Sinoatrial Nodal Reentry Tachycardia (SANRT) is a medical condition characterized by the rapid and irregular beating of the heart. It is a type of supraventricular tachycardia (SVT) that originates from abnormal electrical pathways in the sinoatrial node, the primary pacemaker of the heart.
The sinoatrial node is responsible for generating electrical signals that regulate the heart's rhythm. In individuals with SANRT, there is an abnormal short circuit in the electrical system of the heart, leading to a rapid reentry of electrical impulses within the sinoatrial node. This reentry loop causes the heart to beat faster than the normal rate, resulting in a tachycardia.
Symptoms of SANRT may include palpitations, a rapid or irregular heartbeat, dizziness, shortness of breath, chest discomfort, or fainting. These symptoms can be intermittent and may last for a few seconds to several hours. The frequency and duration of episodes can vary from person to person.
Diagnosis of SANRT involves a thorough medical history review, physical examination, and various cardiac tests such as electrocardiogram (ECG), echocardiogram, or electrophysiological studies to identify the origin and nature of the abnormal electrical pathway.
Treatment options for SANRT may involve lifestyle modifications, medications to control heart rate and rhythm, and in certain cases, catheter ablation to eliminate the abnormal circuit causing the reentry tachycardia.
It is important for individuals with SANRT to seek medical attention to prevent potential complications such as heart failure, stroke, or other arrhythmias that can arise due to the rapid heart rate and irregular rhythm.
