All you need to know about Palpitations
Palpitations are a patients description of an abnormal heart sensation. Palpitations can result from a heart rhythm abnormality such as atrial fibrillation, atrial flutter or ectopic beats , but may result from a normal heart beat (sinus rhythm) appearing to beat more quickly or strongly (such as during peak exercise).
There are a few red-flag symptoms to look out for which should prompt urgent onward evaluation. These include:
If you have any of these symptoms, particularly if they persist for over 5 minutes despite resting, then you may need to arrange an urgent appointment to see a cardiologist for further assessment and review. If you feel very unwell with these symptoms and they persist, it may be necessary to call an ambulance.
If your palpitations are only short-lived, or only occur in isolated short runs, for example a sensation of skipped beats or strong heart beats, it is possible you may have ectopic beats.
Palpitations are usually investigated by taking a thorough clinical history which will usually give clues into the likely possible diagnoses. Where needed, other tests may be done including:-
Dr Lim will be able to arrange these tests for you, and it is also possible that Dr Lim’s team may be able to post out Long Term Monitoring to your home or office, with clear instructions on how to fasten the equipment before posting this back for Dr Lim’s review before your initial clinical appointment. This can often save some time and further consultations if the diagnosis can be clearly made on this initial monitor.
To arrange testing for palpitations, please contact Dr Lim’s PA on 0207 042 1789, or email: pa@drboonlim.co.uk. Dr Boon Lim is an Palpitations expert in London.
I cannot travel to London to see Dr Lim, can I still be reviewed by Dr Lim to discuss palpitations?
Dr Lim is able to usually set up Skype or telephone consults to discuss your symptoms. He will be able to then plan a strategy of diagnostic investigations, including mobile investigations such as a long term ECG monitoring to help gain clarity on your diagnosis.
It would be extremely helpful if you have prior information, to summarise this in a note together with scanned copies of previous investigations, send by email to: pa@drboonlim.co.uk prior to the mobile consultation.
If you have palpitations, and would like a rapid assessment potentially with mobile Long Term ECG Monitoring sent to your home or office, please contact Dr Lim’s team on the link below:
Most people will feel palpitations sometime in their lives. Palpitations are a description of a patient’s own awareness of a heartbeat or rhythm. Palpitations can be felt as rapid beats, the stronger-than-normal heartbeats, or pauses/skipped heartbeats, This can be a “normal” experience, for example when running very hard or performing extreme physical exertion, or after knocking back 2 or 3 double expressos, or having too much alcohol.
Sometimes, palpitations may be associated with a normal heartbeat (or sinus rhythm), due to another factor such as anxiety or hypervigilance, but palpitations may also be associated with a heart rhythm abnormality such as ectopic beats, atrial flutter, atrial fibrillation or ventricular tachycardia. Strong heartbeat sensations due to slow heart rhythms (bradycardia) may also be felt as palpitations.
Palpitations are the patient’s experience of symptoms. These palpitations may occur in the presence of a normal rhythm (such as a normal feeling of “pounding” after exercise where the heart rate is high or just before sleep when the heart rate is low). Palpitations may also occur in the presence of arrhythmia (or an abnormal rhythm such as atrial fibrillation or ectopic beats).
Curiously some patients who suffer from arrhythmia, may not actually develop palpitations, particularly if the arrhythmia is well rate controlled. For example, a patient who has atrial fibrillation with an average heart rate of 80bpm may not actually experience any palpitations! Instead, the only symptom of atrial fibrillation is the increased fatigue or slight exertional breathlessness, or perhaps nothing at all!
Tiredness is a form of stress – and given that stress can affect the autonomic nervous system, it can cause palpitations. In my experience, patients often experience a particular form of palpitations, ectopic beats (both atrial ectopic beats and ventricular ectopic beats) when transitioning from a state of extreme exercise to rest. For example, several hours after a heavy workout, following a large meal at dinner, palpitations may be felt whilst going to sleep.
This is due to the rapid transition between a flight or fight state (sympathetic) to a rest-and-digest (parasympathetic or vagus), and this transition creates the changing autonomic state that triggers heart rhythm abnormalities.
