When you need heart care on Long Island, the Mount Sinai Health System is here for you. With multiple Mount Sinai Doctors neighborhood practices, and Mount Sinai South Nassau, our flagship hospital in Oceanside, you will have access to the high-quality cardiac care Mount Sinai is known for, close to home. Our expert cardiologists can analyze your heart health and function, perform the latest diagnostic tests, and recommend evidence-based, personalized treatment plans for a wide variety of heart conditions.

If you are having unexplained chest pain, or other symptoms associated with heart attacks, dial 911 or go to the nearest emergency room immediately. Other heart attack symptoms can include, unexplained sweating, feeling lightheaded, fainting, sudden jaw, neck or arm pain, and shortness of breath.

Conditions We Treat

There are many types of heart conditions that can affect patients in numerous ways. Our cardiologists treat all forms of heart disease, including:

  • Adult Congenital Heart Disease: Mount Sinai offers expert care for a wide range of adult congenital heart diseases and conditions, including single ventricle defects, pulmonary hypertension, Eisenmenger's syndrome, coarctation of the aorta, tricuspid atresia, and more. Mount Sinai also offers multidisciplinary care during pregnancy for patients with simple or complex heart defects.
  • Aneurysm: Weakening and bulging of the artery wall, often discovered on an imaging exam.
  • Angina: Chest pain caused by decreased blood flow to the heart.
  • Arrhythmia (heart rhythm disorders): Irregular heartbeat, which can be faster or slower than normal.
  • Cardiomyopathy: Progressive disease that weakens the heart muscle.
  • Carotid artery disease: Fatty deposits (plaque) narrow or clog the blood vessels that supply blood to your brain.
  • Chronic pulmonary heart disease: High blood pressure in the arteries of the lungs that can lead to weakening of the heart.
  • Coronary artery disease: Fatty deposits (plaque) narrow or clog the blood vessels that supply blood to the heart.
  • High cholesterol level.
  • Hypertension (high blood pressure): which can affect the heart, kidneys, and other areas of the body, or hypotension (low blood pressure).
  • Pediatric Cardiology 
  • Peripheral artery disease (PAD): Narrowing of the arteries in the extremities, which reduces proper blood flow.
  • Septal defect: A hole in a heart wall, usually present from birth, which can increase the risk for a stroke.
  • Syncope: Fainting.
  • Thrombosis: Blood clot in the circulatory system.
  • Valve disease: When one or more of the four heart valves does not work properly.

Diagnosis and Treatment

Mount Sinai cardiac experts utilize a variety of diagnostic and treatment approaches for heart conditions. These include: 

  • Cardiovascular surgery, a surgical procedure to re-route blocked coronary arteries, or repair heart valves
  • Electrocardiogram – An electrocardiogram, also called an ECG or EKG, is a test that records the electrical activity generated by your heartbeat. It can detect irregular heart rhythms, called arrhythmias, and other heart conditions.
  • Echocardiogram and other heart imaging tests: Use of sound waves and other technologies to create a picture of the heart and evaluate function. 
  • Stress testing: Exercise tests that use electrocardiography to study the heart’s rhythm.
  • Nuclear stress testing: A higher level of stress testing that uses a tracer dye and imaging machines to study blood flow to the heart during exercise. 
  • Holter monitor: A wearable device that records the heart’s electrical activity for 24 to 48 hours, or longer if needed.   
  • Loop recorder: An implantable monitoring device that records the heart’s rhythm continuously for a period of months, to years. Data can be downloaded remotely, by your cardiologist. These are now being implanted at Mount Sinai Manhasset office as an outpatient procedure and are generally recommended for patients with prior stroke without explanation, episodes of loss of consciousness (syncope), and to guide management of arrhythmias including atrial fibrillation.
  • Evaluation for pacemaker, and pacemaker follow-up. 
  • Evaluation for defibrillators, and defibrillator follow-up.
  • Remote cardiac monitoring of pacemakers, defibrillators, implanted loop monitors.
  • Remote cardiac monitoring of congestive heart failure.
  • Interventional cardiology: Use of nonsurgical procedures and imaging techniques to diagnose and treat heart conditions. 
  • Heart health guidance and disease prevention.
  • Heart failure evaluation.
  • Ankle-brachial index test: A noninvasive test for peripheral artery disease.
  • Cardiac rehabilitation: An educational and exercise program to increase heart health following heart disease.
  • Cardiovascular genetics: How your genetic makeup affects heart health.

If it is determined at diagnosis that you need a higher level of heart care, you will have access to the full resources of the Mount Sinai Health System. When appropriate, you may be able to participate in clinical trials.