Clinical patterns of third nerve palsies in diabetic patients

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Ghada Saad
Asma Ben Abdelkrim
Amel Maaroufi Beizig
Maha Kacem Njah
Molka Chadli Chaieb
Koussay Ach

Abstract

Background:Neuropathy is a frequent complication in diabetic patients with variable clinical presentations and evolutions.
Aim:The purpose of the study was to specify the clinical features of diabetic third nerve palsy, to assess the risk factors and to observe its evolution.
Methods:We report a series of 11 diabetic patients with oculomotor paralysis collected in the department of endocrinology and diabetology of FarhatHached Hospital of Sousse between 1996 and 2005.
Results: Our study was about 6 men and 5 women with an average age of 63.6 ± 13.7 years. All patients had type 2 diabetes.  Eight patients presented with diplopia, three with periocular pain and 6 with headache. The oculomotor palsy was unilateral in all cases. All patients were in glycemic imbalance at the time of the diagnosis of ptosis and they were at high cardiovascular risk. The evolution under optimal equilibrium of diabetes and control of cardiovascular risk factors was marked by regression and disappearance in 4 patients, homo or contralateral recurrence in 4 patients and persistence of the palsy in 1 patient.
Conclusion: Glycemic equilibrium and ischemic phenomena due to cardiovascular risk factors are at the root of these oculomotor paralyses in diabetic patients. The evolution of diabetic mononevritis remains unpredictable despite the control of blood glucose levels and cardiovascular risk factors.

Keywords:

Diabetes mellitus, nerve palsy, Diabetic mononeuropathy

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