ALEX JONES FLORES CASSENOTE
Projetos de Pesquisa
Unidades Organizacionais
LIM/24 - Laboratório de Oncologia Experimental, Hospital das Clínicas, Faculdade de Medicina
41 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 41
- The role of private education in the selection of primary care careers in low and middle-income countries. Findings from a representative survey of medical residents in Brazil(2020) RUSSO, Giuliano; CASSENOTE, Alex J. Flores; GUILLOUX, Aline G. Alves; SCHEFFER, Mario CesarBackground Primary health care (PHC) doctors' numbers are dwindling in high- as well as low-income countries, which is feared to hamper the achievement of Universal Health Coverage goals. As a large proportion of doctors are privately educated and private medical schools are becoming increasingly common in middle-income settings, there is a debate on whether private education represents a suitable mean to increase the supply of PHC physicians. We analyse the intentions to practice of medical residents in Brazil to understand whether these differ for public and private schools. Methods Drawing from the literature on the selection of medical specialties, we constructed a model for the determinants of medical students' intentions to practice in PHC, and used secondary data from a nationally representative sample of 4601 medical residents in Brazil to populate it. Multivariate analysis and multilevel cluster models were employed to explore the association between perspective physicians' choice of practice and types of schools attended, socio-economic characteristics, and their values and opinions on the profession. Results Only 3.7% of residents in our sample declared an intention to practice in PHC, with no significant association with the public or private nature of the medical schools attended. Instead, having attended a state secondary school (p = 0.028), having trained outside Brazil's wealthy South East (p < 0.001), not coming from an affluent family (p = 0.037), and not having a high valuation of career development opportunities (p < 0.001) were predictors of willingness to practice in PHC. A low consideration for quality of life, for opportunities for treating patients, and for the liberal aspects of the profession were also associated with future physicians' intentions to work in primary care (all p < 0.001). Conclusions In Brazil, training in public or private medical schools does not influence the intention to practice in PHC. But students from affluent backgrounds, with private secondary education, and graduating in the rich South East were found to be overrepresented in both types of training institutions, and this is what appears to negatively impact the selection of PHC careers. With a view to increasing the supply of PHC practitioners in middle-income countries, policies should focus on opening medical schools in rural areas and improving access for students from disadvantaged backgrounds.
- The HIV-Brazil Cohort Study: Design, Methods and Participant Characteristics(2014) GRANGEIRO, Alexandre; ESCUDER, Maria Mercedes; CASSANOTE, Alex Jones Flores; SOUZA, Rosa Alencar; KALICHMAN, Artur O.; VELOSO, Valdilea; IKEDA, Maria Leticia Rodrigues; BARCELLOS, Nemora Tregnago; BRITES, Carlos; TUPINANBAS, Unai; LUCENA, Noaldo O.; SILVA, Carlos Lima da; LACERDA, Heloisa Ramos; GRINSZTEJN, Beatriz; CASTILHO, Euclides AyresBackground: The HIV-Brazil Cohort Study was established to analyze the effectiveness of combination antiretroviral therapy (cART) and the impact of this treatment on morbidity, quality of life (QOL) and mortality. The study design, patients' profiles and characteristics of cART initiation between 2003 and 2010 were described. Methodology/Principal Findings: Since 2003, the HIV-Brazil Cohort has been following HIV-infected adults receiving cART at 26 public health care facilities, using routine clinical care data and self-reported QOL questionnaires. When not otherwise available, data are obtained from national information systems. The main outcomes of interest are diseases related or unrelated to HIV; suppression of viral replication; adverse events; virological, clinical and immunological failures; changes in the cART; and mortality. For the 5,061 patients who started cART between 2003 and 2010, the median follow-up time was 4.1 years (IQR 2.2-5.9 years) with an 83.4% retention rate. Patient profiles were characterized by a predominance of men (male/female ratio 1.7:1), with a mean age of 36.9 years (SD 9.9 years); 55.2% had been infected with HIV via heterosexual contact. The majority of patients (53.4%) initiated cART with a CD4(+) T-cell count <= 200 cells/mm(3). The medications most often used in the various treatment regimens were efavirenz (59.7%) and lopinavir/ritonavir (18.2%). The proportion of individuals achieving viral suppression within the first 12 months of cART use was 77.4% (95% CI 76.1-78.6). Nearly half (45.4%) of the patients presented HIV-related clinical manifestations after starting cART, and the AIDS mortality rate was 13.9 per 1,000 person-years. Conclusions/Significance: Results from cART use in the daily practice of health services remain relatively unknown in low- and middle-income countries, and studies with the characteristics of the HIV-Brazil Cohort contribute to minimizing these shortcomings, given its scope and patient profile, which is similar to that of the AIDS epidemic in the country.
