Explaining Arrhythmia & its effects on your heart health

Table of Contents

Arrhythmia occurs when your heart beats irregularly. It may beat too fast, too slow, or follow an inconsistent rhythm, disrupting the heart’s ability to pump blood efficiently throughout the body.

It’s normal for your heart rate to change depending on your activity; your heart beats faster when you exercise and slows down when you sleep. However, if the irregular heartbeat happens too often or becomes severe, it might be indicative of a more serious health issue. LifeCare Diagnostic Medical Centre has prepared an article to go over everything you need to know concerning arrhythmia, irregular heartbeat conditions, and how to see medical consultation or choose the right health screening package for better health.

How Common is Arrhythmia?

In Malaysia, cardiovascular disease accounts for over 23% of all deaths, making it one of the country’s leading health concerns. While not all cardiovascular issues are caused by arrhythmia, abnormal heart rhythms are a significant and growing contributor to heart-related complications such as stroke and heart failure.

Globally, the numbers are just as alarming. According to the European Heart Rhythm Association (EHRA), 1 in 3 people worldwide is at risk of developing a serious heart rhythm disorder in their lifetime. The most common type, atrial fibrillation (A-fib), has risen dramatically from 33.5 million cases in 2010 to 59 million in 2019, with projections estimating a 60% increase by 2050.

Types of Arrhythmia

For most adults, a resting heart rate between 60 and 100 beats per minute is normal. However, the rate can be affected by factors such as stress, anxiety, hormones, medication and how physically active you are. An athlete or more active person may have a resting heart rate as low as 40 beats per minute.

Before understanding arrhythmia, it’s helpful to know your heart rate numbers. A simple way to estimate your maximum heart rate is 220 minus your age.
Achieving Your Target Heart Rate Zone for Moderate Exercise (by Age)
Age
Target Heart Rate Zone
Estimated Maximum Heart Rate
20
100-170 bpm
200 bpm
30
95–162 bpm
190 bpm
35
93–157 bpm
185 bpm
40
90–153 bpm
180 bpm
45
88–149 bpm
175 bpm
50
85–145 bpm
170 bpm
55
83–140 bpm
165 bpm
60
80–136 bpm
160 bpm
65
78–132 bpm
155 bpm
70
75–128 bpm
150 bpm
Note: These numbers serve as general guidelines and may vary depending on individual fitness levels and health conditions.
Source: Target Heart Rates Chart, American Heart Association
Heart arrhythmias are commonly grouped based on the speed of the heartbeat:
A fast heartbeat (resting heart rate is greater than 100 beats a minute)

This occurs when your heart beats faster than normal at rest. Common types include:
  • Atrial fibrillation (A-fib)
  • Atrial flutter
  • Supraventricular tachycardia
  • Ventricular fibrillation
  • Ventricular tachycardia
A slow heartbeat (resting heart rate is less than 60 beats a minute)

This means the heart is beating slower than normal. In some cases, it can reduce blood flow to the brain and body. Common types include:
  • Sick sinus syndrome
  • Conduction Block

What Causes Arrhythmia?

Various heart-related conditions, chronic diseases, lifestyle factors, or hormonal imbalances can cause arrhythmia:

Common Symptoms of Arrhythmia

Arrhythmia can manifest in many ways—some subtle, others more intense. The symptoms often depend on the type and severity of the irregular heartbeat, as well as your overall heart health. In some cases, arrhythmias may occur without any noticeable signs, while in others, they can be frightening and disruptive.
Here are some of the most common symptoms of arrhythmia that individuals may experience:
Chest Pain or Discomfort
Chest pain can feel like a pressure, tightness, or burning sensation in the chest. It may occur during or after an episode of abnormal heart rhythm. While not always a sign of a heart attack, chest pain linked to arrhythmia should be taken seriously, especially if it is sudden or severe.
Shortness of Breath
If your heart is not pumping enough blood to the body, it may lead to difficulty breathing. You may feel breathless during physical activity or even while at rest. This is a common sign of both atrial fibrillation and ventricular arrhythmias, and may be more noticeable when lying flat.
Sweating (Unexplained or Excessive)
Cold sweat or clamminess may accompany arrhythmia events. These episodes are typically the result of the body reacting to a drop in blood pressure or inadequate blood flow. If sweating occurs alongside dizziness or chest pain, it may be a sign that urgent attention is needed.
Dizziness or Light-headedness
A racing or erratic heartbeat can temporarily reduce blood flow to the brain, causing sensations of light-headedness or even fainting. If you find yourself feeling woozy, unsteady, or disoriented, it could be linked to an underlying heart rhythm disorder.

