ABSTRACT
Objectives: In this study we evaluate the efficacy and safety of a treatment protocol with standard dose of hydroxychloroquine plus azithromycin in patients hospitalized with COVID-19 infection. Methods: We conducted a retrospective analysis to compare the 28-day mortality rate in 352 patients treated with hydroxychloroquine with or without azithromycin (HCQ-group) in our hospital with a contemporary control group of 3533 patients receiving standard of care from the Belgian Collaborative Group on COVID-19 Hospital Surveillance. Results: All patients who received at least one dose of treatment were included in the analysis. A statistically significant reduction in crude mortality rate at 28 days was observed in the HCQ-group compared to standard of care (16.8% vs 25.9%,p â= â0.001).Patients in the treatment group were on average younger (69,7 vs73,1 years, p â= â0,0002), were less likely to smoke or to have malignancy and more likely to be male. Patients in the treatment group were more likely to be obese, immunocompromised or to have arterial hypertension, liver disease and lung disease.After adjustment for these variables the OR for mortality was 0.635 (95%CI 0.464-0.875). Patients who did not receive HCQ had a 57% higher risk of mortality. A survival benefit in the treatment group was consistent across all age groups. 13 patients discontinued treatment due to side effects (4 with QTc-prolongation>60msec (1.1%) and 9 because of gastro-intestinal symptoms (2.55%)). No episodes of ventricular arrhythmia or torsade de pointes were recorded during treatment. Conclusion: Treatment of COVID-19 using a combination of hydroxychloroquine plus azithromycin was safe and was associated with a statistically significant mortality benefit in the treatment of COVID-19 infection in hospitalized patients. Our findings do not support the current negative recommendations regarding this treatment.
ABSTRACT
OBJECTIVE: Adherence to pain medication in patients with cancer is crucial for successful pain therapy. This review aimed to investigate the rate of adherence, which factors influence adherence, whether adherence differs in diverse patient populations, whether there are methods to improve adherence, and the relationship between adherence and pain relief. METHODS: This review was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. MEDLINE/PubMed, Embase, Web of Science, Cochrane, and ClinicalTrials.gov were searched. All types of studies investigating adherence of patients with cancer, factors influencing adherence, and methods to improve adherence to pain medication were included. They were first screened on title and abstract and thereafter on full text. Selected articles were subjected to a quality assessment according to the PRISMA checklist. From included articles, study characteristics and outcomes were extracted. RESULTS: Of 795 articles, 18 were included. Different methods were used to measure adherence, which led to adherence rates ranging from 8.9% to 82.0%. White Americans and men were found to be more adherent than African Americans and women. Because of various barriers, adherence is often suboptimal. Fear of addiction, physiological and harmful effects, tolerance, and disease progression are common concerns. Interventions, such as pain education booklets, pain consults, and specialized nurses, may be beneficial to increase the adherence. Lower adherence rates were associated with lower pain relief. CONCLUSION: Adherence of cancer patients to pain medication is suboptimal. Health care workers should focus on addressing barriers to increase adherence to obtain better pain relief.
