CRIS

Permanent URI for this communityhttps://investigadores.udd.cl/handle/123456789/1

Browse

Search Results

Now showing 1 - 10 of 20
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Exploring the feasibility and effectiveness of a naturalistic family centered intervention to enhance early interactions in toddlers with Down syndrome
    (Springer Science and Business Media LLC, 2025-04-09)
    Ana Mendoza-García
    ;
    Andrés Aparicio
    ;
    Paulina Sofía Arango
    ;
    This study analyses the feasibility and effectiveness of BabyMICARE, a manualised intervention programme aimed at improving the interactions between caregivers and infants and toddlers with Down syndrome. The programme’s goal is to enhance caregivers’ sensitivity and reduce directivity during early interactions, particularly during play and daily routines. A pre-test and post-test design was used with 40 dyads of infants with Down syndrome and their caregivers, who were divided into a control group (n = 20) and an intervention group (n = 20), based on baseline scores in key interaction subscales. Sessions were conducted over 10 weeks by trained psychologists. Parent-infant interaction was assessed using the MACI coding system, which measures aspects such as sensitive responsiveness, directivity and the level of reciprocity between the parent and the child. The programme showed high feasibility, with a 100% attendance rate but some rescheduling. Caregivers evaluated it positively. The intervention group demonstrated significant improvements in five of eight MACI scales, particularly in sensitive responsiveness and nondirectiveness, while no changes were observed in the control group. The results suggest that BabyMICARE is a feasible and effective intervention for promoting more responsive, less directive interactions, which may be crucial in fostering children’s development.
      3
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Exploring the characteristics of cancer-centred civil society organisations in Chile: A qualitative study
    (Public Library of Science (PLoS), 2025-05-16)
    Antonia Roberts
    ;
    Francisca Vezzani
    ;
    ; ;
    In Chile, civil society organisations in health have been historically active in population health and specifically in cancer; they have had an important role in addressing patients’ and families’ necessities. Although they occupy a central role, there is no clarity about who they are, how they are organised, the goals that guide their performance and how they materialize social participation in health. Based on that, this study aimed to explore the characteristics of civil society organisations that work in cancer in Chile and to identify the networks they build with other actors to achieve their goals. Materials and methods Qualitative case study using semi-structured online interviews with organisation representatives, politicians, decision-makers and academics related to cancer in Chile. Content analysis was performed, admitting emerging categories from the participants’ narratives.</jats:p> Results Three main profiles of organisations were identified: (i) Long-established organisations focused on influencing public policy and decision-making in cancer, (ii) Growing organisations focused on informing and supporting families and patients, (iii) Newly established organisations focused on patient well-being, such as sports activities. Relationships between groups and other actors involve perceived benefits like the growth of the organisations and funding for activities. However, perceived barriers and inequities are also identified, mainly lack of financial resources, competition between organisations and insufficient information. Discussion The objectives of civil society organisations in cancer are diverse and reflect multiple ways of practising social participation in health. Tensions generate unequal participation and missed opportunities to promote public health in cancer in Chile. The study highlights the importance of recognising cancer social organisations as essential actors in public health. It is crucial to involve them in formulating and implementing comprehensive responses to maximise the opportunities for progress in this field.
      4
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Tobacco endgame in the WHO European Region: Feasibility
    in light of current tobacco control status
    (2023)
    Adrián González-Marrón
    ;
    Helena Koprivnikar
    ;
    Judit Tisza
    ;
    Zsuzsa Cselkó
    ;
    Angeliki Lambrou
      10Scopus© Citations 10
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Outcomes of hematopoietic stem cell gene therapy for Wiskott-Aldrich syndrome
    (2023)
    Roxane Labrosse
    ;
    Julia I. Chu
    ;
    Myriam A. Armant
    ;
    John K. Everett
    ;
    Danilo Pellin
