Internal medicine emerged as a new medical specialty in the second half of the 19th century. It was based on a novel diagnostic and therapeutic paradigm, and included pathophysiologic interpretation of physical examination, laboratory tests, and imaging techniques, in contrast with previous descriptive approach to clinical problems. Professor Edward J. Sas-Korczyński in 1891 proposed to organize Polish meetings on internal medicine. The proposal was implemented only in 1906 by Antoni W. Gluziński, a famous Polish internist. Despite obstacles set by the partitioning powers, the Society of Internists of the Polish Lands was founded. The name of the association was changed to the Polish Society of Internal Medicine during the congress held in Vilna (now Vilnius) in 1923, the first one organized in the independent Poland. The journal of the Society, Polish Archives of Internal Medicine, was founded and Antoni W. Gluziński was its first editor-in-chief. Later, the journal was edited by Władysław Janowski, Witold E. Orłowski, Andrzej Biernacki, Tadeusz Orłowski, Artur Czyżyk, and Anetta Undas. Witold E. Orłowski was a father of modern Polish internal medicine, and contributed to the development of its subspecialties and their societies. Most of them had roots in the specialist sections of the Polish Society of Internal Medicine. The journal supported the newly founded societies by publication of issues focused on selected subspecialties. Despite the development of subspecialties, the role of internal medicine as a holistic discipline covering the diagnosis and therapy of many organs does not decrease.
Dynamic development of medicine in the 20th and 21st centuries has only been possible due to its split into narrow specialties. The increasingly complicated and costly technologies used in clinical practice can only be mastered by small groups of highly‑ qualified specialists; however, diagnosis and treatment are not about matching a patient with the latest and most sophisticated technologies but about finding an optimal patient‑ oriented solution, as it is the human being as a whole that needs help. To achieve this goal, a close collaboration of different specialists is required, but the key role rests with a physician with good general internal medicine skills and the right motivation to act. Management of patients presenting to internal medicine departments requires not only the skill of appropriate pathophysiological reasoning based on extensive knowledge and acquired experience, but many times also the civil courage of the physician. The task is further complicated by chronic underfunding of these wards. The aim of the present review is to reflect on the current state and prospects of Polish internal medicine as well as to attempt a definition of an internist and their role in the integration of different medical specialties. It also stresses the importance of a master in the teaching and practice of medicine and presents profiles of 4 eminent Polish internists.
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Bibliometrics evaluates the quality of biomedical journals. The aim of this study has been to compare the main bibliometric indexes of the official journals of scientific societies of Internal Medicine in Europe. Bibliometric information was obtained from the Web of Science (WoS) and Scopus databases. Both impact metrics (Journal Impact Factor [JIF], CiteScore) and normalized metrics (Journal Citation Indicator [JCI], Normalized Eigenfactor, Source Normalized Impact per Paper [SNIP] and SCImago Journal Rank [SJR]) of the journals for the year 2022 were analyzed, and their evolution over the last decade was described. Twenty-three official journals from 33 scientific societies were evaluated. Eight journals were included in WoS and 11 in Scopus. The best positioned journals in 2022 were: 1) European Journal of Internal Medicine, which ranked in the first quartile (Q1) for JIF, CiteScore and JCI metrics, exceeding values of 1 in Normalized Eigenfactor and SNIP metrics; 2) Internal and Emergency Medicine, with Q1 for CiteScore and JCI metrics, and with values >1 in Normalized EigenFactor and SNIP metrics; 3) Polish Archives of Internal Medicine, with Q1 for JCI metrics; 4) Revista Clínica Española, with Q2 for JIF, CiteScore and JCI metrics; and 5) Acta Medica Belgica, with Q2 for CiteScore and JCI metrics. These journals increased their impact metrics in the last 3 years, in parallel with the COVID pandemic. Five official journals of European Internal Medicine societies, including Revista Clínica Española, meet high quality standards.
