Which Doctor to Consult for a Sustained, Rapidly Racing Heart Rate at Rest?

Introduction

A heart that suddenly races while you are sitting still or lying down is not something to brush aside. When your heart beats rapidly without any obvious cause — no exercise, no excitement — and this feeling does not settle on its own, it requires proper medical evaluation. This is especially true when the rapid heartbeat is accompanied by chest pain, breathlessness, dizziness, fainting, sweating, or weakness.

Knowing which doctor to consult can save crucial time. Depending on your symptoms and their severity, you may need an Emergency Physician first for immediate stabilisation, a Cardiologist for detailed heart rhythm evaluation, an Electrophysiologist for complex or recurrent arrhythmias, or an Endocrinologist if the cause is linked to thyroid disease, low blood sugar, or other metabolic conditions.

This article helps patients and families in Hyderabad and across India understand when rapid heartbeat at rest is an emergency, which specialist to see, what tests to expect, and how PACE Hospitals provides comprehensive cardiac and electrophysiology care.

A sustained, rapidly racing heart rate at rest needs urgent evaluation. Visit an Emergency Department immediately if it occurs with chest pain, breathlessness, dizziness, fainting, sweating, severe weakness, or known heart disease. A Cardiologist evaluates tachycardia and arrhythmias, while an Electrophysiologist may be needed for recurrent rhythm problems. Thyroid or metabolic causes may need Endocrinology care.

The normal resting heart rate in adults is between 60 and 100 beats per minute. When the heart beats faster than 100 beats per minute at rest — a state called tachycardia — it may signal an underlying problem that needs medical attention, according to the American Heart Association.

A sustained rapid heart rate is one that does not resolve quickly on its own, is not triggered by physical exertion or a clearly identifiable temporary cause, and may recur or persist over minutes, hours, or longer. Unlike the temporary increase in heart rate after climbing stairs or during a stressful moment, a sustained resting tachycardia demands evaluation.

The heart's electrical system normally controls the rate and rhythm of every heartbeat. When part of this system misfires — whether due to a structural problem, an electrical circuit abnormality, a hormone imbalance, or a systemic illness — the result can be a heart rate that is too fast, too slow, or irregular.

Key types of tachycardia include:

• Sinus tachycardia — the normal pacemaker fires too fast, usually in response to fever, anaemia, dehydration, anxiety, or thyroid excess
• Supraventricular tachycardia (SVT) — abnormal electrical circuits in the upper chambers cause sudden bursts of very fast heartbeat
• Atrial fibrillation (AFib) — chaotic electrical signals in the atria cause an irregular and often fast heart rate
• Ventricular tachycardia (VT) — a potentially life-threatening rhythm originating in the lower chambers

Understanding the type of tachycardia is key to finding the right doctor and treatment.

Many people dismiss palpitations or a racing heart as anxiety or stress. While stress can indeed raise the heart rate temporarily, a sustained rapid heart rate at rest — particularly if it occurs without an obvious trigger or is accompanied by other symptoms — should never be assumed to be anxiety until a proper cardiac evaluation rules out an arrhythmia or structural heart condition.

According to NIH scientific studies on management of tachycardia, any persistent tachycardia can lead to tachycardia-induced cardiomyopathy — a condition where a chronically fast heart rate weakens the heart muscle over time. Early recognition and treatment can prevent this progression.

Untreated or unrecognised tachycardia can lead to:

• Heart failure — when the heart cannot pump blood effectively
• Stroke — particularly in atrial fibrillation, where blood clots can form in the atria and travel to the brain
• Sudden cardiac arrest — primarily a risk in ventricular tachycardia or ventricular fibrillation
• Syncope (fainting) — due to a drop in blood pressure during fast heart rates
• Tachycardia-induced cardiomyopathy — reversible with early treatment but serious if delayed

Recognising warning signs early and getting timely evaluation by the right specialist is the most important step a patient can take.

The table below helps you decide which doctor to consult first based on your symptoms.

