The Impact of the COVID-19 Pandemic on Cardiac Procedure Wait List Mortality in Ontario, Canada.

BACKGROUND: The novel SARS-CoV-2 (COVID-19) pandemic has dramatically altered the delivery of healthcare services, resulting in significant referral pattern changes, delayed presentations, and procedural delays. Our objective was to determine the effect of the COVID-19 pandemic on all-cause mortality in patients awaiting commonly performed cardiac procedures. METHODS: Clinical and administrative data sets were linked to identify all adults referred for: (1) percutaneous coronary intervention; (2) coronary artery bypass grafting; (3) valve surgery; and (4) transcatheter aortic valve implantation, from January 2014 to September 2020 in Ontario, Canada. Piece-wise regression models were used to determine the effect of the COVID-19 pandemic on referrals and procedural volume. Multivariable Cox proportional hazards models were used to determine the effect of the pandemic on waitlist mortality for the 4 procedures. RESULTS: We included 584,341 patients who were first-time referrals for 1 of the 4 procedures, of whom 37,718 (6.4%) were referred during the pandemic. The pandemic period was associated with a significant decline in the number of referrals and procedures completed compared with the prepandemic period. Referral during the pandemic period was a significant predictor for increased all-cause mortality for the percutaneous coronary intervention (hazard ratio, 1.83; 95% confidence interval, 1.47-2.27) and coronary artery bypass grafting (hazard ratio, 1.96; 95% confidence interval, 1.28-3.01), but not for surgical valve or transcatheter aortic valve implantation referrals. Procedural wait times were shorter during the pandemic period compared with the prepandemic period. CONCLUSIONS: There was a significant decrease in referrals and procedures completed for cardiac procedures during the pandemic period. Referral during the pandemic was associated with increased all-cause mortality while awaiting coronary revascularization.

Cardiovascular procedural deferral and outcomes over COVID-19 pandemic phases: A multi-center study.

BACKGROUND: The COVID-19 pandemic has disrupted routine cardiovascular care, with unclear impact on procedural deferrals and associated outcomes across diverse patient populations. METHODS: Cardiovascular procedures performed at 30 hospitals across 6 Western states in 2 large, non-profit healthcare systems (Providence St. Joseph Health and Stanford Healthcare) from December 2018-June 2020 were analyzed for changes over time. Risk-adjusted in-hospital mortality was compared across pandemic phases with multivariate logistic regression. RESULTS: Among 36,125 procedures (69% percutaneous coronary intervention, 13% coronary artery bypass graft surgery, 10% transcatheter aortic valve replacement, and 8% surgical aortic valve replacement), weekly volumes changed in 2 distinct phases after the initial inflection point on February 23, 2020: an initial period of significant deferral (COVID I: March 15-April 11) followed by recovery (COVID II: April 12 onwards). Compared to pre-COVID, COVID I patients were less likely to be female (P = .0003), older (P < .0001), Asian or Black (P = .02), or Medicare insured (P < .0001), and COVID I procedures were higher acuity (P < .0001), but not higher complexity. In COVID II, there was a trend toward more procedural deferral in regions with a higher COVID-19 burden (P = .05). Compared to pre-COVID, there were no differences in risk-adjusted in-hospital mortality during both COVID phases. CONCLUSIONS: Significant decreases in cardiovascular procedural volumes occurred early in the COVID-19 pandemic, with disproportionate impacts by race, gender, and age. These findings should inform our approach to future healthcare disruptions.

Indirect Impact of the COVID-19 Pandemic on Activity and Outcomes of Transcatheter and Surgical Treatment of Aortic Stenosis in England.

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[Impact of COVID-19 pandemic on structural heart interventions in Italy]. / Impatto della pandemia da COVID-19 sulla cardiologia interventistica strutturale in Italia.

BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic has led to deferral of many non-urgent procedures in most healthcare systems worldwide. With this study we aimed to quantify the impact of COVID-19 on interventional treatment of structural heart disease (SHD) in Italy. METHODS: Numbers of transfemoral transcatheter aortic valve replacement (TAVR), percutaneous mitral valve repair (PMVR), left atrial appendage occlusion (LAAO), patent foramen ovale (PFO) closures performed over a 4-week period during the national lockdown in Italian centers performing over 60 structural heart interventions (SHI)/year were compared with the same 4-week period in 2019. Incidence rate reductions (IRR) were estimated by zero-inflated negative binomial regression. RESULTS: According to our nationwide analysis, SHIs were reduced by 79% as compared to the same period in 2019 (IRR 0.21, 95% confidence interval [CI] 0.15-0.29). This reduction was more substantial for PFO closure (IRR 0.03, 95% CI 0.01-0.07), LAAO (IRR 0.11, 95% CI 0.05-0.25) and PMVR (IRR 0.12, 95% CI 0.04-0.36) as compared to TAVR (IRR 0.31, 95% CI 0.22-0.47). CONCLUSIONS: The COVID-19 pandemic caused a 79% drop in SHI volumes in Italy. PFO closure, LAAO and PMVR decreased more significantly as compared to TAVR. Further studies are needed to evaluate the impact of this reduction on outcomes of patients with SHD.

