…most common agent. These streptococci most often originate from the oral cavity and affect heart valves that have some kind of damage, change or degeneration…

…The presence of ecotdense masses on valves should lead to suspicion of endocarditis (the masses are vegetations). The risk of endocarditis is especially high for…

…Stress increases myocardial oxygen requirements, principally through increased heart rate and contractility. In the presence of a flow limiting coronary stenosis, supply cannot increase adequately…

…of vascular autoregulation during a rapid or severe rise in BP. This may produce acute injury in the brain, retina, heart, aorta, kidneys, or other…

…the anticoagulation indication. Previous stroke or TIA. The presence of mitral stenosis, a mechanical heart valve or hypertrophic cardiomyopathy. Heart failure, hypertension, diabetes and vascular…

…the diagnosis of heart failure is clinically secure and the LVEF measurement is reliable. Nevertheless, these findings increase diagnostic confidence. The presence of symptoms alone…

…vast majority of cases, the re entry circuit in atrial flutter is located in the right atrium and it typically loops around the tricuspid valve…

…observational databases report approximately 5–10%. Only about 10% of patients who develop shock present with it at hospital admission; approximately 90% deteriorate during hospitalization…

…with symptoms having all of the traditional aggravating and relieving characteristics of angina; many patients report less characteristic symptoms, while others present primarily with exertional…

…except in a mechanical valve prosthesis and in moderate to severe mitral stenosis, where warfarin applies. Apixaban is often preferred, among other reasons because it…

…management. The recommendations presented throughout this section align with the guidelines issued by the European Society of Cardiology (ESC), the American Heart Association (AHA), and…

…e.g. myocardial remodeling in heart failure or after myocardial infarction). Ventricular arrhythmias are easier to induce in the presence of arrhythmogenic substrates. A substrate…

…transient ischemic attack or stroke, and initiation of renal replacement therapy. The study found no significant differences between the two treatment groups with respect to…

…high risk and should influence the urgency of management: Recurrent or ongoing chest pain despite medical treatment Acute heart failure presumed to result from ongoing…

…adults with elevated blood pressure (BP), in whom absolute cardiovascular risk varies considerably according to age and the presence of concomitant risk factors. In contrast…

…cardiac tamponade. The classical signs of cardiac tamponade are hypotension, muffled heart sounds and jugular venous distention. Other frequent symptoms are pulsus paradoxus, pericardial friction…

…In heart failure, the interaction between the cardiac and renal axes may produce cardiorenal syndrome. Worsening renal function in the presence of persistent congestion is…

…or signs of heart failure Haemodynamic instability Myocardial ischaemic symptoms or electrocardiographic changes Thromboembolic complications, particularly stroke In ACS, AF may be present before the…

…pulmonary vascular obstruction is accompanied by limited cardiopulmonary reserve or other adverse comorbidity. The classification of acute PE comprises four clinically useful groups: High risk…

…more common in individuals with structural and ischemic heart disease. Assessment of ischemia on ECG is difficult in the presence of left bundle branch block…

…feasibility of complete revascularisation. The clinical evaluation includes: Symptom burden and functional limitation Evidence of heart failure Haemodynamic stability Diabetes status Renal dysfunction and other…

…all cause mortality. The excess risk is mediated by the combined effects of hyperglycaemia, hypertension, dyslipidaemia, obesity, smoking and other conventional risk factors, together with…

…control in atrial fibrillation, particularly when other therapeutic options cannot be pursued. Patients receiving digoxin may present with symptoms of digitalis toxicity, which manifests across…

…setting of acute or chronic heart failure are often better categorised as myocardial injury. Clinical Presentation and Symptoms Patients with Type 2 MI frequently present…

…Presence of potentially serious arrhythmias – due to the risk of circulatory collapse. Decompensated heart failure – due to the risk of circulatory collapse and arrhythmias Pulmonary…

…closer monitoring — the patient cannot feel pressure injury Peripheral neuropathy of other cause As above Severe pain Titrate the pressure up gradually Rheumatoid arthritis with…

…favorable prognosis, as compared with other forms of ventricular tachycardia. Mechanisms of ventricular tachycardia Ventricular tachycardia (VT) may emerge due to increased/abnormal automaticity, re…

…maximal heart rate. Ultimately, the specificity of exercise stress testing is lower in the elderly, as compared to younger individuals. Sensitivity, on the other hand…

…requiring dialysis is uncommon except in the presence of substantial pre existing CKD, particularly when congestive heart failure or other causes of ischaemic AKI coexist…

