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MYOCARDIAL INFARCTION: CAUSES, SYMPTOMS, DIAGNOSIS, AND
TREATMENT METHODS
Scientific Advisor:
Ibodulla Tursinmetov
Faculty of Treatment No. 2
Student of Group 117 - 'A':
Fayziyeva O’g’ilxon Amrulloyevna
Abstract
This article provides detailed information about the causes, risk factors, clinical
signs, diagnostic methods, and modern treatment approaches for myocardial infarction.
It also discusses post-infarction rehabilitation and preventive measures to avoid the
disease. The article is intended for medical students, physicians, and a wide audience
interested in heart health.
Keywords:
Myocardial infarction, heart attack, atherosclerosis, thrombus,
coronary artery, ECG, angiography, rehabilitation, heart diseases, prevention.
Introduction
Myocardial infarction is an acute stage of myocardial ischemia characterized by
the cessation of blood flow to the heart when its blood supply is disrupted. If blood
flow is not restored within fifteen minutes, part of the heart muscle dies (necrosis). This
dead tissue in the heart is called a myocardial infarction. Necrosis can be extensive or
localized. Depending on the location, there are anterior, lateral, and interventricular
infarctions. In men under 60, myocardial infarction is five times more common than in
women of the same age, due to the early development of atherosclerosis in men.
Causes
The main and most common cause of myocardial infarction is a disruption in the
blood flow in the coronary arteries, which supply the heart muscle with blood and
oxygen. This disruption is often caused by atherosclerosis, during which
atherosclerotic plaques form on the artery walls. Other causes include:
- Ischemic heart disease
- Diabetes, hypertension
- Any stage of obesity
- Stressful situations
- Addiction to nicotine and alcohol
Symptoms of Myocardial Infarction
Symptoms develop gradually rather than immediately:
- Angina pectoris
- Severe chest pain with a burning sensation, radiating to the arms, shoulders,
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stomach, lower jaw, and other parts
- Pale skin, cold and clammy sweat
- Arrhythmia
- Nausea, vomiting
- Fear, anxiety, feeling of impending death
- Necrotic damage to heart tissues can lead to heart failure, low blood pressure,
shortness of breath, swelling in the arms and legs. Symptoms may subside during the
plaque formation phase.
Diagnosis
Modern diagnostic methods used for identifying myocardial infarction include:
- Electrocardiography (ECG): detects changes in heart's electrical activity
- Cardiac markers (troponin, CK-MB): indicate heart muscle damage
- Echocardiography: assesses contraction ability and structural changes
- Coronary angiography: shows arterial blockage, aids treatment planning
Treatment
Prompt assistance in case of infarction is vital. Treatment methods include:
Pharmacological:
- Aspirin: reduces blood clotting
- Nitrates: reduce heart workload
- Beta-blockers: slow heart rate
- ACE inhibitors: lower blood pressure, protect heart muscle
- Statins: lower cholesterol
Invasive:
- Percutaneous coronary intervention (angioplasty + stenting): opens blocked arteries
- Coronary artery bypass surgery: creates an alternative route for blood flow
Rehabilitation
Rehabilitation is necessary for recovery and preventing future infarctions:
- Physical rehabilitation: heart-safe exercises
- Continuous medication
- Dietary changes (low salt and fat)
- Psychological support and stress control
- Complete cessation of smoking and alcohol
- Regular medical checkups
Prevention
To prevent myocardial infarction:
- Healthy diet: more vegetables, fruits, fish, grains
- At least 30 minutes of physical activity daily
- Maintain a healthy weight
- Quit smoking
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- Control blood pressure, sugar, and cholesterol levels
- Learn stress management techniques
Conclusion
Myocardial infarction is one of the most dangerous and life-threatening
conditions of the cardiovascular system. It occurs when blood supply to the heart
muscle is suddenly blocked and, if not treated in time, can lead to serious complications
or death. Modern diagnostic and treatment methods help reduce the consequences.
However, prevention, control of risk factors, a healthy lifestyle, and regular check-ups
are key. Early diagnosis and proper treatment play a crucial role in saving lives.
Additionally, individuals must not neglect their health as chronic stress can severely
affect the heart and lead to serious illnesses.
References
1.
Mirzakarimov M.M., Karimov Sh.K. 'Cardiology', Tashkent: 'Tibbiyot', 2020.
2.
Harrison’s Principles of Internal Medicine, 21st Edition. McGraw Hill Education,
2022.
3.
Braunwald E. 'Heart Disease: A Textbook of Cardiovascular Medicine', 11th
Edition, Elsevier, 2019.
4.
Task Force of the European Society of Cardiology (ESC). '2023 ESC Guidelines
for the management of acute coronary syndromes', European Heart Journal, 2023.
5.
Kasani K.R., Movahed M.R. 'Risk factors and outcomes in acute myocardial
infarction', Journal of Clinical Medicine Research, 2021.
6.
Ministry of Health of the Republic of Uzbekistan. 'Methodological Guide on
Prevention of Cardiovascular Diseases', Tashkent, 2022.