- Brazilian infectious diseases specialists: who and where are they?(2016) CASSENOTE, Alex Jones Flores; SCHEFFER, Mario Cesar; SEGURADO, Aluisio Augusto CotrimBackground: The infectious diseases specialist is a medical doctor dedicated to the management of infectious diseases in their individual and collective dimensions. Objectives: The aim of this paper was to evaluate the current profile and distribution of infectious diseases specialists in Brazil. Methods: This is a cross-sectional study using secondary data obtained from institutions that register medical specialists in Brazil. Variables of interest included gender, age, type of medical school (public or private) the specialist graduated from, time since finishing residency training in infectious diseases, and the interval between M.D. graduation and residency completion. Maps are used to study the geographical distribution of infectious diseases specialists. Results: A total of 3229 infectious diseases specialist registries were counted, with 94.3% (3045) of individual counts (heads) represented by primary registries. The mean age was 43.3 years (SD 10.5), and a higher proportion of females was observed (57%; 95% CI 55.3-58.8). Most Brazilian infectious diseases specialists (58.5%) practice in the Southeastern region. However, when distribution rates were calculated, several states exhibited high concentration of infectious diseases specialists, when compared to the national rate (16.06). Interestingly, among specialists working in the Northeastern region, those trained locally had completed their residency programs more recently (8.7 yrs; 95% CI 7.9-9.5) than physicians trained elsewhere in the country (13.6 yrs: 95% CI 11.8-15.5). Conclusion: Our study shows that Brazilian infectious diseases specialists are predominantly young and female doctors. Most have concluded a medical residency training program. The absolute majority practice in the Southeastern region. However, some states from the Northern, Northeastern and Southeastern regions exhibit specialist rates above the national average. In these areas, nonetheless, there is a strong concentration of infectious diseases specialists in state capitals and in metropolitan areas. (C) 2016 Published by Elsevier Editora Ltda.
- C-peptide level as predictor of type 2 diabetes remission and body composition changes in non-diabetic and diabetic patients after Roux-en-Y gastric bypass(2021) CLEVA, Roberto de; KAWAMOTO, Flavio; BORGES, Georgia; CAPRONI, Priscila; CASSENOTE, Alex Jones Flores; SANTO, Marco AurelioOBJECTIVES: Several predictors of type 2 diabetes mellitus (T2DM) remission after metabolic surgery have been proposed and used to develop predictive scores. These scores may not be reproducible in diverse geographic regions with different baseline characteristics. This study aimed to identify predictive factors associated with T2DM remission after Roux-en-Y gastric bypass (RYGB) in patients with severe obesity. We hypothesized that the body composition alterations induced by bariatric surgery could also contribute to diabetes remission. METHODS: We retrospectively evaluated 100 patients with severe obesity and T2DM who underwent RYGB between 2014 and 2016 for preoperative factors (age, diabetes duration, insulin use, HbA1c, C-peptide plasma level, and basal insulinemia) to identify predictors of T2DM remission (glycemia<126 mg/dL and/or HbA1c<6.5%) at 3 years postoperatively. The potential preoperative predictors were prospectively applied to 20 other patients with obesity and T2DM who underwent RYGB for validation. In addition, 81 patients with severe obesity (33 with T2DM) underwent body composition evaluations by bioelectrical impedance analysis (InBody 770 (R)) 1 year after RYGB for comparison of body composition changes between patients with and those without T2DM. RESULTS: The retrospective analysis identified only a C-peptide level >3 ng/dL as a positive predictor of 3-year postoperative diabetes remission, which was validated in the prospective phase. There was a significant difference in the postoperative body composition changes between non-diabetic and diabetic patients only in trunk mass. CONCLUSION: Preoperative C-peptide levels can be useful for predicting T2DM remission after RYGB. Trunk mass is the most important difference in postoperative body composition changes between non-diabetic and diabetic patients.
