Impact of Therapeutic Education on the Management of High Blood Pressure: A Quasi-experimental Survey From Southern Tunisia.

INTRODUCTION: The prevalence of arterial hypertension (HTA) was continuously increased with a low percentage of pressure control blood pressure among treated patients. Therapeutic education (TE) was one of the inventive methods in the management of high blood pressure (HBP) worldwide. The objective was to assess the impact of TE on the control and management of HBP. METHODS: This was a quasi-experimental study consisting of an intervention, a pretest, and a post-test evaluation. This study was conducted in the external consultation service of cardiology CHU HEDI CHAKER of Sfax during over a period of 4 months (November 2021-March 2022). RESULTS: In total, 35 of the patients (50%) were women with a sex ratio of 1. The mean age was 63.33 ± 8.91 years. We noted a statistically significant decrease on both systolic and diastolic blood pressure blood pressure values after TE among educated patients (135.3 ± 9.77 vs. 141.9 ± 10.9; P = 0.010) and (75 [70-80] vs. 80 [75-80]; P = 0.002), respectively. We found a significantly good knowledge about HBP definition (Odds ratio [OR] = 3.4; P = 0.022), HBP symptoms (OR = 9.1; P < 0.001), and HBP complications (OR = 12.3; P < 0.001) among educated patients. A significant association was noted between educated patients and low daily salt consumption after TE (OR = 2.7; P = 0.048). Powered by Editorial Manager and ProduXion Manager from Aries Systems Corporation Educated patients had significantly more adequate auto-control devise use (OR = 1.01; P = 0.028). Moreover, the respect of therapeutic compliance was statistically more important among educated patients (OR = 3.7; P = 0.028). CONCLUSIONS: Our results showed that the TE training session is an operative intervention to improve HBP management. Thus, integrating TE therapy in daily care should be continuous and should be exhaustive to all cardiovascular and all chronic diseases.

Effectiveness of a training program on health-care professionals' knowledge and practices regarding thermo-sensitive reusable medical devices disinfection: A quasi-experimental study.

INTRODUCTION: Appropriate knowledge of healthcare professionals (HCPs) on the various aspects of disinfection and reuse of medical devices is a basic requirement to ensure proper disinfection and to minimize the risk of healthcare associated infections. In this regard this study aimed to assess the effectiveness of a training intervention on knowledge and practices regarding thermosensitive reusable medical devices (TRMD) disinfection among HCPs. METHODS: This was a quasi-experimental study including a pre-test, an intervention (workshops, demonstrations, posters), and a post-test evaluation of the HCPs' knowledge and practices regarding the disinfection of TRMD. It was conducted between February and July 2022 at Hedi Chaker University hospital, Sfax, Southern Tunisia. RESULTS: Overall, 31 participants were females (54.4%). The global Knowledge Score (KS) had significantly risen from pre-to post-training test (61.0 ± 9 vs 74.0 ± 12.5; p < 0.001). According to the disinfection type, the KS of non-critical and critical TRMD disinfection had significantly increased between pre and post-intervention (60 (IQR = [40.0-80.0]) vs 80 (IQR = [40.0-80.0]), p < 0.001) and (66.6 (IQR = [50.0-66.6]) vs 83.3 (IQR = [66.6-100.0]); p < 0.001) respectively. The mean change in global KS of TRMD disinfection was statistically higher among females (17.5 ± 11.2 vs 8.5 ± 3.2; p = 0.006) and medical staff (18.9 ± 11.9 vs 7.1 ± 3.9; p = 0.019). Conformity scores did not significantly change after the training program (58.1 ± 22.7 vs 63.7 ± 19.6; p = 0.678). CONCLUSION: This study highlighted the effectiveness of the training intervention on HCP knowledge. However, practices were not improved. Conducting ongoing audits with on-the-job training is extremely needed.

Low back-pain among school-teachers in Southern Tunisia: prevalence and predictors.

