Cardiovascular Diseases Arrhythmia  Dr. Ameet Oswal  Cardiologist, Basvangudi, Bangalore
                     Cardiovascular Diseases: 
Arrhythmia 
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Introduction
Arrhythmia, a common cardiovascular disorder, disrupts the normal 
rhythm of the heart, potentially leading to irregular heartbeats and 
complications
Types of arrhythmias
Atrial Fibrillation The most common type, characterized by irregular and rapid heartbeat in 
the upper chambers (atria) of the heart.
Ventricular Tachycardia A fast heart rhythm originating in the lower chambers (ventricles) of the 
heart, potentially leading to fainting or cardiac arrest
Supraventricular 
Tachycardia Rapid heart rate originating above the ventricles, often resulting in a sudden 
onset of palpitations
Bradycardia A slow heart rhythm, usually defined as a heart rate below 60 beats per 
minute, which can lead to dizziness, fatigue, or fainting
Premature Ventricular Extra, abnormal heartbeats that occur in the ventricles and may be felt as 
Contractions palpitations.
Atrial Flutter Rapid but regular heartbeat originating from the atria, often characterized 
by a distinctive sawtooth pattern on an electrocardiogram (ECG).
Wolff-Parkinson-White A congenital condition where an extra electrical pathway in the heart leads 
Syndrome to rapid heart rates or arrhythmias
Symptoms of the disease
Chest pain or Dizziness or 
discomfort: lightheadedness:
Arrhythmias can cause a drop in 
Some people with arrhythmias blood pressure, leading to 
may experience chest pain, dizziness or lightheadedness. 
pressure, or discomfort. It can Fainting or near-fainting episodes 
range from mild to severe and  can also
may come and go
Fatigue or 
Shortness of weakness
breath The irregular heart rhythms 
 Arrhythmias can lead to associated with arrhythmias can 
difficulty breathing or a feeling of affect the heart's ability to pump 
breathlessness, especially during blood efficiently, leading to 
physical activity or exertion fatigue or weakness
Conclusion
In conclusion, arrhythmias can present with a variety of symptoms that can vary in intensity and 
duration. Common symptoms include palpitations, tachycardia, bradycardia, irregular heartbeat, 
chest pain or discomfort, shortness of breath, dizziness or lightheadedness, fatigue or weakness, 
and sweating. However, it's important to note that not all arrhythmias cause noticeable symptoms, 
and some may only be detected through medical tests. If you have concerns about arrhythmias or 
are experiencing any symptoms related to your heart rhythm, it is recommended to seek medical 
attention for proper evaluation and treatment.
Thanks!
Remember, early detection and proper treatment are crucial for 
managing arrhythmias and maintaining a healthy heart. Stay 
informed and prioritize your heart health.
Do you have any questions?
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