- Who and Where are the University of Sao Paulo Medical School Graduates?(2019) GAMEIRO, Gustavo Rosa; KOYAMA, Leonardo Kenji Sakaue; CRUZ, Ana Luisa Ito Baptista da; CASSENOTE, Alex Jones Flores; GUILLOUX, Aline Gil Alves; SEGURADO, Aluisio Augusto Cotrim; SCHEFFER, Mario CesarOBJECTIVE: To evaluate the impact of a complex-care-based medical school in the context of the Brazilian health care system on students' career choices. METHODS: This was a retrospective cross-sectional study based on medical regulatory organization records. It included records for 7,419 physicians who graduated from FMUSP. Geographic data were analyzed using Kernel maps, and the statistical analysis was performed with SPSS (R) version 24.0. A p-value less than 0.05 was considered significant. RESULTS: Of the 7,419 physicians, 68.6% (95% CI 67.5-69.7) were male, and 20.7% (95% CI 19.8%-21.7%) had no medical specialty, compared to 46.4% nationwide. Internal medicine and surgery-based specialties were more popular, accounting for 39.4% (95% CI 38.3%-40.5%) and 16.8% (95% CI 15.5%-17.6%) of our study group, compared to the Brazilian averages of 25.9% and 13.5%. Our graduates also had a higher probability of staying in Sao Paulo City, especially when born outside the city. CONCLUSION: We believe that FMUSP remains an interesting model for studying the impact of a highly specialized center on the education and career choices of medical students.
conferenceObject Antiretroviral Therapy at Public Health Care Facilities in Brazil: HIV/AIDS Cohort-Brazil.(2015) ESCUDER, M. M. L.; GRANGEIRO, A. M.; CASSENOTE, A. J. F.; KALICHMAN, A. O.; SOUZA, R. A.; TUPINAMBA, U.; VELOSO, V.; BARCELLOS, N.; GRINSZTEJN, B.; CASTILHO, E. A.- Potential biases in the classification, analysis and interpretations in cross-sectional study: commentaries - surrounding the article ""resting heart rate: its correlations and potential for screening metabolic dysfunctions in adolescents""(2014) MORAES, Augusto Cesar Ferreira de; CASSENOTE, Alex Jones Flores; MORENO, Luis A.; CARVALHO, Herclito BarbosaBackground: Resting heart rate reflects sympathetic nerve activity. A significant association between resting heart rate (HR) and all causes of cardiovascular mortality has been reported by some epidemiologic studies. Despite suggestive evidence, resting heart rate (RHR) has not been formally explored as a prognostic factor and potential therapeutic outcome and, therefore, is not generally accepted in adolescents. Discussion: The core of the debate is the methodological aspects used in ""Resting heart rate: its correlations and potential for screening metabolic dysfunctions in adolescents""; the points are: cutoff used for cluster RHR, two different statistical models used to analyze the same set of variables, one for continuous data, and another for categorical data; interpretation of p-value < 0.05, sampling process involving two random stages, analysis of design effect and the parameters of screening tests. Summary: Aspects that must be taken into account for evaluation of a screening test to measure the potential for discrimination for a common variable (population with outcome vs. no outcome population), the main indicators are: sensitivity, specificity, accuracy, positive predictive value and negative predictive value. The measures of argumentation equality (CI) or difference (p-valor) are important to validate these indicators but do not indicate quality of screening.
- Physician turnover in primary health care services in the East Zone of Sao Paulo City, Brazil: incidence and associated factors(2022) BOURGET, Monique M. M.; CASSENOTE, Alex J. F.; SCHEFFER, Mario C.Background The shortage and high turnover of physicians is a recurrent problem in health care systems; this is especially harmful to the expansion and full operation of primary health care (PHC). The aim of this paper is to analyze incidence and associated factors with physician turnover in primary health care services in the East Zone of Sao Paulo City. Methods This is a retrospective cohort study of 1378 physicians over a 15 years' time period based on physicians' administrative records from two distinct secondary databases. Physicians' individual characteristics were analyzed including graduation and specialization. Survival analysis techniques such Kaplan-Meier and Cox Regression were used to analyze the termination of contract. Results One thousand three hundred seventy-eight physicians were included in the study of which 130 [9.4%(CI95 8.0-11.1%)] remained in the PHC services. The mean and median time until the occurrence of the physician leaving the service was 2.14 years (CI95% 1.98-2.29 years) and 1.17 years [(CI95% 1.05-1.28 years)]. The probability of contract interruption was 45% in the first year and 68% in the second year. Independent factors associated with TEC were identified: workload of 40 h/week HR = 1.71 [(CI95% 1.4-2.09), p < 0.001]; initial salary <= 1052 BGI HR = 1.87 [(CI95 1.64-2.15), p < 0.001]; time since graduation <= 2 years HR =1.36 [(CI95 1.18-1.56), p < 0.001]; and the conclusion of residency in up to 3 years after leaving the service HR = 1.69 [(CI95 1.40-2.04), p < 0.001]. Conclusions The time of employment of the physician in PHC was relatively short, with a high probability of TEC in the first year. Modifiable factors such as working hours, starting salary, time since graduation from medical school and need to enter in a residency program were associated with TEC. In pointing out that modifiable factors are responsible for long term employment or the end of contract of physicians in PHC services of the Unified Health System in the periphery of a metropolitan area, the study provides support for the planning, implementation and management of policies and strategies aimed at attracting and retaining physicians in suburban, priority or underserved regions.
