Publications by authors named "Klaus Linni"

Objective: In peripheral arterial disease, patency, limb salvage, and survival rates are mostly reported using Kaplan-Meier analyses. When comparing different revascularisation techniques, these methods have limitations in analysing complex patient flows over time. This study aimed to present, illustrate, and discuss new concepts based on multistate models of analysing outcome parameters in peripheral arterial disease.

View Article and Find Full Text PDF

: The aim of this study was to evaluate the clinical outcomes of patients suffering from chronic limb-threatening ischemia (CLTI) and tissue loss treated with primary isolated femoral bifurcation endarterectomy (FBE) or with FBE combined with bypass surgery. : This retrospective study was performed in a tertiary university-based care centre. Between January 2008 and December 2019, a prospectively collected database of patients suffering from CLTI and tissue loss and undergoing either primary FBE (group A) or FBE in combination with bypass surgery (group B) was analysed.

View Article and Find Full Text PDF

Background: No adequately powered studies exist to compare major clinical outcomes after endovascular therapy (EVT) with stent implantation vs bypass surgery (BSx) for symptomatic femoropopliteal peripheral artery disease.

Objectives: This study sought to perform a pooled analysis of individual patient data from all randomized controlled trials comparing EVT vs BSx.

Methods: Principal investigators of 5 of 6 available randomized controlled trials agreed to pool individual patient data.

View Article and Find Full Text PDF

Background: Carotid bifurcation revascularization using interposition grafts is rare. While internal carotid artery (ICA) revascularization is regarded as mandatory, the external carotid artery (ECA) is severed in most instances. Long-term results of an autologous bifurcated carotid artery reconstruction are discussed.

View Article and Find Full Text PDF

: The feasibility of endovascular treatment (EVT) for Trans-Atlantic Inter-Society Consensus (TASC) II C and D femoropopliteal artery lesions has been described, but no prospective study has performed a long-term follow-up. The aim of this study was to report the long-term results of nitinol stents (NS) for the treatment of long femoropopliteal lesions. : A single-center prospective, randomized controlled trial (RCT) comparing EVT with NS and vein bypass surgery was previously performed.

View Article and Find Full Text PDF

Objectives: The aim of this study was to compare technical success, patency rates and clinical outcomes of vein bypass (VBP) with angioplasty and nitinol stents (NS) in femoropopliteal Trans-Atlantic Intersociety Consensus (TASC) II C and D lesions.

Summary Background Data: Guidelines widely recommend an endovas-cular-first strategy for long femoropopliteal lesions without sufficient data comparing it with vein bypass surgery.

Methods: A single-center prospective, randomized controlled trial (RCT) was performed, after approval of the local ethics committee, with technical success, primary and secondary patency as primary endpoints.

View Article and Find Full Text PDF

Background: Psychological factors like anxiety and depression are recognised to play a causal role in the development of cardiovascular disease and they may also influence outcome after vascular surgery procedures. The aim of this study was to investigate the association of anxiety and depression with postoperative outcome following elective carotid surgery.

Methods: Single centre prospective observational study of patients treated for asymptomatic carotid artery stenosis at an academic vascular surgery centre.

View Article and Find Full Text PDF

Background: Guidelines for the treatment of long femoropopliteal lesions are not based on a high level of evidence and recent randomized controlled trials (RCTs) challenge vein bypass (VBP) as the recommended therapy. This study compared prosthetic (PTFE) bypass, VBP and angioplasty with nitinol stents in long femoropopliteal lesions.

Methods: Pooled data from a RCT and a retrospective database with the same inclusion criteria were analyzed with primary and secondary patency as well as freedom from target lesion revascularization (TLR) as primary endpoints.

View Article and Find Full Text PDF

Objectives: This study sought to compare patency rates and clinical outcomes of nitinol stents and primary vein bypass in long femoropopliteal lesions.

Background: An endovascular-first strategy for long femoropopliteal lesions is widely recommended without sufficient data comparing it with bypass surgery. Nitinol stents are widely used as the standard endovascular therapy.

View Article and Find Full Text PDF

Objectives: Groin complications following vascular reconstruction, extensive trauma, or severe radiation induced scarring may complicate future revascularisation procedures of the lower limb. Although several techniques have been described, only few cases of trans-iliac bypass grafting have been published. The aim of this study was to perform a review of the literature on trans-ilac bypass grafting and add the authors' experience.

