Categorized | Medical Studies

ECG: Supraventricular Tachycardia

Posted on 19 October 2008 by deel

SVT is a narrow complex tachycardia (narrow QRS) with HR of 140-250/min.

Symptoms include pounding chest, chest pain, shortness of breath (SOB), dizziness and loss of consciousness.

One has to recognize this ECG and perform immediate management.

Non-pharmacological maneuver:

  1. Vagal stimulation ( effective in 25% of cases)
  2. Valsava maneuver
  3. Cold water immersion

(google it yourself)

Pharmacological :

  1. Adenosine 6mg stat. Follow by 12mg after 5min and another 12mg after 5min (effective in 80%)

**The ECG showed that adenosine (effects that last for about 20s) that stuns the AV node (transient blockade) with widening of the QRS complex for a short period of time before the heart rate returns to normal at the rate of 75 beats perminute with the normal atrial sinus taking back the normal activity**


During treatment(pharmacological):

Post-treatment:

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