What is 5 seconds of pacs in a row called? is it normal? heart checked with echo and ecg

SVT: Repetitive premature atrial contractions are a form of supraventricular tachycardia (SVT) of which there are many forms. While not normal, it's generally more an annoyance than a concern & occur in normal hearts. A normal echo rules out most serious causes. Avoid stimulants (tobacco, caffeine, drugs). If a frequent problem, medicines can suppress them, so you would need to see your primary doctor.