Vinicius Adami Vayego Fornazari

• Doctor of Medicine
• Federal University of São Paulo

To evaluate the feasibility, safety, and short-term (3-month) results of transperineal prostate thermal ablation (TPTA) as a minimally invasive outpatient treatment for benign prostatic hyperplasia (BPH). A prospective nonrandomized study of 25 patients with lower urinary tract symptoms secondary to BPH seeking care at 2 interventional radiology ce...

Purpose: This study aims to describe the procedure and assess the safety, feasibility and long-term patency of the ABSinTO technique (a name given to the technique and selected due to the greenish color of infected bile) for the management of benign bilioenteric anastomotic strictures. Materials and Methods: This retrospective, two-center study inc...

Purpose: The present study aimed to describe a novel technique of percutaneous transhepatic (PTH) placement of plastic biliary stents (PBS), report the feasibility and safety of the technique, and present the preliminary results of a pilot study of 32 patients with symptomatic obstructive jaundice (SOJ). Materials and Methods: This was a prospectiv...

Objective: To describe, assess the feasibility of, and quantify the long-term patency achieved with percutaneous transhepatic biliary dilation using the anastomotic biliary stricture (ABS) oversized balloon dilation technique as a single-step procedure for the treatment of benign anastomotic biliary strictures following hepatobiliary surgery. Mat...

Objectives: Arterial embolization of myomas (AEM) is controversial because of the changes that occur in the extracellular matrix (ECM) of the endometrium and its effect on gestational success in infertile patients desiring reproductive capability. Therefore, we performed this study on the expression of genes in the ECM of the endometrium, such as...

Purpose To describe a novel technique of percutaneous transhepatic (PTH) placement of a plastic biliary stent (PBS), report the feasibility and safety of the technique, and present the preliminary results of a pilot study that included 32 patients with symptomatic obstructive jaundice (SOJ) treated with the technique. Materials and methods This wa...

Objective: To identify the main hemorrhagic complications after percutaneous nephrolithotomy, as well as the results obtained with transcatheter arterial embolization (TAE) at an interventional radiology center. Materials and Methods: This was a retrospective analysis of patients undergoing TAE for the treatment of hemorrhagic complications after...

Urothelial carcinoma is a rare malignant neoplasm, accounting for only 5% to 7% of kidney tumors and 5% of urothelial tumors. During the management of urothelial carcinoma, anatomopathological evaluation is used for stratifying the tumors into different prognostic groups to aid in the evaluation of treatment results and to optimize the management o...

Background: Although changes in uterine contractility pattern after uterine fibroid embolization (UFE) has already been assessed by cine magnetic resonance imaging (MRI), their impact on quality of life outcomes has not been evaluated. The purpose of this study was to evaluate the impact of uterine contractility on the quality of life of women und...

Interventional radiology has been constantly developing in terms of the techniques, materials, and methods of intervention. It inter- acts with all areas of medicine, always with the ultimate goal of ensuring the well-being of patients. Advances in imaging techniques, especially in the last two decades, have led to a paradigm shift in the eld of ur...

Abstract Objective: To compare two percutaneous techniques used in the treatment of malignant obstructive uropathy-antegrade double-J stent placement (JJ stenting) and percutaneous nephrostomy-in terms of their cost-effectiveness, from the perspective of the Brazilian public health care system. Materials and Methods: In this cost-effectiveness a...

Resumo Objective: To evaluate the accuracy of percutaneous transhepatic biliary biopsy (PTBB) in patients with suspected biliary obstruction. Materials and methods: This was a retrospective analysis of 18 patients with obstructive jaundice who underwent PTBB. In each patient, three to ten fragments were collected from the lesion. The final diag...

Santi GF, Iunes LR, Tibana TK, Grubert RM, Klaesener C, Fornazari VAV, Nunes TF. Interventional radiology and Brazilian medical students: a survey of knowledge and interests in a public university Rev Med (São Paulo). 2018 nov.-dez.;97(6):515-22. ABSTRACT: Objectives: To evaluate the knowledge of medical students and the interest in interven...

Purpose To assess uterine contractility using ultrafast magnetic resonance imaging (cine MRI) before and after uterine fibroid embolization (UFE). Materials and Methods This is a prospective study of uterine contractility in 26 patients (age 30–41 years) undergoing UFE for symptomatic uterine fibroids. Cine MRI was performed before and 6 months af...

Uterine contractility out of the gestational phase, during the menstrual cycle and the habitual functional variations of the organ, this is one of the responsible mechanisms for reproduction and fertility, due to its direct action in the mechanisms conducting the spermatozoa to the ovule and in the decidual implantation. Pathologies such as uterine...

Objective To evaluate the percutaneous transhepatic approach to the treatment of biliary strictures in pediatric patients undergoing liver transplantation. Materials and Methods This was a retrospective study of data obtained from the medical records, laboratory reports, and imaging examination reports of pediatric liver transplant recipients who...

Objective: The present article is aimed at reporting the author's experience with transcatheter arterial embolization using a lipiodol-ethanol mixture in three cases of unresectable symptomatic giant hepatic hemangiomas. Materials and methods: The cases of three patients with giant unresectable symptomatic hepatic hemangiomas embolized in the pe...

Szejnfeld D et al. / Embolization for hepatic hemangiomas Radiol Bras. 2015 Mai/Jun;48(3):154–157 154 0100-3984 © Colégio Brasileiro de Radiologia e Diagnóstico por Imagem Original Article Transcatheter arterial embolization for unresectable symptomatic giant hepatic hemangiomas: single-center experience using a lipiodol-ethanol mixture * Embolizaç...

The advent of interventional radiology enabled remarkable advances in diagnosis and treatment of several situations in obstetrics and gynecology. In the field of obstetrics, these advances include temporary occlusion of the iliac arteries to the management of placenta accreta and/or prior, arteriovenous fistulas after embolization of uterine curett...

Development of biliary strictures after liver transplantation is not uncommon, and minimally invasive procedures are the first-line treatment of choice in most centers. Hemobilia is an infrequent, usually self-limited complication related to the initial biliary access procedure. Massive hemobilia with severe hemodynamic instability is a rare event,...