A 28-year-old man with regularly occurring clusters of complex partial seizures was studied over a total of 224 days. His seizure periods lasted 2-4 days and occurred at intervals of 5-6 weeks. Several parameters were studied. The most striking finding was an increase in the serum concentration of thyroxine prior to and during the seizure periods. The concentrations of urine catecholamines and serum cortisol also varied with the seizure periods, but these hormones increased after the seizure periods had begun. To determine if there is a general 4-6-week rhythm in thyroid hormone concentrations, 12 weekly blood samples from 10 healthy male students were analyzed. No rhythmicity was found.

Adult↗

PubMedDate not supplied

Effect of physical training on aerobic capacity, seizure occurrence, and serum level of antiepileptic drugs in adults with epilepsy.

Twenty-one adult in-patients (11 women, 10 men, aged 18-39 years) with uncontrolled epilepsy participated in a 4-week intensive physical training program, exercising for at least 45 min three times a day, 6 days a week, at an intensity of minimum 60% of maximum oxygen uptake (maximum VO2). The program induced a considerable increase in maximum VO2 (mean 19%). Beneficial psychological and social effects were also recorded. The average seizure frequency during the 4-week exercise period was compared with 2 preexercise and 2 postexercise weeks. There was no significant difference, but there was considerable variation among patients. Only six patients had seizures during exercise. The occurrence had no relation to seizure type, mode of activity, or pulse rate. We conclude that physical activity does not represent an important seizure-inducing factor in general, and that in most people with epilepsy physical training appears to have a favorable influence. The exact mechanism behind this influence is not known, but physiologic as well as psychological and social effects may be of importance. Physical training did not change the serum levels of the antiepileptic drugs to a clinically important degree.

Adolescent↗

PubMedDate not supplied

Cognitive function and time-of-day variation in serum carbamazepine concentration in epileptic patients treated with monotherapy.

Different parameters of antiepileptic drug (AED) treatment have been shown to affect cognitive function. The drug, dose, and duration of treatment have been studied. The present study assessed cognitive function in relation to time-of-day variation in serum carbamazepine (CBZ) concentration in epileptic patients treated with monotherapy. We studied 10 males and 12 females with a mean age of 36 years and a mean duration of CBZ-therapy of 4.4 years. Patients had been seizure-free for at least 1 month and took two daily CBZ doses. The test battery included tests of motor speed, reaction time, attention, and memory. In the experimental design, the subjects were tested twice at times close to expected daily maximum and minimum serum CBZ concentration. They were studied in two balanced blocks (block 1 tested at 8 a.m. and noon, block 2 tested at noon and 8 p.m.). Blood samples were collected every 2 hr from 8 a.m. to 8 p.m. The subjects showed significant differences in serum CBZ concentration between testing times, with suggested maximum concentration between 10 a.m. and noon. The test battery showed no consistent differences between performance at times of high versus low serum concentration. A supplementary analysis of correlations between mean performance level on cognitive tests and variables related to CBZ treatment did not show consistent trends.

Adolescent↗