What is the cause of chest tightness, shortness of breath and rapid heartbeat?

I don’t know if you have ever had this experience before, where you suddenly feel a tightness in your chest and your heart rate increases without you knowing what’s going on. It is not a good thing to experience chest tightness and shortness of breath from time to time. What is going on?

Chest tightness and shortness of breath is a subjective feeling of difficulty breathing or insufficient breath. Those with mild symptoms will feel nothing serious, but those with severe symptoms will feel uncomfortable, as if a stone is pressing on their chest, and may even have difficulty breathing and cause chest tightness and shortness of breath.

There are two causes of chest tightness and shortness of breath. One is functional chest tightness and shortness of breath, and the other is caused by cardiac neurosis.

Functional chest tightness

It means that if you stay in a room with closed doors and windows and poor air circulation for a long time, or encounter some unpleasant things, or even have a quarrel or dispute with others, or are in a climate with low air pressure, you will often feel chest tightness and fatigue.

Cardiac neurosis

It is a kind of systemic neurosis with various symptoms. The most common subjective symptoms are palpitations, dyspnea, precordial pain and general fatigue. There are also manifestations such as irritability, insomnia, sweating, trembling, dizziness and nightmares.

There are many reasons for a rapid heartbeat. When an adult's heart rate exceeds 100 beats per minute, it is called tachycardia. There are two types of tachycardia: physiological and pathological.

A faster heartbeat when running, drinking, doing heavy physical labor, or being emotionally excited is physiological tachycardia;

If tachycardia is caused by diseases such as high fever, anemia, hyperthyroidism, bleeding, pain, hypoxia, heart failure and cardiomyopathy, it is called pathological tachycardia.

Some common symptoms of tachycardia are:

When the heartbeat is too fast to maintain effective blood circulation, symptoms of tachycardia such as palpitations, rapid heartbeat, chest pain, dizziness, vertigo, coma or semi-coma may occur. In tachycardia, the heart rhythm may beat regularly or irregularly. There are two types of ventricular tachycardia and atrial tachycardia:

First: If the rapid heartbeat originates in the ventricles, it is called ventricular tachycardia and can prevent the heart from pumping enough blood to the brain and other vital organs.

First, the electrocardiogram of ventricular tachycardia shows that the ventricular rate is often between 150-250 times/min, the QRS wave is wide and deformed, and the duration is widened. Second, the direction of the T wave is opposite to the QRS wave, and there is no fixed relationship between the P wave and the QRS wave. Third, the QT interval is mostly normal, but may be accompanied by QT interval prolongation, which is more common in polymorphic ventricular tachycardia. Fourth, the atrial rate is slower than the ventricular rate, and ventricular fusion waves or ventricular capture may sometimes be seen.