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Albarracín-Navas L, Almonte-Becerril M, Guerrero E, Rivadeneira J, Telechea-Fernández M, Guzmán E, Calderón F, Hernández-Leal MJ, Otzen T, Manterola C, Duque G, Riffo-Campos ÁL. Differential Protein-Coding Gene Expression Profile in Patients with Prostate Cancer. Biomedicines 2024; 12:2509. [PMID: 39595075 PMCID: PMC11592252 DOI: 10.3390/biomedicines12112509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/02/2024] [Accepted: 08/13/2024] [Indexed: 11/28/2024] Open
Abstract
BACKGROUND Prostate cancer is the second most common neoplasm in men, with projections estimating over one million new cases by 2045. Differentially expressed genes can significantly enhance the diagnosis, treatment, monitoring, and prognosis of this disease. PURPOSE to systematically review and analyze validated differentially expressed mRNAs in prostate cancer patients to propose a robust molecular profile for clinical diagnostics. METHODS A systematic review was conducted following PRISMA guidelines, searching literature databases for mRNAs with validated differential expression in adult prostate cancer patients. Identified mRNAs were analyzed using STRING, Cytoscape, and DrugBank to explore protein-protein interactions and potential drug targets. RESULTS A total of 5003 participants from Europe, Asia, America, and Oceania were included, and 144 mRNAs (p < 0.05) were reported across 75 primary articles, predominantly validated using RT-qPCR with tissue samples. Among these, at least 36 mRNAs were identified as targets for cancer-related drugs. Enrichment analysis revealed the top pathways were associated with cancer, including specific prostate cancer terms. Key nodes emerged as hubs in the protein-protein interaction network. CONCLUSION Based on our comprehensive in silico analysis of validated differentially expressed mRNAs, we propose a molecular profile of twenty-five mRNAs with significant potential for clinical diagnosis of prostate cancer. These findings offer a valuable foundation for developing precision oncology strategies to improve patient outcomes.
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Rivadeneira J, Fuenmayor-González L, Jácome-García M, Flores-Lastra N, Delgado H, Otzen T. Impact of COVID-19 on the prevalence of dyslipidemia in Ecuador: A cross-sectional study between 2017 and 2022. Aten Primaria 2024; 57:103007. [PMID: 39426052 PMCID: PMC11533009 DOI: 10.1016/j.aprim.2024.103007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/25/2024] [Accepted: 05/16/2024] [Indexed: 10/21/2024] Open
Abstract
OBJECTIVE To determine changes in the prevalence of dyslipidemias during the pre-COVID-19 and COVID-19 years in three regions of Ecuador. DESIGN Cross-sectional study. SITE: Quito, Guayaquil, and El Coca. PARTICIPANTS Adults with cholesterol, HDL, LDL, and triglyceride levels at primary care centers from January 2017 to December 2022. INTERVENTIONS Not applicable. MAIN MEASUREMENTS Data were obtained from five BIODIMED primary care centers. Cholesterol, HDL, LDL, and triglyceride levels were classified according to the ATP III guidelines. Dyslipidemia was considered present when one or more parameters exceeded specific thresholds. Sociodemographic variables and the year of examination were included as independent variables. RESULTS The study analyzed 110,521 participants' laboratory results, where 65.3% were males and an average age of 38±12 years. The study spanned the Andean (72.4%), Coast (15.4%), and Amazonic region (12.3%). Pre-pandemic exams constituted 60.9% of the sample. The prevalence of dyslipidemia increased gradually from 43.1% in 2017 to 64.1% in 2022. Cholesterol levels, HDL, and LDL exhibited changes during the pandemic, with an increased risk of hypercholesterolemia, low HDL, and high LDL. CONCLUSIONS During the COVID-19 pandemic, a notable increase in the prevalence of dyslipidemias, including hypercholesterolemia, high triglycerides, and high LDL, was determined across three regions in Ecuador.
