Publications by authors named "Diel R"

Bronchiectasis is an etiologically heterogeneous, chronic, and often progressive respiratory disease characterized by irreversible bronchial dilation. It is frequently associated with significant symptom burden, multiple complications, and reduced quality of life. For several years, there has been a marked global increase in the prevalence of bronchiectasis, which is linked to a substantial economic burden on healthcare systems.

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Background: Only 4076 new cases of tuberculosis (TB) were reported in Germany in 2022; of those 184 were multidrug-resistant TB (MDR-/RR-TB).

Methods: Based on the current therapy guidelines of the German Central Committee against Tuberculosis and most recent renumeration data of the Statutory Health Insurances (SHI), this study estimates the mean in- and outpatient costs per adult infectious pulmonary non-MDR-TB patient, together with costs arising from Rifampicin (RIF)-based short-course options of tuberculosis preventive treatment (TPT) of their close contacts.

Results: From the insurance perspective, the mean inpatient cost (rounded) per adult case was 6138 EUR (SD±2810 EUR) for standard therapy; the cost of primary outpatient treatment only amounted to 1930 EUR and the cost of outpatient treatment post-hospital to 1093 EUR.

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Several human-adapted Mycobacterium tuberculosis complex (Mtbc) lineages exhibit a restricted geographical distribution globally. These lineages are hypothesized to transmit more effectively among sympatric hosts, that is, those that share the same geographical area, though this is yet to be confirmed while controlling for exposure, social networks and disease risk after exposure. Using pathogen genomic and contact tracing data from 2,279 tuberculosis cases linked to 12,749 contacts from three low-incidence cities, we show that geographically restricted Mtbc lineages were less transmissible than lineages that have a widespread global distribution.

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Background: Mounting evidence supports an association between the use of personal protective equipment (PPE) and the risk of infection from the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in dental healthcare workers (DCW). However, the prevalence and incidence of SARS-CoV-2 infections in the setting of dental care remains poorly characterized.

Methods: A systematic review and meta-analysis of studies published prior to Mai 2023 providing epidemiological data for the occurrence of SARS-CoV-2 in DCW was performed.

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Objectives: Many orbital fracture patients are transferred to tertiary care centers for immediate ophthalmology consultation, though few require urgent ophthalmic evaluation or intervention. This overutilizes limited resources and overburdens patients and the health care system with travel and emergency department (ED) expenses. A simple, easy-to-use, clinical decision-making tool is needed to aid local EDs and triage services in effectively identifying orbital fracture patients who need urgent ophthalmic evaluation.

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Six lineages of Mycobacterium tuberculosis sensu stricto (which excludes M. africanum) are described. Single-country or small observational data suggest differences in clinical phenotype between lineages.

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Background: Children <15 years are at elevated risk of becoming infected with mplex (Mtbc).

Objective: To assess the magnitude of Mtbc transmission by healthcare workers (HCW) to children.

Methods: Medline, Google Scholar and Cochrane library were searched to select primary studies in which HCW was the presumed index case and exposed infants and children aged below 15 years were screened for latent TB infection (LTBI).

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The aim of contact tracing for tuberculosis is in addition to active case finding the detection of chains of infection and the prevention of the further spread of the disease. In this context, a careful selection of contact persons is necessary, depending on the type and duration of contact, to identify persons who are recently infected and therefore to increase the benefit of a preventive therapy and to avoid unnecessary testing of persons who are not at risk of infection. Since the last update of the recommendations on contact tracing, data on the use of interferon-y release assays (IGRAs) in children has been improved markedly.

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Background: Chronic lung allograft dysfunction (CLAD) is the leading cause of death after the first postoperative years of lung transplantation (LTx).

Objective: To assess the number of disability-adjusted life years (DALYs) per patient with severe CLAD.

Methods: The clinical and demographic data of patients who received their lung transplantation between 2010 and 2020 in the Hanover Medical School (Germany) were evaluated.

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Preventing the spread of the disease is an essential goal in the care and treatment of tuberculosis. In addition to early diagnosis and effective therapies, isolation of infectious patients and adequate hygiene measures are of particular importance for infection prevention. The present recommendations replace the previous recommendations "tuberculosis infection control" from 2012 and take into account the current national and international recommendations and as well as new scientific findings.

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The aim of contact tracing for tuberculosis is in addition to active case finding the detection of chains of infection and the prevention of the further spread of the disease. In this context, a careful selection of contact persons is necessary, depending on the type and duration of contact, to identify persons who are recently infected and therefore to increase the benefit of a preventive therapy and to avoid unnecessary testing of persons who are not at risk of infection. Since the last update of the recommendations on contact tracing, data on the use of interferon-y release assays (IGRAs) in children has been improved markedly.