OBJECTIVES: In the professional environment, low back pain (LBP) is a multifactorial symptomatology, despite scientific and technological advances in the design and the arrangement of increasingly ergonomic workstations. Teachers are not exempt from this risk, due to prolonged sitting or standing. In light of this, this study aimed to estimate LBP prevalence among teachers in Southern Tunisia and to identify their determinants. METHODS: It was a cross-sectional study including a representative sample of teachers from secondary, middle, and primary schools in Sfax, Tunisia, conducted during the period March-April 2021. LBP intensity was assessed using a visual analog scale from 1 to 10. A severe LBP was defined as VAS≥7. RESULTS: Among the participants, 292 teachers were females (55.6 %). The median age was 48 years (Interquartile Range (IQR)=[41-53] years). Overall, 377 teachers had a severe LBP, with a global prevalence of 71.8 %. Multivariate analysis showed that independent determinants of LBP among teachers were female gender (Adjusted Odds Ratio (AOR)=2.81;p<0.001), age ≥30 (AOR=5.68;p=0.009), chronic diseases (AOR=2.52;p<0.001), working at primary schools (AOR=1.75;p=0.033), working for ≥4 h per day (AOR=2.41;p=0.005), inadequate ergonomic conditions at work (AOR=1.78;p=0.008) and distance home-school ≥10 km (AOR=2.27;p=0.003). CONCLUSIONS: This study demonstrated that LBP among teachers was alarmingly high. Different individual, ergonomic, and occupational factors were predictors of this symptom. Thus, development of rational strategies for LBP prevention among teachers and the improvement of working conditions are urgently needed.

COVID-19-Related Fear and Mental Distress Among Tunisian Primary, Middle and High School Teachers: Prevalence and Predictive Factors.

This study aimed to determine the prevalence and predictive factors of fear of COVID-19 and serious mental distress among teachers in public schools of Southern Tunisia. This was a cross sectional study among a representative sample of 525 teachers. The level of Fear was assessed using the Fear of COVID-19 Scale (FCV-19S). A high level was defined as an FCV-19S ≥ 22. Kessler 6 (K6) was performed to predict serious mental distress. Serious mental distress was defined as a K6 score ≥ 13. The prevalence rates of high level of fear of COVID-19 and serious mental distress were 32.8% and 63.8%, respectively. Independent factors associated with a high level of fear of COVID-19 were female gender (Adjusted odds ratio (AOR)=1.6 [1.1-2.5]), chronic disease (AOR=1.6 [1.1-2.4]), home-living children (AOR=3.3 [1.4-7.8]), and poor material working conditions (AOR=1.5 [1.2-2.1]). The high level of fear of COVID-19 (AOR=3.1 [1.8-5.1]) was independently associated with serious mental distress. Living in a rural area (AOR=0.4 [0.3-0.8]), previous COVID-19 infection (AOR=0.5 [0.4-0.8]) and going to school on foot (AOR=0.3 [0.2-0.51]) were independently associated with a lower prevalence of serious mental distress.

Energy-Aware IoT-Based Method for a Hybrid On-Wrist Fall Detection System Using a Supervised Dictionary Learning Technique.

In recent decades, falls have posed multiple critical health issues, especially for the older population, with their emerging growth. Recent research has shown that a wrist-based fall detection system offers an accessory-like comfortable solution for Internet of Things (IoT)-based monitoring. Nevertheless, an autonomous device for anywhere-anytime may present an energy consumption concern. Hence, this paper proposes a novel energy-aware IoT-based architecture for Message Queuing Telemetry Transport (MQTT)-based gateway-less monitoring for wearable fall detection. Accordingly, a hybrid double prediction technique based on Supervised Dictionary Learning was implemented to reinforce the detection efficiency of our previous works. A controlled dataset was collected for training (offline), while a real set of measurements of the proposed system was used for validation (online). It achieved a noteworthy offline and online detection performance of 99.8% and 91%, respectively, overpassing most of the related works using only an accelerometer. In the worst case, the system showed a battery consumption optimization by a minimum of 27.32 working hours, significantly higher than other research prototypes. The approach presented here proves to be promising for real applications, which require a reliable and long-term anywhere-anytime solution.

Adverse effects of personnel protective equipment among first line COVID-19 healthcare professionals: A survey in Southern Tunisia.

