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(Circulation. 2000;101:847.)
© 2000 American Heart Association, Inc.

Brief Rapid Communications

Transcatheter Closure of Atrial Septal Defects Without Fluoroscopy

Feasibility of a New Method

Peter Ewert, MD; Felix Berger, MD; Ingo Daehnert, MD; John van Wees, MD; Matthias Gittermann, MD; Hashim Abdul-Khaliq, MD; Peter E. Lange, MD, PhD

From Abteilung für angeborene Herzfehler, Deutsches Herzzentrum Berlin, Germany.

Correspondence to Peter Ewert, MD, Abt. für Angeborene Herzfehler, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353 Berlin, Germany. E-mail ewert{at}dhzb.de

Background—In an effort to reduce x-ray exposure, we developed a technique for transcatheter closure of atrial septal defects under echocardiographic guidance without fluoroscopy. To assess the efficiency of this procedure for routine use, we compared our initial results with those for the conventional procedure.

Methods and Results—Twenty-two randomly selected patients (median age 18 years; range 2 to 66 years) with atrial septal defects (n=13) or patent foramen ovale (n=9) underwent cardiac catheterization for possible interventional defect closure with echocardiography as the only imaging tool. Median stretched diameter was 9 mm (range 6 to 26 mm); median left-to-right shunt over the atrial septal defects was Qp/Qs=1.8 (range 1.5 to 2.6). An Amplatzer septal occluder was successfully implanted in 19 defects without fluoroscopy and in 3 with the help of radiography. After 1 month, complete defect closure was documented in all patients. Compared with the conventional procedure of a control group of 131 patients, procedure times were not significantly different (88 versus 100 minutes; P=0.09). However, the study group received significantly higher doses of propofol for sedation (9.9 versus 5.6 mg/kg body weight; P=0.002) owing to extended transesophageal echocardiography.

Conclusions—In the majority of patients in whom transcatheter closure of interatrial communications with the Amplatzer septal occluder is possible, the procedure can be safely performed under echocardiographic guidance without fluoroscopy.

Key Words: heart septal defects • catheterization • echocardiography

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