ALEX JONES FLORES CASSENOTE

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LIM/24 - Laboratório de Oncologia Experimental, Hospital das Clínicas, Faculdade de Medicina

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  • article 5 Citação(ões) na Scopus
    Brazilian infectious diseases specialists: who and where are they?
    (2016) CASSENOTE, Alex Jones Flores; SCHEFFER, Mario Cesar; SEGURADO, Aluisio Augusto Cotrim
    Background: 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.
  • article 4 Citação(ões) na Scopus
    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 Aurelio
    OBJECTIVES: 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.
  • article 0 Citação(ões) na Scopus
    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 Cesar
    OBJECTIVE: 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.
  • article 1 Citação(ões) na Scopus
    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 Barbosa
    Background: 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.
  • article 3 Citação(ões) na Scopus
    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 Augusto
    OBJECTIVE: 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.
  • article 2 Citação(ões) na Scopus
    There is no shortage, but inequality: demographic evolution of neurologists in Brazil (2010-2020)
    (2023) SANTOS-LOBATO, Bruno Lopes; TOMASELLI, Pedro Jose; SANTOS-LOBATO, Edienny Augusta Viana; CASSENOTE, Alex Jones Flores; CABECA, Hideraldo Luis Souza
    Background Neurology is a medical specialty that deals with prevalent diseases such as stroke, headache, epilepsy, and neurodegenerative diseases. Many countries, such as Brazil, struggle to provide neurological care for their populations, but the inadequacy and unequal distribution of the neurologist workforce are real challenges.Objective To analyze the demographic evolution of neurologists and the first-year Neurology residency positions in Brazil during the last decade (2010-2020) and the distribution imbalance between regions.Methods The demographic and geographic distribution of neurologists was calculated based on data extracted from the Brazilian Federal Medical Council reports, and the number of Neurology residency positions was based on the Brazilian National Commission of Medical Residency reports. Indicators of wealth were associated with demographic data.Results The number of neurologists per 100,000 population has increased since 2011, with a similar increase in the geographic distribution of neurologists. However, there was a marked inequality of distribution of neurologists through regions, with a gap between the Northern (lowest) and Southeastern (highest) regions. Furthermore, the imbalance of distribution of neurologists strongly correlated with social inequality. The number of Neurology residency positions increased, but with an imbalance between North and Southeast regions.Conclusions Brazil has advanced in providing neurologists. However, instead of a shortage, inequality between regions is the greatest challenge regarding the neurological workforce. The training of new neurologists is unequal between regions and occurs at a slower rate than needed. Neurologists, public health authorities, and patients should discuss solutions for these issues.
  • article 22 Citação(ões) na Scopus
    Factors Associated with Mortality and Graft Failure in Liver Transplants: A Hierarchical Approach
    (2015) HADDAD, Luciana; CASSENOTE, Alex Jones Flores; ANDRAUS, Wellington; MARTINO, Rodrigo Bronze de; ORTEGA, Neli Regina de Siqueira; ABE, Jair Minoro; D'ALBUQUERQUE, Luiz Augusto Carneiro
    Background Liver transplantation has received increased attention in the medical field since the 1980s following the introduction of new immunosuppressants and improved surgical techniques. Currently, transplantation is the treatment of choice for patients with end-stage liver disease, and it has been expanded for other indications. Liver transplantation outcomes depend on donor factors, operating conditions, and the disease stage of the recipient. A retrospective cohort was studied to identify mortality and graft failure rates and their associated factors. All adult liver transplants performed in the state of Sao Paulo, Brazil, between 2006 and 2012 were studied. Methods and Findings A hierarchical Poisson multiple regression model was used to analyze factors related to mortality and graft failure in liver transplants. A total of 2,666 patients, 18 years or older, (1,482 males; 1,184 females) were investigated. Outcome variables included mortality and graft failure rates, which were grouped into a single binary variable called negative outcome rate. Additionally, donor clinical, laboratory, intensive care, and organ characteristics and recipient clinical data were analyzed. The mortality rate was 16.2 per 100 person-years (py) (95% CI: 15.1-17.3), and the graft failure rate was 1.8 per 100 py (95% CI: 1.5-2.2). Thus, the negative outcome rate was 18.0 per 100 py (95% CI: 16.9-19.2). The best risk model demonstrated that recipient creatinine >= 2.11 mg/dl [RR = 1.80 (95% CI: 1.56-2.08)], total bilirubin >= 2.11 mg/dl [RR = 1.48 (95% CI: 1.27-1.72)], Na+ >= 141.01 mg/dl [RR = 1.70 (95% CI: 1.47-1.97)], RNI >= 2.71 [RR = 1.64 (95% CI: 1.41-1.90)], body surface >= 1.98 [RR = 0.81 (95% CI: 0.68-0.97)] and donor age >= 54 years [RR = 1.28 (95% CI: 1.11-1.48)], male gender [RR = 1.19(95% CI: 1.03-1.37)], dobutamine use [RR = 0.54 (95% CI: 0.36-0.82)] and intubation >= 6 days [RR = 1.16 (95% CI: 1.10-1.34)] affected the negative outcome rate. Conclusions The current study confirms that both donor and recipient characteristics must be considered in post-transplant outcomes and prognostic scores. Our data demonstrated that recipient characteristics have a greater impact on post-transplant outcomes than donor characteristics. This new concept makes liver transplant teams to rethink about the limits in a MELD allocation system, with many teams competing with each other. The results suggest that although we have some concerns about the donors features, the recipient factors were heaviest predictors for bad outcomes.
