Prezados Colegas, A abordagem multidisciplinar do câncer tem sido considerada um dos maiores avanços no tratamento oncológico e seus benefícios aos pacientes estão fartamente documentados na literatura científica. Além disso, acompanhar a grande quantidade e velocidade de informação criada atualmente na área de Oncologia, torna-se uma tarefa cada vez mais...
COMPARISON BETWEEN MEASURED AND CALCULATED DOSE WITH IPLAN PENCIL BEAM ALGORITIMS AND ECPLIPSE AAA FOR SMALL FIELDS USED IN FRACTIONED STEREOTAXIA RADIOTHERAPY
Radiosurgery is indicated for the treatment of small intracranial lesions with small radiation fields. International Commission on Radiation Units and Measures (ICRU) No. 91 cites recent incidents that relate to small field dosimetry. The objective of this study is to experimentally compare dose delivery for small field planning calculated by...
Being considered by many as inevitable, commonly radiodermatitis is treated empirically or untreated. Thus, the objective of this study was to identify and analyze the available evidence for radiodermatitis prevention and treatment in order to improve the standardization of nursing care and assistance to the population. Methodology: This is an...
Introduction: ANVISA gives a high priority to making sure that patients receive irradiated blood, during blood transfusion, in order to prevent Transfusion- Associated Graft-Versus-Host Disease (TA-GVHD). Such a fatal immune complication in 90% of cases is caused when T lymphocytes, found in red blood cell and platelet concentrate, begin to...
Introdução: A radioterapia é um dos tratamentos oncológicos e pode ser definida como um método capaz de destruir células, empregando-se feixes de radiação ionizante. A irradiação pode ser aplicada à distância (teleterapia) ou diretamente no tumor (braquiterapia) (ALMEIDA, PEREIRA, OLIVEIRA, 2008). Na braquiterapia com alta taxa de dose (HDR), faz-se...
Introduction: After an instalation of a radiotherapy machine, physicists need to perform some procedures known as commissioning test. To become available to be used in a IMRT planning system, these results need to be fited through a process called modelling. This step ends when the difference between modellings and direct...
Introduction: Radiotherapy, one of the modalities for cancer treatment, uses ionizing radiation, which can cause some adverse effects, especially on irradiated skin, which may remain for three months until years after the end of treatment. In this sense, during the nursing consultation, care should be given to minimize these late...
Introduction: The nursing team plays a fundamental role in the overall care of patients. In radiotherapy, among several attributions, the nurse plays a very important role in guiding the toxicities that patients may present. Therefore, this article presents the strategies used for the formulation of guidelines. patient guidelines that will...
Introduction: In Brazil, the estimate for the 2018-2019 biennium points to the occurrence of 59,700 new cases of breast cancer each year. Among the therapeutic resources used to treat the disease, external radiotherapy is the modality that uses high technology through beams of ionizing radiation produced by linear accelerator, in...
Introduction: Radiodermatitis is a common side effect in câncer patients undergoing radioterapy, whose onset and intensity is associate of several risk factors related to the person or treatment. These reactions may affect the therapeutic schedule and the quality of life of patients. Objective: To identify the available evidence in literature...
Temática: o trabalho trata-se da atuação do enfermeiro no setor de radioterapia. Objetivo: Identificar na literatura a atuação do enfermeiro no setor de radioterapia. Método: Trata-se de um trabalho de revisão bibliográfica narrativa. Para o levantamento dos artigos, foram utilizadas as bases de dados BVS, SCIELO, LILACS e BDENF. Após...
Case report: A 28-year-old male patient presented persistent diarrhea. Clinical investigation revealed tumoral images in the liver, pancreas, bones, and retroperitoneum, suggesting neoplastic involvement. Biopsy of the liver was performed, showing a highgrade neuroendocrine tumor (NET). During the systemic treatment based on chemotherapy, the patient developed severe ocular pain, refractory...