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Holguín-Carvajal JP, Otzen T, Sanhueza A, Castillo Á, Manterola C, Muñoz G, García-Aguilera F, Salgado-Castillo F. Trends in traffic accident mortality and social inequalities in Ecuador from 2011 to 2022. BMC Public Health 2024; 24:1951. [PMID: 39034408 PMCID: PMC11264957 DOI: 10.1186/s12889-024-19494-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND Traffic accidents (TA) remain a significant global public health concern, impacting low-and middle-income countries. This study aimed to describe the trend in TA mortality and inequalities in Ecuador for 2011-2022, distributed by year, gender, age group, geographical location, type of accident, and social inequalities. METHODS An ecological study was conducted using INEC national-level data on TA fatalities in Ecuador. Mortality rates were calculated per 100,000 population and analyzed by year, gender, age group, geographic region, and accident type. Annual percentage variation (APV) was determined using linear regression models. Inequality analyses examined associations between TA mortality and socioeconomic factors like per capita income and literacy rates. Complex measures such as the Slope Inequality Index (SII) were calculated to assess the magnitude of inequalities. RESULTS There were 38,355 TA fatalities in Ecuador from 2011 to 2022, with an overall mortality rate of 19.4 per 100,000 inhabitants. The rate showed a non-significant decreasing trend (APV - 0.4%, p = 0.280). Males had significantly higher mortality rates than females (31.99 vs. 7.19 per 100,000), with the gender gap widening over time (APV 0.85%, p = 0.003). The Amazon region had the highest rate (24.4 per 100,000), followed by the Coast (20.4 per 100,000). Adults aged ≥ 60 years had the highest mortality (31.0 per 100,000), followed by those aged 25-40 years (28.6 per 100,000). The ≥ 60 age group showed the most significant rate decrease over time (APV - 2.25%, p < 0.001). Pedestrians were the most affected group after excluding unspecified accidents, with a notable decreasing trend (APV - 5.68%, p < 0.001). Motorcyclist fatalities showed an increasing trend, ranking third in TA-related deaths. Lower literacy rates and per capita income were associated with higher TA mortality risks. Inequality in TA mortality between provinces with the highest and lowest per capita income increased by 247.7% from 2011 to 2019, as measured by the SII. CONCLUSION While overall TA mortality slightly decreased in Ecuador, significant disparities persist across demographic groups and geographic regions. Older adults, males, pedestrians, and economically disadvantaged populations face disproportionately higher risks. The increasing trend in motorcycle-related fatalities and widening socioeconomic inequalities are particularly concerning.
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Espinosa ME, Sánchez R, Otzen T, Bautista-Valarezo E, Aguiar S, Corrales-Gutierrez I, Leon-Larios F, Manterola C. Phenotypic Characterization of Patients with Polycystic Ovary Syndrome in a Population from the Ecuadorian Andes: A Cross-Sectional Study. J Clin Med 2024; 13:2376. [PMID: 38673649 PMCID: PMC11051537 DOI: 10.3390/jcm13082376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/08/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Background: Polycystic ovary syndrome (PCOS) is a highly prevalent endocrine-metabolic disorder in women of reproductive age. Diagnosis is based on the evidence-based international guideline 2018 and the Rotterdam Consensus to classify PCOS phenotypes. This study aims to characterize the biodemographic, clinical, metabolic, and reproductive variables and their relationship with PCOS phenotypes in a population from the Ecuadorian Andes. Methodology: A cross-sectional study was conducted with a non-random consecutive sample of 92 women who attended the outpatient gynecology and endocrinology clinic at the Hospital of the Technical University of Loja (UTPL)-Santa Inés, Loja, Ecuador, between January 2022 and July 2023. Descriptive statistics, mean calculations, standard deviation, parametric and nonparametric tests, odds ratios (OR), confidence intervals (CI), and p-values were employed. Results: The average age was 22 ± 3.4 years, with a predominantly mestizo, urban, single, highly educated, and medium-high socioeconomic level population. It was identified that phenotypes A + B are at a higher risk of developing oligomenorrhea and hypertriglyceridemia compared to phenotypes C + D, with statistically significant differences (p < 0.05). Furthermore, in terms of reproductive variables, phenotypes A + B exhibit a significantly higher frequency of elevated anti-Müllerian hormone (AMH) compared to phenotypes C + D, also with statistical significance (p < 0.05). Conclusions: The classical phenotypes A and B of PCOS are the most common in Ecuadorian Andean women and carry a higher risk of insulin resistance, anovulation, metabolic disorders, and elevated triglyceride levels compared to phenotypes C and D. Ethnic diversity and sociocultural habits influence the prevalence and clinical manifestations of these phenotypes.
