Natale Ferreira Gontijo de Amorim

University of Verona | UNIVR · Department of Medicine

Introduction Patients submitted to augmentation mammoplasty are often concerned about the possibility of sagging breasts. Although plastic sur-geons usually respond that this is unlikely, this is not supported by the litera-ture. This study aimed to precisely understand the changes in nipple-areola complex position after breast implantation, especi...

Objective The aim of the current study is to propose a classification based on neck lamellas for the aesthetic variations of the cervical region, considering its unique anatomy and analysing each structure involved (skin, muscle, fat and submandibular gland), in order to make it easier to choose the most appropriate surgical treatment. Method The...

Background Obesity is considered a condition of systemic chronic inflammation. Under this condition, adipose tissue macrophages switch from an M2 (anti-inflammatory) activation pattern to an M1 (proinflammatory) activation pattern. Objective The study aimed to verify the profile of skin macrophage activation after bariatric surgery as well as the r...

Adipose tissue has become one of the most interesting materials in bioengineered tissues of the human body because of its enormous potential to produce regenerative cells and its capacity to provide material for autologous volume replacement. Fat grafting is widely used in plastic surgery, mostly for body contouring and facial rejuvenation. There a...

Background Facial aging is a degenerative process that impairs contour and angle prominences. Rejuvenation is based on tissue replacement, volumization of the atrophic areas, improvement of flaccidity and cutaneous photoaging. Objectives The study aims to apply structural fat grafting to manage volumetric deficits of the face, following a new syst...

Background Breast prostheses could be associated with complications, despite many studies on surgical materials and techniques. The role of surgical drainage in preventing complications on breast prostheses surgery is controversial. Objectives This study aimed to evaluate the role and effectiveness of vacuum drainage in the augmentation mammoplast...

Background: Stem cells from adipose tissue (ADSCs) and platelet-rich plasma (PRP) are innovative modalities that arise due to their regenerative potential. Objective: The aim of this study was to characterize possible histological changes induced by PRP and ADSC therapies in photoaged skin. Methods: A prospective randomized study involving 20...

Background: The first visible change in an aging face and neck is the loss of neck contour, which can be corrected by treating the platysmal bands; however, it remains unclear as to which is the best strategy to approach these bands. The aim of the present study is to verify whether the lateral platysmal bands approaches, before the medial ones, c...

Background: The major intrinsic cause of facial skin degeneration is age, associated with extrinsic factors such as exposure to sun. Its major pathologic causes are degeneration of the elastin matrix, with loss of oxytalan and elaunin fibers in the subepidermal region, and actinic degeneration of elastin fibers that lose their functional propertie...

Autologous fat graft has limitations, especially long-term unpredictability of volume maintenance. The mechanical enrichment of fat graft with adipose-derived stem cells (ADSCs) could guarantee the survival of fat grafts. After decantation, washing, and centrifugation of lipoaspirate, the authors carried out histochemical analysis and flow cytometr...

Introduction The latest research by the International Society of Aesthetic Plastic Surgery (ISAPS) showed that 2,524,115 plastic surgeries were performed in Brazil in 2017. Breast augmentation has been one of the most commonly-performed plastic procedures in Brazil, totaling more than 200,000 surgeries in 2016. The objective is to evaluate the curr...

Background: In previous papers, we demonstrated that the treatment of human photoaged skin with stromal-vascular fraction-enriched fat or expanded adipose-derived stem cells showed a decrease of elastosis and the appearance of new oxytalan elastic fibers in dermis and an increase in the vascular network. The utilization of fat plus platelet-rich p...

Background Unpredictable volume maintenance in the long term is a major limitation of autologous fat grafting. Objectives The authors compared results of autologous lipotransfer to the face with or without enrichment of fat with the stromal vascular fraction (SVF). Methods Thirty patients with asymmetric depletion of facial volume were included i...

In this paper, we present a case of auricular deformity whose surgical correction is difficult, involving scapha-helical unit associated with prominent ear in a 25-year-old female patient. This is an uncommon congenital malformation of the ear, resulting in a flattened, straightened and folded helical rim over the scapha, compromising the helical a...

Background: In a previous study, the authors demonstrated that treatment with expanded adipose-derived stem cells or stromal vascular fraction (SVF)-enriched fat modify the pattern of the dermis in human beings, representing a skin rejuvenation effect. Considering that expanded stem cells require a cell factor, the authors wanted to assess similar...

The regenerative property of fat grafting has been described. However, it is not clear whether the clinical results are attributable to the stem cells or are linked to other components of the adipose tissue. This work is aimed at analysis of the histologic and ultrastructural changes of aged facial skin after injection of fat graft in addition to i...