- Combined liver and multivisceral resections: A comparative analysis of short and long-term outcomes(2020) JUNIOR, Sergio S.; COELHO, Fabricio F.; TUSTUMI, Francisco; CASSENOTE, Alex J. F.; JEISMANN, Vagner B.; FONSECA, Gilton M.; KRUGER, Jaime A. P.; ERNANI, Lucas; CECCONELLO, Ivan; HERMAN, PauloBackground En bloc liver and adjacent organs resections are technically demanding procedures. Few case series and nonmatched comparative studies reported the outcomes of multivisceral liver resections (MLRs). Objectives To compare the short and long-term outcomes of patients submitted MLRs with those submitted to isolated hepatectomies. Methods From a prospective database, a case-matched 1:2 study was performed comparing MLRs and isolated hepatectomy. Additionally, a risk analysis was performed to evaluate the association between MLRs and perioperative morbidity, mortality, and long-term survival. Results Fifty-three MLRs were compared with 106 matched controls. Patients undergoing MLRs had longer operative time (430 [320-525] vs 360 [270-440] minutes,P = .005); higher estimated blood loss (600 [400-800] vs 400 [100-600] mL;P = .011); longer hospital stay (8 [6-14] vs 7 [5-9] days;P = .003); and higher postoperative mortality (9.4% vs 1.9%,P = .042). Number of resected organs was not an independent prognostic factor for perioperative major complications (odds ratio [OR], 1 organ = 1.8 [0.54-6.05]; OR >= 2, organs = 4.0 [0.35-13.84]) or perioperative mortality (OR, 1, organ = 5.2 [0.91-29.51]; OR >= 2, organs = 6.5 [0.52-79.60]). No differences in overall (P = .771) and disease-free survival (P = .28) were observed. Conclusion MLRs are feasible with acceptable morbidity but relatively high perioperative mortality. MLRs did not negatively affect long-term outcomes.
- Attitude and knowledge of medical students toward donation after circulatory death(2021) MARTINO, Rodrigo Bronze de; GUIDOTTE, Diogo Visconti; WAISBERG, Daniel Reis; SANTOS, Alexandre Guerra dos; CASSENOTE, Alex Jones Flores; ARANTES, Rubens Macedo; HADDAD, Luciana Bertocco; GALVAO, Flavio Henrique; CARNEIRO-D'ALBUQUERQUE, Luiz AugustoOBJECTIVE: A survey among medical students in a Brazilian public university was performed to investigate the acceptance of organ donation in Brazil, particularly donation after circulatory death (DCD). METHODS: A questionnaire including 26 objectives and Likert scale questions was validated and sent to all medical students of our institution. The answers were analyzed considering the whole set of individuals as well as by dividing the medical students into two groups: less graduated students and more graduated students. RESULTS: From 1050 students, 103 spontaneous answers (9.8%) were retrieved after 3 weeks. A total of 89.3% agreed totally with deceased donor organ donation and 8.7% agreed partially. However, only 50.5% of the students agreed totally and 31.1% agreed partially to living donation. Students revealed that 82.6% know the concept of brain death. On the other hand, 71.8% of them declared not knowing the concept of planned withdrawal of life-sustaining therapy, mainly cardiorespiratory support. A total of 85.4% of students agreed totally with donation after brain death and 11.7% agreed partially. However, when questioned about donation in awaiting circulatory death after a planned withdrawal of life-sustaining therapy, only 18.4% agreed totally and 32% agreed partially. Both groups of less and more graduated students showed similar results. CONCLUSIONS: Our study found a clear lack of information and consequently in acceptance of DCD. Education in the field of end-oflife management may improve not only the acceptance of DCD donation but also the whole understanding of planned withdrawal of life-sustaining therapy.