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Original Research 


A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration

Ritu Tiwari, Namrata Dubey, Prabhat Kumar Budholia.


Abstract
Background: Type 2 diabetes mellitus (T2DM) is endocrine disorder showing increasing prevalence worldwide. Chronic hyperglycemia of diabetes affects various organs of our body and causes dysfunction and failure of them. Diabetic retinopathy is a grave complication of diabetes mellitus. Diabetes causes neurodegeneration in retina well before the frank retinopathy. Early detection of these changes by visual evoked potentials (VEPs) may prevent the development of this complication in future, so it can be used as a screening test.

Aims and Objectives: The study aimed to compare the VEP changes with the duration of T2DM.

Materials and Methods: An analytical case–control study was done after obtaining Ethical Committee permission. VEPs were recorded with RMS EMG EP MK II machine. The duration of the diabetes was used to divide patients into two groups: Group I - 30 patients with disease duration <15 years; and Group II - 30 patients with T2DM with disease duration >15 years. Analysis and processing of the data was done by using statistical software SPSS23.0 using t-test. The significance level was taken as P < 0.05.

Results: The comparative analysis between groups showed significant prolongation in latencies of P100 wave and N 145 wave in group II and reduced N75 - P100 amplitude in group II, though it was not statistically significant.

Conclusion: It is concluded that the visual pathway is affected by diabetes and VEP changes are correlated with its duration. Therefore, VEPs can be used as a prognostic marker.

Key words: Type 2 Diabetes Mellitus; Diabetic Retinopathy; Pattern Reversal Visual Evoked Potentials


 
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How to Cite this Article
Pubmed Style

Tiwari R, Dubey N, Budholia PK. A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration. Natl J Physiol Pharm Pharmacol. 2024; 14(6): 1124-1129. doi:10.5455/njppp.2023.13.11520202323112023

Web Style

Tiwari R, Dubey N, Budholia PK. A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration. https://www.njppp.com/?mno=175600 [Access: April 17, 2025]. doi:10.5455/njppp.2023.13.11520202323112023

AMA (American Medical Association) Style

Tiwari R, Dubey N, Budholia PK. A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration. Natl J Physiol Pharm Pharmacol. 2024; 14(6): 1124-1129. doi:10.5455/njppp.2023.13.11520202323112023


Vancouver/ICMJE Style

Tiwari R, Dubey N, Budholia PK. A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration. Natl J Physiol Pharm Pharmacol. (2024), [cited April 17, 2025]; 14(6): 1124-1129. doi:10.5455/njppp.2023.13.11520202323112023


Harvard Style

Tiwari, R., Dubey, . N. & Budholia, . P. K. (2024) A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration. Natl J Physiol Pharm Pharmacol, 14 (6), 1124-1129. doi:10.5455/njppp.2023.13.11520202323112023


Turabian Style

Tiwari, Ritu, Namrata Dubey, and Prabhat Kumar Budholia. 2024. A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration. National Journal of Physiology, Pharmacy and Pharmacology, 14 (6), 1124-1129. doi:10.5455/njppp.2023.13.11520202323112023


Chicago Style

Tiwari, Ritu, Namrata Dubey, and Prabhat Kumar Budholia. "A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration." National Journal of Physiology, Pharmacy and Pharmacology 14 (2024), 1124-1129. doi:10.5455/njppp.2023.13.11520202323112023


MLA (The Modern Language Association) Style

Tiwari, Ritu, Namrata Dubey, and Prabhat Kumar Budholia. "A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration." National Journal of Physiology, Pharmacy and Pharmacology 14.6 (2024), 1124-1129. Print. doi:10.5455/njppp.2023.13.11520202323112023


APA (American Psychological Association) Style

Tiwari, R., Dubey, . N. & Budholia, . P. K. (2024) A comparative study of visual evoked potential parameters in type 2 diabetes mellitus patients with increasing duration. National Journal of Physiology, Pharmacy and Pharmacology, 14 (6), 1124-1129. doi:10.5455/njppp.2023.13.11520202323112023


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