STS-ACC TVT Registry of Transcatheter Aortic Valve Replacement.

The STS-ACC TVT Registry (Society of Thoracic Surgeons-American College of Cardiology Transcatheter Valve Therapy Registry) from 2011 to 2019 has collected data on 276,316 patients undergoing transcatheter aortic valve replacement (TAVR) at sites in all U.S. states. Volumes have increased every year, exceeding surgical aortic valve replacement in 2019 (72,991 vs. 57,626), and it is now performed in all U.S. states. TAVR now extends from extreme- to low-risk patients. This is the first presentation on 8,395 low-risk patients treated in 2019. In 2019, for the entire cohort, femoral access increased to 95.3%, hospital stay was 2 days, and 90.3% were discharged home. Since 2011, the 30-day mortality rate has decreased (7.2% to 2.5%), stroke has started to decrease (2.75% to 2.3%), but pacemaker need is unchanged (10.9% to 10.8%). Alive with acceptable patient-reported outcomes is achieved in 8 of 10 patients at 1 year. The Registry is a national resource to improve care and analyze TAVR's evolution. Real-world outcomes, site performance, and the impact of coronavirus disease 2019 will be subsequently studied. (STS/ACC Transcatheter Valve Therapy Registry [TVT Registry]; NCT01737528).

Catheterization laboratory activity before and during COVID-19 spread: A comparative analysis in Piedmont, Italy, by the Italian Society of Interventional Cardiology (GISE).

BACKGROUND: COronaVIrus Disease 19 (COVID-19) led to the reorganization of Cardiology Units in terms of working spaces and healthcare personnel. In this scenario, both outpatient visits and elective interventional cardiology procedures were suspended and/or postponed. We aimed to report the impact of COVID-19 on interventional coronary and structural procedures in Piedmont, Italy. METHODS: The number of coronary angiographies (CAG), percutaneous coronary interventions (PCI), primary PCI (pPCI), transcatheter aortic valve replacements (TAVR) and Mitraclip performed in Piedmont between March 1st and April 20th, 2020 (CoV-time) were collected from each catheterization laboratory and compared to the number of procedures performed the year before in the same months (NoCoV-time). RESULTS: Procedural data from 18 catheterization laboratories were collected. Both coronary (5498 versus 2888: difference: -47.5%; mean 305.4 VS 160.4; p = 0.002) and structural (84 versus 17: difference: -79.8%; mean 4.7 Vs 0.9; p < 0.001) procedures decreased during CoV-time compared to NoCoV-time. In particular, coronary angiographies (1782 versus 3460), PCI (1074 versus 1983), p PCI (271 versus 410), TAVR (11 versus 72) and Mitraclip (6 versus 12) showed a reduction of 48.5%, 45.7%, 33.7%, 84.7% and 50.0%, respectively (all p for comparison <0.05). CONCLUSIONS: Compared to the same time-period in 2019, both coronary and structural interventional procedures during COVID-19 epidemic suffered a dramatic decrease in Piedmont, Italy. Organizational change and structured clinical pathways should be created, together with awareness campaigns.

Caution regarding potential changes in AVR practices during the COVID-19 pandemic.

To improve resource allocation in face of the COVID-19 pandemic, hospitals around the country are restricting the performance of elective surgery to preserve ventilators, operating rooms, ICU beds and protect anesthesiologists. For patients with severe aortic stenosis, efforts to bring treatment to symptomatic patients amid this pandemic might lead to favored use of catheter based management using minimalist techniques that do not require these elements. In this context, some patients with well tested surgical indications for valve replacement may be treated by catheter-based methods. It is important that outcomes for these cases are followed closely both at respective sites and in national registries. As we recover from this pandemic, surgical cases should once again be driven by multi-disciplinary discussion and clinical trial data, and not a mentality of crisis management.