Rhythm Interpretation
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2025 In-Training Exam Preparation (Part I/III)
It’s safe to assume that board exams will test your ability to diagnose and manage wide complex tachyarrhythmias. Here is a challenging wide complex rhythm in a patient with palpitations…
T Wave Clues: Uncovering Concealed Conduction Blocks and Arrhythmias
A 58-year-old man presents to the emergency department after an episode of syncope. The following ECG is obtained on arrival and interpreted as “sinus bradycardia”:
2024 UMMC Cases (Part III)
A 67-year-old man arrives at the emergency department with palpitations. He is noted to be tachycardic at triage and the following ECG is obtained and interpreted as “sinus tachycardia”:
2024 UMMC Cases (Part I)
A 69-year-old man arrives at the emergency department with shortness of breath and profuse sweating. The ECG obtained below shows sinus tachycardia at a rate of ~ 130 bpm with…
When One Lead Stands Alone: Deciphering Bizarre ECG Abnormalities
A 67-year-old woman with PMHx of HTN, DM, and ESRD presents to the emergency department drowsy and non-cooperative. Her blood sugar is elevated, pH 7.23, and there is concern for…
How the Lewis Lead Can Improve Tachyarrhythmia Diagnosis
A 68-year-old woman presents to the emergency department with palpitations and tachycardia. The following ECG is obtained:
The Approach to Uncovering Hidden STEMI
A 92-year-old man presents to the emergency department with acute chest pain and diaphoresis. The following ECG is obtained:
Case Potpourri: Avoiding AFib Misdiagnosis, Recognizing Mobitz, and Managing Polymorphic V-Tach
A 50-year-old man is brought to the emergency department after successful resuscitation from a witnessed cardiac arrest. EMS was initially called to the scene for chest pain. While on scene,…
2024 EMS Cases Part IV
A 60-year-old man is being transported by EMS to the emergency department for acute chest pain. The following ECG is transmitted prior to arrival as a “CODE STEMI” and brought…
Distinction Between AV Dissociation and Complete Heart Block
A 54-year-old man presents to the emergency department with chest pain. The following ECG is obtained:
Key Points to Note About Complete Heart Block
A 70-year-old woman presents to the emergency department with lightheadedness and dizziness that is worse with standing. The following ECG is obtained:
Key Points to Note About Mobitz I & Mobitz II
A 49-year-old man presents to the emergency department after an episode of syncope. The following ECG is obtained:
Subtle ECG Changes and Diagnostic Challenges
A 70-year-old male presents to the emergency department with acute chest pain that sounds ischemic in nature. The following baseline ECG, arrival ECG, and repeat ECGs are obtained:
2024 ECG Competition Answers (Part 2/2)
Instructions from Dr. Mattu: In some of the following questions, I’ll ask you for a FULL ECG interpretation/diagnosis. Here’s what I am asking for: SAMPLE QUESTION: A 58 yo M…
2024 ECG Competition Answers (Part 1/2)
Instructions from Dr. Mattu: In some of the following questions, I’ll ask you for a FULL ECG interpretation/diagnosis. Here’s what I am asking for: SAMPLE QUESTION: A 58 yo M…
How to avoid misdiagnosis of irregular rhythms
A 80-year-old woman is referred to the emergency department for suspected rapid atrial fibrillation. The following ECG is obtained on arrival:
Unraveling WPW Syndrome: Challenging Cases and Nuances of Treatment
A 15-year-old male with a history of asthma presents with palpitations while playing football. On arrival, he is found to have a narrow complex regular tachycardia most consistent with SVT….
Wolff-Parkinson-White (WPW) Syndrome with Atrial Fibrillation (Afib)
A 53-year-old man presents to the emergency department with palpitations and lightheadedness. On arrival, he is found to have a wide complex tachycardia and the following ECGs is obtained:
Wolff-Parkinson-White (WPW) Syndrome with Supraventricular Tachycardia (SVT)
A 24-year-old man with past medical history of WPW syndrome s/p ablation presents to the emergency department with palpitations. On arrival, he is found to have a wide complex tachycardia…
Post cardioversion ECG of SVT in patient with palpitations and near syncope
A 29-year-old woman presents to the emergency department with an episode of palpitations and near syncope. She reports several similar episodes in the past that were brief in duration and…
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