Wilms tumor in children: A multivariate analysis of prognostic factors, with emphasis on inferior vena cava/right atrium extension. Results from a single-center study.

Background: To identify prognostic factors for overall survival through the analysis of 132 patients with Wilms tumor followed at a single center, with emphasis on the inferior vena cava/right atrium extension.

Methods: Retrospective analysis of overall survival using logistic regression models and including age, sex, clinical features, associated syndromes, comorbidities, tumor size before chemotherapy, stage, presence of metastatic disease and its site, invasion of adjacent structures, inferior vena cava/right atrium extension, laterality, tumor histology, chemotherapy protocol, and radiotherapy as potential risk factors.

Results: From January 2000 through November 2021, 132 patients met the inclusion criteria, 64 females and 68 males; 15 (11.

Evaluation of Carbon Nanotube Incorporation in Cementitious Composite Materials.

Over the last decades, new materials with outstanding performance have been introduced in the construction industry. Considering these new technologies, it is worth mentioning that nanotechnology has revolutionized various areas of engineering. In the area of civil engineering and construction, cement is used for various purposes and the search to improve its performance has been receiving growing interest within the scientific community.

[Large infectious thoracoabdominal aortic aneurysm in a chronic contained rupture, treated successfully using the "simplified technique"].

The clinical case of a 72-years old male is reported, admitted into a Medical Department through the Emergency Service, with a clinical picture of heavy lumbar pain, with walking compromise and acute urinary retention, lasting for several hours. Laboratory analysis revealed a marked elevation of acute inflammatory parameters and a renal failure, expressed by 108 mg/dl of urea and 4.4 mg/dl of creatinine.

[Infra-inguinal prosthetic graft infection in vascular surgery. A case report and review of the literature].

Prosthetic vascular graft infection is a rare but very severe complication coursing with high morbi-mortality rates. Its treatment requires appropriate surgical procedures combined with adequate antimicrobial treatment in reference centers. The authors report the clinical case of a 71 years old patient, diagnosed with early prosthetic graft infection 3 months after implantation of a femoro-femoral crossover and a prosthetic- popliteal bypass, treated conservatively, with extensive surgical debridement, preservation of the graft and empirical bactericidal broad spectrum antibiotherapy.

[Endovascular femoro-popliteal revascularization in critical limb ischemia: predictive factors for patency].

Objectives: The objective of this study was to evaluate the results of endovascular treatment of the superficial femoral artery and to identify some possible predictors of poor prognosis.

Methods: All patients with femoropopliteal artery occlusive disease submitted to endovascular treatment in the internment section of the first author, between July 2007 to September 2010, were reviewed. Intention to treat analysis was performed.

[Surgical management of a dissecting aneurysm of the thoracic aorta in a patient with Marfan's syndrome - case report].

Marfan's Syndrome is a rare connective tissue disease whose surgical treatment presents several challenges. The existing criteria and recommendations on how and when to surgically approach this disease is almost exclusively confined to the root and ascending aorta, in contrast to the variability of indications on the involvement of the remaining segments of the thoracic and abdominal aorta, due to the multiplicity, morphology and topography of these involvements. This case report is related to a 39 year old woman with Marfan's syndrome, with a type B chronic dissection and a segmentar aneurysm of the proximal descending thoracic aorta with 6,1cm of maximum diameter.

[High output heart failure due to an iatrogenic arteriovenous fistula after cardiac catheterization].

The occurrence of an arteriovenous fistula is a potential complication of cardiac catheterization. Most of these fistulas cause no harm. We report the clinical case of a 70 years old woman with high-output heart failure caused by an arteriovenous fistula (FAV) in the groin.

[The utilization of the "simplified technique" in the simultaneous management of independent thoracic and abdominal aortic aneurysms. A clinical report].

The coexistence of independent aneurysms of the thoracic and abdominal aorta in a single individual, with operative indication has been regarded, since ever, as an enormous challenge to the vascular surgeons and is a source of controversy, regarding the hierarchy, priorities and methods of expeditious management. The authors report the clinical case of a 65 years old male, with a descending thoracic aortic aneurysm, extended to the abdominal visceral vessels, having 6.5 cm of maximum size, together with an infrarenal aortic aneurysm, with 4.

[Leiomyosarcoma of the superficial femoral vein. Case report].

The authors report the clinical case of a 56 years old man who developed a deep venous thrombosis of the left lower extremity, managed conventionally with subcutaneous heparin. Physical examination revealed a large tumor of the middle third, antero lateral view of the left thigh. CT and NMR studies, disclosed an extensive multilobulated tumor along the femoral vessels, with medial deviation of the superficial femoral artery and a surgical biopsy revealed the diagnosis of leiomyosarcoma of the femoral vein, grade 3 of malignancy.

[Fibromuscular dysplasia of the brachial artery, an unusual cause of upper extremities ischemia. A case report and review of the literature].

Fibromuscular dysplasia (FMD) is a noninflammatory, nonatherosclerotic sistemic disease of unknown etiology, primarily affecting muscular arteries of intermediate size. It has been most commonly observed in the renal, carotid, and intracerebral arteries, although it has been reported in other arterial beds. However, being an uncommon disease in general, the manifestation of FMD in the upper extremities is exceedingly rare.

[Recurrent systemic paradoxical embolism: a clinical report].

Paradoxical embolism (EP) occurs when a venous thrombus passes into the arterial circulation, most commonly through an intracardiac shunt. A patent foramen ovale (FOP) is present in 25-35%of people at all ages. It is now possible to detect FOP by contrast echocardiography and it has been shown that there exists quite frequently a spontaneous transient right-to-left shunt during systole and, moreover, a right-to-left shunt during Valsalva maneuver and coughing.

[Inflammatory aneurysms of the abdominal aorta, complicated by hydronephrosis and anuria. Surgical management].

In this paper the clinical condition of two male patients, aged 58 and 65 years are presented, after being admitted as a consequence of a rare complication of an inflammatory aneurysm of the abdominal aorta, which is an ureteral compression, with hydronephrosis, anuria and acute renal failure. After having an urgent haemodialysis session, the etiology of the process was diagnosed by echography and abdominal CT-scans, followed by ureteral catheterization, restoration of diuresis and normalization of renal function. Conventional surgery was performed later, in elective conditions, and the post operative course was normal, without complications.

[Lower limbs revascularization originated in the descending thoracic aorta].

The revascularization of the lower limbs through a bypass graft from the descending thoracic aorta is one of the most uncommon surgical procedures within the scope of the so-called "extra-anatomic revascularization". It is an highly selective procedure in terms of indications and is regarded as an effective hemodynamic alternative, with acceptable long-lasting results. Two patients who underwent successfully the operation are reported, followed by a discussion on the technical aspects, indications, complications and early and late results of the procedure.