Cardiac electrophysiology can help identify the cause and type of abnormal heart rhythms and guide appropriate treatment. Here are answers to common questions about electrophysiology evaluation, EP studies, arrhythmia treatment and follow-up.
Cardiac electrophysiology is a specialised area of cardiology that focuses on the heart's electrical system and abnormal heart rhythms. It helps cardiologists evaluate conditions such as atrial fibrillation, atrial flutter, supraventricular tachycardia and other arrhythmias and determine the most appropriate treatment.
An electrophysiology evaluation may be recommended when you have recurring palpitations, unusually fast or slow heartbeats, unexplained fainting, dizziness or other symptoms that may be related to an abnormal heart rhythm. Your cardiologist will decide which investigations are appropriate based on your symptoms and medical history.
An EP study is a specialised test that evaluates the electrical activity of the heart. Thin electrode catheters are guided through a blood vessel into the heart to record electrical signals and help identify where an abnormal rhythm originates.
An EP study is generally performed with local anaesthesia and medication to help you relax. You may feel pressure where the catheter is inserted and may notice your heartbeat becoming faster or stronger during parts of the test, but significant pain is not usually expected.
An EP study commonly takes around 1 to 4 hours, although the duration can vary depending on the complexity of the evaluation. If catheter ablation or another treatment is performed during the same session, the procedure may take longer.
An EP study can help identify the source and mechanism of different abnormal heart rhythms, including certain types of tachycardia and other arrhythmias. It may also help doctors decide whether treatments such as catheter ablation, a pacemaker or an implantable cardioverter-defibrillator (ICD) may be appropriate.
Catheter ablation is a minimally invasive treatment that uses specialised catheters to target a small area responsible for abnormal electrical signals. It may be recommended for selected patients when an arrhythmia can be treated effectively with ablation, including certain cases of SVT, atrial flutter and atrial fibrillation.
Not exactly. Cardiac electrophysiology is the specialised field focused on the heart's electrical system and rhythm disorders. Arrhythmia treatment is the management of a diagnosed rhythm problem and may involve medicines, cardioversion, catheter ablation or device-based treatment depending on the condition.
Depending on your symptoms, your cardiologist may recommend tests such as an ECG, Holter monitoring, echocardiography or other cardiac investigations before deciding whether an EP study is needed. The exact tests depend on your medical history and suspected rhythm disorder.
EP studies are generally considered safe when performed by an appropriately trained medical team, but like any invasive procedure, they can have risks. These may include bleeding or bruising at the catheter site, infection, blood clots or other complications. Your cardiologist will explain the potential benefits and risks based on your individual condition.
Many patients can go home after a period of observation, although this depends on the type of procedure performed, your medical condition and whether additional treatment such as ablation was carried out. Your medical team will provide specific recovery and activity instructions before discharge.
You can contact Atrius Cardiac Care to discuss your symptoms and arrange a consultation with the cardiac team. Your cardiologist can review your medical history and previous reports and recommend appropriate rhythm evaluation or further electrophysiology assessment when required.