Background SARS-coronavirus-2 [coronavirus disease 2019 (COVID-19)] infection is a public health issue affecting millions of people. It started in Wuhan in China in December 2019 spreading rapidly worldwide. Case summary Three patients aged 51–84 developed a pericarditis related to COVID-19, associated for two of them with a myocarditis. Case 1 was a COVID-19 cardiac tamponade without myocarditis, confirmed by a positive chest computed tomography (CT) scan. Case 2 showed a COVID-19 myopericarditis, confirmed by a positive chest CT scan and a SARS-coronavirus-2 positive swab. Case 3 was a cardiac tamponade due to COVID-19 pericarditis, with a positive polymerase chain reaction on pericardial fluid. They were all treated by colchicine and their condition improved rapidly. Discussion Presumably rare, we reported three cases of pericardial effusions (PEs) occurring in a single cardiology centre. There is a higher incidence of COVID-19-related cardiac diseases such as pericarditis that can manifest as a minimal PE to a cardiac tamponade, which should result in a higher awareness of cardiologists. A systematic measure of the high-sensitivity troponin kinetic in patients affected by COVID-19 could be interesting in order to screen for potential myocarditis. Any unexplained haemodynamic failure or increased cardiac biomarkers should make the medical team search for myopericarditis by a transthoracic echocardiography.

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Postprocedural CT-ADP > 180 seconds is an independent predictor of significant PVAR 30 days after TAVR and may independently contribute to major/life-threatening bleedings.

Background: Spontaneous reanalyzed coronary thrombus (SRCT) has been reported in autopsy series, but little is known about SRCT, and it is potentially under-diagnosed in clinical practice. Methods and Results:SRCT identified on OCT were included in a French multicenter series, the Lotus Root French Registry. A total of 34 SRCT were identified on OCT in 33 patients (23 male; median age, 56 years; IQR, 52-65 years); 23/33 patients (70%) presented with angina pectoris and/or dyspnea. Three angiographic aspects were distinguished retrospectively: braided, pseudodissected, and hazy. Stenosis severity on quantitative coronary analysis varied between 11% and 100% (median, 45%), whereas the reduction in lumen area on OCT varied between 20% and 92% (median, 68%). A typical "lotus root" aspect was confirmed on OCT, consisting of multiple circular concave-edged channels of varying size, numbering between 3 and 12 depending on the slice, separated by smooth-edged septa of high luminosity without posterior attenuation. OCT also served to guide treatment, with stenting in 91% of cases. During the 17-month follow-up 91% of patients had excellent evolution. One death and 3 ACS events occurred. Conclusions:In this large SRCT cohort, angiography had limited diagnostic value whereas OCT could be used to define disease characteristics and guide treatment of lesions inducing angina pectoris and/or silent myocardial ischemia. OCT-guided management was associated with good prognosis.

The objective of this study was to estimate the French national updated reference levels (RLs) for coronary angiography (CA) and percutaneous coronary intervention (PCI) by a dose audit from a large data set of unselected procedures and in standard-sized patients. Kerma-area product (PKA), air kerma at interventional point (Ka,r), fluoroscopy time (FT), and the number of registered frames (NFs) and runs (NRs) were collected from 51 229 CAs and 42 222 PCIs performed over a 12-month period at 61 French hospitals. RLs estimated by the 75th percentile in CAs and PCIs performed in unselected patients were 36 and 78 Gy.cm² for PKA, 498 and 1285 mGy for Ka,r, 6 and 15 min for FT, and 566 and 960 for NF, respectively. These values were consistent with the RLs calculated in standard-sized patients. The large difference in dose between sexes leads us to propose specific RLs in males and females. The results suggest a trend for a time-course reduction in RLs for interventional coronary procedures.