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Monitors designed for continuous non-invasive measurement and display of jugular venous oxygen saturation (SjvO2). These monitors typically use near-infrared spectroscopy to perform non-invasive measurement of hemoglobin oxygen saturation in the jugular vein, which is an indicator of the balance between cerebral blood flow and cerebral oxygen consumption. These monitors typically consist of a main unit that includes controls and a display. The main unit is connected to a sensor that is placed on the patient\'s skin overlying the jugular vein.
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