CME TEST QUESTIONS: APRIL 2

013

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The CME questions in this issue are derived from the article, ‘‘Endovascular Treatment of Juxta-anastomotic Venous

Stenoses of Forearm Radiocephalic Fistulas: Long-term Results and Prognostic Factors’’ by Julie Mortamais et al.

1.

Subjects in this study included:

a) Forearm radiocephalic fistulas of the first 2 to 5 cm.

b) Radiocephalic synthetic or composite grafts.

c) Stenoses of the arterial anastomosis.

d) Arteriovenous fistulas (AFVs) with stenosis in the

proximal veins.

2.

Evaluation with fistulography was performed if there

was: (Indicate the incorrect response.)

a) Repeated difficulty in cannulation, prolonged

bleeding at cannulation sites, and edema or pain

of the hand.

b) Difficulty on two occasions in obtaining dialysis

with flow of at least 350 mL/min or repeated

measurement of venous pressure of 4 150 mm Hg.

c) Abnormal color Doppler study of the feeding artery

or outflow vein with 4 50% stenosis or decreased

flow of o 500 mL/min.

d) Elevated resistive index of the brachial artery

of 0.55.

Endovascular procedures did not include:

3.

a) Balloon angioplasty.

b) Cutting balloon angioplasty.

c) Covered stents (Viator; W. L. Gore & Associates,

Newark, Delaware).

d) Metallic stents (Wallstent; Boston Scientific,

Natick, Massachusetts).

4.

The significant factors that were not found to influence

the number of endovascular procedures performed were:

a) A short delay between the first two interventions.

b) Diabetes mellitus, vascular comorbidities, gender,

anastomotic site, and maturity and age of AVF.

c) Severity of stenosis posttreatment 4 50%.

d) Length of the stenosis greater than 10 mm.