Managing Fast Heartbeat and Medication Concerns in Neurology - Neurology

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Rapid heartbeat and medication issues?


Hello, doctor.
Currently, I am experiencing dizziness, occasional headaches, and a rapid heartbeat, along with early symptoms of tremors that have become more pronounced recently.
I am concerned about potential health issues and sought medical attention.
Relevant test results came back normal, so the doctor believes my symptoms are due to anxiety and stress.
I was prescribed a beta-blocker to take once in the morning and once at night for a month.
However, a few days after the consultation, my stressors resolved, and I noticed I felt much more relaxed.
My heart rate measurements at night, before taking the medication, were within normal ranges, even reaching the 70s, and other symptoms have not improved significantly.
I am reconsidering whether I need to continue taking the medication, as I worry that if the source of my anxiety has disappeared, continuing the medication might lower my heart rate and blood pressure too much, which could be dangerous.
I have already taken two doses, but I understand that this type of medication should not be stopped abruptly.
Therefore, I would like to ask if you would recommend completing the full month of medication before returning for a follow-up, or if I can stop the medication early and schedule an earlier follow-up to discuss my situation, or if you have any other suggestions.
Thank you, doctor.

Bai Qing, 20~29 year old female. Ask Date: 2020/09/07

Dr. Jiang Junyi reply Neurology


Hello, based on your description, tachycardia is considered a response to sympathetic nervous system activation.
Stress and tension can both lead to an increased heart rate.
Propranolol works by reducing sympathetic nervous system activity.
Our autonomic nervous system is regulated by both the sympathetic and parasympathetic nervous systems—one acts as the accelerator, while the other serves as the brake.
The sympathetic nervous system is responsible for stimulating the body, leading to increased heart rate, faster breathing, and increased sweating during activities like exercise.
Once the activity stops, the parasympathetic nervous system takes over, which slows the heart rate, decreases breathing rate, and reduces sweating.
This explains the drop in blood pressure and the decrease in heart rate that you mentioned, which are effects of this type of medication.
If propranolol is used long-term, it is not advisable to stop it suddenly; a gradual tapering is recommended.
The drug has a biological half-life of about 4–5 hours, and its effects will diminish within a day of discontinuation.
If you have any further questions, please consult your primary care physician for discussion, examination, and treatment.
Wishing you good health and happiness.
Dr.
Jiang from Taoyuan Medical Center cares about you.

Reply Date: 2020/09/07

More Info


Managing a fast heartbeat, especially when it is linked to anxiety and stress, can be a complex issue that requires careful consideration of both physical and psychological factors. Based on your description, it appears that your symptoms—such as dizziness, occasional headaches, and a rapid heartbeat—may be closely tied to anxiety and stress levels. This is not uncommon, as the autonomic nervous system, which regulates heart rate and other involuntary functions, can be significantly affected by emotional states.

When you experience anxiety or stress, your body enters a "fight or flight" mode, which can lead to an increase in heart rate (tachycardia) and other physiological responses. This reaction is a normal part of the body's response to perceived threats, but when it becomes chronic or excessive, it can lead to discomfort and concern about underlying health issues, such as heart disease or other medical conditions.

In your case, since you have undergone various tests that have returned normal results, it is likely that your symptoms are indeed related to anxiety rather than a primary cardiac issue. The fact that your heart rate has stabilized when you are relaxed suggests that your body is responding to stressors rather than indicating a persistent medical problem.

Regarding the medication you have been prescribed, it is crucial to follow your doctor's guidance. Many medications for heart rate control or anxiety can have withdrawal effects if stopped abruptly, and it is generally recommended to complete the prescribed course unless otherwise directed by your healthcare provider. Since you have noticed improvements in your symptoms after the stressors have diminished, it may be worth discussing with your doctor whether you can taper off the medication or adjust the dosage.

Here are some considerations for managing your situation:
1. Consult Your Doctor: Before making any changes to your medication regimen, it is essential to consult with your healthcare provider. They can provide personalized advice based on your medical history and current condition.

2. Monitor Your Symptoms: Keep a journal of your symptoms, noting when they occur, their intensity, and any potential triggers. This information can be valuable for your doctor in determining the best course of action.

3. Lifestyle Modifications: Incorporate stress-reducing techniques into your daily routine. Practices such as mindfulness meditation, yoga, and regular physical activity can help manage anxiety and improve overall well-being.

4. Avoid Stimulants: Be mindful of your intake of caffeine and other stimulants, as they can exacerbate anxiety and contribute to increased heart rate.

5. Follow-Up Appointments: Schedule regular follow-ups with your healthcare provider to monitor your progress and make any necessary adjustments to your treatment plan.

6. Educate Yourself: Understanding the connection between anxiety and physical symptoms can help alleviate some of your concerns. Knowledge can empower you to manage your symptoms more effectively.

In summary, while it is understandable to be concerned about your symptoms, it is essential to approach the situation with a balanced perspective. Given that your tests have returned normal results, and you have experienced improvements with reduced stress, it may be appropriate to discuss the possibility of adjusting your medication with your doctor. Always prioritize open communication with your healthcare provider to ensure that you receive the best care tailored to your needs.

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