An Emergency Physician is specifically trained to assess, stabilise, and manage patients who present with acute, life-threatening symptoms. For a rapidly racing heart rate at rest, an Emergency Physician should be the first point of contact when:

• The episode is ongoing and has not resolved on its own
• There is haemodynamic instability (low blood pressure, signs of shock)
• The patient cannot be safely transported to a clinic and needs immediate evaluation
• The rapid heartbeat is associated with any red-flag symptom listed above

In the Emergency Department, the Emergency Physician will:

• Place the patient on continuous cardiac monitoring
• Perform a 12-lead ECG immediately to identify the type of tachycardia
• Assess blood pressure, oxygen saturation, and clinical stability
• Order urgent blood tests (electrolytes, blood sugar, thyroid, cardiac enzymes)
• Decide whether immediate cardioversion, intravenous medication, or close observation is needed
• Involve a Cardiologist or Electrophysiologist for further management

Emergency care is the first line when tachycardia is accompanied by instability. Once the patient is stabilised, the Cardiologist takes over for definitive evaluation and long-term management.

A Cardiologist is the primary specialist for evaluating and managing most forms of tachycardia and arrhythmia in stable patients. Cardiology consultation is needed when:

• You have had one or more episodes of rapid heartbeat at rest that resolved on their own but were distressing
• Your General Physician found an abnormal heart rate or rhythm on examination or ECG
• You have a known heart condition (coronary artery disease, heart failure, valve disease, cardiomyopathy) and are experiencing palpitations
• Tachycardia is associated with dizziness or mild breathlessness but is currently stable
• You have risk factors for atrial fibrillation (high blood pressure, diabetes, obesity, age over 60, sleep apnoea )

The Cardiologist will conduct a thorough cardiac evaluation including an Electrocardiogram - ECG or EKG, echocardiogram (ultrasound of the heart), Holter monitoring, blood tests, and a detailed clinical history. Based on findings, the Cardiologist may:

• Start medications to control heart rate or restore normal rhythm
• Refer to an Electrophysiologist for complex arrhythmia management
• Advise lifestyle modifications and close follow-up
• Coordinate with other specialists if a non-cardiac cause is identified

For patients in Hyderabad, a Cardiologist at PACE Hospitals provides complete arrhythmia evaluation with access to advanced cardiac diagnostics and electrophysiology services under one roof.

An Electrophysiologist (EP) is a Cardiologist with additional sub-speciality training in the electrical system of the heart. They are the experts in diagnosing and treating complex heart rhythm disorders. Electrophysiology consultation is specifically indicated when:

• Episodes of rapid heartbeat are recurrent and do not respond to standard medication
• The Cardiologist suspects SVT, ventricular tachycardia, Wolff-Parkinson-White (WPW) syndrome, or other complex arrhythmias
• Atrial fibrillation requires rhythm control strategies, pulmonary vein isolation, or catheter ablation
• A decision is needed regarding an implantable cardiac defibrillator (ICD) or pacemaker
• An Electrophysiology (EP) study is required to map the electrical circuits of the heart precisely

According to NIH scientific reports on Electrophysiologic Study, an EP study is recommended for all patients with symptomatic, documented SVT to determine the mechanism of tachycardia and guide ablation. Catheter ablation — a minimally invasive procedure that creates tiny scars to block abnormal electrical pathways — can be curative for SVT, AFib, atrial flutter, and certain ventricular arrhythmias.

Patients with recurrent, drug-refractory, or life-threatening tachycardia should not delay Electrophysiology referral.

Not all rapid heartbeat at rest is caused by a primary heart rhythm problem. Several endocrine and metabolic conditions can trigger tachycardia, and these require Endocrinology input alongside or instead of Cardiology:

Hyperthyroidism (Overactive Thyroid)

The thyroid gland regulates the body's metabolism. When it produces excess thyroid hormone — a condition called hyperthyroidism — the heart is stimulated to beat faster. This can cause persistent sinus tachycardia or even atrial fibrillation. Associated symptoms include weight loss despite good appetite, excessive sweating, heat intolerance, hand tremors, and anxiety.

