RESUMO

Toxoplasmosis is the most prevalent parasitic zoonosis worldwide, causing ocular and neurological diseases. No vaccine has been approved for human use. We evaluated the response of peripheral blood mononuclear cells (PBMCs) to a novel construct of Toxoplasma gondii total antigen in maltodextrin nanoparticles (NP/TE) in individuals with varying infectious statuses (uninfected, chronic asymptomatic, or ocular toxoplasmosis). We analyzed the concentration of IFN-γ after NP/TE ex vivo stimulation using ELISA and the immunophenotypes of CD4+ and CD8+ cell populations using flow cytometry. In addition, serotyping of individuals with toxoplasmosis was performed by ELISA using GRA6-derived polypeptides. Low doses of NP/TE stimulation (0.9 µg NP/0.3 µg TE) achieved IFN-γ-specific production in previously exposed human PBMCs without significant differences in the infecting serotype. Increased IFN-γ expression in CD4+ effector memory cell subsets was found in patients with ocular toxoplasmosis with NP/TE but not with TE alone. This is the first study to show how T-cell subsets respond to ex vivo stimulation with a vaccine candidate for human toxoplasmosis, providing crucial insights for future clinical trials.

Assuntos

Antígenos de Protozoários , Interferon gama , Ativação Linfocitária , Nanopartículas , Polissacarídeos , Toxoplasma , Toxoplasmose , Humanos , Nanopartículas/química , Polissacarídeos/imunologia , Toxoplasma/imunologia , Antígenos de Protozoários/imunologia , Toxoplasmose/imunologia , Interferon gama/metabolismo , Interferon gama/imunologia , Ativação Linfocitária/imunologia , Feminino , Adulto , Leucócitos Mononucleares/imunologia , Leucócitos Mononucleares/metabolismo , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD4-Positivos/metabolismo , Masculino , Linfócitos T CD8-Positivos/imunologia , Linfócitos T CD8-Positivos/metabolismo , Linfócitos T/imunologia , Linfócitos T/metabolismo , Pessoa de Meia-Idade

RESUMO

BACKGROUND: Left bundle branch area pacing (LBBAP) has emerged as a physiological alternative pacing strategy to biventricular pacing (BIVP) in cardiac resynchronization therapy (CRT). We aimed to assess the impact of LBBAP vs. BIVP on all-cause mortality and heart failure (HF)-related hospitalization in patients undergoing CRT. METHODS: Studies comparing LBBAP and BIVP for CRT in patients with HF with reduced left ventricular ejection fraction (LVEF) were included. The coprimary outcomes were all-cause mortality and HF-related hospitalization. Secondary outcomes included procedural and fluoroscopy time, change in QRS duration, and change in LVEF. RESULTS: Thirteen studies (12 observational and 1 RCT, n = 3239; LBBAP = 1338 and BIVP = 1901) with a mean follow-up duration of 25.8 months were included. Compared to BIVP, LBBAP was associated with a significant absolute risk reduction of 3.2% in all-cause mortality (9.3% vs 12.5%, RR 0.7, 95% CI 0.57-0.86, p < 0.001) and an 8.2% reduction in HF-related hospitalization (11.3% vs 19.5%, RR 0.6, 95% CI 0.5-0.71, p < 0.00001). LBBAP also resulted in reductions in procedural time (mean weighted difference- 23.2 min, 95% CI - 42.9 to - 3.6, p = 0.02) and fluoroscopy time (- 8.6 min, 95% CI - 12.5 to - 4.7, p < 0.001) as well as a significant reduction in QRS duration (mean weighted difference:- 25.3 ms, 95% CI - 30.9 to - 19.8, p < 0.00001) and a greater improvement in LVEF of 5.1% (95% CI 4.4-5.8, p < 0.001) compared to BIVP in the studies that reported these outcomes. CONCLUSION: In this meta-analysis, LBBAP was associated with a significant reduction in all-cause mortality as well as HF-related hospitalization when compared to BIVP. Additional data from large RCTs is warranted to corroborate these promising findings.

Assuntos

Terapia de Ressincronização Cardíaca , Causas de Morte , Insuficiência Cardíaca , Humanos , Bloqueio de Ramo/terapia , Bloqueio de Ramo/mortalidade , Terapia de Ressincronização Cardíaca/métodos , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/terapia , Hospitalização/estatística & dados numéricos , Medição de Risco , Volume Sistólico/fisiologia , Taxa de Sobrevida , Resultado do Tratamento

RESUMO

Left atrial appendage occlusion (LAAO) is a suitable alternative to oral anticoagulant therapy to prevent stroke in patients with AF. Most procedures are performed under transoesophageal echocardiography (TOE) guidance, which facilitates transseptal puncture, reduces the risk of procedurerelated complications and provides an additional method for device selection and real-time monitoring during device deployment. However, TOE has significant shortcomings, including the need for general anaesthesia/deep sedation as well as a significant risk of procedure-related adverse events. More recently, intracardiac echocardiography has been proposed as an alternative to TOE guidance during LAAO procedures. In this review, we summarise the available evidence as well as providing a step-by-step approach for intracardiac echocardiography-guided LAAO.

