OBJECTIVES: The development of External Quality Assessment Schemes (EQAS) for clinical flow cytometry (FCM) is challenging in the context of rare (immunological) diseases. Here, we introduce a novel EQAS monitoring the primary immunodeficiency Orientation Tube (PIDOT), developed by EuroFlow, in both a 'wet' and 'dry' format. This EQAS provides feedback on the quality of individual laboratories (i.e., accuracy, reproducibility and result interpretation), while eliminating the need for sample distribution. METHODS: In the wet format, marker staining intensities (MedFIs) within landmark cell populations in PIDOT analysis performed on locally collected healthy control (HC) samples, were compared to EQAS targets. In the dry format, participants analyzed centrally distributed PIDOT flow cytometry data (n=10). RESULTS: We report the results of six EQAS rounds across 20 laboratories in 11 countries. The wet format (212 HC samples) demonstrated consistent technical performance among laboratories (median %rCV on MedFIs=34.5 %; average failure rate 17.3 %) and showed improvement upon repeated participation. The dry format demonstrated effective proficiency of participants in cell count enumeration (range %rCVs 3.1-7.1 % for the major lymphoid subsets), and in identifying lymphoid abnormalities (79.3 % alignment with reference). CONCLUSIONS: The PIDOT-EQAS allows laboratories, adhering to the standardized EuroFlow approach, to monitor interlaboratory variations without the need for sample distribution, and provides them educational support to recognize rare clinically relevant immunophenotypic patterns of primary immunodeficiencies (PID). This EQAS contributes to quality improvement of PID diagnostics and can serve as an example for future flow cytometry EQAS in the context of rare diseases.
Brucellosis is one of the most important zoonoses worldwide, primarily affecting livestock but also posing a serious threat to public health. The major Brucella species are known to cause a feverish disease in humans with various clinical signs. These classical Brucella species are (re-)emerging, but also novel strains and species, some of them transmitted from rodents, can be associated with human infections. As a result of our review on rodent-borne brucellosis, we emphasise the need for more comprehensive surveillance of Brucella and especially Brucella microti in rodent populations and call for further research targeting the ecological persistence of rodent-associated Brucella species in the environment, their epizootic role in wild rodents and their virulence and pathogenicity for wildlife.
- MeSH
- Brucella * isolation & purification MeSH
- Brucellosis * epidemiology veterinary microbiology transmission MeSH
- Rodentia * microbiology MeSH
- Humans MeSH
- Public Health * MeSH
- Zoonoses * MeSH
- Animals MeSH
- Check Tag
- Humans MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Review MeSH
BACKGROUND AND OBJECTIVE: Biparametric magnetic resonance imaging (bpMRI), excluding dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI), is a potential replacement for multiparametric MRI (mpMRI) in diagnosing clinically significant prostate cancer (csPCa). An extensive international multireader multicase observer study was conducted to assess the noninferiority of bpMRI to mpMRI in csPCa diagnosis. METHODS: An observer study was conducted with 400 mpMRI examinations from four European centers, excluding examinations with prior prostate treatment or csPCa (Gleason grade [GG] ≥2) findings. Readers assessed bpMRI and mpMRI sequentially, assigning lesion-specific Prostate Imaging Reporting and Data System (PI-RADS) scores (3-5) and a patient-level suspicion score (0-100). The noninferiority of patient-level bpMRI versus mpMRI csPCa diagnosis was evaluated using the area under the receiver operating curve (AUROC) alongside the sensitivity and specificity at PI-RADS ≥3 with a 5% margin. The secondary outcomes included insignificant prostate cancer (GG1) diagnosis, diagnostic evaluations at alternative risk thresholds, decision curve analyses (DCAs), and subgroup analyses considering reader expertise. Histopathology and ≥3 yr of follow-up were used for the reference standard. KEY FINDINGS AND LIMITATIONS: Sixty-two readers (45 centers and 20 