Thyroid function tests (TSH, T3, T4) are essential in any patient with unexplained tachycardia. If hyperthyroidism is confirmed, an Endocrinologist will manage the thyroid condition, while a Cardiologist addresses the arrhythmia if present.

Hypoglycaemia (Low Blood Sugar)

A drop in blood sugar — whether in a person with diabetes on insulin or oral medications, or rarely due to other causes — triggers the release of adrenaline (epinephrine), which causes the heart to race. This is often accompanied by sweating, trembling, hunger, pallor, and confusion.

If you are a known diabetic and notice a rapidly racing heart with cold sweats, weakness, and confusion, this is a medical emergency requiring immediate glucose administration and emergency care.

Adrenal Causes

A rare tumour of the adrenal gland called phaeochromocytoma can release sudden bursts of adrenaline, causing episodic rapid heartbeat, severe headache, sweating, and very high blood pressure. This is rare but should be considered if episodes are episodic, severe, and associated with hypertensive symptoms.

Anaemia

Severe anaemia forces the heart to beat faster to compensate for reduced oxygen-carrying capacity. A complete blood count (CBC) is a basic investigation in any patient with unexplained tachycardia.

An Endocrinologist should be involved if thyroid, adrenal, or metabolic causes are identified or suspected.

Tachycardia vs Normal Fast Heartbeat

Not every fast heartbeat is tachycardia in the clinical sense. The table below helps distinguish:

A combination of rapid heartbeat and chest pain at rest should always be treated as a potential emergency until proven otherwise. This combination can indicate:

• Acute coronary syndrome (heart attack or unstable angina) — reduced blood flow to the heart muscle causing both pain and an arrhythmia
• Ventricular tachycardia — especially in patients with prior heart disease, where chest pain and very fast heart rate signal a life-threatening arrhythmia
• Pulmonary embolism — a blood clot in the lung causes chest pain, breathlessness, and rapid heart rate simultaneously
• Aortic dissection — though rare, a tear in the aorta can present with chest pain and haemodynamic instability

Do not wait at home. Go directly to the Emergency Department. At PACE Hospitals, emergency cardiac care is available around the clock with immediate ECG, troponin testing, and cardiology consultation.

Dizziness and fainting during a rapid heart rate episode indicate that the fast heartbeat is compromising blood flow to the brain. This is a sign of haemodynamic compromise — the heart is beating too fast to fill properly and pump adequate blood to the body and brain.

This situation requires emergency evaluation. Possible causes include:

• Ventricular tachycardia — the most dangerous cause, arising from the lower heart chambers
• Very fast SVT — when heart rate exceeds 200 bpm, even SVT can cause near-fainting
• Atrial fibrillation with rapid ventricular response — common in patients with WPW syndrome
• Vasovagal syncope — not dangerous but requires evaluation to distinguish from dangerous arrhythmia

Patients who have fainted or nearly fainted during a fast heart rate episode should be assessed by both a Cardiologist and an Electrophysiologist to rule out ventricular arrhythmia.

Breathlessness occurring alongside a rapid heart rate at rest suggests that the tachycardia is either:

• Causing heart failure — a very fast rate prevents adequate cardiac filling, reducing output
• Related to pulmonary embolism — where both symptoms arise from the clot
• A symptom of underlying heart failure or cardiomyopathy — where the weakened heart beats faster to compensate
• Linked to severe anaemia — the lungs work harder alongside a faster heart to compensate for low haemoglobin

Breathlessness with tachycardia that is new, sudden, or severe warrants emergency evaluation. Do not attribute this combination to anxiety without a medical assessment.

Supraventricular tachycardia (SVT) is one of the most common arrhythmias causing episodes of sudden, rapid heartbeat at rest. According to NIH scientific studies on SVT, SVT involves abnormal electrical circuits in the upper heart chambers that cause heart rates typically between 150 and 220 beats per minute.