    <jats:title>Abstract</jats:title> <jats:p>Wiskott-Aldrich syndrome (WAS) is a rare X-linked disorder characterized by combined immunodeficiency, eczema, microthrombocytopenia, autoimmunity, and lymphoid malignancies. Gene therapy (GT) to modify autologous CD34+ cells is an emerging alternative treatment with advantages over standard allogeneic hematopoietic stem cell transplantation for patients who lack well-matched donors, avoiding graft-versus-host-disease. We report the outcomes of a phase 1/2 clinical trial in which 5 patients with severe WAS underwent GT using a self-inactivating lentiviral vector expressing the human WAS complementary DNA under the control of a 1.6-kB fragment of the autologous promoter after busulfan and fludarabine conditioning. All patients were alive and well with sustained multilineage vector gene marking (median follow-up: 7.6 years). Clinical improvement of eczema, infections, and bleeding diathesis was universal. Immune function was consistently improved despite subphysiologic levels of transgenic WAS protein expression. Improvements in platelet count and cytoskeletal function in myeloid cells were most prominent in patients with high vector copy number in the transduced product. Two patients with a history of autoimmunity had flares of autoimmunity after GT, despite similar percentages of WAS protein–expressing cells and gene marking to those without autoimmunity. Patients with flares of autoimmunity demonstrated poor numerical recovery of T cells and regulatory T cells (Tregs), interleukin-10–producing regulatory B cells (Bregs), and transitional B cells. Thus, recovery of the Breg compartment, along with Tregs appears to be protective against development of autoimmunity after GT. These results indicate that clinical and laboratory manifestations of WAS are improved with GT with an acceptable safety profile. This trial is registered at clinicaltrials.gov as #NCT01410825.</jats:p>
      12Scopus© Citations 30
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Usability and feasibility of PreventS-MD web app for stroke prevention
    (2023)
    Valery L Feigin
    ;
    Rita Krishnamurthi
    ;
    Oleg Medvedev
    ;
    Alexander Merkin
    ;
    Balakrishnan Nair
    <jats:sec><jats:title>Background:</jats:title><jats:p> Most strokes and cardiovascular diseases (CVDs) are potentially preventable if their risk factors are identified and well controlled. Digital platforms, such as the PreventS-MD web app (PreventS-MD) may aid health care professionals (HCPs) in assessing and managing risk factors and promoting lifestyle changes for their patients. </jats:p></jats:sec><jats:sec><jats:title>Methods:</jats:title><jats:p> This is a mixed-methods cross-sectional two-phase survey using a largely positivist (quantitative and qualitative) framework. During Phase 1, a prototype of PreventS-MD was tested internationally by 59 of 69 consenting HCPs of different backgrounds, age, sex, working experience, and specialties using hypothetical data. Collected comments/suggestions from the study HCPs in Phase 1 were reviewed and implemented. In Phase 2, a near-final version of PreventS-MD was developed and tested by 58 of 72 consenting HCPs using both hypothetical and real patient (n = 10) data. Qualitative semi-structured interviews with real patients (n = 10) were conducted, and 1 month adherence to the preventive recommendations was assessed by self-reporting. The four System Usability Scale (SUS) groups of scores (0–50 unacceptable; 51–68 poor; 68–80.3 good; &gt;80.3 excellent) were used to determine usability of PreventS-MD. </jats:p></jats:sec><jats:sec><jats:title>Findings:</jats:title><jats:p> Ninety-nine HCPs from 27 countries (45% from low- to middle-income countries) participated in the study, and out of them, 10 HCPs were involved in the development of PreventS before the study, and therefore were not involved in the survey. Of the remaining 89 HCPs, 69 consented to the first phase of the survey, and 59 of them completed the first phase of the survey (response rate 86%), and 58 completed the second phase of the survey (response rate 84%). The SUS scores supported good usability of the prototype (mean score = 80.2; 95% CI [77.0–84.0]) and excellent usability of the final version of PreventS-MD (mean score = 81.7; 95% CI [79.1–84.3]) in the field. Scores were not affected by the age, sex, working experience, or specialty of the HCPs. One-month follow-up of the patients confirmed the high level of satisfaction/acceptability of PreventS-MD and (100%) adherence to the recommendations. </jats:p></jats:sec><jats:sec><jats:title>Interpretation:</jats:title><jats:p> The PreventS-MD web app has a high level of usability, feasibility, and satisfaction by HCPs and individuals at risk of stroke/CVD. Individuals at risk of stroke/CVD demonstrated a high level of confidence and motivation in following and adhering to preventive recommendations generated by PreventS-MD. </jats:p></jats:sec>
    Scopus© Citations 9  2
  • Some of the metrics are blocked by your 
    Item type:Publication,
    A complex intervention to support breastfeeding: A feasibility and acceptability study
    (2023)
    Camila Lucchini‐Raies
    ;
    Francisca Marquez‐Doren
    ;
    ;
    Solange Campos
    ;
    Paulina Beca
