Left Bundle Branch Block

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Case 42: A 68-Year-Old Woman in Congestive Heart Failure

Case 42: A 68-Year-Old Woman in Congestive Heart Failure History Diagnosis ECG 2 ECG 2 Diagnosis History This 68-year-old woman with non-ischemic cardiomyopathy is in hospital with severe congestive heart failure, despite optimal drug therapy: Diagnosis Sinus rhythm, 70/min Left bundle branch block QRS duration 160 msec ECG 2 Echocardiography demonstrated a severely impaired ejection …

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Case 44: A 73-Year-Old Man Presenting for Follow-Up

Case 44: A 73-Year-Old Man Presenting for Follow-Up History Diagnosis ECG 2 ECG 2 Diagnosis Diagram History This 73-year-old man with known dilated cardiomyopathy is in the cardiac clinic for a routine reassessment: Diagnosis Suspect lead placement error: left arm-right leg lead reversal Sinus rhythm 60/min, with one premature atrial complex Possible non-specific intraventricular block …

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Case 51: A 73-Year-Old Man with Ischemic Cardiomyopathy

Case 51: A 73-Year-Old Man with Ischemic Cardiomyopathy History Diagnosis History This 73-year-old man with a long history of coronary artery disease and severe left ventricular dysfunction is in the cardiac clinic for a follow-up assessment: Diagnosis Sinus bradycardia, 53/min Left atrial enlargement Left axis deviation Left bundle branch block When we review this ECG, …

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Case 64: A 58-Year-Old Man with Severe Weakness

Case 64: A 58-Year-Old Man with Severe Weakness History Diagnosis ECG 2 ECG 2 Diagnosis History This 58-year-old hypertensive man with known dilated cardiomyopathy and severe left ventricular dysfunction presents to the emergency department with a two day history of weakness. His medications include digoxin, furosemide, spironolactone, and KCl 20 mEq bid:   Diagnosis No …

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Case 103: A 78-Year-Old Woman in the Endocrinology Clinic

Case 103: A 78-Year-Old Woman in the Endocrinology Clinic History Diagnosis ECG 2 ECG 2 Diagnosis History This 78-year-old woman with a longstanding history of poorly controlled hypertension, type 2 diabetes, and left ventricular dysfunction, presents to the endocrinology clinic for follow-up, and a routine ECG is obtained: Diagnosis  Sinus tachycardia, 105/min with occasional premature …

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