Mild Myocardial Ischemia: Your Heart Health and Management - Cardiology

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Mild myocardial ischemia


Hello, Doctor He.
I have had high blood pressure since I was 18 years old, and after turning 30, I started taking antihypertensive medication.
I am currently 40 years old and take Amlodipine 5/80 daily.
In November 2010, during a health check-up, the report indicated that the exercise electrocardiogram could not determine if there was myocardial ischemia, and it was recommended to follow up with a cardiologist, but I overlooked it at that time.
In September 2022, due to a positive exercise electrocardiogram, my doctor performed a myocardial perfusion scan in October 2022, with the following results: Hypertensive heart disease without heart failure.
Imaging findings: Dipyridamole Thallium-201 myocardial perfusion gated single photon emission computed tomography (SPECT): 1.
Persantin 0.56 mg/kg was administered by intravenous infusion for 4 minutes, as per standard protocol.
2.
The results revealed: Stress SPECT imaging: - planar imaging: heterogeneous perfusion in the heart.
- Transient ischemic dilatation (TID): 0.86; Lung-to-heart ratio (LHR): 0.31.
- estimated left ventricular ejection fraction (LVEF): 74%; - SPECT imaging: heterogeneous myocardial perfusion in the global left ventricular walls with relatively decreased perfusion in the mid inferolateral wall of the left ventricle.
Redistribution SPECT imaging: - partial to nearly complete reversible redistribution in the aforementioned walls of the left ventricle.
3.
The above findings suggested: - certain abnormality in myocardial perfusion imaging (MPI) results: mild reversible perfusion defect in the aforementioned walls of the left ventricle.
Impression: The myocardial perfusion imaging reveals mild myocardial ischemia in the mid inferolateral wall of the left ventricle.
The attending physician stated that the examination results indicated mild myocardial ischemia.
In September 2022, my blood test showed low LDL cholesterol at 111, high HDL cholesterol at 44.9, total cholesterol at 173, and triglycerides at 43.
Currently, I do not have any significant discomfort, but my doctor believes that I do not need to undergo catheterization as long as I manage my blood pressure well.
I need to have my lipid levels checked every six months to a year, exercise, and maintain a low-sodium diet to keep my bad cholesterol below 130.
Doctor He, do you think I should maintain the current status, or should I seek another doctor who might prescribe lifelong medications for lipid control or anticoagulants, such as aspirin?

A Yan, 40~49 year old female. Ask Date: 2022/10/24

Dr. He Dongjin reply Cardiology


Hello, mild myocardial ischemia.
It is advisable to follow your attending physician's recommendations to maintain the current status.
Blood pressure, dietary control, and exercise are sufficient.
Changhua Hospital cares about you.

Reply Date: 2022/10/24

More Info


Mild myocardial ischemia is a condition that indicates a temporary reduction in blood flow to the heart muscle, which can lead to symptoms such as chest pain or discomfort, especially during physical exertion or stress. Your recent medical history suggests that you have been managing hypertension and have undergone various cardiac evaluations, including a myocardial perfusion scan that indicated mild ischemia in the mid inferolateral wall of the left ventricle.
Given your background of hypertension and the findings from your myocardial perfusion imaging, it is crucial to understand the implications of mild myocardial ischemia and how to manage your heart health effectively.

Understanding Your Condition
1. Hypertensive Heart Disease: Your diagnosis of hypertensive heart disease indicates that your heart has been affected by long-standing high blood pressure. This condition can lead to changes in the heart's structure and function, including left ventricular hypertrophy (thickening of the heart muscle) and potentially reduced blood flow to the heart muscle itself.

2. Mild Myocardial Ischemia: The results from your myocardial perfusion scan suggest that there is a mild reversible perfusion defect. This means that during stress testing, certain areas of your heart did not receive enough blood flow, but this is reversible, indicating that the ischemia is not permanent. The fact that your left ventricular ejection fraction (LVEF) is within a normal range (74%) is a positive sign, as it indicates that your heart's pumping ability is still intact.


Management Strategies
1. Blood Pressure Control: It is essential to maintain your blood pressure within the target range. Since you are already on medication (e.g., Amlodipine), regular monitoring of your blood pressure is crucial. Aim for a systolic blood pressure below 130 mmHg and diastolic below 80 mmHg, as recommended by guidelines for individuals with hypertension.

2. Lipid Management: Your lipid profile shows low total cholesterol and triglycerides, which is favorable. However, it is important to keep monitoring your lipid levels regularly, as your doctor suggested. Keeping your LDL (bad cholesterol) below 130 mg/dL is a good target to minimize cardiovascular risk. If lifestyle changes are insufficient, your doctor may consider prescribing statins or other lipid-lowering medications.

3. Lifestyle Modifications: Adopting a heart-healthy lifestyle is vital. This includes:
- Diet: Focus on a diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats. Limit saturated fats, trans fats, and sodium.

- Exercise: Regular physical activity can help improve cardiovascular health. Aim for at least 150 minutes of moderate-intensity aerobic exercise per week, as tolerated.

- Weight Management: Maintaining a healthy weight can significantly reduce the strain on your heart and help control blood pressure.

4. Regular Follow-ups: Continue to have regular check-ups with your healthcare provider. Monitoring your heart health through periodic evaluations will help catch any changes early. If you experience new symptoms, such as increased chest pain, shortness of breath, or palpitations, seek medical attention promptly.

5. Medication Considerations: Regarding the long-term use of medications like aspirin, this decision should be made in consultation with your healthcare provider. Aspirin can be beneficial for certain patients at risk for cardiovascular events, but it is not universally recommended for everyone. Your doctor will assess your overall risk factors and determine the appropriateness of such therapy.


Conclusion
In summary, while your current condition of mild myocardial ischemia requires attention, it is manageable with proper lifestyle modifications, regular monitoring, and adherence to prescribed medications. It is advisable to maintain open communication with your healthcare provider regarding your treatment plan and any concerns you may have. If you feel uncertain about your current management or wish for a second opinion, consulting a cardiologist could provide additional reassurance and guidance tailored to your specific needs.

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