RESUMO

Las infecciones perinatales son una causa de morbilidad, tanto fetal como neonatal, y que compromete la salud de la mujer embarazada, por lo que su diagnóstico, tratamiento, e intento de eliminación son una prioridad en América Latina y el Caribe. Este documento representa la segunda entrega realizada por expertos en la región dentro de la Sociedad Latinoamericana de Infectología Pediátrica (SLIPE), brindando una mirada actualizada en el manejo de las infecciones congénitas y entrega herramientas para detectar posibles momentos estratégicos de intervención y cambio en el manejo de las infecciones congénitas.

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Perinatal infections are a major cause of morbidity and mortality in the fetus, neonate, and the health of the pregnant woman. Diagnosis, treatment, and the search for elimination of these diseases are a priority in Latin America and the Caribbean. This document represents the second delivery by a group of experts in the region inside the Latin-American Society of Pediatric Infectious Diseases (SLIPE), presenting a up-to-date look into the management of congenital infectious diseases and give a tool to detect possible strategic sceneries and a change in the management of congenital infections in our region.

Assuntos

Humanos , Feminino , Gravidez , Recém-Nascido , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/terapia , Infecções por Arbovirus/congênito , Infecções por Arbovirus/diagnóstico , Infecções por Arbovirus/terapia , Toxoplasmose/diagnóstico , Toxoplasmose/terapia , Toxoplasmose Congênita , Doenças Transmissíveis , Infecções por Citomegalovirus , Infecções por Citomegalovirus/diagnóstico , Infecções por Citomegalovirus/terapia , Dengue , Infecção por Zika virus , COVID-19 , Herpes Simples/congênito , Herpes Simples/diagnóstico , Herpes Simples/terapia

RESUMO

BACKGROUND: Intracardiac echocardiography (ICE) is increasingly used during left atrial appendage occlusion (LAAO) as an alternative to transesophageal echocardiography (TEE). The objective of this study is to evaluate the impact of ICE versus TEE guidance during LAAO on procedural characteristics and acute outcomes, as well the presence of peri-device leaks and residual septal defects during follow-up. METHODS: All studies comparing ICE-guided versus TEE-guided LAAO were identified. The primary outcomes were procedural efficacy and occurrence of procedure-related complications. Secondary outcomes included lab efficiency (defined as a reduction in in-room time), procedural time, fluoroscopy time, and presence of peri-device leaks and residual interatrial septal defects (IASD) during follow-up. RESULTS: Twelve studies (n = 5637) were included. There were no differences in procedural success (98.3% vs. 97.8%; OR 0.73, 95% CI 0.42-1.27, p = .27; I2 = 0%) or adverse events (4.5% vs. 4.4%; OR 0.81 95% CI 0.56-1.16, p = .25; I2 = 0%) between the ICE-guided and TEE-guided groups. ICE guidance reduced in in-room time (mean-weighted 28.6-min reduction in in-room time) without differences in procedural time or fluoroscopy time. There were no differences in peri-device leak (OR 0.93, 95% CI 0.68-1.27, p = 0.64); however, an increased prevalence of residual IASD was observed with ICE-guided versus TEE-guided LAAO (46.3% vs. 34.2%; OR 2.23, 95% CI 1.05-4.75, p = 0.04). CONCLUSION: ICE guidance is associated with similar procedural efficacy and safety, but could result in improved lab efficiency (as established by a significant reduction in in-room time). No differences in the rate of periprocedural leaks were found. A higher prevalence of residual interatrial septal defects was observed with ICE guidance.

Assuntos

Apêndice Atrial , Fibrilação Atrial , Humanos , Apêndice Atrial/diagnóstico por imagem , Apêndice Atrial/cirurgia , Fibrilação Atrial/diagnóstico por imagem , Fibrilação Atrial/cirurgia , Fibrilação Atrial/complicações , Ecocardiografia Transesofagiana , Resultado do Tratamento

