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采用经皮球囊肺动脉瓣扩张术（ＰＢＰＶ）治疗先天性肺动脉瓣狭窄２例。均为男性、年龄分别为４．５岁、６．５岁。采用快速换片代替电影摄像测定瓣环直径。所用球囊直径大于瓣环直径的１５％和３３％；扩张前跨瓣压差分别为８．９３ｋＰａ（６７ｍｍＨｇ），３．０６ｋＰａ（２３ｍｍＨｇ）；扩张后分别降至１．３３ｋＰａ（１０ｍｍＨｇ），（０．２７ｋＰａ（２ｍｍＨｇ），即刻效果显著，随访三至五个月效果维持即刻水平。此方法操作简便、安全、经济、有效，可做为肺动脉瓣狭窄开胸手术的替代疗法。若无电影摄像，可用快速换片代替。
Percutaneous balloon pulmonary valvuloplasty (PBPV) in the treatment of congenital pulmonary stenosis in 2 cases. All men, aged 4.5 and 6.5 respectively. Rapid replacement film instead of film camera ring diameter measurement. The diameters of the used balloons were larger than 15% and 33% of the diameter of the annulus. The pre-expansion transvalvular pressures were 8.93 kPa (67 mmHg) and 3.06 kPa (23 mmHg), respectively, and then decreased to 1.33 kPa (10 mmHg) 0.27kPa (2mmHg), immediate effect is significant, follow-up of three to five months to maintain the immediate effect of the level of this method is simple, safe, economical and effective, can be used as an alternative thoracic surgery pulmonary valve stenosis.If no film camera , Can be replaced by quick changer.