SVT is characterised by:

• Sudden onset — the heart rate jumps abruptly from normal to very fast
• Sudden termination — it can stop just as suddenly as it started
• Palpitations — a pounding, racing sensation in the chest or neck
• Dizziness — due to rapid heart rate reducing cardiac output
• May resolve spontaneously — but recurs in many patients

SVT is not immediately life-threatening in most cases, but repeated episodes reduce quality of life and require evaluation. If episodes are frequent, last more than 30 minutes, or are associated with fainting, prompt Electrophysiology referral is needed.

Catheter ablation — a procedure in which an Electrophysiologist uses catheters to identify and ablate the abnormal electrical pathway — is highly effective and often curative for SVT. The American Heart Association notes that catheter ablation is a well-established treatment for recurrent SVT.

Atrial fibrillation (AFib) is the most common sustained cardiac arrhythmia worldwide. In AFib, chaotic electrical signals cause the atria (upper chambers) to quiver rather than contract effectively. This creates an irregularly irregular heartbeat — a pattern that is distinctive and diagnosable on ECG.

Key facts about AFib and tachycardia:

• The ventricular rate in AFib can range from 90 to 180 beats per minute or higher
• The heartbeat feels irregular — not just fast but also unpredictable
• AFib significantly increases the risk of stroke because blood can pool in the left atrial appendage and form clots
• Risk factors include high blood pressure, age, diabetes, obesity, obstructive sleep apnoea, coronary artery disease, thyroid disease, and excess alcohol use

According to NIH scientific studies on Atrial Fibrillation, the management of AFib involves two parallel strategies:

1. Rate or rhythm control — medications or ablation to control the heart rate and restore normal rhythm
2. Anticoagulation (blood thinners) — to reduce stroke risk

A Cardiologist manages most AFib cases. An Electrophysiologist is consulted for catheter ablation (pulmonary vein isolation), complex rhythm management, and drug-refractory AFib.

If you notice that your rapid heartbeat is irregular — beats that seem to have no pattern — consult a Cardiologist promptly. AFib with a very fast ventricular rate, especially with breathlessness or chest pain, requires emergency evaluation.

Thyroid-Related Tachycardia

Hyperthyroidism — excess thyroid hormone — is one of the most common non-cardiac causes of tachycardia. The thyroid hormone directly stimulates the heart, accelerating the resting heart rate. In severe cases, it can trigger atrial fibrillation.

According to a PMC study on tachycardia in hyperthyroidism, sinus tachycardia is the most common cardiac manifestation of hyperthyroidism. The treatment of hyperthyroidism — through antithyroid medications, radioiodine, or surgery — usually normalises the heart rate.

Patients with unexplained tachycardia should always have thyroid function tests (TSH, free T4) as part of their workup.

Low Blood Sugar (Hypoglycaemia)-Related Tachycardia

In people on insulin or certain diabetes medications, a sudden drop in blood glucose triggers an adrenaline surge. This causes rapid heartbeat, sweating, trembling, hunger, and pallor. This is both a diabetes emergency and a cardiac symptom — the rapid heartbeat in this context is driven by the body's counter-regulatory hormones responding to low sugar.

Blood glucose monitoring is essential. If rapid heartbeat occurs in a known diabetic individual with suggestive symptoms, immediate blood sugar check and glucose administration are the priority, followed by Endocrinologist's review to adjust with medications and preventing recurrence.

