JACC: CARDIOVASCULAR INTERVENTIONS

VOL. 8, NO. 4, 2015

ª 2015 BY THE AMERICAN COLLEGE OF CARDIOLOGY FOUNDATION

ISSN 1936-8798/$36.00

PUBLISHED BY ELSEVIER INC.

http://dx.doi.org/10.1016/j.jcin.2015.02.007

EDITORIAL COMMENT

Percutaneous Closure of Atrial Septal Defects Contraindications Are Hard to Find These Days* Bernhard Meier, MD

W

ith respect to closure of atrial septal

unrelated to the ASD or its closure. Exercise capacity,

defects (ASDs), there is a saying that

heart failure markers, and echocardiographic param-

large ASDs need to be closed because

eters were significantly improved in all age groups

they are large and small ASDs need to be closed

examined. The average hospital stay was more than

because they are small. The saying was the fruit

3 days, but this was likely more due to Japanese cus-

of percutaneous device closure. When open heart

toms than to the age of the patients or the treatment

surgery was the only option, the indication bar was

applied.

set relatively high at a shunt index expressed as

The problem of atrial fibrillation (AF) remains.

Q p /Q s >1.5. This meant that the pulmonary blood

Somewhat surprisingly, the prevalence of permanent

flow volume per minute had to be >50% higher than

AF was only 17%, i.e., 3% in the youngest, 14% in the

the systemic. Smaller shunts were by no means

middle, and 42% in the oldest age group. The ex-

acquitted from enlarging the right ventricle and

pected and also documented decrease in atrial size

both atria or from allowing paradoxical embolism,

may theoretically prevent a new occurrence of AF or

but their respective risks were deemed not to justify

potentially revert some permanent AF. Conversely, it

the perils of open heart surgery. Now, this indication

is known that device closure may trigger AF. There is

threshold has become an oxymoron. There is the

no mention in this paper of a new onset of AF in the

possibility to close a small ASD in an outpatient

roughly 3 years of follow-up. However, that does not

procedure with just local anesthesia of the groin

mean that it did not occur. It may simply not have

in

Percutaneous Closure of Atrial Septal Defects: Contraindications Are Hard to Find These Days.

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