Background: Colposcopy imaging is widely used to diagnose, treat and follow-up on premalignant an... more Background: Colposcopy imaging is widely used to diagnose, treat and follow-up on premalignant and malignant lesions in the vulva, vagina, and cervix. Thus, deep learning algorithms are being used widely in cervical cancer diagnosis tools. In this study, we developed and preliminarily validated a model based on the Unet network plus SVM to classify cervical lesions on colposcopy images. Methodology: Two sets of images were used: the Intel & Mobile ODT Cervical Cancer Screening public dataset, and a private dataset from a public hospital in Ecuador during a routine colposcopy, after the application of acetic acid and lugol. For the latter, the corresponding clinical information was collected, specifically cytology on the PAP smear and the screening of human papillomavirus testing, prior to colposcopy. The lesions of the cervix or regions of interest were segmented and classified by the Unet and the SVM model, respectively. Results: The CAD system was evaluated for the ability to pred...
ANTECEDENTES: El codigo integral penal senala que el aborto provocado no sera punible cuando se r... more ANTECEDENTES: El codigo integral penal senala que el aborto provocado no sera punible cuando se realice para evitar un peligro en la salud de la mujer y cuando el embarazo es consecuencia de una violacion en una mujer que padezca de discapacidad mental. OBJETIVOS: Identificar los conocimientos actitudes y practicas de los ginecologos de los hospitales publicos de Cuenca, sobre el aborto voluntario y terapeutico; identificar si existe relacion entre la edad, el genero, los anos de ejercicio profesional y las concepciones religiosas de los ginecologos, sobre el conocimiento de la legislacion sobre el aborto y su apertura hacia el aborto voluntario y terapeutico. METODOLOGIA: Un total de 27 ginecologos, que trabajan en hospitales publicos del canton Cuenca fueron encuestados; se seleccionaron los profesionales que laboran en centros con internacion por la mayor posibilidad de que ellos puedan tener contacto con paciente que requieren abortos terapeuticos, o hayan atendido pacientes con...
International Journal of Environmental Research and Public Health
Background: HPV primary screening has shown effectiveness for cancer prevention; however, gynaeco... more Background: HPV primary screening has shown effectiveness for cancer prevention; however, gynaecological examination is considered uncomfortable. Self-sampling methods increase the acceptance of screening. The aim of this study is to compare the sensitivity and specificity of clinician sampling versus vaginal and urine self-sampling for HPV diagnosis. Methods: A diagnostic test study was conducted in a rural parish of Cuenca, Ecuador. A total of 120 women participated. Each participant self-collected urine and vaginal samples and underwent clinician sampling for HPV testing. The latter was considered as the golden standard. All three samples were processed with the same amplification and hybridization protocol for HPV detection (Hybribio) following the manufacturer’s instructions. Results: Characteristics of the participants were: median age 35 years; 40.8% married; 46.7% had a primary level of education; and median age of sexual onset, 17.6 years. The prevalence of any type of HPV ...
Community embedded reproductive health interventions for adolescents in Latin America: process ev... more Community embedded reproductive health interventions for adolescents in Latin America: process evaluation. Decat et al. BMC Public Health 2013, 13:31
Los conocimientos y las prácticas son esenciales para promover la salud, prevenir enfermedades, m... more Los conocimientos y las prácticas son esenciales para promover la salud, prevenir enfermedades, mantener la salud y hacer frente a las enfermedades en general y en particular al cáncer cérvico-uterino. El objetivo del presente estudio fue describir las características sociodemográficas y prácticas de prevención en mujeres con lesiones histopatológicas de cuello uterino, para lo cual se entrevistó a 174 mujeres de entre 30 a 89 años de edad, atendidas en los hospitales de SOLCA y Vicente Corral de la ciudad de Cuenca. Los resultados muestran que las participantes en su mayoría residentes en zonas urbana y urbano-marginal, casadas, con educación primaria y secundaria, con dificultades económicas y auto identificación mestiza, presentaron con mayor frecuencia lesiones histopatológicas tipo LIEAG, LIEBG y Cáncer. Si bien poseen información sobre el VPH, muy pocas conocen que es la principal causa del CCU, que se transmite sexualmente, que existen vacunas y pruebas de detección temprana....
Revista Médica del Hospital José Carrasco Arteaga, 2020
Cervical cancer is a neoplasm mainly caused by the human papillomavirus (HPV), which is acquired ... more Cervical cancer is a neoplasm mainly caused by the human papillomavirus (HPV), which is acquired through sexual contact. Cervical cancer is more prevalent in low and middle income countries; 88% of worldwide deaths from this cause, occur in developing countries, such as Ecuador. The ELEVATE project (Early detection of cervical cancer in hard-to-reach populations of women through portable and point-of-care HPV testing), funded by the European Union, seeks to characterize the national context of this disease; with this purpose, we carried out a systematic search for scientific articles and gray literature, produced in Ecuador, using specialized search engines, and virtual repositories from universities and government institutions. KEYWORDS: UTERINE CERVICAL NEOPLASMS, HUMAN PAPILLOMAVIRUS, PAPANICOLAOU TEST, PREVENTIVE HEALTH SERVICES, ECUADOR
Background: Colposcopy imaging is widely used to diagnose, treat and follow-up on premalignant an... more Background: Colposcopy imaging is widely used to diagnose, treat and follow-up on premalignant and malignant lesions in the vulva, vagina, and cervix. Thus, deep learning algorithms are being used widely in cervical cancer diagnosis tools. In this study, we developed and preliminarily validated a model based on the Unet network plus SVM to classify cervical lesions on colposcopy images. Methodology: Two sets of images were used: the Intel & Mobile ODT Cervical Cancer Screening public dataset, and a private dataset from a public hospital in Ecuador during a routine colposcopy, after the application of acetic acid and lugol. For the latter, the corresponding clinical information was collected, specifically cytology on the PAP smear and the screening of human papillomavirus testing, prior to colposcopy. The lesions of the cervix or regions of interest were segmented and classified by the Unet and the SVM model, respectively. Results: The CAD system was evaluated for the ability to pred...
