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Study of Effectiveness of Telemedicine in Identifying Diabetic Retinopathy Cases

2015-04-29 15:53:22 | BioPortfolio

Summary

The aim of this study is to compare the effectiveness of identifying diabetic retinopathy using tele-medicine based Digital Retinal Imaging in Diabetes Clinics with that of the conventional referral system.

Hypothesis: Tele-medicine based digital retinal imaging involving a diabetes centre will identify proportionately more diabetic patients with DR and lead to higher acceptance rate with subsequent ophthalmic referral and management

Description

The design is a cluster randomized trial of tele-medicine versus usual care in diabetic patients. The primary outcome of the study is the proportion of patients with confirmed DR at Aravind Eye Hospital (AEH). DR will be graded using the International Clinical Diabetic Retinopathy Disease Severity Scale. A sample size of 616 patients in both arms is required to detect a risk ratio of 1.8 or above at 90% power, 1% alpha and a design effect of 2. Eight clinics will be recruited and equally randomized to tele-medicine or usual care stratified by distance from AEH. Inclusion criteria include a confirmed diagnosis of diabetes, age over 50, no retinal exam in the previous year. In the tele-medicine arm patients will be offered fundus imaging and patients diagnosed with DR or probable DR will be counselled to visit AEH to confirm DR. In the usual care arm, the eligible patients will be counselled and referred to undergo an eye examination at AEH. In both the arms the counselling and the awareness creation materials will be standardized. Fundus imaging will be offered at the end of the study to those who refuse initially and all those in the usual arm who did not attend AEH.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Health Services Research

Conditions

Diabetic Retinopathy

Intervention

Tele-medicine, Conventional referral

Location

Aravind Eye Hospital
Madurai
Tamil Nadu
India
625020

Status

Completed

Source

Aravind Eye Care System

Results (where available)

View Results

Links

Published on BioPortfolio: 2015-04-29T15:53:22-0400

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