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1.
PLoS One ; 19(7): e0306999, 2024.
Article in English | MEDLINE | ID: mdl-39012871

ABSTRACT

Multiple sclerosis (MS) is a multifaceted neurological condition characterized by challenges in timely diagnosis and personalized patient management. The application of Artificial Intelligence (AI) to MS holds promises for early detection, accurate diagnosis, and predictive modeling. The objectives of this study are: 1) to propose new MS trajectory descriptors that could be employed in Machine Learning (ML) regressors and classifiers to predict patient evolution; 2) to explore the contribution of ML models in discerning MS trajectory descriptors using only baseline Magnetic Resonance Imaging (MRI) studies. This study involved 446 MS patients who had a baseline MRI, at least two measurements of Expanded Disability Status Scale (EDSS), and a 1-year follow-up. Patients were divided into two groups: 1) for model development and 2) for evaluation. Three descriptors: ß1, ß2, and EDSS(t), were related to baseline MRI parameters using regression and classification XGBoost models. Shapley Additive Explanations (SHAP) analysis enhanced model transparency by identifying influential features. The results of this study demonstrate the potential of AI in predicting MS progression using the proposed patient trajectories and baseline MRI scans, outperforming classic Multiple Linear Regression (MLR) methods. In conclusion, MS trajectory descriptors are crucial; incorporating AI analysis into MRI assessments presents promising opportunities to advance predictive capabilities. SHAP analysis enhances model interpretation, revealing feature importance for clinical decisions.


Subject(s)
Disease Progression , Machine Learning , Magnetic Resonance Imaging , Multiple Sclerosis , Humans , Magnetic Resonance Imaging/methods , Multiple Sclerosis/diagnostic imaging , Female , Male , Adult , Middle Aged
2.
Rev. neurol. (Ed. impr.) ; 78(5): 121-125, 1-15 de Mar. 2024. tab
Article in English, Spanish | IBECS | ID: ibc-231050

ABSTRACT

Introducción Las crisis epilépticas son un motivo frecuente de consulta en los servicios de urgencias hospitalarias. Llegar al diagnóstico correcto puede ser complejo, y es fundamental decidir cuándo y qué medicamento anticrisis (MAC) pautar. Nuestro objetivo es detallar las características de los pacientes que consultaron por este motivo en un hospital mediano. Pacientes y métodos Estudio observacional retrospectivo de todos los pacientes mayores de edad que consultaron en el servicio de urgencias del Hospital Universitario Lucus Augusti entre enero de 2022 y enero de 2023 con diagnóstico al alta de crisis epiléptica. Se registraron variables demográficas, los antecedentes, si era una primera crisis, el número de éstas, si se inició un MAC y cuál, el diagnóstico, qué pruebas se realizaron y si se interconsultó con la guardia de neurología. Resultados Se diagnosticó a 122 pacientes de crisis epilépticas en urgencias. El 50,8% eran mujeres. La media de edad fue de 69,8 años. Se solicitó valoración por neurología en un 47,6%. El 50,8% presentó una primera crisis. No se llegó al diagnóstico en un 46% de los casos, de los cuales sólo 10 fueron valorados por neurología. La etiología más frecuente fue la vascular. Se realizó un electroencefalograma en un 41,8%. El levetiracetam fue prácticamente el único fármaco utilizado cuando no se consultó con neurología. Conclusiones La valoración precoz de los pacientes con una primera crisis en urgencias por un especialista en neurología es determinante para el diagnóstico de epilepsia. Cuando no se interconsulta, casi siempre se pauta el mismo MAC. (AU)


INTRODUCTION Epileptic seizures are a common cause of admission in emergency services at hospitals. Performing the correct diagnosis can be difficult, and deciding when and which anti-seizure medication (ASM) to prescribe is critical. Our objective is to detail the characteristics of patients treated in a medium-sized hospital for this reason. PATIENTS AND METHODS A retrospective observational study was performed, including all the adult patients treated by the emergency service of the Lucus Augusti University Hospital between January 2022 and January 2023 with a diagnosis of epileptic seizure on discharge. The study recorded their demographic variables, history, whether it was their first seizure, the number of seizures, whether an anti-seizure medication was administered and which one, the diagnosis, the tests performed, and whether the patient was referred to the neurology service. RESULTS A total of 122 patients were diagnosed with epileptic seizures in the emergency service. 50.8% of the patients were women. The mean age was 69.8 years. Neurological assessment was requested for 47.6%. 50.8% presented their first seizure. No diagnosis was performed in 46% of the cases, of which only 10 were evaluated by the neurology service. The most common etiology was vascular. An electroencephalogram was performed on 41.8%. Levetiracetam was practically the only drug administered when the neurology department was not consulted. CONCLUSIONS Early evaluation of patients with their first seizure in the emergency service by a neurological specialist is crucial for the diagnosis of epilepsy. The same anti-seizure medication is almost always prescribed when no cross-consultation takes place. (AU)


Subject(s)
Humans , Male , Female , Aged , Emergency Medical Services , Seizures/diagnosis , Seizures/drug therapy , Seizures/therapy , Spain , Retrospective Studies
3.
Intensive Care Med ; 50(2): 258-267, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38353714

ABSTRACT

PURPOSE: This study aimed to determine the best strategy to achieve fast and safe extubation. METHODS: This multicenter trial randomized patients with primary respiratory failure and low-to-intermediate risk for extubation failure with planned high-flow nasal cannula (HFNC) preventive therapy. It included four groups: (1) conservative screening with ratio of partial pressure of arterial oxygen (PaO2) to fraction of inspired oxygen (FiO2) ≥ 150 and positive end-expiratory pressure (PEEP) ≤ 8 cmH2O plus conservative spontaneous breathing trial (SBT) with pressure support 5 cmH2O + PEEP 0 cmH2O); (2) screening with ratio of partial pressure of arterial oxygen (PaO2) to fraction of inspired oxygen (FiO2) ≥ 150 and PEEP ≤ 8 plus aggressive SBT with pressure support 8 + PEEP 5; (3) aggressive screening with PaO2/FiO2 > 180 and PEEP 10 maintained until the SBT with pressure support 8 + PEEP 5; (4) screening with PaO2/FiO2 > 180 and PEEP 10 maintained until the SBT with pressure support 5 + PEEP 0. Primary outcomes were time-to-extubation and simple weaning rate. Secondary outcomes included reintubation within 7 days after extubation. RESULTS: Randomization to the aggressive-aggressive group was discontinued at the interim analysis for safety reasons. Thus, 884 patients who underwent at least 1 SBT were analyzed (conservative-conservative group, n = 256; conservative-aggressive group, n = 267; aggressive-conservative group, n = 261; aggressive-aggressive, n = 100). Median time to extubation was lower in the groups with aggressive screening (p < 0.001). Simple weaning rates were 45.7%, 76.78% (205 patients), 71.65%, and 91% (p < 0.001), respectively. Reintubation rates did not differ significantly (p = 0.431). CONCLUSION: Among patients at low or intermediate risk for extubation failure with planned HFNC, combining aggressive screening with preventive PEEP and a conservative SBT reduced the time to extubation without increasing the reintubation rate.


