Challenges in prospective observational studies evaluating pressure ulcer costs: how to price the items correctly.

OBJECTIVE: Pressure ulcers (PUs) are a significant healthcare problem with a negative impact on patients' quality of life and incurring substantial healthcare expenses. Our study aimed to analyse the costs of treating PUs in hospitalised patients in the Czech Republic, in the context of current treatment procedures and price levels, and to pilot-test the detailed methodology developed. METHOD: A prospective, observational, non-interventional study was conducted at the Clinic of Anesthesiology, Resuscitation and Intensive Medicine, the Internal Medicine Department and the Surgical Department of the University Hospital Ostrava. The study included all hospitalised patients with a PU from March-May 2021. Data were collected using the hospital information system. A bottom-up, person-based approach to cost analysis was used, based on a comprehensive cost structure using accurate patient-specific consumption records. RESULTS: The length of hospitalisations ranged from 1-31 (mean: 12.7) days. The average cost of PU treatment per hospitalisation was calculated at €1579. The average daily cost of PU treatment was €179, including antibiotic therapy (ATB) and €112 without ATB. Most of the costs were associated with ATB (38.6%) and caregivers' time (35.9%). Based on the results, a predictive model was developed to estimate the cost of treating a hospitalised patient with a PU, which could be used in future research to assess the costs of treating these patients. CONCLUSION: We have faced many challenges in the methodology of preparation of cost analysis (e.g., how to count amorphous topical agents and sprays, how to properly identify PUs, how to price the positioning aids and mattresses, and how to relate the ATB treatment to the PU). This analysis provides important input for developing a comprehensive and more accurate methodology for monitoring PU costs in hospitalised patients, applicable in clinical practice for inpatient healthcare providers.

The Accuracy of Commercially Available Fitness Trackers in Patients after Stroke.

Background: Fitness trackers could represent an easy-to-use and cheap tool for continuous tracking of physical activity of stroke survivors during the period of their recovery at home. The aim of the study was to examine the accuracy of the Fitbit activity tracker in locomotor activity monitoring of stroke survivors with respect to gait disorders, walking speed, walking aid, and placement of the tracker on body. Methods: Twenty-four ambulatory stroke survivors (15 men and 9 women) with locomotion/gait disorder were involved in the study. Patients underwent two walking tests with the Fitbit Alta HR trackers attached on 5 different places on body. The accuracy of the trackers has been analyzed on 3 groups of patients-those walking without any walking aid, those using a single-point stick and those using a rolling walker. Results: For no-aid patients, the most accurate place was the waist. Patients with a single-point stick revealed the smallest deviations for a tracker attached to a healthy lower limb, and patients with a rolling walker revealed the smallest deviations for a tracker attached on the paretic lower limb. Conclusions: An accuracy comparable with the healthy population can be reached for all of the three groups of patients, while fulfilling the conditions for minimum speed of 2 km/h and optimal placement of the trackers with respect to a walking aid and aspect to impairment.

How the COVID-19 pandemic influences the prevalence of pressure injuries in the Czech Republic: A nationwide analysis of a health registry in 2020.

BACKGROUND: COVID-19 significantly influences the overall patient status and, in severe symptomatology, the ability to move and the low oxygenation of the tissue for the ventilated patient in Intensive Care Units (ICU). There is a higher risk for Pressure injuries (PIs) development. OBJECTIVES: The nationwide analyses of the National health register aimed to compare the prevalence of PIs reported before the pandemic COVID-19 started and during the pandemic in 2020. METHOD: A retrospective, nationwide cross-sectional analysis of data regarding the STROBE checklist collected by the National Health Information System (NHIS), focusing on the PIs reporting based on the International Classification of Diseases (ICD-10) diagnoses L89.0-L89.9 for PIs in 2020. The data from the pandemic period of COVID-19 in 2020 were compared to the prevalence of PI cases in the period 2010-2019 in the Czech Republic in all hospitalized patients. RESULTS: The total number of admissions for L89 in 2020 was 14,441, of which 1509 (10.4%) also had COVID-19. In the ICU were 4386 admissions, 12.1% of which also had COVID-19. A higher proportion of PIs is observed in patients hospitalized with COVID-19 than in patients without COVID-19 (2.62% vs 0.81%, respectively 1.05% vs 0.46% when standardized to the 2013 ESP = European Standard Population). In patients hospitalized in ICU, 3.68% with COVID-19 had PIs vs 1.42% without COVID-19 had PIs (1.97% vs 0.81% using the 2013 ESP). CONCLUSION: The national health registers analyses have proven that the prevalence of PIs was higher among patients hospitalized with the SARS-CoV-2 infection.

