Well hypertension can cause intimal injury triggering the cascade - together with other factors it leads to atherosclerotic plaque formation - narrowing the lumen of the vessels (coronary artery) leading to insufficient blood supply to the heart muscles and angina as manifestation. Aggravated by exercise. But as disease progresses i.e. the lumen is severely narrowed, angina may happen at rest.
angina is pain in the chest usually due to lactic acid build up... just like when you exercise too hard and your leg muscles burn or hurt... its lactic acid same thing in the heart... its from insufficient supply of oxygen caused by problem with the circulation... so how does this relate to hypertension?? Well depends on the nature and cause of hypertension but if there is constriction of the arteries... this will also cause the BP to be elevated... and will also reduce the blood flow to the heart.... thus not enough oxygen is supplied... and lactic acid will build up leading to the angina experienced by the pt. any situation that increases the Oxygen demand can trigger an episode of angina... running to catch a bus for example, exercise, strong emotions, stress, and extreme temperatures are all examples one other cause is coronary artery spasm... i wont get into the details... its too late to type... hope this answers your question
No comments:
Post a Comment