Hypertrophic cardiomyopathy
is a condition in which muscle of the heart become thickened without an obvious cause. The parts of the heart most commonly affected are the interventricular and the . This results in the heart being less able to pump blood effectively and also may cause electrical problems. Specifically affected are the bundle branches that conduct impulses through the interventricular septum and into the Purkinje fibers, as these are responsible for the depolarization of contractile cells of both ventricles.
Underlined words are explained — tap any of them.
Symptoms — what it feels like
- ·Feeling tired, leg swelling, shortness of breath, chest pain, fainting
Causes — why it happens
- ·, Fabry disease, Friedreich's , , certain medications
How it's found
- ·, , stress testing, testing
Treatment
- ·Medications, implantable ,
Complications
- ·Heart failure, irregular heartbeat, sudden death
Outlook
- ·Less than 1% per year risk of death (with treatment)
The sections below are general education drawn from public guidelines (NHS, Mayo, CPIC, WHO, ICMR). They are not individually reviewed by a clinician and are not medical advice — always talk to a doctor about your own health.
When to see a doctor
See a doctor if you get breathless or chest tightness on exertion, feel your heart pounding or fluttering, or feel lightheaded during or just after exercise.
Call emergency services if you faint (especially during exercise), have chest pain, or have a racing heartbeat that will not settle. Because this can run in families and sometimes causes sudden collapse in young people, close relatives should be offered screening.
General guidance, not a diagnosis. When in doubt, see a doctor.
Questions to ask your doctor
- ?Which tests confirm this, and do I need genetic testing?
- ?Should my parents, siblings, and children be screened?
- ?Which sports or intense exercise should I avoid?
- ?What symptoms put me at higher risk and mean I should act fast?
- ?Do I need any device or specialist heart review?
- ?How often will my heart be monitored?
What to note before your visit
- ·any fainting or near-fainting, especially with exercise
- ·family history of this condition or sudden death
- ·palpitations, chest tightness, or breathlessness
- ·current medicines you take
Test yourself
0/4 answered4 quick questions on Hypertrophic cardiomyopathy. Tap an answer to check it.
Across the gene set (LMNA, , MYH7, TNNI3, TNNT2), 150 -'' are actually seen in South Asians () - many European-absent and still clinically 'uncertain'. For cardiomyopathy, that's a pool of computationally-damaging, India-relevant, clinically-unresolved variants no one has systematically characterised.
A study that would help: Take the South-Asian-observed, European-absent, ClinVar-uncertain in LMNA, , MYH7, TNNI3, TNNT2 and them for : functional or family segregation to move them from 'uncertain' to a real call. Each is a usable diagnostic result.