Woldemar Mobitz

And it was found sooner with the ECG patch, 22 versus 54 days.

Now, clinically significant arrhythmia was defined as non-sustained VT, greater than 120 beats per minute for greater than 4 beats, pause greater than 6 seconds, sinus brady, less than 30 beats per minute, bradycardia, less than 40 beats per minute for greater than 30 seconds, sustained ventricular tachycardia, or Mobitz 2 or complete heart block.

All of these were considered... significant arrhythmias.

In the supplement, the largest difference was in non-sustained VT 13 versus 104 patients and sustained VT 6 versus 14 in the standard care arm versus patch arm.

Permanent pacemaker insertion is recommended in those patients with unresolved high-degree AV block that persists for more than 72 hours.

The 2025 ACS guidelines give a class one recommendation level of evidence B from non-randomized data for permanent pacing in patients presenting with AMI with sustained evidence of second degree Mobitz type 2 AV block, high degree AV block, alternating bundle branch blocks, or third degree that is complete heart block that is persistent or infranodal.

This patient has had more than 72 hours of ongoing high grade heart block post-AMI.

continuous use of temporary transvenous pacing, which is answer choice A, dopamine infusion, answer choice C, or atropine, choice D, will not permanently treat the bradyarrhythmia, and hence none of these answers represents the next best treatment option for this patient.

So for this question, the main takeaway is that in patients presenting with acute myocardial infarction with sustained, that is, more than 72 hours, evidence of second-degree Mobitz II AV block, high-degree AV block, alternating bundle branch block, or third-degree AV block, that is, persistent or infernotal, permanent pacing is indicated.

So Dr. Medin, again, thanks for joining us in this discussion of this section of the guidelines.

We'd love to hear your thoughts about the recommendation for use of pacing in these patients.

Bradycardia ranges from completely benign to life-threatening.

Sinus bradycardia in athlete, first degree AV block and Mobitz type 1 wenky.

Batch block during sleep are usually physiological, caused by high vagal tone.

The dangerous ones are Mobitz type II block, high grade AV block, complete heart block, and alternating bundle branch block because they can progress suddenly to asystole.

Before you implant a pacemaker, always look for reversible causes.

Drugs are the commonest: beta blockers, verapamil, diltiazem, digoxin, ivabradine, and amiodarone, often in combination, especially in elderly patients with impaired kidney function.

A young patient with unexplained heart block should have a cardiac MRI to look for sarcoidosis.

In the acute setting with low blood pressure, give atropine, and if it fails, an adrenaline or isoprenaline infusion or transcutaneous pacing, and then temporary transvenous pacing.