…the presence of CRT, the type and location of surgery, and the anticipated current pathway. In a pacing dependent patient, inhibition of pacemaker output may…

…pacemaker. Sensing is used to inhibiting or triggering pacing pulses. The inhibition of pacing is appropriate when there is intrinsic cardiac activity; the presence of…

…The risk of cardiogenic shock and cardiac arrest is high and pharmacological interventions are frequently futile. It is often necessary to establish a transcutaneous pacemaker…

…auerus . This usually affects drug users (intravenous addiction), elderly patients with altered valves, patients with valve prostheses or other cardiac devices (pacemaker, CRT, ICD). In…

…leads [7]. These stricter parameters correlate more closely with abnormal LV mechanical function and the potential benefit of resynchronization pacemaker therapy [7]. R Wave Peak…

…and sudden cardiac death is most often determined by the presence and severity of underlying cardiovascular disease. Conduction disease and the need for pacemaker therapy…

…Cardiac arrhythmias can be subdivided into the following categories: Bradyarrhythmia s (bradycardia): arrhythmias commonly due to dysfunctional automaticity in pacemaker cells or blocking of impulses…

…a pacemaker presents with tachyarrhythmia and the QRS complexes appear with a left bundle branch block pattern, always suspect pacemaker mediated tachycardia. CRT devices (cardiac…

… the ECG presents the electrical activity of the atrial and ventricular myocardium. Automaticity of pacemaker cells The automaticity of the cells in the sinoatrial node…

…includes pacemaker therapy. Treatment of AV block in the acute setting Treatment in the acute setting is directed at managing bradycardia and reduced cardiac output…

…Adenosine is an endogenous nucleoside present throughout the body that interacts with G protein coupled A1 receptors located on the extracellular surface of cardiac cells…

…unnecessary unless the cardiac output is inadequate, hypotension is present, or secondary arrhythmias result from the slow rate. In the setting of bradyarrhythmic or asystolic…

…These residual tissues, persisting from cardiac embryogenesis, are capable of exhibiting markedly increased automaticity, thereby serving as ectopic pacemaker foci. The term “ectopic” is often…

…waves were present on previous recording, the amplitude must be increased in order to suggest ischemia. Inverted U waves are even more typical of ischemia…

…indicative of cerebral anoxia or brain death and constitute an adverse prognostic sign. Notably, the presence of dilated, nonreactive pupils 48 hours post cardiac arrest…

…al. ). Figure 1 presents data from the Swedish Cardiac Arrest Registry, which has recorded causes of cardiac arrest with a separate category for cardiac etiologies…

…reveal pneumothorax (highlighted by a lack of lung tissue) and its impact on cardiac function. Clinically, patients may present with: Absent breath sounds on the…

…the term perimyocarditis . Hemodynamic effects of pericardial effusion and cardiac tamponade Intrapericardial pressure increases as fluid accumulates in the pericardial space. Intrapericardial pressure may reach…

…on the right side can compromise venous return to the right ventricle. Therefore, in the presence of a tamponade, chest compressions have limited efficacy. Furthermore…

…axis is a valuable diagnostic step. While a normal ECG does not definitively exclude PH, the presence of RAD significantly raises the clinical suspicion [9]

…of them are myxomas and next papillary fibroelastoma is most common. Among children, rhabdomyoma is most common. Myxoma Myxoma is the most common primary cardiac…

…hours after the onset of infarction. The presence of such Q waves should raise suspicion of ischemia/infarction as the underlying cause. In cardiac arrest…

…These assays, referred to as high sensitive cardiac troponin, may actually detect the presence of troponins in most normal persons. In 2017 it was possible…

…one of the following criteria present: haemodynamic instability or cardiogenic shock recurrent or ongoing chest pain refractory to medical treatment life threatening arrhythmias or cardiac…

…is caused by partial occlusion of the artery (i.e. coronary blood flow is not completely obstructed). NSTE ACS typically presents with ST segment depressions…

…In contrast, haemodynamically stable patients without ST segment elevation after successful resuscitation from out of hospital cardiac arrest should not routinely undergo immediate angiography. A…

…without the presence of acute atherothrombosis. Type 3 MI: Describes cardiac death in patients with symptoms suggestive of myocardial ischaemia and presumed new ischaemic ECG…

…dissection. Coronary embolism of cardiac or non cardiac origin. Oxygen supply–demand mismatch, including demand related events in the presence of fixed coronary disease. More…

…or a very strong clinical suspicion. 3. Give intravenous calcium in the presence of hyperkalaemic ECG changes or arrhythmia. 4. Shift potassium into the cells…

…Cardiac toxicity presents as various arrhythmias, ranging from bradycardias related to enhanced vagal effect to life threatening tachyarrhythmias. Evaluation and Physical Examination Physical examination of…

