A cardiologist discusses the topic of cardiac arrhythmia, a condition where the heart beats irregularly. He explains that over 20 million people in Brazil have some form of cardiac arrhythmia, and it is responsible for over 320,000 sudden deaths per year.
The cardiologist explains that cardiac arrhythmia occurs when the electrical impulses that control the heartbeat do not work properly, causing the heart to beat too quickly, too slowly, or irregularly. He uses an analogy of a house to describe the heart, with the electrical part being like the wiring, and explains that arrhythmias are like short circuits in this wiring.
He lists 10 common symptoms of cardiac arrhythmia, including:
1. Dizziness
2. Chest pain or angina
3. Fatigue or weakness
4. Fainting or near-fainting
5. Rapid heartbeat or palpitations
6. Shortness of breath
7. Sensation of vibration or palpitation in the neck
8. Excessive sweating
9. Anxiety
10. Drop in blood pressure
The cardiologist emphasizes that not all arrhythmias are serious, but some can be life-threatening. He explains that treatment depends on the type of arrhythmia and may include medication, pacemakers, electrical cardioversion, or catheter ablation.
Overall, the video aims to educate viewers about the symptoms and treatment of cardiac arrhythmia, and encourages them to seek medical attention if they experience any of the listed symptoms.
Here are the key facts extracted from the text:
1. According to SOBRAC, the Brazilian Society of Cardiac Arrhythmias, more than 20 million people in Brazil have some type of cardiac arrhythmia.
2. Cardiac arrhythmias are responsible for over 320,000 sudden deaths per year in Brazil.
3. Cardiac arrhythmia refers to any change in the heartbeat from the normal sequence of electrical impulses.
4. Arrhythmias have to do with the electrical part of the heart, which can be thought of as the wiring of the heart.
5. The heart's electrical system includes the pacemaker (sinus node), atrioventricular node, HIS bundle, and Purkinje fibers.
6. Cardiac arrhythmias occur when the electrical impulses that coordinate the heartbeat do not work properly.
7. Electrical impulses can happen quickly (tachycardia), slowly (bradycardia), or irregularly (extrasystoles or atrial fibrillation).
8. In a healthy heart, the resting heart rate varies between 50 and 100 beats per minute.
9. Arrhythmias can be classified as tachycardias (beats greater than 100 per minute), bradycardias (beats less than 50 per minute), supraventricular arrhythmias (originating above the ventricles), and ventricular arrhythmias (originating in the ventricle).
10. Symptoms of cardiac arrhythmias can include dizziness, chest pain or angina, fatigue or weakness, fainting or almost fainting, rapid heartbeat, shortness of breath, sensation of vibration or palpitation in the neck, excessive sweating, anxiety, and drop in blood pressure.
11. Treatment for cardiac arrhythmias depends on the type of arrhythmia, but may include medication, pacemakers, electrical cardioversion, catheter ablation, or implantation of an ICD (implantable cardioverter-defibrillator).
12. A normal heartbeat is regular, like a clock, and can be checked by feeling the pulse or using an oximeter.
13. The heart rate can be calculated by counting the number of beats in 6 seconds and multiplying by 10.