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1.
N Engl J Med ; 382(23): 2197-2206, 2020 06 04.
Artículo en Inglés | MEDLINE | ID: mdl-32469184

RESUMEN

BACKGROUND: Preliminary trial results showed that enzalutamide significantly improved metastasis-free survival among men who had nonmetastatic, castration-resistant prostate cancer and rapidly increasing prostate-specific antigen (PSA) levels while taking androgen-deprivation therapy. Results from the final analysis of overall survival have not yet been reported. METHODS: In this double-blind, phase 3 trial, men with nonmetastatic, castration-resistant prostate cancer (defined on the basis of conventional imaging and a PSA doubling time of ≤10 months) who were continuing to receive androgen-deprivation therapy were randomly assigned (in a 2:1 ratio) to receive enzalutamide at a dose of 160 mg or placebo once daily. Overall survival was assessed with a group sequential testing procedure and an O'Brien-Fleming-type alpha-spending function. RESULTS: As of October 15, 2019, a total of 288 of 933 patients (31%) in the enzalutamide group and 178 of 468 (38%) in the placebo group had died. Median overall survival was 67.0 months (95% confidence interval [CI], 64.0 to not reached) in the enzalutamide group and 56.3 months (95% CI, 54.4 to 63.0) in the placebo group (hazard ratio for death, 0.73; 95% CI, 0.61 to 0.89; P = 0.001). The exposure-adjusted rate of adverse events of grade 3 or higher was 17 per 100 patient-years in the enzalutamide group and 20 per 100 patient-years in the placebo group. Adverse events in the enzalutamide group were consistent with those previously reported for enzalutamide; the most frequently reported events were fatigue and musculoskeletal events. CONCLUSIONS: Enzalutamide plus androgen-deprivation therapy resulted in longer median overall survival than placebo plus androgen-deprivation therapy among men with nonmetastatic, castration-resistant prostate cancer and a rapidly rising PSA level. The risk of death associated with enzalutamide was 27% lower than with placebo. Adverse events were consistent with the established safety profile of enzalutamide. (Funded by Pfizer and Astellas Pharma; PROSPER ClinicalTrials.gov number, NCT02003924.).


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Antagonistas de Andrógenos/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Feniltiohidantoína/análogos & derivados , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Adenocarcinoma/mortalidad , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Benzamidas , Método Doble Ciego , Humanos , Calicreínas/sangre , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Nitrilos , Feniltiohidantoína/efectos adversos , Feniltiohidantoína/uso terapéutico , Placebos , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata Resistentes a la Castración/mortalidad , Análisis de Supervivencia
2.
BMC Palliat Care ; 22(1): 131, 2023 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-37674155

RESUMEN

BACKGROUND: Patients with cancer in the disease's end-stage with poor performance represent a challenging clinical scenario, as they have high chance of a fatal outcome due to clinical conditions, oncological emergencies, and/or metastatic disease. This study examines the factors predicting the potential benefit of "urgent" chemotherapy during hospitalization in this setting, thus addressing a research gap. METHODS: This retrospective observational study was conducted in the largest cancer center in the outskirts of São Paulo. It identified factors predicting the benefit from antineoplastic treatment in severe in-hospital patients admitted during 2019-2020, considering post-chemotherapy survival time as the main dependent variable. Data were retrieved from medical records. All patients aged ≥ 18 years, with an ECOG-PS score ≥ 2, and undergoing non-elective systemic cancer treatment were included. RESULTS: This study evaluated 204 records, of which 89 were included in the final analysis. A statistically significant association with the worse outcome (death within 30 days of chemotherapy) was found with higher ECOG performance status; chemotherapy dose reduction; lower values of serum albumin, hemoglobin, and creatinine clearance; and higher values of leukocytes, neutrophils, direct bilirubin, urea, and C-reactive protein. In the multivariate analysis, only albumin remained statistically associated with the outcome (hazard ratio = 0.35; confidence interval: 0.14, 0.90; p = 0.034). CONCLUSIONS: Serum albumin and other clinical and laboratory variables might be associated with early post-treatment deaths in patients with cancer. The study data might help guide the decision to administer systemic treatment in this scenario and manage critically ill patients. This study adds to our knowledge of the factors predicting the objective benefits from "heroic" or "urgent" chemotherapy for hospitalized and severely ill patients with cancer.