A ten-year follow-up of the prevalence of pressure injuries in the Czech Republic: Analysis of the National Registry.

The study aims to follow up on the analysis of Pressure injuries (PIs) prevalence conducted between 2007 and 2014 and after the new methodological requirements for PIs surveillance establishment at the national level. A retrospective, nationwide cross-sectional analysis of data regarding the STROBE checklist was collected by the National Health Information System (NHIS). The International Classification of Diseases (ICD-10) diagnoses L89.0-L89.9 for PIs were used in the period 2010-2019. A total of 264 442 records of patients with diagnoses of L89.0-L89.9 were identified from 2010 to 2019 (26 444 patients per year on average). The numbers are increasing every year, and there is a 40% increase between 2010 and 2019. When comparing recorded PIs, the percentage of PIs occurrence in category I decreased, and the number of PIs in category IV increased in the second analysed period. Still, in absolute numbers, there is an increase across all categories. The age of patients with recorded PIs also rose slightly in the second analysed period. We have proven the PIs prevalence increase in an ageing population.

Colorectal cancer incidence, mortality, and stage distribution in European countries in the colorectal cancer screening era: an international population-based study.

BACKGROUND: Colorectal cancer screening programmes and uptake vary substantially across Europe. We aimed to compare changes over time in colorectal cancer incidence, mortality, and stage distribution in relation to colorectal cancer screening implementation in European countries. METHODS: Data from nearly 3·1 million patients with colorectal cancer diagnosed from 2000 onwards (up to 2016 for most countries) were obtained from 21 European countries, and were used to analyse changes over time in age-standardised colorectal cancer incidence and stage distribution. The WHO mortality database was used to analyse changes over time in age-standardised colorectal cancer mortality over the same period for the 16 countries with nationwide data. Incidence rates were calculated for all sites of the colon and rectum combined, as well as the subsites proximal colon, distal colon, and rectum. Average annual percentage changes (AAPCs) in incidence and mortality were estimated and relevant patterns were descriptively analysed. FINDINGS: In countries with long-standing programmes of screening colonoscopy and faecal tests (ie, Austria, the Czech Republic, and Germany), colorectal cancer incidence decreased substantially over time, with AAPCs ranging from -2·5% (95% CI -2·8 to -2·2) to -1·6% (-2·0 to -1·2) in men and from -2·4% (-2·7 to -2·1) to -1·3% (-1·7 to -0·9) in women. In countries where screening programmes were implemented during the study period, age-standardised colorectal cancer incidence either remained stable or increased up to the year screening was implemented. AAPCs for these countries ranged from -0·2% (95% CI -1·4 to 1·0) to 1·5% (1·1 to 1·8) in men and from -0·5% (-1·7 to 0·6) to 1·2% (0·8 to 1·5) in women. Where high screening coverage and uptake were rapidly achieved (ie, Denmark, the Netherlands, and Slovenia), age-standardised incidence rates initially increased but then subsequently decreased. Conversely, colorectal cancer incidence increased in most countries where no large-scale screening programmes were available (eg, Bulgaria, Estonia, Norway, and Ukraine), with AAPCs ranging from 0·3% (95% CI 0·1 to 0·5) to 1·9% (1·2 to 2·6) in men and from 0·6% (0·4 to 0·8) to 1·1% (0·8 to 1·4) in women. The largest decreases in colorectal cancer mortality were seen in countries with long-standing screening programmes. INTERPRETATION: We observed divergent trends in colorectal cancer incidence, mortality, and stage distribution across European countries, which appear to be largely explained by different levels of colorectal cancer screening implementation. FUNDING: German Cancer Aid (Deutsche Krebshilfe) and the German Federal Ministry of Education and Research.

Complex Reporting of the COVID-19 Epidemic in the Czech Republic: Use of an Interactive Web-Based App in Practice.

