Guidelines on deep vein thrombosis of the Brazilian Society of Angiology and Vascular Surgery.

Deep vein thrombosis is one of the main causes of inpatient and outpatient morbidity, both in medical and surgical patients, significantly impacting mortality statistics and requiring prompt diagnosis so that treatment can be initiated immediately. This document was prepared and reviewed by 11 specialists certified by the Brazilian Society of Angiology and Vascular Surgery, who searched the main databases for the best evidence on the diagnostic (physical examination, imaging) and therapeutic approaches (heparin, coumarins, direct oral anticoagulants, fibrinolytics) to the disease.

Brazilian Angiology and Vascular Surgery Society Guidelines for the treatment of extracranial cerebrovascular disease.

Extracranial cerebrovascular disease has been the subject of intense research throughout the world, and is of paramount importance for vascular surgeons. This guideline, written by the Brazilian Society of Angiology and Vascular Surgery (SBACV), supersedes the 2015 guideline. Non-atherosclerotic carotid artery diseases were not included in this document.

Comparison of Splenic Artery Aneurysms in Patients with and without Portal Hypertension.

Background: Splenic artery aneurysms (SAAs) are rare but seem to have higher incidence in patients with portal hypertension (PH). The present article aims to analyze the interference of PH in the natural history of these aneurysms.

Methods: This was a retrospective study of data recorded prospectively.

Impact of the period of the day on all-cause mortality and major cardiovascular complications after arterial vascular surgeries.

Background: Conflicting results are reported about daytime variation on mortality and cardiac outcomes after non-cardiac surgeries. In this cohort study, we evaluate whether the period of the day in which surgeries are performed may influence all-cause mortality and cardiovascular outcomes in patients undergoing non-cardiac arterial vascular procedures.

Methods: 1,267 patients who underwent non-cardiac arterial vascular surgeries between 2012 and 2018 were prospectively included in our cohort and categorized into two groups: morning (7 a.

Rationale and design for the study Apixaban versus ClopidoGRel on a background of aspirin in patient undergoing InfraPoPliteal angioplasty for critical limb ischemia: AGRIPPA trial.

Background: New antithrombotic strategies that reduce primary thrombosis and restenosis might improve vascular outcomes in patients with peripheral artery disease (PAD) undergoing arterial angioplasty. The study objective is to evaluate the potential benefit of apixaban plus aspirin compared with standard of care dual antiplatelet therapy (DAPT) in reducing thrombotic restenosis and artery re-occlusion in patients undergoing endovascular infrapopliteal revascularization.

Study Design: This multicenter, parallel-group, prospective, randomized, open-label, blinded-endpoint adjudication, proof-of-concept, exploratory trial aims to randomize 200 patients 72 hours after successful infrapopliteal angioplasty for critical limb ischemia (CLI).

Endovascular Therapy Provides Similar Results of Bypass Graft Surgery in the Treatment of Infrainguinal Multilevel Arterial Disease in Patients with Chronic Limb-Threatening Ischemia in All GLASS Stages.

Background: Extensive infrainguinal arterial disease still pose a challenge for technical and clinical success of percutaneous angioplasty. The purpose of this study was to compare the results of concomitant femoropopliteal and infrapopliteal percutaneous angioplasty/stenting (PTA/S) with distal bypass graft surgery (BGS) in patients with chronic limb-threatening ischemia (CLTI).

Method: In a single-center retrospective investigation between 2011 and 2017, 668 revascularization procedures for CLTI were reviewed.

Combined Angioplasty Technique of the Carotid Territory and Supra-Aortic Trunk by Double Access (Cervical and Limbs) for Tandem Lesions.

Background: The carotid stent angioplasty (CAS) has been the main option for patients with high cardiovascular risk and carotid stenosis. The common femoral artery is still the most used access site; however, the aortic arch manipulation is a critical moment for cerebral embolization. Carotid transcervical access should be considered as a good alternative access route for CAS.

Long-term Results of Endovascular Treatment of Chronic Type B Aortic Dissection by Closure of the Primary Tear.

Background: The role of thoracic endovascular aortic repair (TEVAR) in the treatment of chronic type B aortic dissection is controversial. Some advocate open surgery, based on the premise that all tears must be treated, and others prefer branched endografts with the same premise. However, TEVAR, with closure of the primary tear in the thorax, has shown good results in some centers.

Medical Therapy for Asymptomatic Patients and Stent Placement for Symptomatic Patients Presenting with Carotid Artery Near-Occlusion with Full Collapse.

Purpose: To report long-term results of stent placement and medical therapy for symptomatic and asymptomatic patients, respectively, with carotid artery near-occlusion with full collapse.

Materials And Methods: Between January 2008 and December 2010, 204 carotid arteries diagnosed by duplex scanning as exhibiting complete occlusion were re-examined with CT angiography; 46 arteries in 46 patients were patent with threadlike lumens and were reclassified as exhibiting near-occlusion with full collapse. Asymptomatic patients (n = 22) received best medical therapy (BMT) alone, and symptomatic patients (n = 24) were referred for carotid artery stent (CAS) placement plus BMT.

Carotid Plaque Morphology in Asymptomatic Patients with and without Metabolic Syndrome.

Background: The aim of this study was to determine the impact of metabolic syndrome (MetS) on the morphology of carotid plaques, as evaluated using duplex ultrasound (DUS) with computer-assisted analysis.

