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Ventricular tachycardia: disorganized contractions
Tachycardia refers to an abnormally fast heart rate. It can originate in either the atria or the ventricles. Here, we will focus on the latter condition: ventricular tachycardia. The heart is an organ composed of four chambers: two atria and two ventricles, located on the left and right sides. Each ventricle serves a specific function.…
5 minutes Reading time -
Ventricular extrasystoles are premature heart contractions
The heart is an organ composed of four chambers: two atria and two ventricles, located on the left and right sides. Each ventricle serves a specific function. The right ventricle contracts and pushes blood into the pulmonary arteries. The left ventricle contracts and pushes blood into the aorta. The oxygen-rich blood is then delivered to…
3 minutes Reading time -
Ventricular fibrillation: a leading cause of cardiac arrest
The heart is an organ composed of four chambers: two atria and two ventricles, located on the left and right sides. The ventricles, which are involved in this disorder, are the lower chambers. Their function is to contract to pump blood out of the heart and into the arteries. The atria and ventricles contract in…
4 minutes Reading time -
Junctional tachycardia: the heart in the fast lane
The heart is a muscle that works tirelessly to pump blood throughout our entire body. It consists of four chambers – two atria and two ventricles – and is controlled by a complex electrical system. Like a conductor leading an orchestra, this system sends electrical signals that trigger the rhythmic contraction of the atria and…
4 minutes Reading time -
Junctional tachycardia: the heart in the fast lane
The heart is a muscle that works tirelessly to pump blood throughout our entire body. It consists of four chambers – two atria and two ventricles – and is controlled by a complex electrical system. Like a conductor leading an orchestra, this system sends electrical signals that trigger the rhythmic contraction of the atria and…
4 minutes Reading time -
Atrial fibrillation and flutter: when the heart beats too quickly
The heart is a muscle that works tirelessly to pump blood throughout our entire body. It consists of four chambers – two atria and two ventricles – and is controlled by a complex electrical system. Like a conductor leading an orchestra, this system sends electrical signals that trigger the rhythmic contraction of the atria and…
6 minutes Reading time -
Atrial extrasystoles: premature heart contractions
The heart is a muscle that works tirelessly to pump blood throughout our entire body. It consists of four chambers – two atria and two ventricles – and is controlled by a complex electrical system. Like a conductor leading an orchestra, this system sends electrical signals that trigger the rhythmic contraction of the atria and…
3 minutes Reading time -
Early repolarization syndrome
Early repolarization syndrome can be identified by abnormalities on the electrocardiogram, described below, along with clinical signs such as unexplained syncope, ventricular fibrillation or sudden cardiac death. The ECG depicts heartbeats as waves. Each heartbeat is divided into several phases and each one is assigned a letter: P, Q, R, S and T. Early repolarization…
2 minutes Reading time -
Long QT syndrome
Long QT syndrome is a disorder that causes electrical dysfunction in the heart. It is characterized by an abnormally long heartbeat interval on the electrocardiogram (ECG or EKG). An ECG depicts heartbeats as waves. Each heartbeat is divided into several phases and each one is assigned a letter: P, Q, R, S and T. Long…
4 minutes Reading time -
Brugada syndrome
Brugada syndrome is a rare genetic disorder, first identified in 1992, which results in a “purely electrical” dysfunction of the heart. It is marked by abnormalities on the electrocardiogram, which are present to varying extents, and an increased risk of cardiac arrest due to ventricular fibrillation.This disorder primarily affects men and is usually diagnosed in…
4 minutes Reading time
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