Ken Grauer, MD

OCTOBER 27, 2023

My Immediate Impression — was that this elderly woman with a several week history of symptoms would most likely leave the hospital with a pacemaker. Given this patient's older age — if nothing "fixable" is found, she most likely has SSS ( S ick S inus S yndrome ) and will need a pacemaker ( See ECG Blog #342 for more on SSS ).

Blog 101

Blog Pacemaker Bradycardia Arrhythmia 101

Dr. Smith's ECG Blog

MAY 5, 2023

My thoughts were the following: ECGs #1 and #2 showed a completely unreliable sinus pacemaker, with presumed high-grade 2nd-degree AV block — and frequent resultant pauses of over 2 seconds ( that would have been even longer had it not been for intermittent relief from the atrial escape focus ). What Does this All Mean?

Bradycardia 52

Bradycardia Cardiac Arrest Arrhythmia Pacemaker 52

Dr. Smith's ECG Blog

FEBRUARY 27, 2023

In fact, sometimes the sinus node is working and acting as a pacemaker but no P waves are visible!! These T-waves are tall but have a narrow base and a corresponding flat ST segment (see lead V4). Also, there are no definite P-waves and this is another result of hyperkalemia. This is called sino-ventricular rhythm. The patient was treated.

Tachycardia 52

Tachycardia Document Blog Bradycardia 52

CardiacWire

FEBRUARY 7, 2025

Patients admitted on weekends also experienced higher rates of a range of complications: Paravalvular leakage (0.97% vs. 0.59%) Cardiogenic shock (7.59% vs. 3.97%) Permanent pacemaker implantation (11.12% vs. 9.25%) Endocarditis (0.74% vs. 0.37%) Cardiac arrest (2.19% vs. 1.65%) Acute kidney injury (29.76% vs. 19.56%) Acute ischemic stroke (2.94% vs. (..)

TAVR 59

TAVR Cardiogenic Shock Hospital Cardiac Arrest 59

EMS 12-Lead

MARCH 30, 2024

This is demonstrated ( Figure 5 ) by the gap in arrows at the bottom of the strip, signifying that the demand pacemaker has recognized an underlying rhythm (in this case, artifact from a moving ambulance). The artifact fools the pacemaker into thinking the rhythm is native. Current 85mA. They are unable to feel a pulse and resume CPR.

Cardiac Arrest 124

Cardiac Arrest Pacemaker Pulmonary Bradycardia 124

EMS 12-Lead

MAY 15, 2024

Patient had an unwitnessed cardiac arrest without bystander CPR performed. Figure 3 : TCP is started and the pacer spikes are followed by small phantom complexes and interspersed with native beats of the heart recognized by the demand pacemaker with a triangle and a pause in the pacer depolarization.

Atrial Fibrillation 132

Atrial Fibrillation Bradycardia Pacemaker Cardiac Arrest 132

Journal of Cardiovascular Electrophysiology

DECEMBER 17, 2024

Abstract Introduction The Medtronic Micra VR and Abbott AVEIR VR are the leadless pacemakers (LPM) currently available in the United States (US). The incidences of procedure-related death, cardiac perforation. cardiac arrest, emergency pericardial drainage or reparative surgery were similar for both LPMs ( p >.05).

Pacemaker 40

Pacemaker Cardiac Arrest Article 40

Wellnest

DECEMBER 21, 2022

Cardiac arrest Cardiac arrest is a medical emergency in which the heart stops pumping blood to the body. Electrocardiogram, echocardiogram, and some other tests are done for patients with cardiac arrest. If the vital organs do not get their blood supply back quickly, it can lead to death.

Cardiac Arrest 52

Cardiac Arrest Heart attacks Heart Attack Atrial Fibrillation 52

Dr. Smith's ECG Blog

JULY 21, 2024

If there had been — a temporary atrial pacemaker could have been considered as a way of increasing the heart rate to suppress a bradycardia-dependent arrhythmia ("overdrive pacing"). Some residual ischemia in the infarct border might still be present. QUESTION: How will you handle this arrhythmia given the clinical scenario?

Arrhythmia 131

Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 131

Frontiers in Cardiovascular Medicine

NOVEMBER 19, 2024

Hospitalizations with a primary diagnosis suggestive of CS (HF/cardiomyopathy, cardiac arrest, arrhythmias, or heart block) were categorized into cases with and without CS as a secondary diagnosis (CS+ and CS−, respectively).

Hospital 59

Hospital Cardiac Arrest Cardiomyopathy Arrhythmia 59