Asunto(s)
Pacientes Internos , Oncología Médica , Humanos , Estudios Retrospectivos , Brasil , Albúminas
3.
J Cancer Educ ; 37(4): 1108-1114, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-33244702

RESUMEN

To evaluate the perception of risk factors for cancer among medical students and how it varies among students in different years of their medical education. Cross-sectional study was conducted in 2019. The American Institute for Cancer Research Cancer Risk Awareness Survey questionnaire was administered to medical students at the Centro Universitário Saúde ABC. Students were divided into those in their 1st to 3rd year and those in their 4th to 6th year of medical education. Qualitative variables were described by frequency and percentage, and quantitative variables were described by mean and standard deviation or median and interquartile range. The scores of the groups on the questionnaire were compared using Student's t test. The 95% confidence interval was calculated, and p values < 0.05 were considered significant. We included 196 students, with approximately 30 to 35 students in each year of medical education. The median age was 22 (18 to 31), with 74% being female. Among risk factors for cancer, smoking (100%), cancer-causing genes (99.48%), and excessive sunlight exposure (99.48%) were the most cited by students. We observed a significant difference in the number of correct answers, favoring students in their 4th to the 6th year over those in their 1st to the 3rd year (mean = 16.46 vs. mean = 13.73, p < 0.001). Perception about risk factors for cancer is greater in the later years of medical education.


Asunto(s)
Neoplasias , Estudiantes de Medicina , Adolescente , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Neoplasias/epidemiología , Percepción , Factores de Riesgo , Encuestas y Cuestionarios , Adulto Joven
4.
Support Care Cancer ; 28(4): 1755-1764, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31302766

RESUMEN

PURPOSE: Cancer-related fatigue (CRF) is a common symptom among patients with cancer. The efficacy of placebo, however, was never the main objective of any meta-analysis. Predicting the efficacy of placebo may facilitate researchers in designing future clinical trials for the treatment of CRF. METHODS: We performed a systematic review searching for prospective clinical trials comparing any treatment versus placebo for the treatment of CRF. We included studies that enrolled patients with any primary site of neoplasia and any stage of cancer. We excluded all studies that assessed fatigue related to any treatment. The primary endpoint of this study is the mean effect of placebo on fatigue according to the Functional Assessment of Chronic Illness (FACIT-F) and Brief Fatigue Inventory (BFI) scales. The secondary endpoint was the proportion of patients who reported improvement in fatigue (response rate). RESULTS: We found 520 studies, and 29 studies with 3758 participants were included in the meta-analysis. Placebo had a mean effect of + 4.88 (95%CI + 2.45 to + 7.29) using the FACIT-F scale, although it was statistically worse than the interventions studied (p = 0.005). Using the BFI scale, placebo had an average effect of + 0.64 (95%CI + 0.02 to + 1.30), although it was also worse than the other interventions studied (p = 0.002). In terms of the response rate, 29% (95%CI 25-32%) of patients taking a placebo reported a significant improvement in CRF compared with 36% of patients treated with other interventions (p = 0.030). CONCLUSIONS: Placebo treatments had a significant effect on CRF, and predicting these effects may help design future studies for CRF.


Asunto(s)
Fatiga/etiología , Fatiga/terapia , Neoplasias/complicaciones , Efecto Placebo , Enfermedad Crónica , Ensayos Clínicos como Asunto/métodos , Ensayos Clínicos como Asunto/estadística & datos numéricos , Humanos , Neoplasias/terapia , Modalidades de Fisioterapia , Estudios Prospectivos , Resultado del Tratamiento
5.
Support Care Cancer ; 27(3): 927-931, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30069696

RESUMEN

OBJECTIVES: Patients with breast cancer who receive weekly paclitaxel therapy may experience deleterious effects associated with prophylactic dexamethasone use for 12 consecutive weeks. Approximately 90% of paclitaxel hypersensitivity reactions (HSRs) occur within the first 10 to 15 min of the first two infusions. We investigated the feasibility of dexamethasone withdrawal between weeks 3 and 12 (W3 and W12) in early stage breast cancer patients treated with weekly paclitaxel at the standard dose (80 mg/m2). METHODS: All patients received intravenous prophylaxis of dexamethasone 20 mg, ranitidine 50 mg, and diphenhydramine 50 mg in the first 2 weeks (W1 and W2) of treatment. Provided that no serious (G3/G4) HSRs events occurred, dexamethasone was omitted between W3 and W12, while ranitidine and diphenhydramine were continued. The primary end point was the incidence of any grade HSRs during the treatment period, and the secondary end points were quality of life and weight changes. RESULTS: Twenty-five patients were included in the study, and 300 infusion cycles of paclitaxel were evaluated for HSRs. The overall incidence of HSRs was 0.6% (2 events), and both of these events occurred in the first week. There were no incidents of serious HSRs or anaphylaxis and no G3 or G4 toxicities. Scores from the EORTC QLQ-C30 questionnaire did not change significantly for the global health status/quality of life scale or for the symptoms scales, although changes in scores differed significantly for the functional scales. There were no clinically relevant weight changes during the treatment period. CONCLUSIONS: Dexamethasone withdrawal from W3 to W12 in early stage breast cancer patients treated with weekly paclitaxel is feasible. The incidence of all grades of HSRs was comparable to that reported in trials with dexamethasone for 12 consecutive weeks, and no serious events (G3/G4) occurred. Studies with larger sample sizes are needed to confirm our results which are important, especially for patients for whom corticosteroids are contraindicated.