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Manterola C, Rivadeneira J, Rojas-Pincheira C, Otzen T, Delgado H, Sotelo C, Sanhueza A. Cholangiohydatidosis. Clinical features, postoperative complications and hospital mortality. A systematic review. PLoS Negl Trop Dis 2024; 18:e0011558. [PMID: 38452054 PMCID: PMC10950226 DOI: 10.1371/journal.pntd.0011558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 03/19/2024] [Accepted: 02/14/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Cholangiohydatidosis (CH) is an evolutionary complication of hepatic cystic echinococcosis, associated with increased morbidity and mortality. The aim of this study was to describe the available evidence regarding clinical characteristics of CH, postoperative complications and hospital mortality. METHODOLOGY/PRINCIPAL FINDINGS Systematic review. Studies related to CH with no language or publication restriction were included. Sensitive searches were performed in Trip Database, SciELO, BIREME-BVS, WoS, PubMed, EMBASE and SCOPUS. MeSH and free terms were used, including articles up to April 2023. The main outcome variables were postoperative complications and hospital mortality; the secondary ones were publication year, origin and design of primary studies, main clinical manifestation, anatomical location and type of cysts, hospital stay, surgical procedure performed, reinterventions; and methodological quality of primary studies, which was assessed using MInCir-T and MInCir-P scales. Descriptive statistics, calculation of weighted averages and their comparison by least squares logistic regression were applied. 446 studies were retrieved from the searches performed, 102 of which met the inclusion and exclusion criteria. The studies analyzed represent 1241 patients. The highest proportion of articles was published in the last decade (39.2%). Reports are mainly from Turkey (28.4%), Greece (9.8%), Morocco and Spain (8.8% each). With a weighted mean of 14.3 days of hospital stance; it was verified that 26.2% of patients developed postoperative complications (74,3% Clavien y Dindo III y IV), 6.7% needed re-interventions, and 3.7% died. When comparing the variables age, postoperative complications, hospital mortality, and reinterventions in two periods of time (1982-2006 vs. 2007-2023), no statistically significant differences were found. When applying the MInCir-T and MInCir-P scales, the methodological quality of the primary studies was 9.6±1.1 and 14.5±4.3 points, respectively. CONCLUSION/SIGNIFICANCE CH is associated with severe postoperative complications and significant hospital mortality, independent of the development of therapeutic support associated with the passage of time.
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Manterola C, Rivadeneira J, Rojas C, Otzen T. Prevalence of cystic echinococcosis in relatives of patients undergoing surgery for hepatic cystic echinococcosis in an endemic region. PLoS Negl Trop Dis 2023; 17:e0011813. [PMID: 38064500 PMCID: PMC10732410 DOI: 10.1371/journal.pntd.0011813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/20/2023] [Accepted: 11/21/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Cystic echinococcosis (CE) is an endemic disease in southern Chile. The aim of this study was to ascertain the prevalence of CE among relatives of patients who underwent surgical intervention for this disease in Cautín, a province of southern Chile. METHODOLOGY/PRINCIPAL FINDINGS Cross-sectional study. Relatives of patients who underwent surgery for hepatic echinococcosis (HE), who lived at the same address, during the period 2000-2020 were studied. A total of 288 relatives of 322 patients who underwent surgery for HE participated in a CE screening. All these relatives were interviewed and underwent abdominal ultrasonography, chest X-ray and immunodiagnostic studies (relatives who had been diagnosed with or had undergone surgery for CE were excluded). Descriptive statistics were applied. Prevalence calculation, odds ratio (OR), and their respective 95% confidence intervals (95% CI) were determined. Abdominal or thoracic CE was verified in 42 relatives of subjects operated on for HE (mean age 41±8 years; 73.8% women; 38.1% of cases had two or more cysts), all of them new and asymptomatic cases. CE was detected in the lungs, liver, peritoneum, and spleen in 16.7%; 71.4%; 7.1%; and 4.8%, respectively. The overall prevalence of EQ during the studied time period was 14,6% (17.9% and 12.3% in relatives of first and second degree respectively (OR:1.56; CI 95%: 0.81; 3.01). CONCLUSION/SIGNIFICANCE There is a high prevalence of CE in relatives of patients undergoing surgery by this disease in the province of Cautín, Chile.
