Color-Flow Duplex Hemodynamic Assessment of Runoff in Ischemic Lower Limb Revascularization

The objective of this study was to evaluate the existence of hemodynamic arterial flow correlation between preoperative duplex scanning (DS) and intraoperative direct outflow resistance (IDOR) measurements in ischemic lower limb revascularization. Sixty-eight ischemic lower limbs were submitted to p...

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Bibliographic Details
Published in:Vascular 2006-05, Vol.14 (3), p.149-155
Main Authors: Henrique Rossi, Fabio, Puech-Leão, Pedro, Mitsuro Izukawa, Nilo, Pontes Junior, Sergio Cunha, Massamitsu Kambara, Antonio, Mattos Barreto, Rodrigo Bellio, Hassan Saleh, Mohamed, Gomes Ferreira Petisco, Ana Cláudia, Vasconcelos Oliveira, Llanes Alberto
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Blood Flow Velocity
Blood Vessel Prosthesis Implantation - methods
Decision Making
Female
Humans
Intraoperative Care - methods
Ischemia - diagnostic imaging
Ischemia - physiopathology
Ischemia - surgery
Leg - blood supply
Male
Middle Aged
Preoperative Care - methods
Ultrasonography, Doppler, Color
Vascular Resistance
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Summary:The objective of this study was to evaluate the existence of hemodynamic arterial flow correlation between preoperative duplex scanning (DS) and intraoperative direct outflow resistance (IDOR) measurements in ischemic lower limb revascularization. Sixty-eight ischemic lower limbs were submitted to preoperative DS. Anatomic and hemodynamic arterial characteristics of the outflow system were recorded, and the results were considered in the distal anastomosis placement site decision making. IDOR measurements were obtained at the same arterial segment, and Pearson's correlation coefficient test was performed to study the preoperative DS power in predicting the intraoperative outflow resistance. DS was technically satisfactory and helped define the distal anastomosis site in 93.2% of the cases (supragenicular popliteal artery, 19 [27.9%]; infragenicular popliteal artery, 10 [14.7%]; crural artery, 31 [57.4%]). A positive correlation could be found between preoperative DS and IDOR (0.450; p < .001). This correlation was particularly powerful in the crural artery (0.715; p < .001) when compared with the popliteal arterial segment (0.237; p = .192). Preoperative DS may help define the best distal arterial and outflow segment to be revascularized based on anatomic and hemodynamic parameters. There is a positive flow correlation between preoperative DS and IDOR that seems to be stronger in crural revascularization surgery.
ISSN:1708-5381
1708-539X
DOI:10.2310/6670.2006.00031