Thoracic Key

Fig. 15.1 ECG shows ST segment depression in I, aVL and V5-V6 leads What Are the Possible Causes of Chest Pain in This Patient? Acute coronary syndrome (unstable angina) Valvular…

Fig. 20.1 ECG shows atrial fibrillation with high ventricular rate ECG showed atrial fibrillation (AF) with high ventricular rate (130 beats per minute). There were diffuse and nonspecific repolarization alterations….

Fig. 28.1 Episode marked as VT/VF. The far-field electrogram (A) is present on the top, the near-field ventricular sense channel (V) is present in the middle tracing, and the marker…

Fig. 30.1 (a, b) Standard 12-lead ECG at rest. See the chapter for the description Regular RR interval with a heart rate of 75 bpm. P wave is apparently increased…

Fig. 29.1 (a–d) Image 1 ECG: sinus bradycardia, heart rate of 36 b/min, and negative T waves from V1 to V5 ECG showed marked sinus bradycardia (heart rate was 36…

Fig. 21.1 Clockwise-type typical atrial flutter with 2:1 ventricular response Conclusions: regular tachycardia, heart rate 150 bpm, incomplete right bundle branch block (100 ms), QRS axis +10°, apparent atrial rhythm…

Fig. 23.1 (a, b) A third-degree atrioventricular block with slow ventricular escape rhythm (35 bpm) is shown. Atrioventricular dissociation with atrial rate faster than the ventricular rate is clearly visible….

Fig. 9.1 ECG showing atrial fibrillation with rapid ventricular response The echocardiographic examination showed severely dilated left ventricle (LV end-diastolic volume of 280 ml, LV end-diastolic diameter 78 mm), impaired…

Fig. 27.1 Onset of polymorphic VT symptomatic for syncope, converted to sinus rhythm after cardiopulmonary resuscitation Medical History and Cardiovascular Risk Factors Ebstein anomaly and severe pulmonary stenosis; her family…

Fig. 11.1 12-lead ECG The initial EKG showed sinus rhythm at 58 bpm, normal atrioventricular conduction (PR interval 160 s), normal QRS duration (0.08 s), absent Q wave, and horizontal…