Abstract
The determination of arterial blood pressure is afundamental part of basic cardiovascular monitoring in perioperative, intensive care and emergency medicine. Blood pressure can be measured directly via an arterial catheter, which is the most accurate method. Blood pressure is most commonly monitored using noninvasive intermittent methods with an occluding upper arm cuff. Noninvasive intermittent blood pressure measurements can also be performed either manually using palpation and auscultation or automatically based on an oscillometric algorithm. Furthermore, methods such as the vascular unloading technique with a finger plethysmographic sensor are available for continuous and noninvasive blood pressure monitoring. This article explains the principles of the individual methods, the sources of errors, advantages and disadvantages and discusses the fields of application in the clinical routine.
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