RESUMO

BACKGROUND: Left bundle branch pacing (LBBP) and left ventricular septal pacing (LVSP) are considered to be acceptable as LBBAP strategies. Differences in clinical outcomes between LBBP and LVSP are yet to be determined. OBJECTIVES: The purpose of this study was to compare the outcomes of LBBP vs LVSP vs BIVP for CRT. METHODS: In this prospective multicenter observational study, LBBP was compared with LVSP and BIVP in patients undergoing CRT. The primary composite outcome was freedom from heart failure (HF)-related hospitalization and all-cause mortality. Secondary outcomes included individual components of the primary outcome, postprocedural NYHA functional class, and electrocardiographic and echocardiographic parameters. RESULTS: A total of 415 patients were included (LBBP: n = 141; LVSP: n = 31; BIVP: n = 243), with a median follow-up of 399 days (Q1-Q3: 249.5-554.8 days). Freedom from the primary composite outcomes was 76.6% in the LBBP group and 48.4% in the LVSP group (HR: 1.37; 95% CI: 1.143-1.649; P = 0.001), driven by a 31.4% absolute increase in freedom from HF-related hospitalizations (83% vs 51.6%; HR: 3.55; 95% CI: 1.856-6.791; P < 0.001) without differences in all-cause mortality. LBBP was also associated with a higher freedom from the primary composite outcome compared with BIVP (HR: 1.43; 95% CI: 1.175-1.730; P < 0.001), with no difference between LVSP and BIVP. CONCLUSIONS: In patients undergoing CRT, LBBP was associated with improved outcomes compared with LVSP and BIVP, while outcomes between BIVP and LVSP are similar.

Assuntos

Terapia de Ressincronização Cardíaca , Insuficiência Cardíaca , Humanos , Terapia de Ressincronização Cardíaca/efeitos adversos , Estudos Prospectivos , Sistema de Condução Cardíaco , Ventrículos do Coração , Eletrocardiografia

RESUMO

Ocular toxoplasmosis (OT) is characterized by inflammation within the eye and is the most recognized clinical manifestation of toxoplasmosis. The objective of this study was to identify new single-nucleotide polymorphisms (SNPs) in the P2RX7 gene that may have significance in the immune response to OT in Colombian patients. A case-control study was conducted to investigate the associations between SNPs (rs1718119 and rs2230912) in the P2RX7 gene and OT in 64 Colombian patients with OT and 64 controls. Capillary electrophoresis was used to analyze the amplification products, and in silico algorithms were employed to predict deleterious SNPs. Stability analysis of amino acid changes indicated that both mutations could lead to decreased protein structure stability. A nonsynonymous SNP, Gln460Arg, located in the long cytoplasmic tail of the receptor, showed a significant association with OT (Bonferroni correction (BONF) = 0.029; odds ratio OR = 3.46; confidence interval CI: 1.05 to 11.39), while no significant association between rs1718119 and OT risk was observed. Based on the 3D structure analysis of the P2RX7 protein trimer, it is hypothesized that an increase in the flexibility of the cytoplasmic domain of this receptor could alter its function. This SNP could potentially serve as a biomarker for identifying Colombian patients at risk of OT.

RESUMO

Purpose: The purpose of this study is to perform a systematic review of the scientific literature to compare single and double row techniques for rotator cuff tears in terms of functional, pain improvement and structural healing of the tendon. Methods: In order to carry out the research, a systematic selection of scientific articles has been made by consulting PubMed and The Cochrane Library databases. The articles included in the present study compare the single-row and double-row techniques, with publication date between 2016 and 2021. Results: Diverse results are observed in the UCLA, SST, Constant and ASES assessment scales and in the range of mobility, therefore, the superiority of one technique in terms of functional results is not established. The double row technique may show superiority in the strength variable, although there is a methodological variability in its measurement. The double-row technique may be related to more intense postoperative pain, while the single-row technique to residual shoulder pain. However, the variables strength and pain show non-homogeneous or coincident data. The superiority of the double row repair in the structural healing of the tendon and a lower re-tear rate than the single row technique is established with statistically significant results, being the most homogeneous and coincident studies.

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Objetivos: El propósito de este estudio es realizar una revisión sistemática de la literatura científica para comparar las técnicas de hilera simple y doble para los desgarros del manguito de los rotadores en términos de curación funcional, del dolor y estructural del tendón. Métodos: Para llevar a cabo la investigación se ha realizado una selección sistemática de artículos científicos consultando las bases de datos PubMed y The Cochrane Library. Los artículos incluidos en el presente estudio comparan las técnicas de una y dos hileras, con fecha de publicación entre 2016 y 2021. Resultados: Se observan diversos resultados en las escalas de valoración UCLA, SST, Constant y ASES y en el rango de movilidad, por lo que no se establece la superioridad de una técnica en cuanto a resultados funcionales. La técnica de doble hilera puede mostrar superioridad en la variable fuerza, aunque existe una variabilidad metodológica en su medición. La técnica de doble hilera puede estar relacionada con un dolor postoperatorio más intenso, mientras que la técnica de hilera simple con dolor residual en el hombro. Sin embargo, las variables fuerza y ​​dolor muestran datos no homogéneos o coincidentes. Se establece con resultados estadísticamente significativos, siendo los estudios más homogéneos y coincidentes, la superioridad de la reparación en doble hilera en la cicatrización estructural del tendón y una menor tasa de re-desgarro que la técnica de hilera simple.

