Bielka Carvajal

Dr. Bielka Carvajal

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 September 2017 in Frontiers in Pediatrics
Verified
Journal Article
Open access
FMFabien Magne
Fabien Magne
ASAlexa Puchi Silva
Alexa Puchi Silva
BCBielka Carvajal
Bielka Carvajal
MGMartin Gotteland
Martin Gotteland
The current recommendation of the World Health Organization (WHO) regarding cesarean section (C-section) is that this clinical practice should be carried out only under specific conditions, when the health or life of the mother/newborn dyad is threatened, and that its use should not exceed 10-15% of the total deliveries. However, over the last few decades, the frequency of C-section delivery in medium- and high-income countries has rapidly increased worldwide. This review describes the evolution of this procedure in Latin-American countries, showing that today more than half of newborns in the region are delivered by C-section. Given that C-section delivery is more expensive than vaginal delivery, its use has increased more rapidly in the private than the public sector; nevertheless, the prevalence of C-section deliveries in the public sector is higher than the WHO’s recommendations, and continues to increase, representing a growing challenge for Latin America. Although the medium- and long-term consequences of C-section delivery, as opposed to vaginal delivery, on the infant health are unclear, epidemiological studies suggest that it is associated with higher risk of developing asthma, food allergy, type-1 diabetes and obesity during infancy. These findings are important, as the incidence of these diseases in the Latin American pediatric population is also increasing, particularly obesity. Though the link between these diseases and delivery mode remains controversial, recent studies indicate that the establishment of the gut microbiota is delayed in infants born by C-section during the postnatal period, i.e. during a critical developmental window for the maturation of the newborn's immune system. This delay may favor the subsequent development of inflammatory and metabolic disorders during infancy. Accordingly, from a public health perspective, it is important to slow down and eventually reverse the pattern of increased C-section use in the affected populations.

17 June 2020 in Frontiers in Nutrition
Verified
Journal Article
Open access
PDF file
VSVerónica Sambra
Verónica Sambra
SLSandra López-Arana
Sandra López-Arana
PCPaola Cáceres
Paola Cáceres
KAKaren Abrigo
Karen Abrigo
JCJaviera Collinao
Javiera Collinao
MGMartin Gotteland
Martin Gotteland
The prevalence of obesity among Chilean adults and children is one of the highest worldwide. To fight the constant increase of non-communicable diseases and the growing sales of sugar-sweetened beverages, the Chilean government recently enacted a new Law of Food Labeling and Advertising imposing the application of front-of-package warning labels in foodstuffs whose composition exceeds limits for critical nutrients including sugar. Accordingly, food companies have been reformulating their products, incorporating non-caloric sweeteners (NCSs) in partial or total replacement of sucrose. The number of NCS-containing foods and beverages, therefore, has been increasing in the last years. This study aims to identify the NCS-containing products from different food/beverage categories currently available on the Chilean market. Nineteen supermarkets and 13 food web pages were visited by trained dietitians to carry out a systematic search of ingredient information from the different food categories. Overall, 1,489 products were analyzed, of which 815 (55.5%) contained at least one NCS, being this proportion particularly high, compared to other countries. 67.1% of the dairy products, 31.5% of the cereal products, 49% of the processed fruits, 74.3% of the non-alcoholic beverages, and 46.2% of sweets and other desserts contained NCS. Considering the food categories more specifically oriented to children, NCSs were present in 98.8% of powder juices, 98.3% of the flavored milks, 91.2% of jellies, and 79% of the dairy desserts. Sucralose and steviol glycosides were the most widely used NCSs, these sweeteners being present, alone or mixed with other, in 73.5 and 39.7% of the NCS-containing products, respectively, while the use of saccharin and cyclamate was low. In addition, 80 tabletop NCSs were available in the local market, 91.2% of them being sucralose and steviol glycosides (alone or combined). The high number of food products containing steviol glycosides makes very plausible that the daily consumption of this NCS in the pediatric populations could exceed its acceptable daily intake (ADI). The fact that there are no NCS-free foods alternatives for certain food categories, especially for children, is worrying.

28 August 2023 in Women and Birth
Verified
Journal Article
Open access
BCBielka Carvajal
Bielka Carvajal
AHAngela Hancock
Angela Hancock
KLKatharine Lewney
Katharine Lewney
KHKaren Hagan
Karen Hagan
SJSarah Jamieson
Sarah Jamieson
ACAlison Cooke
Alison Cooke
In the United Kingdom (UK), a critical shortage of midwives puts pressure on the already overworked midwives working in maternity services. Considering the challenges that midwives in the UK face, this rapid review was conducted to inform a larger-scale initiative to improve the working conditions of midwives in an acute NHS Trust in the Midlands area of the UK. To describe midwives' perceptions and experiences of positive practice environments. A search strategy to identify literature about midwives' perceptions and experiences of positive practice environments was conducted in Medline, CINAHL Plus and Embase databases. Literature screening was conducted independently in two steps using an eligibility tool. The articles' quality assessment was conducted using the Mixed Method Appraisal Tool. Data were extracted using the Job Quality framework and managed using NVivo12. Seventy articles were included in this review. Midwives' working conditions can be improved in all seven areas of the Job Quality framework. Most articles in the review reported the negative aspects of midwives' working environments, making it challenging for the team to define a positive practice environment for midwives. Despite this, authors discuss that a positive practice environment is at least sustained by ensuring midwives' ability to provide care; providing good employment conditions; developing respectful organisations; and increasing team resources, such as those that improve team resilience. Midwives' working conditions are universally challenging. Failure to address the situation will compromise recruitment and retention, increasing the shortage of midwives. Provision of safe and respectful care appears to be directly linked to midwives' safe and respectful working conditions.

