Lower urinary tract dysfunction in chronic Chagas disease: clinical and urodynamic presentation

Gastrointestinal Manifestations of Chagas Disease: A Systematic Review with Meta-Analysis

The aims of this study were to estimate the prevalence of gastrointestinal manifestations among individuals with positive serology for Chagas disease (ChD) and to describe the clinical gastrointestinal manifestations of the disease. A systematic review with meta-analysis was conducted based on the criteria and recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. The PubMed, Scopus, Virtual Health Library, Web of Science, and Embase databases were used to search for evidence. Two reviewers independently selected eligible articles and extracted data. RStudio® software was used for the meta-analysis. For subgroup analysis, the studies were divided according to the origin of the individuals included: 1) individuals from health units were included in the health care service prevalence analysis, and 2) individuals from the general population were included in the population prevalence analysis. A total of 2,570 articles were identified, but after removal of duplicates and application of inclusion criteria, 24 articles were included and 21 were part of the meta-analysis. Most of the studies were conducted in Brazil. Radiological diagnosis was the most frequent method used to identify the gastrointestinal clinical form. The combined effect of meta-analysis studies showed a prevalence of gastrointestinal manifestations in individuals with ChD of 12% (95% CI, 8.0-17.0%). In subgroup analysis, the prevalence for studies involving health care services was 16% (95% CI, 11.0-23.0%), while the prevalence for population-based studies was 9% (95% CI, 5.0-15.0%). Megaesophagus and megacolon were the main forms of ChD presentation in the gastrointestinal form. The prevalence of gastrointestinal manifestations of ChD was 12%. Knowing the prevalence of ChD in its gastrointestinal form is an important step in planning health actions for these patients.

Trypanosoma cruzi Central Nervous System Infection-Pathogenesis, Clinical Manifestations, Diagnosis, and Treatment

Purpose of Review

Chagas disease (CD) is a neglected tropical disease from the American continent that commonly causes cardiovascular disease. Some patients develop neurological manifestations. We discuss and summarize the pathogenesis, clinical characteristics, diagnosis, and treatment of the central nervous system manifestations of CD.

Recent Findings

Cerebrospinal fluid quantitative polymerase chain reaction tests and next-generation sequencing in tissue samples have facilitated disease diagnosis and follow-up. Novel presentations, including retinitis, are now reported. A new MRI sign called "Bunch of açai berries appearance"-multiple hypointense nodular lesions-has been described recently. Treatment with benznidazole at higher doses and the role of therapeutic drug monitoring need to be further studied in this setting.

Summary

A high suspicion index is paramount to diagnosing Chagas' central nervous system involvement. Standardized molecular diagnostics can aid in the initial workup. Future development of new therapeutic drugs is crucial because of the toxicity profile of the currently available medications.

Clinical Effect of Acupuncture Combined with Traditional Chinese Medicine Application on the Treatment of Functional Dyspepsia in Children and the Influence on Serum 5-HT and NO Levels

Objective

To explore the clinical effect of acupuncture combined with traditional Chinese medicine (TCM) application on the treatment of functional dyspepsia (FD) in children and the influence on serum 5-HT and NO levels.

Methods

94 FD children admitted to the pediatric department of our hospital from March 2019 to March 2020 were selected as the research object and divided into the study group (n = 45) and reference group (n = 49) by the number table method. The routine Western medicine therapy was given to the reference group and the combination therapy of acupuncture and TCM application was given to the study group to analyze the effect of different therapies on FD children by detecting their serum 5-hydroxytryptamine (5-HT) and nitric oxide (NO) levels and electrogastrogram (EGG) before and after treatment.

Results

The sex ratio, mean age, mean duration of disease, mean weight, mean BMI value, and residence of children in the two groups were not significantly different (P > 0.05); after treatment, the study group obtained significantly lower symptom scores and shorter disappearance time of clinical symptoms when comparing with the reference group (P < 0.001); the total clinical effective rate of the study group was significantly higher than that of the reference group (P < 0.05); the treated serum 5-HT and NO levels of children in both groups were significantly lower than those before treatment (P < 0.05), and in the between-group comparison, those of the study group were significantly lower (P < 0.05); and the treated AP, FP, and normal slow wave ratio of gastric antrum and body were significantly higher in the study group than in the reference group (P < 0.05).

Conclusion

The combination therapy of acupuncture and TCM application is a reliable method for improving the clinical symptoms in FD children. This strategy greatly reduces the levels of serum factors in child patients and shortens the corresponding treatment time. Further research will be conducive to establishing a better solution for such patients.

Kidney complications of parasitic diseases

Parasitic agents have been known to cause human disease since ancient times and are endemic in tropical and subtropical regions. Complications of parasitic diseases, including kidney involvement, are associated with worse outcomes. Chagas disease, filariasis, leishmaniasis, malaria and schistosomiasis are important parasitic diseases that can damage the kidney. These diseases affect millions of people worldwide, primarily in Africa, Asia and Latin America, and kidney involvement is associated with increased mortality. The most common kidney complications of parasitic diseases are acute kidney injury, glomerulonephritis and tubular dysfunction. The mechanisms that underlie parasitic disease-associated kidney injury include direct parasite damage; immunological phenomena, including immune complex deposition and inflammation; and systemic manifestations such as haemolysis, haemorrhage and rhabdomyolysis. In addition, use of nephrotoxic drugs to treat parasitic infections is associated with acute kidney injury. Early diagnosis of kidney involvement and adequate management is crucial to prevent progression of kidney disease and optimize patient recovery.