Assuntos

Lesões do Manguito Rotador , Ombro , Humanos , Estudos Retrospectivos

RESUMO

This work analyzed exhaustion markers in CD8+ T-cell subpopulations in 21 samples of peripheral blood mononuclear cells (PBMCs) from individuals with ocular toxoplasmosis (n = 9), chronic asymptomatic toxoplasmosis (n = 7), and non-infected people (n = 5) by using RT-qPCR and flow cytometry techniques. The study found that gene expression of PD-1 and CD244, but not LAG-3, was higher in individuals with ocular toxoplasmosis versus individuals with asymptomatic infection or uninfected. Expression of PD1 in CD8+ central memory (CM) cells was higher in nine individuals with toxoplasmosis versus five uninfected individuals (p = .003). After ex vivo stimulation, an inverse correlation was found between the exhaustion markers and quantitative clinical characteristics (lesion size, recurrence index, and number of lesions). A total exhaustion phenotype was found in 55.5% (5/9) of individuals with ocular toxoplasmosis. Our results suggest that the CD8+ exhaustion phenotype is involved in the pathogenesis of ocular toxoplasmosis.

RESUMO

BACKGROUND: Left bundle branch area pacing (LBBAP) for cardiac resynchronization therapy (CRT) is an alternative to biventricular pacing (BiVp). OBJECTIVES: The purpose of this study was to compare the outcomes between LBBAP and BiVp as an initial implant strategy for CRT. METHODS: In this prospective multicenter, observational, nonrandomized study, first-time CRT implant recipients with LBBAP or BiVp were included. The primary efficacy outcome was a composite of heart failure (HF)-related hospitalization and all-cause mortality. The primary safety outcomes were acute and long-term complications. Secondary outcomes included postprocedural New York Heart Association functional class and electrocardiographic and echocardiographic parameters. RESULTS: A total of 371 patients (median follow-up of 340 days [IQR: 206-477 days]) were included. The primary efficacy outcome occurred in 24.2% in the LBBAP vs 42.4% in the BiVp (HR: 0.621 [95% CI: 0.415-0.93]; P = 0.021) group, driven by a reduction in HF-related hospitalizations (22.6% vs 39.5%; HR: 0.607 [95% CI: 0.397-0.927]; P = 0.021) without significant difference in all-cause mortality (5.5% vs 11.9%; P = 0.19) or differences in long-term complications (LBBAP: 9.4% vs BiVp: 15.2%; P = 0.146). LBBAP resulted in shorter procedural (95 minutes [IQR: 65-120 minutes] vs 129 minutes [IQR: 103-162 minutes]; P < 0.001) and fluoroscopy times (12 minutes [IQR: 7.4-21.1 minutes] vs 21.7 minutes [IQR: 14.3-30 minutes]; P < 0.001), shorter QRS duration (123.7 ± 18 milliseconds vs 149.3 ± 29.1 milliseconds; P < 0.001), and higher postprocedural left ventricular ejection fraction (34.1% ± 12.5% vs 31.4% ± 10.8%; P = 0.041). CONCLUSIONS: LBBAP as an initial CRT strategy resulted in a lower risk of HF-related hospitalizations compared to BiVp. A reduction in procedural and fluoroscopy times, shorter paced QRS duration, and improvements in left ventricular ejection fraction compared with BiVp were observed.

Assuntos

Terapia de Ressincronização Cardíaca , Insuficiência Cardíaca , Humanos , Terapia de Ressincronização Cardíaca/efeitos adversos , Terapia de Ressincronização Cardíaca/métodos , Volume Sistólico , Estudos Prospectivos , Função Ventricular Esquerda , Resultado do Tratamento , Insuficiência Cardíaca/terapia

RESUMO

Strong evidence exists based on metanalysis of the relationship between toxoplasmosis and many psychiatric diseases: schizophrenia, bipolar disorder, and suicidal behavior. Herein, we estimate the number of cases based on the attributable fraction due to toxoplasmosis on these diseases. The population attributable fraction of mental disease associated with toxoplasmosis was 20,4% for schizophrenia; 27,3% for bipolar disorder; and 0,29% for suicidal behavior (self-harm). The lower and upper estimated number of people with mental disease associated with toxoplasmosis was 4'816.491 and 5'564.407 for schizophrenia; 6'348.946 and 7'510.118,82 for bipolar disorder; and 24.310 and 28.151 for self-harm; for a global total lower estimated number of 11'189.748 and global total upper estimated number of 13'102.678 people with mental disease associated with toxoplasmosis for the year 2019. According to the prediction through the Bayesian model of risk factors for toxoplasmosis associated with mental disease, these varied in importance geographically; thus, in Africa, the most important risk factor was water contamination and in the European region, the cooking conditions of meats. Toxoplasmosis and mental health should be a research priority given the enormous potential impact of reducing this parasite in the general population.

