Analysis of Longtime ECG by Means of Microcomputer Including Recognition of P-waves and ST-T-segment

Kapitel in diesem Buch

1. Frontmatter 1
2. Preface 4
3. In memoriam VILÉM LAUFBERGER 5
4. CONTENTS 7
5. PLENARY LECTURES
6. One Century Electrocardiography In man 21
7. My first 25 years in electrocardiology 27
8. Gating properties of cardiac sodium channels 33
9. Computer Modelling in Cardiac Electrophysiologic 41
10. Body Surface Potential Mapping in Children 45
11. Features of ventricular septal activation in the cardiac electric 51
12. Mechanisms of antiarrhythmics 55
13. Clinical Application of Magnetocardiographic Measurements 57
14. Comparison of mathematical and geometrical approach in spacecraft and in our triaxicardiometric (Polarcardiographic) programs 63
15. YOUNG INVESTIGATORS AWARD
16. Transcavitary Conduction and the Mean Frontal Q R S Axis 71
17. localization of accessory atrioventricular connections and origin of ventricular tachycardia in patients with malignant tachyarrhythmias by electrocardiographic, electrophysiologic and scintigraphic techniques 75
18. Correlation between biomagnetic localization of primary cardiac sources obtained by different models and radiographic-echocardiographic images 81
19. Functional significance of a negative U wave in the exercise electrocardiogram 85
20. COMPONENTS OF THE HEART RATE POWER SPECTRUM DURING INDIVIDUAL SLEEP STAGES AND THEIR ASSOCIATION TO-CENTRAL HEMODYNAMICS 89
21. Nondipolarity Estimation - an Additional Diagnostic Information in Myocardial Infarction ? 93
22. FUNDAMENTALS OF CARDIAC EXITATION
23. Transient outward current in mammalian ventricular fibres and its role in the control of action potential configuration 99
24. Bioelectric activity of frog atrium cells with non-typical impulse activity 103
25. Antiarrhythmic effects of Ca channel blockers on canine Purkinje fibers 107
26. Intercellular interaction In frog heart 111
27. Technical aspects of intercellular electrotonic interaction investigation in the myocardium 115
28. Extracellular K⁺and Ca ²⁺ actlvities (a _K+ ⁰,a⁰_Ca2+ ) at the region of suction electrode placed on the ventral wall of frog ventricular epicardium during the development of monophasic action potential (MAP) caused by the negative pressure 119
29. The histology of the atrioventricular nodal cells in the human heart 123
30. Structural and functional organization of atrioventricular conducting system in the avian heart 127
31. MODELLING OF HEART ACTIVITY
32. Modelling of isopotential and field strength distribution in the human thorax 133
33. Theoretical analysis of magnetic fields resulting from heart activity 137
34. Computer Simulation of the Electrical and Magnetical Heart Field 141
35. DECARTO: A new concept for analyzing and presenting orthogonal electrocardiographic signals 145
36. Computer Simulation of Cardiac Excitation in the Hypertrophic Heart 149
37. A Study of the Diagnostic Informativity of BSPM Based on a Multipolar Cardiac Source Model 153
38. The usefulness of multipoles in differentiation of human cardiac electric fields 157
39. A Computer Model of Cardiac Rhythm and Heart - Pacemaker Interface 161
40. Higher Degree Multidipolar Components Sum on the VCG Spherical Surface 165
41. Modelling and simulation of the ventricular excitation and repolarization in relation to the heart mechanics 169
42. Dynamic Anisotropy of Atrioventricular Nodal Conduction? Computer Modelling Experiments 175
43. Instability of Multipole Model of Cardiogenerator Caused by Measurement Errors 179
44. BODY SURFACE MAPPING-THEORY AND METHODS
45. Body Surface Isopotential Maps Properties after the Transfer Coefficient Unification 185
46. Electromagnetic field of heart contraction kinetics. Electromagnetic kin etocardiography: theory and clinical application 189
47. Data acquisition for ECG-mapping 195
48. System for clinical mapping and modelling the heart generator 199
49. How to image the differences between CEF-norm and actual condition of cardiac electric field using threedimensional isopotential maps without colour graphics ? 203
50. A BSPM Infrastructure: Product Description and Applications 209
51. Spread of the atrial activation on the chest surface in healthy girls 213
52. Application of a bedside Microcomputer System far ECG Mapping after Myocardial Infarction 217
53. The Transfer Coefficient Unification Method for the Body Surface Potential Distribution Processing 221
54. Automatic QRS Onset Detection of BSPM by Spatial and Temporal Approach 225
55. Experimental Investigation of Cardiac Electric Field 229
56. BODY SURFACE MAPPING-CLINICAL APPLICATION
57. An analysis of multiple ECG leads in the patients with posterior myocardial infarction 235
58. RECOGNITION OF MYOCARDIAL ISCHEMIC AREAS BY COMPUTERIZED STRESS PRECORDIAL MAPPING 239
59. Electrocardiographic isopotential exercise and oesophageal stimulation maps in the diagnosis of myocardial ischaemia 243