When you experience a sustained, rapidly racing heart rate at rest, the following actions should be avoided:

• Do not ignore it and wait for it to pass — if it has not resolved within a few minutes and is accompanied by any red-flag symptom, seek medical care immediately
• Do not attempt self-medication — do not take anyone else's heart rate-lowering medicines, blood pressure tablets, sedatives, or herbal preparations without medical advice
• Do not consume caffeine or stimulants — tea, coffee, energy drinks, and certain cold remedies can worsen tachycardia
• Do not consume alcohol — alcohol can precipitate and worsen arrhythmias, including AFib
• Do not drive yourself to the hospital if you are experiencing dizziness, chest pain, or breathlessness — call for help or ask someone to drive you
• Do not dismiss it as anxiety without proper cardiac evaluation — anxiety is a diagnosis of exclusion after cardiac causes have been ruled out
• Do not stop prescribed heart medications abruptly — this can precipitate rebound arrhythmias
• Do not attempt vagal manoeuvres without prior medical instruction — certain manoeuvres can be used under medical guidance for specific arrhythmias but should not be performed independently at home during an unknown tachycardia.

The evaluation of a rapidly racing heart rate at rest involves a structured set of investigations aimed at identifying the type of tachycardia, its cause, and the degree of cardiac involvement.

Cardiac Tests

The treatment of a rapidly racing heart rate at rest depends entirely on the type of tachycardia, its cause, and the patient's overall clinical status. Treatment is always decided by a qualified doctor after proper evaluation.

Emergency Treatment (for unstable tachycardia)

• Synchronised electrical cardioversion — an electrical shock that resets the heart rhythm when the patient is haemodynamically unstable
• Intravenous medications — to slow the heart rate or restore normal rhythm under monitored conditions
• Defibrillation — for ventricular fibrillation or pulseless ventricular tachycardia (cardiac arrest scenario)

Medical Treatment (stable patients)

• Rate control medications — to reduce the ventricular rate in AFib or other arrhythmias (administered only under medical supervision)
• Rhythm control medications (antiarrhythmic drugs) — to restore and maintain normal sinus rhythm
• Anticoagulation (blood thinners) — for AFib to reduce stroke risk, based on individual risk stratification
• Thyroid treatment — antithyroid medications, radioiodine, or surgery when hyperthyroidism is the cause
• Treatment of underlying causes — anaemia correction, hydration, infection treatment, electrolyte replacement

Procedural and Interventional Treatment

• Catheter Ablation — a minimally invasive procedure where an Electrophysiologist uses catheters to locate and ablate abnormal electrical pathways. Highly effective for SVT, AFib, atrial flutter, and certain VTs. According to NIH scientific studies on PSVT, an electrophysiology study is recommended for all patients with symptomatic, documented SVT to strategise ablation
• Implantable Cardioverter Defibrillator (ICD) — an implanted device that monitors heart rhythm and delivers a shock if a dangerous arrhythmia is detected; indicated for high-risk ventricular arrhythmias
• Permanent Pacemaker — for certain rhythm disorders involving the conduction system
• AV Node Ablation with Pacemaker — for drug-refractory AFib with rapid ventricular response

All treatment decisions are personalised to the individual patient by the treating Cardiologist and Electrophysiologist.

PACE Hospitals, Hyderabad, offers a comprehensive multidisciplinary approach for patients presenting with rapid heart rate, palpitations, tachycardia, and complex arrhythmias.

Services Available at PACE Hospitals for Tachycardia and Arrhythmia

• 24/7 Emergency Department with cardiac monitoring, immediate 12-lead ECG, defibrillation, and emergency cardioversion capability
• Cardiology Department with experienced Cardiologists for complete arrhythmia evaluation, echocardiography, Holter monitoring, and tachycardia management
• Cardiac Electrophysiology Unit for proper EP studies, catheter ablation (radiofrequency and cryoablation), ICD implantation, pacemaker insertion, and complex rhythm management
• Endocrinology Department for evaluation and management of thyroid-related tachycardia, diabetes-related hypoglycaemia, and other metabolic causes
• Cardiology Diagnostics — advanced 12-lead ECG, 2D echocardiography, cardiac stress testing, and 24/7 Holter monitoring
• Cardiac Surgery support for patients requiring surgical arrhythmia management (Maze procedure for AFib)

At PACE Hospitals, the Cardiology and Electrophysiology teams work in close coordination with Emergency Medicine and Endocrinology to ensure every patient with tachycardia receives an accurate diagnosis and the most appropriate, evidence-based treatment.

