The Cheetah NICOM is a non-invasive cardiac output monitor that has been validated in various clinical contexts but not during the occlusion of major arteries, as takes place in vascular surgery. The present study will evaluate the precision and validity of the measures taken by the device during open vascular surgery procedures. The measurements will be compared to the those calculated by transesophageal echocardiography at various key points during the surgeries. The validity of the cardiac output, stroke volume and stroke volume variation measurements will be evaluated, as well as the device's ability to track rapid changes in cardiac output.
Study Type
OBSERVATIONAL
Enrollment
20
The Cheetah NICOM will be installed on all patients to evaluate the validity of its measurements.
TEE will serve as gold standard measurements for the evaluation of the Cheetah NICOM.
Maisonneuve-Rosemont Hospital
Montreal, Quebec, Canada
RECRUITINGValidity of Stroke Volume (SV) Measurements by the Cheetah NICOM
The SV measured by the Cheetah NICOM will be compared to the one measured by transesophageal echocardiography at multiple time points during the surgery.
Time frame: Per vascular surgery procedure
Stroke Volume (SV) with a vascular cross-clamp
The SV measured by the Cheetah NICOM will be compared to the one measured by transesophageal echocardiography at multiple points once a vascular cross-clamp is installed.
Time frame: Per vascular surgery procedure when a cross-clamp is installed
Stroke Volume (SV) trending ability
Between each pair of consecutive data points, the change of SV measurements given by the Cheetah NICOM will be compared to those given by transesophageal echocardiography.
Time frame: Per vascular surgery procedure
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.