Introduction Reliable and accurate pulse oximetry requires the design and operation of the entire system to function together. Contributions ranging from the sensor technology, cabling and electronics, signal processing and alarm technologies, to communicating results to caregivers through local and remote displays, are all critical and interrelated (Figure 1). Many years of experience in each ...

We read with great interest the article by Aldrich et al 1 in this issue of CHEST (see page 1484 ). In 2003, we reported our trial of measuring noninvasive arterial saturation during a pulseless situation (cardiopulmonary bypass [CPB]) by inducing a simulated pulse. 2 We were interested in fi nding a way to obtain pulse oximeter function during CPB at the time because we had experienced a morta...

The non-invasive pulse-oximeter is a crucial parameter in continuous monitoring systems. It plays a vital role from admission of the patient to surgeries with general anaesthesia. The paper proposes the application of wavelet transform to delineate the raw plethysmograph signals obtained from basic portable and mobile-powered electronic hardware. The paper primarily focuses on finding peaks and...

There is an error in the first three sentences under the subheading “Cut-Off value of SpO2” in the Results section. The correct sentences are: We hypothesized that the cut-off value of each pulse oximeter to detect hypoxemia (SaO2< = 90% or PaO2< = 60 mmHg) was different. We calculated the sensitivity, specificity, PPV, and NPV of each pulse oximeter to detect hypoxemia. As shown in Table 5, th...

An optical surgical navigation system is used as a navigator to facilitate surgical approaches, and pulse oximeters provide valuable information for anesthetic management. However, saw-tooth waves on the monitor of a pulse oximeter and the inability of the pulse oximeter to accurately record the saturation of a percutaneous artery were observed when a surgeon started an optical navigation syste...

RATIONALE Although home cardiorespiratory monitors have been used for a few decades, they do not give information on oxygenation status during events. Pulse oximeters with low false-alarm rates are now available but with no standards for alarm adjustment. OBJECTIVE To determine, in a population of children monitored at home with a pulse oximeter, whether the chosen alarm levels could safely i...

Heart rate is a very vital part for the human body, if heart exceeds maximum limit it will be dangerous body. So we need recorder that can store data from recorded in order to make easier control health. This study aims test recording system with comparison of factory-made device, namely an oximeter. research starts creating framework stage outline sequence carried out. increased after exercise...