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A Mouse Model of Hemorrhagic Transformation Induced by Acute Hyperglycemia Combined with Transient Focal Ischemia

A Mouse Model of Hemorrhagic Transformation Induced by Acute Hyperglycemia Combined with Transient Focal Ischemia

Published on: November 15, 2024

Hyperglycemic Hemichorea: A Case Series.

Seoil Moon¹, Hea Eun Kim², Tae Jung Oh^2,3

¹Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.

Annals of Geriatric Medicine and Research

|June 30, 2021

Summary

Recurrent hemichorea in hyperglycemia is rare. While typically resolving with insulin, recurrence may indicate underlying vasculitis, necessitating further investigation beyond glycemic control.

Keywords:

Aged Case reports Chorea Diabetes mellitus

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Area of Science:

Neurology
Endocrinology
Internal Medicine

Background:

Hyperglycemic hemichorea (HH) is a rare neurological complication associated with uncontrolled diabetes.
Recurrent episodes of HH are exceptionally uncommon, posing diagnostic challenges.

Observation:

This study details six cases of HH, with a mean age of 77.2 years (5/6 female).
Patients presented with poor glycemic control (HbA1c 9.3%-13%) and basal ganglia hyperintensities on T1-weighted MRI.
One patient experienced recurrent hemichorea, ultimately diagnosed with vasculitis after initial resolution with insulin therapy.

Findings:

The mean duration of hemichorea was 69 days, with most cases resolving after insulin treatment and some benefiting from dopamine-receptor blockers.
Recurrence of hemichorea, even after adequate glycemic control, suggests a potential coexisting condition like vasculitis.

Implications:

Hyperglycemic hemichorea generally has a good prognosis with appropriate diabetes management.
Clinicians must consider alternative diagnoses, such as vasculitis, in cases of recurrent hemichorea, especially when symptoms persist despite improved glycemic control.