Not necessarily. During a heart attack its possible to feel a sensation of “palpitations” as the heart beatmay race and be felt as beating stronger. However, having palpitations alone is not usually a sign that you are developing a heart attack. More typical symptoms of a heart attack include chest pain, shortness of breath, feeling nauseous or sweaty.
The first step that needs to be taken is to make a diagnosis. It’s important to know if there is an underlying heart rhythm abnormality that is causing palpitations. These diagnostic steps start usually with a clinical history and examination, but includes some diagnostic tests such as an ECG, Holter, echocardiogram. Rarely palpitations (which occur once every few weeks or months) may be more difficult to capture on a short term recording – in these cases, it may be good for you to purchase a mobile ECG recording device such as an Apple Watch series 4 or above or an AliveCor Kardia Mobile device, both of which can record a medical grade ECG and store this on your phone to show your doctor.
Once a diagnosis is clarified, then your doctor can either reassure you (if palpitations are associated with a “normal” rhythm) or treat you with appropriate medications, or more invasive approaches like a catheter ablation, which can often lead to a “cure” for palpitations such as a supraventricular tachycardia or atrial flutter
If the palpitations are persistent and cause fainting, extreme lightheadedness, chest pain or shortness of breath, please do call the emergency services and consider getting yourself admitted to hospital for urgent care.
It depends on what your palpitations are. It is a good idea to learn how to check your pulse rate. If you have a normal heart rate, and have intermittent palpitations only, then it may well be safe to exercise, but try not to exert yourself to your maximal capacity. However, if you have a resting heart rate that is already above 100bpm (for example in Atrial Flutter or Atrial Fibrillation) then you should only consider doing mild to moderate exercise, keeping your heart rate under observation if you can through a monitor, or learn how to check your pulse so you can keep an eye on your heart rate.
In general, you should not aim to push your heart rate beyond your maximum target heart rate. The formula for this is simple. 220 – age. For example if you are 50 years old, your maximum target heart rate should be 220-50 = 170bpm.
In general, the aerobic (fat burning) level of exercise maintains your heart rate between 60-80% of your maximum target heart rate. Again if you are 50 years old, then keeping your heart rate at 60% – 80% of 170bpm is a range between 102 to 136bpm.
Yes it can. Anxiety creates significant stress, and this triggers release of adrenaline and cortisol, which may drive a higher-than-normal heart rate and also trigger arrhythmia. If the stress and anxiety is significant, then palpitations may be felt all day
In general it is useful to know your triggers. You may recognize specific food triggers of palpitations, for example spicy foods, caffeinated drinks, or alcohol, then avoiding these types of triggering foods is recommended. However, there are other situations which may trigger palpitation in relation to food intake which are not specific to any particular food product.
This can be mainly to do with a full stomach, for example when having a very large meal. Other non-meal factors, such as heavy exercise or a heavy long day at work, followed by a reasonably large meal, can be the trigger of palpitations later on in the evening or at night, when there is a significant transition between the fight-or-flight to the rest-and-digest components of the autonomic nervous system.
Emergency doctors can help make you arrive at a clear diagnosis with a simple ECG. Please do take a copy or if not, capture a photograph of that all-important ECG on your phone. It may be the only documentation of the palpitation you may get ! This is crucially important for your cardiologist (specifically electrophysiologist – a cardiologist with a specialized interest in palpitations) to be able to make appropriate onward treatment recommendations at a later stage.
If you are in persistent tachycardia, the emergency doctor can give you specific treatment for your condition. For example if you have a supraventricular tachycardia (SVT), you can be given a drug called adenosine which is highly successful at terminating or stopping the SVT. You can usually be started on a drug immediately such as a beta blocker (something that ends in a – olol, e.g. bisoprolol, metoprolol, or calcium blocker such as verapamil or diltiazem) to help minimize further recurrences, and should be asked to be sent an outpatient urgent appointment to see an electrophysiologist.
Typically, unless you are significant recurrent symptoms that cannot be resolved in accident and emergency, you will be discharged home the same day or the day after with an appointment made to see a cardiologist afterwards.
If you have atrial fibrillation or atrial flutter diagnosed during the admission, you may be asked to start taking anticoagulant medications. These are drugs such as apixaban, edoxaban, rivaroxaban, and dabigatran.
