Heart Palpitations: Causes and Concerns - Cardiology

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Heart palpitations can be a concerning symptom, especially when they occur unexpectedly or without any apparent cause. It’s important to understand that palpitations can arise from a variety of factors, and while they can be related to heart conditions, they can also be influenced by other non-cardiac factors.

In your case, you mentioned experiencing heart rates in the 90s while sitting and over 100 beats per minute when standing or moving. This can be quite common and may not necessarily indicate a serious heart issue. Factors such as anxiety, stress, dehydration, caffeine intake, or even certain medications can lead to an increased heart rate. Given your history of panic disorder, it’s possible that anxiety could be contributing to your palpitations. Panic attacks can cause a surge of adrenaline, leading to a rapid heartbeat, which may feel like your heart is racing or pounding.

You also mentioned having mitral valve prolapse and mild regurgitation of the tricuspid valve. These conditions can sometimes be associated with palpitations, but they are often benign and do not lead to serious complications in many individuals. Mitral valve prolapse, in particular, is quite common and is usually not a cause for concern unless it is associated with significant regurgitation or other symptoms such as chest pain or shortness of breath.

It’s also worth noting that the sensation of your heart racing can be exacerbated by physical activity or even by simply standing up quickly, as this can cause a temporary increase in heart rate. If you find that your heart rate increases significantly with minimal exertion, it may be beneficial to discuss this with your healthcare provider to rule out any underlying issues.

Regarding your experience of feeling more fatigued upon waking, this could be related to several factors, including sleep quality, anxiety, or even sleep disorders such as sleep apnea. Poor sleep can lead to daytime fatigue and may also contribute to feelings of anxiety, creating a cycle that can be difficult to break.
In summary, while your palpitations and increased heart rate can be concerning, they may not necessarily indicate a serious heart condition, especially given your history of anxiety and the benign nature of your valve issues. However, it is essential to continue monitoring your symptoms and maintain open communication with your healthcare provider. They may recommend further evaluation, such as an echocardiogram or Holter monitor, to assess your heart function and rhythm more closely, especially if your symptoms persist or worsen.

If you experience any alarming symptoms such as chest pain, severe shortness of breath, or fainting, seek medical attention immediately. It’s always better to err on the side of caution when it comes to heart health.