atrioventricular nodal reentrant tachycardia

(redirected from AVNRT)
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.
Related to AVNRT: AVRT

atrioventricular nodal reentrant tachycardia

AVNRT Cardiology The most common form of paroxysmal SVT Treatment Antiarrhythmics are rarely successful; catheter ablation of the fast P wave causes complete heart block in 10%, requiring pacemaker placement; selective catheter ablation of the atrial end of the slow PW using radiofrequency current may eliminate AVNRT with little risk of AV block. See Supraventricular tachycardia.

atrioventricular nodal reentrant tachycardia

Abbreviation: AVNRT
The most common supraventricular tachycardia, resulting from abnormal conduction of electrical impulses through a self-sustaining circuit in the atrioventricular node. It occurs more often in women than in men, often in their twenties. The heart rate is usually between 150 and 250 bpm.
Synonym: junctional reciprocating tachycardia See: re-entry
See also: tachycardia
Mentioned in ?
References in periodicals archive ?
But the company did post-hoc analyses of subgroups, and determined that treatment was successful in 91% of the 104 AVNRT subjects, compared to 69% and 67% of those with AVRT and AF, respectively The long-term success rate for the AVNRT patients who had not been lost to follow-up at 6 months was 91%.
There were no cases of permanent AV block in 151 ablated subjects with AVNRT or AVRT, despite frequent ablations near the AV node, according to the manufacturer.
The occurrence of junctional ectopy during perinodal RF energy delivery has been associated with the successful elimination of AVNRT (2).
Fifty consecutive patients (18 males; mean age of 39 [+ or -] 22 years) who underwent successful slow pathway ablation for AVNRT were enrolled in the present retrospective study, after having given written informed consent.
We will comprehensively support these early cryoablation adopters with sufficient clinical, field service and technical sales teams during the course of each centre's first 15 Freezor AVNRT cases, to ensure physicians become fully accustomed to and proficient with the technology.
Based on more than 25 cases I have personally conducted, I can report that it is as easy or easier to perform an AVNRT procedure with cryotherapy than RF, and takes the same amount of time," said Jose Nazari, MD.