  • article 2 Citação(ões) na Scopus
    Preoperative inflammatory markers as prognostic predictors after hepatocellular carcinoma resection: data from a western referral center
    (2022) SILVA, Joao Paulo Maciel; COELHO, Fabricio Ferreira; CASSENOTE, Alex Jones Flores; JEISMANN, Vagner Birk; FONSECA, Gilton Marques; KRUGER, Jaime Arthur Pirola; MEIRA JUNIOR, Jose Donizeti de; NAHAS, Sergio Carlos; HERMAN, Paulo
    Background Recent studies from eastern centers have demonstrate an association between inflammatory response and long-term outcomes after hepatocellular carcinoma (HCC) resection. However, the prognostic impact of inflammatory markers in western patients, with distinct tumor and epidemiologic features, is still unknown. Aim To evaluate the prognostic impact of preoperative neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and monocyte-to-lymphocyte ratio (MLR), as well as their impact according to tumor size (< 5 cm, 5-10 cm, > 10 cm) in patients undergoing HCC resection with curative intent. Methods Optimal cut-off values for NLR, PLR, and MLR were determined by plotting the receiver operator curves. Overall survival (OS) and disease-free survival (DFS) curves were calculated using the Kaplan-Meier method and compared using the log-rank test. The Cox method was used to identify independent predictors of OS and DFS. Results In total, 161 consecutive adult patients were included. A high NLR (> 1.715) was associated with worse OS (P = 0.018). High NLR (> 2.475; P = 0.047) and PLR (> 100.25; P = 0.028) were predictors of short DFS. In HCC < 5 cm, MLR (> 1.715) was associated with worse OS (P = 0.047). In the multivariate analysis, high PLR was an independent predictor of worse DFS [hazard ratio (HR) 3.029; 95%CI 1.499-6.121; P = 0.002]. Conclusion Inflammatory markers are useful tools to predict long-term outcomes after liver resection in western patients, high NLR was able to stratify subgroups of patients with short OS and DFS, an increased PLR was an independent predictor of short DFS, while high MLR was associated with short OS in patients with early HCC.
  • article 8 Citação(ões) na Scopus
    How many and which physicians? A comparative study of the evolution of the supply of physicians and specialist training in Brazil and Spain
    (2020) SCHEFFER, Mario Cesar; PASTOR-VALERO, Maria; CASSENOTE, Alex Jones Flores; ROSIQUE, Antonio F. Compan
    Background In the face of the medical workforce shortage, several countries have promoted the opening of medical schools and the expansion of undergraduate and specialization education in medicine. Few studies have compared the characteristics and effects of expanding the supply of general practitioners and specialist physicians between countries. Brazil and Spain, two countries with distinct historical processes and socioeconomic scenarios, yet both with universal public health systems and common aspects in training and medical work, have registered a significant increase in the number of physicians and can be used to understand the challenges of strategic planning for the medical workforce. Methods This study provides a descriptive approach using longitudinal data from official databases in Brazil and Spain from 1998 to 2017. Among the comparable indicators, the absolute numbers of physicians, the population size, and the physician's ratio by inhabitants were used. The number of medical schools and undergraduate places in public and private institutions, the supply of residency training posts, and the number of medical specialists and medical residents per 100 000 inhabitants were also used to compare both countries. Seventeen medical specialties with the highest number of specialists and comparability between the two countries were selected for further comparison. Results Due to the opening of medical schools, the density of physicians per 1 000 inhabitants grew by 28% in Spain and 51% in Brazil between 1998 and 2017. In that period, Spain and Brazil increased the supply of annual undergraduate places by 60% and 137%, respectively. There is a predominance of private institutions providing available undergraduate places, and the supply of medical residency posts is smaller than the contingent of medical graduates/general practitioners each year. Conclusion Both countries have similar specialist densities in cardiology, dermatology, and neurosurgery specialties. However, family medicine and community in Spain has 91.27 specialists per 100 000 inhabitants, while in Brazil, the density is only 2.64. The comparative study indicated the complexity of the countries' decisions on increasing the medical supply of general practitioners and specialist physicians. Research and planning policies on the medical workforce must be aligned with the actual health needs of populations and health systems.
  • article 2 Citação(ões) na Scopus
    Cultural adaptation and updating of the Risk assessment and management of exposure of health care workers in the context of covid-19 questionnaire
    (2021) MARZIALE, Maria Helena Palucci; ROCHA, Fernanda Ludmilla Rossi; CASSENOTE, Alex Jones Flores; ROBAZZI, Maria Lucia do Carmo Cruz; PALHA, Pedro Fredemir; BALLESTERO, Jaqueline Garcia de Almeida; TERRA, Fabio de Souza; MININEL, Vivian Aline; SANTOS, Heloisa Ehmke Cardoso Dos; FRACAROLLI, Isabela Fernanda Larios; GARCIA, Gracielle Pereira Aires; FORTUNATO, Maria Alice Barbosa; LIMA, Marcelo Marques de
    Objective: to translate and culturally adapt the Risk assessment and management of exposure of health care workers in the context of covid-19 questionnaire to the Brazilian context and to develop and evaluate a sociodemographic and occupational characterization questionnaire to compose the adapted questionnaire. Method: five stages were conducted to adapt the Risk assessment and management of exposure of health care workers in the context of covid-19 questionnaire, namely: translation, synthesis of the translations, evaluation by a committee of judges, back translation and pre-test. As for the complementary questionnaire, it was elaborated and evaluated by a committee of judges and a pre-test was carried out. Results: the questionnaires were validated and the pre-test stage was conducted with health workers and students. Conclusion: the final version adapted to the Brazilian context was called Questionario de avaliacao de risco e gestao da exposicao de trabalhadores e estudantes de saude no contexto da covid-19 and is available for use, together with the final version of the Sociodemographic and occupational questionnaire: Risk assessment and management of exposure of health care workers and students in the context of covid-19. These questionnaires may assist in mitigating the risks of infection, illness and death of health workers and students due to covid-19.