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Rodríguez-Núftez I, Monsalve-Campos K, Bretti MJ, Otzen T, Zenteno D. [Pediatric pulmonary rehabilitation in the light of qualitative research: What statistic cannot show]. ANDES PEDIATRICA : REVISTA CHILENA DE PEDIATRIA 2023; 94:392-400. [PMID: 37909943 DOI: 10.32641/andespediatr.v94i3.4494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 03/10/2023] [Indexed: 11/03/2023]
Abstract
Several studies have supported the positive effect of respiratory rehabilitation (RR) in children and adolescents (CRA) with chronic respiratory diseases (CRD); however, qualitative aspects related to the experiences and perceptions about RR have been scarcely studied. OBJECTIVE to analyze the qualitative evidence regarding the perceptions and experiences of patients, families and professionals related to the RR of children and adolescents with CKD. METHODS Review of qualitative studies in 5 databases. We used MeSH terms and free English-language terms grouped into three dimensions: patients, intervention, and research design. The study subjects had to be patients, their families, teachers or treating health teams. No restrictions were placed on language or year of publication. The search strategy was configured as follows: ((Cystic fibrosis) OR (Asthma) OR (Neuromuscular diseases)) AND ((Respiratory rehabilitation) OR (Exercise)) AND ((Qualitative research) OR (Phenomenology) OR (Grounded theory) OR (Ethnography)). Two independent authors analyzed atingent titles, abstracts and long texts. Finally, a qualitative description of the results was made. RESULTS Twenty-one qualitative studies were selected, all on patients, family members, teachers or professionals treating patients with cystic fibrosis (CF), asthma or neuromuscular diseases (NMD). Perception of benefits, parental influence, enjoyment of the protocols, and time required to engage in physical activity were categories identified in all three groups. Aspects such as perceived safety on school grounds and parental stress were specific categories, highlighted in the context of asthma and CF respectively. CONCLUSION Several general and specific factors of a qualitative nature influence the experience of children with CRD during RR. Future studies conducted in our cultural context should be conducted to confirm these results.
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Sotelo S, Manterola C, Otzen T, Morales E, Castillo I. Prevalence of Gastric Preneoplastic Lesions in First-Degree Relatives of Patients with Gastric Cancer: a Cross-Sectional Study. J Gastrointest Cancer 2023; 54:513-519. [PMID: 35488975 DOI: 10.1007/s12029-022-00827-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2022] [Indexed: 11/11/2022]
Abstract
PURPOSE Worldwide, gastric cancer (GC) is the 5th cancer with the highest incidence and the 4th in mortality. To reduce it, one strategy is to diagnose preneoplastic lesions (PNL): atrophic gastritis (AG), intestinal metaplasia (IM), and dysplasia (DYS); to form risk groups on which to focus surveillance efforts as are first-degree relatives (FDR). The aim of this study was to determine prevalence of gastric PNL in FDR of patients with GC, and to study association with sex, age, and Helicobacter pylorii (Hp) infection. METHODS Cross-sectional study. One hundred and ten FDR, aged between 50 and 65 years, 54.5 female, obtained through convenience sampling, were studied. Biodemographic data survey and upper gastrointestinal endoscopy with histological study were applied according to Sidney protocol, and focal lesions found. Diagnosis of these lesions and condition of mucosa was carried out by applying OLGA and OLGIM systems. Descriptive statistics, estimation of prevalence, odds ratio (OR), and 95% confidence intervals (95CI) were calculated. RESULTS Median age of study group was 56.5 years. Prevalence of PNL, AG, IM, and DYS were 86.4%, 82.7%, 54.5%, and 12.7% respectively. Advanced stages of OLGA and OLGIM were verified in 18.0% and 16.3% respectively. No association with sex, age, and Hp infection were found ([OR 3.10; 95CI 1.0; 9.64]; [OR 0.74; 95CI 0.26; 2.14]; [OR 0.58; 95CI 0.12; 2.77]) respectively. CONCLUSION FDR of patients with GC have a high prevalence of PNL, which makes them a risk group in which endoscopic surveillance should be applied.
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Flores-Lastra N, Rivadeneira-Dueñas J, Fuenmayor-González L, Guayasamín-Tipanta G, Jácome-García M, Otzen T, Manterola C. Safety Profile of Homologous and Heterologous Booster COVID-19 Vaccines in Physicians in Quito-Ecuador: A Cross-Sectional Study. Vaccines (Basel) 2023; 11:676. [PMID: 36992259 PMCID: PMC10052020 DOI: 10.3390/vaccines11030676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023] Open
Abstract
More than 600 healthcare workers died due to COVID-19 infection until January 2022 in Ecuador. Even though the COVID-19 vaccines are safe, local and systemic reactions were reported among physicians. This study aims to analyze the adverse events of COVID-19 with an emphasis on comparing the homologous and heterologous booster doses in physicians that received three approved vaccines in Ecuador. An electronic survey was performed in Quito, Ecuador, directed at physicians who were vaccinated with the three doses of COVID-19 vaccines. A total of 210 participants were analyzed after administering any dose of the vaccines. At least one AE was identified in 60.0% (126/210) of the sample after the first dose, 52.40% (110/210) after the second dose, and 75.2% (158/210) after the booster dose. The most frequent AEs were localized pain, myalgia, headache, and fever. At least one drug was used in 44.3% of the population after the first dose, 37.1% after the second dose, and 63.8% in the booster dose. Heterologous booster produces more AEs compared with homologous booster (80.1% vs. 53.8%), and 77.3% of participants reported that interfered with daily activities. Similar studies agree that reactogenicity occurs mainly with heterologous vaccination compared to homologous vaccination. This situation affected physicians' performance in daily activities and led them to use medication for the symptoms. In the future, it is recommended to perform cohort studies, where adverse events that are associated with vaccine boosters in the general population can be analyzed longitudinally, thus improving the level of evidence of the results.
