Diagnosing and treating subacute cardiac dysfunction

• US 5,464,020 A
• Filed: 04/04/1994
• Issued: 11/07/1995
• Est. Priority Date: 03/25/1991
• Status: Expired due to Term

• Current Assignee: Albert M. Lerner
• Original Assignee: Albert M. Lerner
• Inventors: Lerner, Albert M.
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): SCHAETZLE, KENNEDY
• Application Number:
  US08/222,118
• Time in Patent Office: 582 Days
• Field of Search: 128/704, 128/706, 128/696, 128/702, 128/707
• US Class Current: 600/508
• CPC Class Codes: A61B 5/332 Portable devices specially adapted therefor
• CPC Class Codes: A61B 5/336 Magnetic recording apparatus
• CPC Class Codes: A61B 5/349 Detecting specific parameters of the electrocardiograph cycle
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 20/30 relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

A method for diagnosing subacute cardiac dysfunction is performed by electrocardiographically monitoring an ambulatory patient who has persistent unexplainable fatigue and determining the frequency when the T-wave of the ambulatory patient is not positive to determine that subacute myocarditis or a cardiomyopathy is present. This monitoring is preferably performed by a portable monitor and the data is magnetically stored so as to permit subsequent analysis. A treatment is prescribed, preferably restricting activity and refraining from the intake of alcohol as well as antiviral chemotherapy and immunomodulators, when there is an excessively high frequency of the T-wave not being positive. Recovery is determined by further electrocardiographic monitoring of the ambulatory patient and noting when the normally positive T-waves are present all, or at least almost all, of the time.

Claims

1. A method for diagnosing subacute cardiac dysfunction in a patient whose sedentary electrocardiogram ST segment and T-wave do not indicate cardiac dysfunction, the method comprising:

electrocardiographically monitoring to detect T-waves of an ambulatory patient who has persistent unexplainable fatigue;

determining the T-wave frequency when the T-wave of the ambulatory patient is not positive; and

providing a diagnosis of subacute cardiac dysfunction that is selected from the group consisting of subacute myocarditis and a subacute cardiomyopathy based on the determination of T-wave frequency.

2. A method for diagnosing subacute cardiac dysfunction as in claim 1 wherein a portable monitor is utilized to perform the electrocardiographic monitoring of the ambulatory patient.

3. A method for diagnosing subacute cardiac dysfunction as in claim 1 wherein the data from the electrocardiographic monitoring is magnetically stored.

4. A method for diagnosing subacute cardiac dysfunction as in claim 1 wherein the number of cycles when the T-wave is not positive during a given time period is utilized as the numerator of a ratio whose denominator is the total number of cycles during said given time period.

5. A method for diagnosing subacute cardiac dysfunction as in claim 1, 2, 3, or 4 wherein the frequency when the T-wave is not positive is determined for a time period when the patient'"'"'s pulse rate is below 100 cycles per minute such as during normal activity.

6. A method for diagnosing subacute cardiac dysfunction as in claim 1, 2, 3, or 4 wherein the frequency when the T-wave is not positive is determined for a time period when the patient'"'"'s pulse rate is between 100 and 120 cycles per minute such as during moderate tachycardia.

7. A method for diagnosing subacute cardiac dysfunction as in claim 1, 2, 3, or 4 wherein the frequency when the T-wave is not positive is determined for a time period when the patient'"'"'s pulse rate is above 120 cycles per minute such as during severe tachycardia.

8. A method for diagnosing subacute cardiac dysfunction as in claim 1, 2, 3, or 4 wherein the frequency when the T-wave is not positive is determined for a given time period regardless of the patient'"'"'s pulse rate.

9. A method for diagnosing subacute cardiac dysfunction in a patient whose sedentary electrocardiogram ST segment and T-wave do not indicate cardiac dysfunction, the method comprising:

utilizing a portable monitor to electrocardiographically monitor T-waves of an ambulatory patient who has persistent unexplainable fatigue;

magnetically storing the electrocardiographic data of the patient;

determining the T-wave frequency when the T-wave of the patient is not positive; and

providing a diagnosis of subacute cardiac dysfunction that is selected from the group consisting of subacute myocarditis and a cardiomyopathy based on the determination of T-wave frequency.

10. A method for diagnosing and treating subacute cardiac dysfunction in a patient whose sedentary electrocardiogram ST segment and T-wave do not indicate cardiac dysfunction, the method comprising:

electrocardiographically monitoring to detect T-waves of an ambulatory patient who has unexplainable fatigue;

determining the T-wave frequency when the T-wave of the ambulatory patient is not positive;

providing a diagnosis of subacute cardiac dysfunction that is selected from the group consisting of subacute myocarditis and a cardiomyopathy when there is an excessively high frequency of the T-wave not being positive; and

prescribing a treatment when subacute cardiac dysfunction is diagnosed.

11. A method for diagnosing and treating subacute cardiac dysfunction as in claim 10 wherein the treatment prescribed is selected from the group consisting of restricting activity, refraining from the intake of alcohol, antiviral chemotherapy and immunomodulators.

12. A method for diagnosing and treating subacute cardiac dysfunction as in claim 10 or 11 wherein recovery is monitored by performing further electrocardiographic monitoring of the treated ambulatory patient and determining the frequency when the T-wave is not positive.

13. A method for diagnosing and treating subacute cardiac dysfunction in a patient whose sedentary electrocardiogram ST segment and T-wave do not indicate cardiac dysfunction, the method comprising:

utilizing a portable monitor to electrocardiographically monitor T-waves of an ambulatory patient who has persistent unexplainable fatigue;

magnetically storing the electrocardiographic data of the patient;

determining the T-wave frequency when the T-wave of the ambulatory patient is not positive;

providing a diagnosis of subacute cardiac dysfunction that is selected from the group consisting of subacute myocarditis and a cardiomyopathy; and

prescribing a treatment that includes both restricting activity and refraining from the intake of alcohol when there is an excessively high frequency of the T-wave not being positive.

14. A method for diagnosing and treating subacute cardiac dysfunction as in claim 13 wherein additional treatment prescribed is selected from the group consisting of antiviral chemotherapy and immunomodulators.

15. A method for diagnosing and treating subacute cardiac dysfunction as in claim 13 or 14 wherein further electrocardiographic monitoring of the treated ambulatory patient is performed with the portable monitor to determine the frequency when the T-wave is not positive in order to determine when the patient has recovered.

16. A method for diagnosing subacute cardiac dysfunction in a patient whose sedentary electrocardiogram ST segment and T-wave do not indicate myocarditis, the method comprising:

electrocardiographically monitoring to detect-T-waves of an ambulatory patient who has persistent unexplainable fatigue;

determining the extent to which the T-waves of the ambulatory patient are negative; and

providing a diagnosis of subacute cardiac dysfunction that is selected from the group consisting of subacute myocarditis and cardiomyopathy based on the determination of the negative extent of the T-waves.

17. A method for diagnosing subacute cardiac dysfunction as in claim 16 wherein the extent to which the T-waves are negative is determined by totaling the integral sum of the negative area of the T-waves divided by the total heart beats for a given time.

18. A method for diagnosing subacute cardiac dysfunction as in claim 16 wherein the severity of the subacute cardiac dysfunction is measured by the extent of the negative value of the T-waves.