Introdução: Com a técnica de tratamento de Arcoterapia Volumétrica Modulada (VMAT), uma grande parcela da dose é entregue nas incidências posteriores, provocando interesse no efeito que a mesa e seus trilhos tem na dose entregue ao paciente, efeitos esses que são uma combinação do aumento de dose na pele, de...
Introduction: Radiotherapy is a locoregional treatment modality that can be used exclusively or concomitantly with other treatment modalities. Radiotherapy can cause several side effects, one of the most common being radiodermatitis. Radiodermatitis is an acute skin reaction characterized by a set of external and internal lesions caused by exposure to...
The most common type of cancer among women is breast cancer. Due to the anatomical position of the breast, radiotherapy may cause side effects to adjacent normal tissues, especially the heart. The severity of radiation-induced toxicity is closely linked to volume and dose of radiation received by cardiac tissue and...
Patients presenting neoplastic wounds during radiotherapy treatment on private hospital at Sao Paulo City. Patient A, an 70 years old patient was diagnosed with stage II squamous cell carcinoma (SCC) of the scalp in December of 2018. 35 sessions of Radiotherapy of head was indicated. Patient completed 30 sessions between...
A radioterapia estereotáxica extracraniana, do inglês, Stereotactic Body Radiotherapy (SBRT) tornou-se um padrão para o tratamento do câncer de pulmão de não pequenas células inoperável em estágio inicial, demonstrando altas taxas de controle local e toxicidade limitada para os pacientes. Esta técnica caracteriza-se pela entrega de uma alta dose de...
The Optically Stimulated Luminescence (OSL) technique is widely applied in various areas for ionizing radiation dosimetry such as dating and health. Its main advantage over the thermoluminescence (TL) technique is the optical nature of the process; For dose-associated luminescent emission, optical rather than thermal stimulation is employed, leading to rapid...
TIME DELAY EVALUATION AND DOSE REPRODUCIBILITY USING THE VARIAN BREATHING PHANTOM WITH DIFFERENT GATING INTERVALS FROM THE TRUEBEAM STX LINEAR ACCELERATOR
In current radiotherapy the tendency to hypofraction brings the need to increase treatment accuracy and use imaging methods to localize the treatment region. One approach to increasing treatment accuracy is to consider intrafraction movements. The present work analyzes the Time Delay which would be the time between the system detecting...
STEREOTACTIC BODY RADIATION THERAPY (SBRT) FOR CLINICALLY INOPERABLE EARLY STAGE NON SMALL CELL LUNG CANCER (NSCLC). RETROSPECTIVE ANALYSIS OF OUTCOMES AND RADIATION DOSE EFFETIVENESS
Purpose: SBRT has been considered as standard treatment for early stage clinically inoperable NSCLC. Some retrospective series showed better local control with Biologic Efective Dose (BED) ≥ 100 Gy10. This retrospective series aims to report the uni Institutional clinical results with SBRT using two fractionation schedules. Methods: Retrospective analysis of...
Purpose: To compare the efficacy in terms of local control (LC) and survival (OS) of intensity modulate radiotherapy (IMRT) with conventional (2D) or conformational (3D) radiotherapy for nasopharyngeal cancer from endemic or non-endemic area. Materials and Methods: Records of patients from our institutional database were retrospectively assessed. A paired comparison...
Objective: To evaluate if there is a relationship between radiotherapy dose and response to bleeding in palliative patients with local relapse or disease progression in gastric cancer. Methodology: It was conducted a systematic meta-analysis review of observational studies evaluating bleeding response in a gastric cancer (GC) patient with local relapse...
Objectives: To evaluate positioning uncertainty and PTV margins in the treatment of prostate cancer with and without the use of a pelvic immobilizing device. Methods and Materials: The clinical trial evaluated 127 patients with prostate cancer treated with Image Guided (EPID) Intensity Modulated Radiation Therapy. Patients were split in two...
Objectives: To evaluate the reproducibility of the use of a personalized neck support cushion for Head and Neck patients under Image Guided (EPID) Intensity Modulated Radiation Therapy. Methods and Materials: Positioning variations of 64 Head and Neck patients were acquired from comparison between Digitally Reconstructed Radiographs (DRR) and Portal images....
