Sinus Rhythm Issues: Is It Heart Disease or Lung Problems?

Daily suspected sinus arrhythmia?

Hello, I have asthma and recently I've been experiencing sinus tachycardia whenever I walk a little, often sitting down my heart rate is around 120.
I'm concerned whether I might have coronary artery disease or a cardiopulmonary condition.
However, lying down seems to help a bit, but as soon as I start walking again, the symptoms return.
Ever since I started taking sedatives, my blood pressure has been around 160.
I used to be a healthy person, and now I've changed like this.

He Tong, 40~49 year old female. Ask Date: 2022/11/02

Dr. Wu Xueming reply Cardiology

Many factors in daily life can contribute to this condition, such as emotions, stress, irregular sleep patterns, or excessive intake of caffeinated beverages.
It is advisable to adjust your lifestyle and engage in regular exercise.
However, if symptoms persist, it is recommended to seek further evaluation at a hospital.

Reply Date: 2022/11/02

More Info

Understanding the relationship between sinus rhythm issues, potential heart disease, and lung problems is crucial, especially for someone with a history of asthma and recent symptoms of increased heart rate. Based on the information provided, it appears that you are experiencing episodes of sinus tachycardia, which is characterized by a heart rate exceeding 100 beats per minute. This can occur for various reasons, including anxiety, physical exertion, or underlying medical conditions.

Sinus Rhythm and Its Implications
Sinus rhythm refers to the normal rhythm of the heart, originating from the sinoatrial (SA) node, which is the heart's natural pacemaker. When the heart is in sinus rhythm, it means that the electrical impulses are being generated correctly, leading to a coordinated contraction of the heart chambers. However, when there is an increase in heart rate, such as in your case where it reaches 120 beats per minute upon exertion, it can indicate several underlying issues.

Potential Causes of Increased Heart Rate
1. Physical Activity: It is normal for heart rates to increase with physical activity. However, if you are experiencing significant increases in heart rate with minimal exertion, it may warrant further investigation.

2. Anxiety and Panic Attacks: Given your history of panic disorder, anxiety can significantly affect heart rate. The body’s fight-or-flight response can lead to increased heart rates, especially during stressful situations or when anticipating physical activity.

3. Asthma: Asthma can lead to increased heart rates due to hypoxia (low oxygen levels) during an asthma attack. If your asthma is not well-controlled, it can lead to episodes of breathlessness and increased heart rate.

4. Medications: You mentioned taking sedatives, which can sometimes affect blood pressure and heart rate. If your blood pressure has risen to 160, this could be a side effect of medication or a response to anxiety.

5. Cardiac Issues: While your heart appears to be functioning normally based on previous tests, persistent symptoms like tachycardia and chest discomfort should not be overlooked. Conditions like coronary artery disease or other cardiac issues can present with similar symptoms, especially in individuals with risk factors.

Recommendations
1. Consult a Healthcare Provider: It is essential to discuss your symptoms with a healthcare provider, preferably a cardiologist, who can perform a thorough evaluation. This may include an electrocardiogram (ECG), echocardiogram, or stress testing to assess your heart's function during physical activity.

2. Asthma Management: Ensure that your asthma is well-managed. Poor control of asthma can lead to increased heart rates and other complications. Discuss your current asthma management plan with your healthcare provider.

3. Monitor Symptoms: Keep a diary of your symptoms, noting when they occur, their duration, and any associated activities. This information can be valuable for your healthcare provider in diagnosing the issue.

4. Lifestyle Modifications: Consider lifestyle changes that may help manage anxiety and improve overall cardiovascular health. Regular exercise, a balanced diet, and stress-reduction techniques such as mindfulness or yoga can be beneficial.

5. Medication Review: Have your medications reviewed by your healthcare provider to ensure they are appropriate for your current health status and to discuss any potential side effects that may be contributing to your symptoms.

Conclusion
In summary, while sinus rhythm itself is a normal heart rhythm, the symptoms you are experiencing, particularly the increased heart rate and associated anxiety, should be evaluated by a healthcare professional. It is essential to rule out any underlying cardiac issues while also addressing your asthma and anxiety management. With appropriate medical guidance and lifestyle adjustments, you can work towards better health and symptom control.

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