Years to 40 Years
Yes
Contact: Zvi Segal, M.D. 972-50-7887602 zvi.segal@naharia.health.gov.il
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NCT01567761
3111
No
Western Galilee Hospital-Nahariya
Western Galilee Hospital-Nahariya
Not Provided
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Western Galilee Hospital-Nahariya
March 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP