What is wenckebach famous for?
Wenckebach is primarily remembered for his work in cardiology. In 1899 he provided a description of irregular pulses due to partial blockage of atrioventricular conduction, creating a progressive lengthening of conduction time in cardiac tissue.
What is sinus rhythm with 2nd degree AV block?
Second-degree type I AV block is specifically characterized by an increasing delay of AV nodal conduction until a P wave fails to conduct through the AV node. This is seen as progressive PR interval prolongation with each beat until a P wave is not conducted. There is an irregular R-R interval.
Who discovered wenckebach?
Medicine has many great pioneers, and in 1899, one such pioneer – Karel Frederik Wenckebach made a discovery which, even to this day, remains one of the fundamental concepts within electrophysiology.
What is Wenckebach phenomenon?
The Wenckebach phenomenon, or type I AV block, refers to a progressive lengthening of impulse conduction time, followed by a nonconducted impulse, or dropped beat. It can occur in a variety of pathologic settings, especially inferior myocardial infarction.
What is the other name for Wenckebach?
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always a disease of the AV node.
What is a Wenckebach rhythm?
A rhyme is often used to remember type I or Wenckebach: “longer, longer, longer, DROP, now you have a Wenckebach.” This rhyme is alluding to the progressive prolongation of the PR interval before a non-conducted beat or the lack of a QRS complex after a P wave.
What causes Wenckebach phenomenon?
Wenckebach, also known as Mobitz type 1 second degree heart block, is caused by a conduction block at the level of the AV node. It is usually reversible and there are many causes, including drugs which slow conduction through the AV node such as amiodarone, calcium channel blockers and digoxin [1].