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本文报道16例经皮球囊肺动脉瓣成形术后发生右室漏斗部反应性狭窄,术后肺动脉与漏斗部压差由16.1±5.1kPa降至2.3±0.6kPa,漏斗部与右室(入)压差仍达7.2±4.9kPa,右室漏斗部反应指数由0.44±0.14减至0.28±0.11。经6月～6年随访,87.5%患儿于6个月内反应性狭窄解除,1年内全部恢复。本研究表明,该反应主要和肺动脉瓣狭窄的严重度及漏斗部局部刺激有关,而和采用球/瓣比值关系不大,据此讨论了防治方法。
This article reports 16 cases of percutaneous balloon pulmonary valvuloplasty after the occurrence of RV stenosis, postoperative pulmonary artery and funnel pressure drop from 16.1 ± 5.1kPa to 2.3 ± 0.6kPa, funnel and right ventricle (into) The pressure difference still reached 7.2 ± 4.9kPa, and the right ventricular funnel reaction index decreased from 0.44 ± 0.14 to 0.28 ± 0.11. After 6 months to 6 years of follow-up, 87.5% of children were relieved of stenosis within 6 months and all recovered within 1 year. This study shows that the reaction is mainly related to the severity of pulmonary valve stenosis and local stimulation of the funnel, and the use of the ball / valve ratio is not significant, based on which discussed the prevention and treatment methods.