Subject(s)
Airway Extubation , Arteries , Humans , Partial Pressure , Pressure , Oxygen
4.
J. oral res. (Impresa) ; 12(1): 119-126, abr. 4, 2023. ilus
Article in English | LILACS | ID: biblio-1451421

ABSTRACT

Introduction: The present report describes the case of a 12-year-old patient with 17-year follow-up who was previously diagnosed with Papillon-Lefèvre Syndrome (PLS), which is a rare autosomal recessive irregularity in the cathepsin C gene (CTSC) characterized by palmoplantar hyperkeratosis and premature loss of primary and permanent teeth. Case Report: A specific mutation in the c.203 T > G gene inducing loss of function leading to PLS was detected, as was a mutation in the HLA-DRB1*11 allele, which is associated with this syndrome. There is no consanguinity of the parents, and the siblings are entirely healthy. Early identification of the main characteristics of this syndrome is imperative. Accurate diagnosis by genetic analysis allows differential diagnoses and timely comprehensive dental treatment. Conclusions: Additionally, it allows consultation with a dermatologist to maintain or improve the quality of life of patients with this condition due to progressive worsening and severity of the main physical manifestations. Keywords: Papillon-Lefevre Disease; Keratoderma, Palmo-plantar; Cathepsin C; Periodontitis; Skin Diseases, Genetic; Case reports


Introducción: El presente reporte describe el caso de un paciente de 12 años de edad con 17 años de seguimiento a quien previamente se le diagnosticó Síndrome de Papillon-Lefèvre (PLS), el cual es una rara irregularidad autosómica recesiva en el gen de la catepsina C (CTSC) caracterizada por hiperqueratosis palmoplantar y pérdida prematura de dientes primarios y permanentes. Reporte de Caso: Se detectó una mutación específica en el gen c.203 T > G que induce pérdida de función que conduce a PLS, así como una mutación en el alelo HLA-DRB1*11, que se asocia a este síndrome. No presenta consanguinidad de los padres, padres y hermanos totalmente sanos. La identificación temprana de las principales características de este síndrome es imperativa. El diagnóstico certero por análisis genético permite diagnósticos diferenciales y tratamientos odontológicos integrales oportunos. Conclusiones: Adicionalmente, permite la consulta con un dermatólogo para mantener o mejorar la calidad de vida de los pacientes con esta condición debido al progresivo empeoramiento y severidad de las principales manifestaciones físicas.


Subject(s)
Humans , Male , Child , Papillon-Lefevre Disease/diagnostic imaging , Keratoderma, Palmoplantar , Cathepsin C/genetics , Papillon-Lefevre Disease/therapy
5.
Article in English | MEDLINE | ID: mdl-35954848

ABSTRACT

This paper analyzes the Spanish energy transition's general situation and its increasing electricity prices in recent years from a free-market environmentalist (FME) approach. We hypothesize and argue that high taxes, high government subsidies, and government industrial access restrictions breach private property rights, hindering Spain's renewable energy (RE) development. Our paper discovers that Spain's state-interventionist policies have increased the cost of the energy and power industries, leading to electricity prices remaining relatively high before and after the outbreak of the COVID-19 pandemic. After reviewing the literature on the FME approach and Spain's case, a Box-Jenkins (ARIMA) model is used to clarify the economic performance of the Spanish electricity industry with a proposal for forecasting electricity prices. It is observed that Spain fails the EU and its national goal of providing an affordable energy price as a part of the green energy transition. Finally, free-market environmental solutions and policy reforms are proposed to facilitate Spain's energy transition.


Subject(s)
COVID-19 , Pandemics , COVID-19/epidemiology , Electricity , Humans , Industry , Spain
6.
Rev. medica electron ; 44(2)abr. 2022.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1409732

ABSTRACT

RESUMEN Introducción: el cáncer de pulmón representa en el mundo la primera causa de muerte oncológica. La tomografía computarizada es el medio diagnóstico más utilizado para clasificar esta enfermedad por estadios. Objetivo: determinar la eficacia de la tomografía computarizada en la evaluación de la pseudoprogresión de la enfermedad en pacientes con cáncer de pulmón de células no pequeñas, tratados con inmunoterapia cubana. Materiales y métodos: se realizó un estudio de evaluación, longitudinal, retrospectivo, analítico, en pacientes con cáncer de pulmón de células no pequeñas en estadio avanzado, tratados con inmunoterapia activa cubana, después de la primera línea de tratamiento con quimioterapia o quimiorradioterapia, entre el 1 de enero de 2013 y el 31 de diciembre de 2017. El universo lo constituyeron 91 pacientes tratados con Racotumomab y CIMAvax-EGF. Los datos se obtuvieron de las historias clínicas individuales, se incorporaron en una base de datos en Excel y se analizaron estadísticamente con el paquete SPSS 23. Resultados: del total de pacientes, 28 recibieron la vacuna Racotumomab y 63 la CIMAvax-EGF: pseudoprogresó el 12,5 % de los tratados con Racotumomab y el 28 % de los que lo fueron con CIMAvax-EGF. Se observó que la mayor supervivencia fue en los pseudoprogresores. Conclusiones: es eficaz el estudio tomográfico en la evaluación de respuesta de la pseudoprogresión de la enfermedad en pacientes con cáncer de pulmón de células no pequeñas, tratados con inmunoterapia cubana.


