Implications of preoperative arterial stiffness for patients treated with endovascular repair of abdominal aortic aneurysms.

Arterial stiffening is associated with adverse cardiovascular patient outcomes; stiffness may also be associated with postsurgical events and has been suggested to be a fundamental mechanism in the pathogenesis of aortic aneurysms. Although open repair of aneurysms decreases aortic stiffness, implantation of a rigid endograft is associated with increased aortic stiffness after endovascular aneurysm repair (EVAR). This review provides an overview of aortic wall physiology and the contemporary understanding of aortic stiffness and its implications for patients undergoing abdominal aortic aneurysm repair.

Numerical analysis of blood flow in a branched modular stent-graft for aneurysms covering all zones of the aortic arch.

Due to the anatomical complexity of the aortic arch for the development of stent-grafts for total repair, this region remains without a validated and routinely used endovascular option. In this work, a modular stent-graft for aneurysms that covers all aortic arch zones, proposed by us and previously structurally evaluated, was evaluated from the point of view of haemodynamics using fluid-structural numerical simulations. Blood was assumed to be non-Newtonian shear-thinning using the Carreau model, and the arterial wall was assumed to be anisotropic hyperelastic using the Holzapfel model.

Brazilian Society of Angiology and Vascular Surgery 2023 guidelines on the diabetic foot.

The diabetic foot interacts with anatomical, vascular, and neurological factors that challenge clinical practice. This study aimed to compile the primary scientific evidence based on a review of the main guidelines, in addition to articles published on the Embase, Lilacs, and PubMed platforms. The European Society of Cardiology system was used to develop recommendation classes and levels of evidence.

Structural numerical analysis of a branched modular stent-graft for aneurysms encompassing all zones of the aortic arch.

The development of stent-grafts for the total repair of aneurysms in the aortic arch is still a technical challenge due mainly to the anatomical complexity of this region. Research performed here structurally evaluated a modular branched stent-graft for aneurysms encompassing all zones of the aortic arch by means of numerical simulations using fluid-structure interaction. The geometric domain obtained by means of computed tomography was subjected to physiological boundary conditions.

Tools and scores for perioperative pulmonary, renal, hepatobiliary, hematological, and surgical site infection risk assessment: an update.

Introduction: perioperative risk assessment is essential to mitigate surgical complications, which suggests individual and collective interest since the number of surgical procedures in Brazil has been expanding steadily. The aim of this study was to summarize and detail the main calculators, indexes and scores regarding perioperative pulmonary, renal, hepatobiliary, hematological and surgical site infection risks for general non-cardiac surgeries, which are dispersed in the literature.

Method: a narrative review was performed based on manuscripts in English and Portuguese found in the electronic databases Pubmed/MEDLINE and EMBASE.

Tools and scores for general and cardiovascular perioperative risk assessment: a narrative review.

The number of surgical procedures in the world is large and in Brazil it has been expressing a growth trend higher than the population growth. In this context, perioperative risk assessment safeguards the optimization of the outcomes sought by the procedures. For this evaluation, anamnesis and physical examination constitute an irreplaceable initial stage which may or may not be followed by complementary exams, interventions for clinical stabilization and application of risk estimation tools.

Intraoperative vascular Doppler ultrasound blood flow and peak systolic velocity predict early patency in hemodialysis arteriovenous fistula.

Background: Chronic kidney disease is a major public health problem. Hemodialysis is the most common renal replacement therapy. Arteriovenous fistulas (AVF) are a possible access option, but early failure rates remain high.

Relationship of the Pelvic-Trochanteric Index with greater trochanteric pain syndrome.

Objectives: This study aimed to correlate a higher Pelvic-Trochanteric Index (PTI) with an increased varus of the femoral neck with greater trochanteric pain syndrome (GTPS). The secondary objective was to check whether the pelvic width changes with age.

Methods: A prospective study was conducted to compare female patients diagnosed with GTPS (case group) with asymptomatic female participants (control group) from March 2011 to June 2017.

Arterial stiffness predicts amputation and death in patients with chronic limb-threatening ischemia.

Objective: Arterial stiffness indices predict cardiovascular outcomes in patients with coronary or kidney disease; however, there is little data on the prognostic value of arterial stiffness in patients with advanced peripheral arterial disease. We determined whether arterial stiffness indices predict the outcomes of major amputation or death in patients with chronic limb-threatening ischemia (CLTI).

