Short communicationHyperglycemic chorea/ballism ascertained over 15 years at a referral medical center
Introduction
Acquired, adult-onset chorea/ballism that is unrelated to medications or stroke has a relatively limited differential diagnosis, such as chorea associated with circulating lupus anticoagulant, JAK2-polycythemia vera or a paraneoplastic syndrome (e.g., CRMP-5).
A distinctive syndrome of chorea/ballism developing during or shortly after an episode of non-ketotic hyperglycemia may be initially overlooked or misdiagnosed [[1], [2], [3], [4]]. This is often associated with T1 MRI hyperintensity of the striatum/putamen [1,2,4,5], sometimes misinterpreted as striatal hemorrhage [6,7]. The presentation of the chorea/ballism may be dramatic, with the chaotic, hyperkinetic movements impairing normal motor function. The purpose of this study is to ascertain the frequency of this uncommon condition at a large referral center (Mayo Clinic - Rochester), and characterize the demographics, treatment responses and outcomes.
Section snippets
Methods
We used the electronic records system at Mayo Clinic–Rochester to identify patients diagnosed with chorea or ballism during a 15 year epoch, from January 1st, 2000 through December 31st, 2014. This would have included reviews of all in-patient and out-patient evaluations from the entire Mayo Clinic database. Each medical record was individually reviewed to confirm chorea/ballism. We then selected those cases where chorea/ballism was time-locked to hyperglycemic episodes (i.e., within 30 days;
Results
During the 15 year study period, 740 Mayo Clinic patients matched our search criteria. After chart review, 596 cases were confirmed as having chorea/ballism. We then identified patients where chorea/ballism subacutely developed in association with a discreet episode of marked hyperglycemia (glucose >300 mg/dL), totaling seven cases. These seven cases reflected approximately 1% of all Mayo Clinic chorea cases during the 15 years of study. Of the seven patients, four were also given a new
Discussion
Non-ketotic hyperglycemia appears to be a very uncommon cause of chorea, with only about 1% of our Mayo chorea cases having this etiology (7/596). Although not tabulated in this study, it seems very likely that chorea complicating non-ketotic hyperglycemia is even less common. This begs the question whether such affected patients have predisposing features. Although no unique factor surfaced in our analysis, notable among our affected patients were several demographic findings. This included
Conclusion
Neurologists, movement disorder specialists, primary care physicians, internists, and endocrinologists may encounter hyperglycemic chorea/hemiballism. The subacute onset and unilaterality may suggest a stroke, or the associated MRI T1 striatal hyperintensity may suggest a cerebral bleed. The correct diagnosis is suggested by the temporal association with a hyperglycemic episode. Often the chorea is pronounced, and a dopamine blocking drug (neuroleptic) is required. However, continuation of
Authors' roles
Conor Ryan (CR), J. Eric Ahlskog (JEA), Rodolfo Savica (RS).
1) Research project: A. Conception (JEA, RS), B. Organization (CR, JEA, RS), C. Execution (CR, RS);
2) Statistical Analysis: A. Design (CR, JEA, RS), B. Execution (CR, RS), C. Review and Critique (CR, JEA, RS);
3) Manuscript: A. Writing of the first draft (CR), B. Review and Critique (JEA, RS).
Financial disclosures and conflicts of interest
None (for any authors).
Funding sources
None.
References (11)
Chorea-ballism associated with nonketotic hyperglycaemia or diabetic ketoacidosis: characteristics of 25 patients in Korea
Diabetes Res. Clin. Pract.
(2011)Persistent chorea triggered by hyperglycemic crisis in diabetics
Mov. Disord.
(2001)Hemichorea/Hemiballism associated with hyperglycemia: report of 20 cases
Tremor Other Hyperkinet. Mov. (N.Y.)
(2016)Hyperglycemic choreoathetosis: role of the putamen in pathogenesis
Mov. Disord.
(2009)Temporal features of magnetic resonance imaging and spectroscopy in non-ketotic hyperglycemic chorea-ballism patients
Eur. J. Neurol.
(2010)
Cited by (38)
Diabetic striatopathy and other acute onset de novo movement disorders in hyperglycemia
2024, Diabetes and Metabolic Syndrome: Clinical Research and ReviewsDiabetic striatopathy: A rare and treatable complication of diabetes mellitus
2021, NPG Neurologie - Psychiatrie - GeriatrieSweet Twitches: An Unusual Cause of Abnormal Unilateral Movements in a Patient with Diabetes
2021, Journal of Emergency MedicineCitation Excerpt :It occurs in the setting of long-standing hyperglycemia with or without ketosis, with an estimated prevalence of 1 in 100,000, although this may be an underestimate due to potential misdiagnosis as intracerebral hemorrhage (1,2). Imaging characteristics that differentiate diabetic striatopathy from intracerebral hemorrhage include the absence of perilesional edema and sparing of white matter (1). Additional considerations for patients with unilateral hyperkinetic movements and hyperglycemia include partial complex seizures, dystonic reactions, tardive dyskinesia, or parkinsonian syndromes, although these will lack the unique findings on CT or magnetic resonance imaging.
Iatrogenesis and neurological manifestations in the elderly
2020, Revue NeurologiqueCitation Excerpt :In elderly patients, other drugs may be anticonvulsants (such as phenytoin, gabapentin, carbamazepine and valproate), anticholinergics, antihistaminic drugs, antidepressants and Lithium. Non-ketotic hyperglycemia and hypoglycemia are possible causes of chorea in elderly patients with poorly controlled diabetes, hence indirectly an adverse effect of anti-diabetic medication, and should be looked for as it can be reversible [34]. The cerebellum is particularly sensitive to insults in the elderly thus many drugs can induce cerebellar ataxia among which anticonvulsants (phenytoin, carbamazepine), anti-cancer drugs, immunosuppressants (cyclosporine, tacrolimus) and lithium [27].
Unveiling Diabetes: Categories, Genetics, Diagnostics, Treatments, and Future Horizons
2024, Current Diabetes ReviewsDiabetic striatopathy: an updated overview of current knowledge and future perspectives
2024, Journal of Endocrinological Investigation