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Chronic kidney disease and cardiovascular disease are strictly connected each other with a bidirectional interaction. Thus, the prevention of cardio-renal damage, as its appropriate treatment, are essential steps for a correct management of long-term patients' prognosis. Several preventive and therapeutic strategies, pharmacological and not, are now available for cardio-renal damage prevention and treatment, and for the management of its complications. The second part of this consensus document focuses on the management and treatment of cardio-renal damage, directing the attention on the correct use of drugs that may slow renal disease progression, on the application of preventive strategies in case of invasive cardiac procedures with the use of contrast agents, and on the accurate use of cardiological drugs in patients with chronic kidney disease.

Chronic kidney disease (CKD) and cardiovascular (CV) disease are highly prevalent conditions in the general population and are strictly connected to each other with a bidirectional interaction. In patients affected by CKD, the leading cause of morbidity and mortality is represented by CV disease, since CKD promotes the atherosclerotic process increasing inflammation, and modifying lipid and bone mineral metabolism. On the other side, a strict relationship exists between CKD and CV risk factors, which are prevalent in nephropathic patients and impose a stringent assessment of the risk of CV events in this population together with an optimized pharmacological approach, complicated by the coexistence of the two pathological conditions. The first part of this consensus document focuses on the mechanisms of cardio-renal damage and on the impact, as well as the management, of the main CV risk factors in the context of CKD.

Although the clinical course of COVID-19 in its acute phase is now delineated, less known is its late phase characterized by a heterogeneous series of sequelae affecting various organs and systems, including the cardiovascular system, which continue after the acute episode or arise after their resolution. This syndrome, now referred with the new acronym "PASC" (post-acute sequelae of SARS-CoV-2 infection) has been formally recognized by various scientific societies and international organizations that have proposed various definitions. The World Health Organization defines PASC, distinguishing it from "ongoing symptomatic COVID-19", as a condition that arises few weeks after infection, persists at least 8 weeks, and cannot be explained by alternative diagnoses.There are multiple mechanisms responsible for PASC: inflammation, immune activation, viral persistence, activation of latent viruses, endothelial dysfunction, impaired response to exercise, and profound cardiac deconditioning following viral infection. The key symptoms of PASC are palpitations, effort dyspnea, chest pain, exercise intolerance, and postural orthostatic tachycardia syndrome.For PASC treatment, it may be useful to take salt and fluid loading, to reduce symptoms such as tachycardia, palpitations, and/or orthostatic hypotension, or in some subjects the use of drugs such as beta-blockers, non-dihydropyridine calcium channel blockers, ivabradine, and fludrocortisone.Finally, in PASC a gradual resumption of physical activity is recommended, starting with recumbent or semi-recumbent exercise, such as cycling, swimming, or rowing, and then moving on to exercise in an upright position such as running when the ability to stand improves without dyspnea appearance. Exercise duration should also be short initially (5 to 10 min per day), with gradual increases as functional capacity improves.

Vaccine-associated myocarditis and pericarditis usually develop within 14 days of COVID-19 vaccination, are exceptionally rare, manifest with mild clinical pictures and are commonly characterized by a favorable evolution. Young men inoculated with two doses of an mRNA vaccine are the subgroup at higher risk. Recent epidemiological studies evaluated the incidence and risk of vaccine-associated myocarditis and pericarditis among men and women, in different ranges of age and specific types of vaccines. Long-term population analyses demonstrated that the cardiovascular risk conferred by COVID-19 extends beyond the acute phase, representing the rationale for implementing prevention strategies for SARS-CoV-2 infection, monitoring specific populations at higher risk and pursuing the completion of the vaccination campaign. This document provides an update on the most recent scientific evidence and critical interpretation of available data in constant evolution towards personalized strategies of immunization.

