Heart Palpitations: Causes, Symptoms, and Treatment Options

Palpitations are subjective perceptions of abnormal cardiac activity, frequently described as rapid, strong, or irregular heartbeats. They can occur in patients without significant cardiovascular pathology, as well as in the context of cardiac or systemic conditions requiring further investigation. Although, in most cases, palpitations are benign and self-limiting, in certain situations, they can indicate heart rhythm disorders or structural heart dysfunctions, necessitating rigorous medical evaluation.

This article explores in detail the etiology of palpitations, including cardiovascular, metabolic, hormonal, and psychogenic causes, as well as the pathophysiological mechanisms underlying this symptom. We will also analyze associated clinical manifestations, severity criteria, and risk factors involved in the occurrence of these episodes.

What are palpitations and how do they manifest?

Photo source: Shutterstock.com

Palpitations are subjective perceptions of heartbeats, felt as being accelerated, irregular, strong, or unusually intense. They can occur in the chest area, the neck, or even the epigastrium, and are described by patients as the sensation of the heart “skipping a beat,” “fluttering,” or “pounding” in the chest.

Cardiac activity is regulated by the heart’s electrical conduction system, which ensures coordinated myocardial contraction. Electrical impulses are generated by the sinoatrial node (SA node), considered the “natural pacemaker of the heart,” and are transmitted through the atrioventricular node (AV node) and the His-Purkinje system. Any disruption of this mechanism can lead to abnormal heart rhythm and, consequently, to palpitations.

Palpitations can occur either as a result of excessive cardiac excitation or through hypersensitivity of the autonomic nervous system, which modulates heart function. For example, the sympathetic nervous system stimulates cardiac activity (by releasing adrenaline), increasing heart rate and contraction strength, while the parasympathetic (vagal) system has the opposite effect, reducing heart rate.

Palpitations are not a standalone condition but rather a common symptom determined by a wide range of factors. They can be classified into three main categories:

1. Physiological (benign) causes:
   • Emotional stress, anxiety, panic attacks;
   • Intense physical exertion or sudden changes in body position;
   • Excessive consumption of caffeine, alcohol, nicotine, or sugary foods;
   • Dehydration or electrolyte imbalances (e.g., magnesium or potassium deficiency);
   • Sleep deprivation.
2. Cardiac causes:
   • Cardiac arrhythmias (e.g., supraventricular tachycardia, atrial fibrillation, ventricular premature beats);
   • Ischemic heart disease;
   • Myocarditis, heart failure, valvular diseases;
   • Severe arterial hypertension.
3. Extracardiac causes:
   • Hormonal imbalances (hyperthyroidism, menopause, pregnancy);
   • Hypoglycemia or unbalanced diabetes;
   • Severe anemia;
   • Use of certain medications (decongestants, bronchodilators, antidepressants, thyroid hormones);
   • Abuse of stimulant drugs (e.g., cocaine, amphetamines).

When to seek medical attention?

Although most palpitations are benign, it is important to consult a doctor when:

• Palpitations are frequent and prolonged;
• They occur suddenly and without a clear triggering factor;
• They are accompanied by chest pain, dizziness, syncope, dyspnea, or a feeling of suffocation;
• They occur in the context of a pre-existing heart condition;
• They are associated with severe hypotension.

In such cases, further investigations are necessary, such as electrocardiogram (ECG), 24-48h Holter monitoring, exercise stress test, or echocardiography, to rule out significant cardiac pathology.

The role of magnesium in the prevention and treatment of palpitations

[cta_produs style=”style_1″ product=”487467″ image=”https://aronia-charlottenburg.com/wp-content/uploads/2025/03/Rolul-magneziului-in-preventia-si-tratamentul-palpitatiilor.png”]

Magnesium is an essential mineral involved in over 300 biochemical reactions in the body, playing a central role in maintaining cardiac function and electrolyte balance. Magnesium is an important mineral for heart activity, contributing to:

1. Regulation of cellular excitability – Magnesium acts as a physiological antagonist of calcium, contributing to the relaxation of the heart muscle and preventing myocardial hyperexcitability.
2. Stabilization of heart rhythm – Magnesium deficiency is frequently associated with cardiac arrhythmias (e.g., polymorphic ventricular tachycardia, atrial fibrillation). Its administration can reduce the incidence of these disorders.
3. Modulation of the autonomic nervous system – Through its muscle-relaxing and stress-reducing effect, magnesium can help decrease excessive sympathetic stimulation, preventing anxiety-induced palpitations.
4. Maintenance of electrolyte balance – Magnesium interacts with other essential electrolytes, such as potassium and calcium, regulating the activity of cellular ion pumps.

