Search results for "popliteal artery"
showing 10 items of 22 documents
Popliteal Artery Aneurysm Repair in the Endovascular Era: Fourteen-Years Single Center Experience
2015
Abstract To compare outcomes of popliteal artery aneurysm (PAA) repair by endovascular treatment, great saphenous vein (GSV) bypass, and prosthetic bypass. Single center retrospective analysis of patients presenting PAA from 2000 to 2013. Patients were divided into endovascular treatment (group A); GSV bypass (group B); and prosthetic graft bypass (group C). Outcomes were technical success, perioperative mortality, and morbidity. Survival, primary and secondary patency, and freedom from reintervention rate were estimated. Differences in ankle-brachial index (ABI), in-hospital length of stay (InH-Los), red blood cell (RBC) transfusion, and limb loss were reported. Mean follow-up was 49 (medi…
The DETOUR procedure: no more need for conventional bypass surgery?
2018
Background Long segment occlusive disease in the superficial femoral artery remains a treatment challenge despite advances in open surgical and endovascular approaches. We report initial clinical results of an entirely new procedure to perform percutaneous femoro-popliteal bypass using the DETOUR System. First-in-human patients were performed in New Zealand from December 2013 to June 2014. After modifications to the technique and devices had significantly refined the procedure, the Detour I Trial commenced. Methods Review of initial results in the first five patients treated at a single site enrolled in IRB-approved, prospective clinical study using the DETOUR System. All patients signed in…
Trans-popliteal hybrid retrograde technique for revascularization of chronic total occlusions of the superficial femoral artery.
2020
Objectives We present the technical description and preliminary results of a hybrid approach for the treatment of chronic total occlusions of superficial femoral artery in the setting of critical limb-threatening ischemia (CLTI). Methods A retrospective analysis of selected case series was performed. A trans-popliteal hybrid technique was carried out in seven limbs (six patients). Open exposure of above-the-knee popliteal artery was performed over its maximum calcification zone. After retrograde recanalization and graft-stenting of the entire superficial femoral artery, endarterectomy of the popliteal artery was performed for debulking and widening of the distal landing zone of the endopros…
Femoropopliteal prosthetic bypass with glutaraldehyde stabilized human umbilical vein (HUV).
2007
Objective Femoropopliteal bypass still is the standard surgical therapy for disabling claudication and critical ischemia. When autologous vein is not suitable synthetic or biological prostheses may be considered. Second generation glutaraldehyde tanned human umbilical vein (HUV) graft was chosen for above and below knee femoropopliteal bypass when autologous vein was not available. A single center experience regarding long-term graft function, secondary reinterventions, and potential biodegeneration of the HUV is presented. Methods Between January 1994 and January 2005, 211 consecutive femoropopliteal bypass operations with HUV (65 above knee and 146 below knee) were performed in 197 patien…
The effects of linearly increasing flip angles on 3D inflow MR angiography
1994
As recently demonstrated, spin saturation effects in 3D time-of-flight (TOF) MR angiography (MRA) can be reduced by using RF pulses with linearly increasing flip angles (ramp pulses) in the main direction of flow. We developed a model for calculating the signal distribution of proton flow within the excitation volume (slab) for different ramp slopes and compared the results with the measured distribution for the lower-leg arteries. The ramp pulses were generated using the Fourier transformation of the desired excitation profiles. With a bandwidth of 6 kHz and a pulse length of 2.56 ms satisfactory ramps with variable slopes were generated and applied in a standard flow-compensated 3D FISP s…
Simultaneous endovascular treatment of multiple peripheral aneurysms
2007
A 69-year-old man with a history of hypertension and severe pulmonary disease had asymptomatic bilateral common iliac and popliteal artery aneurysms. A bifurcated Talent and two Wallgraft stent-grafts were deployed via open femoral arteriotomies to exclude the aneurysms, respectively. The patient had an uncomplicated recovery, with no transfusion need; the hospital stay was 4 days. After a 5-year follow-up, no complication or endoleak has been detected, with patency of endografts and a mean decrease of 15% in aneurysm transverse diameters. Simultaneous endovascular repair should be considered in the treatment of multiple peripheral aneurysms, to avoid sequential conventional or endovascular…
THE POSTERIOR APPROACH IN THE REPAIR OF POPLITEAL ARTERY ANEURYSMS: A TWO CENTER EXPERIENCE
2010
Objective: Popliteal artery aneurysms (PAA) are most frequent among peripheral aneurysms. The most commonly performed surgical repair is proximal and distal ligation with a saphenous vein bypass. We aim to report the early and mid-term outcome of surgical repair of popliteal artery aneurysms via a posterior approach. Methods: A retrospective review of consecutive patients who underwent surgical PAA repair in two vascular surgery units between 1998 and 2009 was performed. Within this group, the posterior approach was used in 28 repairs in 26 patients (25 men). All patients had an ultrasound examination. Eighteen patients underwent conventional angiography while CT angiography with 3-D recons…
Percutaneous Femoropopliteal Bypass: 2-Year Results of the DETOUR System
2021
Purpose: This study investigated the 2-year safety and effectiveness of the PQ Bypass DETOUR system as a percutaneous femoropopliteal bypass. Materials and Methods: Seventy-eight patients with 82 long-segment femoropopliteal lesions were enrolled in this prospective, single-arm, multicenter study. The DETOUR system deployed Torus stent grafts directed through a transvenous route. Eligible patients included those with lesions of >10 cm and average of 371±55 mm. Key safety endpoints included major adverse events (MAEs) and symptomatic deep venous thrombosis in the target limb. Effectiveness endpoints included primary patency defined as freedom from ≥50% stenosis, occlusion, or clinically-d…
Prospective comparison of CT angiography of the legs with intraarterial digital subtraction angiography.
1996
The aim of this study was to determine the accuracy of CT angiography (CTA) with a single spiral acquisition for the diagnosis of arterial stenoses and occlusion in patients with peripheral vascular occlusive disease.In a prospective study, intraarterial digital subtraction angiography and i.v. CTA from the groin to the lower calves were performed on 50 patients with vascular occlusive disease. Maximum-intensity-projection images in multiple views were produced. The accuracy of CTA with and without analysis of the axial scans was determined with digital subtraction angiography as the standard.The sensitivities of CTA were 100% for the diagnosis of femoral artery occlusion, 100% for the dete…
Der kurze popliteodistale Venenbypass beim diabetischen Fußsyndrom DFS
2003
Purpose: World wide increase of diabetes compound with diabetic foot syndrome becomes a challenge in vascular surgery to avoid limb loss. In diabetics a special pattern of atherosclerosis is prevalent with disease limited to the infrageniculate arteries but sparing inflow vessels and distal tibial and pedal arteries. This provides short bypass grafting from popliteal to tibial and pedal arteries, a concept first described by F. Veith in 1981. Methods: Diabetics with severe atherosclerotic disease and limb-threatening ischemia got general evaluation and vascular imaging. Falling in this special category the patients underwent short vein bypass grafting originating at the first or third popli…