BACKGROUND: The beginning of the coronavirus disease (COVID-19) epidemic dates back to December 31, 2019, when the first cases were reported in the People's Republic of China. In the Czech Republic, the first three cases of infection with the novel coronavirus were confirmed on March 1, 2020. The joint effort of state authorities and researchers gave rise to a unique team, which combines methodical knowledge of real-world processes with the know-how needed for effective processing, analysis, and online visualization of data. OBJECTIVE: Due to an urgent need for a tool that presents important reports based on valid data sources, a team of government experts and researchers focused on the design and development of a web app intended to provide a regularly updated overview of COVID-19 epidemiology in the Czech Republic to the general population. METHODS: The cross-industry standard process for data mining model was chosen for the complex solution of analytical processing and visualization of data that provides validated information on the COVID-19 epidemic across the Czech Republic. Great emphasis was put on the understanding and a correct implementation of all six steps (business understanding, data understanding, data preparation, modelling, evaluation, and deployment) needed in the process, including the infrastructure of a nationwide information system; the methodological setting of communication channels between all involved stakeholders; and data collection, processing, analysis, validation, and visualization. RESULTS: The web-based overview of the current spread of COVID-19 in the Czech Republic has been developed as an online platform providing a set of outputs in the form of tables, graphs, and maps intended for the general public. On March 12, 2020, the first version of the web portal, containing fourteen overviews divided into five topical sections, was released. The web portal's primary objective is to publish a well-arranged visualization and clear explanation of basic information consisting of the overall numbers of performed tests, confirmed cases of COVID-19, COVID-19-related deaths, the daily and cumulative overviews of people with a positive COVID-19 case, performed tests, location and country of infection of people with a positive COVID-19 case, hospitalizations of patients with COVID-19, and distribution of personal protective equipment. CONCLUSIONS: The online interactive overview of the current spread of COVID-19 in the Czech Republic was launched on March 11, 2020, and has immediately become the primary communication channel employed by the health care sector to present the current situation regarding the COVID-19 epidemic. This complex reporting of the COVID-19 epidemic in the Czech Republic also shows an effective way to interconnect knowledge held by various specialists, such as regional and national methodology experts (who report positive cases of the disease on a daily basis), with knowledge held by developers of central registries, analysts, developers of web apps, and leaders in the health care sector.

Compliance with standard precautions in inpatient healthcare settings in the Czech Republic: a cross-sectional survey.

OBJECTIVE: The study evaluates compliance with declared hygienic standards carried out by healthcare professionals in clinical practice within their scope of direct patient care and the maintenance of medical tools and devices in healthcare facilities in the Czech Republic. METHODS: Cross-sectional questionnaire study focused on the standards of safe health care. All 80 addressed healthcare providers were also involved in the 2018 Adverse Event Reporting System (AERS) pilot project. Responses were scored on a 6-level scale, from "always" (100 points) to "never" (0 points). The evaluation was performed according to the frequency of responses and the average index (max. 100 points). Data analysis was performed using IBM SPSS Statistics version 22 (level of significance 1% and 5%). RESULTS: There were statistically processed 2,016 questionnaires (100%). Most respondents stated their job classification as non-medical healthcare professionals (NHP) working at a patient's bedside (73%), physicians (16%), or other NHP (11%). As per their medical specialty, 43% of the respondents practice internal medicine, 28% surgery, 14% psychiatry, 9% long-term inpatient care, and 6% stated other fields of medicine. The lowest declared compliance was registered in the statement "I use a face mask when exposure to air-transmitted pathogens is anticipated" (rating index 80 points). The highest compliance (99.4 points) was registered in the statement: "I discard used sharp materials into sharps containers." CONCLUSION: In the surveyed healthcare facilities within the Czech Republic, overall compliance with hygiene standards is at a good level. Declared differences in compliance with hygiene standards in the selected items of the questionnaire are influenced by multiple factors. Generally, a higher level of compliance is linked to increasing age, years of practice, and a higher level of education. When comparing professional groups, a higher level of compliance with hygiene standards was registered in the NHP group.

Long term use of the telemonitoring system Diani in the therapy of a patient with type 1 diabetes.

Mobile and wearable technologies offer patients with diabetes mellitus new possibilities for data collection and their more effective analysis. The Diabesdagboga smartphone application and the Diani web portal enable to collect and analyze glycaemia values, carbohydrates intake, insulin doses and the level of physical activity. The data are not only accessible in the corresponding smartphone but also automatically transferred to an Internet portal, where they may be completed by the records from an electronic pedometer and continuous glucose monitor. All these data may then be displayed in various types of graphical outputs and are available to both the patient and the physician. The case report of a patient who has used the system for almost two years shows a significant improvement in metabolic compensation (a decrease in the mean HbA1c value by 18.6 mmol/mol as compared with the previous period).

