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Trial registered on ANZCTR
Registration number
ACTRN12617001042336
Ethics application status
Approved
Date submitted
29/05/2017
Date registered
17/07/2017
Date last updated
17/07/2017
Type of registration
Retrospectively registered
Titles & IDs
Public title
The effect of anesthesia type on intraocular pressure for lumbar surgery operations.
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Scientific title
The effect of spinal and general anesthesia on intraocular pressure for lumbar discectomy surgery
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Secondary ID [1]
292068
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Nil Known
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
patients who have herniated lomber disc
303475
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Condition category
Condition code
Anaesthesiology
302886
302886
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0
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Anaesthetics
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Musculoskeletal
303080
303080
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0
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Other muscular and skeletal disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Patients divided two groups. Anesthesia types are differnt for groups.
1. Group: Spinal anesthesia with 15 mg bupivacaine ( given to cerebrospinal fluid) before procedure.
2. Group General anesthesia with 2 mcg/kg fentanyl intravenous.,, 2 mg/kg propofol intravenous.and 0.6 mg / kg rocuronium intravenous induction doses, and anesthesia maintenance with 2 % sevoflurane inhalation until completion of procedure.
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Intervention code [1]
298204
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Treatment: Drugs
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Comparator / control treatment
Comparing spinal and general anesthesia
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Control group
Active
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Outcomes
Primary outcome [1]
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intraocular pressure measurements with portable tonometer (for intraocular pressure measurement)
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Assessment method [1]
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Timepoint [1]
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preoperative time ( basal ) , 10 minutes after anesthesia application, 10 minutes after prone positioning, at the end of the operation are four timepoints for intraocular pressure measurements.
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Secondary outcome [1]
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visual disturbance after operation
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Assessment method [1]
335342
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Timepoint [1]
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1. day after surgery with asking patients verbally
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Eligibility
Key inclusion criteria
1) Patients > 18 years old
2) Patients who undergo lumbar discectomy surgery
3) ASA I-III physical status patients
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
1) Patients who have any eye illness
2) Any operation from eyes
3) Beta blocker drug usage
4) Known local anesthetic allergy
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
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Who is / are masked / blinded?
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Intervention assignment
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Other design features
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Phase
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Date of first participant enrolment
Anticipated
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Actual
1/03/2017
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Date of last participant enrolment
Anticipated
30/08/2017
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Actual
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Date of last data collection
Anticipated
31/08/2017
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Actual
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Sample size
Target
40
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Accrual to date
10
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Final
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Recruitment outside Australia
Country [1]
8929
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Turkey
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State/province [1]
8929
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KONYA
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Funding & Sponsors
Funding source category [1]
296600
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University
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Name [1]
296600
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Baskent University
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Address [1]
296600
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Taskent Caddesi (Eski 1. Cadde) 77. Sokak (Eski 16. Sokak) No:11 06490 Bahcelievler / ANKARA
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Country [1]
296600
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Turkey
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Primary sponsor type
University
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Name
Baskent University
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Address
Taskent Caddesi (Eski 1. Cadde) 77. Sokak (Eski 16. Sokak) No:11 06490 Bahcelievler / ANKARA
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Country
Turkey
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Secondary sponsor category [1]
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None
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Name [1]
295556
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Address [1]
295556
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Country [1]
295556
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
297827
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Baskent University Clinical Research Ethical Committee
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Ethics committee address [1]
297827
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Taskent Caddesi 77. Sokak No:11 06490 Bahcelievler Cankaya Ankara
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Ethics committee country [1]
297827
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Turkey
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Date submitted for ethics approval [1]
297827
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11/04/2013
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Approval date [1]
297827
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12/11/2013
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Ethics approval number [1]
297827
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KA 13/103
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Summary
Brief summary
Prone position can increase intraocuar pressure especially for lumbar surgery. Many studies evaluated intraocular pressure in patients under general anesthesia. But there is not a study examinig patient under spinal anesthesia. In this study our aim is to investigate effects of spinal and general anesthesia on lumbar discectomy patients in prone position. 40 ASA I-III patients over 18 years old who undergo lumbar disc surgery patients will paritcipate study. Eye illness, eye surgery history, beta blocker drug usage, local anesthetic allergy are exclusion criterias. we record heigt, weight, hypertension or diabetes mellitus existence. We randomize patients in two groups. 1) Spinal anesthesia group 2) General anesthesia group We both measure intraocular pressure of both eyes each group when patients are supin position with portable tonometer. After that, we will perform spinal anesthesia with 15 mg hiperbaric bupivacaine from L3-4 lumbar interspace for spinal group and general anesthesia induction with fentanyl 2mcg/kg i.v., propofol 2 mg /kg i.v. and rocuronium 0.6 mg/kg for general anesthesia group patients and maintain anesthesia with 2% sevoflurane i.v.. We measure intraocular pressure after anesthesia at 10th minute, 10 minutes after prone positioning and at the end of the operation at prone position. We will record mean arterial pressure, at intraocular pressure measurements time, We will ask patients at first postoperative day if they have any visual disturbances. We compare the results of intraocular pressures and evaluate with appropriate statistical methods.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Mr Huseyin Ulas Pinar
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Address
75206
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Hocacihan mah. saray cad No:1 Selcuklu/ Konya postal Code: 42080
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Country
75206
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Turkey
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Phone
75206
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+903322570606
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Fax
75206
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Email
75206
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[email protected]
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Contact person for public queries
Name
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Huseyin Ulas Pinar
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Address
75207
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Hocacihan mah. saray cad No:1 Selcuklu/ Konya Postal Code: 42080
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Country
75207
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Turkey
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Phone
75207
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+903322570606
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Fax
75207
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Email
75207
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[email protected]
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Contact person for scientific queries
Name
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Huseyin Ulas Pinar
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Address
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Hocacihan mah. saray cad No:1 Selcuklu/ Konya
Postal Code : 42080
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Country
75208
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Turkey
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Phone
75208
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+903322570606
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Fax
75208
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Email
75208
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
Source
Title
Year of Publication
DOI
Embase
The effect of spinal versus general anesthesia on intraocular pressure in lumbar disc surgery in the prone position: A randomized, controlled clinical trial.
2018
https://dx.doi.org/10.1016/j.jclinane.2018.01.026
N.B. These documents automatically identified may not have been verified by the study sponsor.
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