Ischemia Pacemaker Tachycardia 
Dr. Smith's ECG Blog
JANUARY 9, 2024
She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. Are you confident there is no ischemia? Answer : The ECG above shows a regular wide complex tachycardia. Said differently, the ECG shows a rather slow ventricular tachycardia with a 2:1 VA conduction. Is this: 1.
Dr. Smith's ECG Blog
JANUARY 2, 2025
Place temporary pacemaker 3. It should be kept in mind that on occasions, beta-one agonist can result in increased ventricular ectopy e.g., in severe myocardial ischemia (by increasing myocardial demand), or sometimes with congenital long-QT syndrome. Even with tachycardia and a paced QRS duration of ~0.16
Dr. Smith's ECG Blog
OCTOBER 23, 2023
An Initial ECG was performed: Initial ECG: Sinus tachycardia with prolonged QT interval (QTc of 534 ms by Bazett). She was admitted to the ICU where subsequent ECGs were performed: ECG at 12 hours QTc prolongation, resolution of T wave alternans ECG at 24 hours Sinus tachycardia with normalized QTc interval. No ischemic ST changes.
Dr. Smith's ECG Blog
JANUARY 1, 2024
While the initial impression might not immediately suggest ventricular tachycardia (VT), a closer examination raises suspicion. Again, see Ken's discussion below) Discussion continued The absence of pace spikes suggests this is not a pacemaker/ICD-related rhythm in this patient with an ICD. What is the rhythm? Smith : Are they P-waves?
Dr. Smith's ECG Blog
JULY 5, 2018
We admitted him for probable EP study and possible pacemaker. He underwent pacemaker placement and is doing fine. SSS is by far the most common reason for permanent pacemaker placement. The indication for pacemaker placement with SSS is symptomatic bradycardia. Hyperkalemia might do this, but the K was normal.
Dr. Smith's ECG Blog
APRIL 29, 2020
Therefore, she underwent temporary pacemaker placement and overdrive pacing at a rate of 90 bpm to keep the heart rate up in order to prevent these PVCs triggering ventricular arrhythmia. Instead, antiarrhythmic drugs such as amiodarone or ß-blockers may be needed — and/or treatment targeted to correcting ischemia. Acute ischemia?
Ken Grauer, MD
JUNE 2, 2023
Ruling out other potential causes of bradycardia ( ie, recent ischemia-infarction; hypothyroidism ). 2 short runs of SVT ( presumably atrial tachycardia ). 2 short runs of SVT ( presumably atrial tachycardia ). I would bet that this patient will soon receive a permanent pacemaker. = No pause beyond 2.0 No pause beyond 2.0
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