…treatment. The presence of ST segment changes or a positive troponin assay identifies patients in whom an invasive strategy is generally preferred over selective angiography…

…cardinal symptom, chest pain can be present [5]. Distinguishing Features: Pleuritic pain suggests pulmonary infarction, and a history of pain exacerbation with inspiration, along with…

…outcomes. The vast majority of infections with COVID 19 result in mild disease, with symptoms similar to seasonal flu (influenza) and other viral respiratory infections…

…choice of device therapy and also suggest whether other interventions (e.g. heart failure management, evaluation for coronary artery disease, etc .) are warranted. Management of…

…be more efficient to present the limb leads in their anatomically contiguous manner; that is, from left superior basal to right inferior. In other words…

Echocardiography The standard transthoracic echocardiographic examination This chapter presents a sequential series of images that comprise a complete standard echocardiographic examination. The image views are…

…NSTEMI) since they present with ST segment depressions on the 12 lead ECG (recall that ST segment depression is the hallmark of NSTE ACS/NSTEMI…

…the American Heart Association (AHA) and American College of Cardiology (ACC) will be in line with the European guidelines. Hence, this chapter will present the…

…the American Heart Association (AHA) and American College of Cardiology (ACC) will be in line with the European guidelines. Hence, this chapter will present the…

…Society of Echocardiography (BSE) have issued guidelines with very similar recommendations. Thus, an informal consensus regarding the standard survey exists, and it is presented in…

…setting of cardiac arrest, it is essential to reconfirm the rhythm in two leads if possible to distinguish true bradyarrhythmic or asystolic arrest from other…

…therapies in cardiovascular medicine, widely utilized for the management of hypertension, chronic ischemic heart disease, heart failure with reduced ejection fraction (HFrEF), and post myocardial…

…coronary vasodilation, whereas binding to the A1, A2B, and A3 receptors is responsible for the side effects of heart block, wheezing, and peripheral vasodilation, respectively…

…risk factor [2] . This change reflects robust evidence that female sex alone, in the absence of other comorbidities, does not significantly increase stroke risk. Conversely…

…universal definition of MI. Type 1 MI is generally related to an atherothrombotic event, whereas Types 2–5 MI have other mechanisms of myocardial ischaemia…

…table below shows a systematic history taking in patients presenting with chest pain (chest discomfort) or other symptoms suggestive of the five conditions listed above…

…heart sounds are important when present but are relatively insensitive findings. Some patients with subacute tamponade may initially remain normotensive or even hypertensive because of…

…major target—where MR activation promotes sodium transport—MRs are also present in cardiac myocytes, vascular smooth muscle, endothelial cells, macrophages, neurons and other tissues…

…An ECG lead is a graphical description of the electrical activity of the heart and it is created by analyzing several electrodes. In other words…

…cardiac arrest. Most of these have atherosclerotic heart disease (coronary artery disease) as the underlying cause. Other common causes are cardiomyopathy (hypertrophic or dilated), arrhythmogenic…

…microvascular disease and vasospasm may coexist with atherosclerosis or may be the dominant cause of ischaemia. Other mechanisms capable of obstructing coronary arteries include embolism…

…frequently, it may also present in individuals without identifiable cardiac disease. Contributing factors include pulmonary disorders, particularly obstructive pulmonary disease, the use of theophylline, and…

…left ventricular dysfunction, peripheral vascular disease and other manifestations of diffuse atherosclerosis. Percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) are revascularization procedures…

…impulse reaches the atrioventricular node when there are two pathways, one being refractory and the other capable of conducting the impulse, re entry may arise…

…definitions and recommendations presented in this chapter are in line with recent guidelines (2020) issued by the American Heart Association (AHA), American College of Cardiology …

…canine heart, it was shown that applying a 5 minute occlusion reflow cycle repeatedly to the circumflex artery before a 60 minute occlusion of the…

…not present with ST segment elevations on the conventional 12 lead ECG. These situations are as follows: Transmural ischemia located in the posterolateral portion of…

…of the stent, stent diameter less than 3 mm, long stent length Large thrombotic burdens increase procedural risk because thrombus can fragment, embolize to other…

…diminish or disappear. Others have no recognized history of angina or MI, making the distinction from primary dilated cardiomyopathy particularly difficult. When present, the clinical…

…result, pupils often dilate widely within 30–120 seconds of cardiac arrest and light reactivity is lost when cerebral blood flow ceases. In other words…

…other electronic equipment may also interfere with device function. The clinical consequences depend on the device, the patient's dependence on pacing, the presence of…