[Headache after spinal analgesia with reference to the type of analgesic agent used (author's transl)].

The incidence and localization of headache after spinal analgesia were studied by means of a questionnaire. The case material comprised 503 spinal analgesias carried out with a 4% hyperbaric and a 2% isobaric solution of mepivacaine respectively and with 0.5% isobaric solution of bupivacaine. The use of the 4% solution of mepivacaine was followed by an increased incidence of prolonged dull headache in the occipital region. The observations suggest that the occurrence of headache after spinal analgesia may also depend on the type of analgesic agent employed.