Transplanted adipose tissue has many applications in regenerative medicine. However, fat grafting yields unpredictable results because the fat that is transferred can suffer variable degrees of fat reabsorption. It is necessary to identify methods and maneuvers to minimize reabsorption rates and provide predictable long-term results. Our study aime...

INTRODUÇÃO: Eventos tromboembólicos causam grande preocupação, em decorrência das altas taxas de morbidade e mortalidade existentes e da possibilidade de apresentação clínica com sintomas escassos e, muitas vezes, inespecíficos. A prevenção é a maneira mais eficaz de lidar com esse tipo de evento, que, uma vez estabelecido, pode levar rapidamente à...

INTRODUÇÃO: Várias vias de acesso foram criadas para a inclusão de implantes na cirurgia de aumento das mamas. Em 1966, Pitanguy descreveu a via de acesso transareolopapilar. O objetivo do presente estudo é avaliar as mamoplastias de aumento realizadas no Instituto Ivo Pitanguy (Rio de Janeiro, RJ, Brasil), nas quais se utilizou a incisão transareo...

Prominent ears are a relatively common and instantly-recognizable condition. Numerous studies have reported psychological distress, emotional trauma, and behavioral problems associated with this deformity in childhood. The multitude of approaches clearly indicates the lack of a definitive technique to correct this issue in all patients. The authors...

Background: The breast augmentation surgery was the most performed in Brazil in 2008. With the evolution of the technique and the quality of the implants, complications have diminished, leading to a more secure procedure. The objective of this study is to assess the profile of patients submitted to implant exchange in the last five years at Ivo Pit...

CONTEXT AND OBJECTIVE: Liquid silicone injection for aesthetic purposes is illegal. Nevertheless it is still used as an aesthetic tool by unprepared professionals. Complications of the procedure are frequent, and can be immediate or late. The most frequent complication is the developing of granulomas. The aim of this study is to analyse all patient...

Introduction: Several access routes were created to include implants in augmentation surgery. In 1966 Pitanguy describes the transareolopapilar incision.Objective: The aim of this study is to evaluate the use of transareolopapilar incision in breast augmentation surgery, in the past 10 years at Ivo Pitanguy's Clinic.Methods: We made a retrospective...

BACKGROUND: The deep vein thrombosis (DVT) and its most dangerous outcome, the pulmonary embolism (PE), are complications of high incidence in hospitalized patients and in those submitted to surgery. OBJECTIVE: This study presents the guideline to prevention of thromboembolism at Ivo Pitanguy Clinic and its incidence before and after the introducti...

Centrifugation is one of the preferred methods of fat processing. Although it has been promoted for nearly three decades to separate adipose tissue components before grafting, there remain many controversies regarding the results obtained with centrifuged adipose tissue. The authors demonstrate the effects of centrifugation on the cellular componen...

In the last decade, controversy has arisen regarding the influence of fat harvesting, processing and injection techniques on adipose tissue graft. The aim of this study is to compare the influence of three widely used fat processing techniques in plastic surgery on the viability and number of adipocytes and mesenchymal stem cells (MSCs) of aspirate...

Aging in the upper face becomes more evident as the eyebrow level descends. Sometimes this may begin at an early age. The senior author has described a limited approach for the treatment of this aesthetic alteration. In selected cases, the juxtapilose incision, placed laterally at the margin of the anterior hairline, allows for the subperiosteal un...

This paper presents a retrospective study of the use of 346 expanders in 132 patients operated at the Ivo Pitanguy Clinic, between the period of 1985 and 2000. The expanders were used in the treatment of burn sequela. In the majority of cases, more than one expander was used at the same time. In 42 patients, repeated tissue expansion was done. The...

Obesity can be defined as a chronic disease in which there is excess of body adiposity, leading to severe secondary health problems. This metabolic pathology shortens life-span and is a main cause of diabetes, atherosclerosis, systemic arterial hypertension, and reduction of pulmonary function, among others. The plastic surgeon is involved with the...

This paper evaluates the use of CO2 laser peeling as an isolated procedure or associated with the 'round lifting' technique for correction of the aging face. This technique, as described by the senior author, allows for the treatment of signs of facial aging while maintaining anatomical structures. The article reviews the philosophy and evolution o...

Background Characteristics of the aging face include not only senescence and flaccidity of the skin, but also sagging of deeper tissues, especially in the fascial and fatty layers. Objective This study was undertaken to evaluate the different surgical approaches to the aging face, specifically the techniques available for correction of the promine...

The approach to a rapidly growing vascular tumor is determined by a number of objective and subjective factors. As a rule, treatment of a hemangioma in an infant is usually delayed, in the expectation that involution will be complete. While most hemangiomas are harmless vascular marks, some may grow to become large, infiltrating masses. Local facto...