A Cardiologist or Sonographer uses a special type of Ultrasound machine and probe to perform an ultrasound of the heart. This is usually done with the probe on the chest, known as a Trans-Thoracic Echocardiogram or TTE. Sometimes it is necessary to get the probe even closer to the heart and this is achieved by a Trans-Oesophageal Echocardiogram or “TOE” - the probe has to be swallowed and heavy sedation or a general anaesthetic is often required to make this tolerable.
An Echocardiogram (Echo) may be requested by your Cardiologist or another doctor, to assess symptoms that may suggest congestive cardiac failure (CCF), such as shortness of breath on exertion (SOBOE), swelling of the legs and ankles (peripheral oedema), shortness of breath when lying flat (orthopnoea) or waking in the middle of the night feeling extremely short of breath (paroxysmal nocturnal dyspnoea or PND). A heart murmur sometimes indicates a narrowed (stenotic) or leaking (regurgitant) heart valve, and the valve involved as well as the severity - often expressed in terms of a pressure gradient - can be determined by an Echocardiogram. Growths on the heart valves (vegetations) are associated with endocarditis, a rare condition caused by infection of the inner lining of the heart (endocardium). The heart is surrounded by a membrane or sac known as the pericardium. Usually the space between the heart and the pericardium contains a very small amount of fluid, but if the pericardium is inflamed (pericarditis), the amount of fluid may increase enough to be detectable on an Echo. An Echo is sometimes ordered when an individual has had a stroke or a Transient Ischaemic Attack (TIA or “mini-stroke”), to exclude the heart as a source of blood clots to the brain.
A detailed report is usually typed and sent to your doctor. It may include:
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