Research collaboration contributes to the advancement of knowledge by exploiting the results of scientific efforts more efficiently, but the global patterns of collaboration on meta-analysis are unknown. The purpose of this research was to describe and characterize the global collaborative patterns in meta-analyses of randomized trials published in high impact factor medical journals over the past three decades. This was a cross-sectional, social network analysis. We searched PubMed for relevant meta-analyses of randomized trials published up to December 2012. We selected meta-analyses (including at least randomized trials as primary evidence source) published in the top seven high impact factor general medical journals (according to Journal Citation Reports 2011): The New England Journal of Medicine, The Lancet, the BMJ, JAMA, Annals of Internal Medicine, Archives of Internal Medicine (now renamed JAMA Internal Medicine), and PLoS Medicine. Opinion articles, conceptual papers, narrative reviews, reviews without meta-analysis, reviews of reviews, and other study designs were excluded. Overall, we included 736 meta-analyses, in which 3,178 authors, 891 institutions, and 51 countries participated. The BMJ was the journal that published the greatest number of articles (39%), followed by The Lancet (18%), JAMA (15%) and the Archives of Internal Medicine (15%). The USA, the UK, and Canada headed the absolute global productivity ranking in number of papers. The 64 authors and the 39 institutions with the highest publication rates were identified. We also found 82 clusters of authors (one group with 55 members and one group with 54 members) and 19 clusters of institutions (one major group with 76 members). The most prolific authors were mainly affiliated with the University of Oxford (UK), McMaster University (Canada), and the University of Bern (Switzerland). Our analysis identified networks of authors, institutions and countries publishing meta-analyses of randomized trials in high impact medical journals. This valuable information may be used to strengthen scientific capacity for collaboration and to help to promote a global agenda for future research of excellence.
Lower respiratory infections (LRIs) remain the world's leading infectious cause of death. This analysis from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2023 provides global, regional, and national estimates of LRI incidence, mortality, and disability-adjusted life-years (DALYs), with attribution to 26 pathogens, including 11 newly modelled pathogens, across 204 countries and territories from 1990 to 2023. With new data and revised modelling techniques, these estimates serve as an update and expansion to GBD 2021. Through these estimates, we also aimed to assess progress towards the 2025 Global Action Plan for the Prevention and Control of Pneumonia and Diarrhoea (GAPPD) target for pneumonia mortality in children younger than 5 years. Mortality from LRIs, defined as physician-diagnosed pneumonia or bronchiolitis, was estimated using the Cause of Death Ensemble model with data from vital registration, verbal autopsy, surveillance, and minimally invasive tissue sampling. The Bayesian meta-regression tool DisMod-MR 2.1 was used to model overall morbidity due to LRIs. DALYs were calculated as the sum of years of life lost (YLLs) and years lived with disability (YLDs) for all locations, years, age groups, and sexes. We modelled pathogen-specific case-fatality ratios (CFRs) for each age group and location using splined binomial regression to create internally consistent estimates of incidence and mortality proportions attributable to viral, fungal, parasitic, and bacterial pathogens. Progress was assessed towards the GAPPD target of less than three deaths from pneumonia per 1000 livebirths, which is roughly equivalent to a mortality rate of less than 60 deaths per 100 000 children younger than 5 years. In 2023, LRIs were responsible for 2·50 million (95% uncertainty interval [UI] 2·24-2·81) deaths and 98·7 million (87·7-112) DALYs, with children younger than 5 years and adults aged 70 years and older carrying the highest burden. LRI mortality in children younger than 5 years fell by 33·4% (10·4-47·4) since 2010, with a global mortality rate of 94·8 (75·6-116·4) per 100 000 person-years in 2023. Among adults aged 70 years and older, the burden remained substantial with only marginal declines since 2010. A mortality rate of less than 60 deaths per 100 000 for children younger than 5 years was met by 129 of the 204 modelled countries in 2023. At a super-regional level, sub-Saharan Africa had an aggregate mortality rate in children younger than 5 years (hereafter referred to as under-5 mortality rate) furthest from the GAPPD target. Streptococcus pneumoniae continued to account for the largest number of LRI deaths globally (634 000 [95% UI 565 000-721 000] deaths or 25·3% [24·5-26·1] of all LRI deaths), followed by Staphylococcus aureus (271 000 [243 000-298 000] deaths or 10·9% [10·3-11·3]), and Klebsiella pneumoniae (228 000 [204 000-261 000] deaths or 9·1% [8·8-9·5]). Among pathogens newly modelled in this study, non-tuberculous mycobacteria (responsible for 177 000 [95% UI 155 000-201 000] deaths) and Aspergillus spp (responsible for 67 800 [59 900-75 900] deaths) emerged as important contributors. Altogether, the 11 newly modelled pathogens accounted for approximately 22% of LRI deaths. This comprehensive analysis underscores both the gains achieved through vaccination and the challenges that remain in controlling the LRI burden globally. Furthermore, it demonstrates persistent disparities in disease burden, with the highest mortality rates concentrated in countries in sub-Saharan Africa. Globally, as well as in these high-burden locations, the under-5 LRI mortality rate remains well above the GAPPD target. Progress towards this target requires equitable access to vaccines and preventive therapies-including newer interventions such as respiratory syncytial virus monoclonal antibodies-and health systems capable of early diagnosis and treatment. Expanding surveillance of emerging pathogens, strengthening adult immunisation programmes, and combating vaccine hesitancy are also crucial. As the global population ages, the dual challenge of sustaining gains in child survival while addressing the rising vulnerability in older adults will shape future pneumonia control strategies. Gates Foundation.