Epidemiology of gallbladder and bile duct malignancies in the Czech Republic.

Overview of epidemiology focused on tumors of the bile ducts and gallbladder is based on data of the National Cancer Registry and its newly validated and published data from 2016. In most recent period 2012-2016, 1013 patients were annually (in average) diagnosed with tumors of the bile ducts and gallbladder in the Czech Republic. In the same time, average annual mortality of this disease reached value 836. Prevalence of bile ducts and gallbladder cancer reached 1723 in 2016 and in comparison, with the value measured in 2006, it increased by 28 %. More than 50 % of bile ducts and gallbladder cancers are diagnosed in advanced clinical stages (stage III+) which makes prognosis of patients worse and limits reachable results of therapy.

24-Hour Alberta Stroke Program Early CT Score Assessment in Post-Stroke Spasticity Development in Patients with a First Documented Anterior Circulation Ischemic Stroke.

BACKGROUND: Neuroanatomic substrates responsible for development of post-stroke spasticity are still poorly understood. The study is focused on identification of brain regions within the territory of the middle cerebral artery associated with spasticity development. METHODS: This is a single-center prospective cohort study of first documented anterior circulation ischemic strokes with a neurologic deficit lasting >7 days (from March 2014 to September 2016, all patients are involved in a registry). Ischemic cerebral lesions within the territory of middle cerebral artery were evaluated using the Alberta Stroke Program Early CT Score (ASPECTS) on control 24-hour computed tomography or magnetic resonance imaging. Spasticity was assessed with modified Ashworth scale. RESULTS: Seventy-six patients (mean age 72 years, 45% females; 30% treated with IV tissue plasminogen activator, 6.5% mechanical thrombectomy) fulfilled the study inclusion criteria. Forty-nine (64%) developed early elbow or wrist flexor spasticity defined as modified Ashworth scale >1 (at day 7-10), in 44 (58%) the spasticity remained present at 6 months. There were no differences between the patients who developed spasticity and those who did not when comparing admission stroke severity (National Institutes of Health Stroke Scale 5 [interquartile range {IQR} 4-8] versus 6 [IQR 4-10]) and vascular risk factors (hypertension, diabetes mellitus, dyslipidemia, atrial fibrillation, coronary artery disease). Nor was there a difference in 24-hour ASPECTS score (9 [IQR 8-10] versus 9 [IQR 7-10]). No differences were found between the groups with and without the early upper limb flexor spasticity of particular regions (M1, M2, M3, M4, M5, M6, lentiform, insula, caudate, internal capsule) and precentral-postcentral gyrus, premotor cortex, supplementary motor area, posterior limb of internal capsule, and thalamus were compared. CONCLUSIONS: We did not find any middle cerebral artery territory associated with post-stroke spasticity development by detailed evaluation of ASPECTS.

[Small-cell lung cancer: epidemiology, diagnostics and therapy]. / Malobunecný karcinom plic: epidemiologie, diagnostika a lécba.

Authors present actual overview of information on diagnostic and therapeutic procedures in small-cell lung cancer (SCLC). This highly aggressive type of lung cancer is diagnosed in 14.8 % of Czech lung cancer patients. Vast majority of those patients (87 %) suffer from advanced and metastatic disease in the time of diagnosis. In this issue are presented prognostic factors, staging diagnostic procedures and therapeutic recommendations. The backbone of actual SCLC treatment is combined chemotherapy and radiotherapy and less frequently, carefully in selected cases, surgical procedures. SCLC should be have as chemosensitive, chemoresistent or chemorefractory disease. Actual cytostatic combinations used in 1st line treatment, different schedules of chemoradiotherapy, drugs used in second line treatment and schedules and timing of prophylactic brain irradiation are presented. In near future, perspectively, there are some promissible data on antitumour immunotherapy based on anti CTLA-4 and anti PD-1/PE-L1 antibodies also in SCLC patients.Key words: cancer immunotherapy - concomitant chemoradiotherapy - chemotherapy - chest radiotherapy - lung resections - prophylactic brain irradiation - small cell lung cancer.

Pressure Injuries in Inpatient Care Facilities in the Czech Republic: Analysis of a National Electronic Database.

