A5030928028- Head and Neck Surgical Oncology
- Meningioma and schwannoma management
- Bone Tumor Diagnosis and Treatments
- Salivary Gland Tumors Diagnosis and Treatment
- Oral and Maxillofacial Pathology
- Tumors and Oncological Cases
- Nonmelanoma Skin Cancer Studies
- Head and Neck Cancer Studies
- Ear and Head Tumors
- Thyroid and Parathyroid Surgery
- Palliative and Oncologic Care
- Cancer Diagnosis and Treatment
- Adrenal and Paraganglionic Tumors
- Reconstructive Facial Surgery Techniques
- Pituitary Gland Disorders and Treatments
- Phytochemistry Medicinal Plant Applications
- Head and Neck Anomalies
- Management of metastatic bone disease
- Cerebral Venous Sinus Thrombosis
- Brain Metastases and Treatment
- Women's cancer prevention and management
- Central Venous Catheters and Hemodialysis
- Papaya Research and Applications
- Dialysis and Renal Disease Management
- Childhood Cancer Survivors' Quality of Life
Universidade Federal de Lavras
2024
Governador Celso Ramos Hospital
2022-2023
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
1994-2021
Centro de Pesquisas Oncológicas
2018-2021
McGill University
2007
Universidade de São Paulo
1994-2006
Fundação Oswaldo Cruz
1995
Malignant tumors of the skull base are rare. Therefore, no single center treats enough patients to accumulate significant numbers for meaningful analysis outcomes after craniofacial surgery (CFS). The current report was based on a large cohort that analyzed retrospectively by an International Collaborative Study Group.One thousand three hundred seven who underwent CFS in 17 institutions were analyzable outcome. median age 54 years (range, 1-98 years). Definitive treatment prior had been...
Background. Advances in imaging, surgical technique, and perioperative care have made craniofacial resection (CFR) an effective safe option for treating malignant tumors involving the skull base. The procedure does, however, complications. Because of relative rarity these tumors, most existing data on postoperative complications come from individual reports relatively small series patients. This international collaborative report examines a large cohort patients accumulated multiple...
Background. Malignant tumors of the superior sinonasal vault are rare, and, because this and varied histologic findings, most outcomes data reflect experience small patient cohorts. This International Collaborative study examines a large cohort patients accumulated from multiple institutions experienced in craniofacial surgery, with aim reporting benchmark figures for identifying patient-related tumor-related predictors prognosis after resection (CFR). Methods. Three hundred thirty-four 17...
Introduction Impact of treatment and prognostic indicators outcome are relatively ill-defined in esthesioneuroblastomas (ENB) because the rarity these tumors. This study was undertaken to assess impact craniofacial resection (CFR) on ENB. Patients Methods Data 151 patients who underwent CFR for ENB were collected from 17 institutions that participated an international collaborative study. Patient, tumor, treatment, data by questionnaires variables analyzed overall, disease-specific...
The anatomical complexity of the jugular foramen makes surgical procedures in this region delicate and difficult. Due to advances techniques, approaches became more frequent, requiring improvement knowledge anatomy.
To report postoperative mortality, complications, and outcomes in a subset of patients with the histologic diagnosis malignant melanoma extracted from an existing database large cohort accumulated multiple institutions.Retrospective outcome analysis.Seventeen international tertiary referral centers performing craniofacial surgery for skull base tumors.A total 53 were identified 1307 who had resection tumors at 17 institutions. The median age was 63 years. Of patients, 25 (47%) prior single...
Importance Postoperative radiation therapy for close surgical margins in low- to intermediate-grade salivary carcinomas lacks multi-institutional supportive evidence. Objective To evaluate the oncologic outcomes and with positive margins. Design, Setting, Participants The American Head Neck Society Salivary Gland Section conducted a retrospective cohort study from 2010 2019 at 41 centers. Margins were classified as R0 (negative), R1 (microscopically positive), or R2 (macroscopically...
The charts of 58 patients with squamous-cell carcinomas the lower lip, treated at General Hospital University São Paulo Medical School from January 1980 to December 1989, were retrospectively analyzed. In addition regular demographic data, all available information was collected regarding: smoking and drinking habits; sun exposure; clinical stage; macroscopic features primary lesions; type treatment; follow-up. A meticulous pathological analysis, comprising histologic differentiation grade,...