• Experienced Cardiologists and Electrophysiologists with expertise in diagnosing and treating all forms of tachycardia, SVT, atrial fibrillation, ventricular arrhythmia, and complex rhythm disorders
• Dedicated Cardiac Electrophysiology Lab equipped for EP studies, catheter ablation, and device implantation
• Advanced Cardiac Diagnostics — all investigations available on-site, including ECG, Holter monitoring, echocardiogram, cardiac MRI, and electrophysiology study
• 24/7 Emergency and Critical Care with immediate cardiac response capability for unstable arrhythmias
• Multidisciplinary Team — Cardiologists, Electrophysiologists, Endocrinologists, Emergency Physicians, and Cardiac Surgeons work together for complex cases
• Patient-Centred Care — clear communication, transparent treatment planning, and dedicated support for patients and families
• Convenient Location in Hyderabad with easy accessibility and an online appointment booking system
• Adherence to International Guidelines — evidence-based protocols aligned with American Heart Association, Heart Rhythm Society, and European Society of Cardiology standards

A sustained, rapidly racing heart rate at rest is not a symptom to dismiss. Whether the cause is an electrical problem in the heart (SVT, AFib, VT), a thyroid or metabolic condition, or a structural heart issue, early and accurate diagnosis is essential to prevent complications including heart failure, stroke, and sudden cardiac events.

The right doctor depends on an individual symptoms:

• Emergency Department immediately if red-flag symptoms are present
• Cardiologist for arrhythmia evaluation, ECG, echo, and tachycardia management
• Electrophysiologist for recurrent, complex, or drug-refractory arrhythmias
• Endocrinologist if thyroid, low blood sugar, or metabolic cause is suspected

PACE Hospitals, Hyderabad, brings all these specialists together under one roof for complete, coordinated tachycardia care.

Frequently Asked Questions (FAQs)

Tachycardia is a medical emergency when it is accompanied by chest pain, breathlessness, dizziness, fainting, very high heart rate (above 150 bpm at rest), haemodynamic instability, or when it occurs in someone with known heart disease. According to the American Heart Association, ventricular tachycardia and ventricular fibrillation are potentially life-threatening and require immediate care. Not all tachycardia is an emergency, but any sustained rapid heart rate at rest that you cannot explain — or that does not resolve — should be evaluated without delay.

Yes. If you experience a sustained fast heartbeat at rest, particularly if it recurs, lasts more than a few minutes, or causes symptoms such as dizziness, chest discomfort, or breathlessness, a Cardiologist should evaluate you. A Cardiologist will perform an Electrocardiogram - ECG or EKG, Holter monitor, echocardiogram, and blood tests to identify the cause. Many arrhythmias, if diagnosed early, are manageable with medication or ablation. Do not attribute sustained tachycardia to stress or anxiety alone without proper evaluation by a Cardiologist.

SVT, or supraventricular tachycardia, is an arrhythmia originating in the upper chambers (atria) or conduction system above the ventricles. According to NIH scientific studies, Supraventricular Tachycardia (SVT) causes heart rates typically between 150 and 220 bpm, usually with sudden onset and sudden termination. Patients often describe a sudden pounding in the chest or neck, dizziness, and breathlessness. Although SVT is not usually life-threatening but requires evaluation by a Cardiologist. Recurrent SVT is managed by an Electrophysiologist, and catheter ablation can be curative. SVT is the most common arrhythmia in children and young adults.

Atrial fibrillation is the most common sustained heart rhythm disorder. In AFib, chaotic electrical signals cause the upper heart chambers to quiver rather than contract properly, leading to an irregular and often rapid heartbeat. According to NIH scientific studies on Atrial Fibrillation, AFib significantly increases stroke risk because blood can stagnate in the atria and form clots. Management involves rate or rhythm control and anticoagulation (blood thinners) to prevent stroke. AFib is managed by a Cardiologist, with Electrophysiologist involvement for ablation when needed.