PURPOSE: The purpose of this study was to analyze pressure injury (PI) occurrence upon admission and at any time during the hospital course inpatients care facilities in the Czech Republic. Secondary aims were to evaluate demographic and clinical data of patients with PI and the impact of a PI on length of stay (LOS) in the hospital. DESIGN: Retrospective, cross-sectional analysis. SETTING AND SUBJECTS: The sample comprised data of hospitalized patients entered into the National Register of Hospitalized Patients (NRHOSP) database of the Czech Republic between 2007 and 2014 with a diagnosis L89 (pressure ulcer of unspecified site based on the International Classification of Diseases, Tenth Revision, ICD-10). Electronic records of 17,762,854 hospitalizations were reviewed. METHOD: Data from the NRHOSP from all acute and non-acute care hospitals in the Czech Republic were analyzed. Specifically, we analyzed patients admitted to acute and non-acute care facilities with a primary or secondary diagnosis of PI. RESULTS: The NRHOSP database included 17,762,854 cases, of which 46,224 cases (33,342 cases in acute care hospitals; 12,882 in non-acute care hospitals) had the L89 diagnosis (0.3%). The mean age of patients admitted with a PI was 73.8 ± 15.3 years (mean ± SD), and their average LOS was 33.2 ± 76.9 days. The mean LOS of patients hospitalized with L89 code as a primary diagnosis (n = 6877) was significantly longer compared to those patients for whom L89 code was a secondary diagnosis (25.8 vs 20.2 days, P < .001) in acute care facilities. In contrast, we found no difference in the mean LOS for patients hospitalized in non-acute care facility (58.7 days vs 65.1 days; P = .146) with ICD code L89. CONCLUSION: Pressure injuries were associated with significant LOS in both acute and non-acute care settings in the Czech Republic. Despite the valuable insights we obtained from the analysis of NRHOSP data, we advocate creation of a more valid and reliable electronic reporting system that enables policy makers to evaluate the quality and safety concerning PI and its impact on patients and the healthcare system.

No clinical evidence for performing trough plasma and intracellular imatinib concentrations monitoring in patients with chronic myelogenous leukaemia.

This multicentre study focused on monitoring imatinib mesylate (IMA) trough plasma (Ctrough ) and intracellular (IMA Cintrac ) concentrations in 228 chronic myelogenous leukaemia patients. The median of measured IMA Ctrough in our patient group was 905.8 ng ml (range: 27.7-4628.1 ng/ml). We found a correlation between IMA Ctrough and alpha 1-acid glycoprotein plasma concentrations (rS = 0.42; p < 0.001). All other analysed parameters revealed only weak (gender, dose of IMA per kg) or not significant (age, albumin, creatinine plasma concentration or body mass index) impact on measured IMA Ctrough. The IMA Ctrough decreased during the first 6 months and significantly increased later during treatment. The IMA Ctrough at the first month of therapy did not differ between patients with and without an optimal response at the 12th (p = 0.724) and 18th month (p = 0.135) of therapy. There were no significant differences in medians of IMA Ctrough between both groups measured during the first year of treatment. The IMA Cintrac during the first month were not different between patients with and without an optimal response at the 6th (p = 0.273) and the 12th month (p = 0.193) of therapy. Our data obtained from real life clinical practice did not find a benefit of routine and regular IMA Ctrough nor IMA Cintrac therapeutic drug monitoring in chronic myelogenous leukaemia patients or for subsequent adjustments of the IMA dose based on these results. Moreover, actual alpha 1-acid glycoprotein plasma concentration should be used for proper interpretation of IMA Ctrough results.

The impact of PET/CT scanning on the size of target volumes, radiation exposure of organs at risk, TCP and NTCP, in the radiotherapy planning of non-small cell lung cancer.

