Efficacy of Higher Cutting Rate in Microincision Vitrectomy for Proliferative Diabetic Retinopathy

Overview

The medical records of 393 eyes of 326 patients with severe proliferative diabetic retinopathy were reviewed. Higher cutting rate instruments (5000 cut per minute) were used in 174 eyes and conventional instruments in 219 eyes (2500 cut per minute). The visual outcome and incidences of intraoperative and postoperative complications were compared.

Study Type

  • Study Type: Observational
  • Study Design
    • Time Perspective: Retrospective
  • Study Primary Completion Date: March 2014

Interventions

  • Procedure: Vitrectomy for proliferative diabetic retinopathy
    • 25-gauge vitrectomy

Arms, Groups and Cohorts

  • Higher cutting rate group
    • Vitrectomy with higher cutting rate instruments (5000 cut per minute) were performed in 174 eyes for proliferative diabetic retinopathy
  • Conventional cutting rate group
    • Vitrectomy with conventional instruments (2500 cut per minute) were performed in 219 eyes for proliferative diabetic retinopathy

Clinical Trial Outcome Measures

Primary Measures

  • Visual acuity
    • Time Frame: 6 months

Secondary Measures

  • Retinal reattachment
    • Time Frame: 6 months

Participating in This Clinical Trial

Inclusion Criteria

  • The inclusion criteria were patients who had persistent vitreous hemorrhage, fibrovascular proliferation affecting the macula, or tractional RD and who had a follow-up for more than 6 months. Exclusion Criteria:

  • The eyes with follow-up less than 6 months

Gender Eligibility: All

Minimum Age: 20 Years

Maximum Age: 90 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Kyorin University
  • Provider of Information About this Clinical Study
    • Principal Investigator: Makoto Inoue, Kyorin Eye center – Kyorin University

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