SHOCK OR SEPSIS EARLY DETECTION METHOD AND SYSTEM
First Claim
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1. A method, comprising:
- using processing circuitry;
receiving a first signal from a first sensor in contact with a tracheal tissue of a patient, wherein the first signal is representative of a level of carbon dioxide or a pH of the tracheal tissue;
receiving a second signal from a second sensor, wherein the second signal is representative of an end-tidal level of carbon dioxide during respiration of the patient or an arterial level of carbon dioxide or an arterial pH; and
determining whether the patient is at risk for developing shock or sepsis based at least in part on a relationship between the level of carbon dioxide or pH of the tracheal tissue and the end-tidal level of carbon dioxide or the arterial level of carbon dioxide or the arterial pH.
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Abstract
According to various embodiments, a medical system and method for early detection of shock and/or sepsis may include devices configured to provide information about carbon dioxide and/or pH levels in a patient'"'"'s tracheal tissue and in a respiratory path. Specifically, a relationship between carbon dioxide and/or pH in the tracheal tissue vs. respiratory gases (e.g., lung gases) may be used to determine if a patient is at risk of developing shock or sepsis. In certain embodiments, if carbon dioxide in the tracheal tissue deviates from end-tidal carbon dioxide, a patient may be experiencing early stages of hypoperfusion associated with shock and/or sepsis.
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Citations
20 Claims
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1. A method, comprising:
using processing circuitry; receiving a first signal from a first sensor in contact with a tracheal tissue of a patient, wherein the first signal is representative of a level of carbon dioxide or a pH of the tracheal tissue; receiving a second signal from a second sensor, wherein the second signal is representative of an end-tidal level of carbon dioxide during respiration of the patient or an arterial level of carbon dioxide or an arterial pH; and determining whether the patient is at risk for developing shock or sepsis based at least in part on a relationship between the level of carbon dioxide or pH of the tracheal tissue and the end-tidal level of carbon dioxide or the arterial level of carbon dioxide or the arterial pH. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A monitor, comprising:
processing circuitry configured to execute instructions for; receiving a first signal from a first carbon dioxide sensor in contact with a tracheal tissue of an intubated patient; determining a level of carbon dioxide in the tracheal tissue based on the first signal; receiving a second signal from a second carbon dioxide sensor in fluid communication with a respiratory circuit of the intubated patient; determining an end-tidal level of carbon dioxide during respiration based on the second signal; and determining a clinical condition of the patient based at least in part on a relationship between the level of carbon dioxide in the tracheal tissue and the end-tidal level of carbon dioxide. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A respiratory system, comprising:
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a tracheal tube comprising a passageway for conveying gases to a patient; a first sensor associated with an exterior of the tracheal tube and configured to contact a tracheal tissue when the tracheal tube is inserted in the patient; a second sensor in fluid communication with the passageway; and a monitor operatively coupled to the first sensor and the second sensor, the monitor comprising; processing circuitry configured to execute instructions for; receiving a first signal from the first sensor, wherein the first signal is representative of a level of carbon dioxide or a pH of the tracheal tissue; receiving a second signal from the second sensor, wherein the second signal is representative of an end-tidal level of carbon dioxide during respiration of the patient; and determining whether the patient is at risk for developing shock or sepsis based at least in part on a relationship between the level of carbon dioxide or pH of the tracheal tissue and the end-tidal level of carbon dioxide. - View Dependent Claims (18, 19, 20)
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Specification