Q. Why is the ST segment elevated in a myocardial infarction?
Doctor Answer is medically reviewed by SecondMedic medical review team.
The ST segment elevation in a myocardial infarction (MI) is caused by an imbalance between oxygen supply and demand to the heart muscle. This occurs when a blocked artery prevents blood from reaching the heart, leading to decreased oxygen delivery and ultimately heart cell death. During an MI, different parts of your heart may be affected differently by lack of oxygen, causing what’s known as “regional variations” in the elevation of the ST segment on ECG readings.
When looking at an electrocardiogram (ECG), you’ll see that the ST segment represents the period during which your ventricles are repolarizing after being depolarized during each heartbeat cycle. Normally this segment should be straight with very little change throughout its length — but if it becomes elevated, this means something else is happening inside your heart muscle tissue to cause such a disruption.
In an MI situation where there has been decreased oxygen supply due to clogged arteries or other cardiac issues, chemical changes will occur within those affected cells which can lead to additional shifts in electrical voltages that appear on ECG recordings as tall peaks or elevations along the normally flat ST segments — know as ST elevation myocardial infarction (STEMI). These changes signify dead or damaged areas within your cardiac muscle wall - so doctors use them for diagnosis and treatment planning purposes.
By recognizing these high points on ECG readings taken after suspected MIs have occurred, healthcare professionals can determine which areas need medical attention most quickly and start treating any issues right away - potentially even saving lives in emergency scenarios!
Q. Hello Doctor, from past 3 weeks I have too much dandruff problem and it cause hair loss will you suggest any best solution for this?
Doctor Answer is medically reviewed by SecondMedic medical review team.
Answered by Secondmedic ExpertDealing with excessive dandruff leading to hair loss can be frustrating, but there are effective ways to address this issue. Here's what you can do:
1. Switch to a Gentle Shampoo: Opt for shampoos specifically designed for dandruff, containing ingredients like ketoconazole, zinc pyrithione, coal tar, or selenium sulfide. Use these shampoos regularly to reduce dandruff buildup.
2. Scalp Massage: Gently massage your scalp while shampooing to help remove flakes and improve blood circulation, which can promote healthier hair growth.
3. Avoid Hot Water: Wash your hair with lukewarm water instead of hot water, as hot water can dry out your scalp and worsen dandruff.
4. Balanced Diet: Ensure you're eating a balanced diet rich in vitamins and minerals essential for healthy hair and scalp, such as omega-3 fatty acids, zinc, and B vitamins.
5. Manage Stress: Stress can exacerbate dandruff problems. Practice stress-relief techniques like meditation, yoga, or regular exercise to help manage stress levels.
6. Apple Cider Vinegar Rinse: Consider using diluted apple cider vinegar as a rinse after shampooing. It can help restore the scalp's pH balance and reduce dandruff.
7. Consult a Dermatologist: If the issue persists despite trying home remedies or over-the-counter solutions, seek advice from a dermatologist. They can provide a personalized treatment plan tailored to your specific scalp condition.
Remember, consistency is key when dealing with dandruff. Give these remedies some time to work, as immediate results might not always occur. It's essential to find what works best for your scalp, so don't get discouraged if you don't see immediate improvements.
Taking care of your scalp health not only addresses dandruff but also aids in reducing hair loss associated with this issue. Feel free to incorporate these tips into your routine and observe how your scalp responds. If the problem persists or worsens, seeking professional guidance is always recommended.
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