Asunto(s)
Antineoplásicos Hormonales/administración & dosificación , Antineoplásicos Fitogénicos/efectos adversos , Neoplasias de la Mama/tratamiento farmacológico , Dexametasona/administración & dosificación , Hipersensibilidad a las Drogas/prevención & control , Paclitaxel/efectos adversos , Adulto , Anciano , Antineoplásicos Fitogénicos/administración & dosificación , Difenhidramina/administración & dosificación , Esquema de Medicación , Sustitución de Medicamentos , Estudios de Factibilidad , Femenino , Humanos , Incidencia , Infusiones Intravenosas , Persona de Mediana Edad , Paclitaxel/administración & dosificación , Premedicación/métodos , Estudios Prospectivos , Calidad de Vida
6.
Support Care Cancer ; 27(7): 2479-2486, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30382394

RESUMEN

PURPOSE: Chemotherapy-induced fatigue (CIF) is a frequent symptom that impairs patient functioning and quality of life. We aimed to evaluate whether systemic chemotherapy can induce a specific gene expression profile in peripheral blood mononuclear cells (PBMNC) of patients with locoregional breast cancer (LRBC) who develop CIF. METHODS: PBMNC were collected from 3 patients who developed CIF before and after their initial cycle of chemotherapy, and RNA-seq was performed in an Ion Torrent™ System. A total of 12.345 transcripts were sequenced, of which 26 were selected out of 71 that had significantly different expression before and after chemotherapy. The RNA-seq results were validated by RT-qPCR in a different group of 28 patients with LRBC who developed CIF after their first cycle of chemotherapy and in six patients who also received chemotherapy but did not develop CIF (controls). We assessed CIF according the BFI and Chalder Questionnaires. RESULTS: We observed a significant increase in expression of DUSP18 and RHOBTB1 and decreased expression of NCAN and RAET1G in patients who developed CIF after chemotherapy. Control patients only exhibited a significant decrease in NCAN expression. CONCLUSION: CIF induces specific changes in gene expression in the PBMNC of LRBC patients. Some of these changes, such as downregulation of NCAN expression, may reflect direct effects of chemotherapy since they are also observed in the controls. Furthermore, CIF may involve downregulation of skeletal muscle genes (RHOBT1, DUSP18) and immune systems (RAETG1), whereas NCAN downregulation may underlie the adverse cognitive effects of chemotherapy.


Asunto(s)
Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/genética , Fatiga/inducido químicamente , Expresión Génica/genética , Quimioterapia de Inducción/efectos adversos , Leucocitos Mononucleares/metabolismo , Calidad de Vida/psicología , Neoplasias de la Mama/patología , Humanos , Persona de Mediana Edad
7.
J Cancer Educ ; 33(5): 1151-1158, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-28361359

RESUMEN

Oncology is an essential field of medicine; however, its teaching is occasionally underemphasized and uncoordinated during medical school. An alternative method of providing additional oncological information to medical students is through extracurricular activities, such as congresses and medical student associations. The aim of this paper is to describe a Medical Student Oncology Congress entirely designed and organized by medical students. Three medical students from oncology study and research groups identified the gap in oncology training at universities and decided to organize a congress for students. They selected representatives from 26 universities in Brazil for onsite registration and created a website for online registration and promotion of the congress. To determine the topics of the lectures, they searched the medical literature for the most commonly occurring cancers in adults and children. Extrapolating the academic content of oncology, they organized lectures by non-governmental organizations (NGOs), talks on career guidance and research in this field as well as a role-playing workshop to train future doctors on how to deliver news to patients. There were a total of 609 attendees, with 590 students from 26 different universities in Brazil. Approximately 82% were medical students, and among the participants there were also 15 medical educators. A total of 80.75% of the participants were extremely satisfied with the congress, and 99.17% would recommend it to a colleague. Most of the overall cost of the congress, 96%, was covered by registration fees. There was a 6% positive net balance, which was donated to the NGOs participating in the congress. This successful experience proves that it is possible to have a congress fully designed, organized and managed by students. It demonstrates how students can be active participants in their own education, as opposed to a classic approach through which only professors are responsible for instruction.


Asunto(s)
Congresos como Asunto , Educación Médica/estadística & datos numéricos , Oncología Médica/educación , Neoplasias/prevención & control , Estudiantes de Medicina/psicología , Brasil , Femenino , Humanos , Masculino
8.
J Cancer Educ ; 31(3): 582-7, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-25952940

