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Updated: Aug 20, 2026
Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery
Published on: November 28, 2018
[Pulse wave velocity can predict hemodynamic responses to induction of anesthesia and tracheal intubation]
Fumiaki Mimura1, Kunio Sugimori
1Department of Anesthesiology, Chiba University Graduate School of Medicine, Chiba 260-8670.
Background:
The degree of aortic stiffness can be evaluated by noninvasive measurement of pulse wave velocity (PWV). We investigated hemodynamic responses to induction of anesthesia and tracheal intubation, and hypothesized that preoperative measurement of PWV might predict these responses.
Methods:
PWV was measured before operation by using automatic PWV measurement device. Patients were anesthetized with fentanyl (1 microg x kg(-1)) and propofol (target controlled infusion at 2.5 microg x ml(-1)), and tracheal intubation was facilitated with vecuronium (1.5 mg x kg(-1)). Hemodynamic data were recorded from the start of anesthesia to 5 minutes after the tracheal intubation.
Results:
Twenty patients completed the study. There was a significant correlation between PWV and percent changes in systolic blood pressure during anesthesia induction. However, a significant correlation between PWV and percent changes in systolic blood pressure after tracheal intubation was found only in the patients without antihypertensive medications.
Conclusions:
Preoperative PWV measurement was useful to predict hemodynamic responses to induction of anesthesia and tracheal intubation.