60. Usefulness of the QRST integral maps to detact vulnerability to malignant arrhythmias in patients with old myocardial infarction. 247
61. Nondipolarity of QRST area map and the ventricular arrhythmias following myocardial infarction 251
62. Characteristic Features of the Cardioelectric Fields Mapped in Patients with Essential and Renal Hypertension 255
63. USE OF COMPUTER SYSTEMS TO DEVELOP NOVEL APPROACHES TO ELECTROCARDIOGRAPHIC ANALYSIS 259
64. Specific features of the integral cardiac topograms in the patients with myocarditis 267
65. Estimation of the dipolar content of total body surface potential distribution in WPW syndrome 271
66. MAGNETOCARDIOGRAPHY
67. High resolution magnetocardiography 277
68. The Influence Of Inhomogeneities On ECG And MCG Mapping 281
69. On basic models for magnetocardiographic studies 285
70. The DC SQUID SYSTEM 3 - a new tool for investigations of magnetic activities of the heart 289
71. Electromagnetic kinetocardiography. Measurement technique, hardware and software 293
72. VECTORCARDIOGRAPHY
73. THE RELATIONSHIP BETWEEN THE 12-LEAD STANDARD ECG AND THE XYZ VECTOR LEADS 301
74. Planarity of the spatial QRS loop. Comparative analysis in normals, infarcts, ventricular hypertrophies and intraventricular conduction defects 309
75. New routine VCG-analysis with high diagnostic power in LVH and RVH 313
76. Vectorcardiographic identification of anteroapical infarction 317
77. Normal areas of Frank VCG instantaneous vector end-points - comparison with the VA program evaluation 321
78. Shape of the QRS loop and the stability of transformation coefficients between two different VCG lead systems 325
79. VCG study of the S-T segment changes in pts with MI treated or not with i.v. Streptoki nase 329
80. DEVELOPMENTAL ELECTROCARDIOLOGY
81. Experimental Simulation of the Postnatal Decrease of Pulmonary Vascular Resistance: Effect on the ECG 335
82. Conception and results of neonatal electrocardiographic screening 339
83. Some aspects of the body surface mapping and echocardiographic findings in healthy children 343
84. FRANK ECG of adolescents 347
85. Prevalence and clinical relevance of different physiological variants of right ventricular conduction in infancy, childhood and adolescence 351
86. May primary septal hypertrophic cardiomyopathy be responsible for sudden infant death syndrome ? Relevancy of electrovectorcardiographie investigation. 357
87. Electrocardiography in hypertrophic cardiomyopathy 361
88. ECG of Postnatally Growing Guinea Pigs with Carbon Monoxide Induced Cardiomegaly 365
89. Some quantitative parameters of the QRS complex obtained from body surface potential maps of normal children 369
90. Swimming Exercise in Postnatally Growing Hats: Influence on Various ECG Parameters 373
91. Experimental body surfact isopotential mapping in healthy, swimming and sympathectomized young rats 377
92. EXERCISE ELECTROCARDIOLOGY
93. Prognostic value of different exercise-ECG-signs, ten years follow-up. The Erfurt Intervention Study 383
94. Improved Diagnosis of Cardiac Dysrhythmias During Stress-Tests Using Bipolar Oesophageal ECG 387
95. The importance of- BOG to determine the autonomic nervous control of cardiac action during thermal stress 391
96. Electrocardiographic Changes in Men Under Hypokinesia and Physical Exercise 395
97. FACILITIES OF EGG TELEMETRY IN PHYSICAL MEDICINE 399
98. Modified ECG Functional Teat for Prognosis of Rehabilitation Effect in Patients after Myocardial Infarction 405
99. Comparison of exercise precordial mapping and exercise thallium scintigraphy in the diagnosis of coronary artery disease 409
100. Frequency analysis of ECG during bycicle exercise in patients with ischaemic heart disease 413
101. Significance of the ascending type of ST-segment depression during diagnostic exercise ECG In patients with ischaemic heart disease 417
102. DIAGNOSTIC OF MYOCARDIAL INFARCTION
103. Effect of infarct location on the incidence of silent Myocardial ischemia in patients with transmural Myocardial infarction 423
104. Discriminant body surface potential map patterns in anterior and inferior myocardial infarction 429
105. Correlation g>f myocardial infarction development character and disturbances of coronary blood flow 433
106. Contribution of the on-line computer ECG mapping to the rapid diagnostics of myocardial Infarction size and Localization 437
107. VCG semi-quantitative evaluation of infarcted area in the acute phase of MI and after 6 months of follow-up: clinical and prognostic correlations 441
108. ECG Patterns in Subjects with Self-Reported Old Myocardial Infarctions Results from a Cross-Sectional Population Study 445
109. Repolarization waye abnormalities and symptomatic coronary artery disease 449
110. Transtelephonic 12-lead ECG service centers in the Netherlands. 453
111. ECG criteria and thrombolysis in acute myocardial infarction 457
112. The Quantitation of Regional Ischemia Criteria from a Fine Grid Computer Simulation of QRS-T 461