RESUMEN

Burnout syndrome is a common occurrence among oncologists. Doctors enrolled in residency programs in clinical oncology are exposed to similar risk factors; however, few data are available in this population. This study assessed the occurrence of burnout and associated factors among first-year residents at Brazilian institutions. The present prospective, multicenter, cohort study was conducted with doctors enrolled in residency programs in clinical oncology at Brazilian institutions affiliated with the public health system. The participants answered a sociodemographic questionnaire, the Maslach Burnout Inventory (MBI), Lipp's Stress Inventory, and the Beck Depression Inventory (BDI), upon admission to the program and 6 and 12 months later. Of 37 eligible residency programs in 2009, 11 (30.6 %) agreed to participate in the study. Fifty-four residents, representing 100 % of new admissions to the participating institutions, were included. Most of the participants met the criteria for severe burnout upon admission to the residency programs (emotional exhaustion in 49.0 % and depersonalization in 64.7 %). The scores on MBI domains emotional exhaustion and depersonalization increased significantly (p < 0.01) during the first year of residency, and the prevalence of burnout increased to 88 % at the end of that first year. The present study found a high prevalence of burnout among doctors enrolled in residency programs in clinical oncology at Brazilian institutions. A large fraction of the participants met the criteria for burnout syndrome upon admission to the program, which suggests that the problem began during the course of the previous residency program in internal medicine.


Asunto(s)
Agotamiento Profesional/psicología , Internado y Residencia , Oncología Médica/educación , Médicos/psicología , Adulto , Brasil/epidemiología , Agotamiento Profesional/epidemiología , Despersonalización , Emociones , Femenino , Humanos , Masculino , Estudios Prospectivos , Encuestas y Cuestionarios
9.
Rev Assoc Med Bras (1992) ; 69(12): e20230565, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38055451

RESUMEN

BACKGROUND: Breast cancer is a public health problem with both high incidence and cure rates. After treatment, patients are monitored for long periods of time due to the risk of recurrence. Thus, staging and follow-up strategies should consider not only the best results for the patient but also its costs for the public health system. OBJECTIVE: The objective of this study was to quantify the waste of resources on breast cancer follow-up and evaluate its impact on the public health system. METHODS: This is a retrospective analysis of consecutive medical records to identify the intervals between consultations and tests used for staging and during the first 2 years of follow-up of patients with breast cancer treated at a public hospital in Brazil. Data were compared with the guidelines of the main international consensus. RESULTS: Medical records of 60 consecutive patients treated in 2018 were selected, of whom 52 had 2 or more years of follow-up, and 8 had only 1 year of complete follow-up. A total of 34 patients (56.67%) underwent excessive examinations for stating. During follow-up, 125 surplus consultations were performed (33.6%). In this phase, 111 surplus exams were also performed, representing an increase of 100.9%. A total of 423 laboratory tests were performed for 18 patients in the first year and 229 tests for 14 patients in the second year. CONCLUSION: Excessive tests and consultations significantly burdened the Unified Health System without any benefit to patients. Better adherence to staging and follow-up recommendations could reduce costs and optimize the limited resources used in the public health system.


Asunto(s)
Neoplasias de la Mama , Humanos , Femenino , Neoplasias de la Mama/terapia , Neoplasias de la Mama/patología , Estudios de Seguimiento , Estudios Retrospectivos , Examen Físico , Brasil , Estadificación de Neoplasias
10.
In Vivo ; 37(3): 1339-1345, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37103110

RESUMEN

BACKGROUND/AIM: This study aimed to evaluate the toxicities and response rate of a modified TPF (docetaxel, cisplatin, and 5-fluorouracil) protocol in patients with locally advanced head and neck cancer (ECOG performance status ≤1). PATIENTS AND METHODS: Induction treatment consisted of cisplatin 25 mg/m2/day as a 90 min infusion for three consecutive days, leucovorin 20 mg/m2/day as a bolus for four consecutive days, 5-fluorouracil (5-FU) 370 mg/m2/day as a bolus for four consecutive days, and paclitaxel 60 mg/m2 as a 1-h infusion on Days 1, 8, and 15, repeated every 3-4 weeks (twelve cycles to 6 patients). RESULTS: The main toxicities were grade 1 neuropathy, mucositis, and fatigue. There were four episodes of severe toxicities (grade ≥3). There was one early death, and 2 patients were discontinued due to hematological toxicity. Other side effects included neutropenia, nausea, diarrhea, and vomiting. CONCLUSION: Induction therapy with cisplatin, 5-fluorouracil, leucovorin, and paclitaxel in head and neck cancer is not feasible because of severe toxicity.


Asunto(s)
Fluorouracilo , Neoplasias de Cabeza y Cuello , Humanos , Fluorouracilo/efectos adversos , Cisplatino , Paclitaxel/efectos adversos , Leucovorina/efectos adversos , Quimioterapia de Inducción , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neoplasias de Cabeza y Cuello/tratamiento farmacológico
11.
J Surg Res ; 178(1): 288-93, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22516345

