Managing High Heart Rate Despite Medication: A Patient's Journey - Cardiology

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Despite taking medication for hyperthyroidism, the heart rate remains between 140-150 beats per minute?


A little over a month ago, I visited a cardiologist due to frequent palpitations.
The blood test results indicated hyperthyroidism, and the doctor prescribed medication, including antiarrhythmic medication to be taken four times a day, one tablet each time.
However, after nearly a month of taking the medication, my heart rate has been consistently between 140-150 beats per minute for over a week.
Yesterday, I returned to the cardiologist, and after an electrocardiogram, the result was 95.
The doctor mentioned that there has been improvement and advised me not to worry.
I thought that my rapid heart rate would resolve immediately after going to the hospital, but the next morning, my heart rate measured 80.
However, after 11 AM, it spiked again to over 140.
I have already increased the dosage of the antiarrhythmic medication by one tablet each time, yet my heart rate remains elevated...

Xuan Xuan, 30~39 year old female. Ask Date: 2016/03/11

Dr. Lin Jixiong reply Cardiology


Hello, based on your description, it is recommended to discuss with a cardiologist the possibility of switching the antiarrhythmic medication to a longer-acting beta-blocker to enhance efficacy.
Dr.
Lin Chi-Hsiung.

Reply Date: 2016/03/11

More Info


Managing a high heart rate, especially when it persists despite medication, can be a challenging experience for patients. Your situation, characterized by a consistently elevated heart rate of 140-150 beats per minute, is concerning and warrants a comprehensive approach to management. Here’s a detailed overview of potential causes, management strategies, and lifestyle modifications that may help.


Understanding High Heart Rate
A high heart rate, or tachycardia, can be caused by various factors, including anxiety, stress, dehydration, excessive caffeine intake, or underlying medical conditions such as hyperthyroidism or heart disease. Since you mentioned that you have been experiencing this for over a month and have already undergone tests to rule out hyperthyroidism, it’s essential to consider other potential causes.


Medication Management
You mentioned that you have been prescribed medication, including heart rhythm medications, which you are taking four times a day. It’s crucial to communicate openly with your healthcare provider about the effectiveness of these medications. If your heart rate remains elevated despite increasing the dosage, your doctor may need to reassess your treatment plan. This could involve:
1. Re-evaluating Current Medications: Sometimes, the prescribed medication may not be effective for your specific condition. Your doctor might consider alternative medications or combinations that could better manage your heart rate.

2. Adjusting Dosage: If you have already increased your dosage, it’s important to do this under medical supervision. Your doctor may suggest a gradual increase or a different medication altogether.

3. Monitoring: Continuous monitoring of your heart rate and rhythm through devices like a Holter monitor can provide valuable data to your healthcare provider, helping them make informed decisions about your treatment.


Lifestyle Modifications
In addition to medication, lifestyle changes can significantly impact heart rate management:
1. Stress Management: High levels of stress and anxiety can exacerbate tachycardia. Techniques such as mindfulness, meditation, yoga, or deep-breathing exercises can help reduce stress levels.

2. Dietary Changes: Reducing caffeine and alcohol intake can help lower heart rates. A balanced diet rich in fruits, vegetables, whole grains, and lean proteins can also support overall heart health.

3. Regular Exercise: While it may seem counterintuitive, regular physical activity can help improve heart health and regulate heart rate over time. However, it’s essential to consult with your healthcare provider before starting any new exercise regimen, especially if you have a history of tachycardia.

4. Hydration: Dehydration can lead to an increased heart rate. Ensure you are drinking enough fluids throughout the day.

5. Sleep Hygiene: Poor sleep can contribute to elevated heart rates. Establishing a regular sleep schedule and creating a restful environment can improve sleep quality.


Follow-Up Care
Given your ongoing symptoms, it’s crucial to maintain regular follow-ups with your cardiologist. They may recommend additional tests, such as an echocardiogram or stress tests, to evaluate your heart's function and structure. If your symptoms persist or worsen, your doctor might consider more invasive procedures, such as catheter ablation, to correct any underlying arrhythmias.


Conclusion
Managing a high heart rate can be complex and requires a multifaceted approach. It’s essential to work closely with your healthcare provider to tailor a treatment plan that addresses your specific needs. By combining medication management with lifestyle changes and regular monitoring, you can improve your heart health and reduce the frequency and severity of your symptoms. Always remember to communicate openly with your healthcare team about your experiences and any concerns you may have.

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