Cardiology RSS

Investing in an AED is a great step forward because it can increase the chance of survival for witnessed Cardiac Arrest from 5% to 85% – when combined with the other links in the chain of survival. 

The Chain of Survival is the unanimously accepted approach to resuscitation. It states the following:

  1. Early Access (i.e. someone has to get to the person quickly and call 000)
  2. Early CPR (i.e. someone must perform effective CPR quickly)
  3. Early Defibrillation (i.e. apply an AED)
  4. Early Advanced care (i.e. get the victim into advanced medical care quickly)

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The cardiac action potential describes the electrical activity of a cardiac myocyte (muscle cell), and its relationship to the activity of ions across the cell’s membrane.

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The World Health Organization states that a person is diagnosed with high blood pressure when when any of the following criteria are met:

  • systolic blood pressure greater than or equal to 140 mmHg, or
  • diastolic blood pressure greater than or equal to 90 mmHg, or
  • receiving medication for high blood pressure (Whitworth 2003).

According to a recent report from the Australian Bureau of Statistics, about 23% of Australians aged 18 and over suffer from high blood pressure, with the percentage increasing with age.

So, is it a disease or just a natural progressive consequence of aging?

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Have you ever thought "what is blood pressure? And how do I understand blood pressure numbers?" Maybe you've asked "Do I have high blood pressure?"

Blood pressure is a measure of the force blood exerts on arterial walls measured in milligrams of mercury (mmHg), and is an essential measurement to monitor in home and professional health care.

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Acute Coronary Syndrome (ACS) is a term used to describe a range of conditions associated with a sudden reduction of blood flow to the myocardial tissue. Three conditions come under the ACS category and they are Unstable Angina (UA), Non-ST elevation myocardial infarction (NSTEMI) and ST elevation myocardial infarction STEMI. UNSTABLE ANGINA (UA) Unstable angina is an acute coronary syndrome characterised by the absence of biochemical evidence of myocardial damage. Typical clinical features include prolonged retrosternal chest pain and other angina like symptoms that occur at rest. The 12 Lead ECG may show ST depression, localised T-wave depression or it...

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