ABSTRACT
Background: The COVID-19 vaccines were developed unprecedentedly and have proven safe and efficacious in reducing transmissibility and severe infection. The impact of mRNA-based COVID-19 vaccines on atrial arrhythmias (AA) incidence is unknown. Objective(s): To analyze the incidence of AA after COVID-19 vaccination in patients with a cardiac implantable electronic device (CIED). Method(s): BIOTRONIK Home Monitoring data and Medicare claims data from CERTITUDE patients implanted with a CIED between 2010-20 were utilized to identify recipients of one or more doses of the COVID-19 vaccine in 2021. Those who had influenza vaccination in 2020 were also identified in the same cohort as a control. From remote monitoring data, the number of atrial high rate events (AHR) and % burden of AA in the three months post-vaccination was compared to the preceding three months using Wilcoxon signed rank test. Kruskal-Wallis test was used for group difference comparisons. New AF diagnosis was determined from ICD-10 diagnosis codes in Medicare claims. Result(s): First and 2nd doses of COVID vaccine (50% Pfizer, 47% Moderna, and 3% J&J) were administered to 7757 and 6579 individuals with a CIED (age 76.2 (+/-9.0) y, 49% males), respectively. In the same cohort, 4723 (61%) individuals received the influenza vaccine. A statistically significant increase in the number of AHR episodes and % burden of AA was noted in the three months post-vaccination compared to the preceding three months after the 1st and 2nd doses of the COVID-19 vaccine (Figure). No such association was noted following influenza vaccination. In subgroup analysis, AHR episodes increased significantly in age groups >70 and men. Post-vaccination increase in AHR episodes was more significant in those without a pre-vaccination history of AHR episodes (mean increase of AHR 6.9+/-88.4, p<0.001) and was non-significant in those with a preceding history of AHR (p=0.8). Among the 764 patients with no AF diagnosis in claims preceding the first COVID-19 vaccine, 87 (11.4%) developed a new AF diagnosis or AHR event in the first three months post-vaccination. Conclusion(s): We report a small but significant increase in the number of CIED-detected atrial arrhythmias following vaccination for COVID-19 but not influenza, specifically in men and age >70 years. Acknowledging the immense public health benefit of COVID-19 vaccines, our results should prompt increased awareness of evaluating for AF in this high-risk group following vaccination. [Formula presented]Copyright © 2023
ABSTRACT
Background: In past 2 years, COVID-19 pandemic has affected the health care system adversely. World statistics showed a huge rise in the incidence of this highly infectious disease. Abnormal and unregulated immune response was found to be the key deciding factor for the outcome of this disease. A lot of studies showed a promising role of corticosteroids as immunosuppressant agents. They reduce morbidity and mortality in patients with moderate-to-severe COVID-19 disease. However, steroid therapy comes with a huge concern in form of their adverse effects, especially on prolonged use. Optimum duration of steroid therapy is not standardized. Aim and Objectives: The present study was carried out to determine days of oxygen requirement and duration of hospital stay in patients receiving short course steroid vis-à-vis long course steroid therapy. Materials and Methods: A retrospective observational study was conducted in tertiary care teaching hospital after prior permission of the Institutional Ethics Committee. All patients diagnosed as having moderate COVID-19 illness with age group of 18–80 years with minimum 03 days of 6 mg dexamethasone or other equivalent steroid administration were included in the study. Patients who were living with HIV/AIDS, cancer, hepatic and renal illness, ischemic and other valvular diseases, and chronic pulmonary diseases affecting oxygenation status were excluded from the study. A total of 203 study participants were enrolled during study period (68 in short course while 135 in long course steroid group). Data were enrolled in predesigned structured and validated case record form. Results: Short course steroid therapy was found more frequent in <60 years of age. Mean and SD of days of oxygen administration were (4.36 vs. 8.88) and (2.15 vs. 3.43) in short course and long course steroid therapy, respectively. Oxygen requirement for ≥7 days was in (10, 7.41%) patients and (45, 66.18%) patients in short course steroid group and long course steroid group, respectively. Mean and standard deviation of duration of hospital stay were (6.64, 2.87) and (11.9, 4.03) in short course and long course steroid group, respectively. Hospital stay for more than 9 days was (20, 14.81%) and (47, 69.12%) in short course and long course steroid group, respectively. Conclusion: A positive association was found between duration of hospital stay and long course steroid therapy and was statistically significant. Similarly, a positive association between days of oxygen requirement and long course steroid therapy was found and again it was statistically significant. The study findings indicated that short course steroid therapy was found to be more effective in treatment outcome of COVID-19 illness as far as the duration of hospital stay and oxygen administration parameters are concerned.
ABSTRACT
Introduction Cardiac tamponade is a potentially fatal complication after cardiac surgery. An acute accumulation of fluid generally presents as Beck's triad, however, a slowly accumulating pericardial effusion can have variable clinical presentations. We report a case of transient pre-excitation on post-operative electrocardiogram (ECG) after cardiac transplantation with resolution of aberrant conduction following pericardiocentesis for cardiac tamponade. Case Report A 46-year-old African American male with NICM HFrEF (EF 18%) presented in cardiogenic shock, COVID pneumonia requiring milrinone infusion and intra-aortic balloon pump support for stabilization. After clearance of his viral replicon, he underwent orthotopic heart transplantation. His postoperative course was complicated by monomorphic non-sustained ventricular tachycardia. His ECGs revealed a right bundle branch block with prominent delta waves concerning for pre-excitation through an accessory pathway. Electrophysiology was consulted and confirmed an accessory pathway localized to the right superior paraseptal region. He subsequently developed atrial fibrillation and his mean blood pressure dropped from 80 to 60mmHg. A bedside echocardiogram showed a large, circumferential pericardial effusion concerning for cardiac tamponade. He was emergently taken to the catheterization lab for pericardiocentesis with drainage of 500cc of serosanguinous fluid. Post-pericardiocentesis ECG revealed resolution of his atrial fibrillation, and unexpectedly, his wide QRS and pre-excitation pattern was replaced by narrow complex sinus rhythm. Summary This case illustrates the atypical presentation of cardiac tamponade in patients who have undergone orthotopic heart transplantation. The pre-excitation and wide QRS pattern may be secondary to pericardial irritation from the effusion leading to changes in the conduction properties of a previously concealed accessory cardiac pathway.