11 May 2022 in Midwifery
Verified
Journal Article
Open access
BCBielka Carvajal
Bielka Carvajal
HWHelen White
Helen White
JBJane brooks
Jane brooks
ATAnn M Thomson
Ann M Thomson
ACAlison Cooke
Alison Cooke
Policy implementation can be affected by what individuals believe to be right and wrong. When implementing abortion policies, providers' moral beliefs can be relevant in the success of the implementation process. Considering that midwives and nurses are direct providers of abortion care, exploring their experiences related to abortion policy implementation could provide helpful information to prevent policy failure. Systematic integrative review. The studies were identified through an electronic search strategy and the screening of the reference lists of all selected articles. Studies were retrieved from eight medical and social sciences databases. Thirty-one studies focused on midwives' and nurses' experiences of implementing abortion policies, irrespective of setting or age of study were included in this review. Studies included used qualitative, quantitative and mixed methods. Study quality was appraised using the Mixed Method Appraisal Tool version 2018. No study was excluded from this review based on its quality appraisal. In terms of their quality, most studies included in this review were conducted appropriately. Three superordinate themes represent the main elements that challenge midwives and nurses when providing abortion care. The first superordinate theme identified that many midwives and nurses believed fetuses are sentient beings, making them worthy of compassionate treatment. The next superordinate theme was focused on preferences and expectations about abortion care. Finally, the third superordinate theme illustrates midwives' and nurses' experiences with other team members, highlights their creativity when challenged with insufficient resources and provides a glimpse of the numerous techniques used for coping with work-related stress. Midwives and nurses worldwide face multiple challenges when providing abortion care. Guidelines aiming to support policy implementation should consider how abortion affects healthcare providers and suggest appropriate measures to reduce these and other barriers. Midwives and nurses technical and ethical competencies for abortion provision should be strengthened.

11 August 2017 in Culture, Health & Sexuality
Verified
Journal Article
Closed access
JBJulieta Belmar
Julieta Belmar
VÁValeria Stuardo Ávila
Valeria Stuardo Ávila
CFCinta Folch
Cinta Folch
BCBielka Carvajal
Bielka Carvajal
MCMaria José Clunes
Maria José Clunes
JCJordi Casabona
Jordi Casabona
In Chile, sex work takes place covertly in a variety of venues and locations. Formative research using time-location sampling methods is important in order to understand the nature of this diversity. This study used qualitative methods to develop a typology of female sex work in the Metropolitan Region of Santiago, Chile, using semi-structured interviews, focus groups and ethnographic fieldwork during visits to sex work venues. The study identified seven types of venue, which reflect the context and regulatory framework of the country and the structural vulnerabilities that affect female sex workers in Chile. These venues and locations include: cafés con piernas (coffee with legs); nightclubs, topless bars and cabarets; brothels; hotels; street and highway soliciting; massage parlours; and private residences. Formative research methods were helpful in identifying and characterising the venues and locations in which sex work occurred. Barriers to accessing and mapping specific locations were also identified. Recommendations for addressing these barriers include working with non-governmental organisations to map venues and initiate contact with the populations of interest. A comprehensive typology of sex work in the Metropolitan Region of Santiago, Chile, is an essential element for future time-location sampling and bio-behavioural research in the context of second-generation surveillance for HIV and sexually transmitted infections in Chile.

1 September 2021 in Revista médica de Chile
Verified
Journal Article
Open access
PDF file
BCBielka Carvajal
Bielka Carvajal
JSJame Rebolledo S.
Jame Rebolledo S.
NFNinoska Flández
Ninoska Flández
TFTania Fariña
Tania Fariña
VSVianney Sierralta
Vianney Sierralta
Las personas con discapacidad tienen dificultades específicas para acceder a los servicios, entre ellas, el requerimiento de contar de información en formato accesible3. En particular, la comunicación a través de lengua de señas es crítica para que el mensaje entregado llegue a una porción importante de la comunidad Sorda, quienes de acuerdo con la literatura, presentan menores índices de alfabetización en salud, poco acceso a prevención y mayores barreras en la comunicación para acceder a servicios sanitarios que la población general4–6. En esta materia, el Comité de Naciones Unidas sobre los Derechos de las Personas con Discapacidad exhortó a las autoridades internacionales a tomar medidas para responder adecuadamente durante la pandemia, que aseguren la inclusión y la participación efectiva de las personas con discapacidad, es decir, no permitir la discriminación7.