No abstract

No abstract

Purpose Certain patient demographics and biomarkers have been suggested to predict survival in patients infected with COVID-19. However, predictors of outcome in patients who are critically ill are unclear. Materials and Methods We performed a multicentre analysis of 171 consecutive patients with confirmed COVID-19 who were admitted to the intensive care unit (ICU) between 1 March 2020 and 30 April 2020 and were followed until 23 May 2020. Demographic data, past medical history, laboratory values, echocardiographic and telemetry data were analysed. Patient status was classified as either alive or deceased at hospital discharge or the end of follow-up period. Results Mean patient age was 66±13 and 57% were male. Mortality rate of this ICU cohort at the end of follow-up was 46.2%. A multivariable logistic regression analysis identified the presence or history of atrial fibrillation (Odds Ratio 4.8, p=0.004) as a significant cardiovascular attribute that contributed to increased mortality. Conclusion Mortality of critically ill COVID-19 patients is high. This study suggests a relationship between atrial fibrillation and increased mortality from COVID-19. Early aggressive treatment patients with high risk characteristics, such as atrial fibrillation could improve clinical outcome.

Background: Atrial Fibrillation (AF) is the most common cardiac arrhythmia and hypertension is the most common risk factor associated with AF. The addition of renal sympathetic nerve denervation (RSDN) to pulmonary vein isolation (PVI) in AF patients with hypertension has been reported to improve clinical outcomes. Methods: A systematic search was performed for studies on patients with AF and hypertension that compared RSDN with PVI versus PVI-alone. Risk ratio (RR) for categorical variables and mean difference (MD) for continuous variables with 95% confidence intervals were used. Results: Seven studies with a total of 734 patients were included. A total of 340 patients were in the RSDN + PVI group (46.32%) and 394 (53.67%) in the PVI group. A total of 608 patients had paroxysmal AF (83%) while 126 patients had persistent AF (17%). At 12 months follow-up, RSDN + PVI decreased the overall risk of AF recurrence in hypertensive patients with RR 0.60 [95% CI 0.50-0.72, P < .00001]. A subgroup analysis performed in patients with drug-resistant hypertension showed a similar reduction in AF recurrence with RR 0.61 [95% CI: 0.47-0.79, P = .0002). Procedure duration MD + 28.05 min [95% CI: 18.88-37.23, P < .00001] and fluoroscopy duration MD + 5.59 min [95% CI: 3.31-8.19, P < .00001] were significantly longer with the RSDN + PVI group. There was no significant difference in complications between the two groups. Conclusion: The addition of RSDN to PVI in patients with AF and hypertension appears safe and decreases AF recurrence. Similar results were observed in patients with drugresistant hypertension. Larger trials are needed to confirm these results.