ABSTRACT Introduction: lung cancer represents the first cause of oncological death in the world. Computed tomography is the most used diagnostic mean to classify the disease by stages. Objective: to determine the efficacy of computed tomography in the evaluation of the disease pseudo-progression in patients with non-small cells lung cancer, treated with Cuban immunotherapy. Materials and methods: a longitudinal, retrospective, analytical study was conducted in patients with non-small cells lung cancer in advanced stage, treated with Cuban active immunotherapy after the first line of treatment with chemotherapy and chemoradiotherapy, between January 1, 2013 and December 31, 2017. The universe were 91 patients treated with Racotumomab and CIMAvax-EGF. Data were collected from personal clinical records, incorporated in an Excel database and statistically analyzed with the SPSS 23 package. Results: 28 patients from the total received the Racotumomab vaccine and 63 received the CIMAvax-ECG vaccine. 12.5 % of those treated with Racotumomab and 28 % of those treated with CIMAvax-ECG pseudo progressed. The greatest survival was found in pseudo progressors. Conclusions: the computed tomographic studio is efficacious in evaluating the response of the disease pseudo progression in patients with non-small cells lung cancer, treated with Cuban immunotherapy.

7.
PeerJ ; 9: e10694, 2021.
Article in English | MEDLINE | ID: mdl-33665004

ABSTRACT

Shrimp fisheries are among the most important fisheries worldwide, and shrimp culture has increased considerably in recent years. Most current studies on reproduction-related genes have been conducted on cultured shrimp. However, gene expression is intimately linked to physiological and environmental conditions, and therefore an organism's growth environment has a great influence on reproduction. Thus, gene expression profiling, should be applied in fisheries studies. Here, we identified the expression patterns of 76 reproduction-related genes in P. vannamei via the analysis of pooled transcriptomes from a time-series experiment encompassing a full circadian cycle. The expression patterns of genes associated both directly (Vtg, ODP, and ProR) and indirectly (FAMet, CruA1, and CruC1) with reproduction were evaluated, as these genes could be used as molecular markers of previtellogenic and vitellogenic maturation stages. The evaluated genes were prominently upregulated during vitellogenic stages, with specific expression patterns depending on the organism's environment, diet, and season. Vtg, ProR, ODP, and FaMet could serve as molecular markers for both wild and cultured organisms.

8.
BMC Infect Dis ; 21(1): 204, 2021 Feb 23.
Article in English | MEDLINE | ID: mdl-33622263

ABSTRACT

BACKGROUND: Melioidosis is an infectious disease caused by Burkholderia pseudomallei. In Mexico, the disease is rarely diagnosed in humans and there is no evidence of simultaneous environmental isolation of the pathogen. Here, we describe clinical profiles of fatal cases of melioidosis in two children, in a region without history of that disease. CASE PRESENTATION: About 48 h before onset of symptoms, patients swam in a natural body of water, and thereafter they rapidly developed fatal septicemic illness. Upon necropsy, samples from liver, spleen, lung, cerebrospinal fluid, and bronchial aspirate tissues contained Burkholderia pseudomallei. Environmental samples collected from the locations where the children swam also contained B. pseudomallei. All the clinical and environmental strains showed the same BOX-PCR pattern, suggesting that infection originated from the area where the patients were swimming. CONCLUSIONS: The identification of B. pseudomallei confirmed that melioidosis disease exists in Sonora, Mexico. The presence of B. pseudomallei in the environment may suggest endemicity of the pathogen in the region. This study highlights the importance of strengthening laboratory capacity to prevent and control future melioidosis cases.


Subject(s)
Melioidosis/complications , Pneumonia, Bacterial/etiology , Adolescent , Burkholderia pseudomallei/isolation & purification , Child , Fatal Outcome , Female , Humans , Male , Melioidosis/diagnosis , Melioidosis/pathology , Melioidosis/physiopathology , Mexico , Pneumonia, Bacterial/diagnosis , Pneumonia, Bacterial/pathology , Pneumonia, Bacterial/physiopathology , Sepsis/microbiology , Swimming
9.
Rev. medica electron ; 43(1): 2795-2807, tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1156776

ABSTRACT

RESUMEN Introducción: el cáncer de pulmón de células no pequeñas en estadios avanzados tiene una alta incidencia y mortalidad. Los tratamientos que se emplean son la quimioterapia, la radioterapia, las terapias dirigidas y la inmunoterapia. Es preferible que los tratamientos se realicen en el marco de ensayos clínicos. Tiene una precaria supervivencia a los cinco años del diagnóstico. Objetivo: determinar la supervivencia global de los pacientes con cáncer de pulmón de células no pequeñas, en estadios avanzados. Materiales y métodos: estudio descriptivo, retrospectivo en pacientes con diagnóstico cito-histológico de cáncer de pulmón de células no pequeñas, en estadios avanzados. De un universo de 463 pacientes atendidos en el Servicio de Oncología Provincial de Matanzas, se conformó una muestra de 348. Período comprendido desde enero del 2013 a diciembre del 2016. Las variables estudiadas se tomaron de las historias clínicas y la base de datos nacional de fallecidos por cáncer de pulmón. Resultados: la mayoría de los pacientes se diagnosticaron en etapa IV (71,69 %), la modalidad de tratamiento más utilizada fue la quimioterapia (61,2 %). Los fármacos más empleados fueron las sales de platino en el78,73 %. La supervivencia global en la etapa IV fue de 1,23 % a cinco años. La modalidad de tratamiento de mayor supervivencia fue la inmunoterapia, con 3,33 % y la supervivencia global fue de 2 %. Conclusiones: predominó la etapa IV de la enfermedad. La quimioterapia a base de sales de platino como esquema de tratamiento de primera línea y la inmunoterapia como modalidad de tratamiento reportaron mayor supervivencia global, aunque esta fue precaria (AU).


ABSTRACT Introduction: non-small cell lung cancer in advanced stages shows a high incidence and mortality. The treatments used against it are chemotherapy, radiotherapy, directed therapies and immunotherapy. It is better to perform the treatments in the context of clinical trials. It has a precarious survival at the fifth year after diagnosis. Objective: to determine the global survival of patients with non-small cell lung cancer in advanced stages. Materials and methods: descriptive, retrospective study in patients with cyto-histological diagnosis of non-small lung cancer in advanced stages. A sample of 348 patients was formed from the universe of 463 patients who attended the Provincial Service of Oncology in the period from January 2013 to December 2016. The studied variables were taken from the clinical records and the national database of deceased due to lung cancer. Results: most of patients were diagnosed at the stage IV (71.69 %); the most used treatment modality was chemotherapy (61.2). The most used drugs were platinum salts in 78.73 %. The global survival at the IV stage was 1.23 at five years. The treatment modality of greater survival was immunotherapy, with 3.33 % and the global survival was 2 %. Conclusions: the disease's stage IV predominated. The platinum salts-based chemotherapy as the first line treatment scheme and immunotherapy as treatment modality provided higher global survival, although it was precarious (AU).