Objective: This study aims to analyze radiotherapy fractionation at Hospital Erasto Gaertner regarding skin lesions, toxicity, and compliance. Material and Methods: The study was the retrospective analysis of data from patients submitted to radiotherapy for malignant neoplasm of skin and benign lesions. From 2015 to 2019, there were 687 radiotherapy...
Introduction: Conformational radiotherapy planning is performed in pre-defined volumes. According to ICRU (International Commission on Radiation Units and Measurements), volumes are defined as GTV (Gross Tumor Volume) - the visible extent of the tumor; Clinical Target Volume (CTV) - margin comprising GTV, a region where subclinical involvement usually exists; and...
Lung SBRT is a highly complex procedure consisting of delivering high doses in a few fractions in a small volume. For safe treatment using SBRT, process quality management becomes necessary. A quality management tool is Failure Mode and Effect Analysis (FMEA), for the purpose to prevent error by creating barriers...
Apresentação do caso: trabalho aprovado pelo Comitê de Ética em Pesquisa sob parecer nº 3.109.023. Paciente do sexo feminino, 19 anos, boliviana, submetida a cirurgia de glossectomia total, com esvaziamento cervical bilateral de nível I ao IV e reconstrução com retalho microcirúrgico de músculo antero-lateral da coxa, precisou fazer uso...
Introdução: A radioterapia é uma abordagem terapêutica utilizada no tratamento de neoplasias malignas. Esta por sua vez, pode acarretar nos mais variados efeitos colaterais, dependendo da localização e do estágio do tumor, o que afeta diretamente na qualidade de vida dos pacientes em tratamento. Objetivo: relatar a atuação da equipe...
Apresentação do Caso: Paciente do sexo masculino, 38 anos, portador de sarcoma epitelioide de partes moles em região pubiana, diagnosticado em agosto de 2008. Até a presente data, apresentou três recidivas, com retirada do testículo esquerdo em 2014. Ao todo, realizou sete procedimentos cirúrgicos, dois tratamentos radioterápicos e um tratamento...
Apresentação do caso: Estudo de caso de paciente em atendimento no ambulatório de radioterapia de um CACON da cidade de Porto Alegre. Sexo masculino, 53 anos, diagnosticado com cordoma sacral e submetido a sacrectomia, retossigmoidectomia, colostomia terminal e reconstrução com retalho miocutâneo com reto abdominal. Em seguimento, apresentou recidiva tumoral...
Apresentação do caso: Paciente do sexo masculino, 3 anos e 10 meses de idade, encaminhado ao Serviço de Oncopediatria de um hospital referência na cidade de Porto Alegre para investigação de marcha atáxica e de ptose à direita com apresentação subaguda. Realizada ressonância nuclear magnética (RNM), que apresentava lesão expansiva...
Estima-se que no ano de 2018 ocorreram cerca de 60 mil novos casos de câncer de mama no Brasil, sendo o segundo câncer mais frequente na região Sul. Devido à alta incidência, torna-se cada vez mais importante conhecer os vários aspectos relacionados a esta doença. A radioterapia é um dos...
Introduction: Treatments using Intensity-Modulation techniques (IMRT) will become the common form of Radiotherapy planning soon. Thus, a patient-specific quality assurance (QA) routine is going to be necessary given the complexity of the plans. The usual QA methods are the Gamma index passing rate (using either a matrix of detectors or...
A irradiação do crânio é utilizada no tratamento de tumores primários e lesões metastáticas cerebrais. Os planejamentos tridimensionais com técnica conformada ou intensidade de dose modulada e radiocirurgia podem ser indicados para o tratamento. Para o planejamento a moldagem do crânio precede a tomografia e garante a imobilização e a...
O número crescente da incidência de câncer infantil traz cada vez mais a necessidade de reduzir os traumas causados pelo tratamento. Tornando-se necessário o desenvolvimento de estratégias e ferramentas que aprimorem esta atenção, levando à criação e ao desenvolvimento de atividades e de unidades especializadas em radioterapia oncológica pediátrica. O...