countries) participated. The prevalence of csPCa was 33% (133/400); bpMRI and mpMRI showed similar AUROC values of 0.853 (95% confidence interval [CI], 0.819-0.887) and 0.859 (95% CI, 0.826-0.893), respectively, with a noninferior difference of -0.6% (95% CI, -1.2% to 0.1%, p < 0.001). At PI-RADS ≥3, bpMRI and mpMRI had sensitivities of 88.6% (95% CI, 84.8-92.3%) and 89.4% (95% CI, 85.8-93.1%), respectively, with a noninferior difference of -0.9% (95% CI, -1.7% to 0.0%, p < 0.001), and specificities of 58.6% (95% CI, 52.3-63.1%) and 57.7% (95% CI, 52.3-63.1%), respectively, with a noninferior difference of 0.9% (95% CI, 0.0-1.8%, p < 0.001). At alternative risk thresholds, mpMRI increased sensitivity at the expense of reduced specificity. DCA demonstrated the highest net benefit for an mpMRI pathway in cancer-averse scenarios, whereas a bpMRI pathway showed greater benefit for biopsy-averse scenarios. A subgroup analysis indicated limited additional benefit of DCE MRI for nonexperts. Limitations included that biopsies were conducted based on mpMRI imaging, and reading was performed in a sequential order. CONCLUSIONS AND CLINICAL IMPLICATIONS: It has been found that bpMRI is noninferior to mpMRI in csPCa diagnosis at AUROC, along with the sensitivity and specificity at PI-RADS ≥3, showing its value in individuals without prior csPCa findings and prostate treatment. Additional randomized prospective studies are required to investigate the generalizability of outcomes.
- MeSH
- Middle Aged MeSH
- Humans MeSH
- Magnetic Resonance Imaging MeSH
- Multiparametric Magnetic Resonance Imaging * MeSH
- Prostatic Neoplasms * diagnostic imaging pathology MeSH
- Observer Variation MeSH
- Aged MeSH
- Neoplasm Grading MeSH
- Check Tag
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Publication type
- Journal Article MeSH
- Multicenter Study MeSH
- Comparative Study MeSH
- Geographicals
- Europe MeSH
Mitochondria are vital organelles with their own DNA (mtDNA). mtDNA is circular and composed of heavy and light chains that are structurally more accessible than nuclear DNA (nDNA). While nDNA is typically diploid, the number of mtDNA copies per cell is higher and varies considerably during development and between tissues. Compared with nDNA, mtDNA is more prone to damage that is positively linked to many diseases, including cancer. Similar to nDNA, mtDNA undergoes repair processes, although these mechanisms are less well understood. In this review, we discuss the various forms of mtDNA damage and repair and their association with cancer initiation and progression. We also propose horizontal mitochondrial transfer as a novel mechanism for replacing damaged mtDNA.
- MeSH
- Humans MeSH
- DNA, Mitochondrial * genetics MeSH
- Mitochondria * genetics metabolism MeSH
- Neoplasms * genetics pathology MeSH
- DNA Repair * MeSH
- DNA Damage * genetics MeSH
- Animals MeSH
- Check Tag
- Humans MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Review MeSH
While there is substantial research on what people want in their romantic and sexual partners, much of this work focuses on WEIRD, youthful samples, fails to consider the role of undesirable characteristics (i.e., things people do not want in partners) at all, or in conjunction with desirable characteristics (i.e., things people do want in partners), and may be overly reliant on psychometric approaches to pivotal variables in mating psychology like mate value and sociosexuality. In a nationally representative (online) sample of 2280 people from Czechia (aged between 18 and 50 years old), we examined linear and quadratic age, education, and self-perceived mate value (desirability) effects on the desired levels in mate choice of eight undesirable and seven desirable characteristics in men and women in relation to ostensible metrics of mate value. Self-perceived mate value alone explained little variance (men 1%, women 2%), while all mate value and mating strategy indicators together explained little variance of mate preferences and aversions (men 3%, women 5%). Desirable characteristics were better explained by mate value than undesirable ones. Our results are in line with evolutionary predictions suggesting that women are more demanding. Also, more qualities to offer correlate with more expectations in a partner.