Subject(s)
Humans , Carcinoma, Non-Small-Cell Lung/mortality , Survivorship , Medical Oncology , Epidemiology, Descriptive , Retrospective Studies , Carcinoma, Non-Small-Cell Lung/drug therapy
10.
J Plast Reconstr Aesthet Surg ; 74(1): 223-243, 2021 01.
Article in English | MEDLINE | ID: mdl-32978114

ABSTRACT

Nasomaxillary hypoplasia is a rare congenital malformation involving the middle third of the face. The present paper describes a novel technique for restoring the nasal projection in a patient with nasomaxillary hypoplasia, analyses its advantages and limitations, and discusses its potential applicability in other similar contexts. After orthognathic surgery, lateral osteotomies of the nasal bones were performed integrally with a piezoelectric device using a long cutting saw tip through the intraoral approach. The nasal bones were then projected by interpositioning two triangular-shaped collagenated cancellous bone graft blocks on each side in the osteotomies between the nasal and the frontal processes of the maxillary bones. Cone-beam computed tomography (CBCT) data was used to perform a morphometric analysis at one and 12 months of follow-up through image superimposition, which revealed a stable increased projection of the nasal dorsum and an anterior nasal spine (ANS) of 5.18 mm and 5.52 mm, respectively. The results of this case suggest that the technique affords satisfactory nasal dorsum augmentation while avoiding the use of permanent foreign materials, with minimal morbidity, no unsightly and visible scars, great patient satisfaction, and adequate stability at 12 months of follow-up.


Subject(s)
Maxillofacial Abnormalities/surgery , Nose/abnormalities , Nose/surgery , Rhinoplasty/methods , Cancellous Bone/transplantation , Collagen/therapeutic use , Female , Humans , Orthognathic Surgical Procedures , Young Adult
11.
Rev. medica electron ; 41(5): 1205-1216, sept.-oct. 2019.
Article in Spanish | LILACS, CUMED | ID: biblio-1094123

ABSTRACT

RESUMEN El hombre con su sabiduría e inteligencia ha sido capaz de crear medios de enseñanza, que no se han quedado relegados en el tiempo, los ha puesto al servicio de la educación para el logro de la formación integral de la personalidad. El nuevo siglo se ha caracterizado por un aumento del volumen de conocimientos en cualquier rama de la ciencia, necesita del trabajo independiente en la formación del estudiante, en cualquier nivel de enseñanza. El propósito orientar a los profesores un grupo de requerimientos didácticos para estructurar guías de estudio en función del trabajo independiente para estudiantes de las Ciencias Médicas. Se realizó un estudio documental del tema, mediante búsquedas en las bases de datos SciELO Cuba, SciELO Regional, Pubmed, de todo lo relacionado con el tema en el período 2017-2018. Se define como guía didáctica al instrumento digital o impreso que constituye un recurso para el aprendizaje a través del cual se concreta la acción del profesor y los estudiantes dentro del proceso docente, de forma planificada y organizada. Se declaran requerimientos didácticas para el desarrollo del proceso de enseñanza aprendizaje que complementan la forma de asimilación de los conocimientos. Las guías didácticas en función del trabajo independiente constituyen recursos que tienen el propósito de orientar metodológicamente al estudiante en su actividad independiente, al mismo tiempo que sirvan de apoyo a la dinámica del proceso docente, al guiar al alumno en su aprendizaje, al favorecer la autonomía, la relación de los conocimientos, habilidades y valores, así como la participación comunitaria como escenario para realizar el trabajo independiente (AU).


SUMMARY The man, with his wisdom and intelligence, has been able to create teaching aids that have not been forgotten through the times; they have been put in to service of teaching to achieve the comprehensive training of the personality. The new century, characterized by the increase of knowledge volume in every branch of the sciences, needs the independent work for training students of all education levels. The purpose is providing the teachers a group of didactic requirements to prepare study guidelines for the independent work of Medical Sciences students. A documental study of the theme was carried out searching all publications on the theme published in Scielo Cuba, Scielo Regional, and Pubmed in the period 2017-2018. Didactic guideline is the digital or printed document used as a resource for learning, through which the performance of the teacher and the students is fulfilled in the teaching process, in an organized and planned way, and declares didactic requirements for the development of the teaching learning process complementing the assimilation of knowledge. Didactic guidelines in function of the independent work are resources having the purpose of methodologically orienting the student in its independent activity, serving at the same time as a support for the dynamic of the teaching process while guiding the student in its learning, favoring autonomy, the relation between knowledge, skills and values and also community participation as scenery for performing the independent work (AU).


Subject(s)
Humans , Teaching Materials , Professional Training , Study Guide , Students, Medical , Teaching , Guidelines as Topic , Lecture , Learning
12.
Rev. medica electron ; 41(2): 333-345, mar.-abr. 2019. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1004271

ABSTRACT

RESUMEN Introducción: la neoplasia de mama, constituye la segunda causa de mortalidad por cáncer en la mujer cubana. El conocimiento de los factores pronósticos de recaída es determinante para la toma de decisiones en el tratamiento. Objetivo: identificar los factores pronósticos de recidiva por cáncer de mama. Materiales y métodos: Se realizó un estudio observacional, analítico, retrospectivo. Participaron 264 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes", de la provincia Matanzas, desde el 1 de enero del 2010 hasta el 31 de diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo libre de enfermedad, estratificado por las variables seleccionadas y un análisis bivariado para estimar la relación entre la recaída y cada una de las variables. Los datos fueron cruzados en tablas de contingencia y se calculó el riesgo relativo y los intervalos de confianza del 95 %. Se utilizó el test Chi cuadrado. El efecto independiente de las variables seleccionadas en la recaída se verificó mediante el análisis multivariado de regresión de Cox. Resultados: durante el seguimiento, 64 pacientes presentaron recaída, para una incidencia acumulada de 24,2 %. El análisis multivariado demostró peor pronóstico en aquellas mujeres con infiltración de ganglios linfáticos axilares (RR=5.65; IC: 2.21-14.44) y grado histológico III (RR=3.44; IC 1.98-5.97). Conclusiones: se identificaron como factores pronósticos de recaída: el estatus ganglionar positivo y el grado histológico III. El conocimiento de estos factores repercute directamente en la supervivencia, y es decisivo para individualizar el tratamiento.


