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Paroxysmal Supraventricular Tachycardia: Multimedia
Updated: Aug 12, 2009
Multimedia
 | Media file 1: Sinus tachycardia. Note that the QRS complexes are narrow and regular. The patient's heart rate is approximately 135 bpm. P waves are normal in morphology. |
 | Media file 2: Atrial tachycardia. The patient's heart rate is 151 bpm. P waves are upright in lead V1. |
 | Media file 3: Multifocal atrial tachycardia. Note the different P-wave morphologies and irregularly irregular ventricular response. |
 | Media file 4: Atrial flutter. The patient's heart rate is approximately 135 bpm with 2:1 conduction. Note the sawtooth pattern formed by the flutter waves. |
 | Media file 5: Atrial fibrillation. The patient's ventricular rate varies from 130-168 bpm. Rhythm is irregularly irregular. P waves are not discernible. |
 | Media file 6: Atrioventricular nodal reentrant tachycardia. The patient's heart rate is approximately 146 bpm with a normal axis. Note the pseudo S waves in leads II, III, and aVF. Also note the pseudo R' waves in V1 and aVR. These deflections represent retrograde atrial activation. |
 | Media file 7: Same patient as in Media file 6. Patient is in sinus rhythm following atrioventricular nodal reentrant tachycardia. |
 | Media file 8: Image A displays the slow pathway and the fast pathway, with a regular impulse being conducted through the atrioventricular node. Image B displays a premature impulse that is conducted in an anterograde manner through the slow pathway and in a retrograde manner through the fast pathway, as is seen in typical atrioventricular nodal tachycardia. Image C displays the premature impulse conducting in a retrograde manner through the pathway and the impulse reentering the pathway with anterograde conduction, which is seen commonly in patients with atypical atrioventricular nodal tachycardia. |
 | Media file 9: Wolff-Parkinson-White pattern. Note the short PR interval and slurred upstroke (delta wave) to the QRS complexes. |
 | Media file 10: The left image displays the atrioventricular node with the accessory pathway. The impulse is conducted in an anterograde manner in the atrioventricular node and in a retrograde manner in the accessory pathway. This circuit is known as orthodromic atrioventricular reentrant tachycardia and can occur in patients with concealed accessory tracts or Wolff-Parkinson-White syndrome. The right image displays the impulse being conducted in an anterograde manner through the accessory pathway and in a retrograde manner via the atrioventricular node. This type of circuit is known as antidromic atrioventricular reentrant tachycardia and only occurs in patients with Wolff-Parkinson-White syndrome. Both patterns may display retrograde P waves after the QRS complexes. |
 | Media file 11: Orthodromic atrioventricular reentrant tachycardia. This patient has Wolff-Parkinson-White syndrome. |
 | Media file 12: The left panel depicts antidromic atrioventricular reentrant tachycardia. The right panel depicts sinus rhythm in a patient with antidromic atrioventricular reentrant tachycardia. Note that the QRS complex is an exaggeration of the delta wave during sinus rhythm. |
 | Media file 13: Atrial fibrillation in a patient with Wolff-Parkinson-White syndrome. Note the extremely rapid ventricular rate and variability in QRS morphology. Several minutes later, the patient developed ventricular fibrillation. |
More on Paroxysmal Supraventricular Tachycardia |
| Overview: Paroxysmal Supraventricular Tachycardia |
| Differential Diagnoses & Workup: Paroxysmal Supraventricular Tachycardia |
| Treatment & Medication: Paroxysmal Supraventricular Tachycardia |
| Follow-up: Paroxysmal Supraventricular Tachycardia |
 Multimedia: Paroxysmal Supraventricular Tachycardia |
| References |
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Further Reading
Keywords
paroxysmal supraventricular tachycardia, PSVT, supraventricular tachycardia, SVT, multifocal atrial tachycardia, MAT, tachyarrhythmia, atrial fibrillation, AF, conduction pathway disturbance, conduction pathway abnormality, conduction pathway anomaly, dysrhythmia, heart condition, heart rhythm problem, atrial tachyarrhythmia, atrioventricular tachyarrhythmia, AV tachyarrhythmia, sinus tachycardia, inappropriate sinus tachycardia, IST, sinusnodal reentranttachycardia, SNRT, atrial tachycardia, atrial flutter, AV tachyarrhythmias, AV nodal reentrant tachycardia, atrioventricular nodal reentrant tachycardia, AVNRT, atrioventricular reentrant tachycardia, AV reentrant tachycardia, AVRT, junctional ectopic tachycardia, JET, nonparoxysmal junctional tachycardia, NPJT, heartfailure, pulmonary edema, myocardial ischemia, myocardial infarction, syncope, sudden death, tachycardia-induced cardiomyopathy, WPW syndrome