While these symptoms can also be associated with other health conditions, they should never be ignored—particularly if they appear suddenly or in combination. LifeCare Diagnostic Medical Centre encourages everyone to seek prompt evaluation if you show signs of arrhythmia.

How is Arrhythmia Diagnosed?

Diagnosing arrhythmia requires precise tools to evaluate your heart’s electrical activity over time. LifeCare Diagnostic uses advanced, non-invasive technologies for accurate detection and diagnosis.

Electrocardiogram (ECG)

An ECG is a quick, painless test that records the heart’s electrical signals. It’s often the first step in detecting arrhythmia during a clinic visit.

Holter Monitoring

If arrhythmias are sporadic, your doctor may recommend wearing a Holter monitor that records your heart rhythm continuously. These often come in two forms:
  • Traditional Holter Monitor: Worn for 24 to 48 hours, this wired device captures short-term fluctuations in heart rhythm.
  • myPatch® Holter Monitor: A modern, wireless, waterproof, and mobile-accessible solution that can be worn for 1 to 14 days, allowing for greater comfort and extended monitoring—even during daily activities like showering or light exercise.

Event Recorder

This device is similar to a Holter monitor but is used for longer periods. You activate it when you feel symptoms, helping capture irregular events that may not appear during short-term tests.

When to See a Doctor

You should consult a doctor if you:

01

Regularly feel like your heart is skipping beats, racing, or beating unusually slow

02

Experience unexplained fainting spells, light-headedness, or dizziness

03

Have persistent chest pain or pressure

04

Notice worsening fatigue, especially with activity

05

Have a known history of heart disease or a family history of arrhythmias

LifeCare Diagnostic Medical Centre offers comprehensive assessments designed to evaluate overall cardiovascular health and to detect problems such as arrhythmia. This, and many others, are covered by the various health screening packages at LifeCare Diagnostic.

Early detection and management can significantly reduce your risk of complications like stroke, heart failure, or sudden cardiac arrest.

Treatment and Management Options

Arrhythmia treatment depends on the type, severity, and underlying cause of the condition. Management may involve one or more of the following:

  • Lifestyle Changes: Reducing caffeine and alcohol intake, quitting smoking, managing stress, and treating sleep apnea can help regulate heart rhythm.
  • Medications: Anti-arrhythmic drugs, beta-blockers, or anticoagulants (blood thinners) may be prescribed to control heart rate or reduce stroke risk.
  • Medical Procedures:
    • Catheter ablation – Destroys small areas of heart tissue that cause irregular signals.
    • Pacemaker – Helps regulate slow heartbeats.
    • Implantable Cardioverter Defibrillator (ICD) – Used for patients at risk of life-threatening arrhythmias.
  • Ongoing Monitoring: Routine check-ups and continuous heart health monitoring are essential to track treatment progress and detect changes in rhythm patterns.

Seeking treatment starts with understanding your condition. Get an expert opinion through a medical consultation before committing to any one management option.