A radioterapia é indicada em mulheres com câncer de mama após cirurgia conservadora no intuito de reduzir a recidiva loco-regional. A radiodermite é o principal efeito colateral na mama irradiada e pode ser fator limitante para a continuidade das aplicações. Atribui-se a severidade das reações de pele a fatores relacionados...
The Radiotherapy consists in a clinical mode, in which it is used ionizing radiation for the purpose of treating cancer. Among the adverse effects arising from treatment, it highlights the radiodermatitis, a skin reaction which is characterized by hyperemia, hypersensitivity, swelling, pain, itching or scaling. According to the side effect,...
No ano de 2018, estima-se que ocorreram cerca de 60 mil novos casos de câncer de mama no Brasil, sendo o segundo câncer mais frequente na região Sul. Devido à alta incidência, torna-se cada vez mais importante conhecer os vários aspectos relacionados a esta doença. A radioterapia é um dos...
Cervical cancer is the 4th most prevalent cancer in women worldwide. Brachytherapy alone, or combined with teletherapy is a standard treatment modality for this kind of cancer. Several gynecological applicators, such as ring and intrauterine tube, can be used for treatment delivery, resulting in a pear-shaped dose distribution. Although this...
This paper aims to establish a method for simultaneous evaluation of different IGRT systems present in TrueBeam STx / Edge. Thus, Surface Guidance methods (OSMS), Cone Beam CT (CBCT), Planar Images MV-KV and Calypso are tested and compared on a single phantom, allowing the determination of positioning accuracy relative to...
Patients undergoing outpatient radiotherapy need support to manage the toxicities that affect their well-being. The nurse plays a fundamental role in education and support to patients undergoing radiotherapy, but the impact of care is still poorly reported. Remote assistance, through telecommunication, allows proximity to the patients when they are geographically...
IIMPLEMENTATION OF THE HOST SERVICE IN THE A.C. CAMARGO CANCER CENTER RADIOTHERAPY DEPARTMENT AND THE REPERCUSSION ON THE PATIENT‘S THERAPEUTIC JOURNEY
The patient diagnosed with cancer begins the treatment process under the guidance of a specialist and support from a multidisciplinary team. At this early stage, imaging and laboratory examinations, as well as evaluation by other specialists, are often required to complement disease staging (tumor extension and organ and tissue involvement)....
Introduction: Misalignment between the face and the supraclavicular fossa is usual in head and neck radiotherapy when common thermoplastic masks are used. Since this sort of masks does not provide proper immobilization of the thoracic region, to reproduce the patient position acquired during the CT simulation is a challenging task....
Introdução: A Organização Mundial da Saúde estima que haverá 18,7 milhões de novos casos diagnosticados com câncer por ano no mundo, sendo 9,6 milhões de morte. A incidência cumulativa mundialmente, aponta que 1/5 dos homens e 1/6 das mulheres irão desenvolver câncer ao longo da vida, sendo que 1/8 homens...
Introduction Among primary malignant intraocular tumors, uveal melanoma is the most common in adults. It arises from uveal tract melanocytes and most commonly affects the choroid, a vascular layer of the eyeball wall that lies between the white part of the eye (sclera) and the retina (visual membrane). Choroid melanoma...
Introdução: A irradiação de crânio total (WBRT) é proposta para o tratamento de múltiplas lesões cerebrais, proporcionando paliação rápida com melhora na sobrevida livre de doença e qualidade de vida. Esta conduta pode resultar em toxicidade cognitiva, especialmente funções associadas às atividades do hipocampo, como memória recente e orientação espacial....
Introduction: Scalp skin malignancies usually have poorly defined borders and multifocal dissemination. Extensive basal cell carcinomas, especially the desmoplastic and angiosarcoma subtypes are the most frequent etiologies. Extensive dissemination in this topography present a challenge in planning, due to their convex surface and adjacent organs at risk (OAR). Available modalities...
