Incomplete Right Bundle Branch Block

Case 24: A 76-Year-Old Man Seen for a Routine Assessment

Case 24: A 76-Year-Old Man Seen for a Routine Assessment History Diagnosis History An active 76-year-old man with no cardiac complaints is seen by his family physician for a routine assessment: Diagnosis Sinus bradycardia, 56/min Incomplete right bundle branch block (iRBBB) The ECG of this patient had been known to show incomplete right bundle branch …

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Case 13: A 72-Year-Old Man in the Cardiac Clinic

Case 13: A 72-Year-Old Man in the Cardiac Clinic History Diagnosis History A 72-year-old man in the cardiac clinic for reassessment for complaints of palpitation and fatigue: Diagnosis Atrial flutter with 3:1 AV conduction – Ventricular rate 90/min Incomplete right bundle branch block (iRBBB) (QRS  duration = 110 msec) Septal infarction, age undetermined ECG ID: …

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Case 35: A 39-Year-Old Man with Episodes of Paroxysmal Palpitation

Case 35: A 39-Year-Old Man with Episodes of Paroxysmal Palpitation History Diagnosis ECG 2 ECG 2 Diagnosis History A 39-year-old man is referred to the EP clinic because of occasional episodes of palpitation since his early twenties: Diagnosis Sinus rhythm Wolff-Parkinson-White   ECG 2 EP studies reveals a left lateral bypass tract that is successfully …

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Case 39: A 39-Year-Old Man with Progressive Exertional Dyspnea

Case 39: A 39-Year-Old Man with Progressive Exertional Dyspnea History Diagnosis History A 39-year-old man with past history of recurrent deep vein thrombosis is presenting with dyspnea on exertion that has been progressive during the last 3 weeks: Diagnosis Sinus rhythm, 95/min Possible left atrial enlargement Right axis deviation S1Q3 pattern Incomplete right bundle branch …

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Case 32: A 67-Year-Old Man in the Cardiac Ward

Case 32: A 67-Year-Old Man in the Cardiac Ward History Diagnosis History This 67-year-old man with a long history of coronary artery disease is admitted to the cardiac ward for investigation of frequent angina: Diagnosis Atrial fibrillation with frequent premature ventricular complexes (PVCs) Onset of ventricular tachycardia (rate 145/min) – One fusion complex. Ventricular rate …

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Case 40: A 50-Year-Old Man in the Cardiac Surgical Ward

Case 40: A 50-Year-Old Man in the Cardiac Surgical Ward History Diagnosis ECG 2 ECG 2 Diagnosis History A 50-year-old man is in the cardiac surgical ward two days after bypass surgery: Diagnosis Sinus tachycardia, 115/min, with complete heart block Junctional escape rhythm, with incomplete right bundle branch block (iRBBB) pattern and nonspecific ST abnormality …

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Case 71: A 78-Year-Old Woman in Congestive Heart Failure

Case 71: A 78-Year-Old Woman in Congestive Heart Failure History Diagnosis History This 78-year-old woman with a previous history of rheumatic fever and an associated heart murmur presents to the hospital in severe congestive heart failure: Diagnosis Atrial fibrillation – Ventricular rate 84/min Right axis deviation Incomplete right bundle branch block (iRBBB) Biventricular hypertrophy Right …

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Case 75: A 25-Year-Old Woman in the ICU

Case 75: A 25-Year-Old Woman in the ICU History Diagnosis History This 25-year-old woman with chronic respiratory failure and hypoventilation secondary to kyphoscoliosis and restrictive lung disease is admitted to the Intensive Care Unit with pulmonary aspergillosis: Diagnosis Sinus tachycardia 110/min Biatrial enlargement Right axis deviation Right ventricular hypertrophy Diffuse T wave abnormality The presence …

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