Conversely, magnesium deficiency can occur as a result of:

• Excessive consumption of alcohol, caffeine, or ultra-processed foods;
• Diets low in magnesium;
• Chronic stress and anxiety;
• Use of diuretics or proton pump inhibitors (PPIs);
• Gastrointestinal disorders (e.g., malabsorption syndrome, Crohn’s disease).

There are several forms of bioavailable magnesium, each with a specific absorption profile and efficacy:

• Citrates and aspartates – excellent for rapid absorption;
• Magnesium glycinate – with a beneficial effect on stress and the nervous system;
• Magnesium taurate – useful in maintaining a normal heart rhythm;
• Magnesium orotate – with a positive impact on cardiovascular health;
• Magnesium oxide – less absorbable, but useful for basic supplementation.

Therefore, administering a magnesium complex, such as Premium 5 Magnesium Complex, with optimized absorption can be beneficial in reducing functional palpitations, especially in cases associated with anxiety, stress, or electrolyte deficiency.

Main causes of palpitations

From an etiologic perspective, palpitations can have cardiac and non-cardiac causes, each with different clinical implications. Cardiac causes include rhythm disorders, such as atrial fibrillation, supraventricular tachycardia, or ventricular and supraventricular premature beats. Structural pathologies, like valvular heart disease, dilated or hypertrophic cardiomyopathies, and ischemic heart disease, can also lead to palpitations, usually associated with other suggestive symptoms such as dyspnea, chest pain, or syncope episodes. In these cases, palpitations may indicate significant myocardial dysfunction and require thorough investigations to rule out severe underlying pathology.

Non-cardiac causes are much more common and include a wide range of factors that can influence the cardiovascular system’s activity. Stimulants like caffeine, alcohol, and nicotine can increase sympathetic tone and induce reflex tachycardia, accentuating the perception of heartbeats. Intense physical activity, although normally beneficial for cardiovascular health, can cause palpitations in cases of excessive autonomic nervous system reactivity.

Electrolyte imbalances – impact on the myocardium

Electrolyte imbalances, particularly hypokalemia and hypomagnesemia, contribute to myocardial electrical instability, favoring the onset of arrhythmias. Endocrine factors, such as hyperthyroidism, lead to an increase in basal metabolism and hyperstimulation of the sinoatrial node, which can induce sustained tachycardia. Furthermore, anxiety disorders and chronic stress are associated with increased levels of circulating catecholamines, which can lead to hyperadrenergic cardiac activity, subjectively perceived as palpitations.

Certain medications can have palpitations as an adverse effect, especially those that influence the autonomic nervous system or the heart’s electrical activity, such as beta-adrenergic bronchodilators, antihistamines, and some antidepressants. Moreover, risk factors predisposing to palpitations include advanced age, female sex – due to hormonal fluctuations, especially during menopause –, family history of cardiovascular diseases, obesity, and a sedentary lifestyle.

In other words, identifying these factors is essential for the prevention and control of palpitations, and in cases of frequent episodes or those accompanied by alarming symptoms such as dizziness, lightheadedness, or chest pain, detailed medical evaluation is necessary.

Symptoms associated with palpitations

Beyond the sensation of irregular heartbeats, palpitations can be accompanied by a series of other symptoms that provide important clues about their severity and cause. Frequently associated symptoms of palpitations include dyspnea (difficulty breathing), dizziness or vertigo, sweating, and anxiety. In some cases, you may experience chest pain or discomfort, fatigue, or weakness, and in more severe situations, even syncope (fainting) or pre-syncope.

The location of palpitations can vary. The most common are chest palpitations, often described as a “fluttering” or “pounding.” Cardiac patients may experience neck palpitations, perceived as a pulsing or beating sensation in this area. Additionally, palpitations in the solar plexus area can be associated with a feeling of pressure or discomfort in the upper chest.

Symptoms occurring simultaneously with palpitations may indicate a significant cardiac or systemic condition, requiring immediate medical evaluation. These symptoms include intense chest pain, especially if it radiates to the arms, neck, or jaw, severe dyspnea, episodes of loss of consciousness or syncope, as well as states of confusion or disorientation. These manifestations may suggest myocardial ischemia, severe arrhythmias, or other cardiovascular dysfunctions that require prompt diagnosis and treatment.

For adequate clinical evaluation, it is recommended to monitor palpitations episodes by noting the time of onset, duration, activity performed at that time, and associated symptoms.

Palpitations in specific situations

Photo source: Shutterstock

The context in which palpitations occur can provide relevant indications regarding their mechanism of production and possible underlying causes. Many people feel palpitations in the evening, especially before bedtime, a phenomenon explained by the decrease in adrenaline and cortisol levels, which reduces sympathetic tone and makes cardiac activity more perceptible. Additionally, the horizontal position can favor increased venous return to the heart, leading to an increase in end-diastolic volume and, consequently, a more pronounced perception of heartbeats.

