Publications by authors named "Manuel Parra"

This video-article describes a laparoscopic cervico-isthmic cerclage technique for managing cervical insufficiency in both pregnant and non-pregnant patients, utilizing a port-site closure device for precise suture placement. Two cases-one non-pregnant and one at 12 weeks gestation-underwent the procedure, with details on trocar placement, dissection, and suture passage documented. Both surgeries were completed successfully, with minimal blood loss and no complications.

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The prevalence of SARS-CoV-2 exposure in children during the global COVID-19 pandemic has been underestimated due to lack of testing and the relatively mild symptoms in adolescents. Understanding the exposure rates in the pediatric population is essential as children are the last to receive vaccines and can act as a source for SARS-CoV-2 mutants that may threaten vaccine escape. This cross-sectional study aims to quantify the prevalence of anti-SARS-CoV-2 serum antibodies in children in a major city in México in the Spring of 2021 and determine if there are any demographic or socioeconomic correlating factors.

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Knowledge about professional diving-related risk factors for reduced executive function is limited. We therefore evaluated the association between decompression illness and executive functioning among artisanal divers in southern Chile. The cross-sectional study included 104 male divers and 58 male non-diving fishermen from two fishing communities.

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Integrating basic occupational health services into primary care is encouraged by the Pan American Health Organization. However, concrete initiatives are still scarce. We aimed to develop a training program focusing on prevention of occupational risks for primary healthcare professionals.

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In artisanal fishing communities in Chile, the access to occupational safety and health (OSH) is limited by factors such as the informality of employment. Our objective was to analyze the working and health conditions of workers in a coastal town in Southern Chile, under a community-based participatory approach. We carried out two independent social dialogue workshops within the community.

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Objective: To assess the association between effort-reward imbalance (ERI) and health indicators among Bolivian school teachers.

Design: School-based cross-sectional study.

Setting: Sixty randomly selected schools from rural (33) and urban (27) schools in Chuquisaca, Bolivia.

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Background: There is a misconception that the main cause of death among women is breast cancer, even among physicians, who may neglect cardiovascular preventive measures in this gender Aim: To assess the knowledge among physicians about the main cause of death among women.

Material And Methods: A survey was answered by 231 physicians attending a Cardiology and a Gynecology Meeting.

Results: Sixty eight percent of respondents indicated that cardiovascular diseases are the main cause of death among women.

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Background: Musculoskeletal disorders (MSD) are important health problems in working populations. The study aimed to determine the prevalence of MSD among school teachers from urban and rural areas in Chuquisaca, Bolivia.

Methods: A cross-sectional study was conducted in 60 randomly selected schools.

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Objectives: An increased asthma prevalence was found in cleaners. Many of them work in precarious employment conditions, potentially leading to stress, a known risk factor for asthma. We aimed to analyze whether asthma in cleaners might partly be explained by psychosocial working conditions.

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Background: To assess the performance of Candida albicans germ tube antibody (CAGTA), (1 → 3)-ß-D-glucan (BDG), mannan antigen (mannan-Ag), anti-mannan antibodies (mannan-Ab), and Candida DNA for diagnosing invasive candidiasis (IC) in ICU patients with severe abdominal conditions (SAC).

Methods: A prospective study of 233 non-neutropenic patients with SAC on ICU admission and expected stay ≥ 7 days. CAGTA (cutoff positivity ≥ 1/160), BDG (≥80, 100 and 200 pg/mL), mannan-Ag (≥60 pg/mL), mannan-Ab (≥10 UA/mL) were measured twice a week, and Candida DNA only in patients treated with systemic antifungals.

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Background: Psychosocial working conditions are well-known determinants of poor mental health. However, studies in mining populations where employment and working conditions are frequently precarious have, to our knowledge, only focused on occupational accidents and diseases.

Objectives: The aim of this study was to assess psychosocial working conditions and psychological distress in Andean underground miners.

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Background: Human papillomavirus (HPV) is the main cause of cervical cancer. The development of non-invasive self-sample collection methods would have the potential advantage of increasing the acceptance of the screening procedures.

Objectives: To compare human papillomavirus (HPV) DNA detection and genotyping with the Cobas 4800 HPV test (Roche Diagnostic, Spain) on paired cervical and first voided urine.

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Objectives: To know the prevalence, incidence and factors associated with hepatitis E virus (HEV) infection in HIV-infected individuals in Spain, as well as to provide information on the natural history of HIV/HEV coinfection.

Design: Prospective cohort study.

Methods: Serum HEV IgG antibodies were tested in 613 HIV-infected patients at baseline and 2 years thereafter.

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Background: HPV testing in cervical cancer screening has been proposed as an alternative or complementary to cytology in women older than 30 years. However, adequate clinical sensitivity and specificity are crucial for a new test to be implemented. Hybrid Capture 2 (HC2) has proved good clinical performance in selecting women at risk for high-grade intraepithelial lesions with a high sensitivity and specificity.

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The greater prevalence of human papillomavirus (HPV) types 16 and 18 compared to the other high-risk HPV types of cervical cancer led to the development of clinical tests that detect both types separately from other genotypes. One method is the Roche Cobas 4800 HPV test, which is based on a real-time PCR. The aim of this study was to evaluate the performance of the Cobas 4800 HPV test for detecting genotypes 16 and 18 by comparing the results with those obtained in a combination of the Roche Amplicor HPV assay and the Roche Linear Array (LA) HPV genotyping assay.

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Introduction: To evaluate the new automated system cobas 4800 CT/NG test for detection of Chlamydia trachomatis in urogenital specimens.

Material And Methods: We analyzed 696 specimens (488 swabs from urethral or cervical specimens, and 208 urines) to detect C. trachomatis.

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