Angiosarcoma is a rare and aggressive subtype of vascular sarcoma that affects the head and neck region in more than half of the cases especially the scalp. The case report referred to a 78-yearold male patient diagnosed with scalp epithelioid angiosarcoma with scattered lesions. When diagnosing treatment with systemic chemotherapy...
Introduction: With the evolution of technologies for cancer treatment planning, the demand for quality control methodologies that provide three-dimensional information for dose distribution measurements also increased. In this context, gel dosimeters combined with an imaging technique are of great interest because they can perform three-dimensional dosimetry of the entire volume...
Introdução: A radioterapia é muito usada no tratamento de neoplasias malignas e, embora possibilite a cura para diversos cânceres em estágios iniciais, ela também possui efeitos adversos de curto, médio e longo prazo. Tais efeitos são os sintomas que afetam a qualidade de vida do paciente de forma significativa e...
DOSIMETRIC EVALUATION IN RADIOTHERAPY PLANS FOR TREATMENT OF LEFT BREAST CANCER WITH THREE-DIMENSIONAL TECHNIQUE CONFORMED TO FREE BREATHING AND MODERATE DEEP INSPIRATION (DIBH) WITH ACTIVE BREATHING COORDINATING SYSTEM
Currently the standard treatment for early stages in breast cancer is to combine surgery and adjuvant external radiotherapy. The function of breast irradiation is to consolidate the treatment, avoiding relapses or metastases. However, its benefits may present longterm risks and complications. Recent studies have shown increased cardiac and pulmonary complications...
Introdução: Entre as formas de tratamento do câncer está a radioterapia que se configura como uma das principais modalidades terapêuticas, usada em aproximadamente 60% dos casos. Entretanto, traz alguns efeitos adversos, que podem ocorrer independente da área de tratamento, como a fadiga. Apesar da alta prevalência de fadiga entre os...
Esophageal cancer has a high incidence in several regions of the country. Nevertheless, we observe the difficulty in performing the necessary staging exams and the lack of clinical data, particularly in services from the Public Health System. This study aims to evaluate the absence of clinical information and staging exams...
The patient record contains information about the prescription, fractionation and execution of the entire treatment. Some accidental occurrences may occur due to the absence of prescribing protocols in the treatment plan as well as in the absence of relevant information in the data sheet. In order to consider some procedures...
The Clarity system is an IGRT system that uses ultrasound imaging to locate the target before starting treatment. The objectives of this work were: to implement an END TO END quality control (QC) for the Clarity IGRT system that does not depend on the characterization of the phantom provided by...
The dose calculation algorithms used in radiotherapy use a calibration curve to convert HU (Hounsfield Unit) to mass and electronic density, making it possible to differentiate tissues in interaction with the beam. The maximum HU value for normal CT image acquisitions is 3071, which is the value reached for all...
Dose calculation algorithms differ in their calculation methods and are relevant in radiotherapy planning. In this work, three algorithms were used: Monte Carlo (MC), which uses computational models to simulate the interactions of particles with the matter, and were considered as the gold standard; AAA, which is a superposition /...
DESENVOLVIMENTO DE UM DOSÍMETRO TRIDIMENSIONAL A PARTIR DO POLÍMERO BIODEGRADÁVEL PBAT((BUTILENO ADIPATOCO- TEREFTALATO ) PARA CONTROLE DE QUALIDADE E VERIFICAÇÃO DE TRATAMENTOS RADIOTERÁPICOS
A tecnologia associada aos tratamentos radioterápicos tem crescido aceleradamente nas últimas décadas, contribuindo para a oferta de serviços clínicos cada vez mais eficientes e seguros. Nesse sentido, a construção de ferramentais dosimétricos adequados para cada contexto está no bojo deste desenvolvimento. Seja para a aceitação de uma técnica, seja para...
Introdução: A radioterapia é uma modalidade terapêutica que representa um recurso bem estabelecido para o tratamento de doenças malignas ou não. É capaz de destruir células tumorais, empregando feixes de radiações ionizantes. Nos serviços de radioterapia o uso da radiação para fins médicos acaba sendo um risco se não aplicada...
