Is adenosine contraindicated in WPW?
Is adenosine contraindicated in WPW?
In the presence of WPW, traditional treatments may be contraindicated. Any AV nodal slowing agent, including adenosine, diltiazem and amiodarone, may cause an adverse reaction in the presence of WPW.
What medication is contraindicated in WPW?
The heart drug, digoxin, is contraindicated in adults with WPW syndrome.
What antiarrhythmic is contraindicated in WPW?
The use of digoxin or verapamil for long-term therapy appears to be contraindicated for many patients with WPW syndrome, because these medications may enhance antegrade conduction through the AP by increasing the refractory period in the AV node.
Why is Cardizem contraindicated in WPW?
Diltiazem should be avoided in the presence of pre-excited AF with RVR, that is, AF in the presence of accessory pathway, i.e. Wolff Parkinson White (WPW) syndrome, as AVN blockage can lead to increased conduction through the accessory pathway, leading to life-threatening rapid ventricular rates.
Why are calcium-channel blockers contraindicated in WPW?
Treatment of Atrial Fibrillation and WPW Syndrome The usual rate-slowing drugs used in atrial fibrillation are not effective, and digoxin and the nondihydropyridine calcium channel blockers (eg, verapamil, diltiazem) are contraindicated because they may increase the ventricular rate and cause ventricular fibrillation.
What drugs are contraindicated in WPW?
Overview. In Wolff-Parkinson-White (WPW) syndrome,an extra signaling pathway between the heart’s upper and lower chambers causes a fast heartbeat (tachycardia).
Why is adenosine contraindicated in WPW?
Why is adenosine contraindicated in WPW? Adenosine slows or blocks antegrade (atrial to ventricular) conduction through the AV node but doesn’t affect accessory or bypass tracts like those seen in WPW syndrome. Because of this, adenosine can be dangerous when given to patients with atrial fibrillation, especially if they have a bypass track.
How to treat WPW?
Medications.
Can adenosine be used in WPW?
In the presence of WPW, traditional treatments may be contraindicated. Any AV nodal slowing agent, including adenosine, diltiazem and amiodarone, may cause an adverse reaction in the presence of WPW. Of those three medications, AHA recommends amiodarone. It is important to keep WPW in mind when treating a tachycardia.