Clinical heterogeneity can be defined as differences in participant characteristics, types or timing of outcome measurements and intervention characteristics. Clinical heterogeneity in systematic reviews has the possibility to significantly affect statistical heterogeneity leading to inaccurate conclusions and misled decision making. The aim of this study is to identify to what extent investigators are assessing clinical heterogeneity in both Cochrane and non-Cochrane systematic reviews. The most recent 100 systematic reviews from the top five journals in medicine-JAMA, Archives of Internal Medicine, British Medical Journal, The Lancet, and PLOS Medicine-and the 100 most recently published and/or updated systematic reviews from Cochrane were collected. Various defined items of clinical heterogeneity were extracted from the included reviews. Investigators used chi-squared tests, logarithmic modeling and linear regressions to determine if the presence of such items served as a predictor for clinical heterogeneity when comparing Cochrane to non-Cochrane reviews. Extracted variables include number of studies, number of participants, presence of quantitative synthesis, exploration of clinical heterogeneity, heterogeneous characteristics explored, basis and methods used for investigating clinical heterogeneity, plotting/visual aids, author contact, inferences from clinical heterogeneity investigation, reporting assessment, and the presence of a priori or post-hoc analysis. A total of 317 systematic reviews were considered, of which 199 were in the final analysis. A total of 81% of Cochrane reviews and 90% of non-Cochrane reviews explored characteristics that are considered aspects of clinical heterogeneity and also described the methods they planned to use to investigate the influence of those characteristics. Only 1% of non-Cochrane reviews and 8% of Cochrane reviews explored the clinical characteristics they initially chose as potential for clinical heterogeneity. Very few studies mentioned clinician training, compliance, brand, co-interventions, dose route, ethnicity, prognostic markers and psychosocial variables as covariates to investigate as potentially clinically heterogeneous. Addressing aspects of clinical heterogeneity was not different between Cochrane and non-Cochrane reviews. The ability to quantify and compare the clinical differences of trials within a meta-analysis is crucial to determining its applicability and use in clinical practice. Despite Cochrane Collaboration emphasis on methodology, the proportion of reviews that assess clinical heterogeneity is less than those of non-Cochrane reviews. Our assessment reveals that there is room for improvement in assessing clinical heterogeneity in both Cochrane and non-Cochrane reviews.
