Omniflow® II biosynthetic graft offers acceptable early and mid-term outcomes in redo surgery in patients with critical limb-threatening ischemia with no available autologous vein material.

Background: In this study, the early and mid-term outcomes of Omniflow II (LeMaitre Vascular, Inc., Burlington, MA, USA) biosynthetic graft in redo surgery in patients with critical limb-threatening ischemia (CLTI) with no available autologous vein material were investigated with the aim to compare the outcomes obtained in "de novo" surgery versus redo surgery.

Methods: From January 2018 until December 2022, data of CLTI patients from 18 centers in Italy with no autologous vein material underwent infrainguinal bypass with Omniflow II biosynthetic graft were collected.

Outcomes of biosynthetic vascular graft for infrainguinal femoro-popliteal and femoro-distal revascularization.

Background: The aim of this study was to retrospectively analyze early and late outcomes of infrainguinal revascularization performed with the Omniflow-II (LeMaitre Vascular, Inc., Burlington, MA, USA) biosynthetic vascular graft (BVG) for complex femoro-popliteal obstructive disease.

Methods: Over a 10-year period, this BVG was used in 110 patients who underwent infrainguinal femoro-popliteal or femoro-distal bypass.

Vascular Surgery During COVID-19 Emergency in Hub Hospitals of Lombardy: Experience on 305 Patients.

Objective: During the most aggressive phase of the COVID-19 outbreak in Italy, the Regional Authority of Lombardy identified a number of hospitals, named Hubs, chosen to serve the whole region for highly specialised cases, including vascular surgery. This study reports the experience of the four Hubs for Vascular Surgery in Lombardy and provides a comparison of in hospital mortality and major adverse events (MAEs) according to COVID-19 testing.

Methods: Data from all patients who were referred to the Vascular Surgery Department of Hubs from 9 March to 28 April 2020 were collected prospectively and analysed.

Acute Lower Limb Ischemia as Clinical Presentation of COVID-19 Infection.

Novel 2019 coronavirus (COVID-19) infection usually causes a respiratory disease that may vary in severity from mild symptoms to severe pneumonia with multiple organ failure. Coagulation abnormalities are frequent, and reports suggest that COVID-19 may predispose to venous and arterial thrombotic complications. We report a case of acute lower limb ischemia and resistance to heparin as the onset of COVID-19 disease, preceding the development of respiratory failure.

Arch and access vessel complications in penetrating aortic ulcer managed with thoracic endovascular aortic repair.

Background: To analyze our experience and to describe access and arch-related challenges when performing thoracic endovascular aortic repair (TEVAR) for penetrating aortic ulcers (PAUs).

Methods: This is a single-center, observational, cohort study. Between October 2003 and February 2019, 48 patients with PAU were identified; 37 (77.

Transposition of the left vertebral artery during endovascular stent-graft repair of the aortic arch.

Objectives: The aim of this study was to present our experience with the management of isolated left vertebral artery during hybrid aortic arch repairs with thoracic endovascular aortic repair completion.

Methods: This is a single-center, observational, cohort study. Between January 2007 and December 2018, 9 patients (4.

Outcome of iliocaval resection and reconstruction for retroperitoneal sarcoma.

Objective: The aim of this study was to investigate the oncologic and surgical outcomes of patients treated with inferior vena cava (IVC) or iliac vein (IV) resection for retroperitoneal sarcoma (RPS). Surgery is the only curative option for patients with primary RPS. The IVC or IV can be directly invaded by RPS or can be the organ of origin of retroperitoneal leiomyosarcoma.

Surgical treatment of aorto-enteric fistulas.

Background: Our series of secondary aorto prosthetic fistulas (PEF) to identify if and how different surgical treatment affect outcome is reviewed.

Methods: Between 1982 and December 1999, in the authors department, 42 patients were investigated for a secondary PEF. Mean age was 65 years: the mean time interval since the primitive aortic procedure was 49 months.

Osteochondroma of the tibia and popliteal artery stenosis.

In our department, an osteochondroma of the tibia in a young girl with intermittent claudication of the right leg was treated. Many instrumental examinations were performed in order to exclude an arterial disorder. As the patient shows signs of arterial compression, an operative procedure to remove the exostosis was performed.

Carotid endarterectomy in an awake patient with contralateral carotid occlusion: influence of selective shunting.

The objectives of this study were to determine whether the presence of a contralateral carotid occlusion increases risk and whether the perioperative results are influenced by a systematic or selective policy of shunting during carotid endarterectomy (CEA) in an awake patient. In a retrospective study we compared patients with and without contralateral carotid occlusion (group I, n = 198 - group II, n = 1068) who required CEA. In 77 patients of group I, a shunt was systematically adopted (subgroup A); in the other 121 patients (subgroup B) and in all patients of group II a selective shunting policy was adopted.

Management of infected peripheral bypass by selective partial graft removal and arterial homograft insertion. Two case reports.

We present two cases of partial graft removal and cryopreserved arterial homograft insertion for treatment of patent axillobifemoral (AXB) polytetrafluoroethylene (PTFE) prosthesis with infection confined only to a part of the graft. In the first patient, infection was confined to the left inguinal site; in the second, there was a cutaneous fistula in the middle prosthetic thoracic tract. Neither patient presented signs of systemic sepsis and radio immunological tests were positive only in a confined tract.

