Bradycardia Stenosis Tachycardia 
Dr. Smith's ECG Blog
JUNE 27, 2024
EMS reports intermittent sinus tachycardia and bradycardia secondary to some type of heart block during transport. It is hard to make out P waves but you can see them best in V2, and notches in the T waves in other leads - this is a sinus tachycardia with a very long PR interval indicating first degree block.
All About Cardiovascular System and Disorders
MARCH 23, 2024
Sometimes, head up tilt test, also known in short as HUTT, is also done for the evaluation of postural orthostatic tachycardia syndrome, POTS, a condition in which there is tachycardia on standing up, without a fall in blood pressure. Second is cardioinhibitory response, in which there is bradycardia, but no hypotension.
Dr. Smith's ECG Blog
APRIL 15, 2019
Here was his initial ED ECG: There is sinus tachycardia at a rate of about 140 There is profound ST Elevation across all precordial leads, as well as I and aVL. I said I think there is a fixed stenosis in the LAD and the tachycardia and stress caused a type 2 STEMI.
Dr. Smith's ECG Blog
OCTOBER 15, 2024
Angiography revealed a 30% nonobstructive stenosis of the mid LAD. He had multiple episodes of bradycardia and nonsustained ventricular tachycardia. There was a 70% culprit stenosis of the first obtuse marginal branch in a right dominant system. Patient 1 remained in the hospital overnight.
Dr. Smith's ECG Blog
MARCH 2, 2019
found that such ECG findings only represented left main ACS in 14% of such ECGs: Only 23% of patients with the aVR STE pattern had any LM disease (fewer if defined as 50% stenosis). In my experience, Ive seen U waves not only with low K+/low Mg++ but also in patients with bradycardia, LVH, and sometimes in normal subjects.
Dr. Smith's ECG Blog
OCTOBER 7, 2019
Both of these features make inferior + RV MI by far the most likely ( Pseudoanteroseptal MI is another name for this ) There is also sinus bradycardia and t he patient is in shock with hypotension. A narrow complex bradycardia without any P-waves is also likely to respond to atropine, as it may be a junctional rhythm.
Dr. Smith's ECG Blog
JULY 21, 2024
Angiography : LMCA — 90-99% osteal stenosis. LCx — 50-69% stenosis of the 1st marginal branch; with 100% distal LCx occlusion. This progressed to electrical storm , with incessant PolyMorphic Ventricular Tachycardia ( PMVT ) and recurrent episodes of Ventricular Fibrillation ( VFib ). The image shows the impella device in place.
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