Chagas disease is a neglected tropical disease caused by the protozoan Trypanosoma cruzi, primarily transmitted by infected bugs, but also through contaminated food, transfusions, congenital transmission, and organ transplantation. Chagas disease has acute and chronic phases; the chronic phase can occur decades after infection, leading to complications such as heart failure, arrhythmias, and megaviscera. Accurate mortality and morbidity estimates are hindered by under-reporting and misclassification. Comprehensive and updated estimates are needed to improve global assessments of Chagas disease burden. We aim to provide a comprehensive description of global and regional burden of Chagas disease and its trends from 1990 to 2023. In this systematic analysis for the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2023, we produced estimates of Chagas disease deaths, years of life lost (YLLs), prevalence, incidence, years lived with disability (YLDs), and disability-adjusted life-years (DALYs) for 204 countries and territories from 1990 to 2023 by age and sex. The GBD 2023 estimates supersede previous estimates for all years. For mortality estimates, we fit a cause of death ensemble model to vital registration data. For non-fatal estimates in endemic locations, we did a systematic review of seroprevalence data, defining a confirmed case as a confirmed diagnosis of T cruzi infection by two different positive tests (or a single ELISA or immunochromatographic test). After adjustment for the population at risk, we used a Bayesian compartmental model (DisMod-MR) to produce estimates. For non-endemic locations, we estimated prevalence on the basis of migration patterns and estimated prevalence from endemic countries. Prevalence of acute and chronic sequelae and corresponding disability weights were used to calculate YLDs. We estimated 10·5 million (95% uncertainty interval 9·4-11·7) Chagas disease prevalent cases in 2023 globally, a 16·1% (12·6-19·2) decrease compared with 1990. The global age-standardised Chagas disease prevalence rate declined by 55·0% (53·8-56·1) from 1990 to 2023, with rates decreasing across all endemic regions. The highest age-standardised Chagas disease prevalence rates in 2023 were in southern Latin America (2485·9 [2249·6-2707·7] per 100 000) and Andean Latin America (2313·8 [2093·7-2570·1] per 100 000). Non-endemic regions experienced notable increases in prevalence due to migration from endemic countries. The age distribution of cases shifted over time, peaking at older ages in 2023 (between age 45 years and 65 years) compared with 1990 (30-45 years). In 2023, there were 352 000 (308 000-398 000) new cases of Chagas disease globally, with the age-standardised rate decreasing by 55·1% (53·4-56·6) since 1990. There were 8420 (7480-9360) deaths globally in 2023. Age-standardised mortality decreased by 72·5% (68·9-75·4) globally from 1990 to 2023. In 2023, the highest age-standardised mortality rates were in tropical Latin America (2·2 [1·9-2·4] per 100 000) and Andean Latin America (0·92 [0·70-1·2] per 100 000). The GBD 2023 Chagas disease estimates are notably higher than previous GBD estimates, reflecting additional data and methodological improvements, and those published by the Pan American Health Organization. Nevertheless, these updated estimates show decreasing prevalence and incidence in endemic countries, highlighting the importance of socioeconomic development, housing conditions, and vector-control policies. Conversely, the increase in prevalence in non-endemic countries, mainly due to migration, requires new strategies for screening, early recognition, and access to care. Although the marked decrease in mortality and YLLs might be due to better access to care at different levels, the shift in age distribution highlights the importance of preparing and funding health systems for caring for older populations with advanced sequelae. Finally, the continuous refinement of data-source quality, including adequate coding and classification, is crucial for the accuracy of global estimates, which can ultimately drive health and social policies. The Gates Foundation, the World Heart Federation, and Novartis Pharma.
To examine changes in representation of women among first authors of original research published in high impact general medical journals from 1994 to 2014 and investigate differences between journals. Observational study. All original research articles published in Annals of Internal Medicine, Archives of Internal Medicine, The BMJ, JAMA, The Lancet, and the New England Journal of Medicine (NEJM) for one issue every alternate month from February 1994 to June 2014. Time and journal of publication. Prevalence of female first authorship and its adjusted association with time of publication and journal, assessed using a multivariable logistic regression model that accounted for number of authors, study type and specialty/topic, continent where the study was conducted, and the interactions between journal and time of publication, study type, and continent. Estimates from this model were used to calculate adjusted odds ratios against the mean across the six journals, with 95% confidence intervals and P values to describe the associations of interest. The gender of the first author was determined for 3758 of the 3860 articles considered; 1273 (34%) were women. After adjustment, female first authorship increased significantly from 27% in 1994 to 37% in 2014 (P<0.001). The NEJM seemed to follow a different pattern, with female first authorship decreasing; it also seemed to decline in recent years in The BMJ but started substantially higher (approximately 40%), and The BMJ had the highest total proportion of female first authors. Compared with the mean across all six journals, first authors were significantly less likely to be female in the NEJM (adjusted odds ratio 0.68, 95% confidence interval 0.53 to 0.89) and significantly more likely to be female in The BMJ (1.30, 1.01 to 1.66) over the study period. The representation of women among first authors of original research in high impact general medical journals was significantly higher in 2014 than 20 years ago, but it has plateaued in recent years and has declined in some journals. These results, along with the significant differences seen between journals, suggest that underrepresentation of research by women in high impact journals is still an important concern. The underlying causes need to be investigated to help to identify practices and strategies to increase women's influence on and contributions to the evidence that will determine future healthcare policies and standards of clinical practice.
