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Canadian Journal of Anesthesia, Vol 42, 910-913, Copyright © 1995 by Canadian Anesthesiologists' Society

ARTICLES

Non-invasive continuous haemodynamic and PETCO2 monitoring during peroperative cardiac arrest

PY Gueugniaud, R Muchada, M Bertin-Maghit, N Griffith and P Petit
Department of Anaesthesiology, Edouard Herriot Hospital, University of Lyon 1, France.

We describe a cardiac arrest which occurred during general anaesthesia in the prone position for surgical correction of lumbar kyphosis in a patient with Marfan's syndrome. Peroperative monitoring was routine with ECG, non-invasive arterial pressure, oximetry, PETCO2 and central venous pressure, plus aortic blood flow and and systolic time intervals via an oesophageal echo-Doppler device. Forty-five minutes after the start of surgery, a sudden decrease in aortic blood flow followed by a decrease in PETCO2 suggested acute cardiac failure despite continuation of the ECG signal. Initial CPR in the prone position produced a slight increase in PETCO2. When the patient was turned to the supine position and the legs elevated, chest compression was more efficient and spontaneous circulation was rapidly restored. Circulatory arrest could be explained by incompletely treated hypovolaemia, or by myocardial depression (decrease in aortic blood flow and lengthened pre-ejection period) combined with excessive hypotension in a patient with Marfan's syndrome, thus compromising coronary blood flow producing ST segment depression. Continuous non-invasive aortic blood flow and PETCO2 monitoring proved valuable in the early detection and treatment of circulatory arrest and in the evaluation of the efficiency of peroperative CPR.


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H. Edgcombe, K. Carter, and S. Yarrow
Anaesthesia in the prone position
Br. J. Anaesth., February 1, 2008; 100(2): 165 - 183.
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