Автор |
FAIRLEY, J. W. |
Автор |
REYNOLDS, F. |
Дата выпуска |
1981 |
dc.description |
The duration of action and vascular effects of L(+) and D(−) and racemic mepivacaine were investigsted in a double-blind study in 23 fit volunteers. Isosmolar 0.1-ml intradermal injections of a range of concentrations of each agent from 0.011% to 2.7%, and physiological saline were given in duplicate to at least 14 subjects. Local colour changes were observed 5–10 min after injection, and analgesia to pinprick was tested at 5-min intervals thereafter until full recovery. Both isomers were vasoconstrictor at concentrations of 0.3% and less; at greater concentration the L isomer produced more vasodilatation and haemorrhagic change. The duration of action of both isomers increased with concentration between 0.05 and 0.9%, but the L isomer was significantly longer acting than the D at 0.3% and more. The log dose-duration curve could be interpreted as linear between 0.1 and 0.9% with the slope of L isomer being twice as steep as the D. The findings for racemic mepivacaine were between those of the two isomers. The longer duration of analgesia of L-mepivacaine was not associated with superior vasoconstrictor power. |
Формат |
application.pdf |
Издатель |
Oxford University Press |
Копирайт |
© Macmillan Publishers Ltd |
Тема |
EXPERIMENTAL |
Название |
AN INTRADERMAL STUDY OF THE LOCAL ANAESTHETIC AND VASCULAR EFFECTS OF THE ISOMERS OF MEPIVACAINE |
Тип |
research-article |
Electronic ISSN |
1471-6771 |
Print ISSN |
0007-0912 |
Журнал |
BJA: British Journal of Anaesthesia |
Том |
53 |
Первая страница |
1211 |
Последняя страница |
1216 |
Аффилиация |
Anaesthetic Unit, St Thomas's Hospital Medical SchoolLondon SE1 7EH |
Аффилиация |
FAIRLEY J. W.; St Helier Hospital |
Выпуск |
11 |