Persisting sex- and gender-based disparities in access to high-quality, personalized health care in the United States can lead to devastating outcomes with long-lasting consequences. Strategic use of virtual resources could expand equitable health care access for women. However, optimal approaches and timing for individualized, virtually delivered health care for women are unclear. This study aims to conduct a detailed analysis of the current literature to answer the following question: "According to women and their health care teams, what are the reported successes and challenges in accessing, delivering, and participating in synchronous virtual health care for women?" We conducted a qualitative evidence synthesis using a best-fit framework approach based on the Nonadoption, Abandonment, Scale-up, Spread, and Sustainability (NASSS) framework and concepts from the Public Health Critical Race Praxis. We searched MEDLINE, Embase, and CINAHL from January 1, 2010, to October 10, 2022, using a combination of database-specific, relevant, controlled vocabulary terms and keywords; this search was updated in MEDLINE through January 2024. Additional citations were identified through handsearching. Our eligibility criteria were developed using the Sample, Phenomenon of Interest, Design, Evaluation, Research type tool to identify qualitative studies addressing synchronous virtual care for women. Citations were screened in duplicate, and eligible articles were abstracted. An iterative thematic synthesis approach was used to identify descriptive themes related to the successes and challenges related to delivering high-quality virtual care. Data reduction was performed using inductive and deductive reasoning. Quality assessment was conducted using the Critical Appraisal Skills Program and certainty of evidence using Confidence in the Evidence from Reviews of Qualitative Research approaches. Of 85 eligible articles, we sampled 51 (60%) for data extraction based on representation of patient and clinician perspectives, marginalized voices, and relevance to a variety of clinical contexts. We identified themes across NASSS domains, including difficulty building rapport and emotional connections in the virtual setting, the amplification of barriers for women with preexisting challenges (eg, language barriers, limited transportation, and family and social commitments), and differing perceptions of privacy and safety related to virtual care depending on patient home context. Themes found to have high confidence included the value of convenience and cost savings offered by virtual care, the importance of patient choice in visit modality, the potential for negative impact on user well-being, considering the clinical context of modality choice, the importance of technology usability, and the value of virtual care for women located in regions without adequate supply of clinical offerings. The benefits of virtual care for health care access may be more acutely felt by women, especially those with preexisting challenges. Strategic incorporation of virtual modalities into health care delivery for women could improve equitable access to high quality, patient-centered care. PROSPERO CRD42021283791; https://www.crd.york.ac.uk/PROSPERO/view/CRD42021283791. RR2-10.1089/heq.2023.0089.
Women veterans are the fastest-growing veteran subpopulation in the US. Women veterans often experience military service-related health issues in addition to conditions common to all women. Because women veterans are more likely to receive care in the civilian setting than through the Department of Veterans Affairs (VA), all women's health clinicians should be equipped to provide patient-centered care for women veterans. The health care of women veterans requires evidence-based care informed by population-specific scientific literature. An updated evidence map evaluating women veteran-focused health literature is needed. To map the scope and breadth of women veterans' health literature published from 2016 to 2023. In this systematic review, MEDLINE, Embase, and CINAHL Complete were searched for eligible articles published from 2016 to 2023. Articles reporting about US women veterans' health outcomes or on the experience of providing care to women veterans were included. Included articles were required to report patient-level outcomes that included either data for only women veterans or reported results separately for women veterans. Articles were grouped by primary focus area based on categories previously established by the VA Women's Health research agendas and prior evidence maps. The volume of women veterans' health literature published between 2016 and 2023 of 932 articles was double that of the prior 8 years. The largest portion of this literature was focused on chronic medical conditions (137 articles [15%]), general mental health (203 articles [22%]), and interpersonal violence (121 articles 3[13%]). Areas of greatest growth included reproductive health (physical and mental), pain, suicide, and nonsuicidal self-injury. Additionally, emerging areas of inquiry were found, including military-related toxic exposures and harassment within the health care setting. In this systematic review of literature focused on the health of women veterans, the volume of literature was found to have doubled and expanded in important areas that aligned with VA research priorities. However, despite the growth in research related to women veterans, several important research gaps remain within this field of study. Research addressing health issues pertinent to a growing and aging women veterans' population will require rigorous research and program evaluations.