ABSTRACT Introduction: breast neoplasm is the second cause of mortality in Cuban women. The knowledge of the recurrence prognostic factors is crucial for the treatment decision taking. Objective: to determine the recurrence prognostic factors due to breast cancer in this series. Material and methods: a retrospective, analytic, observational, cohort study was carried out; participated 264 women diagnosed with breast cancer in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas, from January 1st 2010 to December 31st 2015. The Kaplan-Meier method was used to determine disease-free time, stratified according to the chosen variables, and a bi-variate analysis to estimate the relation between recurrence and each of these variables. Data were crossed in contingency tables and the relative risk (RR) and their confidence intervals (CI) of 95 % were calculated for each of them. The Chi squared test was used to find the significant statistic association. The independent effect of the chosen variables in the recurrence was verified by means of the Cox regression multivariate analysis. Results: during the follow up, 64 patients had recurrence for an accumulated incidence of 24.2 %. The multivariate analysis by means of the Cox proportional risk model showed the worst prognosis in women with infiltration of the axillary lymph nodes (RR=5.65; CI: 2.21-14.44) and histological grade III (RR=3.44; CI 1.98-5.97). Conclusions: the positive gangliar status and histological grade III were identified as recurrence risk factors. Knowing these factors directly affects survival and is decisive to individualize the treatment.


Subject(s)
Humans , Female , Prognosis , Recurrence , Breast Neoplasms/diagnosis , Breast Neoplasms/therapy , Retrospective Studies , Analytical Epidemiology , Observational Study
13.
Rev. medica electron ; 41(2): 410-422, mar.-abr. 2019. tab, graf
Article in Spanish | CUMED, LILACS | ID: biblio-1004277

ABSTRACT

RESUMEN Introducción: las metástasis cerebrales cuando aparecen en el curso de un cáncer de pulmón reportan una precaria supervivencia al paciente, los tratamientos incluyen la cirugía o radiocirurgía. La radioterapia holocraneal constituye el estándar cuando los tratamientos locales no son posibles. Se han reportado respuestas del cerebro a la quimioterapia a un nivel comparable al de la enfermedad extra craneal, por lo que la terapia sistémica es una opción razonable para los pacientes sin síntomas neurológicos, o con síntomas relativamente controlados. Objetivo: evaluar la supervivencia de los pacientes según esquemas de tratamientos recibidos. Materiales y métodos: se realizó un estudio descriptivo y retrospectivo en pacientes con diagnóstico cito-histológico de cáncer de pulmón y metástasis cerebral, atendidos en la consulta externa del Centro Oncológico Provincial de Matanzas, en el período comprendido desde enero del 2013 a diciembre del 2016. Para obtener los datos de los tratamientos realizados, determinar fecha de fallecimiento o de última noticia del paciente se utilizaron las historias clínicas de los enfermos y las bases de datos del Servicio de Radioterapia del Centro. Resultados: el 86,5% de los pacientes recibieron tratamiento con quimioterapia de primera línea, el 76% radioterapia al cerebro y el 61,5% con nimotuzumab. Conclusiones: la aplicación de la quimioterapia, la radioterapia holocraneal y la inmunoterapia tuvieron un valor significativo, proporcionando un aumento de la supervivencia de los pacientes estudiados.


ABSTRACT Introduction: brain metastasis report a precarious survival when they appear during the course of a lung cancer. The treatments include surgery or radiosurgery. Whole brain radiotherapy is the standard treatment when the local ones are not possible. There are reports of brain answer to chemotherapy at the level of extra brain diseases; therefore, systemic therapy is a reasonable option for the patients without neurological symptoms, or with relatively controlled symptoms. Objective: to assess the patients´ survival according to the schemes of the received treatments. Materials and methods: a retrospective descriptive study was carried out in patients with cytohistological diagnosis of lung cancer and brain metastasis, who attended the external consultation of the Provincial Oncological Center of Matanzas in the period from January 2013 to December 2016. The clinical records and databases of the Radiotherapy Service of the Center were used to obtain the data of the treatments carried out, the patients' date of dead or of the last information about them. Results: 86.5 % of the patients received treatment with front-line chemotherapy, 76 % brain radiotherapy, and 61.5 % with Nimotuzumab. Conclusions: the application of chemotherapy, whole brain radiotherapy and immunotherapy achieved great improvement, increasing the survival of the studied patients.


Subject(s)
Humans , Lung Neoplasms/diagnosis , Lung Neoplasms/mortality , Lung Neoplasms/drug therapy , Lung Neoplasms/radiotherapy , Neoplasm Metastasis/diagnosis , Neoplasm Metastasis/drug therapy , Neoplasm Metastasis/radiotherapy , Epidemiology, Descriptive , Prospective Studies
14.
Rev. medica electron ; 41(2): 333-345, mar.-abr. 2019. tab
Article in Spanish | CUMED | ID: cum-75920

ABSTRACT

RESUMEN Introducción: la neoplasia de mama, constituye la segunda causa de mortalidad por cáncer en la mujer cubana. El conocimiento de los factores pronósticos de recaída es determinante para la toma de decisiones en el tratamiento. Objetivo: identificar los factores pronósticos de recidiva por cáncer de mama. Materiales y métodos: Se realizó un estudio observacional, analítico, retrospectivo. Participaron 264 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes", de la provincia Matanzas, desde el 1 de enero del 2010 hasta el 31 de diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo libre de enfermedad, estratificado por las variables seleccionadas y un análisis bivariado para estimar la relación entre la recaída y cada una de las variables. Los datos fueron cruzados en tablas de contingencia y se calculó el riesgo relativo y los intervalos de confianza del 95 %. Se utilizó el test Chi cuadrado. El efecto independiente de las variables seleccionadas en la recaída se verificó mediante el análisis multivariado de regresión de Cox. Resultados: durante el seguimiento, 64 pacientes presentaron recaída, para una incidencia acumulada de 24,2 %. El análisis multivariado demostró peor pronóstico en aquellas mujeres con infiltración de ganglios linfáticos axilares (RR=5.65; IC: 2.21-14.44) y grado histológico III (RR=3.44; IC 1.98-5.97). Conclusiones: se identificaron como factores pronósticos de recaída: el estatus ganglionar positivo y el grado histológico III. El conocimiento de estos factores repercute directamente en la supervivencia, y es decisivo para individualizar el tratamiento (AU).