Yes. Hypoglycaemia (low blood sugar) triggers an adrenaline surge in the body as a counter-regulatory response, which causes the heart to race rapidly. This is particularly relevant for people with diabetes who are on insulin or certain oral medications. Symptoms of hypoglycaemia-related tachycardia include cold sweats, trembling, hunger, pallor, and confusion alongside a racing heart. This is a medical emergency. If you are a known diabetic experiencing these symptoms, check blood sugar immediately and seek emergency care. An Endocrinologist should review your diabetes management to prevent future episodes.

The workup for tachycardia typically begins with a 12-lead ECG to identify the type of arrhythmia. A Holter monitor is used for 24–48 hours (or longer) to capture intermittent episodes. An echocardiogram assesses heart structure. Blood tests include a complete blood count, thyroid function tests, electrolytes, blood glucose, and cardiac troponin. For recurrent, unexplained, or complex arrhythmias, an Electrophysiology (EP) study is performed to map the heart's electrical system precisely. The NIH scientific studies on Sinus Tachycardia outlines a comprehensive evaluation approach for persistent tachycardia at rest.

Yes, a 12-lead ECG (electrocardiogram) is the most important first investigation for any patient presenting with a racing heart. The ECG records the electrical activity of the heart and can identify the type of tachycardia — whether it is sinus tachycardia, SVT, atrial fibrillation, ventricular tachycardia, or other arrhythmias. Ideally, the ECG should be captured during the episode for maximum diagnostic value. However, even a resting ECG between episodes can reveal underlying abnormalities such as WPW syndrome, long QT syndrome, or evidence of prior heart damage. An ECG is non-invasive, painless, and available at PACE Hospitals at all times.

Holter monitoring is recommended when tachycardia episodes are intermittent and not captured on a standard ECG. A Holter monitor is a small, portable device worn for 24–48 hours (or up to 7–14 days for extended monitoring) that continuously records the heart's electrical activity. It helps identify arrhythmias that occur during daily activities or at night. According to the NIH scientific studies on Sinus Tachycardia, 24-hour Holter monitoring is a standard part of evaluating persistent or recurrent tachycardia. If the Holter monitoring period is uneventful, longer-duration event monitors or implantable loop recorders may be considered.

Yes, tachycardia can be effectively treated, and in many cases it is fully manageable or even curable. The treatment depends on the type and cause. Sinus tachycardia resolves when the underlying cause (infection, anaemia, thyroid excess) is treated. Supraventricular tachycardia (SVT) can be managed with medication or cured with catheter ablation. Atrial fibrillation is managed with rate or rhythm control medications, anticoagulation, and potentially ablation. But ventricular tachycardia requires cardiac specialist treatment guidance with antiarrhythmic drugs, ablation, or ICD implantation depending on risk. Early diagnosis and appropriate specialist care are key to effective tachycardia management.

A sustained, rapidly racing heart rate at rest is a symptom that demands medical attention — not self-reassurance. Whether it points to a primary heart rhythm disorder such as SVT or atrial fibrillation, a metabolic cause such as hyperthyroidism or hypoglycaemia, or a structural cardiac problem, accurate diagnosis by the right specialist is the foundation of effective treatment.

The guiding principle is straightforward: go to Emergency if red-flag symptoms are present; consult a Cardiologist for systematic evaluation of arrhythmia; involve an Electrophysiologist for recurrent or complex rhythm problems; and include an Endocrinologist when thyroid or metabolic causes are suspected.

At PACE Hospitals, Hyderabad, an experienced, multidisciplinary team is equipped with the tools, expertise, and technology to evaluate every patient presenting with rapid heartbeat, palpitations, or tachycardia — from the first ECG to catheter ablation and long-term rhythm management.

Do not wait. Your heart rate at rest should be between 60 and 100 beats per minute. If it is consistently above that without cause, or if it races suddenly and severely, the time to act is now.