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Duque G, Manterola C, Otzen T, Arias C, Palacios D, Mora M, Galindo B, Holguín JP, Albarracín L. Cancer Biomarkers in Liquid Biopsy for Early Detection of Breast
Cancer: A Systematic Review. Clin Med Insights Oncol 2022; 16:11795549221134831. [PMCID: PMC9634213 DOI: 10.1177/11795549221134831] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
Background: Breast cancer (BC) is the most common neoplasm in women worldwide. Liquid
biopsy (LB) is a non-invasive diagnostic technique that allows the analysis
of biomarkers in different body fluids, particularly in peripheral blood and
also in urine, saliva, nipple discharge, volatile respiratory fluids, nasal
secretions, breast milk, and tears. The objective was to analyze the
available evidence related to the use of biomarkers obtained by LB for the
early diagnosis of BC. Methods: Articles related to the use of biomarkers for the early diagnosis of BC due
to LB, published between 2010 and 2022, from the databases (WoS, EMBASE,
PubMed, and SCOPUS) were included. The MInCir diagnostic scale was applied
in the articles to determine their methodological quality (MQ). Descriptive
statistics were used, as well as determination of weighted averages of each
variable, to analyze the extracted data. Sensitivity, specificity, and area
under the curve values for specific biomarkers (individual or in panels) are
described. Results: In this systematic review (SR), 136 articles met the selection criteria,
representing 17 709 patients with BC. However, 95.6% were case-control
studies. In 96.3% of cases, LB was performed in peripheral blood samples.
Most of the articles were based on microRNA (miRNA) analysis. The mean MQ
score was 25/45 points. Sensitivity, specificity, and area under the curve
values for specific biomarkers (individual or in panels) have been
found. Conclusions: The determination of biomarkers through LB is a useful mechanism for the
diagnosis of BC. The analysis of miRNA in peripheral blood is the most
studied methodology. Our results indicate that LB has a high sensitivity and
specificity for the diagnosis of BC, especially in early stages.
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Wiederkehr K, Mai C, Cabezas JM, Rocha-Jiménez T, Otzen T, Montalva N, Calvo E, Castillo-Carniglia A. The Epidemiology of Violent Deaths in Chile between 2001 and 2018: Prevalence, Trends, and Correlates. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12791. [PMID: 36232089 PMCID: PMC9564384 DOI: 10.3390/ijerph191912791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/13/2022] [Accepted: 08/14/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Despite its enormous health and social burden, there are limited published studies describing the epidemiology of violent deaths in Chile. We described violent mortality rate trends in Chile between 2001 and 2018, its current spatial distribution and ecological level correlates. METHODS A population-based study using publicly accessible data. We calculated age-adjusted mortality rates per 100,000 persons for sex, age, intention, and mechanism of death. Next, we used linear regression to estimate time trends for sex and intention. We then employed hierarchical Poisson analyses to model the spatial distribution across 345 municipalities and the influence of six ecological level variables. RESULTS The average rate of violent death in Chile between 2001 and 2018 was 15.9 per 100,000 people, with the majority (70.3%) of these attributed to suicide. Suffocation was the most common mechanism of death for suicide (82.3%) and cut/pierce for homicide (43.1%), followed by firearm (33.2%). Violent deaths are trending downward in Chile across all categories except suicides by women, which have remained stable. Poverty rates and urban population were positively associated with violent mortality rates. CONCLUSIONS Although violence-related deaths seem to be decreasing, disparities across gender, age group, and geographic location may have continuing effects on mortality rates.
