[Myotonic dystrophy type 1 - a rare cause of bradycardia in the young].

Myotonic dystrophy type 1 (Steinert's disease) is a rare but important cause of bradycardia in the young. Syncope is primarily considered to be caused by high-degree atrioventricular block II-III but may also be caused by sinus node dysfunction. Life-threatening ventricular arrhythmias do occur, and in cases with impaired systolic left ventricular function, indication for a primary preventive implantable cardiac defibrillator should be evaluated.

[Hemichorea/hemiballism a rare complication of hyperglycemia].

We present a case of hemichorea/hemiballism, a rare complication of hyperglycemia. Diagnosis is made clinically by signs of unilateral involuntary movements of the extremities combined with typical neuroradiological findings in the basal ganglia. Guidelines for treatment of the condition are lacking but in many cases correction for hyperglycemia is sufficient for full symptom relief.