Paroxysmal Supraventricular Tachycardia Pathophysiology, Diagnosis, and Management

作者：Al Zaiti Salah S^*; Magdic Kathy S

来源：Critical Care Nursing Clinics of North America, 2016, 28(3): 309-+.

DOI：10.1016/j.cnc.2016.04.005

• Paroxysmal supraventricular tachycardia
• Wolff-Parkinson-White syndrome
• Supraventricular arrhythmia
• Accessory pathways

Paroxysmal supraventricular tachycardia (PSVT) is a well-known and thoroughly studied clinical syndrome, characterized by regular tachycardia rhythm with sudden onset and abrupt termination. Most patients present with palpitations and dizziness, and their electrocardiogram demonstrates a narrow QRS complex and regular tachycardia with hidden or inverted P waves. PSVT is caused by re-entry due to the presence of inhomogeneous, accessory, or concealed conducting pathways. Hemodynamically stable patients are treated by vagal maneuvers, intravenous adenosine, diltiazem, or verapamil, hemodynamically unstable patients are treated by cardioversion. Patients with symptomatic and recurrent PSVT can be treated with long-term drug treatment or catheter ablation.

• 出版日期2016-9