03/02/2026
Ever had chest pain, but your doctor said your "main arteries look clear"? 🫀💔
It could be Microvascular Heart Disease (also known as Coronary Microvascular Dysfunction or CMD).
CMD is more common in women and can cause chest pain (angina) even without major, blockages in larger arteries. CMD affects the tiny vessels that a standard angiogram can't even see.This is why standard tests may come back "normal" even when you feel symptoms.
Specialized tests can find it such as :
Coronary Flow Reserve (CFR) or Index of Microcirculatory Resistance (IMR) Cardiac PET Scans or specialized Cardiac MRIs that measure blood flow in real-time.
Key Causes and Risk Factors:
Lifestyle Factors: Smoking, a sedentary lifestyle, high stress, lack of restorative sleep, and high-fat/salt diets.
Endothelial Dysfunction: The inner lining of the small vessels cannot relax properly, reducing blood flow.
Structural Damage (Remodeling): Small vessels may become stiff, narrow, or develop thick walls due to fibrosis or inflammation.
Vasospasm: Temporary, severe narrowing of the small arteries that restricts blood flow.
Metabolic Factors: Diabetes, high blood sugar, and high cholesterol are major contributors to vessel damage.
Inflammation and Autoimmune Diseases: Chronic inflammatory conditions like lupus or rheumatoid arthritis can damage the vessels.
Hormonal Changes: Low estrogen levels before or after menopause, as well as pregnancy-related changes, increase risk.
Other Factors: Hypertension (high blood pressure) and existing heart failure or cardiovascular disease.
Don't stop searching for answers and solutions . Your heart health matters! 🫀❤️✨