A large percentage of patients, predominantly female, who undergo coronary angiography for typical chest pain do not have significant coronary stenosis. Many of these patients with microvascular myocardial disease have left ventricular hypertrophy, cardiomyopathies, valve disease, or other clinical conditions. The definition of microvascular angina is based on (i) symptoms of myocardial ischemia, (ii) absence of obstructive coronary artery disease (<50% stenosis on coronary angiography or coronary computed tomography scan), (iii) objective evidence of myocardial ischemia (ischemic electrocardiographic abnormalities during episodes of chest pain and/or myocardial perfusion defects or regional contractility abnormalities), and (iv) pathological indices of microcirculation (index of microcirculatory resistance >25, coronary flow reserve <2.0) and/or microvascular spasm (TIMI flow <2) during intracoronary vasoreactivity tests. The basic mechanisms and the diagnostic tests of microvascular dysfunction are reported in detail.From a clinical standpoint, while the crucial role of microcirculation in determining short- and long-term prognosis is evident, efforts to date to improve clinical outcomes in patients with microvascular obstruction have had limited success, most likely because microvascular dysfunction is a multifactorial process with several interdependent underlying pathophysiological mechanisms. Therefore, further studies are needed to develop effective therapeutic strategies for microvascular myocardial disease.

The use of sacubitril/valsartan has been fully recognized in the most recent European and American guidelines that recommend in class I the prescription of this drug in heart failure patients with reduced systolic function. Besides the effects on cardiovascular mortality and heart failure hospitalization, sacubitril/valsartan significantly reduces NT-proBNP levels and improves cardiac remodeling, recognized as one of the mechanistic effects of the drug that is linked to favorable prognostic effects. A careful evaluation of the patients' clinical profile is needed to implement the use of sacubitril/valsartan into clinical practice and to make the treatment successful. This second part of the position paper focuses on the mechanistic effects of angiotensin receptor-neprilysin inhibitors and on its placement in current guidelines, also suggesting the use of sacubitril/valsartan in specific clinical settings.

Renin-angiotensin-aldosterone (RAAS) system inhibition is a mainstay of the pharmacological treatment of heart failure with reduced ejection fraction and has been implemented by the introduction of angiotensin receptor-neprilysin inhibitors (ARNI), that combine RAAS inhibition with the inhibition of neprilysin, enhancing the favorable effects of natriuretic peptides. The PARADIGM-HF trial demonstrated a favorable effect of sacubitril/valsartan over enalapril in terms of mortality and heart failure hospitalization rate reduction. Then several randomized clinical trials and observational studies confirmed the favorable role of ARNI in different clinical scenarios, supporting the guideline class I recommendation for the use of sacubitril/valsartan in patients with reduced systolic function. The first part of this position paper summarizes the history of RAAS inhibition and reports the results of ARNI trials that support the recommendations of the most recent guidelines.

The current COVID-19 pandemic has renewed interest in providing healthcare services based on the implementation of innovative technologies. Such strategy capillarizes the therapeutic opportunities for larger urban areas, mostly when people are living under extraordinarily difficult circumstances. Improving care delivery in cardiovascular diseases appears particularly feasible when telemedicine is pursued, especially with regard to baseline standard 12-lead electrocardiography, ambulatory electrocardiographic monitoring, and 24-hour ambulatory blood pressure monitoring. Nowadays, these first-line cardiovascular examinations are also available in health centers and pharmacies, and in recent months, there has been an increasing demand of such local services in the absence of specific rules and regulations regarding technical requirements and standards of interpretation that ensure a high quality clinical consultation.The purpose of this position paper is to provide critical requirements for the type/model of devices to be used, training dedicated to healthcare personnel, ensuring security of sensitive data, highlighting type of platforms to be used, as well as for maintaining high reporting quality and standards.

The coronavirus disease (COVID-19) pandemic has caused 2.69 million deaths and 122 million infections. Great efforts have been made worldwide to promptly develop effective vaccines and reduce morbidity and mortality rates from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Available vaccines have proven highly effective at preventing symptomatic disease in clinical trials and real-world reports and are playing an essential role in flattening the epidemiology curve and, mostly, in reducing COVID-19 hospitalizations. Some concerns have been raised after very rare cases of myocarditis and pericarditis recently reported by the Centers for Disease Control and Prevention (CDC) as potentially associated with COVID-19 mRNA vaccinations, namely the Pfizer-BioNTech mRNA vaccine (BNT162b2) and the Moderna mRNA vaccine (mRNA-1273). Therefore, the aim of this document is to explore the possible link between COVID-19 mRNA vaccination and the development of myocarditis and/or pericarditis by performing a critical analysis of available data and to provide indications for specific subgroups of individuals.