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Mora-Verdugo M, Duque-Proaño G, Villagran F, Otzen T. Análisis de la Tendencia de la Obesidad General en Ecuador en los años 2014 a 2016. INT J MORPHOL 2022. [DOI: 10.4067/s0717-95022022000501268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Játiva-Mariño E, Manterola C, Otzen T. [Inter- and intra-observer reliability of BITSS scale in the diagnosis and early follow-up of infectious diarrhea in children under 3 years of age]. ANDES PEDIATRICA : REVISTA CHILENA DE PEDIATRIA 2021; 92:937-942. [PMID: 35506807 DOI: 10.32641/andespediatr.v92i6.3809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/30/2021] [Indexed: 06/14/2023]
Abstract
INTRODUCTION The BITSS scale (Brussels Infant and Toddler Stool Scale) is an instrument used in the diagnosis and follow-up of infants and young children with infectious diarrhea. It consists of 7 pictures of diapers with different types of stools. OBJECTIVE To determine intra and interobserver reliability of the BITSS scale in infants and children using diapers. PATIENTS AND METHOD Reliability study. Three pediatri cians with experience in treating childhood infectious diarrhea were selected and, after training in applying the BITSS scale, they evaluated 70 pictures of stools obtained from pediatric patients, repre senting the 7 different types of stools categorized by the scale (10 images for each item). Two pediatri cians participated in the interobserver reliability study and performed a blind evaluation of the same pictures, assigning a value to each one, and the third pediatrician participated in the intra-observer analysis, evaluating 70 images on two different occasions, 15 days apart. Interobserver agreement and kappa statistics were determined for the scale and each scale item. RESULTS 280 measurements were made, 140 for the inter-observer reliability study and 140 for the intra-observer one. The degree of inter-observer agreement for the scale was 85.7%; with a kappa of 0.817 (95% CI 0.72; 0.92), and standard error of 0.05; and the intra-observer kappa for the scale was 0.883 (95% CI 0.80; 0.96), with a standard error of 0.04. CONCLUSIONS The BITSS scale has good intra- and interobserver reliability.
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Duque G, Manterola C, Otzen T, Arias C, Galindo B, Mora M, Guerrero E, García N. Clinical utility of liquid biopsy in breast cancer: A systematic review. Clin Genet 2021; 101:285-295. [PMID: 34687555 DOI: 10.1111/cge.14077] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 12/18/2022]
Abstract
Advancements in genetic sequencing techniques along with the identification of specific mutations and structural changes in multiple cancer genes, make it possible to identify circulating tumor cells and cell free nucleic acids as blood-based biomarkers, serving as a liquid biopsy (LB) with great utility for the diagnosis, treatment and follow-up of patients with neoplasms. This systematic review focuses on the clinical utility of LB in patients with breast cancer (BC). Articles published between 1990 and 2021 were included. Databases searched: Trip Database, WoS, EMBASE, PubMed, SCOPUS, and Clinical Keys. Variables studied: Publication year, country, number of cases, primary study design, LB detection methods, genes found, overall survival, disease-free survival, stage, response to treatment, clinical utility, BC molecular type, systemic treatment and methodological quality of primary studies. Of 2619 articles, 74 were retained representing 12 658 patients, mainly cohort studies (66.2%), the majority were from China (15%) and Japan (12.2%). All primary studies described clinical stage and type of systemic treatment used. Most used biomarker detection method: DNA (52.7%) and type of analysis: quantification of total cfDNA (35.1%). PIK3CA mutation was most frequent (62.9%). Evidence suggests clinically useful applications of BC. Though heterogeneous, publications suggest that LB will constitute part of the standard diagnostic-therapeutic process of BC.
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García-Méndez N, Briceño-Santana M, Totomoch-Serra A, Manterola C, Otzen T, Valdez PS, Campos-Durán R, Reyna GC. The hemodynamic effects of diazepam versus dexmedetomidine in the treatment of alcohol withdrawal syndrome: A randomized clinical trial. Med Clin (Barc) 2021; 157:561-568. [PMID: 33423824 DOI: 10.1016/j.medcli.2020.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/30/2020] [Accepted: 09/06/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Dexmedetomidine (DEX) is an alpha-2 adrenergic drug used for short sedation and as an alternative to diazepam (DZP) in the treatment of alcohol withdrawal syndrome (AWS). PURPOSE This study aims to compare the hemodynamic effect of DZP versus DEX on heart rate (HR) and blood pressure in patients with AWS. METHODS Prospective randomized clinical trial that includes 40 patients with AWS from Mérida, Yucatán, México. RESULTS Forty patients were randomly divided into two groups: one group DZP (n=20) patients received diazepam (doses 5-20mg IV) and the other group (n=20) received DEX (dexmedetomidine infusion .2-.7mcg/kg/min). We obtained statistical significance in sedation with the DEX group in the degree of traumatic brain injury I/II (p=.003). The DEX group remained haemodynamically stable in the first 24h, the mean HR (73.85±8.39) was significant comparing both groups (p=.002). In the comparison of the figures for the DEX group with the DZP (143.85±2.30-137.95±5.62) the SBP was significant with a (p=.0001). Furthermore, DEX treatment was shorter. CONCLUSION Although DEX is not indicated for the routine treatment of AWS, this study proposes a positive effect on HR, SBP and fewer days of treatment compared to the standard DZP treatment for AWS. Clinical Trials.gov ID: NCT03877120-https://clinicaltrials.gov/ct2/show/NCT03877120.
