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Abstract The field of nanowire (NW) technology represents an exciting and steadily growing research area with applications in ultra-sensitive mass and force sensing. Existing detection methods for NW deflection and oscillation include optical and field emission approaches. However, they are challenging for detecting small diameter NWs because of the heating produced by the laser beam and the impact of the high electric field. Alternatively, the deflection of a NW can be detected indirectly by co-resonantly coupling the NW to a cantilever and measuring it using a scanning probe microscope. Here, we prove experimentally that co-resonantly coupled devices are sensitive to small force derivatives similar to standalone NWs. We detect force derivatives as small as 10−9 N/m with a bandwidth of 1 Hz at room temperature. Furthermore, the measured hybrid vibration modes show clear signatures of avoided crossing. The detection technique presented in this work verifies a major step in boosting NW-based force and mass sensing.

A quantitative magnetic force microscopy technique is presented that maps one magnetic stray-field component and its spatial derivative at the same time. Furthermore, this technique is applied to investigate individual circular magnetic nano-domains in MnNiGa bulk samples providing bubble diameters and the spatial extent in depth.

Background Little literature exists on emergencies within primary care offices.Objectives We aimed to study the occurrence of emergencies and confidence in dealing with them among primary care physicians (PCPs) in Germany.Methods We conducted a cross-sectional study among all PCPs with licences to practice with an own office (n = 915) in a northwestern region in Germany in 2019. Participants were asked to estimate the frequency and type of emergencies that occurred in the last 12 months in their office and about their confidence in managing emergency situations.Results Answers from 375 PCPs could be analysed (response: 41.0%); 95.7% reported at least one emergency in their office within the last 12 months (mean 12.9). PCPs from rural offices reported more emergencies (on average 13.7 vs. 9.6). Acute coronary syndrome, cardiac arrhythmia and dyspnoea were the most common emergencies. A greater likelihood of feeling more confident in managing medical emergencies was found among male physicians, general internists, PCPs additionally qualified as emergency physicians and those with previous training in the emergency department and intensive care unit. In contrast, more general practitioners felt secure treating paediatric emergencies than general internists (highest level of confidence 22.1% vs. 16.3%).Conclusion In Germany, emergencies in primary care offices occur on average once a month and more often in rural than urban areas. While most PCPs are confident in managing medical emergencies, some differences related to the training path became apparent. Ongoing training programmes may be tailored to improve emergency skills.

Some patients experience long-lasting symptoms after coronavirus disease (COVID-19). Here the authors report the clinical and laboratory parameters in patients with post-COVID-19 syndrome from a prospective observational cohort study.

Abstract Background The primary objective was to describe outpatient treatment of epistaxis among different physicians based on a large patient population over a period of 10 years. The secondary objective was to evaluate the value of the practice fee as an instrument of allocation in patients with epistaxis. Methods Anonymized statutory health insurance data (AOK Lower Saxony) of patients with a diagnosis of epistaxis treated between 2007 and 2016 were examined. Demographic data, accompanying diagnoses, medication and involved medical groups (general practitioners (GP), pediatricians, ear, nose and throat (ENT) specialists or other) were analyzed. Furthermore, we assessed whether the use of specialist groups changed after abolition of the practice fee in 2013. Results Epistaxis was responsible for 302,782 cases (160,963 patients). The distribution of cases was slightly in favor of ENT specialists vs. GP (119,170 vs. 110,352). The cases seen by GP and ENT specialists were comparable with regard to age and sex distribution. Hypertension, atrial fibrillation/flutter and an antithrombotic therapy were slightly more common among cases consulting a GP. The GP recorded more co-diagnoses than the ENT. The use of outpatient care and the proportions of the involved physicians scarcely fluctuated during the study period. Overall, 23,118 patients (14.4%) were diagnosed by both, GP and ENT during a relatively short time period. The practice fee remuneration had no impact on the consultation of the physician groups. Conclusion The outpatient treatment of epistaxis constitutes a considerable medical and economic burden in Germany. Strengthening the primary medical sector (GP-centered care) is necessary to reach the goal of initially directing patients to primary care, providing specialists more time for severe cases and reducing the impact on public health balance sheets.