To evaluate outcomes of proximal humerus fractures (PHFs) treated with locked plating constructs and assess association between fracture reduction and outcome. Retrospective cohort study. Academic tertiary care hospital and affiliated level 1 Trauma Center. All patients treated with proximal humerus locked plating for PHFs (OTA/AO 11A/B/C) by 3 fellowship-trained orthopaedic traumatologists from 2008 to 2020 were screened. Patients were excluded for <12-month follow-up, lack of preoperative radiographic imaging, segmental fracture, isolated tuberosity fracture, humeral nailing, and revision surgery as initial procedure at the study institution. Fracture pattern, reduction, fixation characteristics, and failure were radiographically evaluated. Functional outcomes were assessed using range of motion, American Shoulder and Elbow Surgeons score, QuickDASH, Constant score, and SF-12. Survivorship was calculated using the Kaplan-Meier method. Association of variables with failure was assessed. Among 153 patients treated for PHFs with proximal humerus locked plating, there were 23 OTA/AO A-type, 40 B-type, and 90 C-type fractures. Mean follow-up was 66 months, and mean age 59 ± 15 years (68% female). Mean postoperative coronal alignment was 135 degrees, 91% were fixed within 120-150 degrees, and 53% within 130-140 degrees. Sagittal reduction was neutral in 94%. Medial column restoration was achieved in 80%. Survivorship free from revision surgery was 89% at 5 years. Reduction with coronal alignment outside all neutral reduction ranges (120-150 degrees, 125-145 degrees, 130-140 degrees) and sagittal alignment outside neutral were associated with both radiographic failure and revision surgery ( P < 0.05). Preoperative factors associated with failure included female sex, number of fragments, head-split, fracture-dislocation, valgus coronal alignment, and medial calcar displacement ( P < 0.05). Functional outcomes included overall mean American Shoulder and Elbow Surgeons score of 81 ± 21, QuickDASH 16 ± 19, Constant 80 ± 18, SF-12 Physical 50 ± 9, SF-12 Mental 53 ± 8, active forward flexion 145 ± 33 degrees, active abduction 140 ± 35 degrees, active external rotation 73 ± 24 degrees. Proximal humerus locked plating demonstrated a survivorship free from revision surgery of 89% free at 5 years and favorable functional outcomes including mean Constant scores of 80. Fracture reduction was associated with outcome. Reduction with coronal and sagittal alignment outside of neutral were associated with radiographic failure and revision surgery. These findings highlight that favorable functional outcomes can be achieved with restoration of the proximal humerus anatomy. Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
Having reliable predictive models of prognosis/the risk of infection in systemic lupus erythematosus (SLE) patients would allow this problem to be addressed on an individual basis to study and implement possible preventive or therapeutic interventions. To identify and analyze all predictive models of prognosis/the risk of infection in patients with SLE that exist in medical literature. A structured search in PubMed, Embase, and LILACS databases was carried out until May 9, 2020. In addition, a search for abstracts in the American Congress of Rheumatology (ACR) and European League Against Rheumatism (EULAR) annual meetings' archives published over the past eight years was also conducted. Studies on developing, validating or updating predictive prognostic models carried out in patients with SLE, in which the outcome to be predicted is some type of infection, that were generated in any clinical context and with any time horizon were included. There were no restrictions on language, date, or status of the publication. To carry out the systematic review, the CHARMS (Critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modelling Studies) guideline recommendations were followed. The PROBAST tool (A Tool to Assess the Risk of Bias and Applicability of Prediction Model Studies) was used to assess the risk of bias and the applicability of each model. We identified four models of infection prognosis in patients with SLE. Mostly, there were very few events per candidate predictor. In addition, to construct the models, an initial selection was made based on univariate analyses with no contraction of the estimated coefficients being carried out. This suggests that the proposed models have a high probability of overfitting and being optimistic. To date, very few prognostic models have been published on the infection of SLE patients. These models are very heterogeneous and are rated as having a high risk of bias and methodological weaknesses. Despite the widespread recognition of the frequency and severity of infections in SLE patients, there is no reliable predictive prognostic model that facilitates the study and implementation of personalized preventive or therapeutic measures.Protocol registration number: PROSPERO CRD42020171638.