RESUMEN

Imatinib therapy has undoubtedly contributed to the treatment of metastatic gastrointestinal stromal (GIST) tumors that were previously untreatable. However, disease progression during treatment with tyrosine kinase inhibitors remains an issue in clinical practice not fully explained by KIT and PDGFRA mutation status. We investigated the role of three important signaling molecules (insulin-like growth factor 1 receptor [IGF1R], protein kinase C-θ [PKCθ], and Raf kinase inhibitor protein [RKIP]) that have been implicated in GIST pathogenesis as potential biomarkers for prediction of response to imatinib treatment. We retrospectively reviewed 76 patients with metastatic GIST submitted to imatinib treatment between 2002 and 2007, and analyzed 63 of them. Insulin-like growth factor 1, total PKCθ, phosphorylated PKCθ, and RKIP immunohistochemical expression were correlated with objective response to imatinib treatment and progression-free and overall survival. Median follow-up was 31.2 mo (95% confidence interval, 26.3-36.1 mo). There was a statistically significant association between IGF1R expression and type of response to imatinib treatment (P = 0.05)-that is, higher IGF1R expression was related to lower objective response. However, IGF1R higher expression did not affect progression-free and overall survival. Insulin-like growth factor 1, but not PKCθ and RKIP, emerges as a potential biomarker for prediction of response to imatinib treatment in metastatic GISTs. Validation studies are warranted.


Asunto(s)
Neoplasias Gastrointestinales/tratamiento farmacológico , Tumores del Estroma Gastrointestinal/tratamiento farmacológico , Piperazinas/uso terapéutico , Pirimidinas/uso terapéutico , Transducción de Señal/efectos de los fármacos , Adulto , Anciano , Antineoplásicos/uso terapéutico , Benzamidas , Femenino , Estudios de Seguimiento , Neoplasias Gastrointestinales/genética , Neoplasias Gastrointestinales/metabolismo , Neoplasias Gastrointestinales/patología , Tumores del Estroma Gastrointestinal/genética , Tumores del Estroma Gastrointestinal/metabolismo , Tumores del Estroma Gastrointestinal/secundario , Humanos , Mesilato de Imatinib , Masculino , Persona de Mediana Edad , Proteínas de Unión a Fosfatidiletanolamina/metabolismo , Valor Predictivo de las Pruebas , Proteína Quinasa C/metabolismo , Proteínas Proto-Oncogénicas B-raf/genética , Proteínas Proto-Oncogénicas c-kit/genética , Receptor Cross-Talk/efectos de los fármacos , Receptor Cross-Talk/fisiología , Receptor IGF Tipo 1/metabolismo , Receptor alfa de Factor de Crecimiento Derivado de Plaquetas/genética , Estudios Retrospectivos , Transducción de Señal/fisiología
12.
Support Care Cancer ; 20(3): 601-6, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21465325

RESUMEN

INTRODUCTION: Chemotherapy-induced nausea and vomiting (CINV) is a distressing side effect that affects many patients undergoing emetogenic chemotherapy, despite the use of antiemetic medications. The purpose of this trial was to evaluate the efficacy and safety of gabapentin for the prevention of CINV during the first cycle of treatment in patients receiving moderately or highly emetogenic chemotherapy. METHODS: Eighty chemotherapy-naive patients, scheduled to receive moderately and highly emetogenic chemotherapy, were enrolled in this randomised, double-blind, placebo-controlled clinical trial. All patients received intravenous ondansetron 8 mg, dexamethasone 10 mg and ranitidine 50 mg before chemotherapy on day 1 and oral dexamethasone 4 mg twice a day on days 2 and 3. Patients were randomly assigned to take gabapentin 300 mg or placebo on the following schedule: 5 and 4 days before chemotherapy once daily, 3 and 2 days before chemotherapy twice daily, 1 day before to 5 days after chemotherapy thrice daily. The primary endpoint was complete overall protection from both vomiting and nausea over the course of the entire study (day 1 through day 5), and complete protection during the delayed period (24-120 h after chemotherapy). RESULTS: The proportion of patients achieving complete response improved from 40% to 62.5%, (p = 0.04) when comparing the control group and the gabapentin group, respectively. In the subset of patients who achieved complete control in the acute phase, the percentage of patients who achieved delayed complete control was higher in the gabapentin group (89.3 × 60.7%, p = 0.01). Adverse events did not significantly differ between study arms. CONCLUSIONS: Gabapentin is a low-cost strategy to improve complete control of CINV, specially delayed CINV control.


Asunto(s)
Aminas/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Ácidos Ciclohexanocarboxílicos/uso terapéutico , Náusea/inducido químicamente , Náusea/prevención & control , Vómitos/inducido químicamente , Vómitos/prevención & control , Ácido gamma-Aminobutírico/uso terapéutico , Antieméticos/uso terapéutico , Dexametasona/administración & dosificación , Método Doble Ciego , Femenino , Antagonistas del GABA/uso terapéutico , Gabapentina , Humanos , Inyecciones Intravenosas , Masculino , Persona de Mediana Edad , Ondansetrón/administración & dosificación , Proyectos Piloto , Estudios Prospectivos , Ranitidina/administración & dosificación
13.
Rev Assoc Med Bras (1992) ; 68(9): 1228-1233, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36228253

RESUMEN

OBJECTIVE: The aim of this study was to assess the use of smartphones' messaging apps as a stressor affecting the well-being of gynecologists who use this tool to communicate with patients. METHODS: A cross-sectional study was conducted with gynecologists who use message applications to communicate with patients. Participants answered the WhatsApp Stress Scale, Oldenburg Burnout Inventory, and the techno-stress questionnaire. The population sample consisted of gynecologists and obstetricians selected by convenience. RESULTS: Physicians who spent more time using WhatsApp to communicate with patients had higher levels of stress (p=0.010), Burnout (p<0.001), and techno-invasion score (p<0.05). CONCLUSIONS: A positive association was found between the high frequency of WhatsApp usage for communication with patients and doctor's Burnout and stress, negatively influencing professional's well-being.


