Chest Pain Physiology Tachycardia 
Dr. Smith's ECG Blog
FEBRUARY 6, 2023
Sent by anonymous, written by Pendell Meyers A man in his 60s presented with acute chest pain with diaphoresis. The Importance of the History: As noted above — the onset of chest pain in today's case was acute. He had received aspirin and nitroglycerin by EMS, with some improvement. His vitals were within normal limits.
Dr. Smith's ECG Blog
JANUARY 9, 2024
She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. She presented to the emergency department after a couple of days of chest discomfort. Answer : The ECG above shows a regular wide complex tachycardia. Cardiac output (CO) was being maintained by the tachycardia.
Dr. Smith's ECG Blog
JANUARY 23, 2024
There was no chest pain. Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. The physiologic reason for this — is thought to be the result of momentarily increased circulation from mechanical contraction arising from the "sandwiched in" QRS complex.
Dr. Smith's ECG Blog
OCTOBER 10, 2022
Written by Pendell Meyers and Peter Brooks MD A man in his 30s with no known past medical history was reported to suddenly experience chest pain and shortness of breath at home in front of his family. Chest pain, SOB, Precordial T-wave inversions, and positive troponin. What is the Diagnosis? Now another, with ultrasound.
Dr. Smith's ECG Blog
MARCH 12, 2018
The findings include sinus tachycardia, characteristic QRS morphology most diagnostic in V3 with a small R wave followed by a very large S wave with a convex upward ST segment morphology, ST segment strain morphology in the inferior and anterior leads leading to deep symmetric T-wave inversion. What is the Diagnosis?
Dr. Smith's ECG Blog
FEBRUARY 28, 2020
Tachycardia (or nearly) 2. And some similar ECGs from Pulmonary Embolism: A young woman with altered mental status and hypotension An elderly woman transferred to you for chest pain, shortness of breath, and positive troponin - does she need the cath lab now? Tachycardia, = 1.8. Poor R-wave progression 4.
Dr. Smith's ECG Blog
JULY 21, 2019
They were recorded 12 minutes apart: "Hey Steve, 30-something with one week of chest pain, mostly right-sided, better with sitting up.": I learned more about the history: 30-something African American with 5-7days of sharp R-sided shoulder/scapula/chest discomfort, presented with sinus tachycardia. What do you think?
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