- MeSH
- Adult MeSH
- Interpersonal Relations MeSH
- Middle Aged MeSH
- Humans MeSH
- Marriage psychology MeSH
- Adolescent MeSH
- Young Adult MeSH
- Surveys and Questionnaires MeSH
- Self Concept MeSH
- Sexual Behavior psychology MeSH
- Sexual Partners * psychology MeSH
- Choice Behavior MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Adolescent MeSH
- Young Adult MeSH
- Male MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Czech Republic MeSH
BACKGROUND: Aveir DR (Abbott, Abbott Park, IL) is a dual-chamber leadless pacemaker (LP) system with distinct atrial and ventricular LPs (ALP, VLP) that communicate wirelessly to deliver atrioventricular synchronous pacing. Success rates of these implant-to-implant (i2i) transmissions have not been systematically evaluated. OBJECTIVE: This study aims to evaluate chronic i2i success rates in a clinical setting. METHODS: Patients meeting standard dual-chamber pacing indications were enrolled and implanted with dual-chamber LP systems as part of a prospective international clinical trial (Aveir DR i2i Study). The percent of successful i2i transmissions from ALP-to-VLP (A-to-V) and VLP-to-ALP (V-to-A) were interrogated from LPs in de novo patients using the device programmer at implant, discharge, and at 1, 3, and 6 months postimplant (1M, 3M, 6M). RESULTS: A total of 399 patients completed device implant and i2i diagnostic interrogation (62% male; age 69 years; 65% sinus node dysfunction, 32% atrioventricular [AV] block). Median A-to-V and V-to-A i2i success rates exceeded 90% of beats at all time-points from implant to 6M. The minority of patients with A-to-V or V-to-A i2i success in <70% of beats at implant (A-to-V: 19% of patients, V-to-A: 31% of patients) showed roughly 40% improvement by 1M, with this minority dropping to roughly 5% of patients by 6M. Improvement in i2i communication success may be attributed to reprogramming of i2i setting levels, natural changes in dominant posture, and device stabilization. CONCLUSION: Wireless implant-to-implant communication in the new dual-chamber leadless pacemaker system demonstrated successful transmissions in >90% of beats throughout the 6-month evaluation period. Communication success improved significantly over time postimplant for specific subgroups. CLINICAL TRIAL REGISTRATION: Aveir DR i2i Study, ClinicalTrials.gov ID NCT05252702.
- MeSH
- Wireless Technology MeSH
- Equipment Design * MeSH
- Cardiac Pacing, Artificial methods MeSH
- Pacemaker, Artificial * MeSH
- Middle Aged MeSH
- Humans MeSH
- Follow-Up Studies MeSH
- Prospective Studies MeSH
- Aged MeSH
- Check Tag
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Multicenter Study MeSH
OBJECTIVES: To develop a gadolinium-free MRI-based diagnosis prediction decision tree (DPDT) for adult-type diffuse gliomas and to assess the added value of gadolinium-based contrast agent (GBCA) enhanced images. MATERIALS AND METHODS: This study included preoperative grade 2-4 adult-type diffuse gliomas (World Health Organization 2021) scanned between 2010 and 2021. The DPDT, incorporating eleven GBCA-free MRI features, was developed using 18% of the dataset based on consensus readings. Diagnosis predictions involved grade (grade 2 vs. grade 3/4) and molecular status (isocitrate dehydrogenase (IDH) and 1p/19q). GBCA-free diagnosis was predicted using DPDT, while GBCA-enhanced diagnosis included post-contrast images. The accuracy of these predictions was assessed by three raters with varying experience levels in neuroradiology using the test dataset. Agreement analyses were applied to evaluate the prediction performance/reproducibility. RESULTS: The test dataset included 303 patients (age (SD): 56.7 (14.2) years, female/male: 114/189, low-grade/high-grade: 