ASSESSMENT OF FIRST AID KNOWLEDGE AMONG MEDICAL AND NON-MEDICAL UNIVERSITY STUDENTS

   INTRODUCTION: Cardiovascular diseases and the associated sudden cardiac arrest (SCA) are the main cause of death in Poland and around the world. The immediate reaction of bystanders to the event increases the survivor’s chances of survival. The aim of this study was to assess the knowledge and declared skills of medical and non-medical students regarding the methods and techniques of first aid. METHODS: During the period April–May 2017 at Collegium Mazovia Innovative University in Siedlce (Poland), a study was carried out using the anonymous questionnaire of author’s design on the principles of first aid. The survey was addressed to 200 part-time students of medical (medical emergency, nursing, physiotherapy) and non-medical (finance and construction) degrees. RESULTS: There were statistically significant differences between the self-assessment of knowledge about first aid and the field of study (p < 0.001). The question “How do you evaluate your knowledge about first aid” by comparing the medical, financial and construction fields of study showed that a level assessed as very good was indicated by: 38% vs. 7% vs. 8% students, respectively. A good level was indicated by 51% vs. 37% vs. 24% of students respectively while an average level was shown by: 11% vs. 49% vs. 64% of students respectively. In addition, a lack of knowledge was displayed by: 0% vs. 7% vs. 4% of students, respectively. CONCLUSIONS: Our data indicates that: (1) the state of non-medical students’ knowledge concerning first aid was unsatisfactory; (2) it is advisable to promote knowledge about current CPR guidelines in the non-medical student population

Development of a spray-ejector condenser for the use in a negative CO2 emission gas power plant

One promising solution for developing low-emission power technologies is using gaseous fuel combustion in pure oxygen when the exhaust gas mixture is composed of H2O and CO2, and where CO2 is separated after steam condensation. The paper presents the results of computational analyses providing to the Spray-Ejector Condenser (SEC) development, which is one of the crucial components of the negative CO2 gas power plant (nCO2PP) cycle development. The proposed design of the ejector-condenser to ensure the high effectivity of vapor condensation and CO2 compression with preparation to separation, ready for application in gas power cycle, is a novelty of this research. Different computational techniques leading to the development and better understating of ejector operation were applied. The main operating conditions in the characteristic connected with the developed nCO2pp cycle points were investigated to evaluate the impact of the operating conditions on SEC performances. The amount of motive water needed for the cooling purpose is susceptible to the inlet water pressure and temperature and strongly affects the generated pressure of the suction stream. The preliminary results confirm that the SEC's basic design and geometrical dimensions can be applied in the negative CO2 power plant cycle. Results from CFD modeling give the possibility to investigate the turbulent flow of water/steam/CO2 mixture together with the condensation process occurring at this same time. It is found that the average droplet diameter and motive water supplying method significantly effects the condensation intensity. The further direction of the presented computational research activities and results is to test various designs of Spray-Ejector Condensers that will enable the evaluation of the direct contact condensation process and develop the final geometrical design. © 2023 The AuthorsDevelopment of a spray-ejector condenser for the use in a negative CO2 emission gas power plantpublishedVersio

EMPATHY AND BURNOUT SYNDROME IN THE PRACTICE OF EMERGENCY SERVICES — PILOT STUDY

  INTRODUCTION: The burnout syndrome is a result of stress on the work situation and most often concerns pro­fessions requiring emotional and direct contact with another human being. The level of empathy is closely related to the phenomenon of occupational burnout. The aim of the study was to determine the impact of socio-demo­graphic factors of emergency services employees on the level of empathy. METHOD: In the period January–March 2018, a survey was conducted using a questionnaire — Emphatic Sensi­tiveness Scale (ESC) and an anonymous author’s questionnaire containing questions regarding sex, age, length of employment, occupation, marital status and number of hours worked per month. The survey was addressed to 81 employees of emergency services: paramedics (n = 17) and firefighters (n = 23). The control group consisted of 16 nurses and 25 people performing non–medical professions. RESULTS: The average number of hours worked per month by the respondents was 189 ± 49. There were 50 fe­males (62%) and 31 males (38%). The questionnaire showed statistically significant differences in perspective taking domain between the control group composed of people working in non-medical professions (25.6 ± 4.3) and emergency services professionals: firefighter (28.7 ± 3.6) vs. paramedic (29.9 ± 3.5) vs. nurse (31.2 ± 3.0), p < 0.001. It has been shown a statistically significant effect of sex on personal distress domain: male (21.4 ± 4.2) vs. female (24.3 ± 4.7), p = 0.005. CONCLUSIONS: In conclusion, our data indicates that: (1) Nurses were characterised by the highest level of empathy amongst the surveyed professional groups; (2) Females were characterised by a higher level of personal distress; (3) Variables such as sex, age, and length of employment did not affect the level of empathy

Effect of angiotensin-converting enzyme inhibitor and angiotensin receptor blocker initiation on organ support-free days in patients hospitalized with COVID-19

IMPORTANCE Overactivation of the renin-angiotensin system (RAS) may contribute to poor clinical outcomes in patients with COVID-19. Objective To determine whether angiotensin-converting enzyme (ACE) inhibitor or angiotensin receptor blocker (ARB) initiation improves outcomes in patients hospitalized for COVID-19. DESIGN, SETTING, AND PARTICIPANTS In an ongoing, adaptive platform randomized clinical trial, 721 critically ill and 58 non–critically ill hospitalized adults were randomized to receive an RAS inhibitor or control between March 16, 2021, and February 25, 2022, at 69 sites in 7 countries (final follow-up on June 1, 2022). INTERVENTIONS Patients were randomized to receive open-label initiation of an ACE inhibitor (n = 257), ARB (n = 248), ARB in combination with DMX-200 (a chemokine receptor-2 inhibitor; n = 10), or no RAS inhibitor (control; n = 264) for up to 10 days. MAIN OUTCOMES AND MEASURES The primary outcome was organ support–free days, a composite of hospital survival and days alive without cardiovascular or respiratory organ support through 21 days. The primary analysis was a bayesian cumulative logistic model. Odds ratios (ORs) greater than 1 represent improved outcomes. RESULTS On February 25, 2022, enrollment was discontinued due to safety concerns. Among 679 critically ill patients with available primary outcome data, the median age was 56 years and 239 participants (35.2%) were women. Median (IQR) organ support–free days among critically ill patients was 10 (–1 to 16) in the ACE inhibitor group (n = 231), 8 (–1 to 17) in the ARB group (n = 217), and 12 (0 to 17) in the control group (n = 231) (median adjusted odds ratios of 0.77 [95% bayesian credible interval, 0.58-1.06] for improvement for ACE inhibitor and 0.76 [95% credible interval, 0.56-1.05] for ARB compared with control). The posterior probabilities that ACE inhibitors and ARBs worsened organ support–free days compared with control were 94.9% and 95.4%, respectively. Hospital survival occurred in 166 of 231 critically ill participants (71.9%) in the ACE inhibitor group, 152 of 217 (70.0%) in the ARB group, and 182 of 231 (78.8%) in the control group (posterior probabilities that ACE inhibitor and ARB worsened hospital survival compared with control were 95.3% and 98.1%, respectively). CONCLUSIONS AND RELEVANCE In this trial, among critically ill adults with COVID-19, initiation of an ACE inhibitor or ARB did not improve, and likely worsened, clinical outcomes. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT0273570