Introduction: Conservative treatment of locoregionally advanced squamous carcinoma of the larynx and hypopharynx (LRASCLH) with chemoradiotherapy protocols is an option aimed at preserving the function of the larynx. However, this may also lead to the need of a laryngectomy or functional sequelae in the preserved larynx. Objective: To evaluate the...
Radiotherapy is an area that is primarily dealt with using clinical protocols as well as delivering high doses of radiation for therapy. To check the dose that the patient actually receives in radiotherapy treatments, in vivo dosimetric techniques are used to evaluate the doses being delivered using specific dosimeters for...
Introduction: Globally, apart from non-melanoma skin cancers, breast cancer is the most common and common type of malignant tumor among women and it is estimated that almost 60,000 new cases are diagnosed each year in Brazil. Breast hypofractionation is already recommended by the Brazilian Society of Radiotherapy as a safe...
Introduction: Head and neck cancer represents about 10% of malignant tumors. Most treatment protocols include radiotherapy at some point, and in some cases radiotherapy is performed in conjunction with chemotherapy. Patients undergoing head and neck radiotherapy often have significant acute toxicities that may lead to treatment interruption, a factor that...
Introduction: The PERTAIN study is a multicenter, international study, coordinated by the International Atomic Energy Agency (IAEA), still in progress. The primary objective of the study was to assess the impact on 2-year survival of patients with stage III non-small cell lung cancer (NSCLC) using 18F-FDG PET-CT in radiotherapy planning....
Introduction: Technological advances in radiotherapy allow treatments with higher doses in the target volumes and saving more healthy tissues, which proves to be efficient for central nervous system disease control. The use of VMAT with mMLC for the treatment of metastases makes the procedure faster and ensures greater reproducibility. Objective:...
Introduction: Managing esophageal cancer patients is still a major challenge. Delay in starting esophageal cancer treatment is an uncertain topic. In our study, we proposed an evaluation of the influence of delayed initiation of treatment in esophageal cancer patients undergoing definitive chemoradiotherapy. Methods: We conducted a retrospective study of esophageal...
Summary: The cervix cancer is the third most frequent female cancer in the world. In many developing countries it takes the first place in global incidence (SALVAJOLI; ET ALL, 2013). The cancer diagnosis and all the process of the disease are experienced by the cancer patient and their family as...
Purpose: Cranial SRS uses non-coplanar fixed IMRT beams or arc to reach clinically acceptable radiosurgery plans. Elements cranial SRS software uses a 4Pi optimization algorithm and clinical Protocols for couch angle selection, start /stop gantry angle and trajectory optimization. The objective of this work was to evaluate the initial experience...
Many prognostic factors may directly or indirectly affect local cancer control, including discontinuation of radiotherapy treatment, which is an independent and significant factor primarily in the management of lung and head and neck cancer. Interruptions are always consequences of unwanted incidents that may compromise the likelihood of tumor control, are...
Introduction: One of the activities of nurses in radiotherapy is the educational actions aimed at patients and their families. All care and prevention of diseases are mapped and discussed during the nursing consultation, which will be repeated during treatment course according to established protocols, as well as identified individualized needs....
Introduction: The TRS-483/IAEA publication purposes a new method for dosimetry in small field irradiation (SF). Nevertheless, we observe a lack of recommendations in quality assurance (QA) protocols of SF, usually used in stereotactic radiosurgery (SRS). We proposed a QA methodology for SF dosimetry comparing measured dose with calculated dose in...
Case report: A 74-year-old man started an investigation for epistaxis, nasal obstruction, and left facial pain. A sinus computed tomography (CT) scan showed an expansive lesion affecting the entire left nasal cavity to the base of the skull. The patient underwent biopsy of the lesion, whose anatomopathological and immunohistochemical study...
Introduction: Metastatic brain tumors outnumber the primary tumors by 10: 1. The best survival rate of brain metastases is represented by female gender, good performance status (PS), primary breast cancer, time between diagnosis of primary tumor and development of brain metastases greater than six months and single lesion. Objectives: To...
