Baselines matter—customise care for each patient’s “normal.”
Overview
What is “normal”? And why is establishing an individualised baseline so critical?
When it comes to an individual patient’s measurement, “normal” can cover a wide range.
Establishing an individualised baseline shows you where each patient’s physiologic “normal” range begins and ends so that you can customise care for that individual.
The INVOS™ system customises care for each patient's “normal.”
The INVOS™ cerebral/somatic oximeter features a baseline setting that provides additional dimension and value to the rSO2 measurement.
Combine this baseline with continuous monitoring and the result is critical, early warnings of developing pathology and deteriorating patient condition.([FOOTNOTE=Aron JH, Fink GW, Swartz MF, et al. Cerebral oxygen desaturation after cardiopulmonary bypass in a patient with raynaud’s phenomenon detected by near-infrared cerebral oximetry. Anesth Analg. 2007;104(5):1034-1036.],[ANCHOR=],[LINK=]),([FOOTNOTE=Alie RF, Hymes W, Kooperman S. Intra-aortic balloon counterpulsation in an off-pump procedure shows improved cerebral perfusion by near-infrared spectroscopy. J Cardiothorac Vasc Anesth. 2010;24(2):300-302.],[ANCHOR=],[LINK=]),([FOOTNOTE=Joshi RK, Motta P, Horibe M, Mossad E. Monitoring cerebral oxygenation in a pediatric patient undergoing surgery for vascular ring. Ped Anesth. 2006;16:178-181],[ANCHOR=],[LINK=]),([FOOTNOTE=Schwartz JM, Vricella LA, Jeffries MA, Heitmiller ES. Cerebral oximetry guides treatment during Blalock-Taussig shunt procedure. J Cardiothorac Vasc Anesth. 2008;22(1):95-97. ],[ANCHOR=],[LINK=])
This is the kind of timely information you need—and can rely on—during surgery.
Unlike pulse oximetry, which measures arterial oxygen, the INVOS™ system measures rSO2, a reflection of cerebral venous saturation.
This is an important distinction, because cerebral saturation has a much wider range of normal values (45% to 75%) than arterial saturation, which has a very narrow range.
With this wider range of cerebral saturation, clinicians will make more informed decisions about intervention during surgery, based on the most individualised “normal” for each patient.
The end result? Studies have demonstrated that intervening based upon a relative drop of rSO2 from baseline improved patient outcomes.([FOOTNOTE=Murkin JM, Adams SJ, Novick RJ, et al. Monitoring brain oxygen saturation during coronary bypass surgery: a randomized, prospective study. Anesth Analg. 2007;104(1):51-58.],[ANCHOR=],[LINK=]),([FOOTNOTE=Casati A, Fanelli G, Pietropaoli P, et al. Continuous monitoring of cerebral oxygen saturation in elderly patients undergoing major abdominal surgery minimizes brain exposure to potential hypoxia. Anesth Analg. 2005;101(3):740-747.],[ANCHOR=],[LINK=])