ABSTRACT Introduction: breast neoplasm is the second cause of mortality in Cuban women. The knowledge of the recurrence prognostic factors is crucial for the treatment decision taking. Objective: to determine the recurrence prognostic factors due to breast cancer in this series. Material and methods: a retrospective, analytic, observational, cohort study was carried out; participated 264 women diagnosed with breast cancer in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas, from January 1st 2010 to December 31st 2015. The Kaplan-Meier method was used to determine disease-free time, stratified according to the chosen variables, and a bi-variate analysis to estimate the relation between recurrence and each of these variables. Data were crossed in contingency tables and the relative risk (RR) and their confidence intervals (CI) of 95 % were calculated for each of them. The Chi squared test was used to find the significant statistic association. The independent effect of the chosen variables in the recurrence was verified by means of the Cox regression multivariate analysis. Results: during the follow up, 64 patients had recurrence for an accumulated incidence of 24.2 %. The multivariate analysis by means of the Cox proportional risk model showed the worst prognosis in women with infiltration of the axillary lymph nodes (RR=5.65; CI: 2.21-14.44) and histological grade III (RR=3.44; CI 1.98-5.97). Conclusions: the positive gangliar status and histological grade III were identified as recurrence risk factors. Knowing these factors directly affects survival and is decisive to individualize the treatment (AU).


Subject(s)
Humans , Female , Prognosis , Recurrence , Breast Neoplasms/diagnosis , Breast Neoplasms/therapy , Retrospective Studies , Analytical Epidemiology , Observational Study
15.
Rev. medica electron ; 41(2): 410-422, mar.-abr. 2019. tab, graf
Article in Spanish | CUMED | ID: cum-75909

ABSTRACT

RESUMEN Introducción: las metástasis cerebrales cuando aparecen en el curso de un cáncer de pulmón reportan una precaria supervivencia al paciente, los tratamientos incluyen la cirugía o radiocirurgía. La radioterapia holocraneal constituye el estándar cuando los tratamientos locales no son posibles. Se han reportado respuestas del cerebro a la quimioterapia a un nivel comparable al de la enfermedad extra craneal, por lo que la terapia sistémica es una opción razonable para los pacientes sin síntomas neurológicos, o con síntomas relativamente controlados. Objetivo: evaluar la supervivencia de los pacientes según esquemas de tratamientos recibidos. Materiales y métodos: se realizó un estudio descriptivo y retrospectivo en pacientes con diagnóstico cito-histológico de cáncer de pulmón y metástasis cerebral, atendidos en la consulta externa del Centro Oncológico Provincial de Matanzas, en el período comprendido desde enero del 2013 a diciembre del 2016. Para obtener los datos de los tratamientos realizados, determinar fecha de fallecimiento o de última noticia del paciente se utilizaron las historias clínicas de los enfermos y las bases de datos del Servicio de Radioterapia del Centro. Resultados: el 86,5% de los pacientes recibieron tratamiento con quimioterapia de primera línea, el 76% radioterapia al cerebro y el 61,5% con nimotuzumab. Conclusiones: la aplicación de la quimioterapia, la radioterapia holocraneal y la inmunoterapia tuvieron un valor significativo, proporcionando un aumento de la supervivencia de los pacientes estudiados (AU).


ABSTRACT Introduction: brain metastasis report a precarious survival when they appear during the course of a lung cancer. The treatments include surgery or radiosurgery. Whole brain radiotherapy is the standard treatment when the local ones are not possible. There are reports of brain answer to chemotherapy at the level of extra brain diseases; therefore, systemic therapy is a reasonable option for the patients without neurological symptoms, or with relatively controlled symptoms. Objective: to assess the patients´ survival according to the schemes of the received treatments. Materials and methods: a retrospective descriptive study was carried out in patients with cytohistological diagnosis of lung cancer and brain metastasis, who attended the external consultation of the Provincial Oncological Center of Matanzas in the period from January 2013 to December 2016. The clinical records and databases of the Radiotherapy Service of the Center were used to obtain the data of the treatments carried out, the patients' date of dead or of the last information about them. Results: 86.5 % of the patients received treatment with front-line chemotherapy, 76 % brain radiotherapy, and 61.5 % with Nimotuzumab. Conclusions: the application of chemotherapy, whole brain radiotherapy and immunotherapy achieved great improvement, increasing the survival of the studied patients (AU).


Subject(s)
Humans , Lung Neoplasms/diagnosis , Lung Neoplasms/mortality , Lung Neoplasms/drug therapy , Lung Neoplasms/radiotherapy , Neoplasm Metastasis/diagnosis , Neoplasm Metastasis/drug therapy , Neoplasm Metastasis/radiotherapy , Epidemiology, Descriptive , Prospective Studies
16.
J Fish Biol ; 94(4): 671-679, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30847921

ABSTRACT

We assessed the spatial pattern of genetic structure of smooth hammerhead shark Sphyrna zygaena in 10 localities from the Northern Mexican Pacific. A total of 35 haplotypes were identified in 129 sequences of the mtDNA control region. The results showed slight but significant genetic structure among localities (ΦST = 0.044, P < 0.001). In addition, the localities with highest number of juveniles were genetically different (ΦST = 0.058, P < 0.024), which may be representative of nursery areas. The genetic differentiation pattern can be associated to female philopatry and preference for particular birthing sites. Finally, historical demography shows that S. zygaena populations present a recent demographic expansion that occurred during glacial events in the late Pleistocene to early Holocene.