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Manterola C, Grande L, Bustos L, Otzen T. Prevalence of gastroesophageal reflux disease: a population-based cross-sectional study in southern Chile. Gastroenterol Rep (Oxf) 2020; 8:286-292. [PMID: 32843975 PMCID: PMC7434587 DOI: 10.1093/gastro/goaa002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/26/2019] [Accepted: 10/04/2019] [Indexed: 11/12/2022] Open
Abstract
Background This study assessed the prevalence of gastroesophageal reflux disease (GERD) in a general adult population from Temuco in southern Chile. The association of GERD with demographic variables was also examined. Methods A cross-sectional study among the general population of Temuco in southern Chile was conducted in 2017, using a validated and reliable questionnaire for detecting GERD. The urban area of Temuco, with a population of 245,317 inhabitants (2002 census), was divided into four zones, which were representative of the socioeconomic sectors of the city. The sample size was estimated assuming a prevalence of 52.8%, an accuracy of 3.0%, a confidence level of 95.0%, and a design effect of 1.15. Area sampling was used to build clusters. The prevalence of GERD was determined and associated factors were studied by means of bivariate and multivariate analyses. Results A total of 1,069 subjects (47.9% women, median age 40 years) from the selected subareas were interviewed. The prevalence of GERD was 44.8%. The most frequently reported symptom was regurgitation (54.8%). One-third of subjects took medication to control symptoms and was considered 'sick' by the instrument, although >68% of them had never sought medical consultation. There was a significant association between GERD and age (P < 0.001) and female gender (P = 0.001). Conclusions In this population-based study, the prevalence of GERD was high (44.8%). GERD was associated with age and female gender.
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García-Méndez N, Lagarda Cuevas J, Otzen T, Manterola C. Anesthesiologists and the High Risk of Exposure to COVID-19. Anesth Analg 2020; 131:e92-e93. [PMID: 32345858 PMCID: PMC7202112 DOI: 10.1213/ane.0000000000004919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Manterola C, Grande L, Riffo‐Campos ÁL, Salgado C, Otzen T. Clinical aspects of abdominal actinomycosis: a systematic review. ANZ J Surg 2020; 90:1465-1468. [DOI: 10.1111/ans.16141] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 11/29/2022]
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Otzen T, Manterola C, Mora M, Quiroz G, Salazar P, García N. Statements, Recommendations, Proposals, Guidelines, Checklists and Scales Available for Reporting Results in Biomedical Research and Quality of Conduct. A Systematic Review. INT J MORPHOL 2020. [DOI: 10.4067/s0717-95022020000300774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Figueroa-Saavedra C, Otzen T, Romero-Mejías F, Díaz-Franco MV. Morfología de los Potenciales Evocados Auditivos de Latencia Tardía P300 y su Rol en la Evaluación de la Conducta Suicida. INT J MORPHOL 2020. [DOI: 10.4067/s0717-95022020000200356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Manterola C, Duque G, Grande L, de Aretxabala X, Conejeros R, Otzen T, García N. A systematic review of the effectiveness of adjuvant therapy for patients with gallbladder cancer. HPB (Oxford) 2019; 21:1427-1435. [PMID: 30922845 DOI: 10.1016/j.hpb.2019.02.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/15/2019] [Accepted: 02/26/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Equipoise exists regarding the benefit of adjuvant therapy (AT) in patients with gallbladder cancer (GBC). The aim of this study was to critically review the available evidence for the effectiveness of AT in patients with GBC following surgery with curative intent. METHODS A systematic review was performed. Relevant studies were identified from Trip Database, BIREME-BVS, SciELO, Cochrane Central Register, WoS, MEDLINE, EMBASE and SCOPUS. Adjuvant therapies considered included chemotherapy, chemoradiotherapy, and radiotherapy. The primary outcome was overall survival (OS). Subgorup analysis of patients with positive lymph node disease (PLND), positive surgical margin (PSM), or advanced stage (AS) were performed. RESULTS 748 related articles were identified; 27 met the selection criteria (3 systematic reviews and 24 observational studies). Evidence provided was moderate, poor and very poor for chemotherapy, chemoradiotherapy, and radiotherapy. Existing evidence is not robust, but suggests certain benefits with AT in improving OS, especially in patients with PLND, PSM and AS. CONCLUSION Results do not provide strong evidence that AT is effective in patients who undergo resection for GBC. Subgroups of PLND and PSM may have a survival advantage. Future studies with appropriate internal validity and adequate number of patients are required to better answer this question.
