PERCUTANEOUS TRANSLUMINAL ANGIOPLASTY AND WALL STENT PLACEMENT IN THE TREATMENT OF TRANSPLANTED RENAL ARTERY STENOSIS.

Authors

  • Krisdee PRABHASAVAT Department of Radiology
  • Saroj VANAPRUKS Department of Radiology
  • Somsak TANAWATTANACHAROEN Department of Medicine, Faculty of Medicine, Siriraj Hospital. Mahidol University

Keywords:

Transplanted renal artery stenosis, kidney transplantation, renal angioplasty, balloon, stent

Abstract

PURPOSE: We report our experience with percutaneous transluminal angioplasty (PTA) and endoluminal stent placement in the treatment of transplanted renal artery stenosis (TRAS).

MATERIALS AND METHODS: From February 1998 to February 1999, we performed PTA in 3 patients who were affected by TRAS and besides; | Wall stent was successfully implanted in | patient affected by transplanted renal artery stenosis. All transplanted kidneys were procured from cadaver donors. The patients were routinely evaluated with color Doppler ultrasonography (CDUS), and when there was the patient in whom the CDUS showed evidence of transplanted renal artery stenosis, the magnetic resonance imaging/angiography (MRI/MRA) and renal angiography would be performed. The mean interval between transplantation and stenosis detection was 9 months (range 4 to 12 months). When serious renal stenosis was diagnosed (stenosis greater than 50%). selected transplanted renal angiography, and endoluminal renal angioplasty had been performed in 3 patients. In 1 patient, an endoluminal metallic Wall stent was placed in the site of stenosis at the anastomotic site.

RESULTS: Clinical outcome was improved in all 3 patients (100 %), the patients became normotensive and there was large amount of urine flow after PTA. The mean residual renal stenosis after PTA was less than 25%. There was no major complication, only in 1 patient there was minor complication, that was a small false aneurysm occurred at the contralateral femoral artery punctured site, which was treated with US probe compression technique.

CONCLUSION: Percutaneous transluminal angioplasty and stent implantation is the initial interventive treatment of choice for high grade transplanted renal artery stenosis, with good clinical outcome. and low complication rate.

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References

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Published

2023-04-12

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1.
PRABHASAVAT K, VANAPRUKS S, TANAWATTANACHAROEN S. PERCUTANEOUS TRANSLUMINAL ANGIOPLASTY AND WALL STENT PLACEMENT IN THE TREATMENT OF TRANSPLANTED RENAL ARTERY STENOSIS. ASEAN J Radiol [Internet]. 2023 Apr. 12 [cited 2024 Dec. 12];6(1):27-34. Available from: https://asean-journal-radiology.org/index.php/ajr/article/view/512

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