Introduction to Climate change. Many people make Climate Change and Global Warming a scary and difficult thing to understand, but itâs not.Scientists have warned that the world's climate has changed a lot, and has affected many living and non-living things.ntroduction to Climate change. Many people make Climate Change and Global Warming a scary and difficult thing to understand, but itâs not.
Atrial or Supraventricular Tachycardia (SVT) Atrial or Supraventricular tachycardia (SVT) is a fast heart rate that starts in the upper chambers of the heart. Some forms are called paroxysmal atrial tachycardia (PAT) or paroxysmal supraventricular tachycardia (PSVT). How it happens.
SVT is almost never life-threatening and treatment outcomes are excellent. It causes intermittent symptoms of heart racing and may cause chest pain, shortness of breath, lightheadedness, and/or fainting. The episodes may or may not be related to exercise. Although the set-up for SVT is often present at birth, the symptoms can start at any time.