Assuntos

Transtornos Mentais , Toxoplasma , Toxoplasmose , Humanos , Teorema de Bayes , Transtornos Mentais/epidemiologia , Transtornos Mentais/complicações , Toxoplasmose/complicações , Toxoplasmose/epidemiologia , Toxoplasmose/parasitologia , Fatores de Risco

RESUMO

INTRODUCTION: Capsulectomy is recommended in patients with cardiac implantable electronic device (CIED) infection after transvenous lead extraction (TLE) but is time-consuming and requires extensive tissue debridement. In this study, we describe the outcomes of chlorhexidine gluconate (CHG) lavage in lieu of capsulectomy for the treatment of CIED infections. METHODS: This retrospective study included patients who underwent TLE for CIED-related infections in two institutions in Colombia. In the capsulectomy group, complete capsulectomy was performed after hardware removal. In the CHG group, exhaustive lavage of the generator pocket with 20 cc of CHG at 2% followed by irrigation with approximately 500 cc of normal saline (0.9% sodium chloride) was performed. The primary outcomes included reinfection and hematoma formation in the generator pocket. Secondary outcomes included the occurrence of any adverse reaction to chlorhexidine, the need for reintervention, infection-related mortality, and total procedural time. RESULTS: A total of 102 patients (mean age 67.2 ± 13 years, 32.4% female) underwent CIED extraction with either total capsulectomy (n = 54) or CHG (n = 48) lavage. Hematoma formation was significantly higher in the capsulectomy group versus the CHG group (13% vs. 0%, p = .014), with no significant differences in the reinfection rate. Capsulectomy was associated with longer procedural time (133.7 ± 78.5 vs. 89.9 ± 51.8 min, p = .002). No adverse reactions to CHG were found. Four patients (4.3%) died from worsening sepsis: three in the capsulectomy group and one in the CHG group (p = .346). CONCLUSIONS: In patients with CIED infections, the use of CHG without capsulectomy resulted in a lower risk of hematoma formation and shorter procedural times without an increased risk of reinfection or adverse events associated with CHG use.

Assuntos

Cardiopatias , Marca-Passo Artificial , Humanos , Feminino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Masculino , Clorexidina , Marca-Passo Artificial/efeitos adversos , Estudos Retrospectivos , Irrigação Terapêutica , Reinfecção/etiologia , Cardiopatias/etiologia

RESUMO

BACKGROUND: Patients with cardiac implantable electronic devices (CIEDs) living in rural areas have difficulty obtaining follow-up visits for device interrogation and programming in specialized healthcare facilities. OBJECTIVE: To describe the use of an assisted reality device designed to provide front-line workers with real-time online support from a remotely located specialist (Realwear HTM-1; Realwear) during CIED assistance in distant rural areas. METHODS: This is a prospective study of patients requiring CIED interrogation using the Realwear HMT-1 in a remote rural population in Colombia between April 2021 and June 2022. CIED interrogation and device programming were performed by a general practitioner and guided by a cardiac electrophysiologist. Non-CIED-related medical interventions were allowed and analyzed. The primary objective was to determine the incidence of clinically significant CIED alerts. Secondary objectives were the changes medical interventions used to treat the events found in the device interrogations regarding non-CIED related conditions. RESULTS: A total of 205 CIED interrogations were performed on 139 patients (age 69 ± 14 years; 54% female). Clinically significant CIED alerts were reported in 42% of CIED interrogations, consisting of the detection of significant arrhythmias (35%), lead malfunction (3%), and device in elective replacement interval (3.9%). Oral anticoagulation was initiated in 8% of patients and general medical/cardiac interventions unrelated to the CIED were performed in 52% of CIED encounters. CONCLUSION: Remote assistance using a commercially available assisted reality device has the potential to provide specialized healthcare to patients in difficult-to-reach areas, overcoming current difficulties associated with RM, including the inability to change device programming. Additionally, these interactions provided care beyond CIED-related interventions, thus delivering significant social and clinical impact to remote rural populations.

Assuntos

Desfibriladores Implantáveis , Marca-Passo Artificial , Humanos , Feminino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Masculino , Estudos Prospectivos , Arritmias Cardíacas/terapia

RESUMO

BACKGROUND: A new point of care test (POC) was developed that is promising as a tool to enhance impact of prenatal care programs for toxoplasmosis, however, no reports exist about its use or acceptability for healthcare personnel and mothers in Colombia. METHODS: This was a translational research - phase III study of the acceptability of a new POC test (Toxoplasma ICT IgG-IgM, LDBio) for qualitative diagnosis of toxoplasmosis in 783 pregnant women and 30 health personnel in primary health care sites in the city of Armenia, Quindío (Colombia). Along with collection of the results of diagnostic POC and confirmatory test and demographic information, we evaluated acceptability through measure of the willingness, credibility, and satisfaction by using questionnaires with a Likert scale during routine prenatal care visits. RESULTS: POC positivity was 46.5% among pregnant participants and was significantly related to socioeconomic factors, including education level (p = 0.00000000) and insurance status (p = 0.00000015). A total of 93-97% of healthcare personnel indicated agreement to positive statements regarding total satisfaction and total credibility of the LDBio test, but qualitative questions identified "Difficulty in the test procedure" as the most common response about barriers to apply the test. Greater than 90% of pregnant participants agree that POC test should be routine for all pregnant woman and permanently implemented. CONCLUSIONS: The test had near complete acceptability. In future studies it is necessary to examine the effect of non-differentiation between IgG and IgM isotypes.

