Publications by authors named "Jose H S Barreto"
Lowered Cisplatin Dose and No Bleomycin in the Treatment of Pediatric Germ Cell Tumors: Results of the GCT-99 Protocol From the Brazilian Germ Cell Pediatric Oncology Cooperative Group.
J Clin Oncol
February 2016
Purpose: We describe the results of a risk-adapted, response-based therapeutic approach from the Brazilian GCT-99 study on germ cell tumors.
Patients And Methods: From May 1999 to October 2009, 579 participants were enrolled in the Brazilian GCT-99 study. Treatment, defined as specific chemotherapy regimen and number of cycles, was allocated by means of risk-group assignment at diagnosis with consideration for stage and primary tumor site.
Introduction: Antiretroviral therapy and prophylaxis during the antepartum, intrapartum and postpartum periods, cesarean delivery and avoidance of breast milk significantly reduce vertical transmission of HIV.
Objective: To evaluate the effectiveness prevention of mother-to-child transmission of HIV and determine the rate of vertical transmission in a public sexually transmitted infection and HIV referral center in Salvador, Bahia, in the period immediately prior to the initiation of universal antiretroviral therapy in pregnant women.
Methods: Cross-sectional study using data collected from medical records of children born to HIV infected mothers in Bahia from 2005 to 2008 who were referred to the Reference Center for Diagnosis and Research of Sexually Transmitted Diseases and HIV/AIDS for care.
Background: Childhood cancer is relatively rare and tends to present specific age distribution, as a prognostic factor for some of these diseases. Information on how young age affects prognosis, response to chemotherapy, and local control options in children versus AYA with osteosarcoma (OST) is minimal.
Methods: In order to identify the main differences in clinical pathologic features, surgical approaches and survival rates of primary high grade OST of the extremity between children (n = 156; <12 years old) and AYA (n = 397; 12-30 years old), the institutional database with 553 patients treated by BOTG studies over 15 years were reviewed.
Fifteen Years' Experience of the Brazilian Osteosarcoma Treatment Group (BOTG): A Contribution from an Emerging Country.
J Adolesc Young Adult Oncol
December 2013
Purpose: Little information is available regarding the tumor features, prognostic factors, and treatment results in children and adolescents and young adults (AYAs) with osteosarcoma diagnosed in developing countries. We reviewed the results of three observational cohorts of osteosarcoma patients treated in an emerging country.
Methods: A total of 604 patients below the age of 30 years with high-grade osteosarcoma were prospectively enrolled in the Brazilian Osteosarcoma Treatment Group (BOTG) studies III, IV, and V.
The authors present the clinical, laboratory and radiological findings suggestive ofgastrinoma in a patient 1 year and 9 months old. Laboratory tests obtained after fasting revealed elevated serum gastrin, supporting the suspected diagnosis of gastrinoma. In the endoscopy an elevated lesion with central depression was observed.
View Article and Find Full Text PDFObjective: this study aimed to determine the prevalence and characteristics of gastrointestinal manifestations on initial clinical presentation of acute leukemias (AL) in childhood.
Material And Methods: this is a retrospective and descriptive study that assessed medical records of 354 patients with AL from January 1995 to December 2004.
Results: acute lymphoid leukemia (ALL) was diagnosed in 273 (77.
Objective: This study was to determine the prevalence and characteristics of the osteoarticular manifestations on initial clinical presentation of acute leukemias (ALs) on childhood in the state of Bahia, Brazil.
Materials And Methods: This retrospective study assessed the medical records of 406 patients with AL from January 1995 to December 2004.
Results: Acute lymphocytic leukemia (ALL) was diagnosed in 313 (77.