Prevention and Living with Arrhythmia

While arrhythmia cannot be prevented entirely, many are manageable through lifestyle and medical care. Here’s how to live well with the condition:

Heart-Healthy Diets
Eat a diet rich in fruits, vegetables, and omega-3s

Exercise regularly
Always push your limits to achieve better health – as approved by your healthcare provider, if you have a condition
Limit Stimulants
Avoid taking excessive amounts of caffeine, alcohol, and certain medications
Key Health Indicators
Monitor blood pressure, cholesterol, and blood sugar levels
Manage Stress
Make use of breathing techniques, yoga, or counselling
Commitment To Treatment
Stick to your treatment plan and attend follow-up appointments
Be Aware
Know your triggers, track symptoms, and seek help when changes occur
Living with arrhythmia is not about restriction—it’s about balance and smart decision-making. With the right care, many individuals lead full, active lives.

Living By The Heartbeat

Recognising the symptoms, understanding the causes, and getting diagnosed early are critical steps in protecting your heart health.

LifeCare Diagnostic Medical Centre is committed to providing accurate testing, expert consultation, and personalised treatment plans to help you take control of your health – from your head to your heart. 

If you are experiencing unusual sensations in your heart, your body, or want peace of mind, reach out to us to learn how we can help you through our comprehensive health screening options

Health Screening Gold Male Package

RM 1,788.00

  • Arthritis Screening – Rheumatoid Factor
  • Blood Grouping – ABO
  • Coronary Risk Screening – hs-CRP
  • Diabetic Screening – Fasting Glucose & HbA1c
  • Full Blood Exam
  • Gastritis Screening – H-pylori
  • Hepatitis A, B & C Screenings
  • Kidney Function Test & eGFR
  • Lipid Profile
  • Liver Function Test
  • Syphilis Screening – RPR
  • Thyroid Screening – TSH
  • Colon Cancer – CEA
  • Gastrointestinal – CA72-4
  • Liver Cancer – AFP
  • Nose Cancer – EBV VCA IgA
  • Pancreas/Stomach Cancer – CA 19-9
  • Prostate Cancer – PSA
  • Full Urine Exam & Urine Microscopy
  • Urine Microalbumin
  • Abdominal & Pelvic Ultrasound
  • Basic Eye Assessment
  • Body Composition Analysis
  • Ear, Nose, Throat & Hearing Assessment
  • Exercise Stress Test & ECG
  • Chest X-Ray
  • Dietitian Consultation
  • Physical Examination & Doctor Consultation
  • Includes: Refreshment
  • The promotion packages must be redeemed within 3 months from the date of purchase. The complimentary will be given during the health screening appointment, while stocks last.
  • Please wear clothing that allows easy access to the upper arm for blood-taking.
  • Fasting is required for a minimum of 6 hours before the check-up; however, during this fasting period, you are allowed to drink plain water. This requirement is specifically applicable to blood tests for lipid profile & fasting glucose, as well as abdominal ultrasound.
  • If you are taking hypertension medicine, please continue to do so before your visit.
  • If you have any pre-existing medical conditions, kindly bring along your test results or reports for the doctor’s review and assistance in diagnosis.
  • The health screening process will take approximately Half Day (4-6 hours), depending on the specific tests you are undergoing.
  • Medical results will be available on the same day, along with same-day consultations with the doctor and dietitian to discuss your reports. If you prefer, you can reschedule your consultations for another day.
  • “Comprehensive Health Screening Packages” purchased online can be redeemed within 6 months from the date of purchase. Buy now and use it later.
  • To schedule an appointment, book your appointment via the LifeCare App only.
    📲 Download the LifeCare App: Download for iOS | Download for Android