Methods: In this cross-sectional observational study, we analyzed 148 carotid artery plaques in asymptomatic patients. Data were obtained via clinical and laboratory examinations, and DUS was performed by a single operator.

A prospective randomized study comparing polidocanol foam sclerotherapy with surgical treatment of patients with primary chronic venous insufficiency and ulcer.

Background: To compare polidocanol foam sclerotherapy with surgical treatment of patients with primary chronic venous insufficiency and active ulcer treated at a single vascular center.

Methods: Fifty-eight limbs of 56 patients with active ulcers were prospectively randomized to undergo either surgical treatment or foam sclerotherapy. Patients completed the Aberdeen Varicose Veins Questionnaire (AVVQ), the Venous Clinical Severity Score (VCSS), and Venous Disability Score (VDS).

Generic versus branded enoxaparin in prophylaxis and treatment of vein thrombosis.

Objectives: to compare the biological efficacy of generic enoxaparin (HeptronTM) versus branded Sanofi-Aventis enoxaparin for prophylaxis and treatment of lower-extremity deep venous thrombosis (DVT) in a prospective, randomized, open-label study.

Methods: patients with diagnosed lower-extremity DVT (therapeutic branch, n=57) and patients requiring venous thromboembolism (VTE) prophylaxis after arterial vascular surgery or major lower-extremity amputations (prophylactic branch, n=57) were randomized to receive generic or branded enoxaparin for up to seven days. Enoxaparin activity was measured by estimating blood anti-factor Xa levels at the peak plasma concentration.

Comparison between a new computer program and the reference software for gray-scale median analysis of atherosclerotic carotid plaques.

Purpose: To compare a new dedicated software program and Adobe Photoshop for gray-scale median (GSM) analysis of B-mode images of carotid plaques.

Methods: A series of 42 carotid plaques generating ≥50% diameter stenosis was evaluated by a single observer. The best segment for visualization of internal carotid artery plaque was identified on a single longitudinal view and images were recorded in JPEG format.

Carotid stenosis management: a review for the internist.

Stroke is one of the most important causes of mortality and morbidity worldwide and, for a long time, was the leading cause of death in developed countries. Atherothrombotic carotid stenosis is one of the most important etiologies behind this event. If properly recognized and treated, lives can be saved, as well as long-term disabilities prevented.

Obesity is a risk factor for significant carotid atherosclerosis in patients aged 39 to 55 years.

We compared the prevalence of risk factors between young and old individuals with significant carotid atherosclerosis. We retrospectively reviewed the records of patients aged 39 to 55 years (group I) and aged ≥ 60 years (group II) with significant atherosclerotic stenosis at the carotid bifurcation. Group I patients had significantly higher values for the following factors: weight, height, body mass index, diastolic pressure, prevalence of current smoking, total and low-density lipoprotein cholesterol and significant lower values for systolic pressure, creatinine, and prevalence of coronary artery disease.

Technique of aortic replacement through endovascular stenting before aortic wall resection for primary leiomyosarcoma of the abdominal aorta.

Tumors involving the aorta represent a challenging situation because the surgical approach can lead to blood loss and/or clamping-related complications such as ischemia, thrombosis, or reperfusion syndromes. We describe the technique of aortic endograft placement to cover part of the abdominal aorta and provide conditions for extensive aortic wall resection, without clamping or blood loss, followed immediately by aortic reconstruction with bovine pericardium. This technique also allows the surgeon to wait for the results of freeze biopsy without additional clamping time, thus avoiding the risk of leaving residual tumor cells in the aortic wall.

Endovascular treatment of peripheral arterial injury with covered stents: an experimental study in pigs.

Objective: To evaluate the feasibility of using endovascular repair to treat penetrating arterial injuries with covered stents. Feasibility was examined according to the circumferential extent of the injury.

Introduction: Surgical trauma often increases the risk of major morbidity and mortality associated with vascular injury, and endovascular repair has many advantages in such situations.

Outcome analysis of infrapopliteal percutaneous transluminal angioplasty and bypass graft surgery with nonreversed saphenous vein for individuals with critical limb ischemia.

Objective: To compare the results of percutaneous transluminal angioplasty (PTA) and bypass graft surgery (BGS) for the treatment of infrapopliteal lesions in individuals presenting with critical limb ischemia (CLI).

Method: A total of 48 infrapopliteal PTAs and 50 infrapopliteal BGS were compared retrospectively. All grafts used nonreversed saphenous vein in a single length as a substitute.

A duplex scan-based morphologic study of the femoral vein: incidence and patterns of duplication.

The presence of femoral vein (FV) duplicity has potential influence in the misdiagnosis of deep vein thrombosis. Also, FVs are suitable vascular substitutes, especially in the substitution of infected prosthetic grafts. The objective of this study was to describe the prevalence, anatomic patterns and characteristics of FV duplicity in adult individuals by duplex scan examination.

Comparison of common carotid artery intima-media thickness between Brazilian Euro-descendants and Afro-descendants with atherosclerosis risk factors.

Objective: To compare common carotid intima-media thickness (IMT) between the two major Brazilian ethnic groups (those of African descent and those of European descent) among individuals with one or more risk factors for atherosclerotic disease.

Method: Two hundred and six patients with one or more risk factors for atherosclerotic disease were evaluated in a cross-sectional study in which their clinical, ethnic and Demographic characteristics were collected. All patients underwent duplex ultrasound examination of their carotid vessels to obtain IMT measurements.