Determining the best method of Nellcor pulse oximeter sensor application in neonates

Area of Science:

• Neonatal care
• Medical device usability
• Physiological monitoring

Background:

• Accurate heart rate (HR) monitoring is crucial for assessing the well-being of infants.
• The Nellcor OxiMax N-600x pulse oximeter (PO) is a common device used for this purpose.
• The sensor application method may influence the speed and accuracy of HR data acquisition.

Purpose of the Study:

• To determine the most efficient sensor application technique for the Nellcor OxiMax N-600x pulse oximeter (PO).
• To identify the method that provides the quickest display of accurate heart rate (HR) data in infants.

Main Methods:

• A study involving stable infants monitored with electrocardiography (ECG).
• Three sensor application techniques were compared: (i) sensor to cable then infant, (ii) sensor to cable to investigator's finger then infant, (iii) sensor to infant then cable.
• Times for sensor application, data display, and accurate data display (HR(PO) = HR(ECG) ± 3 bpm) were recorded.

Main Results:

• Forty infants participated in the study.
• Method 3 (sensor applied to infant before connecting to cable) acquired data significantly faster than methods 1 and 2.
• Method 3 also acquired accurate data significantly faster than method 1.

Conclusions:

• Attaching the pulse oximeter (PO) sensor to the infant prior to connecting the cable is the most effective method.
• This technique leads to the fastest acquisition of accurate heart rate (HR) data using the Nellcor OxiMax N-600x.