Abstract Background Differences in definitions and operational diagnoses for sarcopenia create difficulties understanding the epidemiology of disease. We examined prevalences using revised European Working Group on Sarcopenia Older People (EWGSOP2) Definitions Outcomes Consortium (SDOC) consensuses analyzed their level agreement patients receiving hemodialysis. Methods Data from SARCopenia trajectories associations with clinical outcomes hemodialysis (SARC‐HD) multicenter study Brazil were...
ABSTRACT Background Low levels of muscle strength and physical performance predict adverse clinical outcomes in patients on hemodialysis; however, reference values remain lacking. We described for handgrip strength, five times sit-to-stand (STS-5) 4-m gait speed a large-scale sample hemodialysis. Methods Baseline data from the SARCopenia trajectories associations with HemoDialysis (SARC-HD) study were analyzed. Muscle was evaluated using STS-5, whereas usual before midweek dialysis session....
Abstract Background. This study examined the efficacy of craniofacial surgery (CFS) in treating locally advanced nonmelanoma skin cancer (NMSC). Methods. One hundred twenty patients who underwent CFS for NMSC were identified from 17 participating institutions. Patient, tumor, and treatment information was analyzed prognostic impact on survival. Results. Surgical margins negative 74%, close 3%, involved 23% patients. Complications occurred 35% patients, half which local wound problems....
The authors describe their experience in treating 24 patients who underwent resection of tumors involving anterior, middle or posterior cranial fossa with immediate reconstruction. All were reconstructed free flaps, 15 rectus abdominis, 4 radial forearm, 3 latissimus dorsi, 2 great omentum, and one scapular flap. There was dorsi flap loss due to arterial thrombosis a heavily irradiated patient. Three presented temporary cerebrospinal fluid leak, them meningitis which resolved after...
We prospectively studied the effects of ligation inferior thyroid artery (ITA) on postoperative hypoparathyroidism in 48 patients who underwent functional subtotal thyroidectomy. Patients were randomized into two groups: A, with bilateral ITA and B, without ITA. Parathyroid function was checked preoperatively after surgery by clinical examination measurement total calcium, intact PTH, urinary AMPc. RESULTS: A significant incidence hypocalcemia occurred: 17% group 13% B 4th day. Six months...
Abstract Objectives This study evaluated the stability of implants installed simultaneously and in a delayed manner fresh frozen onlay allografts tibiae rabbits. Material methods Analyses resonance frequency ( ISQ ) removal torque were performed. The calvarium three rabbits was used as donor site. Ten New Zealand female received four same dimensions, two each tibia. randomly allocated into following groups: Group 1, that after 84 days healing, 2, those who with grafts. Both groups followed...
In spite of increasing experience with skull base surgery, some the guidelines for indications operations may vary according to institution. One-hundred two patients underwent craniofacial oncologic resections at our institution from 1982 1995. A retrospective analysis and contraindications these procedures was undertaken. The main malignant tumors were skin lesions direct invasion anterior or lateral (69%) nasal-paranasal sinus (21%). benign glomus (26%), menigiomas (22%), fibro-osseous...
OBJECTIVE To analyze the indications and results of parotid gland resections for patients with primary nonparotid diseases. STUDY DESIGN AND SETTING Retrospective analysis 442 consecutive parotidectomies (76 disease) in a referral head neck surgery service, tertiary care university hospital. RESULTS Skin cancer (mainly squamous cell basal carcinomas) was most common indication parotidectomy. Superficial parotidectomy preservation facial nerve commonly performed operation (61.8%), some form...
Introduction: The COVID-19 pandemic has had a major impact on health systems worldwide. important measures taken aiming to control the have harmfully influenced diagnosis and treatment of other diseases, including cancer. Objective: To assess Brazilian head neck (H&N) oncology reference services. Methods: This cross-sectional study evaluated data number outpatient consultations, operations infected physicians collected in 13 Cancer Centers. Results: 10% H&N surgeons infection. Significant...