Reversible hypomagnesaemia-induced subacute cerebellar syndrome.

Area of Science:

• Neuroscience
• Cardiology
• Biochemistry

Background:

• Magnesium is essential for cellular function, acting as a cofactor in numerous enzymatic reactions.
• Magnesium deficiency (hypomagnesaemia) can lead to significant cardio- and neurotoxicity.
• Clinical manifestations of hypomagnesaemia are diverse and can affect multiple organ systems.

Observation:

• A patient presented with severe hypomagnesaemia.
• Neurological symptoms included intermittent downbeat nystagmus and cerebellar ataxia.
• Cardiac and seizure activity manifested as supraventricular tachycardia and generalized convulsions.

Findings:

• The study details a case of severe hypomagnesaemia with complex clinical features.
• Magnetic Resonance Imaging (MRI) revealed a transient lesion in the cerebellar nodulus.
• This specific cerebellar lesion associated with isolated hypomagnesaemia has not been previously documented.

Implications:

• Highlights the critical role of magnesium in neurological and cardiac function.
• Suggests a potential link between hypomagnesaemia and specific cerebellar lesions.
• Underscores the importance of recognizing and treating magnesium deficiency to prevent severe clinical outcomes.