Assuntos

Toxoplasma , Toxoplasmose Congênita , Toxoplasmose , Feminino , Humanos , Gravidez , Anticorpos Antiprotozoários , Imunoglobulina G , Imunoglobulina M , Testes Imediatos , Toxoplasmose/diagnóstico , Pesquisa Translacional Biomédica

RESUMO

Cardiac resynchronisation therapy (CRT) reduces the risk of heart failure-related hospitalisations and all-cause mortality, as well as improving quality of life and functional status in patients with persistent heart failure symptoms despite optimal medical treatment and left bundle branch block. CRT has traditionally been delivered by implanting a lead through the coronary sinus to capture the left ventricular epicardium; however, this approach is associated with significant drawbacks, including a high rate of procedural failure, phrenic nerve stimulation, high pacing thresholds and lead dislodgement. Moreover, a significant proportion of patients fail to derive any significant benefit. Left bundle branch area pacing (LBBAP) has recently emerged as a suitable alternative to traditional CRT. By stimulating the cardiac conduction system physiologically, LBBAP can result in a more homogeneous left ventricular contraction and relaxation, thus having the potential to improve outcomes compared with conventional CRT strategies. In this article, the evidence supporting the use of LBBAP in patients with heart failure is reviewed.

RESUMO

Objetivo: Describir los resultados maternos y perinatales de pacientes con diagnóstico prenatal de gastrosquisis atendidos en un centro de referencia obstétrica de Medellín. Método: Estudio observacional, descriptivo y retrospectivo, llevado a cabo en la Clínica Universitaria Bolivariana en fetos con diagnóstico prenatal de gastrosquisis desde el 1 de enero de 2010 hasta el 31 de julio de 2021. Resultados: Se identificaron 54 gestantes con diagnóstico prenatal de gastrosquisis. En el 63% era su primer embarazo y el 27,8% eran adolescentes. La duración promedio de la gestación fue de 35 semanas y 6 días. La cesárea fue la vía más común (98,1%) y la indicación más frecuente fue sufrimiento de asa 66,7%. El 55,6% de los neonatos requirieron más de una intervención quirúrgica para el cierre de la pared abdominal. Las complicaciones más frecuentes fueron anemia (66,7%) e íleo posoperatorio (72,2%). La mortalidad fue del 13%. Conclusiones: Se evidencian algunas características similares a las reportadas en otras series. La mayor presentación fue en primer embarazo, la causa de finalización de la gestación fue sufrimiento de asas (demostrando la importancia del seguimiento ecográfico), y las complicaciones más frecuentes fueron anemia e íleo posoperatorio presentados por la prematuridad. La mortalidad comparada con la de otras instituciones locales fue menor.

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Objective: To describe the outcomes of maternal and perinatal in patients diagnosed with prenatal gastroschisis that received medical care at an obstetric reference center in Medellin. Method: Observational, descriptive and retrospective study in fetuses with a prenatal diagnosis of gastroschisis performed in the Clínica Universitaria Bolivariana between January 1st 2010 and July 31st 2021. Results: Were included 54 pregnant women with prenatal diagnosis of gastroschisis. The 63% were their first pregnancy and 27,8% were adolescents. The average duration of gestation was 35 weeks and 6 days. Cesarean section was the most common way of delivery (98,1%) and the most frequent indication was suffering from loop (66,7%). The 55,6% of neonates required more than one surgical intervention for closure of the abdominal wall. The most frequent complications were anemia (66,7%) and postoperative ileus (72,2%). A mortality of 13% was presented. Conclusions: Some characteristics like reported in other series are evident. The greatest presentation was in the first pregnancy, the cause of termination of pregnancy was suffering from loops (demonstrating the importance of ultrasound monitoring) and the most frequent complications were anemia and postoperative ileus presented by prematurity. Mortality, compared to other local institutions, was lower.

