Rapid Heartbeat: Causes and Concerns for Patients

Tachycardia

Doctor, I apologize for bothering you, but I would like to ask a question.
Last year, I was hospitalized for a week due to a misdiagnosis of a urinary tract infection, and later I was correctly diagnosed with gastric erosion.
I took medication for a month, and after that, I began experiencing intermittent episodes of tachycardia accompanied by involuntary trembling in my hands and feet.
During these episodes, I remained fully aware, but my movements were rapid, and I even experienced some emotional instability.
The doctors were unsure of the cause, but I wasn't under any significant stress at that time.
A few weeks later, the involuntary trembling stopped, but the palpitations persisted without improvement.
Recently, my palpitations have worsened; sometimes I can feel my heartbeat, and when it races, I even experience dizziness, chest tightness, and fatigue.
Normally, my heart rate is below 80, but during episodes, it exceeds 100.
I had a resting electrocardiogram, but the doctor said my heart rate appeared regular and there should be no issues.
However, I am still somewhat concerned because I have never experienced this before.
I recently completed my university entrance exams, but my condition has not improved; in fact, it has become more frequent.
I would like to ask the doctor what might be wrong with me.
If this is indeed caused by emotions, why do I not experience these symptoms when I am angry or sad?

Wu, 10~19 year old female. Ask Date: 2016/04/09

Dr. He Dongjin reply Cardiology

Hello, the doctor will arrange for a 24-hour electrocardiogram or monitor thyroid function.
If no abnormalities are found, perhaps using a simple medication like Cardiolol could be helpful.
Changhua Hospital cares about you.

Reply Date: 2016/04/09

More Info

Understanding rapid heartbeat, or tachycardia, is crucial for patients experiencing this condition, especially when it is accompanied by other symptoms such as dizziness, fatigue, or anxiety. Tachycardia can arise from various causes, and understanding these can help alleviate concerns and guide appropriate management.

Firstly, it is essential to recognize that a rapid heartbeat can be a normal physiological response to certain stimuli. For instance, during physical activity, emotional stress, or even caffeine consumption, the heart rate can increase significantly. However, when tachycardia occurs at rest or without an apparent trigger, it may warrant further investigation.

In your case, you mentioned experiencing episodes of rapid heartbeat along with feelings of dizziness and fatigue. These symptoms can be indicative of several underlying issues. One common cause is anxiety or panic disorders, which can lead to heightened sympathetic nervous system activity, resulting in an increased heart rate. Interestingly, while you noted that you do not feel these symptoms during moments of anger or sadness, it is possible that your body responds differently to various emotional states. Anxiety can often manifest physically in ways that are not directly correlated with emotional triggers.

Another potential cause of your symptoms could be related to autonomic dysregulation. This condition occurs when the autonomic nervous system, which controls involuntary bodily functions, does not function properly. This can lead to episodes of tachycardia, especially in response to stress or changes in posture. It is also worth considering that your previous medical history, including the misdiagnosis and subsequent treatment for gastrointestinal issues, may have contributed to your current symptoms. Stress and discomfort from physical health issues can sometimes lead to heightened awareness of bodily sensations, including heart rate.

Given that your resting heart rate is typically around 80 beats per minute and can spike above 100 during episodes, it is essential to monitor these occurrences. While your static electrocardiogram (ECG) showed a regular heart rhythm, it may be beneficial to undergo additional testing, such as a 24-hour Holter monitor, which can capture your heart's activity over an extended period. This can help identify any irregularities that may not be present during a standard ECG.

In terms of management, lifestyle modifications can play a significant role in reducing episodes of tachycardia. Regular physical activity, a balanced diet, adequate hydration, and stress management techniques such as mindfulness or yoga can be beneficial. Additionally, avoiding stimulants like caffeine and nicotine may help stabilize your heart rate.

If your symptoms persist or worsen, it is crucial to follow up with your healthcare provider. They may consider referring you to a cardiologist or a specialist in autonomic disorders for further evaluation. It is also essential to communicate any new symptoms or changes in your condition to your doctor, as this information can guide appropriate treatment strategies.

In conclusion, while rapid heartbeat can be concerning, understanding its potential causes and implementing lifestyle changes can significantly improve your quality of life. It is essential to remain proactive about your health and seek further evaluation if necessary. Remember, you are not alone in this experience, and many patients face similar challenges. With the right support and management, you can work towards achieving a more stable and comfortable heart rhythm.

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