Subject(s)
Genetic Variation , Homing Behavior , Sharks/physiology , Animals , DNA, Mitochondrial/chemistry , Female , Haplotypes , Mexico , Pacific Ocean , Phylogeography , Reproduction , Sharks/genetics
17.
Rev. medica electron ; 41(1): 104-116, ene.-feb. 2019. tab, graf
Article in Spanish | CUMED | ID: cum-75885

ABSTRACT

RESUMEN Introducción: el cáncer de mama constituye la segunda causa de mortalidad por cáncer en la mujer cubana, solo superado en el último trienio por las neoplasias de tráquea, bronquios y pulmones. Objetivo: describir algunas características epidemiológicas relacionadas con esta enfermedad. Materiales y métodos: se realizó un estudio epidemiológico observacional descriptivo y retrospectivo, en mujeres diagnosticadas con neoplasia de mama, en la consulta de mastología del hospital provincial "José Ramón López Tabranes" de la provincia de Matanzas, en el período comprendido entre el 1 de Enero del 2010 y el 31 de Diciembre del 2015. La muestra estuvo constituida por 288 mujeres y para el análisis de los datos se utilizaron frecuencias absolutas y porcientos. Resultados: predominaron las pacientes entre los 40 y 69 años (71.2 %), de color de piel blanca (65.6%) y sin antecedentes patológicos familiares de cáncer mamario (86.1%). Las variables clínico-patológicas estuvieron caracterizadas por un predominio de pacientes en estadio II (62.2 %), con estatus postmenopáusico al momento del diagnóstico (56.9 %) y con un tamaño del tumor entre 2 y 5 cm (77.4 %). El tipo histológico más frecuente fue el carcinoma ductal infiltrante, presentándose en el 85.7 % de la serie y en el 43.6 % de las enfermas se diagnosticó el tumor con grado histológico II. Es de señalar que el 61.1 % de las mujeres del estudio tenían afectación ganglionar al momento del diagnóstico. Conclusiones: se describen los principales factores sociodemográficos y clínico-patológicos, relacionados con esta enfermedad en el territorio, permitiendo realizar un cierre de campo para la ejecución de futuras investigaciones causales (AU).


ABSTRACT Introduction: breast cancer is the second cause of mortality in Cuban women, exceeded in the last three years only by tracheal, bronchial and lung neoplasms. Objective: to describe several epidemiological characteristics related to this disease. Material and method: a retrospective, observational-descriptive epidemiological study was carried out in women diagnosed with breast neoplasm in the Mastology consultation of the provincial hospital ¨Jose Ramon Lopez Tabrane¨, of Matanzas, in the period from January 1st 2010 to December 31st 2015. The sample was formed by 288 women, and for data analyses were used absolute frequencies and percents. Results: there was a predominance of white patients (65.6 %), aged 40-69 years (71.2 %), and without familiar antecedents of breast cancer (86.1 %). The clinical-pathological variables were characterized by the predominance of stage II patients (62.2 %), with menopausal status at the moment they were diagnosed (56.9 %), and with a tumor sized 2-5 cm (77.4 %). The most frequent histological kind was the duct infiltrative carcinoma that was present in 85.7 % of the series; histological grade II tumor was diagnosed in 43.6 % of the patients. it is important to say that 61.1 % of the studied women showed gangliar affectation at the moment of the diagnosis. Conclusions: the main socio-demographic and clinic-pathological factors related to this disease are described, allowing a closing to carry out future causal research (AU).


Subject(s)
Humans , Female , Adult , Middle Aged , Aged , Breast Neoplasms/diagnosis , Breast Neoplasms/pathology , Breast Neoplasms/epidemiology , Risk Factors , Epidemiologic Studies , Epidemiology, Descriptive , Retrospective Studies , Observational Study
18.
Rev. medica electron ; 41(1): 117-129, ene.-feb. 2019. graf
Article in Spanish | CUMED | ID: cum-75884

ABSTRACT

RESUMEN Introducción: en el último trienio la mortalidad por cáncer mamario en el sexo femenino en Cuba disminuyó ligeramente sus tasas, sin embargo no se han realizado estudios de supervivencia por esta enfermedad en la provincia Matanzas. Objetivo: evaluar el comportamiento del tiempo de supervivencia global a los 5 años en esta serie y valorar la sobrevida en función de variables seleccionadas. Materiales y métodos: se realizó un estudio observacional descriptivo, longitudinal y retrospectivo, en el que participaron 288 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes" de la provincia Matanzas, desde el 1 de Enero del 2010 hasta el 31 de Diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo de supervivencia global a los 5 años y en función de variables seleccionadas. La comparación de las diferentes curvas para las variables de exposición se realizó con la prueba de Rangos Logarítmicos (Log Rank). Se consideró estadísticamente significativo el valor del estadígrafo mayor de 1 y p < 0.05. Resultados: la supervivencia global a los 5 años fue de un 66 %. Se registran supervivencias muy por debajo de los estándares internacionales para las pacientes en estadios III (37 %) y IV (0). La supervivencia global disminuye de manera significativa en la medida en que se incrementan el número de ganglios afectados y el tamaño del tumor al momento del diagnóstico. Conclusiones: la supervivencia global a los 5 años resultó inferior a la registrada en la mayoría de los estudios internacionales consultados. Se muestra una disminución marcada de la sobrevida en pacientes con estadios clínicos avanzados de la enfermedad: (III y IV)(AU).


ABSTRACT Introduction: in the last three years, mortality rates due to breast cancer in the female sex in Cuba slightly decreased, but studies of this disease survival have not been carried out in the province of Matanzas. Objective: to evaluate the behavior of the global survival time of this series at the 5th year and to assess survival according to chosen variables. Material and method: a retrospective, longitudinal, observational descriptive study was carried out; 288 women diagnosed with breast cancer took part on it; they were diagnosed in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas during the period January 1st 2010- December 31st 2015. The Kaplan-Meier method was used to determine the global survival time at the 5th year according to chosen variables. The comparison of the different curves for the exposition variables was made using the Log Rank test. The test value higher than 1 and p < 0.05 was considered statistically significant. Results: global survival at the 5th year was 66 %. There are survival rates well below the international standards for the stage III (37 %) and stage IV (0) patients. Global survival significantly decreases insofar as the number of affected ganglia and the size of the tumor at the moment of the diagnosis increase. Conclusions: global survival at the 5th year was lower than the one recorded in most of the consulted international studies. There is a remarkable decrease of survival in patients with disease advanced clinical stages: III and IV(AU).


