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Abstract: FR-PO712

Artery to Fistula Diameter Ratio as a Predictor of Early Re-Occlusion of Immature Arteriovenous Fistulas After Percutaneous Transluminal Angioplasty

Session Information

Category: Dialysis

  • 704 Dialysis: Vascular Access


  • Bae, Hong jin, Chung Nam National University hospital, Daejeon, Korea (the Republic of)
  • Song, Chang hun, Chungnam national university, Daejeon, Korea (the Republic of)
  • Ham, Youngrok, Chungnam National University Hospital, Daejeon, Korea (the Republic of)
  • Choi, Dae Eun, Chungnam National University, Seoul, Korea (the Republic of)
  • Lee, Kang Wook, Chungnam National University Hospital, Daejeon, Korea (the Republic of)
  • Lee, Jiwon M., Chungnam National University, Seoul, Korea (the Republic of)
  • Na, Ki Ryang, Chungnam National University Hospital, Daejeon, Korea (the Republic of)

Percutaneous transluminal angioplasty (PTA) is widely performed for arteriovenous fistula (AVF) that fails to mature after initial formation. We observed that some immature AVFs re-occlude earlier than others. We sought to investigate the predictors for early post-intervention failure of immature fistulas after the primary PTA.


We retrospectively reviewed the records and angiographic images of patients who had immature fistulas and thereby received PTA between years 2013 to 2017 at our center. We investigated the short-term post-intervention outcomes of the patients within 90 days post PTA. Patients who had re-occlusion within the period were defined as early failure group and the rest as patent group. We investigated factors associated with early failure.


There were 80 eligible patients with 22 brachiocephalic (BC) and 58 radiocephalic (RC) AVFs. The median age of the patients was 64 years [range, 38-87]. There were 51 (63%) males and 29 (36%) females. Among the 58 RC AVFs, 10 (17%) patients had early failure. Logistic regression analysis showed that larger artery to fistula (A/F) diameter ratio was the sole independent predictor of early failure after primary PTA (odd ratio 2.29 [1.023-5.147], P= 0.044).


Although further studies in a larger scale are required to confirm the clinical significance, larger A/F diameter ratio was a potential predictor of early re-occlusion in immature fistulas after primary PTA.


  • Government Support - Non-U.S.