Introduction: The success of cancer treatment requires patient adherence and easy access to the treatment center. Intraoperative radiotherapy (IORT) reduce the duration of treatment, to a single dose during surgery, and IORT with eletrons or with the Intrabeam ®, can be, indicated for selected women diagnosed with early stage breast...
Introduction: The pancreas presents itself as a highly complex organ for ionizing radiation treatment for several reasons. It is an organ anatomically adjacent to multiple radiation sensitive organs, like the kidneys, liver, stomach, small intestine and duodenum. Thus, for a successful treatment, the dose of ionizing radiation must be delivered...
Introduction: The radiotherapy has an important role in locoregional and distant control of the neoplasia, increasing the disease-free and overall survival rates. However, the radiodermatitis (RD) is an adverse effect with high incidence in this treatment. Objective: To evaluate the incidence of RD in women with breast cancer, identify the...
The HBDF (Hospital de Base do Distrito Federal) Radiation Oncology Department is currently being updated and expanded. Telecobalt decommissioned in 2018, with the last cobalt source removed on 04/24/2019. The update of the SUS (Sistema Único de Saúde) tariff model in May / 2019 took effect. Upgrade of the current...
WAITING TIME FOR THE BEGINNING OF BRAQUITERAPIA AND SURVIVAL IN FIVE YEARS OF WOMEN WITH CERVIX CANCER TREATED AT A RIO DE JANEIRO ONCOLOGICAL REFERENCE CENTER IN 2012
Introduction: Cervical cancer is a curable public health problem, especially with early diagnosis and immediate treatment. In Brazil, it is still very prevalent and has a high mortality rate, usually due to late diagnosis and difficulty in accessing therapies. Delay in starting brachytherapy (BT) further increases the total treatment time....
Background: Despite the twenty-first century, NSCLC remains the leading cause of cancer related deaths in a great variety of nations around the globe. However, the scenario has changed dramatically in the past 5 years. Immunotherapy features have opened a gigantic range of combinations now possible towards a better suited treatment...
Introduction: Bleeding is a common cancer emergency in patients with locally advanced and / or metastatic cancer. Management of this condition involves hemostatic radiotherapy (HRT) and nursing interventions. Goal: To describe a case of HRT hemorrhagic cancer wound treatment and nursing interventions. Method: Data were obtained through anamnesis and physical...
Ao longo da história da Radioterapia, a preocupação com a proteção radiológica de estruturas sadias tem levado ao desenvolvimento de técnicas e dispositivos que promovam uma entrega de dose cada vez mais acurada e precisa sobre a região de tratamento, de modo a diminuir toxicidades. Porém, os métodos de imagem,...
Introduction: Curvelo is a Brazilian municipality in the interior of the state of Minas Gerais, southeastern region of the country. It is located in the central region of Minas Gerais, occupies the 14th place in the ranking of the 50 Brazilian small cities with the best economic development. On March...
Introduction Humanization, expressed in fragmented actions and in the vagueness and fragility of the concept, sees its meanings linked to voluntarism, assistentialism, paternalism or even the technicality of a management based on administrative rationality and total quality. The debate on the subject of humanization in the health field was driven...
Introduction: The Ministry of Health, through Ordinance No. 931 of May 10, 2012, instituted the Plan of Expansion of Radiotherapy in SUS, with the objective of articulating projects for expansion and qualification of hospitals qualified in oncology, in line with regional demands. oncological assistance and the technological demands of the...
Case presentation: A 44-year-old patient presented with metrorrhagia. On specular examination, a polyp lesion was observed, measuring about 4cm, deflecting the cervix to the left and reaching the middle third of the vagina. There was also involvement of the left parametrium. Pathological examination showed nonspecific subacutecervicitis. She underwent4biopsies that showed...
Introduction: Vestibular schwannomas (VS) are benign intracranial tumors arising from the vestibular division of the VIII cranial nerve. Several treatment options are currently used, such as, observation, stereotactic radiosurgery (SRS), conventional fractionated radiotherapy (CFRT), and microsurgery (MS). Due the complex anatomy of the cerebellopontine angle, surgical treatment of the VSs...
