By a News Reporter-Staff News Editor at Cardiovascular Week — Cardiac Pacemakers, Inc. (St. Paul, MN) has been issued patent number 8740789, according to news reporting originating out of Alexandria, Virginia, by NewsRx editors (see also Cardiac Pacemakers, Inc.).
The patent’s inventors are Brockway, Marina (Shoreview, MN); Johnson, David (Inver Grove Heights, MN); Goscha, Don (Elk River, MN); Kadhiresan, Veerichetty A. (Centerville, MN); Srivathsa, Muralidharan (Shoreview, MN); Haeder, Lisa (New Hope, MN).
This patent was filed on March 3, 2005 and was published online on June 3, 2014.
From the background information supplied by the inventors, news correspondents obtained the following quote: “Management of patients with chronic disease consumes a significant proportion of the total health care expenditure in the United States. Many of these diseases are widely prevalent and have significant annual incidences as well. Heart failure prevalence alone is estimated at over 5.5 million patients in 2000 with incidence rates of over half a million additional patients annually, resulting in a total health care burden in excess of $20 billion. Heart failure, like many other chronic diseases such as asthma, COPD, chronic pain, and epilepsy, is event driven, where acute de-compensations result in hospitalization. In addition to causing considerable physical and emotional trauma to the patient and family, event driven hospitalizations consume a majority of the total health care expenditure allocated to the treatment of heart failure. Hospitalization and treatment for an acute de-compensation typically occurs after the de-compensation event has happened. However, most heart failure patients exhibit prior non-traumatic symptoms, such as steady weight gain, in the weeks or days prior to the de-compensation. If the caregiver is aware of these symptoms, it is possible to intervene before the event, at substantially less cost to the patient and the health care system. Intervention is usually in the form of a re-titration of the patient’s drug cocktail, reinforcement of the patient’s compliance with the prescribed drug regimen, or acute changes to the patient’s diet and exercise. Such intervention is usually effective in preventing the de-compensation episode and thus avoiding hospitalization. Patients with chronic heart disease can receive implantable cardiac devices such as pacemakers, implantable cardioverter defibrillators (ICDs), and heart failure cardiac resynchronization therapy (CRT) devices.
“Currently, the electrophysiologist that implants pacemakers and ICDs requires their patients to make clinic visits periodically, usually once every three or four months, in order to verify if their implanted device is working correctly and programmed optimally. Device follow-ups are usually performed by the nurse-staff assisted by the sales representative from the device manufacturers. Device follow-ups are labor intensive and typically require patients to make multiple clinic visits.
“The data the caregiver does receive regarding a patient requires the caregiver to analyze the data and provide predictive and post-event diagnosis based on the data. However, as the amount of data collected regarding a particular patient increases, it becomes more difficult for a caregiver to assimilate and provide a meaningful analysis of all of the data. In addition, it is difficult for a caregiver to identify trends and other information from particular patients and leverage this knowledge for the treatment of larger populations.
“Patients with a chronic disease (e.g., heart failure) usually have a number of comorbidies. When the patient’s health exacerbates, it may be difficult to identify what triggered the exacerbation from the data provided to the caregiver via the implanted devices or a physical examination of the patient. Since the caregiver is typically responsible for not only treating symptoms related to the exacerbation but also eradicating the primary source of the exacerbation, there is a need for additional resources and information for the caregiver.
“It would therefore be desirable to develop an automated system to collect data regarding the physiological condition of a patient, as well as collect data from implanted devices, and to automate the process of analyzing the data available to the caregiver of a patient.”
Supplementing the background information on this patent, NewsRx reporters also obtained the inventors’ summary information for this patent: “The present invention generally relates to monitoring patients, and more specifically relates to systems and methods for identifying a trigger event to a patient health-related exacerbation and automatically identifying a patient disease.
“One aspect of the invention relates to a system that identifies a trigger event to a patient health-related exacerbation. The system includes at least one sensor configured to collect data related to the patient health-related exacerbation, an analyzer configured to validate the collected data, a patient interface device configured to receive patient inputs to at least one question, and an identifier device configured to receive the patient inputs and collected data and identify the trigger event. The system may also include an expert system configured to receive the patient inputs and the validated collected data and identify a primary patient disease, and a reporting device configured to generate reports related to the identified primary patient disease, patient inputs, and sensed patient conditions.
“Another aspect of the invention relates to a method of identifying an exacerbation trigger event in a patient having a chronic illness. The method includes collecting sensor data indicative of at least one patient physical condition, cross-correlating the collected sensor data to validate the collected data, collecting patient responses to an interactive questionnaire, and identifying the exacerbation trigger event based on the collected data and patient responses. The method may also include identifying a primary disease associated with the exacerbation trigger event using an expert system.
“A further aspect of the invention relates to a method of automatically identifying a primary patient disease. The method may include the steps of collecting sensor data indicative of at least one patient physical condition, cross-correlating the collected sensor data to validate the collected data, collecting patient responses to an interactive questionnaire, and identifying the primary patient disease using an expert system, the validated collected data, and the patient responses.”
For the URL and additional information on this patent, see: Brockway, Marina; Johnson, David; Goscha, Don; Kadhiresan, Veerichetty A.; Srivathsa, Muralidharan; Haeder, Lisa. Automatic Etiology Sequencing System and Method. U.S. Patent Number 8740789, filed March 3, 2005, and published online on June 3, 2014. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8740789.PN.&OS=PN/8740789RS=PN/8740789
Keywords for this news article include: Cardiology, Cardio Device, Heart Disease, Heart Failure, Medical Devices, Cardiac Pacemakers Inc., Cardiovascular Diseases.
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