Scientific Research in Ecuador: A Bibliometric Analysis

Ecuador has shown a growth in its scientific production since 2011, representing 85% of the total historical production. These investigations are reflected in scientific publications, which address world interest topics and serve as a link for the university, business, and society. This work aims to analyze the scientific production generated by Ecuador in the period of 1920–2020 using bibliometric methods to evaluate its intellectual structure and performance. The methodology applied in this study includes: (i) terms definition and search criteria; (ii) database selection, initial search, and document compilation; (iii) data extraction and software selection; and finally, (iv) analysis of results. The results show that scientific production has been consolidated in 30,205 documents, developed in 27 subject areas, in 13 languages under the contribution of 84 countries. This intellectual structure is in harmony with the global context when presenting research topics related to “Biology and regional climate change”, “Higher education and its various approaches”, “Technology and Computer Science”, “Medicine”, “Energy, food and water”, and ”Development and applications on the Web”. Topics framed in the Sustainable Development Goals (SDGs), sustainability, climate change, and others. This study contributes to the academic community, considering current re-search issues and global concerns, the collaboration between universities and countries that allow establishing future collaboration links.

Patient-reported outcomes in adult females with bladder exstrophy: A study of long-term sexual, reproductive and urinary outcomes using social media

INTRODUCTION

Limited data exist on patient-reported outcomes in adults with bladder exstrophy (BE). We partnered with the Association for the Bladder Exstrophy Community (A-BE-C) using social media to survey adult females with BE. The aim of the study was to assess long-term patient-reported sexual, reproductive and continence outcomes.

MATERIALS AND METHODS

Between December 3, 2018 and January 18, 2019, A-BE-C promoted an anonymous survey of adult females with BE on social media. The survey included the Female Sexual Function Index (FSFI) and International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF) in addition to questions on demographics, reproductive and gynecological outcomes.

RESULTS

A total of 130 women with a median age of 30 years (IQR 26, 41) completed the survey. The majority of women were born in the United States (N = 86, 66.2%). Women reported a median of 10 (IQR 5, 17) surgeries performed for their condition. The mean ICIQ-SF score was 6.2 ± 6.2 (moderate). Only 19.2% (N = 25) reported volitionally voiding and the majority reported intermittent catheterization through a catheterizeable channel or the urethra (Summary Table). The mean FSFI score was (20.1 ± 9.0), indicating risk for sexual dysfunction (FSFI < 26.55). Of the respondents, 28.5% (N = 37) were treated for uterine prolapse, 56.9% (N = 74) required surgery in order to use tampons or have penetrative intercourse, and over half (55.4%) reported some degree of dissatisfaction with the appearance of their external genitalia. Forty-seven women (36.2%) reported pregnancies, and of these 32 (68.1%) reported complications with pregnancy. Outcomes of 100 pregnancies included miscarriage/abortion (41.0%), preterm vaginal (3.0%), preterm cesarean section (19.0%), term vaginal (2.0%), and term cesarean section (35.0%). Seven (15.2%) women identified having children with a medical diagnosis, none of which included BE. Infertility was reported in 17.3% (22/127) women. Women identified sexual function, fertility, and body image as areas that need future research.

CONCLUSION

This is the largest study of patient-reported outcomes in females with BE achieved through partnership with an advocacy group and social media. We found that continence and sexual function were both impaired in adult women with BE. Respondents reported poor obstetric and gynecological outcomes including infertility, uterine prolapse, vaginal stenosis, and need for multiple surgeries. BE surgeons, through multi-institutional collaboration, should continue to reassess surgical techniques at initial repair to better address these functional issues. These results should be a part of counseling parents of newborns with BE.

Noninvasive Biological Samples to Detect and Diagnose Infections due to Trypanosomatidae Parasites: A Systematic Review and Meta-Analysis

Unicellular eukaryotes of the Trypanosomatidae family include human and animal pathogens that belong to the Trypanosoma and Leishmania genera. Diagnosis of the diseases they cause requires the sampling of body fluids (e.g., blood, lymph, peritoneal fluid, cerebrospinal fluid) or organ biopsies (e.g., bone marrow, spleen), which are mostly obtained through invasive methods. Body fluids or appendages can be alternatives to these invasive biopsies but appropriateness remains poorly studied. To further address this question, we perform a systematic review on clues evidencing the presence of parasites, genetic material, antibodies, and antigens in body secretions, appendages, or the organs or proximal tissues that produce these materials. Paper selection was based on searches in PubMed, Web of Science, WorldWideScience, SciELO, Embase, and Google. The information of each selected article (n = 333) was classified into different sections and data were extracted from 77 papers. The presence of Trypanosomatidae parasites has been tracked in most of organs or proximal tissues that produce body secretions or appendages, in naturally or experimentally infected hosts. The meta-analysis highlights the paucity of studies on human African trypanosomiasis and an absence on animal trypanosomiasis. Among the collected data high heterogeneity in terms of the I2 statistic (100%) is recorded. A high positivity is recorded for antibody and genetic material detection in urine of patients and dogs suffering leishmaniasis, and of antigens for leishmaniasis and Chagas disease. Data on conjunctival swabs can be analyzed with molecular methods solely for dogs suffering canine visceral leishmaniasis. Saliva and hair/bristles showed a pretty good positivity that support their potential to be used for leishmaniasis diagnosis. In conclusion, our study pinpoints significant gaps that need to be filled in order to properly address the interest of body secretion and hair or bristles for the diagnosis of infections caused by Leishmania and by other Trypanosomatidae parasites.