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心脏电生理学

电生理学实验室

心脏电生理学 is a rapidly growing subspecialty of cardiology which focuses on the diagnosis and treatment of cardiac arrhythmias.  The cardiac electrophysiology (or “EP”) laboratory is a specialized invasive procedure area where various procedures are performed, including diagnostic electrophysiology studies, 导管消融, pacemaker and implantable cardiac 去纤颤器 (ICD) implantations, Laser extraction of pacemaker and ICD leads, and implantation of biventricular pacing devices for treatment of congestive heart failure.

Our cardiac EP laboratory is the only one in Westchester County to offer catheter ablation of complex arrhythmias such as atrial fibrillation and 室性心动过速, 以及激光铅提取, 左心耳闭塞.

心脏电生理学 (EP) Studies at 威彻斯特医疗中心

The heart has an electrical system which controls its rhythm. The normal “pacemaker” of the heart is the sinus node in the top of the right atrium; one of the upper chambers of the heart, which normally initiates and controls the heart rate.  The electrical activity then travels to the AV node in the middle of the heart which holds and delays the activity to allow time for the top chambers to pump the blood to the bottom chambers.  It then travels to and stimulates the bottom 2 chambers (“ventricles”) which then pump the blood to the body and to the lungs.

Abnormalities in the heart's electrical system can cause slow rhythms such as sinus bradycardia or heart block, fast heart rhythms such as atrial fibrillation or flutter, 室上性心动过速, 室性心动过速, 或者心室颤动.  These abnormal rhythms can cause symptoms of palpitations (abnormal fluttering), 头晕或晕眩, 晕厥(昏倒)甚至死亡.

An electrophysiology study is a safe and relatively painless test which is used to: determine the cause of symptoms; determine if a patient is at risk of an arrhythmia (abnormal heart rhythm); determine which type and where the arrhythmia originates; determine the best type of treatment (e.g. 可能的起搏器, 去纤颤器, 药物治疗, 或消融), and potentially to treat and cure the arrhythmia.

The Electrophysiology study is done by an electrophysiologist (cardiology physician specializing in arrhythmia management) using fluoroscopy (x rays) and small catheters (tubes with small pacemaker tips), 穿过腹股沟的静脉, 然后穿进心脏.   Patients are awake (but sedated) during the procedure and don’t feel the catheters being placed into the heart.  The electrophysiologist uses a computer to stimulate the heart to test the electrical system and to potentially induce (start) the abnormal rhythm.  This information allows the physician to determine the best treatment.  If the treatment is catheter ablation this is often done at the same time to potentially cure the abnormal rhythm.  If the treatment is to be a pacemaker or implantable 去纤颤器 (ICD) this is generally done separately, 通常是在同一住院期间.  Medications can be used to stimulate the heart and to test the rhythm.  The EP study generally takes one to two hours.

Surgery后, 取出导管, 保持压力, patients can remain in bed and are welcome to have their families and loved ones sit with them in the ambulatory unit. Patients are generally discharged the same day--or the following day if a pacemaker or ICD implant is required.

To learn more about the services provided by Westchester Heart and Vascular p请联络我们:

866 - wmc心(866.962.4327).