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Diagnostic Cardiology Specialist

Marc L. Ladenheim, MD, FACC

Cardiologist & Internist located in Burbank, CA

The heart is a complex organ, so diagnosis of diseases and disorders affecting the heart require the expertise of a qualified cardiologist. For this reason, your primary care doctor may refer you to Dr. Marc L. Ladenheim for diagnostic cardiology after detecting or suspecting an abnormality. Dr. Ladenheim provides diagnostic and interventional cardiology to patients in and around Studio City, Sherman Oaks, Valley Village, Encino, Tarzana, Toluca Lake, Chatsworth, North Hollywood (NoHo), Valley Glen, and Sun Valley at his practice, Marc L. Ladenheim, MD, FACC, in Burbank, California. Early intervention can change the course of life-limiting diseases of the heart.

Diagnostic Cardiology Q & A


What is the purpose of diagnostic cardiology?

Diagnostic cardiology is designed to diagnose the underlying cause of cardiac problems or symptoms. If you report heart-related symptoms, or have symptoms that could be heart-related, your primary physician may refer you to a diagnostic cardiologist like Dr. Ladenheim for further evaluation and treatment. His knowledge, experience and specialized diagnostic tools can clarify your condition.

What does diagnostic cardiology entail?

In order to diagnose or rule out a heart condition, Dr. Ladenheim may complete one or more of the following steps:

  • Obtain and review your complete medical history, including current medications, past diagnoses, surgeries, current health, and family history
  • Listen to your heart sounds using a stethoscope
  • Draw and review the results of blood tests, including cholesterol, triglyceride, c-reactive protein, fibrinogen, and more
  • Conduct certain cardiac testing like electrocardiogram (ECG), Holter monitor, event monitor, cardiac stress test, pharmocologic nuclear stress testing, stress echocardiography, and more 
  • Order medical imaging tests

What is a Holter monitor?

A Holter monitor is designed to be worn for a period of 24 hours, over which the rhythm of the heart is measured through EKG. Holter monitors are often used when the patient is not aware of their symptoms as the monitoring is continuous and will catch any unnoticed abnormalities. If the Holter monitor is unrevealing, then a long term monitor can be warned. 

What is an event monitor?

An event monitor is similar to a Holter monitor in that it uses EKG to record your heart rhythms, However, an event monitor only records when you tell it to. As soon as you begin experiencing symptoms, you simply push a button and the monitor begins recording. When you return to your doctor, he or she is able to read the results and determine what’s causing your symptoms.

Event monitors are not helpful when you aren’t experiencing noticeable symptoms; in these cases, a Holter monitor is used.

What is a cardiac stress test?

During a cardiac stress test, Dr. Ladenheim is able to evaluate your heart’s response to physical exertion. Cardiac stress tests are generally conducted using a treadmill, which means you should wear walking shoes and comfortable clothes to your appointment. Some patients are not able to walk on a treadmill and then stress can be induced using medication rather than exercise.