Fig 1.
Illustration of surgical revisions for swing segment steno-occlusion in radiocephalic arteriovenous fistula: (A) Interposition, (B) Patch angioplasty, (C) Transposition, (D) Proximalization (Blue: Cephalic vein, Dashed blue: Stenotic vein segment, Red: Radial artery, Dashed red: Omitted distal artery, Yellow: Patch, Gray: Interposition graft).
Table 1.
Characteristic of patients who underwent swing segment revision of radiocephalic arteriovenous fistula (RC-AVF).
Table 2.
Lesion characteristics of swing segment.
Fig 2.
Comparison of patency rates among the entire cohort of patients across swing segment revision groups: endovascular revision vs surgical revision.
(A) Primary patency, (B) Assisted primary patency, and (C) Secondary patency are depicted. The endovascular revision group is shown as a dashed line and the surgical revision group as a solid line. Crosses (+) indicate censored observations, meaning that the patient’s patency status was not observed beyond that time point.
Table 3.
Factors associated with loss of primary patency in whole cohort.
Table 4.
Factors associated with loss of primary patency within subgroup of stenosis or occlusion.
Fig 3.
Comparison of primary patency rates within the (A) occlusion arm and (B) stenosis arm between the two swing segment revision groups: endovascular revision group vs surgical revision group.
The endovascular revision group is shown as a dashed line and the surgical revision group as a solid line. Crosses (+) indicate censored observations, meaning that the patient’s patency status was not observed beyond that time point.