View Article and Find Full Text PDF

Background: Bypass in the upper extremity is a rare procedure mainly performed for chronic ischemia, trauma, or hemodialysis access complications. Feasibility and success of use of the arm vein and small saphenous vein (SSV) for autologous vein bypass have been reported in peripheral artery bypass procedures. There are very few reports on the use of alternative veins in upper extremity bypass.

View Article and Find Full Text PDF

Objectives: The small saphenous vein (SSV) is a potential vein source for bypass if neither greater saphenous vein nor arm vein is available. This study reports experience using SSV as part of an all autologous vein bypass policy.

Methods: This study comprised single centre retrospective data analysis of all consecutive patients treated at an academic tertiary referral centre from January 1998 to February 2017 using the SSV as the main peripheral bypass graft.

View Article and Find Full Text PDF

Management of recurrent thoracoabdominal aneurysmal disease of the aorta is challenging. We report three patients with previous endovascular or open aortic repair requiring redo repair by treatment by stent-graft implantation of the thoracoabdominal aorta and visceral debranching using an antegrade inflow from the ascending aorta. All three interventions were successful, with two patients alive 5 and 2 years, respectively, after this operation, while the third patient died 2 days after the procedure due to cardiac failure.

View Article and Find Full Text PDF

Objective/background: Carotid bifurcation resection with subsequent reconstruction is performed infrequently. While internal carotid artery (ICA) revascularisation is regarded as mandatory, the external carotid artery (ECA) is severed in most instances. Indications for and results of an autologous bifurcated carotid artery reconstruction are discussed.

View Article and Find Full Text PDF

Objective: Technical progress in angioplasty expanded its application to very distal arterial lesions of the lower extremity. In cases of unsuccessful angioplasty tibiodistal bypass surgery may be required for limb salvage. We investigated the long-term outcome of this technique in patients with critical limb ischemia.

View Article and Find Full Text PDF

Objective: The aim of this study was to compare the clinical and hemodynamic outcomes of plain vs paclitaxel-coated percutaneous transluminal angioplasty (PTA) in patients with infrainguinal vein bypass stenosis.

Methods: A single-center retrospective analysis was conducted of consecutive patients treated by infrainguinal bypass PTA. Primary study end points were primary and assisted primary patency.

View Article and Find Full Text PDF

Background: The aim of this randomized study was to determine whether arm vein (AV) or contralateral greater saphenous vein (CGSV) is the better alternative vein source for lower extremity bypass reconstruction.

Methods: Consecutive patients with absent ipsilateral greater saphenous vein undergoing lower extremity revascularization were allocated to group A (AV bypass) or B (CGSV bypass).

Results: From 6, 2010, to 11, 2013, 64 patients (32 each group) were randomized.

View Article and Find Full Text PDF

Purpose: To compare clinical and hemodynamic outcome in patients undergoing treatment of common femoral artery (CFA) atherosclerotic lesions by bioabsorbable stent implantation (BASI group) or by common femoral artery endarterectomy (CFE group).

Methods: A randomized, controlled, single-center, open-label trial was initiated to compare outcomes of BASI or CFE in patients with chronic atherosclerotic occlusive lesions in the CFA. From May 2011 to April 2013, 116 consecutive patients were recruited; after excluding 36 patients, 80 patients (52 men; mean age 72.

View Article and Find Full Text PDF

The management of blunt carotid artery dissections caused by hanging remains controversial, especially with regard to diagnostic work-up and treatment options. We present 2 men, 49 and 41 years of age, who were treated for bilateral common carotid artery dissection caused by strangulation. In the first patient, additional cricotracheal separation and blunt thyroid gland trauma was observed.

View Article and Find Full Text PDF

Objective: Although duplex vein mapping (DVM) of the great saphenous vein (GSV) is common practice, there is no level I evidence for its application. Our prospective randomized trial studied the effect of preoperative DVM in infrainguinal bypass surgery.

Methods: Consecutive patients undergoing primary bypass grafting were prospectively randomized for DVM of the GSV (group A) or no DMV of the GSV (group B) before surgery.

View Article and Find Full Text PDF