Assuntos

Humanos , Feminino , Gravidez , Recém-Nascido , Adolescente , Adulto Jovem , Diagnóstico Pré-Natal , Gastrosquise/cirurgia , Gastrosquise/diagnóstico , Resultado da Gravidez , Cesárea , Estudos Retrospectivos , Ultrassonografia/métodos , Assistência Perinatal , Gastrosquise/complicações , Gastrosquise/diagnóstico por imagem

RESUMO

Resumen Introducción: la preeclampsia severa antes de 34 semanas de gestación tiene alto riesgo de complicaciones maternas y fetales. El manejo expectante, pudiera reducir el riesgo de complicaciones de un parto prematuro. Objetivo: evaluar la efectividad comparativa del manejo expectante en la prevención de desenlaces adversos maternos y perinatales de las pacientes con preeclampsia severa remota del término. Metodología: estudio de cohorte retrospectivo en gestantes con preeclampsia severa entre la 24 a 33,6 semanas, admitidas en un centro de alta complejidad colombiano entre 2011 y 2019. Se compararon medidas descriptivas según el manejo expectante o intervencionistas como grupo de referencia y, de asociación con los desenlaces compuestos maternos y neonatales, además se ajustó por edad gestacional menor a 28 semanas al parto. Resultados: se analizaron 134 pacientes, 110 con manejo expectante y 24 con intervencionista. El manejo expectante tuvo menor probabilidad de cesárea (RR 0,79 IC95% 0,69-0,91) y de resultado compuesto materno (RR 0,67 IC95% 0,57-0,79), que no persistió luego del ajuste. El manejo expectante presentó menor probabilidad de APGAR <7 al minuto (21,6% vs. 40%, RR 0,53 IC95% 0,29-0,97) y de resultado neonatal compuesto (60% vs. 83,3%, RR 0,72 IC95% 0.57-0.90). Al realizar ajuste con edad menor a 28 semanas al parto, el manejo expectante mostró menor probabilidad de APGAR menor a 7 al minuto (RR 0,43 IC95% 0,24-0,75), resultado perinatal adverso compuesto (RR 0,62 IC95% 0,48-0,81), muerte neonatal (RR 0,26 IC95% 0,29-0,71), síndrome de dificultad respiratoria (RR 0,65 IC95% 0,48-0,88), hemorragia intraventricular (RR 0,31 IC95% 0,11-0,89) e ingreso a unidad de cuidados intensivos neonatales (RR 0,80 IC95% 0,70-0,92). Conclusión: la preeclampsia severa remota del término es una patología grave y compleja que enfrenta los intereses maternos y los fetales. Debido al controversial enfoque, su manejo debe realizarse en centros de alta complejidad, con participación interdisciplinaria y anteponiendo la individualidad de cada binomio; nuestros hallazgos sugieren que el manejo expectante es razonable cuando las condiciones maternas y fetales lo permiten, especialmente para gestaciones menores a 28 semanas en favor de mejorar los desenlaces fetales sin detrimento de los desenlaces maternos.

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Abstract Introduction: severe preeclampsia before 34 weeks of gestational age has a high risk of maternal and fetal complications. Expectant management could decrease the risk of complications associated with premature birth. Objective: to evaluate the efficacy of expectant management in the prevention of maternal and perinatal adverse events of patients with severe preeclampsia remote from term. Methodology: a retrospective cohort study in pregnant women diagnosed with severe preeclampsia between 24 and 33.6 weeks of gestational age who were admitted in a Colombian high complexity medical center between 2011 and 2019 was carried out. Descriptive measurements of the expectant management and the interventionist management were compared and the association with maternal and neonatal composite outcomes. Results were adjusted by gestational age under 28 weeks of delivery. Results: 134 patients were analyzed; 110 patients with expectant management and 24 interventionist management. Expectant management had a lower probability of cesarean section (RR 0.79 CI95% 0.69-0.91) and maternal composite result (RR 0.67 CI95% 0.57-0.79) that did not persist after the adjustment. Expectant management had a lower probability of APGAR <7 the first minute (21.6% vs. 40%, RR 0.53 CI95% 0.29-0.97) and neonatal composite result (60% vs. 83.3%, RR 0.72 CI95% 0.57-0.90). When adjusting the age under 28 weeks of delivery, the expectant management showed a lower probability of APGAR under 7 at minute one (RR 0.43 CI95% 0.24-0.75), composite outcome of perinatal adverse events (RR 0.62 CI95% 0.48-0.81), neonatal death (RR 0.26 CI95% 0.29-0.71), respiratory distress syndrome (RR 0.65 CI95% 0.48-0.88), intraventricular hemorrhage (RR 0.31 CI95% 0.11-0.89) and admission to the neonatal intensive care unit (RR 0.80 CI95% 0.70-0.92). Conclusion: severe preeclampsia remote from term is a severe and complex disease which faces maternal and neonatal interests. Due to approach controversies, management should be performed in high complexity centers with a multidisciplinary approach individualizing each binomial; our findings suggest expectant management is reasonable when both maternal and fetal conditions allow it, especially in pregnancies under 28 weeks of gestational age to improve fetal outcomes without risking maternal outcomes.