54/249, IDH-mutant/wildtype: 82/221, 1p/19q-codeleted/intact: 34/269). Per-rater GBCA-free predictions achieved ≥ 0.85 (95%-CI: 0.80-0.88) accuracy for grade and ≥ 0.75 (95%-CI: 0.70-0.80) for molecular status, while GBCA-enhanced predictions reached ≥ 0.87 (95%-CI: 0.82-0.90) and ≥ 0.77 (95%-CI: 0.71-0.81), respectively. No accuracy difference was observed between GBCA-free and GBCA-enhanced predictions. Group inter-rater agreement was moderate for GBCA-free (0.56 (95%-CI: 0.46-0.66)) and substantial for GBCA-enhanced grade prediction (0.68 (95%-CI: 0.58-0.78), p = 0.008), while substantial for both GBCA-free (0.75 (95%-CI: 0.69-0.80) and GBCA-enhanced (0.77 (95%-CI: 0.71-0.82), p = 0.51) molecular status predictions. CONCLUSION: The proposed GBCA-free diagnosis prediction decision tree performed well, with GBCA-enhanced images adding little to the preoperative diagnostic accuracy of adult-type diffuse gliomas. KEY POINTS: Question Given health and environmental concerns, is there a gadolinium-free imaging protocol to preoperatively evaluate gliomas comparable to the gadolinium-enhanced standard practice? Findings The proposed gadolinium-free diagnosis prediction decision tree for adult-type diffuse gliomas performed well, and gadolinium-enhanced MRI demonstrated only limited improvement in diagnostic accuracy. Clinical relevance Even inexperienced raters effectively classified adult-type diffuse gliomas using the gadolinium-free diagnosis prediction decision tree, which, until further validation, can be used alongside gadolinium-enhanced images to respect standard practice, despite this study showing that gadolinium-enhanced images hardly improved diagnostic accuracy.
- MeSH
- Adult MeSH
- Gadolinium MeSH
- Glioma * diagnostic imaging MeSH
- Contrast Media * MeSH
- Middle Aged MeSH
- Humans MeSH
- Magnetic Resonance Imaging * methods MeSH
- Brain Neoplasms * diagnostic imaging MeSH
- Predictive Value of Tests MeSH
- Reproducibility of Results MeSH
- Decision Trees * MeSH
- Aged MeSH
- Neoplasm Grading * MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
BACKGROUND: Suicides are a major public health problem with serious consequences for societies. AIM: To compare epidemiological patterns and trends of suicides in the Czech Republic, Slovakia, Hungary, and Poland in 1990-2019, and analyze them in the European and global context. METHODS: A trend analysis was conducted in Czech Republic, Slovakia, Hungary, Poland, in Western Europe and on global level for 1990-2019. All data were obtained from the Global Burden of Diseases study 2019. Numbers and age-standardized rates of deaths and Years of Life Lost (YLL) due to suicides were analyzed, stratified by sex and age (0-14 years old, 15-49 years old, 50-69 years old, 70+ years). RESULTS: In 2019, 759,028 suicides occurred globally, 17,408 (2.3%) in Central Europe. The proportion of males was substantially larger, compared to the global and Western European levels (e.g., 82 vs. 69 and 75%, respectively). The highest rates of suicide were in Hungary (19.7 per 100,000), lowest in Slovakia (12.8); the rate in Central Europe was higher than the global rate (15.2 vs. 9.8), and the rate in Western Europe (11.4). A steady decline of rates was observed in all countries, particularly in Hungary. In Czech Republic we found an increasing relative importance of suicides among people 70 years and older. CONCLUSIONS: Death rates due to suicides have been declining in the analyzed countries, but some characteristics and trends when compared to global and regional estimates, such as substantially higher proportion of male suicides or high death rates among the elderly warrant specifically tailored preventative action coordinated by governments with community involvement.
