Most Common Arrhythmia: Intra-Atrial Re-Entrant Tachycardia

Share this content:
Most Common Arrhythmia: Intra-Atrial Re-Entrant Tachycardia
Most Common Arrhythmia: Intra-Atrial Re-Entrant Tachycardia

MONDAY, Aug. 14, 2017 (HealthDay News) -- For patients with congenital heart disease and atrial arrhythmias, the most common presenting arrhythmia is intra-atrial re-entrant tachycardia (IART), according to a study published in the Aug. 15 issue of the Journal of the American College of Cardiology.

Fabien Labombarda, M.D., from the Montreal Heart Institute, and colleagues conducted a multicenter cohort study involving 482 patients with congenital heart disease and atrial arrhythmias.

The researchers found that IART was the most common presenting arrhythmia (61.6 percent), followed by atrial fibrillation and focal atrial tachycardia (28.8 and 9.5 percent, respectively). There was an increase in the proportion of arrhythmias due to IART with increasing congenital heart disease complexity (47.2, 62.1, and 67.0 percent, respectively, for simple, moderate, and complex defects). Among those aged ≥50 years, atrial fibrillation increased with age to surpass IART as the most common arrhythmia (51.2 versus 44.2 percent). Independent associations with atrial fibrillation were seen for older age (odds ratio, 1.024 per year) and hypertension (odds ratio, 2.00). The predominant arrhythmia pattern was paroxysmal, persistent, and permanent in 62.3, 28.2, and 9.5 percent during a mean follow-up of 11.3 ± 9.4 years. There was an increase in permanent atrial arrhythmias from 3.1 to 22.6 percent in patients aged <20 years to ≥50 years.

"Atrial fibrillation increases in prevalence and atrial arrhythmias progressively become permanent as the population ages," the authors write.

The study was funded by a grant from Boehringer Ingelheim.

Abstract/Full Text (subscription or payment may be required)
Editorial (subscription or payment may be required)

Share this content:

is free, fast, and customized just for you!

Already a member?

Sign In Now »


Sign up for myCME e-newsletters


Drug Lookup

Browse drugs by: BrandGenericDisease

Trending Activities

All Professions

More in Home

Air Pollution May Damage Kidneys

Air Pollution May Damage Kidneys

Study finds link between particulate matter and renal function

Diabetes Treatment Failure May Actually Be Nonadherence

Diabetes Treatment Failure May Actually Be Nonadherence

Second-line treatment often initiated without evidence of recommended use of first-line treatment

Effect of Osteoporotic Fractures Similar to Diabetes Burden

Effect of Osteoporotic Fractures Similar to Diabetes Burden

Findings for quality of life with hip fractures, vertebral compression vs. vision loss, amputation

is free, fast, and customized just for you!

Already a member?

Sign In Now »