ANTECEDENTES: El codigo integral penal senala que el aborto provocado no sera punible cuando se r... more ANTECEDENTES: El codigo integral penal senala que el aborto provocado no sera punible cuando se realice para evitar un peligro en la salud de la mujer y cuando el embarazo es consecuencia de una violacion en una mujer que padezca de discapacidad mental. OBJETIVOS: Identificar los conocimientos actitudes y practicas de los ginecologos de los hospitales publicos de Cuenca, sobre el aborto voluntario y terapeutico; identificar si existe relacion entre la edad, el genero, los anos de ejercicio profesional y las concepciones religiosas de los ginecologos, sobre el conocimiento de la legislacion sobre el aborto y su apertura hacia el aborto voluntario y terapeutico. METODOLOGIA: Un total de 27 ginecologos, que trabajan en hospitales publicos del canton Cuenca fueron encuestados; se seleccionaron los profesionales que laboran en centros con internacion por la mayor posibilidad de que ellos puedan tener contacto con paciente que requieren abortos terapeuticos, o hayan atendido pacientes con...
International Journal of Environmental Research and Public Health
Background: HPV primary screening has shown effectiveness for cancer prevention; however, gynaeco... more Background: HPV primary screening has shown effectiveness for cancer prevention; however, gynaecological examination is considered uncomfortable. Self-sampling methods increase the acceptance of screening. The aim of this study is to compare the sensitivity and specificity of clinician sampling versus vaginal and urine self-sampling for HPV diagnosis. Methods: A diagnostic test study was conducted in a rural parish of Cuenca, Ecuador. A total of 120 women participated. Each participant self-collected urine and vaginal samples and underwent clinician sampling for HPV testing. The latter was considered as the golden standard. All three samples were processed with the same amplification and hybridization protocol for HPV detection (Hybribio) following the manufacturer’s instructions. Results: Characteristics of the participants were: median age 35 years; 40.8% married; 46.7% had a primary level of education; and median age of sexual onset, 17.6 years. The prevalence of any type of HPV ...
Community embedded reproductive health interventions for adolescents in Latin America: process ev... more Community embedded reproductive health interventions for adolescents in Latin America: process evaluation. Decat et al. BMC Public Health 2013, 13:31
Los conocimientos y las prácticas son esenciales para promover la salud, prevenir enfermedades, m... more Los conocimientos y las prácticas son esenciales para promover la salud, prevenir enfermedades, mantener la salud y hacer frente a las enfermedades en general y en particular al cáncer cérvico-uterino. El objetivo del presente estudio fue describir las características sociodemográficas y prácticas de prevención en mujeres con lesiones histopatológicas de cuello uterino, para lo cual se entrevistó a 174 mujeres de entre 30 a 89 años de edad, atendidas en los hospitales de SOLCA y Vicente Corral de la ciudad de Cuenca. Los resultados muestran que las participantes en su mayoría residentes en zonas urbana y urbano-marginal, casadas, con educación primaria y secundaria, con dificultades económicas y auto identificación mestiza, presentaron con mayor frecuencia lesiones histopatológicas tipo LIEAG, LIEBG y Cáncer. Si bien poseen información sobre el VPH, muy pocas conocen que es la principal causa del CCU, que se transmite sexualmente, que existen vacunas y pruebas de detección temprana....
Revista Médica del Hospital José Carrasco Arteaga, 2020
Cervical cancer is a neoplasm mainly caused by the human papillomavirus (HPV), which is acquired ... more Cervical cancer is a neoplasm mainly caused by the human papillomavirus (HPV), which is acquired through sexual contact. Cervical cancer is more prevalent in low and middle income countries; 88% of worldwide deaths from this cause, occur in developing countries, such as Ecuador. The ELEVATE project (Early detection of cervical cancer in hard-to-reach populations of women through portable and point-of-care HPV testing), funded by the European Union, seeks to characterize the national context of this disease; with this purpose, we carried out a systematic search for scientific articles and gray literature, produced in Ecuador, using specialized search engines, and virtual repositories from universities and government institutions. KEYWORDS: UTERINE CERVICAL NEOPLASMS, HUMAN PAPILLOMAVIRUS, PAPANICOLAOU TEST, PREVENTIVE HEALTH SERVICES, ECUADOR
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Papers by Bernardo Vega