Abnormal heart rhythms have three patterns, and the first is the easiest to figure out: You develop a sudden elevated heart rate with anxiety. Your device will show an abrupt heart rate acceleration, and when symptoms stop, the device should abruptly return to normal. This is usually shown as a spike in the graph of more than 30 to 40 bpm.
The second really depends on understanding your normal heart rate. In this pattern, the heart rate is exaggerated during rest or by an activity. If your heart rate while sleeping at night is typically 40 to 60 bpm, for example, but on a seemingly normal night it jumps to 70 to 90 bpm, you may have a form of an SVT called atrial tachycardia. In atrial tachycardia, the changing heart rate pattern is abnormal for you, it can last for longer periods of time, and it may occur without symptoms. The heart rate in atrial tachycardia is often more than 20 to 30 bpm faster than your normal heart rate would be for that same activity.
The last pattern is one in which the heart rate can vary dramatically from beat to beat; this is seen in people with a very abnormal heart rate, such as atrial fibrillation. In some people, the heart rate is mildly elevated, while in others it may be more than 100 bpm. The smartphone graphs a chaotic, abnormal pattern with broad swings in the tracing from beat to beat. This same pattern can be seen in people with very frequent extra beats from the upper and lower heart chambers.
If you’re using your smartphone to understand your heart, first get a sense of what’s normal for you over a number of days or weeks when you don’t have symptoms. When you develop symptoms, compare those smartphone graphs with the ones that you collected during a period when you felt normal. These reports will help you and your physician understand your heart and determine if your heart rhythm is behind your symptoms of anxiety, or if anxiety causes your heart to race.
If you are experiencing symptoms, contact your doctor, who will be able to treat problems related to anxiety as well as those caused by an abnormal heart rhythm in a variety of ways.
Here are two free heart rate monitor apps— ”AFibCheck”and”Heart Rate”,which can be downloaded and used after searching in the mobile app store.
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