Methods: Arterial stiffness was prospectively measured using brachial oscillometry in patients with CLTI.

Impact of multisection and immunohistochemistry in lymph node staging of Gastric Carcinoma - Case series.

Gastric carcinoma (GC) locoregional recurrence may occur even in cases where the tumor has been completely resected, possibly due to lymph node (LN) micrometastases. It is estimated that in 10% to 30% of cases, LN micrometastases are not detected by a conventional method for histological assessment of LN metastases with hematoxylin-eosin (HE). A cross-sectional study assessed 51 patients with GC by histological evaluation of the LN micrometastases through LN multi sectioning associated with immunohistochemistry analysis with monoclonal antibodies AE1 and AE3.

Elastic compression after ultrasound-guided foam sclerotherapy in overweight patients does not improve primary venous hemodynamics outcomes.

Objective: Lower extremity varicose veins have a high prevalence and can be associated with significant morbidity in their more advanced presentations; overweight patients tend to present with more severe clinical symptoms and conventional surgical treatment remains challenging. Although the advent of ultrasound-guided foam sclerotherapy (UGFS) increased the treatment options for these patients, the need for elastic compression after UGFS remains controversial.

Methods: Overweight patients with lower extremity varicose veins secondary to great saphenous vein reflux were treated with UGFS and then randomized to use or no use of a 3-week treatment of elastic compression stockings.

Brachial vein transposition: an alternative to hemodialysis arteriovenous graft.

Background: There is currently a worldwide effort to increase the options for autogenous hemodialysis access.

Objectives: To evaluate patency and complications of brachial vein transposition compared to other autogenous hemodialysis accesses.

Methods: A retrospective evaluation of 43 patients and 45 procedures.

Association Between Critical Limb Ischemia, the Society for Vascular Surgery Wound, Ischemia and Foot Infection (WIfI) Classification System and Arterial Stiffness.

Background: Arterial stiffness analysis has been done to classify cardiovascular risk. The aim of this article is to analyze whether the group of patients with chronic limb-threatening ischemia (CLTI) has higher arterial stiffness indices than controls. The secondary objectives are to assess whether patients with advanced stages of Wound, Ischemia, and foot Infection (WIfI) classification have high levels of arterial stiffness, through multiple linear regressions to analyze whether the ankle-brachial index (ABI) and other variables are predictive of arterial stiffness.

Thoracic endovascular stent graft repair for ascending aortic diseases.

Objectives: We describe the preliminary results of thoracic endovascular aortic repair (TEVAR) in a group of patients with ascending aortic disease from the Global Registry for Endovascular Aortic Treatment (GREAT).

Methods: We identified TEVAR performed for diseases truly originating from the ascending aorta. Between July 2011 and May 2015, 5014 patients were enrolled; six (0.

Hybrid Treatment with Complete Transposition of Supra-Aortic Trunks versus Conventional Surgery for the Treatment of Aortic Arch Aneurysm.

Objective: The disease of the aortic arch is traditionally approached by open surgical repair requiring cardiopulmonary bypass and circulatory arrest. This study performed a retrospective analysis comparing outcomes through primary hybrid patients submitted to aortic arch surgery without cardiopulmonary bypass with patients submitted to conventional open surgery.

Methods: 25 patients submitted to the aortic arch surgery were selected in the period 2003-2012 at the Madre Teresa Hospital in the city of Belo Horizonte, Brazil; 13 of these underwent hybrid technique without cardiopulmonary bypass and 12 underwent conventional open surgery.

General outcomes and risk factors for minor and major amputations in Brazil.

Objectives Major and minor amputations are associated with significant rates of mortality. However, little is known about the impact of unplanned redo-amputation during the same hospitalization on outcomes. The objectives of this study were to identify the risk factors associated with in-hospital mortality after both major and minor amputations as well as the results of unplanned redo-amputation on outcome.

Extracranial carotid stenosis: evidence based review.

Extracranial cerebrovascular disease is one of the most important causes of death and disability worldwide and its treatment is based on clinical and surgical strategies, the latter being performed by conventional or endovascular techniques. The management of stenosis of the carotid bifurcation is mainly aimed at preventing stroke and has been the subject of extensive investigation. The role of clinical treatment has been re-emphasized, but carotid endarterectomy remains the first-line treatment for symptomatic patients with 50% to 99% stenosis and for asymptomatic patients with 60% to 99% stenosis.