Abstract Background There is wide variation in clinical practice for the early detection of prostate cancer, not least because of the ongoing debate about the benefits of prostate-specific antigen (PSA) testing. In this study, we aimed to assess the approaches, attitudes, and knowledge of general practitioners (GPs) regarding PSA testing in primary care in the Netherlands, particularly regarding recommendations for prostate cancer. Methods Questionnaire surveys were sent to 179 GPs in the north-east of the Netherlands, of which 65 (36%) were completed and returned. We also surveyed 23 GPs attending a postgraduate train-the-trainer day (100%). In addition to demographic data and practice characteristics, the 31-item questionnaire covered the attitudes, clinical practice, adherence to PSA screening recommendations, and knowledge concerning the recommendations for prostate cancer early detection. Statistical analysis was limited to the descriptive level. Results Most GPs (95%; n = 82) stated that they had at least read the Dutch GP guideline, but just half (50%; n = 43) also stated that they knew the content. Almost half (46%; n = 39) stated they would offer detailed counseling before ordering a PSA test to an asymptomatic man requesting a test. Overall, prostate cancer screening was reported to be of minor importance compared to other types of cancer screening. Conclusions Clinical PSA testing in primary care in this region of the Netherlands seems generally to be consistent with the relevant guideline for Dutch GPs that is restrictive to PSA testing. The next step will be to further evaluate the effects of the several PSA testing strategies.

Abstract Background Provision of ambulatory care by medical specialists for nursing home residents (NHR) is discussed to be inadequate in Germany, however with only incomplete evidence on this topic. We wanted to know whether the transition to a nursing home is associated with a general decrease in medical specialist care and therefore compared contact rates before and after institutionalization. Methods Claims data of 18,779 newly admitted NHR in 2013 were followed for the whole year prior to and up to two years after admission. The frequencies of contacts to specialists were assessed and stratified by sex, age, care level, dementia diagnosis and chronic conditions. Multivariate analyses were conducted to identify predictors for contacts to specialists. Results One year after institutionalization the most pronounced decrease was found in contacts with ophthalmologists (38.4% vs. 30.6%) whereas with most other specialties only small changes were found. The only specialty with a large increase were neurologists and psychiatrists (27.2% vs. 43.0%). Differences depending on sex and age were rather small while NHR with dementia or a higher care level had lower contact rates after institutionalization. Before institutionalization most patients were referred to a specialist by a general practitioner (61.7–73.9%) while thereafter this proportion decreased substantially (27.8–58.6%). The strongest predictor for a specialist contact after admission to a nursing home was a contact to a specialist before (OR 8.8, CI 7.96–9.72 for contacts to neurologists or psychiatrists). A higher nursing care level and a higher age were also predictors for specialist contacts. Conclusions Relevant decreases of ambulatory specialist care utilization after institutionalization are restricted to ophthalmologists. NHR of higher age and higher nursing care level had a lower chance for a specialist contact. The assessment of the adequacy of the provided care after institutionalization remains inconclusive due to little investigated but assumable changes in care needs of NHR. The decreased coordination of care by general practitioners after institutionalization conflicts with health policy goals.

Abstract Background Due to the increasing number of non-urgent visits to emergency departments, it is becoming increasingly important to also investigate emergency care in out-of-hours (OOH) primary care. The aim of this study was to provide an insight into the care structures of an OOH primary care centre, to evaluate the reasons for encounter (RFE) and to assess the urgency of the treatment from the physicians´ point of view. Methods In the summer of 2017, we conducted a cross-sectional study over four weeks in the OOH primary care centre of Oldenburg, a city in Lower Saxony with about 160,000 inhabitants. We collected socio-demographic data, RFE and the duration of the complaints. The International Classification for Primary Care 2nd Edition (ICPC-2) was used to categorize symptoms. The attending physicians supplemented information on further treatment (including hospitalization) and the urgency of consultation in the OOH primary care centre. Results A total of 892 of the 1098 OOH patients which were visiting the OOH primary care centre took part in the study (participation: 81.2%). More than half of the patients were between 18 and 39 years old. A quarter of all RFE named by study participants were in the ICPC-2 category “skin”. More than 60% of patients had the symptoms for more than two days before visiting the OOH primary care centre. In 34.5% of all cases no medication was prescribed and one in six patients received further diagnostic tests such as urinalysis and blood tests (15.8%). From the physicians’ point of view, 26.3% of all study participants could have been treated by the family doctor during the regular consultation hours. Conclusion The study shows that in the OOH primary care centre about a quarter of all patients could have waited until regular consultation hours. Mostly young patients used the easily accessible and free care in the OOH primary care centre. Further studies are necessary to better understand the individual reasons of patients to use the OOH primary care centre.

