Lab

Paula C. Bermúdez's Lab


Featured research (4)

Background The intersection of artificial intelligence (AI) with cancer research is increasing, and many of the advances have focused on the analysis of cancer images. Objectives To describe and synthesize the literature on the diagnostic accuracy of AI in early imaging diagnosis of cervical cancer following Preferred Reporting Items for Systematic Reviews and Meta‐Analyses Extension for Scoping Reviews (PRISMA‐ScR). Search Strategy Arksey and O'Malley methodology was used and PubMed, Scopus, and Google Scholar databases were searched using a combination of English and Spanish keywords. Selection Criteria Identified titles and abstracts were screened to select original reports and cross‐checked for overlap of cases. Data Collection and Analysis A descriptive summary was organized by the AI algorithm used, total of images analyzed, data source, clinical comparison criteria, and diagnosis performance. Main Results We identified 32 studies published between 2009 and 2022. The primary sources of images were digital colposcopy, cervicography, and mobile devices. The machine learning/deep learning (DL) algorithms applied in the articles included support vector machine (SVM), random forest classifier, k‐nearest neighbors, multilayer perceptron, C4.5, Naïve Bayes, AdaBoost, XGboots, conditional random fields, Bayes classifier, convolutional neural network (CNN; and variations), ResNet (several versions), YOLO+EfficientNetB0, and visual geometry group (VGG; several versions). SVM and DL methods (CNN, ResNet, VGG) showed the best diagnostic performances, with an accuracy of over 97%. Conclusion We concluded that the use of AI for cervical cancer screening has increased over the years, and some results (mainly from DL) are very promising. However, further research is necessary to validate these findings.
Background Cervical cytology is essential for the early detection of cervical cancer. However, in Colombia, only 50% of women with subsidized health insurance were screened in 2019, compared to 100% of women with contributory insurance. This disparity highlights significant barriers that must be addressed. This study aimed to identify the factors that contribute to or hinder adherence to cervical cytology screening among low-income women with subsidized health insurance in a public primary care network in Cali, Colombia, from 2014 to 2018. Methods In a qualitative case study, the experience of women and health care and administrative personnel was recovered. Forty-seven women participated in seven focus group discussions. Five other women using the program participated in in-depth interviews. Finally, we interviewed eight people from the healthcare area and the health services administration. The qualitative data collected underwent content analysis, guided by the theoretical framework of Social Determinants of Health. Within this framework, five interconnected dimensions that influence adherence were incorporated. Results Adherence is a multifactorial phenomenon, and in relation to attendance at cervical cytology, the analysis delved into the mechanisms that affect it in a low-income context. Barriers to adherence were identified across multiple dimensions, including social and economic factors, health conditions, and patient-related factors, among both adherent and non-adherent women. Among adherent women, barriers and facilitators related to the healthcare team and system, as well as patient-related factors, were identified. Conclusions The findings of this research can be useful in developing personalized interventions and strategies to improve adherence and screening outcomes in low-income settings. It is necessary to increase the resources of health insurance entities to establish effective communication channels with women who attend the cervical cancer prevention program.
Global cervical cancer incidence and mortality have remained a major public health problem. Depending on the quality and coverage of preventive programs, and the capacity of health care systems, different screening tests are used, with the Pap smear being the most widely implemented. Several difficulties have been reported in accessing timely detection, causing late cervical cancer diagnosis. Trying to close these gaps, new screening devices have been developed in recent years; however, there is a lack of knowledge about whether or not women perspective has been included in the design process and technological development of these devices. This scoping review aimed to describe and synthesize scientific literature on women's critical experiences with Pap smears to prospectively contribute to the design, development, and scale-up of cervical cancer screening devices. The electronic databases Web of Science, Scopus, PubMed, PsycINFO and SciELO were searched for relevant studies published between 2012 and 2021; finally, 18 qualitative studies were included. Experiences were classified into four categories: fear and embarrassment, speculum pain and discomfort, outcome distress and health service barriers. Critical experiences before, during, and after the test were analyzed in turn. In particular, during the test, women reported pain associated with the use of the speculum. The acceptability of new screening devices will largely depend on comfort during the test and timely delivery of results. This review provides a useful qualitative synthesis, not only to advance the design of novel devices but also for future implementation research in cervical screening services.
Background Cervical cytology is essential for the early detection of cervical cancer. However, in Colombia during 2019, 50% of women with health insurance for poor people (subsidized regime) were screened, compared to 100% of women with health insurance for people with capacity to pay a contribution (contributive regime); these differences reflect significant barriers to face. The objective of this study was to identify the barriers and facilitators of adherence to the cytology exam in low-income women affiliated to the subsidized regime in a public primary care network in the city of Cali, Colombia from 2014 to 2018. Methods In a qualitative case study, the experience of women and health care and administrative personnel was recovered. Forty-seven women participated in seven focus group discussions; Five other women using the program participated in in-depth interviews; Finally, we interviewed eight people from the healthcare area and the health services administration. Results Women describe living conditions, fear, shame, and fears of the procedure as barriers. As facilitators, they recognize agile attention, ease of consulting services, and having social support. However, the health care and administration personnel consider the lack of up-to-date information on women a significant barrier, challenging recruiting and following up. Conclusions complex interventions are required to be adapted to the social conditions, culture, and social processes of the women affiliated with the subsidized health insurance. This might facilitate adherence in groups of non-adherent women with low adherence.

Lab head

Paula C. Bermúdez
Department
  • Departamento de salud pública y epidemiología
About Paula C. Bermúdez
  • Paula C. Bermúdez Jaramillo currently works at the Departamento de salud pública y epidemiología, Pontificia Universidad Javeriana - Cali. Their most recent proyect is 'Barriers and facilitators of adherence to the cervical cancer preventive program'.

Members (5)

Marcela Arrivillaga
  • Pontificia Universidad Javeriana - Cali
Juan Pablo García-Cifuentes
  • Pontificia Universidad Javeriana - Cali
Diana M Castrillón Libreros
  • Red de Salud de Ladera ESE
Jorge Botero
  • Pontificia Universidad Javeriana - Cali
PAULA C. BERMÚDEZ JARAMILLO
PAULA C. BERMÚDEZ JARAMILLO
  • Not confirmed yet
Lorena E. Castillo Castillo
Lorena E. Castillo Castillo
  • Not confirmed yet
Daniela Neira Acevedo
Daniela Neira Acevedo
  • Not confirmed yet
Daniela Neira
Daniela Neira
  • Not confirmed yet
Carlos Vergara-Sanchez
Carlos Vergara-Sanchez
  • Not confirmed yet