Asunto(s)
Agotamiento Profesional , Médicos , Agotamiento Profesional/epidemiología , Estudios Transversales , Humanos , Relaciones Médico-Paciente , Teléfono Inteligente , Encuestas y Cuestionarios
14.
Rev Assoc Med Bras (1992) ; 68(12): 1709-1714, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36449798

RESUMEN

OBJECTIVE: The aim of this study was to translate the techno-stress questionnaire proposed by Ragu Nathan et al into Brazilian Portuguese and to culturally adapt and validate it. For this, 4 of the 11 original questionnaires' domains were used. METHODS: The questionnaires' domains translated and adapted were as follows: techno-overload, techno-invasion, techno-complexity, and job satisfaction. Initially, the techno-stress questionnaire was translated into Brazilian Portuguese language according to international standards, followed by cultural adaptations. Validation for feasibility and psychometric properties of translated questionnaire was performed on 138 gynecologists and obstetricians who use message applications to communicate with patients. The physicians were divided into groups according to the weekly messaging application usage time for communication with patients: <2 h (GI, n=89), 2-5 h (GII, n=29), and >5 h (GIII, n=23). The questionnaire was applied to all participants twice on the same day, overseen by two different interviewers, at a 15-min interval. After 15 days, it was readministered. The discriminant validity and reliability were calculated to validate the instrument. RESULTS: Techno-stress subscales showed statistically significant differences between the groups. The Cronbach's alpha coefficient for the techno-stress questionnaire was >0.80, showing good internal consistency. No differences were observed in the test-retest comparison of the techno-stress questionnaire, and the intraclass correlation coefficient results showed excellent reproducibility (³0.75). CONCLUSION: The techno-stress questionnaire was adequately translated into Brazilian Portuguese, with good discriminant validity, good internal consistency, and adequate test-retest results.


Asunto(s)
Lenguaje , Traducciones , Humanos , Brasil , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Psicometría , Comparación Transcultural , Calidad de Vida
15.
JCO Glob Oncol ; 8: e2100265, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-35486884

RESUMEN

PURPOSE: Real-world evidence on non-Hodgkin lymphoma (NHL) management in Latin America is currently lacking. The objective of this study was to describe treatment characteristics and outcomes of NHL in Latin America. METHODS: A total of 2,967 patients with NHL with aggressive and indolent subtypes, including diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), mantle-cell lymphoma (MCL), and mucosa-associated lymphoid tissue (MALT) lymphoma, with incident or prevalent diagnosis between 2006 and 2015, were retrospectively identified using clinical charts registered in the Hemato-Oncology Latin America Observational Registry. Associations between treatment regimen and age at diagnosis with clinical outcomes within each subtype were estimated using Cox proportional hazard regression. RESULTS: Most patients with NHL received 1L chemoimmunotherapy, most commonly cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) with/without rituximab. Five-year survival rates were higher for MALT lymphoma (90.8%) and FL (87.6%) versus DLBCL (69.0%) and MCL (57.1%), with variations between countries. The median overall survival from first relapse for patients with DLBCL was 6.6 years, with lower risk of death for those diagnosed at age < 65 years (hazard ratio = 0.732; P = .0161). Patients achieved a longer median progression-free survival with 1L rituximab-CHOP (R-CHOP) versus CHOP or rituximab, cyclophosphamide, vincristine, and prednisone (RCVP) (7.7 v 3.0 or 1.8 years, respectively). Use of regimens other than R-CHOP was associated with a higher risk of death/progression for patients with DLBCL (rituximab, ifosfamide, carboplatin, and etoposide/ifosfamide, carboplatin, and etoposide) and FL (CHOP). There was no relationship between treatment prescribed and age at diagnosis with outcomes from first/second relapse in DLBCL and FL. CONCLUSION: Differences in treatment outcomes between NHL subtypes were observed, reflecting variations in NHL management and barriers to treatment access in Latin America. These data provide necessary evidence to understand NHL management in this region and highlight the need to improve treatment outcomes for these patients.


