Understanding the Electrocardiogram (ECG) of Supraventricular Tachycardia (SVT) is crucial for healthcare professionals. SVT is a rapid heart rhythm originating above the ventricles. It includes various types such as atrial fibrillation, atrial flutter, and paroxysmal supraventricular tachycardia (PSVT). On an ECG, SVT is typically characterized by a rapid heart rate, often exceeding 100 beats per minute, with narrow QRS complexes. Identifying SVT involves looking for specific patterns like the absence of distinct P waves or the presence of abnormal P waves, which may be hidden within the preceding T waves.
The ECG of a patient with SVT can show a sudden onset and termination of rapid heartbeats, known as paroxysmal events. This can be distinguished from other types of tachycardia by the regularity of the rhythm and the appearance of the QRS complexes. Accurate interpretation of the ECG is essential for diagnosing the type of SVT and determining the appropriate treatment. Treatments may include vagal maneuvers, medications, or in some cases, electrical cardioversion.
Recognizing SVT on an ECG is critical for timely intervention, preventing complications, and improving patient outcomes. Understanding the nuances of SVT ECG patterns allows for effective management and tailored therapeutic approaches.