Koch K.L., Stern R.M. Handbook of Electrogastrography // Oxford University. – New York. – 2004. – 220 p.

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Авторы: Koch K.L. / Stern R.M.

Handbook of Electrogastrography

Kenneth L. Koch, Robert M. Stern


Contributors, xv

1. Brief History of Electrogastrography, 1
Robert M. Stern

2. Properties of Electrical Rhythmicity in the Stomach, 13
Kenton M. Sanders, Tamas Or dog, Sang Don Koh, Sean M. Ward
Properties of Gastric Electrical Slow Waves, 15
The Slow Wave Frequency Gradient, 17
Characteristics of Slow Wave Propagation, 19
Pacemaker Currents Generated by Interstitial Cells of Cajal, 20
Mechanism of Pacemaker Activity, 22
Regulation of Pacemaker Frequency, 24
Basis of Some Gastric Dysrhythmias, 27
Cautions for the Use of Electrogastrography to Evaluate Gastric Arrhythmias, 32
3. Physiological Basis of Electrogastrography, 37
Kenneth L. Koch

Gastric Pacesetter Potentials and Action Potentials, 37

Normal Electrogastrographic Patterns in Healthy Subjects, 45

Fasting Electrogastrographic Patterns, 45
Postprandial Electrogastrographic Patterns, 47
4. Recording the Electrogastrogram, 69
Robert M. Stern

Equipment, 70

Electrodes, 70
Recording Equipment, 70
Recording Procedure, 70

Electrode Placement, 70
Procedure, 73

How to Minimize and Identify Artifacts, 73

Movement of the Limbs and Body, 73
Talking, 74

Identifying Artifacts in the Electrogastrographic Signal, 74

Electrode and Other Electrical Failures, 74
Respiratory Artifacts, 74
Harmonics, 78

5. Analysis of the Electrogastrogram, 83 Robert M. Stern

Visual Analysis of the Electrogastrographic Signal, 83

Computer Analysis of the Electrogastrographic Signal, 84

Filters and the Electrogastrographic Signal, 87
Spectral Analysis of the Electrogastrographic Signal, 87
Running Spectral Analysis (RSA), 88
Specific Electrogastrographic Parameters, 96
6. Clinical Applications of Electrogastrography, 101
Kenneth L. Koch

An Approach to the Patient with Dyspepsia Symptoms, 102

Gastric Neuromuscular Dysfunction and Dyspepsia, 106
The Electrogastrogram and Water Load Test, 106

Treatment of Gastric Neuromuscular Disorders Based on

Pathophysiological Categories, 125

Clinical Applications of Electrogastrography in

Pediatrics and Obstetrics, 139

Applications of Electrogastrography in Research, 142

7. Tachygastrias, 149
Kenneth L. Koch

Pathophysiology of Gastric Dysrhythmias, 149

Origin of Tachygastrias, 151

Tachygastrias, 159

Tachygastrias (Unifocal), 160
Tachygastrias (Diffuse), 169
Tachygastrias (Probable), 175
Fictitious Tachygastrias, 178
8. Bradygastrias and Mixed Dysrhythmias, 185
Kenneth L. Koch

Origin of Bradygastrias, 185

Slow-Frequency Contractions of Antrum and Fundus, 185
Temperature of Intragastric Content, 186
Intragastric Volume, 189
Distention of Antrum, 189
Transection of the Gastric Corpus and Bradygastria, 193
Colonic and Small Intestinal Myoelectrical Activity, 193
Movements of the Body and Limbs of the Subject, 194 Bradygastrias, 194

Bradygastria (High Amplitude), 194

Bradygastria (Low Amplitude), 198
Mixed Gastric Dysrhythmias, 200
9. The Future and Electrogastrography, 213
Kenneth L. Koch and Robert M. Stern

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