Comparison of Small-gauge Vitrectomy and Conventional Vitrectomy for Proliferative Diabetic Retinopathy

This study has been completed.
Information provided by (Responsible Party):
Makoto Inoue, Kyorin University Identifier:
First received: December 27, 2012
Last updated: December 31, 2012
Last verified: December 2012

Surgical outcome of vitreous surgery for proliferative diabetic retinopathy (PDR) with conventional 20, 23, and 25-gauge vitrectomy were compared.

Condition Intervention
Proliferative Diabetic Retinopathy
Procedure: Vitrectomy

Study Type: Interventional
Study Design: Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Comparison of Small-gauge and Conventional Vitrectomy for Proliferative Diabetic Retinopathy

Resource links provided by NLM:

Further study details as provided by Kyorin University:

Primary Outcome Measures:
  • Incidence of retinal breaks [ Time Frame: One year ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Incidence of neovascular glaucoma [ Time Frame: One Year ] [ Designated as safety issue: No ]

Enrollment: 347
Study Start Date: September 2007
Study Completion Date: July 2011
Primary Completion Date: January 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Proliferative diabetic retinopathy Procedure: Vitrectomy

Detailed Description:

The 424 eyes of 347 patients of PDR who underwent vitreous surgery for persistent vitreous hemorrhage or progressive proliferative membrane were evaluated.


Ages Eligible for Study:   10 Years to 90 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • The patients of proliferative diabetic retinopathy who underwent vitreous surgery and followed at least 6 months

Exclusion Criteria:

  • The patients of proliferative diabetic retinopathy who underwent vitreous surgery but did not follow more than 6 months.
  Contacts and Locations
Please refer to this study by its identifier: NCT01758757

Kyorin Eye Center
Mitaka, Tokyo, Japan, 181-8611
Sponsors and Collaborators
Kyorin University
Study Chair: Makoto Inoue, MD Kyorin Eye Center
  More Information

No publications provided

Responsible Party: Makoto Inoue, Kyorin Eye Center, Kyorin University Identifier: NCT01758757     History of Changes
Other Study ID Numbers: Kyorineye010, Vitrectomy for PDR
Study First Received: December 27, 2012
Last Updated: December 31, 2012
Health Authority: Japan: Institutional Review Board

Keywords provided by Kyorin University:
Proliferative diabetic retinopathy

Additional relevant MeSH terms:
Diabetic Retinopathy
Retinal Diseases
Eye Diseases
Diabetic Angiopathies
Vascular Diseases
Cardiovascular Diseases
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases processed this record on April 17, 2014