Nocturnal palpitations, which occur during sleep or cause sudden awakening, can have multiple causes, including obstructive sleep apnea, which generates intermittent hypoxia and excessive sympathetic stimulation, gastroesophageal reflux, which can activate vagal reflexes that affect heart rhythm, and nocturnal anxiety, characterized by increased catecholamine secretion. Their occurrence in the presternal area may be correlated with atrial premature beats, usually benign, or may reflect an accentuated neurovegetative response associated with anxiety.

During pregnancy, increased circulating blood volume and cardiac output, along with hormonal changes, lead to a slightly increased heart rate, which can predispose to episodes of palpitations. These are usually physiological but require careful monitoring, especially if associated with other cardiovascular symptoms. Post-prandial palpitations can be explained by the redistribution of blood flow to the gastrointestinal tract and the release of digestive hormones that can influence heart rate.

In the context of physical exertion, tachycardia is a normal physiological response, determined by the increased oxygen demand of active muscles. However, severe, prolonged palpitations or those associated with other symptoms, such as dizziness, dyspnea, or chest pain, require further investigation to rule out underlying cardiac conditions.

Diagnosis of palpitations

Identifying the etiology of palpitations involves a rigorous diagnostic approach, based on correlating clinical manifestations with data obtained from paraclinical investigations. Initial evaluation consists of a detailed medical history, which assesses the frequency, duration, and character of palpitations, triggering or alleviating factors, as well as the presence of associated symptoms such as dyspnea, syncope, chest pain, or anxiety states. Concurrently, the physical examination includes measuring blood pressure and pulse, cardiac auscultation to identify any pathological murmurs or arrhythmias, and assessment for signs of heart failure or thyroid dysfunction.

Paraclinical investigations are essential for confirming a diagnostic suspicion. Electrocardiogram (ECG) is the primary method for assessing heart rhythm and can reveal specific abnormalities, such as supraventricular tachycardias, atrial fibrillation, or ventricular premature beats. For intermittent arrhythmias that cannot be captured on a standard ECG, Holter monitoring is used, which records the heart’s electrical activity for 24-48 hours or even longer, as needed. Echocardiography is used to assess the heart’s structure, detecting cardiomyopathies, valvulopathies, or ventricular dysfunctions that may be associated with palpitations.

Advanced investigations for arrhythmias – diagnostic methods

In complex cases or when arrhythmias remain unidentified by standard methods, advanced investigations may be necessary. Examples include electrophysiological study. This is an invasive procedure that directly assesses the function of the heart’s conduction system. It can guide potential therapeutic interventions, such as catheter ablation. Advanced cardiac imaging, such as cardiac MRI or cardiac CT scan, is indicated in cases where myocarditis, myocardial fibrosis, or congenital anomalies are suspected.

To rule out non-cardiac causes of palpitations, blood tests may be necessary. These include measuring thyroid hormones to identify hyperthyroidism. Additionally, determining serum electrolyte levels, particularly potassium and magnesium, and a complete blood count to detect possible anemia. The final diagnosis is based on integrating this data with the patient’s symptomatology. It is important to differentiate cardiac palpitations from other similar sensations. Examples include muscle tremors, hypoglycemia, or anxiety manifestations.

Treatment of palpitations

Photo source: Shutterstock

Once the diagnosis is established, the treatment of palpitations is individualized based on the underlying cause and severity of the symptoms. The therapeutic approach primarily aims to control triggering factors. In cases of palpitations associated with stress and anxiety, management includes cognitive-behavioral therapy and, in some situations, the use of anxiolytics or beta-blockers with symptomatic effects. Palpitations induced by the consumption of stimulants such as caffeine, alcohol, or nicotine can be significantly reduced by eliminating or reducing these factors.

If palpitations are caused by cardiac arrhythmias, treatment may involve administering beta-blockers to reduce heart rate or specific antiarrhythmics, depending on the type of arrhythmia. In atrial fibrillation, where there is an increased risk of thromboembolism, oral anticoagulants may be necessary to prevent thrombus formation. In cases where medication is ineffective or the arrhythmia is severe and recurrent, interventional procedures such as catheter ablation, which aims to eliminate the ectopic foci responsible for the arrhythmia, or electrical cardioversion, used to restore sinus rhythm in persistent supraventricular arrhythmias, may be recommended.

Regardless of the underlying cause, lifestyle modifications play an essential role in managing palpitations. Adopting a balanced diet, rich in essential electrolytes (magnesium, potassium), regular moderate-intensity physical exercise, improving sleep quality, and effective stress management techniques can reduce the frequency of episodes and improve cardiovascular prognosis. Periodic symptom monitoring and regular medical check-ups are essential for adjusting treatment and preventing complications associated with persistent arrhythmias.

