Seizures and hyponatremia after excessive intake of diet coke.

We describe a case of epileptic seizures after a massive intake of diet coke. Apart from the hyponatremia due to water intoxication the convulsions can be potentiated by the high dose of caffeine and aspartame from the diet coke. To our knowledge this is the first report of seizures due to excessive diet coke intake.

Cardiac involvement and CTG expansion in myotonic dystrophy.

Although cardiac complications are well known in myotonic dystrophy (DM), patients rarely manifest symptoms of cardiac disease, and if so they most often show conduction abnormalities or arrhythmia. In this study, specific cardiac findings were reviewed in 79 patients with DM. No correlation was found between the cardiac assessments and the CTG expansion.

Diagnosis of ulnar neuropathy: a new approach.

Conventional electrodiagnosis used to detect an ulnar neuropathy at the elbow depends on accurate determination of ulnar nerve length across this segment. We present a new approach, using the difference in latency of the compound nerve action potentials (CNAPs) of the ulnar and median nerves elicited by stimulation at the wrist and recorded 10 cm above the elbow. Sixty normal controls were examined in order to determine the normal upper limit (1.