Subject(s)
Humans , Female , Breast Neoplasms/diagnosis , Breast Neoplasms/mortality , Breast Neoplasms/pathology , Survival Analysis , Survival Rate , Epidemiology, Descriptive , Retrospective Studies , Longitudinal Studies , Kaplan-Meier Estimate , Observational Study
19.
Rev. medica electron ; 41(1): 104-116, ene.-feb. 2019. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-991329

ABSTRACT

RESUMEN Introducción: el cáncer de mama constituye la segunda causa de mortalidad por cáncer en la mujer cubana, solo superado en el último trienio por las neoplasias de tráquea, bronquios y pulmones. Objetivo: describir algunas características epidemiológicas relacionadas con esta enfermedad. Materiales y métodos: se realizó un estudio epidemiológico observacional descriptivo y retrospectivo, en mujeres diagnosticadas con neoplasia de mama, en la consulta de mastología del hospital provincial "José Ramón López Tabranes" de la provincia de Matanzas, en el período comprendido entre el 1 de Enero del 2010 y el 31 de Diciembre del 2015. La muestra estuvo constituida por 288 mujeres y para el análisis de los datos se utilizaron frecuencias absolutas y porcientos. Resultados: predominaron las pacientes entre los 40 y 69 años (71.2 %), de color de piel blanca (65.6%) y sin antecedentes patológicos familiares de cáncer mamario (86.1%). Las variables clínico-patológicas estuvieron caracterizadas por un predominio de pacientes en estadio II (62.2 %), con estatus postmenopáusico al momento del diagnóstico (56.9 %) y con un tamaño del tumor entre 2 y 5 cm (77.4 %). El tipo histológico más frecuente fue el carcinoma ductal infiltrante, presentándose en el 85.7 % de la serie y en el 43.6 % de las enfermas se diagnosticó el tumor con grado histológico II. Es de señalar que el 61.1 % de las mujeres del estudio tenían afectación ganglionar al momento del diagnóstico. Conclusiones: se describen los principales factores sociodemográficos y clínico-patológicos, relacionados con esta enfermedad en el territorio, permitiendo realizar un cierre de campo para la ejecución de futuras investigaciones causales.


ABSTRACT Introduction: breast cancer is the second cause of mortality in Cuban women, exceeded in the last three years only by tracheal, bronchial and lung neoplasms. Objective: to describe several epidemiological characteristics related to this disease. Material and method: a retrospective, observational-descriptive epidemiological study was carried out in women diagnosed with breast neoplasm in the Mastology consultation of the provincial hospital ¨Jose Ramon Lopez Tabrane¨, of Matanzas, in the period from January 1st 2010 to December 31st 2015. The sample was formed by 288 women, and for data analyses were used absolute frequencies and percents. Results: there was a predominance of white patients (65.6 %), aged 40-69 years (71.2 %), and without familiar antecedents of breast cancer (86.1 %). The clinical-pathological variables were characterized by the predominance of stage II patients (62.2 %), with menopausal status at the moment they were diagnosed (56.9 %), and with a tumor sized 2-5 cm (77.4 %). The most frequent histological kind was the duct infiltrative carcinoma that was present in 85.7 % of the series; histological grade II tumor was diagnosed in 43.6 % of the patients. it is important to say that 61.1 % of the studied women showed gangliar affectation at the moment of the diagnosis. Conclusions: the main socio-demographic and clinic-pathological factors related to this disease are described, allowing a closing to carry out future causal research.


Subject(s)
Humans , Female , Adult , Middle Aged , Aged , Breast Neoplasms/diagnosis , Breast Neoplasms/pathology , Breast Neoplasms/epidemiology , Risk Factors , Epidemiologic Studies , Epidemiology, Descriptive , Retrospective Studies , Observational Study
20.
Rev. medica electron ; 41(1): 117-129, ene.-feb. 2019. graf
Article in Spanish | LILACS, CUMED | ID: biblio-991330

ABSTRACT

RESUMEN Introducción: en el último trienio la mortalidad por cáncer mamario en el sexo femenino en Cuba disminuyó ligeramente sus tasas, sin embargo no se han realizado estudios de supervivencia por esta enfermedad en la provincia Matanzas. Objetivo: evaluar el comportamiento del tiempo de supervivencia global a los 5 años en esta serie y valorar la sobrevida en función de variables seleccionadas. Materiales y métodos: se realizó un estudio observacional descriptivo, longitudinal y retrospectivo, en el que participaron 288 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes" de la provincia Matanzas, desde el 1 de Enero del 2010 hasta el 31 de Diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo de supervivencia global a los 5 años y en función de variables seleccionadas. La comparación de las diferentes curvas para las variables de exposición se realizó con la prueba de Rangos Logarítmicos (Log Rank). Se consideró estadísticamente significativo el valor del estadígrafo mayor de 1 y p < 0.05. Resultados: la supervivencia global a los 5 años fue de un 66 %. Se registran supervivencias muy por debajo de los estándares internacionales para las pacientes en estadios III (37 %) y IV (0). La supervivencia global disminuye de manera significativa en la medida en que se incrementan el número de ganglios afectados y el tamaño del tumor al momento del diagnóstico. Conclusiones: la supervivencia global a los 5 años resultó inferior a la registrada en la mayoría de los estudios internacionales consultados. Se muestra una disminución marcada de la sobrevida en pacientes con estadios clínicos avanzados de la enfermedad: (III y IV).


ABSTRACT Introduction: in the last three years, mortality rates due to breast cancer in the female sex in Cuba slightly decreased, but studies of this disease survival have not been carried out in the province of Matanzas. Objective: to evaluate the behavior of the global survival time of this series at the 5th year and to assess survival according to chosen variables. Material and method: a retrospective, longitudinal, observational descriptive study was carried out; 288 women diagnosed with breast cancer took part on it; they were diagnosed in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas during the period January 1st 2010- December 31st 2015. The Kaplan-Meier method was used to determine the global survival time at the 5th year according to chosen variables. The comparison of the different curves for the exposition variables was made using the Log Rank test. The test value higher than 1 and p < 0.05 was considered statistically significant. Results: global survival at the 5th year was 66 %. There are survival rates well below the international standards for the stage III (37 %) and stage IV (0) patients. Global survival significantly decreases insofar as the number of affected ganglia and the size of the tumor at the moment of the diagnosis increase. Conclusions: global survival at the 5th year was lower than the one recorded in most of the consulted international studies. There is a remarkable decrease of survival in patients with disease advanced clinical stages: III and IV.


Subject(s)
Humans , Female , Breast Neoplasms/diagnosis , Breast Neoplasms/mortality , Breast Neoplasms/pathology , Survival Analysis , Survival Rate , Epidemiology, Descriptive , Retrospective Studies , Longitudinal Studies , Kaplan-Meier Estimate , Observational Study
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