《心电图基础》课件.pptVIP

* . * . * . 心电图讨论 * . 记住①~⑦ ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . * . * . * . * . * . * . * . * . * . The ectopic atrial rate is 150 bpm. Some of the ectopic P waves are easily seen and indicated by the arrows. Other P waves are burried in the T waves and not so easily identified. Atrial tachycardia with AV block is often a sign of digitalis intoxication. 3:2 and 2:1 AV block is seen in this example. * . * . * . * . * . * . * . * . * . * . * . * . ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . ①心率 ②节律 ③间期 ④电轴 ⑤肥大 ⑥梗死 ⑦临床相关性 * . * . * . * . * . * . * . * . * . * . * . NORMAL TRACING Normal ECG TECHNICAL PROBLEM Lead misplaced Artifact SINUS RHYTHMS/ARRHYTHMIAS Sinus rhythm (50-90 bpm) Sinus tachycardia (90 bpm) Sinus bradycardia (50 bpm) Sinus Arrhythmia Sinus arrest or pause Sino-atrial exit block * . OTHER SV ARRHYTHMIAS PACs (nonconducted) PACs (conducted normally) PACs (conducted with aberration) Ectopic atrial rhythm or tachycardia (unifocal) Multifocal atrial rhythm or tachycardia Atrial fibrillation Atrial flutter Junctional prematures Junctional escapes or rhythms Accelerated Junctional rhythms Junctional tachycardia Paroxysmal supraventricular tachycardia * . VENTRICULAR ARRHYTHMIAS PVCs Ventricular escapes or rhythm Accelerated ventricular rhythm Ventricular tachycardia (uniform) Ventricular tachycardia (polymorphous or torsades) Ventricular fibrillation * . AV CONDUCTION 1st degree AV block Type I 2nd degree AV block (Wenckebach) Type II 2nd degree AV block (Mobitz) AV block, advanced (high grade) 3rd degree AV block (junctional escape rhythm) 3rd degree AV block (ventricular escape rhythm) AV dissociation (default) AV dissociation (usurpation) AV dissociation (AV block) * . INTRAVENTRICULAR CONDUCTION Complete LBBB, fixed or i