Cardiac Arrhythmia Essay; Cardiac Arrhythmia Essay. 1382 Words 6 Pages. The heart is one of the most important organs in an organism’s body, no matter if they are aquatic, amphibian, or a mammal. This super organ works automatically, able to pump massive amounts of oxygen rich blood through the body by means of electrical impulses and the opening and closing of valves within its many layers.
Anti-arrhythmic drugs can be classified clinically into those that act on supraventricular arrhythmias (e.g. verapamil hydrochloride), those that act on both supraventricular and ventricular arrhythmias (e.g. amiodarone hydrochloride), and those that act on ventricular arrhythmias (e.g. lidocaine hydrochloride).
Ventricular arrhythmias are abnormal heartbeats that originate in your lower heart chambers, called ventricles. These types of arrhythmias cause your heart to beat too fast, which prevents oxygen-rich blood from circulating to the brain and body and may result in cardiac arrest.
Ventricular arrhythmias include ventricular fibrillation and ventricular tachycardia. Arrhythmias are due to problems with the electrical conduction system of the heart. Arrhythmias may also occur in children, however, the normal range for the heart rate is different and depends on age.
Automatic detection and classification of life-threatening arrhythmia plays an important part in dealing with various cardiac conditions. In this paper, a novel method for classification of various types of arrhythmia using morphological and dynamic features is presented.
Ventricular tachycardia is a highly nuanced arrhythmia which originates in the ventricles. A wide range of conditions may cause ventricular tachycardia and the ECG is as nuanced as are those conditions. Regardless of etiology and ECG, ventricular tachycardia is always a potentially life-threatening arrhythmia which requires immediate attention.
Wolf published a classification of ventricular arrhythmias, assigning risk to advanced grades. This proposal, as those from others, took into account arrhythmias of ventricular origin only. The major concern about the Lown classification, however, relates to the consequences of maximal grading: a.
Arrhythmias that originate from the ventricle may originate from the distal His-Purkinje system or ventricular myocardium. The site of origin within the ventricle further defines some arrhythmias within the ventricle. Examples include right ventricular out-flow tract ventricular tachycardia and bundle branch re-entry ventricular tachycardia.
Atrial fibrillation is the most common form of cardiac arrhythmia; it involves the two upper chambers of the heart known as the atria. During atrial fibrillation the normal pulses generated by the sinoatrial node are overcome by the electrical pulses that are generated in the atria and pulmonary veins, which leads to irregular impulses being conducted to the ventricles, and therefore irregular.
Classification Of Various Cardiac Abnormalities Biology Essay The proposed undertaking aims in developing an machine-controlled system for the categorization of assorted cardiac abnormalcies utilizing Neural Network classifiers. Any variableness in the ECG signal form (Arrhythmia) is an index of a fatal cardiac disease.
Ventricular Tachycardia. Ventricular tachycardia is a condition in which the SA node no longer controls the beating of the ventricles. Instead, other areas along the lower electrical pathway take over the pacemaking role. Since the new signal does not move through your heart muscle along the regular route, the heart muscle does not beat normally. Your heartbeat quickens, and you feel as if.
Furthermore, some classes and even some specific drugs within a class are effective with only certain types of arrhythmias. Therefore, attempts have been made to classify the different antiarrhythmic drugs so by mechanism. Although different classification schemes have been proposed, the first scheme (Vaughan-Williams) is still the one that most physicians use when speaking of antiarrhythmic.
Although isolated premature ventricular contractions may be seen in as many as 15% of normal newborns, one third of normal adolescents, and two thirds of adolescents and adults with repaired heart disease, sustained ventricular arrhythmias are relatively rare in young normal hearts. Sudden cardiac health is rare in young normal hearts, although there is an increased incidence in dilated.
Cardiac Arrhythmia is an anomaly in the Heart which can be diagnosed with the help of Electrocardiogram (ECG) signal. ECG signal is a diagrammatic representation of the cardiac signal, which is most important biomedical signal, taken for the feature extraction. Since it is very difficult to analyse the ECG signal due to the size, noise and changes in the signal, automatic system for ECG signal.
Cardiac dysrhythmia (or arrhythmia) is a disturbance in the rate of cardiac muscle contractions, or any variation from the normal rhythm or rate of heart beat. The term encompasses abnormal regular and irregular rhythms as well as loss of rhythm. Cardiac dysrhythmias are found in a vast range of conditions and may be defined in a number of ways, including by site of origin (e.g.
Ventricular tachycardia (V-tach or VT) is a type of regular, fast heart rate that arises from improper electrical activity in the ventricles of the heart. Although a few seconds may not result in problems, longer periods are dangerous. Short periods may occur without symptoms, or present with lightheadedness, palpitations, or chest pain. Ventricular tachycardia may result in ventricular.
Ventricular tachycardia refers to a wide QRS complex heart rhythm — that is, a QRS duration beyond 120 milliseconds — originating in the ventricles at a rate of greater than 100 beats per minute.
If the rhythm continues beyond 30 seconds, it is considered sustained VT.Cardiac Activity and Ventricular Tachycardia Essay. The final method to classify VT is reviewing symptoms. When a patient is in VT, the loss of co-ordinated atrial contraction and high heart rate can impair cardiac output (CO), and therefore, they will not have a palpable pulse. This is known as Pulseless VT. Pulseless VT.
This essay will examine the relationship between cardiac activity and the Ventricular Tachycardia (VT) waveform, and discuss how defibrillation may terminate this dysrhythmia, allowing the heart to return to a normal rhythm. The typical healthy adult heart will have a resting heart rate of between 60 and 100 beats per minute (Saladin, 2011). When the heart beats abnormally fast, it pumps less.