Health Screening Gold Female Package

RM 1,988.00

  • Arthritis Screening – Rheumatoid Factor
  • Blood Grouping – ABO
  • Coronary Risk Screening – hs-CRP
  • Diabetic Screening – Fasting Glucose & HbA1c
  • Full Blood Exam
  • Gastritis Screening – H-pylori
  • Hepatitis A, B & C Screenings
  • Kidney Function Test & eGFR
  • Lipid Profile
  • Liver Function Test
  • Syphilis Screening – RPR
  • Thyroid Screening – TSH
  • Colon Cancer – CEA
  • Gastrointestinal – CA72-4
  • Liver Cancer – AFP
  • Nose Cancer – EBV VCA IgA
  • Pancreas/Stomach Cancer – CA 19-9
  • Breast Cancer – CA 15-3
  • Ovarian Cancer – CA125
  • Full Urine Exam & Urine Microscopy
  • Urine Microalbumin
  • Abdominal & Pelvic Ultrasound
  • Basic Eye Assessment
  • Body Composition Analysis
  • Ear, Nose, Throat & Hearing Assessment
  • Exercise Stress Test & ECG
  • Mammography (for ≥ 40 years old ONLY) & Breast Ultrasound
  • Pap Smear & HPV DNA Genotyping
  • Chest X-Ray
  • Dietitian Consultation
  • Physical Examination & Doctor Consultation
  • Includes: Refreshment
  • The promotion packages must be redeemed within 3 months from the date of purchase. The complimentary will be given during the health screening appointment, while stocks last.
  • Please wear clothing that allows easy access to the upper arm for blood-taking.
  • Fasting is required for a minimum of 6 hours before the check-up; however, during this fasting period, you are allowed to drink plain water. This requirement is specifically applicable to blood tests for lipid profile & fasting glucose, as well as abdominal ultrasound.
  • If you are taking hypertension medicine, please continue to do so before your visit.
  • If you have any pre-existing medical conditions, kindly bring along your test results or reports for the doctor’s review and assistance in diagnosis.
  • The health screening process will take approximately Half Day (4-6 hours), depending on the specific tests you are undergoing.
  • Medical results will be available on the same day, along with same-day consultations with the doctor and dietitian to discuss your reports. If you prefer, you can reschedule your consultations for another day.
  • “Comprehensive Health Screening Packages” purchased online can be redeemed within 6 months from the date of purchase. Buy now and use it later.
  • To schedule an appointment, book your appointment via the LifeCare App only.
    📲 Download the LifeCare App: Download for iOS | Download for Android

Essential Heart Screening

RM799.00

  • Arthritis Screening – Rheumatoid Factor
  • Blood Grouping – ABO
  • Coronary Risk Screening – hs-CRP
  • Diabetes Screening – Fasting Glucose
  • Full Blood Exam
  • Hepatitis A Antibody
  • Hepatitis B Antibody & Antigen
  • Iron Deficiency Test – Iron, TIBC, Ferritin, TSAT
  • Kidney Function Test
  • Lipid Profile
  • Liver Function Test
  • Syphilis Test – RPR
  • Thyroid Screening – Free T3 & Free T4
  • Liver Cancer – AFP
  • Full Urine Exam & Urine Microscopy
  • Urine Microalbumin
  • Carotid IMT Ultrasound
  • Electrocardiogram (ECG)
  • Exercise Stress Test
  • Dieitian Consultation
  • Physical Examination & Doctor Consultation
  • Includes: Refreshment
  • Please wear clothing that allows easy access to the upper arm for blood-taking.
  • Fasting is required for a minimum of 6 hours before the check-up; however, during this fasting period, you are allowed to drink plain water. This requirement is specifically applicable to blood tests for lipid profile & fasting glucose, as well as abdominal ultrasound.
  • If you are taking hypertension medicine, please continue to do so before your visit.
  • If you have any pre-existing medical conditions, kindly bring along your test results or reports for the doctor’s review and assistance in diagnosis.
  • The health screening process will take approximately Half Day (4-6 hours), depending on the specific tests you are undergoing.
  • Medical results will be available on the same day, along with same-day consultations with the doctor and dietitian to discuss your reports. If you prefer, you can reschedule your consultations for another day.
  • “Selective Health Screening Packages” purchased online can be redeemed within 3 months from the date of purchase. Buy now and use it later.
  • To schedule an appointment, book your appointment via the LifeCare App only.
    📲 Download the LifeCare App: Download for iOS | Download for Android
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