Asunto(s)
Linfoma Folicular , Linfoma de Células B Grandes Difuso , Linfoma de Células del Manto , Linfoma no Hodgkin , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carboplatino/uso terapéutico , Ciclofosfamida/uso terapéutico , Etopósido/uso terapéutico , Humanos , Ifosfamida/uso terapéutico , América Latina/epidemiología , Linfoma Folicular/tratamiento farmacológico , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Linfoma de Células del Manto/tratamiento farmacológico , Linfoma no Hodgkin/tratamiento farmacológico , Prednisona/uso terapéutico , Recurrencia , Sistema de Registros , Estudios Retrospectivos , Rituximab/uso terapéutico , Vincristina/uso terapéutico
16.
Clin Genitourin Cancer ; 19(3): e171-e177, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33610484

RESUMEN

INTRODUCTION: Severe neutropenia is a dose-limiting factor that occurs in up to 82% of patients with metastatic castration-resistant prostate cancer (mCRPC) treated with cabazitaxel. This study evaluated the effectiveness of granulocyte colony-stimulating factor (G-CSF) plus ciprofloxacin as prophylaxis in post-docetaxel patients with mCRPC treated with cabazitaxel and at high risk for neutropenia. PATIENTS AND METHODS: This was a phase IV, multicenter, open-label, single-arm interventional study with men aged ≥ 65 years (or < 65 years and ≥ 25% irradiated bone marrow), presenting with mCRPC after docetaxel failure, performance status ≤ 1, and life expectancy > 12 weeks. Cabazitaxel 25 mg/m2 and prednisone were given on day 1, every 21 days. G-CSF was administered on days 2 to 8 of each cycle or until an absolute neutrophil count > 2000/mm3, and ciprofloxacin 1000 mg was given orally on days 5 to 12. The rate of neutropenia grade ≥ 3 during the first cycle (primary endpoint), and frequency of neutropenia grade ≥ 3, febrile neutropenia, diarrhea grade ≥ 3, prostate-specific antigen response, and quality of life during treatment (secondary end points) were estimated. RESULTS: We included 46 patients. The mean number of cabazitaxel cycles was 9.5. During the first cycle, 40.0% of patients had neutropenia grade ≥ 3, and 42.2% had at least 1 episode of neutropenia during treatment. Febrile neutropenia and diarrhea grade ≥ 3 occurred in 1 patient each. Twenty-nine (64.4%) patients achieved prostate-specific antigen response, and 77.2% improved quality of life scores in at least 1 visit. CONCLUSIONS: Prophylactic G-CSF was effective in preventing neutropenia grade ≥ 3 and other hematologic complications during treatment with cabazitaxel 25 mg/m2 in post-docetaxel patients with mCRPC at high risk for neutropenia. The role of prophyclatic ciprofloxacin to prevent febrile neutropenia in this setting is still unclear and needs to be further evaluated.


Asunto(s)
Neutropenia , Neoplasias de la Próstata Resistentes a la Castración , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Docetaxel/uso terapéutico , Humanos , Masculino , Neutropenia/inducido químicamente , Neutropenia/prevención & control , Prednisona/uso terapéutico , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Calidad de Vida , Taxoides , Resultado del Tratamiento
17.
J Med Case Rep ; 15(1): 543, 2021 Oct 28.
Artículo en Inglés | MEDLINE | ID: mdl-34711280

RESUMEN

BACKGROUND: Pericardial neoplastic involvement is rarely related to primary tumors of the pericardium and is most often caused by spread from other primary sites, such as lung and breast carcinomas, hematological malignancies (lymphoma and leukemia), and melanoma. Although pericardial metastasis from infradiaphragmatic tumors (such as colon cancers) are rare and poorly described in literature, any neoplasm has the potential to metastasize to the pericardium and heart by either contiguity, lymphatic, or hematological spread. CASE PRESENTATION: A 44-year-old previously healthy male Causasian patient had a sudden onset of dyspnea and wheezing. During investigation with echocardiogram, computed tomography and repeated pericardiocentesis, the cause of malignant pericardial effusion was confirmed as primary manifestation of metastatic colon cancer. The patient was treated with appropriate chemotherapy and presented satisfactory disease control. CONCLUSIONS: This report emphasizes the importance of considering the diagnostic hypothesis of occult neoplasia in a patient with pericardial effusion.


Asunto(s)
Neoplasias del Colon , Neoplasias Cardíacas , Derrame Pericárdico , Adulto , Neoplasias del Colon/complicaciones , Neoplasias Cardíacas/complicaciones , Neoplasias Cardíacas/diagnóstico por imagen , Humanos , Masculino , Derrame Pericárdico/diagnóstico por imagen , Derrame Pericárdico/etiología , Pericardiocentesis , Pericardio/diagnóstico por imagen
18.
Support Care Cancer ; 18(2): 235-42, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19421788

