To try and answer this question Iâve collected average electricity prices from 17 countries around the world, and converted them to $/kWh (US). All the data is based on average prices and exchange rates for 2011, and Iâve graphed them in US cents/kWh to keep it tidy.anadian electricity is cheap at 10 US cents per kilowatt hour, which is reflected in their high average electricity usage. US electricity prices at 0.12 $/kWh are also quite cheap internationally.
1 When the heart canât pump enough blood to meet the bodyâs needs, blood flow slows which can cause clots to form. 2  Atrial fibrillation, the most common type of arrhythmia, or irregular heartbeat. 3  Atrial fibrillation can cause blood to pool in the upper chambers of the heart and can cause clots to form.
â Madeline, Florida. There are many reasons why fluid can build up around the heart, a condition that is medically known as pericardial effusion. It is often associated with pericarditis, which is an inflammation of the pericardium, a double-layered membrane sac that surrounds the heart and protects it.