junctional tachycardia - определение. Что такое junctional tachycardia
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Что (кто) такое junctional tachycardia - определение


Junctional tachycardia         
  • Junctional tachycardia (rate about 115/min) dissociated from a slightly slower [[sinus tachycardia]] (rate about 107/min) producing one form of double tachycardia; pairs of ventricular capture (C) beats (5th, 6th, 19th, and 20th beats); see laddergram.
TYPE OF HEART ARRHYTHMIA
Junctional tachycardia is a form of supraventricular tachycardia characterized by involvement of the AV node. It can be contrasted to atrial tachycardia.
Junctional ectopic tachycardia         
  • JET in a 2-month-old girl following cardiac surgery. In this case the [[right bundle branch block]] was present during tachycardia and during normal sinus rhythm.
RARE SYNDROME WITH IRREGULAR BEATING OF THE HEART IN PATIENTS RECOVERING FROM HEART SURGERY
Junctional Ectopic Tachycardia; Tachycardia, ectopic junctional; His bundle tachycardia; Ectopic junctional tachycardia
Junctional ectopic tachycardia (JET) is a rare syndrome of the heart that manifests in patients recovering from heart surgery. It is characterized by cardiac arrhythmia, or irregular beating of the heart, caused by abnormal conduction from or through the atrioventricular node (AV node).
Supraventricular tachycardia         
  • Atrial fibrillation: Red dots show atrial fibrillation activity.
  • A 12-lead ECG showing paroxysmal supraventricular tachycardia at about 180 beats per minute.
  • Mechanisms of supraventricular tachycardias
ABNORMALLY FAST HEART RHYTHM ARISING FROM IMPROPER ELECTRICAL ACTIVITY IN THE UPPER PART OF THE HEART
Tachycardia, supraventricular; AV re-entrant arrhythmia; Narrow complex tachycardia; Narrow QRS complex tachycardia; Narrow QRS tachycardia; Supra Ventricular Tachyardia; Orthodromic AVRT; Antidromic AVRT; Sinoatrial node reentrant tachycardia; Circus movement tachycardia; Junctional reciprocating tachycardia; Persistent junctional reciprocating tachycardia; Supraventricular takycardia; Supraventricular arrhythmia
Supraventricular tachycardia (SVT) is an umbrella term for fast heart rhythms arising from the upper part of the heart. This is in contrast to the other group of fast heart rhythms – ventricular tachycardia, which start within the lower chambers of the heart.