A PDA is an abnormal opening between the aorta and the pulmonary artery. ... Soooo, the aorta is where the pulmonary artery should be, and the pulmonary artery is where the aorta should be. ... Such patients may often have coronary artery disease, and the sudden death may be associated with an acute ischemic event, including myocardial infarction or angina, but it may also occur in the absence of myocardial ischemia. ...

• Word Count: 892
• Approx Pages: 4
• Grade Level: High School

Arrhythmias Introduction Nearly everyone has felt their heart "skip a beat" or beat too slowly. Occasional heart palpitations are common and harmless, and can be caused by anything alcohol to staying up too late. These kind of palpitations don't require medical treatment, but recur...

• Word Count: 2852
• Approx Pages: 11
• Grade Level: High School