Purpose: Post-insertion computed tomography (CT) can identify air gaps (AGs) around the cylinder in vaginal cuff brachytherapy (VCB). This study investigates the incidence and location of AGs. METHOD I) Planning CTs of 22 prospectively-recruited patients (NCT02091050) treated with 2.6 cm (n=8) and 3.0 cm (n=14) cylinders were evaluated. II) Additionally,...
Introduction: Radiotherapy is a locoregional treatment modality, that has the purpose of cure, remission, prophylaxis or palliation, being indicated exclusively or associated with other cancer treatment modalities, being one of the main treatment alternatives in malignant tumors. Radiotherapy conventional fractionation depends on the protocol type and presents daily sessions. This...
ConCordoma é uma neoplasia rara decorrente de remanescentes celulares da notocorda. No Brasil, a maioria dos cirurgiões considera a cirurgia agressiva como a única opção de tratamento curativo. Os pacientes geralmente são encaminhados para Radioterapia (RT) com intenção paliativa. Objetivo: Relatar o controle local (LC) e sobrevida de pacientes com...
Introdução: O diagnóstico e o tratamento dos meningiomas da bainha do nervo óptico (MNO) são desafiadores, sendo frequentemente retardados o que pode causar perda visual para muitos dos pacientes acometidos por esta condição. A indicação de radioterapia neste contexto é desconhecida para a maioria dos médicos, o que leva à...
Intraoperative radiation therapy (IORT) is a technique whose goal is to deliver the prescribed dose in a single fraction during surgical procedure. Intrabeam equipment, dedicated to IORT, conforms the dose distribution, generated from your low energy x-ray beam, to treatment site through applicators. The change in the dose distribution caused...
The Linear-Quadratic model (LQ) is widely used to study cell response to radiation dose and to predict clinal results in radiotherapy. The LQ model uses alpha and beta parameters to assess radiossensitivity of tissues, being a simplified model in its classical formulation. The dose-rate effect in cell response is decribed...
Case report: A 60-year-old male patient, BMI = 27.7 kg / m2, complaining of right breast lump at self-examination. There was no family history of breast cancer, solid organ tumors or previous use of hormonal medication. Right retroareolar nodule measuring 18 x 18 x 10 mm and right axillar lymph...
Background: Risk adapted treatment guided by risk group stratification have been broadly accepted to treated prostate cancer (PCa). We developed an Artificial Neural Network (ANN) to refine the risk stratification group from NCCN in patients with PCa treated with radiotherapy (RT). Methods: We used information on 485 patients with PCa...
Introduction: Cervical cancer is a public health problem that affects many women worldwide. Radiotherapy is a modality of choice for the treatment of this neoplasia, which is reinforced by brachytherapy. Pre- and post-treatment guidelines are required for therapy. Audiovisual resources and written materials offer techniques for demystifying fear of treatment...
Introduction: Radiodermatitis is one of the most common adverse effects of radiotherapy, and is defined as a set of skin lesions, which manifests itself within a few days or weeks after starting this treatment. Among skin care, guidance in the nursing consultation on the use of an appropriate soap may...
Introduction: one of the main challenges in VMAT craniospinal quality assurance (QA) patients is to be able to evaluate the full extention of the irradiated target volume. Regardless of the technique used in the planning, conventional approaches for dosimetric analysis are limited to the field junction regions and, in general,...
Objective: To evaluate the efficacy of SBRT in oligometastatic recurrent prostate cancer (CaP), aiming to study the existence of any relationship between biological effective dose (BED) and local control (LC). Conclusion: The local control rate with SBRT was excellent with very low acute and late severe toxicity rates. Our data...
Introduction: Stereotactic Body Radiation Therapy (SBRT) is the treatment of choice for patients with early stage non-surgical lung tumor as well as for oligometastases. However, this technique requires the availability of high technology equipment and professional training for its implementation. There are few reports of experience in services with exclusive...
