…left ventricular hypertrophy or abnormal LV filling supports the diagnosis Unlike HFpEF, objective evidence of structural or functional cardiac abnormality or raised natriuretic peptides is…

…the sinoatrial node) is a common finding in athletes and during sleep; in these scenarios, it should not be considered abnormal. On the other hand…

…determine whether the ECG waves and intervals are normal. This chapter will focus on the ECG waves in terms of morphology (appearance), durations and intervals…

…Note that 10% of wide complex tachycardias actually originate from the atria but the QRS complexes become wide due to abnormal ventricular depolarization (e.g…

…Patients without haemodynamic instability require more detailed prognostic evaluation using two complementary domains: Indicators of acute PE severity , including clinical findings, RV dysfunction on imaging…

…assessment of myocardial regions in myocardial perfusion imaging (MPI) is based on principles similar to those used in echocardiography. The 17 segment model of the…

…Figure 1. Characteristics of ischemic ST segment depressions on ECG. Current guideline criteria for ischemic ST segment depression: New horizontal or downsloping ST segment depressions…

…presents ECG findings during normal atrioventricular impulse transmission as well as ECG findings during pre excitation. Figure 1. Hallmarks of pre excitation on the ECG…

…wave amplitude is on average 3 mm in V2–V3 in females and it rarely exceeds 8 mm. Note that the amplitude of the T…

…effect on impulse conduction because digoxin slows impulse conduction. It is important to note that the association between ECG changes and the risk of arrhythmia…

…the ECG after a longer resting period is advised. 4. Which of the following describes a 'Black athlete repolarization variant' considered a normal ECG finding…

…infarction Definition and pathophysiology Myocardial infarction (MI) is a clinical diagnosis that integrates myocardial injury, evidence of acute myocardial ischaemia, electrocardiographic findings, cardiac biomarkers, imaging…

…examination finding that reflects brainstem (midbrain) function. In the context of cardiac arrest and the post resuscitation period, assessment of the PLR has long been…

…arise during the course of treatment. Even transient, self terminating AF during ST elevation myocardial infarction may indicate an increased long term risk of stroke…

…Note that 10% of wide complex tachycardias actually originate from the atria but the QRS complexes become wide due to abnormal ventricular depolarization (e.g…

…systemic inflammation Insulin resistance Abnormal adipokine signalling Endothelial dysfunction Dyslipidaemia A prothrombotic state Albuminuria and declining estimated glomerular filtration rate Development of type 2 diabetes…

…chronic lung disease or hypoxia, chronic thromboembolic obstruction, or a range of miscellaneous conditions. Because several mechanisms may coexist, diagnosis and classification must integrate haemodynamics…

…normal finding. The regurgitation results in blood flowing back from the pulmonary artery into the right ventricle during diastole. The most common cause of abnormal…

…This is also a normal finding. Abnormal (pathological) causes of sinus bradycardia In all other situations, sinus bradycardia should be regarded as a pathological finding…

…adult Abnormal relaxation (grade 1 dysfunction) Pseudonormal (grade 2 dysfunction) Reversible restrictive filling (grade 3 dysfunction) Irreversible restrictive filling (grade 4 dysfunction) E/A ratio…

…abnormal Density CW Doppler weak, slow deceleration variable dense, steep deceleration, early termination of diastolic flow Jet width colour Doppler small,, < 10 mm length…

…size and volume Women Men Normal range Mildly abnormal Moderately abnormal Severely abnormal Normal range Mildly abnormal Moderately abnormal Severely abnormal ATRIAL DIMENSIONS LA diameter…

…abnormal Density CW Doppler weak, slow deceleration variable dense, steep deceleration, early termination of diastolic flow Jet width colour Doppler small,, < 10 mm length…

ECG Introduction to ECG interpretation The QRS complex (ventricular complex): normal and abnormal configurations and intervals A complete QRS complex consists of a Q , R…

…imbalance ECG Definition and Pathophysiology Acquired long QT syndrome (LQTS) is characterised by an abnormal prolongation of the QT interval on the surface electrocardiogram (ECG…

…formerly termed Prinzmetal or variant angina, is myocardial ischaemia caused by transient abnormal vasoconstriction of one or more coronary arteries. Epicardial spasm produces a reversible…

…ECG diagnosis and management Atrial fibrillation is the most common abnormal tachyarrhythmia (only sinus tachycardia is more common). The prevalence of atrial fibrillation correlates strongly…

…The tests that reflect the synthetic function of the liver are the prothrombin time (INR) , the albumin and the bilirubin — and they become abnormal late…

…imaging have higher diagnostic performance. Its most consistent contemporary role is therefore the assessment of functional capacity, symptoms, haemodynamic responses, arrhythmias and prognosis, with diagnostic…

…be excluded. Diagnostics Echocardiography TTE is the principal initial imaging method for detecting LV thrombus and assessing the substrate on which it develops. The thrombus…