Patients with severely calcified coronary lesions undergoing percutaneous revascularization have a substantial risk of adverse outcomes, both during the procedure and in the long term. Over the last decade, a renewed interest has been observed about devices for plaque modification and lesion preparation, new technologies have been introduced in clinical practice and well-known devices have undergone technical and procedural improvements. The available tools for intravascular imaging allow a detailed evaluation of the calcific plaques within all the layers of the vessel wall. The complementary use of all these tools is ultimately aimed at optimizing the mechanics of balloon angioplasty and the delivery and expansion of drug-eluting stents. It has been fully demonstrated that rotational atherectomy improves procedural success when treating heavily calcified lesions. Intravascular lithotripsy, techniques and materials used during complex procedures such as chronic total occlusions, increasing operators' experience, as well as new drug-eluting stents with excellent mechanical characteristics, have further contributed to the feasibility and the safety of treating most fibrotic and heavily calcified vessels. We finally propose an algorithm for evaluation and treatment of severely calcific coronary lesions to demonstrate how such percutaneous revascularization procedures are planned and performed.

In over a year, the COVID-19 pandemic caused 2.69 million deaths and 122 million infections. Social isolation and distancing measures have been the only prevention available for months. Scientific research has done a great deal of work, developing in a few months safe and effective vaccines against COVID-19. In the European Union, nowadays, four vaccines have been authorized for use: Pfizer-BioNTech, Moderna, ChAdOx1 (AstraZeneca/Oxford), Janssen (Johnson & Johnson), and three others are currently under rolling review.Vaccine allocation policy is crucial to optimize the advantage of treatment preferring people with the highest risk of contagion. These days the priority in the vaccination program is of particular importance since it has become clear that the number of vaccines is not sufficient for the entire Italian population in the short term. Cardiovascular diseases are frequently associated with severe COVID-19 infections, leading to the worst prognosis. The elderly population suffering from cardiovascular diseases is, therefore, to be considered a particularly vulnerable population. However, age cannot be considered the only discriminating factor because in the young-adult population suffering from severe forms of heart disease, the prognosis, if affected by COVID-19, is particularly ominous and these patients should have priority access to the vaccination program. The aim of this position paper is to establish a consensus on a priority in the vaccination of COVID-19 among subjects suffering from different cardiovascular diseases.

Leadless pacemaker therapy now represents a reality in the field of cardiac pacing. It was developed with the aim of reducing post-procedural complications due to endocavitary leads and with the intention to propose itself as a valid alternative in patients who have contraindications to conventional pacing. Leadless pacemakers to date allow right ventricular stimulation and are implanted through a percutaneous venous femoral access. Currently, the system available is the MicraTM Transcatheter Pacing System. On November 2017, the worldwide implants of the NanostimTM Leadless Pacemaker System were halted. These devices have shown promising results in the various clinical trials with complications mostly due to the implant procedure. In order to avoid these complications, a correct learning curve of the operators has resulted very important. Recently, a new system, the WiSE-CRT, has been introduced as a leadless alternative to cardiac resynchronization therapy. While the results of randomized trials and long-term follow-up studies are still pending, in this paper we will review the main clinical data that have been published to date, comparing them to the traditional devices for transvenous endocardial stimulation.

Primary percutaneous coronary intervention is the standard treatment in patients with ST-segment elevation myocardial infarction achieving a TIMI 3 flow in more than 90% of patients. However, despite a brisk epicardial coronary flow in the infarct-related artery, frequently post-ischemic microvascular damage limits the efficacy of primary PCI. Recent studies suggest that thrombectomy during primary PCI, in patients with intracoronary angiographically visible thrombus, represents a useful adjunct to pharmacotherapy able to prevent distal embolization.