Theelectrocardiographic findings in 11 leads in 48 patients is depicted in Table 1. The patients showed abnormalities in unipolar, bipolar and augmented limb leads with ischemia characterized by ST elevation, depression, T wave inversion, R wave greater than S wave, hyperacute T waves and prior MI characterized by presence of pathological Q waves, QS complex, R ≥0.04 s and R/S≥1 in V1-V2, Positive T, Loss of R voltage. The maximum percentage of patients exhibited STE in leads I (47.9%), aVL (45.8%)
contains P, Q, R, S, and T waves that all occur at specific points and form a defined shape. When there is an abnormality in these waves, physicians know the heart is not functioning correctly and they attempt to diagnose the problem. One abnormality is called sinus arrest. Sinus arrest means the SA node is not firing the initial action potential to depolarize the rest of the heart.
waveforms accurately, one can identify rhythm disturbances, conduction abnormalities, and electrolyte imbalances. An ECG helps in diagnosing and monitoring such conditions as acute coronary syndromes and pericarditis. This was first observed by Waller in 1889 using his pet bulldog and later the technology was enhanced by Einthoven in1903 who introduced many concepts which are still used today including the labeling of the various waves, defining some of the standard recording sites using the arms and
Choice “D” is the best answer choice. Patients with restrictive cardiomyopathy (RCM) often present at an advanced stage of disease with the pronounced cardiopulmonary symptoms of CHF. Patients usually complain of gradually worsening shortness of breath, progressive exercise intolerance, and fatigue. Fatigue and weakness are results of decreased stroke volume and cardiac output. Paroxysmal nocturnal dyspnea may be reported. Right-sided congestive features are often prominent and patients may have
More recent cases and retrospective reviews suggested that the ST segment elevation or depression, T wave inversion and prolonged QT interval were commonly identified (Chin, Branch & Becker 2005; Malik et al. 2015; Shoukat et al. 2013; Waller et al. 2013). In addition, case studies claimed that these observed abnormalities predominantly occurred in the anterior and lateral leads (Franco et al. 2010; Waller et al. 2013), suggesting impaired ventricular repolarisation
ST depression less common findings. Sometimes may present with QT interval prolongation, T wave inversion or abnormal Q waves. Cardiac biomarkers: troponin typically moderately elevated while CK-MB normal or mildly elevated in SICM Brain natriuretic peptide (BNP) or pro- BNP levels are elevated. Mayo clinic diagnostic criteria, all four of which are required
A 65-year-old male is admitted to the telemetry unit after suffering a non-ST elevation myocardial infarction (NSTEMI) confirmed by elevated troponin levels. The ECG was seen to have additional abnormalities, illustrated in the image. His medical history is significant for chronic kidney disease, hypertension, type 2 diabetes mellitus, hyperlipidemia, and benign prostatic hypertrophy. His medications include spironolactone, lisinopril, metformin, amlodipine, and finasteride. Physical examination
order to boost potassium excretion. However, compensatory mechanisms may become overwhelmed, and result in hyperkalemia (Raymond & Wazny, 2010). Potassium plays an important role in nerve and muscle function. As a result of this role, abnormalities in serum potassium may trigger membrane excitability and considerable nerve, muscle and cardiac dysfunction leading to ventricular arrhythmias and subsequently sudden cardiac death. It is estimated that between 1% and 10% of patients admitted
Once a comprehensive history was taken further tests could be carried out. An ECG was completed showing sinus tachycardia with T-wave inversion. Blood tests were also carried out showing a raised d-dimer of more than 4000, whereas a normal result is less than 500 (Huisman & Klok, 2013). The troponin was 0.08, which is double the normal level (Brown & Edwards, 2012). The chest x-ray
Congenital heart disease’s incidence depends on how the population is studied. With better diagnosis through the introduction of echocardiography the incidence figures of congenital heart diseases has raised from the range of 5-8 per 1000 live births to 8-12 per 1000 live births (Hoffman JIE, 2013). All the countries have similar incidence of congenital heart disease. Some minor differences in types of congenital heart disease by country are there. China and Japan for example have a higher