…majority of cases, the arrhythmia is self limiting; however, it may recur and, in some instances, persist for extended durations. As for any long standing…

…Post pericardiotomy syndrome. Acute transmural myocardial infarction. Rupture of the free ventricular wall. Neoplasms (particularly breast and lung cancer). Inflammatory conditions, such as rheumatoid arthritis…

…activation of the ventricles, conduction defects will typically cause abnormal ventricular activation (i.e. contraction). The significance of this will depend on the severity of…

…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 …

…through the bundle of His). Abnormal depolarization will consequently lead to abnormal repolarization. This explains the secondary ST T changes seen on premature ventricular complexes…

…Lane DA, Lip GYH. Evaluation of the HAS BLED, ATRIA, and ORBIT bleeding risk scores in atrial fibrillation patients on warfarin. Am J Med . 2016…

…and the European Association of Cardiovascular Imaging. In European heart journal cardiovascular Imaging 16 (3), pp. 233–270. DOI: 10.1093/ehjci/jev014. 2. Lang…

…Gonzalo; Baumgartner, Helmut et al. (2012): Guidelines on the management of valvular heart disease (version 2012). In European heart journal 33 (19), pp. 2451–2496…

Cardiology Definition and purpose Cardiovascular risk assessment estimates an individual’s probability of experiencing cardiovascular disease (CVD) over a defined period. SCORE2 and SCORE2 Older…

…and imaging technique. Coronary fistulae represent abnormal communications between a coronary artery and a cardiac chamber or vessel. Other congenital anomalies include anomalous origin of…

…despite often having a greater burden of cardiovascular and non cardiovascular comorbidity than patients with reduced EF. Pathophysiology Abnormal ventricular relaxation and increased filling pressures…

…Clinical Implications and Prognosis Mechanical and Diagnostic Impact LBBB causes extensive reorganization of left ventricular activation [2]. This leads to abnormal LV mechanical function [7…

…diagnosis depends on functional assessment. Coronary microvascular dysfunction (CMD) is characterized invasively by reduced CFR and increased microvascular resistance, measured by the index of microcirculatory…

…clinical patterns of AF—paroxysmal, persistent, long standing persistent and permanent—and is not determined solely by the apparent frequency or duration of documented episodes…

…focuses on practical diagnostic and therapeutic considerations, with recommendations aligned with current guidelines from both the American Heart Association (AHA) and American College of Cardiology…

…Hypocalcemia Causes of hypocalcemia Acute pancreatitis, pancreas surgery, alkalosis (hyperventilation), rhabdomyolysis, septicemia (sepsis), osteolytic cancer metastases, abnormal calcium absorption (gastrointestinal) and resorption (from primary urine…

…to the abnormal depolarization sequence of the right ventricle in RBBB, repolarization is also abnormal, leading to secondary ST T changes, which appear on the…

…rhythm. Recognizing these arrhythmias on the electrocardiogram (ECG) is of clinical importance. Diagnosis and management of ventricular tachycardia will be addressed in a separate chapter…

…got up. Holter ECG and longer rhythm monitoring Indications Palpitations, presyncope or syncope of suspected arrhythmic origin. Assessment of rate control in atrial fibrillation. Suspected…

…assessment of pH and the metabolic component, but it should not be regarded as fully interchangeable with an arterial sample [3]. Venous pH is on…

…The condition is associated with falls, aspiration, pressure sores, loss of function, longer length of stay, institutional care, readmission, cognitive decline and increased mortality [3…

…pallor paraesthesiae Neuroglycopenic symptoms An inadequate supply of glucose to the brain can cause: difficulty concentrating irritability or abnormal behaviour slurred speech visual disturbance confusion…

…abnormal Density CW Doppler weak, slow deceleration variable dense, steep deceleration, early termination of diastolic flow Jet width colour Doppler small,, < 10 mm length…

…which abnormal plasma cells produce misfolded immunoglobulin light chains [8, 19]. Light chains are directly toxic to cardiomyocytes, inducing the elaboration of high levels of…

…m² Abnormal urinalysis or renal imaging Risk of progression rises with proteinuria and depends on cause 2 60 mL/min/1.73 m² Abnormal urinalysis…

…of an acute MI remains a comprehensive clinical diagnosis based on patient symptoms, ECG changes, highly sensitive biochemical markers, and information gleaned from various imaging…

…tomography (OCT) can reveal lesions that are not apparent on conventional angiography. Coronary vasomotor disorders may involve epicardial spasm or abnormalities of the coronary microcirculation…

…which death occurs before biomarkers can be obtained or become abnormal, in the presence of symptoms suggestive of ischaemia and presumed new ischaemic ECG changes…

…extends from the J point to the onset of the T wave. Because of the long duration of the plateau phase most contractile cells are…

…men and women, respectively, should be considered abnormal. A common cause of abnormally large T waves is hyperkalemia, which results in high, pointed and asymmetric…