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THE ARTERIAL, VENOUS PRESSURES AND THE ELECTROENCEPHALOGRAM DURING OPEN HEART SURGERY
Author(s) -
Juneja Ish,
Flynn Robert E.,
Berger Robert L.
Publication year - 1972
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1972.tb07537.x
Subject(s) - medicine , venous pressure , electroencephalography , blood pressure , cerebral blood flow , anesthesia , cardiology , mean arterial pressure , venous blood , heart rate , psychiatry
ABSTRACT Two hundred and fifty‐seven recordings of arterial pressure and one hundred and ninety‐one recordings of the venous pressure were correlated with incidental, quantitative electroencephalographic findings during open heart surgery in thirty‐four patients. A fall in mean arterial pressure to 50 mm of mercury and below was invariably associated with electroencephalographic slowing. This was defined as the “critical” pressure below which the cerebral blood flow falls. EEG is a very sensitive index of impaired cerebral blood flow during open heart surgery.