[Vertigo and dizziness related to platelet aggregability].
Platelet aggregates were measured in 82 cases with vertigo and dizziness and 60 cases with additional symptom of headache (so-called cervical vertigo). Results showed that patients with vertigo and dizziness had increased aggregability and patients with cervical vertigo were within normal range (p < 0.0001). 53 cases of these with vertigo and dizziness were administrated platelet aggregation inhibitors (mainly ticlopidine). After 1 approximately 2 weeks, most of patients became symptom free, and at this time platelet aggregates of these patients were suppressed to within normal range. Then patients were followed with chronological measurements of platelet aggregates. During this time, aggregabilities were attempted to be kept within the normal range, thus dose of platelet aggregation inhibitor was controlled depending on the result of aggregability. Also patients were encouraged to show good drug compliance by being informed of sudden increasing aggregability. One patient experienced recurrence of vertigo after ceasing the medicine. This study demonstrates that platelet aggregation may increase in most of patients with not only vertigo but also dizziness in whom administration of a platelet aggregation inhibitor is effective. It also stresses that chronological measurements of platelet aggregations are important to control the dose of medication.
Shimoji
T
T
Department of Neurosurgery, Okinawa Prefectual Naha Hospital, Japan.
Yamada
M
M
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004244:Dizziness / Q000097:blood* / Q000188:drug therapy / Q000209:etiology; D005260:Female; D006261:Headache / Q000097:blood / Q000188:drug therapy / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010974:Platelet Aggregation; D010975:Platelet Aggregation Inhibitors / Q000008:administration & dosage; D013988:Ticlopidine / Q000008:administration & dosage; D014717:Vertigo / Q000097:blood* / Q000188:drug therapy / Q000209:etiology
D010975:Platelet Aggregation Inhibitors; D013988:Ticlopidine