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The Influence of Silicone Oil on Nerve Fiber Layer Thickness After Pars Plana Vitrectomy

This study has been completed.
Information provided by (Responsible Party):
Mia Zoric Geber, University Hospital "Sestre milosrdnice" Identifier:
First received: December 6, 2010
Last updated: March 22, 2012
Last verified: March 2012
Results First Received: December 18, 2011  
Study Type: Observational
Study Design: Observational Model: Case Control;   Time Perspective: Prospective
Conditions: Rhegmatogenous Retinal Detachment
Toxic Effect of Silicone
Glaucoma Due to Silicon Oil
Interventions: Other: Optical coherence tomography
Drug: Local medical treatment of raised intraocular pressure

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations

Patients with a diagnosis of retinal detachment who fulfilled enrolment criteria were included in the study. All patient were enrolled through University Department of Ophthalmology, University Hospital "Sestre milosrdnice".

The recruitment started in April 2010 and the last patient was enrolled in June 2011.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
We excluded one patient who developed severe inflammatory reaction 5 days following pars plana vitrectomy and silicone oile tamponade from the study.

Reporting Groups
NO IOP Patients without raised IOP
RAISED IOP Patients with raised IOP

Participant Flow:   Overall Study
STARTED     26     33  
COMPLETED     25     32  
NOT COMPLETED     1     1  
Physician Decision                 1                 1  

  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
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Reporting Groups
NO IOP Patients without raised IOP
RAISED IOP Patients with raised IOP
Total Total of all reporting groups

Baseline Measures
    NO IOP     RAISED IOP     Total  
Number of Participants  
[units: participants]
  26     33     59  
[units: participants]
<=18 years     0     0     0  
Between 18 and 65 years     11     25     36  
>=65 years     15     8     23  
[units: years]
Mean ± Standard Deviation
  63.80  ± 12.97     58.21  ± 12.26     60.67  ± 12.77  
[units: participants]
Female     16     11     27  
Male     10     22     32  
Region of Enrollment  
[units: participants]
Croatia     26     33     59  

  Outcome Measures
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1.  Primary:   Evidence of Retinal Nerve Fibre Layer Thickness Change Measured by Optical Coherence Tomography   [ Time Frame: 6 months ]

2.  Secondary:   Retinal Nerve Fiber Layer Thickness Change in Patients With Raised Intraocular Pressure Secondary to Silicone Oil Endotamponade   [ Time Frame: 6 months ]

  Serious Adverse Events

  Other Adverse Events

  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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  More Information
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Certain Agreements:  
All Principal Investigators ARE employed by the organization sponsoring the study.

Results Point of Contact:  
Name/Title: Mia Zoric Geber, MD
Organization: University Hospital "Sestre milosrdnice"
phone: +385 1 3787 354


Responsible Party: Mia Zoric Geber, University Hospital "Sestre milosrdnice" Identifier: NCT01255306     History of Changes
Other Study ID Numbers: KBSM-30-1/10
Study First Received: December 6, 2010
Results First Received: December 18, 2011
Last Updated: March 22, 2012
Health Authority: Croatia: Ethics Committee