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Plasma catecholamine concentrations—changes after infiltration with local anaesthetic solutions and adrenaline during bat‐ear surgery
Author(s) -
Lew J. K. L.,
Mobley K. A.,
Achola K. J.,
Smith G.
Publication year - 1988
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1988.tb06640.x
Subject(s) - catecholamine , medicine , infiltration (hvac) , epinephrine , anesthesia , plasma concentration , venous blood , surgery , endocrinology , physics , thermodynamics
Summary Plasma catecholamine concentrations were measured in 12 patients who had bilateral bat‐ear surgery following infiltration of each ear with 2 ml 2% lignocaine with adrenaline 1: 100 000. Venous blood samples were withdrawn before and at set intervals after infiltration. Plasma adrenaline concentration increased from 0.8 pmol/ml to a peak of 2.2 pmol/ml at 2 minutes after infiltration: this is cm increase of 175%. There was no significant change in plasma noradrenaline concentration.