The Effects of Virtual Colonoscopy on Intraocular Pressure
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|ClinicalTrials.gov Identifier: NCT03090243|
Recruitment Status : Unknown
Verified March 2017 by Shlomo gavrielli, Rabin Medical Center.
Recruitment status was: Not yet recruiting
First Posted : March 24, 2017
Last Update Posted : March 28, 2017
|Condition or disease||Intervention/treatment|
|Intraocular Pressure Disorder||Device: Virtual colonoscopy|
Glaucoma is a complicated disease in which damage to the optic nerve leads to progressive, irreversible vision loss. Glaucoma is the second leading cause of blindness and associated with elevated intraocular pressure (IOP) as a major risk factor.
IOP is influenced by many factors, including ethnicity, heredity, various chemical substances (existing body and external body like drugs), physical changes (postures, neural and vascular autoregulation) and more.
Virtual colonoscopy is a common screening test for the early detection and diagnosis of colon cancer. The test is performed by computed tomography (CT) after inflating the colon with carbon dioxide (CO2) gas. The procedure is performed by inserting a Foley catheter through the anus. As a result of gas inflating of the bowel, consequently, there is an increase in the abdominal pressure.
Raising intra-abdominal pressure may cause a rise in intraocular pressure. The aim of this research is to examine the changes in IOP before and after the virtual colonoscopy, with the aim to improve the understanding of the relationship between intra-abdominal pressure and IOP.
The study will include 100 patients, men and women, that are scheduled for virtual colonoscopy test both in a hospital and in ambulatory.
|Study Type :||Observational|
|Estimated Enrollment :||100 participants|
|Official Title:||The Effects of Virtual Colonoscopy on Intraocular Pressure|
|Estimated Study Start Date :||April 1, 2017|
|Estimated Primary Completion Date :||March 28, 2018|
|Estimated Study Completion Date :||March 28, 2018|
measurements of IOP before and after virtual colonoscopy
Device: Virtual colonoscopy
Inserting a Foley catheter through the anus, and gas inflating of the bowel.
- Intra ocular measurements differences [ Time Frame: 3 years ]Raising intra-abdominal pressure may cause a rise in intraocular pressure. The aim of this research is to examine the changes in IOP before and after the virtual colonoscopy, with the aim to improve the understanding of the relationship between intra-abdominal pressure and IOP.