AIM: To compare radiotherapy plans made according to CT and PET/CT and to investigate the impact of changes in target volumes on tumour control probability (TCP), normal tissue complication probability (NTCP) and the impact of PET/CT on the staging and treatment strategy. BACKGROUND: Contemporary studies have proven that PET/CT attains higher sensitivity and specificity in the diagnosis of lung cancer and also leads to higher accuracy than CT alone in the process of target volume delineation in NSCLC. MATERIALS AND METHODS: Between October 2009 and March 2012, 31 patients with locally advanced NSCLC, who had been referred to radical radiotherapy were involved in our study. They all underwent planning PET/CT examination. Then we carried out two separate delineations of target volumes and two radiotherapy plans and we compared the following parameters of those plans: staging, treatment purpose, the size of GTV and PTV and the exposure of organs at risk (OAR). TCP and NTCP were also compared. RESULTS: PET/CT information led to a significant decrease in the sizes of target volumes, which had the impact on the radiation exposure of OARs. The reduction of target volume sizes was not reflected in the significant increase of the TCP value. We found that there is a very strong direct linear relationship between all evaluated dosimetric parameters and NTCP values of all evaluated OARs. CONCLUSIONS: Our study found that the use of planning PET/CT in the radiotherapy planning of NSCLC has a crucial impact on the precise determination of target volumes, more precise staging of the disease and thus also on possible changes of treatment strategy.

Multicriteria Decision-Making in Diabetes Management and Decision Support: Systematic Review.

BACKGROUND: Diabetes mellitus prevalence is increasing among adults and children around the world. Diabetes care is complex; examining the diet, type of medication, diabetes recognition, and willingness to use self-management tools are just a few of the challenges faced by diabetes clinicians who should make decisions about them. Making the appropriate decisions will reduce the cost of treatment, decrease the mortality rate of diabetes, and improve the life quality of patients with diabetes. Effective decision-making is within the realm of multicriteria decision-making (MCDM) techniques. OBJECTIVE: The central objective of this study is to evaluate the effectiveness and applicability of MCDM methods and then introduce a novel categorization framework for their use in this field. METHODS: The literature search was focused on publications from 2003 to 2023. Finally, by applying the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) method, 63 articles were selected and examined. RESULTS: The findings reveal that the use of MCDM methods in diabetes research can be categorized into 6 distinct groups: the selection of diabetes medications (19 publications), diabetes diagnosis (12 publications), meal recommendations (8 publications), diabetes management (14 publications), diabetes complication (7 publications), and estimation of diabetes prevalence (3 publications). CONCLUSIONS: Our review showed a significant portion of the MCDM literature on diabetes. The research highlights the benefits of using MCDM techniques, which are practical and effective for a variety of diabetes challenges.

Current survival measures reliably reflect modern sequential treatment in CML: correlation with prognostic stratifications.

Using the data of 723 chronic myeloid leukemia (CML) patients in the chronic phase, we analyzed the prognostic value of the Sokal, Euro, and EUTOS scores as well as the level of BCR-ABL1 and the achievement of complete cytogenetic response (CCgR) at 3 months of imatinib therapy in relation to the so-called current survival measures: the current cumulative incidence (CCI) reflecting the probability of being alive and in CCgR after starting imatinib therapy; the current leukemia-free survival (CLFS) reflecting the probability of being alive and in CCgR after achieving the first CCgR; and the overall survival. The greatest difference between the CCI curves at 5 years after initiating imatinib therapy was observed for the BCR-ABL1 transcripts at 3 months. The 5-year CCI was 94.3% in patients with BCR-ABL1 transcripts ≤ 10% and 57.1% in patients with BCR-ABL1 transcripts > 10% (P = 0.005). Therefore, the examination of BCR-ABL1 transcripts at 3 months may help in early identification of patients who are likely to perform poorly with imatinib. On the other hand, CLFS was not significantly affected by the considered stratifications. In conclusion, our results indicate that once the CCgR is achieved, the prognosis is good irrespective of the starting prognostic risks.

Project I-COP - architecture of software tool for decision support in oncology.

This article briefly describes the development of the I-COP tool, which is designed to promote education and decision making of clinical oncologists. It is based on real data from medical facilities, which are processed, stored in database, analyzed and finally displayed in an interactive software application. Used data sources are shortly described in individual sections together with the functionality of developed tools. The final goal of this project is to provide support for work and education within each involved partner center. Clinical oncologists are therefore supposed to be the authors and users at the same time.

Comparison of COVID-19 epidemic among Czech dentists and the Czech general population.

