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目的：探讨移植肾动脉狭窄（ＴＲＡＳ）的经皮血管成形术（ＰＴＡ）。材料和方法：经对侧股动脉或左肱动脉入路，使用５Ｆ普通球囊导管和２．６Ｆ微球囊导管，分别对８例ＴＲＡＳ行ＰＴＡ术。结果：经股动脉行ＰＴＡ成功４例，另４例改由肱动脉入路获成功。其中，４例行普通球囊导管扩张，另４例采用微球囊导管扩张或预扩后行普通球囊导管扩张。肾动脉狭窄率由治疗前的８４％—９７％降至１２％—３０％。无并发症。术后疗效：显效率６２．５％（５／８），有效率８７．５％（７／８）。结论：ＰＴＡ可安全有效地治疗ＴＲＡＳ。经肱动脉入路和微球囊导管的使用有助于提高手术成功率。
Objective: To investigate percutaneous transluminal angioplasty (PTA) of transplanted renal artery stenosis (TRAS). Materials and Methods: The contralateral femoral artery or left brachial artery approach, the use of 5F common balloon catheter and 2.6F micro balloon catheter, respectively, 8 cases of TRAS PTA. Results: 4 cases underwent PTA via femoral artery and 4 cases underwent successful brachial approach. Among them, 4 patients underwent common balloon catheter dilatation, and the other 4 patients underwent balloon catheter dilatation or pre-dilatation with balloon catheter. Renal artery stenosis decreased from 84% -97% before treatment to 12% -30%. No complications. Postoperative efficacy: markedly effective rate was 62.5% (5/8), the effective rate was 87.5% (7/8). Conclusion: PTA can treat TRAS safely and effectively. The use of brachial approach and microcapillary catheters can help improve the success rate of surgery.