BACKGROUND: Health care professionals (HCP) were obliged to wear personal protective equipment (PPE) during pandemic in order to minimize the risk of transmission of the emerging virus. The objective of the study was to estimate the prevalence of adverse effects related to the wear of PPE among HCP and to determinate their predictive factors. METHODS: This was a cross-sectional study including a representative sample of 300 randomized HCP at Hedi Chaker University Hospital Sfax, Tunisia, during the period August-September 2021. Data collection was carried out by an anonymous self-administered questionnaire. RESULTS: PPE related adverse effects were noted among 87 HCP with a prevalence of 57.2%. Multivariate analysis showed that factors independently associated with PPE adverse effects were female gender (Adjusted Odds Ratio (AOR) = 1.8; p = 0.048), chronic diseases (AOR = 0.29; p = 0.001) and previous infection with COVID-19 (AOR = 0.46; p = 0.004). Frequent use of bleach or other disinfection product without protection and use of hot water at work were independently associated with a high risk of adverse effects ((AOR = 2.22; p = 0.003) and (AOR = 2.83; p = 0.005), respectively). Similarly, a duration of use of PPE>4 h per day (AOR = 1.98; p = 0.039), as well as use of visors and/or glasses (AOR = 1.84; p = 0.045) were independently associated with PPE related adverse effects. CONCLUSION: The prevalence of adverse effects related to the wear of PPE was alarmingly high among HCP. Multiple risk factors were highlighted, notably professional aspects. Adequate and repetitive training for caregivers on the correct use of PPE remain essential to manage this problem.

Mechanical Recycling and Its Effects on the Physical and Mechanical Properties of Polyamides.

The aim of this study is to investigate the impact of mechanical recycling on the physical and mechanical properties of recycled polyamide 6 (PA6) and polyamide 66 (PA66) in relation to their microstructures. Both PA6 and PA66 raw materials were reprocessed six times, and the changes in their properties were investigated as a function of recycling number. Until the sixth round of recycling, slight changes in the mechanical properties were detected, except for the percentage of elongation. For the physical properties, the change in both flexural strength and Young's modulus followed a decreasing trend, while the trend in terms of elongation showed an increase. Microscopic analysis was performed on virgin and recycled specimens, showing that imperfections in the crystalline regions of polyamide 6 increased as the number of cycles increased.

Prevalence and Factors Affecting Willingness to Accept or Refuse Vaccination against COVID-19 among Healthcare Professionals in Southern Tunisia.

BACKGROUND: The COVID-19 pandemic continues to spread throughout the world causing serious morbidity and mortality. Health care professionals (HCP) are on the front line in the face of this pandemic and are identified as priorities for COVID-19 vaccination. This study aimed to estimate the acceptability rate of the COVID-19 vaccination among HCP and to identify their predisposing factors. Methods: This was a cross-sectional study using an anonymous self-administered questionnaire including a randomized sample of HCP in Southern Tunisia, on March-April 2021. Results: Among 300 participants, the COVID-19 vaccine acceptability rate was 65.3%. Factors independently associated with vaccine acceptability were age groups <30 years [Adjusted Odds Ratio (AOR)=4.36; p = 0.002)], urbanity of residence (AOR = 3.44; p = 0.027), medical professional category (AOR = 2.69; p = 0.023) and caring for coronavirus infected patients (AOR = 2.32; p = 0.047). Belief that COVID-19 vaccination is important to work safely as a health care provider (AOR = 3.26; p = 0.013), should be available for all HCP (AOR = 17.98; p = 0.004) and has been quickly developed before it has been thoroughly vetted and tested for efficacy and safety (AOR = 5.88; p < 0.01) were independently associated with willingness to accept vaccine. Planning to get a COVID-19 vaccine for the next years and recommending it to the family were independent predictive factors of accepting COVID-19 vaccine ((AOR = 6.88; p < 0.001) and (AOR = 25.03; p < 0.001), respectively).Conclusion: The acceptance rate of vaccination against COVID-19 among Tunisian HCP is still low in South Tunisian hospitals. Socio-demographic, cultural and professional factors predisposing to the vaccination willingness were highlighted. Combating the vaccine hesitancy of HCP through enhancing sensibilization campaigns is essential to promote vaccination in general population.

Thromboembolic events in COVID-19 ambulatory patients: An observational study about incidence, and thromboprophylaxis outcomes.

