Diagnosis
Second-Degree Atrioventricular Block, Type I, is diagnosed through clinical assessment and electrocardiogram (ECG) findings, which reveal a progressively lengthening PR interval leading to a skipped beat (dropped QRS complex).
Second-Degree Atrioventricular Block, Type I, often referred to as Mobitz Type I or Wenckebach, is a cardiac conduction disorder characterized by a progressive delay in the conduction of electrical impulses from the atria to the ventricles, leading to skipped QRS complexes.
Heart Rate: 60 to 100 beats per minute
Rhythm: Irregular.
P wave: Normal P waves preceding every conducted QRS complex
PR Interval: 0.12-0.20 seconds
QRS: 0.06-0.10 seconds
Second-Degree Atrioventricular Block, Type I, is diagnosed through clinical assessment and electrocardiogram (ECG) findings, which reveal a progressively lengthening PR interval leading to a skipped beat (dropped QRS complex).
The management of 2° AVB Type I depends on the patient's clinical condition, symptoms, and the presence of any reversible causes. Treatment options include: Observation: In many cases, Mobitz Type I is well-tolerated, and the patient may be asymptomatic. In such cases, close monitoring is often sufficient. Identify and Address Underlying Causes: If an underlying cause, such as medication-related AV block or electrolyte imbalances, is identified, it should be addressed. Temporary Pacing: In cases where the patient is symptomatic, has severe bradycardia, or is hemodynamically unstable, temporary transcutaneous or transvenous pacing may be used to support the heart's rhythm.