113. Comparison of vectorcardiographs,electrocardiographic,ventriculographic, echocardiographic and coronarographic findings in patients with stenocardia 465
114. Diagnostic possibilities of electroc ardiotopography and mathematical model in myocardial infarction 469
115. Electrocardiotopography value in myocardial infarction and stenocardia 473
116. ECG changes and load tolerance in patients after myocardial infarction 477
117. RHYTHM AND RHYTHM DISTURBANCE
118. Circadian variation of the sinus arrhythmia 483
119. On the characteristic frequency of sinus arrhythmia 487
120. HYPERTROPHIC CARDIOMYOPATHY AND MYOCARDIAL INFARCTION: A CHRONOBIOLOGICAL STUDY OF HEART RATE AND PREMATURE BEATS 491
121. Measurement of periodic heart rate variability for investigation of the vegetative level during the induction of anaesthesia 495
122. The influence of beta-adrenergic blockers propranolol and talinolol on ECG in young men 499
123. "Warming-up" Phenomenon Differential Diagnosis and Quantitative Study 503
124. The comparative study of 24-hour ECG monitoring in patients with different forms of angina pectoris and myocardial infarction 507
125. Behavior of the QT -interval at multiple praecordial ECG-leads in healthy persons and patients with different heart diseases 511
126. Bundle branch reentrant tachycardia treated by transvenous catheter ablation of the right bundle branch 515
127. Clinical Studies on Post-Tachycardia Syndrome 519
128. Pacemaker Inverse Problem Computer Supported Diagnosis of Electrocardiograms of Paced Patients 523
129. Optimal setting of programmable cardiac pacemakers by means of radionuclide ventriculography 527
130. Differentiation of atrial rhythms by differentially amplified ECG 533
131. Controlled antiarrhythmic therapy -for recurrent supraventricular arrhythmias by means of repeated transesophageal pacing 537
132. Effects of cardiac glycosides on electrical repolarization during sinusrhythm and atrials pacing in normals and in patients with coronary artery diseases 541
133. Are the alcoholic arrhythmias related to alcoholic cardiomypaty? 545
134. Serum potassium level in relation to malignant arrhythmias in acute myocardial infarction 549
135. Prognosis in ventricular tachyarrhythmia patients with coronary artery disease 553
136. The control of heart rhythm in a tilt table test 557
137. The Electrophysiologic Criteria for the Selection of Antiarrhythmic Therapy 561
138. Cardiac rhythm and haemodynamics disturbances in patients with sick sinus syndrome and VTI pacemakers implanted 565
139. Analysis of Longtime ECG by Means of Microcomputer Including Recognition of P-waves and ST-T-segment 569
140. Use of Microcardioanalyzer for Individualized Drug Selection in Cardiology 573
141. ASSESSMENT OF THE CARDIAC FUNCTIONAL STATUS -BASH) ON LONG-TERM RHYTHM3GRAM RECORDING DURING SLEEP 577
142. Autonomic nervous system control of heart rata in juvenile hypertension 581
143. Contribution of ambulatory electrocardiographic monitoring for the diagnosis of patients with syncopa 585
144. ECG AND CARDIAC MECHANICS CONDUCTION PROBLEMS
145. Correlations between SCG and echographical changes in 345 cases of hypertrophic cardiomyopathy 591
146. C.CARP 595
147. ST elevation during PTCA: role of collaterals in sudden coronary occlusion 599
148. Complete or Incomplete right bundle branch block after coronary artery bypass surgery 603
149. New aspects of classifying intraventricular conduction disturbances 607
150. Influence of quinidine versus procainamide on the QT interval 611
151. S-A. Blook, Sinus Parasystole, S-A Dissociation Semantics of Terms 615
152. The differentiation of incomplete right bundle branch block /inc.RBBB/ and right ventricular strain /RVS/ by the spatial angular velocity 619
153. HIS-ECG LATE POTENTIALS
154. Late ventricular potentials and their representation on the Instant topograms 625
155. R.Z*AmiroY 629
156. Frequency and significancy of ventricular late potentials in patients with myocardial infarction with and without fibrinolysis 633
157. Intracardiac electrophysiologic testing in the postmyocardial infarction period 639
158. Multiple malformations of the conduction system of the heart in patients with paroxysmal supraventricular tachycardias 643
159. The first derivative of the electrocardiogram 647
160. Reliability of noninvasive His bundle recordings 651
161. Role of AV system electrophysiologic changes in the pathogenesis of paroxysmal atrial fibrillation 655
162. Is the HV interval dependent on the recording site of His bundle electrogram? 659
163. System for detection of micropotentiels 663
164. The Clinical Evaluation of the Late Potentials in Patients with Ventricular Arrhythmias 667
165. Escape pacemaker characteristics following catheter-induced ablation of the atrioventricular junction 671
166. Registration of cardiac micropotentiale from body surface - a possibility to diagnose myocarditide 675
167. AUTHORS INDEX 681