Persistent Heartburn Could Signal Overlooked Medical Condition
Individuals experiencing heartburn that persists for hours, with little relief from standard medications, are being strongly advised to consult their doctors about a potential diagnosis of Mast Cell Activation Syndrome (MCAS). This condition, while increasingly common in the UK, often goes unrecognised, leading to prolonged discomfort and ineffective treatments.
Expert Insights on MCAS and Heartburn
Dr Asif Ahmed, an NHS GP who shares health advice online under the handle @Dra_says, highlights that many people may be unaware of this "overlooked" medical issue. He explains, "If you have ongoing heartburn or reflux that does not improve with treatment, especially if it lasts all day, it is crucial to visit your doctor." Dr Ahmed notes that patients often report symptoms lasting over 12 hours, which is atypical for normal acid reflux and may indicate MCAS.
Common medications like lansoprazole or omeprazole might not suffice for those with MCAS, as the underlying cause involves immune system dysregulation rather than typical digestive issues. Dr Ahmed emphasises the importance of investigating this syndrome to avoid ineffective traditional treatments.
Understanding Mast Cell Activation Syndrome
MCAS is a condition where the body releases histamines inappropriately, often without a clear allergic trigger. This can lead to a range of seemingly unrelated symptoms, including:
- Fatigue and headaches
- Skin writing (dermographism)
- Body pain resembling fibromyalgia
- Itching similar to nettle rash
- Skin swelling and eye irritation
In severe cases, mast cell activation can cause anaphylaxis, a life-threatening allergic reaction that requires immediate medical attention. Dr Ahmed points out that individuals with MCAS often have other conditions like Ehlers-Danlos syndrome or gastroparesis, which complicate treatment.
Diagnosis and Management of MCAS
Diagnosing MCAS typically requires a specialist, such as an immunologist or allergist, who can conduct appropriate tests. While there is currently no cure for MCAS, management focuses on alleviating symptoms and enhancing quality of life through a multi-faceted approach.
Treatment strategies include:
- Avoiding known triggers that provoke symptoms
- Using medications like H1/H2 antihistamines to stabilise mast cells and block histamine production
- Adopting lifestyle changes, such as a low-histamine diet rich in fresh, unprocessed foods like meat, poultry, fish, and vegetables
Patients are encouraged to maintain a diary of potential triggers to better manage their condition. By raising awareness and seeking proper diagnosis, individuals with persistent heartburn can find more effective relief and improve their overall health outcomes.