Dentists are one of the professional groups most at risk for COVID-19 infection. Enhanced protective measures in dentistry have been adopted worldwide; however, it is unclear to what extent they were sufficient. To assess whether the protective measures outweighed the high infection risk, we compared COVID-19-related data between Czech dentists and the general Czech population. The data was obtained through a survey study attended by 15.8% of Czech Dental Chamber members. Data of the general population were acquired from the Czech Ministry of Health database. By the end of May 2022, COVID-19 full vaccination and 1st booster dose rates among study participants were 85.8% and 70.1%, respectively, which is significantly higher (p < 0.0001) compared to the Czech general population aged over 24 years (74.9% and 49.4%, respectively). To the same date, PCR/Antigen test verified COVID-19 prevalence among participants was 41.7%, and 49.9% among the general population (p < 0.0001). Prevalence and reinfection rates among individuals who received the 1st booster were significantly lower than among individuals without the booster or full vaccination (p < 0.0001). Persons who received the booster showed a faster return to work, shorter and different types of complications. Willingness to future vaccination was positive among 79.7% of respondents. Mandatory vaccination for healthcare workers and the general population was supported by 62.0% and 49.0%, respectively. The results showed that the high risk of COVID-19 infection associated with dentistry did not lead to higher COVID-19 prevalence among respondents compared to the general population.

Prognostic Significance of Immune-checkpoint Molecule PD-L1 in Classical Hodgkin Lymphoma: A Clinicopathologic Study of 120 Cases.

BACKGROUND/AIM: Classic Hodgkin lymphoma (cHL) is a common B-cell malignancy. Despite the good prognosis, in some patients the standard chemotherapy and radiotherapy-based approach does not lead to long-term remission, and these patients eventually relapse. Moreover, the primary refractory disease is of major concern regarding prognosis. PATIENTS AND METHODS: We performed a retrospective analysis to evaluate PD-L1 expression in 120 patients with classic Hodgkin lymphoma (cHL). RESULTS: The median follow-up of the entire group of patients was 90 months. After initial therapy, complete remission was achieved in 113 (94.2%) patients. During the follow-up, cHL relapse/refractory disease was reported in 23 (19.2%) cases. A total of five patients died during the follow-up period, all from cHL progression. When determining PD-L1 expression on Hodgkin-Reed-Sternberg (HRS) cells, 37 cases (30.8%) were evaluated as negative, and 83 cases (69.2%) as positive. In the negative PD-L1 group of patients, no cHL relapse/refractory disease was observed during the follow-up period. However, out of 83 patients with positive PD-L1 expression on HRS cells, 23 (28%) showed relapse/refractory cHL. CONCLUSION: A significantly higher relapse rate was observed in PD-L1-positive patients diagnosed with cHL.

A Telemedicine System Intervention for Patients With Type 1 Diabetes: Pilot Feasibility Crossover Intervention Study.

BACKGROUND: Today's diabetes-oriented telemedicine systems can gather and analyze many parameters like blood glucose levels, carbohydrate intake, insulin doses, and physical activity levels (steps). Information collected can be presented to patients in a variety of graphical outputs. Despite the availability of several technical means, a large percentage of patients do not reach the goals established in their diabetes treatment. OBJECTIVE: The objective of the study was to evaluate the benefits of the Diani telemedicine system for the treatment of patients with type 1 diabetes mellitus. METHODS: Data were collected during a 24-week feasibility study. Patients responded to the World Health Organization Quality of Life - BREF (WHOQOL-BREF) questionnaire and a system evaluation questionnaire. The level of glycated hemoglobin (HbA1c) and the patient's body weight were measured, and the patient's use of the telemedicine system and their daily physical activity level were monitored. All data were sent from the patient's device to the Diani server using a real-time diabetes diary app. Wilcoxon and Friedman tests and the linear mixed effects method were used for data analysis. RESULTS: This study involved 10 patients (men: n=5; women: n=5), with a mean age of 47.7 (SD 19.3) years, a mean duration of diabetes of 10.5 (SD 8.6) years, and a mean HbA1c value of 59.5 (SD 6.7) mmol/mol. The median number of days the patients used the system was 84. After the intervention, the mean HbA1c decreased by 4.35 mmol/mol (P=.01). The patients spent 18.6 (SD 6.8) minutes on average using the app daily. After the intervention, the number of patients who measured their blood glucose level at least 3 times a day increased by 30%. The graphical visualization of the monitored parameters, automatic transmission of measured data from the glucometer, compatibility, and interconnection of individual devices when entering data were positively evaluated by patients. CONCLUSIONS: The Diani system was found to be beneficial for patients with type 1 diabetes mellitus in terms of managing their disease. Patients perceived it positively; it strengthened their knowledge of diabetes and their understanding of the influences of the measured values on the management of their disease. Its use had a positive effect on the HbA1c level.