Table 3. The types of conventional balloons used for pulmonary valve valvuloplasty and degree of pulmonary valve regurgitation (PR) occurred with each type.

Type of balloon and patients number	Mild	Moderate Severe
Minityshake (28)	24	2	2
Tyshake (5)	5	0	0
Sterling (3)	2	1	0
Z-Med 2,Z-Med x (3)	0	2	1
Evercross (4)	1	1	2
Opta pro (2)	0	1	1

Data expressed as number