RESUMO

Two zoonotic protozoan pathogens, Giardia duodenalis and Toxoplasma gondii, are important causes of waterborne infections in the Quindío region in Colombia. No previous data exist on how contamination occurs at the source for drinking water consumed by the human population in this region. Our aim was to describe the frequency of G. duodenalis and T. gondii DNA in 11 sampling points during a five-month period in water and adjacent soil at the Quindío River basin (Andean region in the central western part of Colombia). The study employed nested PCR for T. gondii, using the B1 gene as the amplification target, and single-round PCR for G. duodenalis assemblage A and assemblage B, amplifying the gdh gene, followed by DNA sequencing. In 50 soil samples, 28% (14/50) were positive for T. gondii. For G. duodenalis, distribution was in equal parts for assemblage A (8%; 4/50) and assemblage B (8%, 4/50). Genotyping of T. gondii sequences showed two soil samples with type I strain, another two samples of soil with type III strain, but most samples were of unidentified strains. In water samples, T. gondii was detected in 9.1% (5/55), G. duodenalis assemblage A in 34.5% (19/55), and G. duodenalis assemblage B in 12.7% (7/55). T. gondii DNA positivity was associated with lower soil temperature (p = 0.0239). Presence of G. duodenalis and T. gondii was evidenced in soil and water samples in the Quindío River basin, indicating soil as the potential source of contamination for the river that it is destined for human consumption. Monitoring these protozoa in drinking water is necessary to prevent public health risks in human populations.

RESUMO

Interpretation of IgM anti-Toxoplasma can be problematic given the phenomena of "natural" IgM. We analyzed 1,503 sera obtained during prenatal care program, and we established natural and false-positive results by doing follow-up. In 101 samples the concordance between enzyme linked immunosorbent assay (ELISA) and two semi-automatized systems: electro-chemiluminescence immunoassay (ELECSYS) and vitek immunodiagnostic assay system (VIDAS) was calculated. In 1,503 serum, 71 (4,7%) had ELISA IgG negative and ELISA IgM positive results and in 44 of these had a second sample 4 weeks later. In second samples, 27 (61,3 %) were IgM and IgG negative (false positive result in the first sample) and 13 (29,5%) were ELISA IgM positive and IgG negative (natural IgM). ELISA assay had a poor concordance with enzyme-linked fluorescent immunoassay as well as ELECSYS tests, contrarily, enzyme-linked fluorescent immunoassay and ELECSYS had optimal concordance, with 100 of 101 sera obtaining the same result by both tests. We recommended to use automatized assays to measure IgM anti-Toxoplasma.

Assuntos

Toxoplasma , Toxoplasmose , Anticorpos Antiprotozoários , Colômbia , Ensaio de Imunoadsorção Enzimática/métodos , Feminino , Humanos , Imunoglobulina G , Imunoglobulina M , Gravidez , Gestantes , Toxoplasmose/diagnóstico

RESUMO

Resumen Objetivo: Describir la efectividad del tratamiento antiparasitario intestinal brindado a niños de cuatro a nueve años atendidos en el centro de Salud de la Universidad del Quindío entre Julio de 2017 a marzo de 2018. Materiales y métodos: Estudio observacional prospectivo. Se extrajeron datos de historias clínicas de pacientes con rango de edad de 4 a 9 años, quienes consultaron en el Centro de Salud de la Universidad del Quindío y se diagnosticaron mediante coprológico con blastocistosis o giardiasis. Se seleccionaron las historias cuyo tratamiento fuese Nitazoxanida y tuviesen un coprológico control postratamiento. Se presentan estadísticas descriptivas; porcentaje de eficacia y tolerabilidad. Resultados: De 15 niños tratados con Nitazoxanida, respondieron al tratamiento 10, en quienes no se hallaron parásitos en el coprológico control. Con una eficacia del 83,3% (IC95% 60 - 100) en blastocistosis, 57,1% (IC95% 32 - 82%) en giardiasis. Conclusión: Se evidenciaron resultados porcentuales similares a los reportados en la literatura, siendo más eficaz en blastocisotisis que en giardiasis.

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Abstract Objective: To describe the effectiveness of the intestinal antiparasitic treatment given to children ranging between 4 and 9 years old that were attended in the Health Center of the University of Quindío in the period of July 2017 and March 2018. Materials and methods: Prospective observational study. Data were extracted from medical records of patients with an age range of 4 to 9 years, who consulted at the Health Center of the University of Quindío and were diagnosed through coprological tests with Blastocystis and Giardiasis. The clinical records were selected by whose treatment was done with Nitazoxanide or Albendazole with coprological results of post-treatment check-up. Descriptive statistics are presented along with percentage of efficacy and tolerability. Results: From 15 children treated with Nitazoxanide, 10 responded to the treatment, who presented no parasites in the coprological check-up. The remaining population presented some type of parasitic infection (n = 5). With an efficiency of 83,3% (IC95% 32 - 82%) in blastocystis, and 57,1% (IC95% 32 - 82%) in giardiasis. Conclusion: Percentage results similar to those reported in the literature were evidenced, being more effective in blastocystis than in giardiasis.