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Diagnostic Yield of Vitreous Biopsy in Sarcoid Uveitis

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: February 7, 2008
Last Update Posted: April 11, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Duke University
The usefulness of diagnostic vitrectomy in patients with suspected sarcoidosis with posterior segment involvement (in whom a diagnosis cannot be determined by conventional methods) has not been well described. We hypothesized that diagnostic vitrectomy would help establish the diagnosis in these challenging cases. Herein, we evaluated the diagnostic yield of vitreous biopsy in patients with suspected sarcoidosis-associated uveitis that affected the posterior segment.This is a retrospective interventional case series. Cases of intermediate, posterior or panuveitis that could not be characterized by clinical examination, ancillary, and laboratory tests were considered for diagnostic pars plana vitrectomy. Retrospective chart review was conducted on consecutive eyes that underwent diagnostic, or diagnostic and therapeutic vitrectomy by a single surgeon from January 1989 to June 2006.

Condition Intervention
Sarcoidosis-associated Ocular Inflammation Procedure: Diagnostic Vitrectomy

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Diagnostic Yield of Vitreous Biopsy in Sarcoid Uveitis

Resource links provided by NLM:

Further study details as provided by Duke University:

Primary Outcome Measures:
  • To determine the diagnostic yield of vitreous biopsy in patients with suspected sarcoid uveitis [ Time Frame: January 1989 to June 2006 ]

Enrollment: 150
Study Start Date: January 2007
Study Completion Date: January 2008
Primary Completion Date: October 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Patients with suspected sarcoid-related posterior segment inflammation with inconclusive clinical exam findings, ancillary testing, and laboratory results
Procedure: Diagnostic Vitrectomy

Three-port, 20-gauge pars plana vitrectomy instrumentation was utilized. An infusion line was inserted into one sclerotomy and secured to the globe. A second sclerotomy was made, and a fiberoptic light pipe was immediately inserted to minimize vitreous egress. A third sclerotomy was created, and the vitreous cutter was inserted. To obtain an undiluted vitreous sample, the vitreous was cut mechanically with the vitreous cutter, while the assistant surgeon simultaneously manually aspirated the vitreous. After sufficient undiluted sample was obtained, infusion fluid was allowed to enter the eye and a diluted vitreous sample was obtained in a similar manner. The samples were personally carried to the clinical laboratories by the operating surgeon.

Vitreous fluid analysis was guided by clinical suspicion based on the pre-operative differential diagnosis and the intraoperative posterior segment appearance.

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Cases were included if intraocular vitreous specimens were obtained for diagnostic testing.

Exclusion Criteria:

  • Patients with acute postoperative or traumatic endophthalmitis from this study were excluded.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00609687

United States, North Carolina
Duke University Eye Center
Durham, North Carolina, United States, 27710
Sponsors and Collaborators
Duke University
Principal Investigator: Glenn J Jaffe, MD Duke University Eye Center
  More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Duke University
ClinicalTrials.gov Identifier: NCT00609687     History of Changes
Other Study ID Numbers: Pro00014310
First Submitted: January 25, 2008
First Posted: February 7, 2008
Last Update Posted: April 11, 2013
Last Verified: January 2008

Keywords provided by Duke University:
diagnostic vitrectomy
vitreous biopsy
sarcoidosis-associated ocular inflammation

Additional relevant MeSH terms:
Pathologic Processes
Uveal Diseases
Eye Diseases
Lymphoproliferative Disorders
Lymphatic Diseases