Korean J Pediatr.  2007 Oct;50(10):970-975. 10.3345/kjp.2007.50.10.970.

Comparison of defect size measured by transthoracic and transesophageal echocardiography with balloon occlusive diameter measured during transcatheter closure of atrial septal defect

• Hur K
• Kim JE
• Kim Y
• Kwon HS
• Yoo BW
• Choi JY
• Sul JH

• KMID: 2279310
• DOI: http://doi.org/10.3345/kjp.2007.50.10.970

Abstract

PURPOSE: Accurate measurement of defect size is important in transcatheter closure of atrial septal defect (ASD). We performed this study to analyze the difference between the measured ASD size and balloon occlusive diameter (BOD) by transthoracic (TTE) or transesophageal echocardiography (TEE).
METHODS
We investigated 78 patients who underwent transcatheter closure of ASD. The defect size and the distance between the surrounding structures were measured by TTE and TEE. The BOD was measured by TEE during cardiac catheterization. Clinical characteristics and echocardiographic data were compared and analyzed.
RESULTS
The difference between BOD and diameter by TTE was 4.8+/-3.6 mm on short axis view, 5.4+/-3.2 mm on long axis view. The difference between BOD and diameter by TEE was 3.6+/-2.2 mm on short axis view, 4.2+/-3.1 mm on long axis view. The difference between BOD and the diameter of defects on TTE, TEE had statistically significant positive correlations with the age of the patients, distance between the, defect and posterior atrial septal wall, the distance between the defect and the mitral valve leaflet, and the diameter of defects and the length of the atrial septum on TTE (P<0.05).
CONCLUSION
BOD of ASD can be estimated by the diameter on TTE and TEE. BOD is expected to measure larger, depending on the size of defects, the distance from surrounding structures and the location of defects on echocardiography. Our data offers important information on details of transcatheter ASD closure which can be helpful in predicting suitability and judging the procedural appropriateness during the procedure.

Keyword

Atrial septal defect; Transthoracic echocardiography; Transesophageal echocardiography

MeSH Terms

Atrial Septum
Axis, Cervical Vertebra
Cardiac Catheterization
Cardiac Catheters
Echocardiography
Echocardiography, Transesophageal*
Heart Septal Defects, Atrial*
Humans
Mitral Valve