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Manterola C, Grande L, Otzen T, Duque G. Surgical treatment results of hepatocellular carcinoma in non-cirrhotic liver in southern Chile: case series with follow-up. ANZ J Surg 2019; 90:92-96. [PMID: 31566295 DOI: 10.1111/ans.15455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Hepatocellular carcinoma is the most frequent primary tumour of the liver. Although often associated with chronic liver disease, it can also occur in non-cirrhotic livers. The aim of this study was to describe post-operative morbidity (POM), and survival of patients with hepatocellular carcinoma in non-cirrhotic liver treated surgically, and to identify variables associated with prognosis. METHODS Case series of patients who underwent surgery for hepatocellular carcinoma in non-cirrhotic liver at Clínica RedSalud Mayor de Temuco, Chile (2001-2017), were studied. The minimum follow-up time considered was 12 months. Principal outcomes were development of POM and survival. Other variables of interest were age, sex, tumour diameter, surgical time, hospital stay, follow-up time, need for surgical re-intervention, mortality, vascular and lymph node invasion and staging. Descriptive and analytic statistics were calculated. RESULTS A total of 32 patients were studied. They were characterized by a mean age of 67.3 ± 7.2 years, 62.5% of whom were men. Averages of tumour diameter, surgical time and hospitalization were 12.0 ± 2.6 cm, 114.4 ± 32.3 min and 7.2 ± 2.9 days, respectively. POM was 31.3%. There was no mortality and there were no re-interventions. The overall actuarial survival at 1, 2 and 3 years was 96.8%, 73.4% and 17.3%, respectively. Lower survival was verified in patients with vascular invasion, lymph node infiltration and stages III and IVa. CONCLUSION Despite the tumour diameter and extent of the resections, POM in patients with hepatocellular carcinoma in non-cirrhotic liver is moderate. However, its prognosis is poor. Vascular invasion, lymph node invasion and advances stages were associated with worse survival.
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Manterola C, Grande L, Otzen T. Actinomicosis de Pared Abdominal con Infiltración Hepática Simulando una Neoplasia Maligna. Reporte de un Caso. INT J MORPHOL 2019. [DOI: 10.4067/s0717-95022019000301033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Manterola C, Grande L, Otzen T, Conejeros R. Extension of surgical treatment and adjuvant chemotherapy in patients with incidental gallbladder cancer. CIR CIR 2019; 87:313-320. [PMID: 31135772 DOI: 10.24875/ciru.18000596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective To describe the results of the extension of surgical treatment and adjuvant chemotherapy (ACT) in incidental gallbladder cancer (CVB), in terms of postoperative morbidity (POM) and 5-year overall survival rate. Method Case series of patients operated on for incidental GBC in Clínica Mayor, Temuco, Chile (2001-2016). All cases were treated by partial hepatectomy (segments IVb and V), and regional lymphadenectomy. The minimum follow-up time was 12 months. Outcome variables were MPO and 5-year overall survival rate. Other variables of interest were: infiltration depth in vesicular wall, lymph nodes and resected liver; surgical time, need for reoperation, hospital stay, follow-up and mortality. Descriptive statistics were applied as well as bivariate analysis applying Fisher's exact and t-test and non-parametrical tests for continuous variables and Kaplan Meier curves. Results The series was composed of 50 patients, whose average age was 58.6 ± 9.6 years; 68.0% of which were women. The mean surgical time and hospital stay were 224 ± 93 min (90 to 480) and 6.9 ± 2.9 days (4 to 20), respectively. POM was 28.0%. 5-year overall survival rate was 47%. There were no reoperations or mortality. Conclusions The results verified in terms of POM and 5-year overall survival rate are similar to previously reported series.
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Manterola C, Ayala C, Grande L, Otzen T. Lipoma Gástrico. Lesión Submucosa Infrecuente. Reporte de Dos Casos Tratados. INT J MORPHOL 2018. [DOI: 10.4067/s0717-95022018000401222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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