- MeSH
- Child MeSH
- Adult MeSH
- Infant MeSH
- Middle Aged MeSH
- Humans MeSH
- Adolescent MeSH
- Young Adult MeSH
- Infant, Newborn MeSH
- Child, Preschool MeSH
- Suicide * statistics & numerical data trends MeSH
- Aged MeSH
- Check Tag
- Child MeSH
- Adult MeSH
- Infant MeSH
- Middle Aged MeSH
- Humans MeSH
- Adolescent MeSH
- Young Adult MeSH
- Male MeSH
- Infant, Newborn MeSH
- Child, Preschool MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Czech Republic MeSH
- Europe MeSH
- Hungary MeSH
- Poland MeSH
- Slovakia MeSH
INTRODUCTION: The objective of this study was to assess the impact of the Enhanced Recovery After Surgery (ERAS) programme implementation on treatment costs at a university-type centre, using the DRG scheme. MATERIALS AND METHODS: Retrospective analysis of patients' data in a group of 604 individuals enroled in the study. We evaluated three groups of patients according to the ERAS clinical protocol (CP): (1) CP oncogynaecology, (2) CP simple hysterectomy, (3) CP laparoscopy. The study aimed to evaluate the impact on the length of stay (LOS), savings in bed-days, and the reduction in direct treatment costs. Three parameters-antibiotic consumption, blood derivative consumption and laboratory test costs-were chosen to compare direct treatment costs. The statistical significance of the difference in the observed parameters was tested by a two-sample unpaired t test with unequal variances at the 0.05 significance level. RESULTS: We analysed data from 604 patients. In all three groups, the length of stay (LOS) was significantly reduced. The most significant reduction was observed in the CP oncogynaecology group, where the LOS was reduced from 11.1 days to 6.8 days (2022) and 7.6 days (2023) compared to 2019 (p < 0.05). Furthermore, there was a notable reduction in inpatient bed-days, which resulted in the capacity being made available to admit additional patients. A statistically significant reduction in direct costs was observed in the group of CP hysterectomy (antibiotic use) and in the CP laparoscopy (laboratory test costs). CONCLUSIONS: The implementation of the ERAS principles resulted in a number of significant positive economic impacts-reduction in the LOS and a corresponding increase in bed capacity for new patients. Additionally, direct treatment costs, including those related to antibiotic use or laboratory testing were reduced. The Czech Republic's acute healthcare system, like the majority of European healthcare systems, is financed by the DRG system. This flat-rate payment per patient encourages hospital management to seek cost-reduction strategies. The results of our study indicate that fast-track protocols represent a potential viable approach to reducing the cost of treatment while simultaneously meeting the recommendations of evidence-based medicine.
- MeSH
- Length of Stay statistics & numerical data economics MeSH
- Adult MeSH
- Gynecologic Surgical Procedures * economics MeSH
- Hysterectomy economics MeSH
- Diagnosis-Related Groups MeSH
- Laparoscopy economics MeSH
- Middle Aged MeSH
- Humans MeSH
- Health Care Costs * statistics & numerical data MeSH
- Retrospective Studies MeSH
- Aged MeSH
- Enhanced Recovery After Surgery * MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
RESPONSE/RECOMMENDATION: The use of surgical drains in routine primary total knee and total hip arthroplasty is not recommended. LEVEL OF EVIDENCE: High. EXPERT VOTING: Agree 83.52%, Disagree 12.91%, Abstain 3.59%.
- MeSH
- Drainage * instrumentation MeSH
- Humans MeSH
- Arthroplasty, Replacement, Hip * MeSH
- Arthroplasty, Replacement, Knee * MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Letter MeSH
- Review MeSH