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What is septal wall infarct?

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A septal wall infarct is an acute myocardial infarction, or heart attack, that takes place in the septum of the heart. The septum divides the left and right chambers of the heart, explains MedicineNet.

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A heart attack occurs when there is reduced blood flow to cardiac tissues, called myocardial ischemia. A prolonged, reduced blood flow results in the death of the affected tissue, explains Cleveland Clinic. If portions of the septum do not receive adequate blood flow, this results in ischemia of the septal tissue and increases the likelihood of a heart attack.

An exercise treadmill stress test is commonly used to diagnose myocardial ischemia. During exercise, a patient is monitored using an electrocardiogram to check for electrical changes within the heart, specifically ST-segment depression, according to the National Center for Biotechnology Information. ST-segment depressions of 1 millimeter and greater signify ischemia within the heart.

Symptoms of a myocardial infarction differ between individuals, and women are less likely than men to experience the classic symptoms of a heart attack, explains WebMD. Common symptoms of a heart attack include chest pain, shortness of breath, lightheadedness and nausea. Symptoms are often confused with heartburn symptoms, but anyone experiencing any type of chest pain or other heart-related symptoms should seek immediate medical attention.

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