RESUMEN

OBJECTIVES: This study aims to evaluate the efficacy of methadone as substitute for morphine and to investigate if the addition of acetaminophen could reduce the time to attain an equianalgesic dose of methadone and/or to improve the level of pain control in oncologic patients. PATIENTS AND METHODS: Fifty patients on stable doses of morphine for 1 week were switched to methadone using a "stop-start" strategy and randomized in a double-blind fashion to receive either acetaminophen (750 mg PO every 6 hours) or placebo for a 7-day period. We collected data regarding level of pain, side effects, and quality of life. RESULTS: Substitution of morphine for methadone resulted in a significant reduction in constipation (p < 0.001) and xerostomia (p = 0.03). There was also an improvement in the numeric pain scale (p = 0.03) as well as a significant improvement in the functional level and symptomatology according to the QLQ-C30 questionnaire. Addition of acetaminophen did not improve pain control or reduce the time of stabilization of analgesia once methadone was introduced. At the end of the study, most patients (70.8%, p = 0.001) preferred methadone to morphine. CONCLUSIONS: Early switching from morphine to methadone was a safe and efficient strategy for the reduction of side effects and improvement of analgesia, allowing for a comfortable dosing regimen. In this scenario, the association with acetaminophen did not improve pain control or reduce the time to achieve an equianalgesic dose of methadone.


Asunto(s)
Acetaminofén/administración & dosificación , Analgésicos Opioides/administración & dosificación , Metadona/administración & dosificación , Morfina/administración & dosificación , Neoplasias/complicaciones , Dolor/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Analgésicos no Narcóticos/administración & dosificación , Método Doble Ciego , Esquema de Medicación , Sinergismo Farmacológico , Humanos , Persona de Mediana Edad , Dolor/etiología , Estudios Prospectivos , Adulto Joven
19.
Rev Assoc Med Bras (1992) ; 66(7): 960-965, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32844942

RESUMEN

OBJECTIVE To relate anxiety and depression levels to the spirituality levels of oncology patients in the ABC region. METHODS Cross-sectional study performed at the ABC University Center oncology outpatient clinics. For the evaluation of spirituality, the Religiosity, Spirituality, and Personal Beliefs instrument of the World Health Organization (SRPB-WHO) was applied. To evaluate the levels of depression and anxiety, the Hospital Anxiety and Depression Scale (HADS) was applied. Qualitative variables were described by frequency and percentage, and quantitative variables by mean and standard deviation or median and range. Relationships were established using either the T-test or Wilcoxon-Mann-Whitney test and correlations with Pearson or Spearman tests, depending on the normality assessed by the Shapiro-Wilk test. RESULTS We included 99 patients, 68% female, with a median age of 60 years (19 to 81). A total of 24% had high or borderline levels of anxiety and 21% of depression. There was a negative correlation between levels of depression and spirituality (rho = -0.44, p <0.001), and anxiety and spirituality (rho=-0.232, p=0.02). We found no significant difference between levels of anxiety, depression, or spirituality when stratified by schooling, income, ethnicity, or marital status. There was a positive correlation between levels of anxiety and depression (cor = 0.477, p <0.001). CONCLUSION Spirituality can be a complementary tool in the treatment of patients with cancer.


Asunto(s)
Ansiedad , Depresión , Neoplasias , Espiritualidad , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/psicología
20.
J Gastrointest Cancer ; 50(4): 780-793, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30078125

RESUMEN

PURPOSE: In Brazil, patients with gastric cancer have not been systematically followed-up and evaluated, thus data regarding patterns of care and outcomes are scarce or missing. The objective of this study was to evaluate patterns of care of advanced gastric cancer in standard practice in Brazil. METHODS: This was an observational, multicenter, retrospective study, which included patients with metastatic and/or unresectable gastric cancer (MGC) who underwent at least one line of treatment. RESULTS: We analyzed data on 155 patients diagnosed with MGC, most are men (57.4%), with mean age of 61.9 years at diagnosis, with 99 (63.9%) from the public healthcare system and 56 (36.1%) from the private setting. Platinum- and/or fluoropyrimidine-containing regimens prevailed as first-line therapy, while irinotecan was the most used regimen in the second and in the third lines. More than 40% of patients underwent only one line of systemic therapy, of which around 40% either died during the treatment or went on to best supportive care (BSC) only. The remaining patients received further treatment lines. A fifth of the patients in the study died within two months after discontinuation of the first-line treatment. Adverse events, use of concomitant medications, support procedures, outpatient visits, and hospitalizations were reported for most patients, especially in the first and second lines of treatment and during exclusive BSC. CONCLUSIONS: Survival during or after the first-line chemotherapy remains poor among patients with MGC. Adverse events and health resource use were common in the first and second lines of treatment and in exclusive BSC. These results suggest that there is space for improvement in the treatment of MGC in Brazil.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Cuidados Paliativos/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Neoplasias Gástricas/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Brasil/epidemiología , Cisplatino/uso terapéutico , Femenino , Fluorouracilo/uso terapéutico , Estudios de Seguimiento , Humanos , Irinotecán/uso terapéutico , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Cuidados Paliativos/métodos , Estudios Retrospectivos , Neoplasias Gástricas/mortalidad , Neoplasias Gástricas/patología , Resultado del Tratamiento
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