Congenital heart disease monitor
A congenital heart disease monitor utilizes a sensor capable of emitting multiple wavelengths of optical radiation into a tissue site and detecting the optical radiation after attenuation by pulsatile blood flowing within the tissue site. A patient monitor is capable of receiving a sensor signal corresponding to the detected optical radiation and calculating at least one physiological parameter in response. The physiological parameter is measured at a baseline site and a comparison site and a difference in these measurements is calculated. A potential congenital heart disease condition in indicated according to the measured physiological parameter at each of the sites or the calculated difference in the measured physiological parameter between the sites or both.
1. An electronic monitor for detection of congenital heart disease, the electronic monitor comprising one or more hardware processors configured to:
determine a first oxygen saturation corresponding to a first measurement site on a patient;
determine a second oxygen saturation corresponding to a second measurement site on the patient;
determine a difference between the first oxygen saturation and the second oxygen saturation;
determine a rate of change of the difference between the first oxygen saturation and the second oxygen saturation; and
generate an indicator for display, wherein the indicator is generated based on an application of:
same channel rules on the first saturation value at the first measurement site or the second saturation value at the second measurement site, and
cross-channel rules on the difference and the rate of change of the difference, and
wherein the indicator corresponds to the detection of congenital heart disease.
2. The electronic monitor of claim 1 , further comprising a display to display the indicator.
3. The electronic monitor of claim 1 , further comprising a sensor configured to emit optical radiation having a plurality of wavelengths into measurement sites and to detect the optical radiation after attenuation by pulsatile blood flowing within the measurement sites.
4. The electronic monitor of claim 1 , wherein the indicator comprises a first indicator and a second indicator, wherein the first indicator represents a higher risk of congenital heart disease than the second indicator.
5. The electronic monitor of claim 4 , wherein a first color of the first indicator is different than a second color of the second indicator.
6. The electronic monitor of claim 1 , wherein the one or more hardware processors are further configured to compare the first oxygen saturation corresponding to the first channel with a saturation limit threshold.
7. The electronic monitor of claim 1 , wherein the one or more hardware processors are further configured to compare the second oxygen saturation corresponding to the second channel with the saturation limit threshold.
8. The electronic monitor of claim 1 , wherein the one or more hardware processors are further configured to compare the difference of oxygen saturation with a cross channel saturation limit threshold.
9. The electronic monitor of claim 1 , wherein the one or more hardware processors are further configured to compare the rate of change of the difference of oxygen saturation over time between the first channel and the second channel with a cross channel saturation trend threshold.
10. An electronic monitoring method for detection of congenital heart disease, the electronic monitoring method comprising:
determining a first oxygen saturation corresponding to a first measurement site on a patient;
determining a second oxygen saturation corresponding to a second measurement site on the patient;
determining a difference between the first oxygen saturation and the second oxygen saturation;
determining a rate of change of the difference between the first oxygen saturation and the second oxygen saturation; and
generating an indicator for display, wherein the indicator is generated based on an application of:
same channel rules on the first saturation value at the first measurement site or the second saturation value at the second measurement site; and
cross-channel rules on the difference and the rate of change of the difference, and
wherein the indicator corresponds to the detection of congenital heart disease.
11. The electronic monitoring method of claim 10 , further comprising displaying the indicator.
12. The electronic monitoring method of claim 10 , further comprising emitting optical radiation having a plurality of wavelengths into measurement sites and detecting the optical radiation after attenuation by pulsatile blood flowing within the measurement sites.
13. The electronic monitoring method of claim 10 , wherein the indicator comprises a first indicator and a second indicator, wherein the first indicator represents a higher risk of congenital heart disease than the second indicator.
14. The electronic monitoring method of claim 13 , wherein a first color of the first indicator is different than a second color of the second indicator.
15. The electronic monitoring method of claim 10 , further comprising comparing the first oxygen saturation corresponding to the first channel with a saturation limit threshold.
16. The electronic monitoring method of claim 10 , further comprising comparing the second oxygen saturation corresponding to the second channel with the saturation limit threshold.
17. The electronic monitoring method of claim 10 , further comprising comparing the difference of oxygen saturation with a cross channel saturation limit threshold.
18. The electronic monitoring method of claim 10 , further comprising comparing the rate of change of the difference of oxygen saturation over time between the first channel and the second channel with a cross channel saturation trend threshold.