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The Wenckebach phenomenon.

G J Fromell, J Root, R Barish

The Journal of Emergency Medicine

|January 1, 1986

Summary

This summary is machine-generated.

The Wenckebach phenomenon, also known as type I AV block, involves a progressive delay in heart conduction leading to a dropped beat. This condition often resolves spontaneously, particularly after myocardial infarction.

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Area of Science:

Cardiology
Electrophysiology

Background:

The Wenckebach phenomenon, or type I AV block, is characterized by progressive conduction delay.
It is frequently observed in patients with inferior myocardial infarction.

Purpose of the Study:

To describe the characteristics and clinical implications of the Wenckebach phenomenon.
To highlight its association with specific pathological conditions.

Main Methods:

Review of clinical presentations and electrocardiographic findings associated with type I AV block.
Analysis of patient outcomes in various pathological settings.

Main Results:

The Wenckebach phenomenon presents as a lengthening of the PR interval followed by a dropped QRS complex.

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Inferior myocardial infarction is a common precipitating factor.

While temporary pacing may be necessary, spontaneous recovery is typical.

Conclusions:

The Wenckebach phenomenon is a transient conduction disturbance.
Prognosis is generally favorable with a high likelihood of spontaneous resolution.