J Korean Radiol Soc.  1993 Jun;29(3):410-420.

An experimental study on balloon catheter pulmonary valvuloplasty: Comparison between single and double balloon catheters

• Yeon KM
• Lee HK
• Yoon YS
• Shin YM
• Han MC

Abstract

Balloon pulnounary valvuloplasty is an established method in the treatment of congenital valvular pulmonary stenosis. Balloon valvuloplasty was performed by using one or two balloons in a total of 19 mongrel dogs. Cross sectional area ratio ranging 145-406% was used to compare the relative sizes of the pulmonary annulus the balloon Hemodynamic changes and cardiac damages in single and double balloon groups were analyzed. Survival time of double balloon group was longer than that of single balloon group(P<0.05). Increment of the right ven?dular systolic pressure in single balloon group (mean 38 mmHg) was greater than that in double balloon group (mean 18 mmHg) (p<0.05). Decrement of the femoral arterial pressure in single balloon group (mean 87 mmHg) was greater than in double balloon group (mean 41 mmHg) (p<0.05). The locations of trauma were mainly the right ventricular free wall, the main pulmonary artery, the anterior leaflet of the pulmonary valve and in a less degree, anterior wall of the right atrium, the right ventricular outflow tract and the left pulmonary artery in the order of frequency. There were no significant differences in cardiac damages between single and double balloon groups (P>0.05). Major microscopic findings were sloughing of the endotheliu, fibrin deposition, hemorrhage, localized myocardial infarction and so on. In conclusion, double balloon pulmonary valvuloplasty is superior to single balloon technique in survival time and hemodynamics. Therefore, double, balloon technique is recommended for the pulmonary valvuloplasty.

MeSH Terms

Animals
Arterial Pressure
Balloon Valvuloplasty
Blood Pressure
Catheters*
Dogs
Fibrin
Heart Atria
Hemodynamics
Hemorrhage
Methods
Myocardial Infarction
Pulmonary Artery
Pulmonary Valve
Pulmonary Valve Stenosis
Fibrin