Patient Support

HCM Pathways 

Pathways To Diagnosis

Some people with HCM are not diagnosed properly for months, years, or even decades because HCM can mimic other illnesses. Even with a family history of cardiac issues, some people with HCM are not referred to a cardiologist right away. Many physicians - including cardiologists - are not familiar enough with HCM, and are sometimes fooled by the similarity of some of its symptoms to other problems.

There are many pathways for patients to follow.  In some cases patients can be on multiple pathways at the same time.


HCM - The great masquerader:

Here are some of the most common conditions that people with HCM are diagnosed with before their HCM is discovered.

Athletically Induced Asthma (also called Exercise Induced Asthma) - Shortness of breath in HCM can mimic asthma, especially in people who don't have obstruction.

Mitral Valve Prolapse - Heart murmur in HCM may be diagnosed as a mitral valve prolapse, which also causes a heart murmur.

Innocent Heart Murmur - If the HCM murmur is intermittent, it might be diagnosed as an innocent heart murmur and nothing to worry about.

Panic Attack - A combination of shortness of breath, racing heart (tachycardia), and lightheadedness in HCM can be misdiagnosed as panic attacks. What's worse, feeling this way can cause someone to feel scared and that ramps up the symptoms.

Depression - Symptoms of fatigue, brain fog, and worry that something is wrong in HCM can be misdiagnosed as depression.

Cardiac Arrest:  Some HCM patients aren't diagnosed until they survive a cardiac arrest and are given a complete exam by a cardiologist.


Other Pathways to Diagnosis:

This is not an all-inclusive list, there are other ways HCM may be diagnosed. Unfortunately, sometimes HCM is not diagnosed until after death and is found on autopsy.


HCMA 6/2021