Method for predicting coronary heart disease

• US 5,396,886 A
• Filed: 07/01/1993
• Issued: 03/14/1995
• Est. Priority Date: 10/02/1992
• Status: Expired due to Term

• Current Assignee: E R Squibb & Sons Incorporated
• Original Assignee: Bristol-Myers Squibb Company
• Inventors: Cuypers, Dirk
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): GILBERT, SAMUEL G
• Application Number:
  US08/084,105
• Time in Patent Office: 621 Days
• Field of Search: 128/630, 128/668, 128/670, 128/671, 128/695, 128/897, 128/898, 283/117, 283/900
• US Class Current: 600/301
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: G09B 23/28 for medicine
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

A device or system is provided for calculating and visualising the risk for developing coronary heart disease which is in the form of a cardiovascular risk diagram which includes a series of cardiovascular risk scales projected on cardiovascular risk areas (for example, delineated by different colours) each scale representing a different cardiovascular risk factor. Data for each cardiovascular risk is recorded on its appropriate risk scale, and data points-on adjacent risk scales are connected to form enclosed area superimposed over the risk areas. The resulting enclosed area is visually or otherwise compared to the total area of all cardiovascular risk areas, to determine a score of cardiovascular risk.

Claims

1. A method for calculating and visualising risk of developing coronary heart disease, which comprises providing a diagram which includes a series of cardiovascular risk areas delineating low to high risk areas, and a series of cardiovascular risk scales for various cardiovascular risk factors delineating low to high risk, superimposed over said cardiovascular risk areas;

determining a numerical value for each cardiovascular risk factor of a patient, represented on the cardiovascular risk scales;

recording such numerical value on an appropriate cardiovascular risk scale as a data point;

connecting data points on adjacent cardiovascular risk scales to form an enclosed area of a patient superimposed on the cardiovascular risk areas, comparing the enclosed area superimposed on the cardiovascular risk areas against total area of the cardiovascular risk areas to determine a score of cardiovascular risk.

2. The method as defined in claim 1 including the step of providing in the diagram a series of cardiovascular risk areas formed of a series of concentric cardiovascular risk areas.

3. The method as defined in claim 2 including the step of comparing the enclosed area of the patient superimposed on the cardiovascular risk areas against an enclosed area of the total concentric cardiovascular risk areas to obtain a score of cardiovascular risk.

4. The method as defined in claim 3 including the step of correlating the cardiovascular risk area to Framingham risk for 10 year using period:

For Males

P=0.4823-0.5769 (cardiovascular risk area)

For Females

P=0.3623-0.5932 (cardiovascular risk area).

5. The method as defined in claim 2 including the step of delineating the concentric cardiovascular risk areas by different shades or colors.

6. The method as defined in claim 1 including the step of determining cardiovascular risk factors which include one or more of age, weight, blood pressure (systolic and diastolic), lipid parameters including total cholesterol, triglycerides, low density lipoproteins, high density lipoproteins, glycemic parameters and smoking habits.