ABSTRACT
The coronavirus disease 19 (COVID-19) pandemic represented a great challenge for health systems, which had to quickly readapt and dedicate most of their resources to managing this crisis. The postponement of programmed interventions such as coronary revascularization procedures represented a critical issue in the first wave of the COVID-19 pandemic, especially in the hardest-hit countries such as Spain. However, the precise consequences of the delay of coronary revascularizations are not clearly determined. In the present work, interrupted time series (ITS) analysis was used to evaluate the utilization rates and assessment of the risk profiles of patients receiving two main coronary revascularization procedures (percutaneous coronary intervention-PCI and coronary artery bypass graft-CABG) and compared them in the periods before and after March 2020 using the Spanish National Hospital Discharge Database (SNHDD). Our results show that the abrupt reorganization of hospital care that represented the first wave of COVID-19 in March 2020 in Spain led to a reduction in cases, which was accompanied by an increase in the risk profile of CABG patients, but not PCI. On the other hand, the risk profile of both coronary revascularization procedures began before the pandemic, showing a significant temporal trend toward an increase in the risk profile. Future works should be directed to study and validate our results, evaluating other databases, regions, or countries.
ABSTRACT
In December 2019, SARS-CoV-2 was identified in Wuhan, China. Infection by SARS-CoV-2 causes coronavirus disease 2019 (COVID-19), which is characterized by fever, cough, dyspnea, anosmia, and myalgia in many cases. There are discussions about the association of vitamin D levels with COVID-19 severity. However, views are conflicting. The aim of the study was to examine associations of vitamin D metabolism pathway gene polymorphisms with symptomless COVID-19 susceptibility in Kazakhstan. The case-control study examined the association between asymptomatic COVID-19 and vitamin D metabolism pathway gene polymorphisms in 185 participants, who previously reported not having COVID-19, were PCR negative at the moment of data collection, and were not vaccinated. A dominant mutation in rs6127099 (CYP24A1) was found to be protective of asymptomatic COVID-19. Additionally, the G allele of rs731236 TaqI (VDR), dominant mutation in rs10877012 (CYP27B1), recessive rs1544410 BsmI (VDR), and rs7041 (GC) are worth consideration since they were statistically significant in bivariate analysis, although their independent effect was not found in the adjusted multivariate logistic regression model.