An echocardiogram is a diagnostic test which is used to study the structure and function of the heart. An echocardiogram uses sound waves to create an image of the internal organ to study the normal structure and abnormality if any. An echocardiogram is a quick and safe procedure as it does not an electromagnetic reaction for imaging. Stress echocardiogram as the name suggests is an echocardiogram which is conducted under stress conditions to check the status of the heart functioning under excess workload or stress. Dobutamine is drug which is used to induce stress like condition or to make heart beat faster.
What is the principle of an echocardiogram ?
An echocardiogram is performed based on the principle of use of sound waves which echo and once they are received by a transducer or a probe connected to a monitor which are later translated inti images.
When is a dobutamine stress echocardiogram advised ?
A Dobutamine stress echocardiogram is advised in individuals who are at an increased risk of cardiac disease or who have a history of cardiac disease. Below are the few indications of a dobutamine stress echocardiogram.
- Obesity and high cholesterol levels which may affect the heart’s functionality
- To check the functioning of heart in individuals who are at an increased risk of cardiac disease
- To check the extent of heart valve disease
- To observe the functionality of heart in patients diagnosed with coronary heart disease
- To aid in cardiac rehabilitation in patients who are treated for cardiac disease
- To evaluate the status of heart before posting a patient for a surgery
When is a dobutamine stress echocardiogram not advised ?
An echocardiogram is rather safe procedure, but in stress echocardiograms the workload on the heart is increased hence, individuals who have high blood pressure, previous history of angina/heart attack, irregular heartbeat, headache and dizziness should be evaluated by a physician before posting them for the test.
How do you prepare for a dobutamine stress echocardiogram ?
A Dobutamine stress echocardiogram is usually advised by your cardiologist after he/she takes your complete medical history, physical examination and reviewing your medication. Your cardiologist might ask you to avoid eating anything at least a few hours before the procedure. You will also be asked to not smoke or have caffeine at least a few hours before the test as it may interfere with the test results. A dobutamine stress echocardiogram is conducted as an outpatient procedure and you might be asked to remove your jewelry and change into hospital gown before the test starts.
Who performs a dobutamine stress echocardiogram ?
A dobutamine stress echocardiogram is performed by a cardiologist.
What happens during a dobutamine stress echocardiogram ?
Once you have changed into the hospital gown, you will be made to lie down on the examination table. Electrodes will be placed on your chest to monitor your heart rate during the echocardiogram. An IV (intravenous) line will be started to start IV fluids or to inject medication during the procedure. Your cardiologist will use a transducer/probe which we pressed against your chest after application of a lubricant gel. The dobutamine infusion will be through the IV line depending on your body weight and age. As the dobutamine effect will set in your heart will start functioning under stress conditions and the functionality of the heart will be seen during the echocardiogram. Your blood pressure will be monitored during the procedure and if you feel dizzy or uncomfortable you should immediately inform your doctor. Once the test is completed you will be either asked to stay in the hospital or go back home.
What are the risks and complications associated with dobutamine stress echocardiogram ?
The procedure might lead to certain complications like mild discomfort, breathlessness, dizziness, chest pain, tiredness, nausea, high blood pressure and rarely a heart attack. It is important that you ask your treating doctor about the potential risks and complications associated with the stress test and if it is suitable for your health requirements.
Disclaimer: The content provided here is meant for general informational purposes only and hence SHOULD NOT be relied upon as a substitute for sound professional medical advice, care or evaluation by a qualified doctor/physician or other relevantly qualified healthcare provider.
