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Pupillary signs during cardiac surgery
Author(s) -
WOODALL N. M.,
MARYNIAK J. K.,
GILSTON A.
Publication year - 1989
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.1365-2044.1989.tb09140.x
Subject(s) - pupil , medicine , pupil size , cardiopulmonary bypass , neurological deficit , surgery , anesthesia , ophthalmology , neuroscience , biology
Summary Pupil sizes and reactions to light were studied in 100 patients who had cardiopulmonary bypass. Behaviour of the pupils was observed at six stages during the operation. Most patients (71) had pupils of equal size and similar reaction to light at all times. Twenty‐three patients developed unequal pupils at some stage, while six had equal pupils throughout but exhibited differing reaction to light. Major cerebral deficit was significantly more common after operation in patients who developed inequality in pupil size than those who did not (p < 0.05). No relationship was seen between dissimilar pupil reaction to light and the development of neurological complications. The clinical estimation of pupil size may help to identify those patients who may exhibit postoperative major neurological dysfunction.