…electrocardiographic changes, and with or without acute elevations in cardiac troponin concentrations. Based on the presenting electrocardiogram (ECG) and the presence of troponin elevation, ACS…

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

…further reducing myocardial workload. 1 The pharmacokinetic profile of levosimendan is modulated by the presence of an active metabolite, which exerts sustained hemodynamic effects for…

…HF) in the presence of a left ventricular ejection fraction (LVEF) of ≥50%, accompanied by objective evidence of structural and/or functional cardiac abnormalities and…

…acute phase protein — a normal ferritin does not exclude iron deficiency in the presence of inflammation Transferrin saturation 15–50 % < 15 % indicates iron deficiency…

…pleural incision may expose cardiac antigens and initiate an inflammatory response. The presence of antibodies directed against cardiac tissue, the latent interval of several weeks…

…the broader assessment of peripheral arterial and aortic disease; planned surgery, especially carotid endarterectomy (CEA), coronary artery bypass grafting (CABG), or major non cardiac surgery…

…right atrial pressure. Levosimendan represents a distinct class of inodilator. It enhances myocardial contractility and induces peripheral vasodilation through cardiac myofilament calcium sensitisation. This process…

…presence of symptoms alone is insufficient. Anaemia and pulmonary, renal, thyroid or hepatic disease may produce a similar symptom complex; in the absence of cardiac…

…on the magnitude of the stressor, the presence of non cardiac comorbidities, and the extent of underlying coronary artery disease (CAD) and structural cardiac abnormalities…

…presence of heart failure. Clinical Presentation and Symptoms Patients with acquired QT prolongation and drug induced TdP typically present with near syncope, syncope, or cardiac…

…neither of these abnormalities in the presence of abnormal clinical risk assessment. Low risk PE is characterized by clinical low risk features, negative cardiac biomarkers…

…and how PCI was performed. The need for non cardiac surgery. The presence of an indication for oral anticoagulation (OAC). Clinical context and treatment objectives…

…this combination is associated with a worse prognosis. VA may occur in the presence of obstructive coronary artery disease (CAD), in non obstructive coronary arteries…

…possibility of thrombolytic treatment. Cardiac and pulmonary complications Acute hypertension may precipitate myocardial ischemia or infarction, acute heart failure, or pulmonary oedema. Patients may present…

…the interaction between the cardiac and renal axes may produce cardiorenal syndrome. Worsening renal function in the presence of persistent congestion is particularly associated with…

…R wave in V5 and V6. Secondary ST T changes occur invariably in the presence of LBBB. The following ECG criteria and characteristics are used…

…of perfusion are essential. The abrupt arterial obstruction may result from progression of peripheral arterial disease, cardiac or aortic embolisation, acute aortic dissection, thrombosis of…

…multiple variables, including the number of lesions, their location, and specific characteristics such as bifurcations, chronic total occlusions (CTOs), calcification, and thrombus presence. These factors…

…particularly when combined with metabolic imaging. Contribute to assessment of cardiac inflammation, infective endocarditis, and cardiac amyloidosis using appropriate radiopharmaceuticals. Functional perfusion imaging primarily identifies…

…symptoms, and ECG changes. Although the risk of cardiac arrest is very small, personnel must be well trained in resuscitation. Subject preparations The procedure must…

…present Markedly reduced cardiac output in severe cases Cardiogenic shock in the most advanced presentations The symptoms of RVI commonly occur in the setting of…

…Figure 1 presents all relevant parts of the conduction system and their source of blood supply. Figure 1. The component of the cardiac conduction system…

…with reduced left ventricular function (e.g. defined as ejection fraction <40 %) are at high risk of sudden cardiac arrest. Idiopathic ventricular tachycardia (IVT) Ventricular…

…hinges entirely on the presence of myocardial necrosis. NSTEMI is confirmed by a typical rise and/or fall of high sensitivity cardiac troponin (hs cTn…

…ACS, AF may be present before the acute event, detected for the first time during its management, or arise during the course of treatment. Even…

…HFrEF. Clinical evaluation should define: The severity of symptoms and functional limitation. Evidence of congestion or fluid retention. The presence of precipitating or aggravating conditions…

…and cardiac troponin findings. The default treatment after ACS, whether or not PCI is performed, is 12 months of DAPT unless there is a contraindication…

…can be obtained or become abnormal, in the presence of symptoms suggestive of ischaemia and presumed new ischaemic ECG changes. The distinction between myocardial injury…

…present Factors that may be contributing to elevated blood pressure Other cardiovascular risk factors and relevant comorbidities Evidence of hypertension mediated organ damage Existing cardiac…