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目的:观察经皮球囊血管成形术对小儿先天性主动脉缩窄(COA)的即刻以及中长期疗效。方法:应用经皮球囊血管成形术,治疗小儿膜型COA7例,选择球囊直径为缩窄处内径的2.4～3倍,以4～6个大气压的压力快速充盈扩张,持续10s,扩张2～3次,每次间隔3min。扩张前、后即刻测压、造影。随访观察血压、缩窄段两端压差的变化。结果:术后即刻缩窄处内径由术前的(3.80±1.23)mm增宽至(6.83±0.98)mm,缩窄段两端压差由术前的(47.50±15.61)mmHg降为(6.50±6.61)mmHg,症状缓解。随访3～7年未发生再狭窄,高血压得到有效控制,无并发症。结论:经皮球囊血管成形术治疗小儿COA即刻以及中、长期疗效可靠,方法简便、安全、术后恢复快。
Objective: To observe the immediate and long-term effects of percutaneous balloon angioplasty on congenital aortic constriction (COA) in children. Methods: Percutaneous balloon angioplasty was used to treat 7 cases of pediatric membranous COA. The diameter of the balloon was 2.4-3 times of the diameter of the constriction, and the balloon was rapidly inflated and expanded at a pressure of 4-6 atm for 10 seconds. ~ 3 times, each interval 3min. Before and after expansion, manometry immediately, contrast. Follow-up observation of blood pressure, narrowing the pressure changes at both ends of the segment. Results: Immediately after operation, the internal diameter of the narrowing was (3.80 ± 1.23) mm widened to (6.83 ± 0.98) mm, and the pressure drop at the narrowing was reduced from (47.50 ± 15.61) mmHg ± 6.61) mmHg, the symptoms relieved. No follow-up 3 to 7 years of restenosis, hypertension was effectively controlled, no complications. CONCLUSION: Percutaneous balloon angioplasty is an effective and safe method for the treatment of pediatric COA immediately, as well as in the medium and long term. The method is simple, safe and rapid after operation.