摘要:
This document relates to methods and materials involved in diagnosing sleep apnea and assessing the effectiveness of a treatment for sleep apnea. For example, methods and materials for using markers to determine whether or not a mammal (e.g., a human) has sleep apnea are provided. In addition, methods and materials that can be used to determine whether or not a mammal (e.g., a human) responds to a sleep apnea treatment are provided.
摘要:
Perfused tissue is illuminated and light passing through the tissue or reflected from it is detected to produce an electrical signal. Amplitude pulses corresponding to the subject's heart beat are detected in the electrical signal and the areas of these pulses are calculated to produce blood flow values indicative of the blood volume pumped by the heart. The blood flow values may be used alone or in combination with other measured cardiac parameters to evaluate cardiac function.
摘要:
Among the techniques described herein is a method that includes obtaining data indicating electrocardiogram results from a human. A plurality of beats represented in the electrocardiogram results can be identified. For each beat in the plurality of beats represented in the electrocardiogram results, a value for a first feature of the beat can be determined. Statistical analysis can be performed on the values for the first feature of the plurality of beats. An indication of the level of the analyte within the human can be generated based on a result of the statistical analysis performed on the values for the first feature of the plurality of beats. The indication of the level of the analyte within the human can be provided.
摘要:
This document describes, among other things, a computer-implemented method that includes accessing, by a computer system, electrogram data for a patient, wherein the electrogram data is obtained using one or more leads that sense physiological electrical activity of the patient. The computer system can identify one or more waveform features from the electrogram data, and one or more correlations between values of the one or more waveform features and analyte levels. One or more estimated analyte levels in the patient are determined based on 1) the one or more waveform features identified from the electrogram data and 2) the one or more correlations. The computer system can output information related to the one or more estimated analyte levels.
摘要:
A method and apparatus for monitoring the application of a vagus nerve stimulation signal includes a detection circuit having an amplifier, a filter, and a signal prolongation circuit. The signal prolongation circuit rectifies a detected vagus nerve signal and provides the signal to a Schmitt trigger extending the length of the signal. Because of the prolongation of the signal, the signal can be sampled at a relatively low rate, and real time data illustrating the response of various physiological signals to the application of the vagus nerve signal can be monitored, thereby providing clinical data for monitoring and adjusting the applied stimulation.