Rapid Heartbeat: Is It Related to Gastrointestinal Issues?

Heart rate issues?

24-hour cardiac monitoring, echocardiogram, perfusion imaging, exercise electrocardiogram, and electrocardiogram all indicate no issues.
Blood tests show elevated low-density lipoprotein cholesterol (LDL) by 10.
There are no thyroid problems.
I usually do not exercise much, occasionally walking for half an hour.
I used to stay up late frequently, but I have changed my routine to go to bed early and wake up early, having stayed up late only 2-3 times in the past six months.
My diet is very controlled (low oil, low fried foods, low salt), and I do not drink alcohol.
I smoke (almost a pack a day).
I undergo a gastrointestinal endoscopy every two years, which has shown only mild inflammation.
Recently, I have been feeling unwell in my gastrointestinal tract, with bowel movements that are loose.
My resting heart rate is usually around 80 beats per minute, but today after breakfast, it rose to 100 beats per minute, and I felt quite uncomfortable, almost fainting.
I am more concerned about my heart rate, which used to be around 70 beats per minute but is now consistently around 80.
I also experience some chest tightness and feel weaker, though I do not experience shortness of breath.
The doctor at Chang Gung suggested that my increased heart rate might be related to gastrointestinal issues or autonomic nervous system problems.
I would like to ask the doctor if my increased heart rate is indeed caused by gastrointestinal issues.
This has been troubling me for almost a year.

Mr. Wu, 30~39 year old female. Ask Date: 2016/10/25

Dr. Lin Jixiong reply Cardiology

Thank you for your inquiry.
For gastrointestinal discomfort and irregular bowel movements, I recommend visiting a gastroenterology clinic.
A gastroenterologist will provide treatment and recommendations based on your symptoms.
Sometimes, when the body is experiencing discomfort, it can affect heart rhythm, leading to sensations such as rapid heartbeat or chest tightness.
If these symptoms impact your daily life, I suggest consulting a cardiology clinic.
A cardiologist will assess your symptoms and provide appropriate treatment and recommendations.

Reply Date: 2016/10/25

More Info

Understanding the relationship between gastrointestinal issues and rapid heartbeat can be complex, as both systems are interconnected in various ways. Based on your description, it seems you have been experiencing a range of symptoms, including rapid heartbeat, gastrointestinal discomfort, and changes in bowel habits. Let's break down these symptoms and explore their potential connections.

Gastrointestinal Issues and Heart Rate
Gastrointestinal (GI) problems can indeed lead to symptoms such as rapid heartbeat (tachycardia). This phenomenon can be attributed to several factors:
1. Vagal Response: The vagus nerve plays a crucial role in regulating heart rate and digestion. When the stomach is distended or irritated, it can stimulate the vagus nerve, leading to changes in heart rate. This is often referred to as the "gut-heart connection."
2. Anxiety and Stress: Many individuals experience anxiety or stress related to gastrointestinal discomfort. This anxiety can trigger the body's "fight or flight" response, leading to an increased heart rate. Your mention of feeling faint and having a sense of discomfort after eating could be exacerbated by anxiety related to your GI symptoms.

3. Inflammation: Chronic inflammation in the gastrointestinal tract can lead to systemic effects, including changes in heart rate. If you have a history of mild inflammation in your GI tract, this could potentially contribute to your symptoms.

4. Dehydration and Electrolyte Imbalance: If you are experiencing diarrhea or changes in bowel habits, you may be at risk for dehydration or electrolyte imbalances, both of which can affect heart rate.

Symptoms and Monitoring
You mentioned that your heart rate has increased from the 70s to the 80s, and you are experiencing feelings of heaviness in your chest. While these changes may seem minor, they can be significant, especially if they are accompanied by other symptoms like dizziness or faintness. It is essential to monitor these symptoms closely.

- Daily Monitoring: Keep a log of your heart rate, symptoms, and any dietary changes. Note when your heart rate increases and what you were doing at the time. This information can be valuable for your healthcare provider.

- Dietary Considerations: You mentioned eating a diet low in oil, salt, and fried foods. However, certain foods can still trigger gastrointestinal discomfort and potentially affect heart rate. Foods that are high in sugar or caffeine, for example, can lead to rapid heartbeats.

Recommendations
1. Consult a Gastroenterologist: Since you have a history of gastrointestinal issues, it may be beneficial to revisit your gastroenterologist. Discuss your current symptoms and any changes in your bowel habits. They may recommend further testing, such as an endoscopy or imaging studies, to assess for any underlying conditions.

2. Cardiology Follow-Up: Given your concerns about heart rate, a follow-up with your cardiologist may also be warranted. They can evaluate whether your symptoms are related to an underlying cardiac condition or if they are primarily gastrointestinal in nature.

3. Lifestyle Modifications: Consider incorporating regular physical activity into your routine, as exercise can help regulate heart rate and improve overall cardiovascular health. Additionally, managing stress through relaxation techniques, such as deep breathing or mindfulness, may help alleviate both gastrointestinal and cardiac symptoms.

4. Smoking Cessation: Since you mentioned smoking, it is crucial to consider quitting. Smoking can exacerbate both gastrointestinal issues and cardiovascular problems.

5. Hydration and Nutrition: Ensure you are adequately hydrated, especially if you are experiencing changes in bowel habits. A balanced diet rich in fiber can help regulate bowel movements and may improve gastrointestinal health.

Conclusion
In summary, while your rapid heartbeat may be related to gastrointestinal issues, it is essential to consider other factors such as anxiety, inflammation, and lifestyle habits. Close monitoring of your symptoms and open communication with your healthcare providers will be key in determining the underlying cause and appropriate treatment. If your symptoms persist or worsen, do not hesitate to seek medical attention promptly.

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