Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-06-13
1997-11-04
Jastrzab, Jeffrey R.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
128705, 12820024, 6048901, A61N 139, A61B 5046
Patent
active
056834241
ABSTRACT:
A method and apparatus for determining the metabolic state of the myocardium of a subject in ventricular fibrillation or asystole and/or for guiding therapeutic interventions. Electrocardiogram signals of the subject's heart are transformed to a frequency domain power spectrum, and at least one frequency parameter is monitored and processed to a value predictive of a clinically relevant cardiac arrest outcome. In the preferred embodiment, centroid frequency and/or peak power frequency of the power spectrum are monitored.
REFERENCES:
patent: 4296755 (1981-10-01), Judell
patent: 4680708 (1987-07-01), Ambos et al.
patent: 4924875 (1990-05-01), Chamoun
patent: 4928674 (1990-05-01), Halperin et al.
patent: 4974162 (1990-11-01), Siegel et al.
patent: 5077667 (1991-12-01), Brown et al.
patent: 5092341 (1992-03-01), Kelen
patent: 5423325 (1995-06-01), Burton
patent: 5423863 (1995-06-01), Felblinger et al.
patent: 5437285 (1995-08-01), Verrier et al.
Brown, Charles G., M.D. et al., "Physiologic Measurement of the Ventricular Fibrillation of ECG Signal: Estimating the Duration of Ventricular Fibrillation," Annals of Emergency Medicine, 22:1, Jan., 1993, pp. 70-74.
Brown, Charles G., M.D. et al., "Non-Invasive Monitoring During Ventricular Fibrillation," Applied Cardiopulmonary Pathophysiology, vol. 4, 1992, pp. 293-299.
Brown, Charles G., M.D. et al., "Median Frequency--A New Parameter for Predicting Defibrillation Success Rate," Annals of Emergency Medicine, 20:7, Jul., 1991, pp. 787-789.
Martin, Daniel R. et al., "Frequency Analysis of the Human and Swine Electrocardiogram During Ventricular Fibrillation," Resuscitation, vol. 22, 1991, pp. 85-91.
Dzwonczyk, Roger et al., "The Median Frequency of the ECG During Ventricular Fibrillation: Its Use in an Algorithm for Estimating the Duration of Cardiac Arrest," IEEE Transactions of Biomedical Engineering, vol. 37, No. 6, Jun., 1990, pp. 640-645.
Brown, Charles G., M.D., F.A.C.E.P. et al., "Estimating the Duration of Ventricular Fibrillation," Annals of Emergency Medicine, 18:11, Nov., 1989, pp. 1181-1185.
Dzwonczyk, Roger, PE et al., "Frequency Analysis of the Human ECG During Ventricular Fibrillation" IEEE, 1989, pp. 3, 4.
Dzwonczyk, Roger et al., "Frequency Analysis of the ECG During Ventricular Fibrillation," IEEE/Ninth Annual Conference of the Engineering in Medicine and Biology Society, 1987, pp. 0147-0148.
Brown, Charles G. et al., "Frequency Analysis of the Electrocardiogram in Human Beings During Ventricular Fibrillation," Annals of Emergency Medicine, 18:4, Apr., 1989, p. 440 (abstract).
Menegazzi J.J., Watanabe S., Klain M., Doctor A., "ECG Spectrum Analysis Predicts Return of Spontaneous Circulation Following Prolonged Ventricular Fibrillation," NAEMSP Abstracts, Jul.-Sep., 1993, p. S61.
Forster, F.K. et al., "Recognition of Ventricular Fibrillation, Other Rhythms and Noise in Patients Developing the Sudden Cardiac Death Syndrome," Conference: Computers in Cardiology, Ninth Meeting of Computers in Cardiology, 1982, pp. 245-248 (abstract only).
Nolle, F.M. et al., "Power Spectrum Analysis of Ventricular Fibrillation and Imitative Artifacts," Conference: Computers in Cardiology, 1981, pp. 209-212 (abstract only).
Herbschleb, J.N. et al., "Frequency Analysis of the ECG Before and During Ventricular Fibrillation," Conference: Computers in Cardiology, 1980, pp. 365-368 (abstract only).
Nygards, Mats-Erick et al., "Recognition of Ventricular Fibrillation Utilizing the Power Spectrum of the ECG," Conference: Computers in Cardiology, Oct., 1977, pp. 393-397 (abstract only).
Yakaitis, Ronald W., M.D. et al., "Influence of Time and Therapy on Ventricular Defibrillation in Dogs," Critical Care Medicine, vol. 8, No. 3, Mar., 1989, pp. 157-163.
Niemann, James T., M.D. et al., "Treatment of Prolonged Ventricular Fibrillation Immediate Countershock Versus High-Dose Epinephrine and CPR Preceding Countershock," Circulation, vol. 85, No. 1, Jan., 1992, pp. 281-287.
Ditchey, Roy V., M.D. et al., "Failure of Epinephrine to Improve the Balance Between Myocardial Oxygen Supply and Demand During Closed-Chest Resuscitation in Dogs," Circulation, vol. 78, No. 2, Aug., 1988, pp. 382-389.
Niemann, James T., M.D. et al., "Endocardial and Transcutaneous Cardiac Pacing, Calcium Chloride, and Epinephrine in Postcountershock Asystole and Bradycardias," Critical Care Medicine, vol. 13, No. 9, Sep., 1985, pp. 699-704.
Gaba, David M. et al., "Myocardial Damage Following Transthoracic Direct Current Countershock in Newborn Piglets," Pediatric Cardiology, vol. 2, 1982, pp. 281-288.
Hargarten, Kathleen M., M.D., F.A.C.E.P. et al., "Prehospital Experience With Defibrillation of Coarse Ventricular Fibrillation: A Ten-Year Review", Annals of Emergency Medicine, 19:2, Feb., 1990, pp. 157-162.
Martin, G. et al., "Relation Between Power Spectrum Time Course During Ventricular Fibrillation and Electromechanical Dissociation. Effects of Coronary Perfusion and Nifedipine," European Heart Journal, vol. 7, 1986, pp. 560-569.
Martin, G. et al., "Effects of Calcium Antagonists on Time Course of ECG Power Spectrum During Ventricular Fibrillation," Computers in Cardiology, IEEE Computer Society, 1983, pp. 213-216.
Martin, G. et al., "Differences in the Time Course of the Power Spectrum During Ventricular Fibrillation," The Applications of Computers in Cardiology: State of the Art & New Perspectives, 1984, pp. 179-183.
Kuo, S., S.M. et al., "Computer Detection of Ventricular Fibrillation," Conference: Computers in Cardiology, Sep., 1978, pp. 347, 348 (abstract only).
Brown Charles G.
Dzwonczyk Roger R.
Jastrzab Jeffrey R.
The Ohio State University Research Foundation
LandOfFree
Non-invasive monitoring and treatment of subjects in cardiac arr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-invasive monitoring and treatment of subjects in cardiac arr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-invasive monitoring and treatment of subjects in cardiac arr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1829106