Paraanastomotic aneurysms of the abdominal aorta: a 15-year experience review.

The aim of the study is a retrospective review of clinical presentation and management of paraanastomotic aneurysms of the abdominal aorta (PAAA) surgically treated in our Department. From January 1984 to December 1998, 2183 aortic prosthetic grafts were implanted. During the same period, 24 patients were treated for PAAA, 19 false and five true aneurysms.

Aortic dissection after superior mesenteric artery percutaneous stenting. Case report.

We report an unusual case of aortic dissection after superior mesenteric artery percutaneous stenting. A 44-year-old patient, who suffered from back pain and fever, was diagnosed as having an aortic dissection. Aortic dissection, extending from the aortic arch (just after left subclavian artery origin) to the aortic carrefour, was successfully diagnosed by means of Duplex scan and CT scan examination.

Surgical repair of infected peripheral graft and abdominal aortic aneurysm using arterial homograft.

We report a case of combined surgical repair including lower limb revascularization (below-knee bypass) and abdominal aortic aneurysm repair using cryopreserved arterial homograft. The patient experienced lower limb ischemia due to repeated thrombosis of a long-infected polytetrafluoroethylene (PTFE) graft, and was also shown to have a complicating abdominal aortic aneurysm. Infection was eradicated with total graft excision and intravenous antibiotics.

Popliteal aneurysms: current management and outcome.

Background: Peripheral artery aneurysm is the most common peripheral arterial aneurysm. Clinical pictures, perioperative diagnostic evaluations, surgical treatment and results are described.

Methods: From January 1982 to September 1998, 65 popliteal aneurysms in 48 patients were treated in the Department of Vascular Surgery of Busto Arsizio Hospital.

Salmonella mycotic aneurysms: traditional and "alternative" surgical repair with arterial homograft.

Salmonella infection of the abdominal aorta with formation of mycotic aneurysm is rare, but associated with a high mortality and morbidity. Prompt surgical treatment and selective and prolonged antibiotic therapy are required because of its rapid and impredictable evolution in a short period of time, even if an infectivous etiology is only suspected. Methods of revascularization can be different: the traditional two are in situ or extraanatomic bypass using synthetic graft.

The use of arterial allografts in aortic graft infections. A three year experience on eighteen patients.

Background: We describe our experience in the treatment of aortic graft infections by replacing them with arterial homografts as suggested by the good results recently described.

Methods: Between March 1994 and March 1997 eighteen patients with infections of the aortofemoral bifurcation segments have been treated. All patients underwent a complete explantation of the infected graft and an in situ revascularization with arterial homograft harvested in multiorgan removal.

[Aneurysm of the hepatic artery. Report of a case].

Hepatic artery aneurysms are considered a rare event even though their report in the literature are becoming more and more frequent. A case of a 50-year-old man with common hepatic artery arterial aneurysm is reported. Initially, aspecific upper abdominal symptoms were found, but the great improvement in the diagnosis of vascular disease allows us to recognize this pathology which has a high risk of rupture so that an aggressive treatment is required.

[The use of allografts in the surgical treatment of patients with infected vascular prostheses].

The article is devoted to analysis of surgical treatment of patients with such a dangerous complication as infection of the vascular prosthesis. The authors have performed 25 operations for substituting the infected prostheses for allografts. In 18 patients the infected prostheses were located in the aorto-iliac segment, in 5 patients in the femoro-popliteal segment, 1 patient had it in the aorta, and 1 in the subclavian segment.

The use of bifurcated and not reversed saphenous vein. Report of two cases.

Background: This study was designed to determine the use of bifurcated and not reversed saphenous vein in different cases.

Case Description: We report two cases treated in the department of vascular surgery (Busto Arsizio, Varese, Italy) in which different arterial tracts had to be revascularized at the same time using not reversed autologus greater bifurcated saphenous vein. They are two different clinical situations (infection and very distal revascularization) treated by the same surgical technique.

[Femoro-distal revascularization with the saphenous vein in critical ischemias. An analysis of the results obtained and the criteria for choosing the most appropriate method].

Critical ischemia is a pathology which requires the collaboration of a number of specialists and is often burdened by high morbidity and mortality rates. There are several possible therapeutic solutions, although each has its limits. The authors present a series of operated cases and compare the results of two different but alternative surgical methods (in situ and reversed saphena by-pass) depending on the patient's conditions.

Cytogenetic analysis reveals clonal proliferation of smooth muscle cells in atherosclerotic plaques.

Cytogenetic analysis of primary cell cultures from human atherosclerotic fibrous plaques revealed clonal chromosome abnormalities in 13 of the 18 cases studied. Loss of the Y chromosome and del(13)(q14) were present as single clonal abnormalities in eight cases; in five cases separate clones were found involving loss of the Y and a XXY karyotype, trisomy 10 and 18, loss of the Y and trisomy 7. A variety of single numerical and structural abnormalities were present in all but two of the 18 cases.