Evaluation of femoropopliteal arteries with duplex ultrasound after angioplasty. Can we predict results at one year?
OBJECTIVE
To determine if Duplex ultrasound (DUS) 1 day after percutaneous transluminal angioplasty (PTA) is prognostic for haemodynamic and clinical results at 1 year.


METHODS
Prospective study.


METHODS
Thirty-four femoropopliteal artery segments were treated with PTA. The peak systolic velocity ratio (PSV ratio = PSV in stenosis: PSV in normal segment) was determined with DUS before PTA, 1 day after PTA and 1 year after PTA. Clinical results were assessed with the SVS/ISCVS (Society for Vascular Surgery/International Society for CardioVascular Surgery) results classification.


RESULTS
A 1 year, clinical benefit from PTA was seen in 16 of 25 patients (64%) and haemodynamic improvement in 20 of 34 treated segments (59%). With DUS three residual stenoses were found 1 day after PTA; all occluded within 1 year. Segments with good DUS results after PTA showed haemodynamic deterioration in 30%. Clinical improvement was seen in most patients with DUS improvement, whereas no change or deterioration was found in patients with both good and poor DUS results at 1 year.


CONCLUSIONS
Residual stenosis on DUS 1 day after PTA is prognostic for failure within 1 year. However, good DUS results after PTA cannot predict haemodynamic success. Haemodynamic success at 1 year does not imply clinical success.
Spijkerboer
A M
AM
Department of Radiology, University Hospital Utrecht, The Netherlands.
Nass
P C
PC
de Valois
J C
JC
van der Graaf
Y
Y
Eikelboom
B C
BC
Mali
W P
WP
D000328:Adult; D000368:Aged; D000792:Angiography; D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging* / Q000628:therapy*; D001783:Blood Flow Velocity; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery / Q000000981:diagnostic imaging*; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies; D013599:Systole / Q000502:physiology; D018616:Ultrasonography, Doppler, Duplex