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Background: Healthcare workers (HCWs) are at increased risk of becoming infected with complex (Mtbc).

Objective: To assess the magnitude of Mtbc transmission by children under the age of 15 years to HCW.

Methods: Medline, Google Scholar and Cochrane library were searched to select primary studies in which a child was the presumed index case and exposed HCW were screened for latent TB infection (LTBI).

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Eight lineages of are described. Single-country or small observational data suggest differences in clinical phenotype between lineages. We present strain lineage and clinical phenotype data from 12,246 patients from 3 low-incidence and 5 high-incidence countries.

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Background: The current Omicron COVID-19 pandemic has significant morbidity worldwide.

Objective: Assess the cost-benefit relation of implementing PCR point-of-care (POCT) COVID-19 testing in the emergency rooms (ERs) of German hospitals and in the case of inpatient admission due to other acute illnesses.

Methods: A deterministic decision-analytic model simulated the incremental costs of using the Savanna Multiplex RT-PCR test compared to using clinical judgement alone to confirm or exclude COVID-19 in adult patients in German ERs prior to hospitalization or just prior to discharge.

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Background: Data from a prospective molecular-epidemiologic study (1997-2021) in Hamburg, Germany, were evaluated to assess the transmission risk of Mycobacterium tuberculosis complex (Mtbc) by children <15 years in a low-incidence setting.

Methods: Isolates of Mtbc were genotyped whole genome sequencing, applying a core genome multilocus sequence typing scheme. Close contacts of culture-confirmed children were examined for latent Mtbc infections (LTBI) with particular focus on IGRA testing.

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The widespread paradigm that younger children usually do not transmit complex (Mtbc) to their contacts has not yet been proven by genotypically confirmed transmissions. Therefore, we undertook a systematic review of molecular-epidemiological studies to investigate documented source and secondary TB (tuberculosis) cases among children. We searched the literature published before August 2022 using , , and databases.

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Article Synopsis
  • Scientists compared two tests (TST and IGRA) to see which one is better at predicting active tuberculosis (TB) disease.
  • They looked at data from 13 studies with over 32,000 people to find out which test was more reliable.
  • The IGRA test was found to be better in certain countries, especially where fewer people have TB.
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Transmission-driven multi-/extensively drug resistant (M/XDR) tuberculosis (TB) is the largest single contributor to human mortality due to antimicrobial resistance. A few major clades of the Mycobacterium tuberculosis complex belonging to lineage 2, responsible for high prevalence of MDR-TB in Eurasia, show outstanding transnational distributions. Here, we determined factors underlying the emergence and epidemic spread of the W148 clade by genome sequencing and Bayesian demogenetic analyses of 720 isolates from 23 countries.

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Introduction: Management of patients with lung disease caused by non-tuberculous mycobacteria (NTM-LD) in Germany is currently characterized by delayed diagnosis, frequently poor prognosis and high follow-up costs. Mainly due to an increased number of hospitalizations, the SHI-relevant direct costs (€ 9,093.20 patient/year) are higher compared to typical underlying diseases (e.

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Article Synopsis
  • The study focuses on complex Mycobacterium tuberculosis Lineage 3 (L3) strains, which are prevalent in regions with high tuberculosis rates, analyzing 2682 strains from 38 countries.
  • Researchers used advanced techniques like MIRU-VNTR genotyping and whole-genome sequencing to explore the genetic diversity and population structure of L3 strains across five continents.
  • Findings indicate that L3 strains originated in Southern Asia and later spread to North-East and East Africa, offering insights that could aid in the development of new treatments and vaccines for tuberculosis.
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"Ancestral" complex (MTBC) strains of Lineage 1 (L1, East African Indian) are a prominent tuberculosis (TB) cause in countries around the Indian Ocean. However, the pathobiology of L1 strains is insufficiently characterized. Here, we used whole genome sequencing (WGS) of 312 L1 strains from 43 countries to perform a characterization of the global L1 population structure and correlate this to the analysis of the synthesis of phenolic glycolipids (PGL) - known MTBC polyketide-derived virulence factors.

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Patients with bronchiectasis feature considerable symptom burden and reduced health-related quality of life (QOL). We provide the psychometric validation of the German translation of the disease-specific Quality of Life Questionnaire-Bronchiectasis (QOL-B), version 3.1, using baseline data of adults consecutively enrolled into the prospective German bronchiectasis registry PROGNOSIS.

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