Effectiveness of a Smoking Cessation Program during the COVID-19 Pandemic.

The coronavirus disease-2019 pandemic has caused major obstacles for effective smoking cessation programs by significantly limiting access to healthcare. This cross-sectional analysis aimed to assess the effectiveness of a self-developed smoking cessation program during the pandemic. The program was based on remote lectures, educational interventions, and hybrid services provided by an outpatient clinic. We assessed 337 participants enrolled to the program between January 2019 and February 2022. Data on demographic characteristics, medical history, and smoking status at baseline and after at least 1-year follow-up were collected from medical records and a standardized self-developed questionnaire. Participants were classified into two groups according to their current smoking status. The smoking cessation rate at 1 year was 37% (95% confidence interval [CI]: 31-42%). Major predictors of smoking cessation were the place of residence, ability to refrain from smoking during severe illness, and the number of cigarettes smoked per day. The proportion of participants with high levels of nicotine dependence at baseline was 40.8% (95% CI: 34.5-47.5%) vs. 29.1% (95% CI: 23.4-35.5%) after the program. In the group that did not quit smoking, there were more participants who smoked within 5 min after waking up than before the program (40.4% [95% CI: 34.0-47.1%] vs. 25.4% [95% CI: 19.9-31.6%]). Effective smoking cessation interventions can be performed using remote counseling and education.

Potential therapeutic application of mesenchymal stem cells in COVID-19 complications.

Mesenchymal stem cells (MSCs) have remarkable immunomodulatory properties, low immunogenicity, and paracrine properties as well as the ability to differentiate into multiple cell lines. These properties make them potential candidates for clinical applications in the treatment of neurodegenerative, cardiovascular, and lung diseases, which may be occupational diseases. Preclinical studies using experimental animal models have demonstrated regenerative properties of MSCs in diseases such as silicosis and occupational asthma. Currently, treatment of the novel disease COVID-19 could be enhanced by using MSC therapies. This disease affects many professional groups with great intensity and its consequences might be considered as an occupational disease. It is a significant public health problem and a therapeutic challenge. Despite the development of vaccines against COVID-19, there is growing concern about the emergence of new mutations of the SARS-CoV-2 virus in addition to the known alpha, beta, gamma, and delta variants. There is still no effective COVID-19 treatment and the existing ones only play a supporting role. MSCs offer treatment possibilities as an alternative or complementary therapy. The clinical trials to date using MSCs in patients with COVID-19 give hope for the safe and effective use of this stem cell population. Med Pr. 2021;72(6):693-700.

Thromboprophylaxis in hospitalized COVID-19 patients: the efficacy and safety of the approved hospital protocol.

Introduction: Prothrombotic coagulopathy in COVID-19 has led to a strong recommendation for thromboprophylaxis in all hospitalized patients, although there are large differences in the dosage regimens among hospitals and their outcomes remain uncertain. Objectives: We aimed to determine the incidence of thrombotic events and bleeding in patients with COVID-19 using the approved local thromboprophylaxis protocol. Patients and methods: We adapted a self-developed pharmacological thromboprophylaxis protocol based on clinical and laboratory risk assessment of thrombosis in 350 consecutive patients (median age, 67 years) with confirmed COVID-19, treated in designated wards at a single center in Kraków, Poland from October 10, 2020, to April 30, 2021. We recorded in-hospital venous and arterial thromboembolic events, major or clinically relevant bleeding, and deaths along with other complications related to heparin administration. Results: Thromboprophylaxis with low-molecular-weight heparin was administered in 99.7% of patients, 57 (16%) were treated in the intensive care unit. As many as 92% of patients followed the protocol for more than 85% of hospitalization time. Thromboembolic events occurred in 16 patients (4.4%): venous thromboembolism (n = 4; 1.1%), ischemic stroke (n = 4; 1.1%), and myocardial infarction (n = 8; 2.2%). Hemorrhagic complications were observed in 31 patients (9%), including fatal bleeds (n = 3; 0.9%). The overall mortality was 13.4%. The prophylactic, intermediate, and therapeutic anticoagulation preventive strategies with heparin were not related to any of the outcomes. Conclusions: The thromboprophylaxis protocol approved in our institution was associated with a relatively low risk of thromboembolism and bleeding, which provides additional evidence supporting the adoption of institutional strategies to improve outcomes in hospitalized patients with COVID-19.