    <jats:title>Abstract</jats:title><jats:sec><jats:title>Aims</jats:title><jats:p>The aims of this study are to assess the acceptability and feasibility of a multicomponent intervention to support breastfeeding women and their families and explore its effectiveness.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>A pilot study with control and intervention groups was conducted using the complex intervention framework in two primary healthcare centres. Overall, 44 childbearing women, their partners/relatives and 20 healthcare professionals participated in the study. The intervention's feasibility and acceptability were measured. The percentage of exclusive breastfeeding rates and women's self‐efficacy were measured at pre‐intervention, at 10 days postpartum, and again at 2, 4 and 6 months postpartum. Postpartum depression risk was measured at 2 and 6 months postpartum. Professional self‐efficacy was measured at pre‐intervention and 3 months later.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>The intervention was feasible and acceptable. No difference in self‐efficacy existed between the intervention and control groups. Preliminary effects of the intervention were found in exclusive breastfeeding percentage and postpartum depression risk in the intervention group.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>The intervention is feasible and acceptable. The results are promising not only for breastfeeding maintenance but also for preventing postpartum depression and recovering exclusive breastfeeding during pandemics.</jats:p></jats:sec><jats:sec><jats:title>Trial registration</jats:title><jats:p><jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://ClinicalTrials.gov">ClinicalTrials.gov</jats:ext-link> ID: NCT03944642.</jats:p></jats:sec>
      1
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Protocol for outpatient management in cleft lip and palate repair
    (2021)
    María Santos
    ;
    Jacqueline García
    ;
    Stephanie Graf
    ;
    Carlos Giugliano
      11Scopus© Citations 7
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Promoting the Participation of “Hard-to-Reach” Migrant Populations in Qualitative Public Health Research during the COVID-19 Pandemic in Chile
    (2023)
    Alice Blukacz
    ;
    ; ;
    María Inés Álvarez
    ;
    Paula Madrid
    <jats:p>The COVID-19 pandemic has further deepened socioeconomic and health inequities worldwide, especially among populations experiencing social vulnerability, such as international migrants. Sustained lockdowns and social distancing have raised challenges to conducting public health research with hard-to-reach populations. This study aims at exploring strategies to recruit “hard-to-reach” international migrants for qualitative public health research during the pandemic in Chile, based on the authors’ experience. A retrospective qualitative evaluation process was carried out on the recruitment processes of three qualitative research projects focused on international migrants in Chile. All projects were implemented during the COVID-19 pandemic, demanding complementary and flexible strategies: (i) social media; (ii) snowball sampling; (iii) referrals from social workers and pro-migrant and migrant-led organizations; (iv) vaccination centers and healthcare centers; and (v) community-based recruitment. The strategies are qualitatively evaluated around seven emerging qualitative categories: (i) feasibility during lockdown periods; (ii) speed of recruitment; (iii) geographical coverage; (iv) sample diversity; (v) proportion of successful interviews; (vi) ethical considerations; and (vii) cost. Engaging hard-to-reach international migrants in public health research during the pandemic required constantly adapting recruitment strategies. Furthermore, relying on strategies that were not only Internet-based promoted the participation of populations with limited access to the Internet and low-digital literacy.</jats:p>
    Scopus© Citations 10  1
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Nanoscopic Distal Biceps Repair With Cortical Button and Interference Screw
    (2023)
    Felipe Reinares
    ;
    Francisca de la Maza
    ;
    Joaquin de la Paz
    ;
    Manuela Angulo
    ;
    Juan Jose Lecaros
      3
  • Some of the metrics are blocked by your 
    Item type:Publication,
    Local pulmonary drug delivery in the preterm rabbit: feasibility and efficacy of daily intratracheal injections
    (2019)
    Thomas Salaets
    ;
    André Gie
    ;
    ;
    Margo Aertgeerts
    ;
    Olivier Gheysens
    <jats:p> Recent clinical trials in newborns have successfully used surfactant as a drug carrier for an active compound, to minimize systemic exposure. To investigate the translational potential of surfactant-compound mixtures and other local therapeutics, a relevant animal model is required in which intratracheal administration for maximal local deposition is technically possible and well tolerated. Preterm rabbit pups (born at 28 days of gestation) were exposed to either hyperoxia or normoxia and randomized to receive daily intratracheal surfactant, daily intratracheal saline, or no injections for 7 days. At day 7, the overall lung function and morphology were assessed. Efficacy in terms of distribution was assessed by micro-PET-CT on both day 0 and day 7. Lung function as well as parenchymal and vascular structure were altered by hyperoxia, thereby reproducing a phenotype reminiscent of bronchopulmonary dysplasia (BPD). Neither intratracheal surfactant nor saline affected the survival or the hyperoxia-induced BPD phenotype of the pups. Using PET-CT, we demonstrate that 82.5% of the injected radioactive tracer goes and remains in the lungs, with a decrease of only 4% after 150 min. Surfactant and saline can safely and effectively be administered in spontaneously breathing preterm rabbits. The described model and method enable researchers to evaluate intratracheal pharmacological interventions for the treatment of BPD. </jats:p>
    Scopus© Citations 21  1