Prevention of palpitations

Preventing palpitations involves a holistic approach to cardiovascular health. Therefore, reducing the consumption of stimulants such as caffeine, alcohol, and nicotine can have a significant impact. At the same time, adopting a balanced diet, rich in foods with high magnesium and potassium content, such as bananas, avocados, and nuts, can help maintain electrolyte balance.

Secondly, stress management plays a crucial role in preventing palpitations. Establishing a regular sleep schedule is also important, as insufficient sleep can increase your susceptibility to stress and palpitations.

For individuals with medical conditions that predispose them to palpitations, prevention involves strict adherence to prescribed treatment and regular monitoring of relevant parameters. Avoiding specific triggers, identified through self-monitoring and keeping a symptom journal, can significantly reduce the frequency of palpitations.

Finally, a holistic approach to health, including maintaining a balance between work and personal life and cultivating positive social relationships, can contribute to reducing the risk of palpitations.

Photo source: Shutterstock

In what situations do palpitations require immediate medical attention?

Despite the fact that most palpitations are benign and self-limiting, there are situations where they can indicate severe cardiovascular pathology, requiring emergency medical evaluation.

Palpitations associated with intense chest pain, precordial pressure sensation, severe dyspnea, pronounced dizziness, loss of consciousness, cold sweats, marked pallor, or confusion may suggest acute myocardial ischemia, malignant arrhythmias, or critical hemodynamic dysfunction. These manifestations may occur in the context of acute coronary syndrome, pulmonary embolism, or acute heart failure, requiring prompt medical intervention.

Certain conditions increase the likelihood that palpitations are an expression of a significant rhythm disorder. These include the sudden onset of palpitations in patients with a history of cardiovascular disease, persistent sustained tachycardia (>120 bpm at rest) that does not resolve spontaneously, as well as the occurrence of palpitations during intense physical exertion, particularly in elderly or untrained patients. In these situations, palpitations may indicate underlying cardiac dysfunction, such as ventricular tachycardia, rapid atrial fibrillation with uncontrolled ventricular response, or other arrhythmias with decompensatory potential.

Emergency evaluation for palpitations – initial investigations

In an emergency evaluation for palpitations, initial investigations include continuous cardiac monitoring, emergency electrocardiogram, and blood tests. These include determination of serum electrolytes, cardiac markers (troponins, CK-MB), and thyroid function. These tests allow for rapid identification of possible electrolyte imbalance, acute myocardial ischemia, or thyroid dysfunction, which can be contributing factors.

To reduce the risk of severe palpitations, strict adherence to prescribed treatment for pre-existing cardiac conditions is essential. It is also important to monitor blood pressure and heart rate at home. Known triggering factors must be avoided. Examples include excessive stress, consumption of stimulants, or uncontrolled physical exertion. For patients with diagnosed arrhythmias, regular follow-up by a cardiologist is essential. Furthermore, adjusting treatment based on symptom progression is important for preventing complications.

Palpitations – causes and the importance of prevention

Palpitations, although often harmless, can be a warning sign for more serious cardiac problems. Therefore, understanding the causes, symptoms, and prevention methods for palpitations is essential for effectively managing your cardiovascular health. Adopting a healthy lifestyle, effective stress management, and careful symptom monitoring can also significantly minimize the frequency and intensity of palpitations.

In the future, research in cardiology may bring new diagnostic and treatment methods for palpitations. The development of more advanced portable cardiac monitoring devices could facilitate early detection of arrhythmias. Last but not least, personalized therapies based on the patient’s genetic profile could offer more effective solutions for managing palpitations.

Remember that if you experience frequent palpitations or those accompanied by worrying symptoms, it is crucial to seek prompt medical evaluation. Your heart health is vital, and a proactive approach to managing palpitations can make the difference between an active, energetic life and potentially serious complications.

References:

1. Raviele, A., et al. (2011). Management of patients with palpitations: a position paper from the European Heart Rhythm Association. Europace, 13(7), 920-934. https://academic.oup.com/europace/article/13/7/920/448314;

2. Thavendiranathan, P., et al. (2009). Does this patient with palpitations have a cardiac arrhythmia? JAMA, 302(19), 2135-2143. https://jamanetwork.com/journals/jama/article-abstract/184904;

3. Wexler, R. K., et al. (2017). Palpitations: Evaluation in the Primary Care Setting . American Family Physician, 96(12), 784-789. https://www.aafp.org/pubs/afp/issues/2017/1215/p784.html;

Photo source: Shutterstock.com