BackgroundIn 2020, around 1.4 million new prostate cancer (PCa) cases were recorded worldwide. Early detection of PCa by prostate-specific antigen (PSA) screening remains debated, leading to different specialist-specific recommendations in PCa guidelines. This study aimed to assess attitudes toward and use of PSA testing among urologists in Germany and general practitioners (GPs) in Lower Saxony (Germany).MethodsA nationwide questionnaire was sent to urologists via the mailing lists of the Professional Association of German Urologists and the German Urological Society. A version of the questionnaire for GPs was sent to email addresses via the Association of Statutory Health Insurance Physicians Lower Saxony. The online questionnaires covered use of PSA testing, information communication, handling of test results, and handling of/knowledge about national and international guidelines and recommendations on early detection of PCa. Statistical analysis was performed at a descriptive level.ResultsIn total, 432 of 6,568 urologists (6.6%) and 96 of 1,579 GPs (6.1%) participated in this survey. Urologists and GPs differed in their attitudes and approaches toward PSA testing. Most urologists (86.8%, n=375) judged the test as “very meaningful” or “meaningful”, compared with 52.1% (n=50) of GPs. Almost two-thirds of the urologists (64.4%, n=278) viewed the PCa mortality reduction by PSA testing as proven, compared with one-fifth of GPs (20.8%, n=20). Almost 80% of male urologists (79.9%, n=291) indicated that they would undergo a PSA test in the future (again), compared with 55.1% of male GPs (n=38). In addition, 56.3% (n=243) of urologists stated that “considerably more than half” or “almost all” men aged 45 years or older received a PSA test, compared with 19.8% (n=19) of GPs.ConclusionsUrologists are more convinced about the PSA test than GPs. PSA testing is therefore used more often in urological settings, although the preselected patient population must be considered. In accordance with specialist-specific recommendations, GPs show a more reserved approach toward PSA testing. Instead of focusing on different attitudes and recommendations on PSA testing, the exchange between specialist groups should be improved to achieve a consistent approach to PSA testing.

Abstract Background Antibiotic resistance is a worldwide problem and inappropriate prescriptions are a cause. Especially among children, prescriptions tend to be high. It is unclear how they differ in bordering regions. This study therefore examined the antibiotic prescription prevalence among children in primary care between northern Netherlands and north-west of Germany. Methods Two datasets were used: The Dutch (IADB) comprises representative data of pharmacists in North Netherland and the German (BARMER GEK) includes nationwide health insurance data. Both were filtered using postal codes to define two comparable bordering regions with patients under 18 years for 2010. Results The proportion of primary care patients receiving at least one antibiotic was lower in northern Netherlands (29.8 %; 95 % confidence interval [95 % CI]: 29.3–30.3), compared to north-west Germany (38.9 %; 95 % CI: 38.2–39.6). Within the respective countries, there were variations ranging from 27.0 to 44.1 % between different areas. Most profound was the difference in second-generation cephalosporins: for German children 25 % of the total prescriptions, while for Dutch children it was less than 0.1 %. Conclusions This study is the first to compare outpatient antibiotic prescriptions among children in primary care practices in bordering regions of two countries. Large differences were seen within and between the countries, with overall higher prescription prevalence in Germany. Considering increasing cross-border healthcare, these comparisons are highly valuable and help act upon antibiotic resistance in the first line of care in an international approach.

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Background. Data on the economic impact of Lyme borreliosis (LB) on European health care systems is scarce. This project focused on the epidemiology and costs for laboratory testing in LB patients in Germany. Materials and Methods. We performed a sentinel analysis of epidemiological and medicoeconomic data for 2007 and 2008. Data was provided by a German statutory health insurance (DAK) company covering approx. 6.04 million members. In addition, the quality of diagnostic testing for LB in Germany was studied. Results. In 2007 and 2008, the incident diagnosis LB was coded on average for 15,742 out of 6.04 million insured members (0.26%). 20,986 EIAs and 12,558 immunoblots were ordered annually for these patients. For all insured members in the outpatient sector, a total of 174,820 EIAs and 52,280 immunoblots were reimbursed annually to health care providers (cost: 2,600,850€). For Germany, the overall expected cost is estimated at 51,215,105€. However, proficiency testing data questioned test quality and standardization of diagnostic assays used. Conclusion. Findings from this study suggest ongoing issues related to care for LB and may help to improve future LB disease management.