INTRODUCTION: There are no clear data about the incidence and the prophylactic strategies of arterial and venous thromboembolic events (TE) in COVID-19 ambulatory patients. Thus, we conducted this study to analyze thromboembolic complications in this setting and to assess thromboprophylaxis management and outcomes in the real life. PATIENTS AND METHODS: This is an observational study including Covid-19 ambulatory patients. We assessed incidence of venous and arterial TE events as well as thromboprophylaxis outcomes and hemorrhagic complications. We defined high risk thrombo-embolic factor according to the Belgian guidelines which are the only guidelines that described thromboprophylaxis in COVID-19 ambulatory patients. RESULTS: We included 2089 patients with a mean age of 43±16 years. The incidence of 30 days venous and arterial TE complications in our cohort was 1%. Venous thromboembolic complications occurred in 0.8% and arterial thromboembolic complications occurred in 0.3%.We noted at least one high-risk TE factor in 18.5% of patients but thromboprophylaxis was prescribed in 22.5% of the cases, LMWH in 18.1%, and Rivaroxaban in 3.7%. Hemorrhagic events occurred in eight patients (0.3%): five patients showed minor hemorrhagic events and three patients showed major ones (0.14%). CONCLUSIONS: Our study showed that the incidence of thromboembolic complications is very low in COVID-19 ambulatory patients. Paradoxically, there is an over prescription of thrombo-prophylaxis in this population.

LoRaChainCare: An IoT Architecture Integrating Blockchain and LoRa Network for Personal Health Care Data Monitoring.

Over the past several years, the adoption of HealthCare Monitoring Systems (HCS) in health centers and organizations like hospitals or eldery homes growth significantly. The adoption of such systems is revolutionized by a propelling advancements in IoT and Blockchain technologies. Owing to technological advancement in IoT sensors market, innovations in HCS to monitor patients health status have motivated many countries to strength their efforts to support their citizens with such care delivery systems under the directives of a physician who has access to patient's data. Nevertheless, secure data sharing is a principal patient's concern to be comfort to use such systems. Current HCS are not able to provide reassuring security policies. For that, one of our focus in this work, is to provide security countermeasures, likewise cost-efficient solution for HCS by integrating storage model based on Blockchain and Interplanetary File Systems (IPFS). Blockchain technology is an emerging solution in pharmaceutical industry and starts to take place for HCS and allows HealthCare providers to track connected devices and control access to shared data, hence protecting patients' privacy. Furthermore, the addition of Edge and Fog computing has improved HCS to react in real-time and enhance their reliability. A variety of communication protocols can connect sensor devices to edge/Fog layer and the best choice will depend upon connectivity requirements: range, bandwidth, power, interoperability, security, and reliability. Instead, systems efficiency would decline and hurt if communication protocol is inconsistent. LoRa (Long Range) communications technology is emerging as the leader among Low-Power Wide-Area Networks (LPWANs) entering the IoT domain benefiting from many features such as long-range distances and low power consumption. This work proposes LoRaChainCare, an architecture model for HCS which combines the technologies Blockchain, Fog/Edge computing, and the LoRa communication protocol. A real implementation of LoRaChainCare system is presented and evaluated in terms of cost, run time and power consumption.

Point prevalence survey of health-care associated infections and their risk factors in the tertiary-care referral hospitals of Southern Tunisia.

BACKGROUND: Health-care associated infections (HAI) are considered a public health problem and have substantial effect on mortality and morbidity. This study aimed to determine the prevalence of HAI in South Tunisian University Hospitals (UH) and to identify their risk factors. METHODS: We performed a point prevalence study, in the UH of Southern Tunisia in February 2019, including all hospitalized patients for at least 48 hours. RESULTS: Overall, 898 patients were included in this survey, among whom 480 participants (53.5%) were males. There were 81 HAIs, accounting for a prevalence of HAI of 9.02%. Urinary tract infections (28.4%) were the most common HAI, followed by respiratory tract infections (22.2%). The main identified microorganisms among HAI patients were Klebsiella pneumonia (22.7%) and Escherichia coli (20.7%). Independent intrinsic risk factors of high prevalence of HAI were diabetes (Adjusted Odds Ratio (AOR)=3.5;p=0.016) having a rapidly fatal disease (AOR=4;p=0.024) and an ASA scores ≥2 (AOR=2.8;p=0.045). As for extrinsic risk factors, admission in ICU (AOR=11.1;p= 0.04), a length of hospital stay ≥ 7 days (AOR=4.1;p=0.04), previous hospitalization within 90 days prior to the admission (AOR=4.2;p=0.01) and having a peripheral vascular catheter (AOR=6.7; p=0.039) were independently associated with higher prevalence of HAI. Lower prevalence of HAI was independently associated with prescription of antimicrobial preoperative prophylaxis (AOR= 0.1; p=0.02). CONCLUSION: Our findings illustrated high prevalence of HAI in South Tunisian Hospitals, affecting principally fragilized patients who may require special needs. Therefore, promoting hygiene programs for health professionals to establish patient safety's culture is urgently needed.