The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic Retinopathy

Purpose. Nerve conduction velocity (NCV) is an indicator of neuronal damage in the distal segment of the peripheral nerves. Here, we determined the association between NCV and other systemic and ocular clinical findings, in type 2 diabetes patients with early diabetic retinopathy (DR). Methods. This...

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Main Authors: Azusa Ito, Hiroshi Kunikata, Masayuki Yasuda, Shojiro Sawada, Keiichi Kondo, Chihiro Satake, Kazuki Hashimoto, Naoko Aizawa, Hideki Katagiri, Toru Nakazawa
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Journal of Ophthalmology
Online Access:http://dx.doi.org/10.1155/2018/2439691
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author Azusa Ito
Hiroshi Kunikata
Masayuki Yasuda
Shojiro Sawada
Keiichi Kondo
Chihiro Satake
Kazuki Hashimoto
Naoko Aizawa
Hideki Katagiri
Toru Nakazawa
author_facet Azusa Ito
Hiroshi Kunikata
Masayuki Yasuda
Shojiro Sawada
Keiichi Kondo
Chihiro Satake
Kazuki Hashimoto
Naoko Aizawa
Hideki Katagiri
Toru Nakazawa
author_sort Azusa Ito
collection DOAJ
description Purpose. Nerve conduction velocity (NCV) is an indicator of neuronal damage in the distal segment of the peripheral nerves. Here, we determined the association between NCV and other systemic and ocular clinical findings, in type 2 diabetes patients with early diabetic retinopathy (DR). Methods. This study included 42 eyes of 42 type 2 diabetes patients (median age: 54 years) with no DR or with mild nonproliferative DR. Standard statistical techniques were used to determine associations between clinical findings. Results. Sural sensory conduction velocity (SCV) and tibial motor conduction velocity (MCV) were significantly lower in mild nonproliferative DR patients than patients with no DR (P=0.008 and P=0.01, resp.). Furthermore, logistic regression analyses revealed that sural SCV and tibial MCV were independent factors contributing to the presence of mild nonproliferative DR (OR 0.83, P=0.012 and OR 0.69 P=0.02, resp.). Tibial MCV was correlated with choroidal thickness (CT) (P=0.01), and a multiple regression analysis revealed that age, tibial MCV, and carotid intima-media thickness were independent associating factors with CT (P=0.035, P=0.015, and P=0.008, resp.). Conclusions. Our findings suggest that reduced NCV may be closely associated with early DR in type 2 diabetes patients. Thus, reduced nerve conduction is a potential early biomarker of DR.
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spelling doaj-art-1bc059338c50448e8ca27f8ce78e1c942025-02-03T01:29:54ZengWileyJournal of Ophthalmology2090-004X2090-00582018-01-01201810.1155/2018/24396912439691The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic RetinopathyAzusa Ito0Hiroshi Kunikata1Masayuki Yasuda2Shojiro Sawada3Keiichi Kondo4Chihiro Satake5Kazuki Hashimoto6Naoko Aizawa7Hideki Katagiri8Toru Nakazawa9Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Metabolism and Diabetes, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Metabolism and Diabetes, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Metabolism and Diabetes, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Metabolism and Diabetes, Tohoku University Graduate School of Medicine, Sendai, JapanDepartment of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, JapanPurpose. Nerve conduction velocity (NCV) is an indicator of neuronal damage in the distal segment of the peripheral nerves. Here, we determined the association between NCV and other systemic and ocular clinical findings, in type 2 diabetes patients with early diabetic retinopathy (DR). Methods. This study included 42 eyes of 42 type 2 diabetes patients (median age: 54 years) with no DR or with mild nonproliferative DR. Standard statistical techniques were used to determine associations between clinical findings. Results. Sural sensory conduction velocity (SCV) and tibial motor conduction velocity (MCV) were significantly lower in mild nonproliferative DR patients than patients with no DR (P=0.008 and P=0.01, resp.). Furthermore, logistic regression analyses revealed that sural SCV and tibial MCV were independent factors contributing to the presence of mild nonproliferative DR (OR 0.83, P=0.012 and OR 0.69 P=0.02, resp.). Tibial MCV was correlated with choroidal thickness (CT) (P=0.01), and a multiple regression analysis revealed that age, tibial MCV, and carotid intima-media thickness were independent associating factors with CT (P=0.035, P=0.015, and P=0.008, resp.). Conclusions. Our findings suggest that reduced NCV may be closely associated with early DR in type 2 diabetes patients. Thus, reduced nerve conduction is a potential early biomarker of DR.http://dx.doi.org/10.1155/2018/2439691
spellingShingle Azusa Ito
Hiroshi Kunikata
Masayuki Yasuda
Shojiro Sawada
Keiichi Kondo
Chihiro Satake
Kazuki Hashimoto
Naoko Aizawa
Hideki Katagiri
Toru Nakazawa
The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic Retinopathy
Journal of Ophthalmology
title The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic Retinopathy
title_full The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic Retinopathy
title_fullStr The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic Retinopathy
title_full_unstemmed The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic Retinopathy
title_short The Relationship between Peripheral Nerve Conduction Velocity and Ophthalmological Findings in Type 2 Diabetes Patients with Early Diabetic Retinopathy
title_sort relationship between peripheral nerve conduction velocity and ophthalmological findings in type 2 diabetes patients with early diabetic retinopathy
url http://dx.doi.org/10.1155/2018/2439691
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