Value of radiographic esophageal imaging in determining an optimal atrial septal puncture site for percutaneous balloon mitral valvuloplasty.
OBJECTIVE
To investigate the value of radiographic esophageal imaging in facilitating transseptal catheterization in patients undergoing percutaneous balloon mitral valvuloplasty.


METHODS
A total of 468 patients were randomized into either the study group (n = 234), in which radiographic esophageal imaging by the oral administration of a contrast media took place, or the control group (n = 234), in which the Ross technique was used. Of the 468 patients, 203 were males and 265 were females. The average ages of the study and control groups were 53 +/- 16 and 51 +/- 17 years, respectively. The patients had severe left atrial enlargement, as measured using 2-dimensional echocardiography.


RESULTS
In the study group, the left atrial impression on the esophagus was clearly seen, and was used to identify the puncture site on the right atrial side for the passage of the transseptal catheter. In the control group, the left atrial silhouette was not clearly shown by fluoroscopy in 112 patients (47.5%). The success rate of transseptal catheterization in the study group was higher than in the control group (99.6 vs. 45.7%, p = 0.0001). There were no complications in the study group, but pericardial tamponade occurred in 1 patient in the control group.


CONCLUSIONS
Radiographic esophageal imaging facilitates the identification of an optimal atrial transseptal puncture site, and improves the success rate of transseptal catheterization in patients undergoing percutaneous balloon mitral valvuloplasty.
Wu
Tong-Guo
TG
Department of Cardiology, Guangzhou Red Cross Hospital, The Fourth Affiliated Hospital of Ji-Nan University, Guangzhou, PR China.
Wang
Le-Xin
LX
Chen
Si-Wei
SW
Lin
Zi-Qing
ZQ
Yan
Cheng-Jun
CJ
Huang
Li-Ping
LP
D000328:Adult; D000368:Aged; D054087:Atrial Septum / Q000000981:diagnostic imaging*; D021721:Balloon Occlusion; D002404:Catheterization / Q000295:instrumentation / Q000379:methods*; D004947:Esophagus / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000000981:diagnostic imaging* / Q000628:therapy; D011859:Radiography; D011877:Radionuclide Imaging