In 2015, Staphylococcus argenteus and Staphylococcus schweitzeri were proposed as new species, distinct from Staphylococcus aureus and collectively referred to as the S. aureus complex. However, no clinical reports of these new species exist in Korea. Upon the application of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) for all bloodstream isolates since September 2022, S. argenteus was identified in one patient. Therefore, we aimed to search for new species among the archives of the S. aureus bacteremia cohort and describe their clinical and microbiological characteristics. Among the 691 archived S. aureus isolates between 2012 and 2018, one was identified as S. argenteus via MALDI-TOF MS. Both S. argenteus isolates (one in 2022) were obtained from patients with extensive pneumonia accompanied by bacteremia and both cases had fatal outcomes. They harbored multiple virulence genes (clfA, clfB, fnbpA, sdrC, sdrD, sdrE, bbp, cna, see, seg, sei, blaZ, fnbpB, and map) but did not harbor mecA and pvl. No matched sequence type (ST) was found in either isolate, and both S. argenteus isolates were closely related to ST1594, ST1593, ST1793, and ST1303, which belonged to S. argenteus. S. argenteus accounted for <1% of the S. aureus complex but had clinical characteristics similar to S. aureus. Therefore, clinicians should be aware of these factors to avoid misidentifying these strains as coagulase-negative staphylococci, and appropriate reporting is required to minimize confusion.IMPORTANCEStaphylococcus argenteus, a member of Staphylococcus aureus complex, has been reported as an important pathogen that causes clinically invasive infections in humans similar to S. aureus. Clinical isolates of S. argenteus have been reported across the world, showing a large geographical difference in prevalence and genomic profile. However, there have been no clinical reports regarding this new species in Korea. This is the first report to investigate the clinical and genetic characteristics of S. argenteus identified in patients with bacteremia, and the proportion of S. argenteus bacteremia among S. aureus bacteremia cohort in Korea.
Rheumatic heart disease (RHD) is a key contributor to maternal cardiovascular morbidity and mortality in sub-Saharan Africa (SSA). Though low- and middle-income countries (LMICs), particularly those in SSA, face a greater burden of RHD, existing systematic reviews have not specifically focused on cardiac and obstetric complications among affected women. We aimed to study cardiac and obstetric complications in pregnant and postpartum women with RHD in SSA and to evaluate the rate of valvular interventions in pregnant or postpartum women with severe disease. We performed a systematic search in MEDLINE and online sources for studies of women of childbearing age (15-49 years) with RHD published after 2000 in SSA. Included study types were randomized controlled trials, retrospective and prospective cohort studies, case-control studies, case reports, and case series. Two authors independently extracted data and critically appraised articles. PROSPERO registration number: CRD42024628121. We identified 1,478 unique citations, and nine full-text studies met inclusion criteria. Included studies were case series (7), one cohort study, and one case-control study, including a total of 787 pregnant women with cardiac disease, of whom the majority had RHD. Mitral stenosis and regurgitation were the most common valve lesions. Heart failure and arrhythmia occurred in at least 12.9% and up to 36% of study participants, respectively. Eight studies reported deaths due to cardiac causes (median: six deaths due to cardiac disease; total number of deaths: 56). Preterm labor/delivery was the most reported obstetric event, with incidence ranging from 5.2-35.2%. Few pregnant patients received any valve intervention. Pregnant women with RHD in SSA are at risk for both adverse cardiac and obstetric outcomes in pregnancy, particularly heart failure and preterm labor. Future efforts may include registries focused on pregnant women with RHD and scaling cardiac interventional capacity to benefit pregnant women with RHD in SSA. We performed a systematic search in MEDLINE and online sources to study cardiac and obstetric complications and rates of valvular interventions in pregnant and postpartum women with rheumatic heart disease (RHD) in sub-Saharan Africa (SSA). Two authors independently extracted data and critically appraised articles. Nine full-text studies met inclusion criteria, capturing 787 pregnant women with cardiac disease, mostly RHD. Heart failure and arrhythmia occurred in at least 12.9% and up to 36% of study participants, respectively. Fifty-six deaths were reported from cardiac causes. Preterm labor/delivery was the most reported obstetric event, and few pregnant patients received any valve intervention. We found that women with RHD in SSA are at risk for adverse cardiac and obstetric outcomes in pregnancy, particularly heart failure and preterm labor. Future efforts may include registries focused on pregnant women with RHD and scaling cardiac interventional capacity to benefit pregnant women with RHD in SSA.