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Canadian Journal of Anesthesia, Vol 32, 548-550, Copyright © 1985 by Canadian Anesthesiologists' Society

Technical Report: Use of a Modified Doppler Flow Detector for Percutaneous Cannulation of the Internal Jugular Vein

KWOK C. LEE MENG MD PHD1 and HERBERT M. CHINYANGA MSC MD FRCPC1

1 Departments of Anaesthesia, Wellesley Hospital and The Hospital for Sick Children, University of Toronto, Toronto, Ontario

Address correspondence to: Dr. K. Lee, Department of Anaesthesia, the Wellesley Hospital, 160 Wellesley Street E., Toronto, Ontario M4Y 1J3.

To lessen the risks associated with cannulation of the internal jugular vein, a method to identify the contours of the carotid artery and internal jugular vein at the site of cannulation is proposed. This method uses a doppler flow detector equipped with an adjustable electronic filter which selectively enhances the sound component due either to the arterial or venous flow. This method has been applied clinically and was found to be useful in the identification of the vessels. Since doppler flow detectors are readily available in many hospitals and the required modification is simple, we hope that other institutions will find this technique useful in their clinical practice.

Key Words: ANAESTHETIC TECHNIQUES: CVP catheterization • COMPLICATIONS: internal jugular vein cannulation • EQUIPMENT: doppler flow detector






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Copyright © 1985 by the Canadian Anesthesiologists' Society.