What Happens When the Electrical Activity of Your Heart Changes?

The heart's electrical conduction system plays a very important role in cardiovascular functioning. Also known as the atrioventricular (AV) conduction system, it regulates and controls the timing of the heartbeat.

How does the heart's electrical conduction system work?

There is a collection of electrical cells in the upper right atrium of the heart known as the sinoatrial (SA) node which acts as a natural pacemaker and generates electrical signals. These signals travel through specialized electrical pathways and stimulate the muscular walls of the heart to contract in a rhythmic manner. This gives rise to the heartbeat that pulses at a specific frequency every minute.

What is the effect of fluctuations in electrical activity on the heart?

The standard heart rate in human being ranges from 60 to 100 beats per minute. It slows down when a person sleeps and speeds up when one experiences physical or emotional heightening. These fluctuations are triggered by the brain or other systems of the body and signal the SA node to generate charges more rapidly or slowly. This leads to spikes and drops in the heart rate, depending on the nature of the situation.

What happens when there is dysfunction in the heart's electrical activity?

When the heart's electrical conduction system does not function properly, it leads to the occurrence of a condition known as arrhythmia or abnormal heart rhythm. This happens when electrical impulses are generated in an irregular manner and causes tachycardia (rapid heartbeats) or bradycardia (slow heartbeats) which takes place in jarring infrequent tempos.

What causes fluctuations in the heart's electrical activity?

There are various kinds of triggers that cause the heart rate to fluctuate. The exact nature of fluctuation also depends on the type of trigger. A few everyday examples of these causes are as follows:
- Exercise and strenuous physical activity increases electrical activity as the heart is required to beat faster so as to increase the supply of blood and oxygen to the muscles.
- Sleep and rest reduce heart rate as the body is not needed to exert itself.
- Release of adrenaline into the bloodstream causes the heart rate to spike up.



What Happens When the Electrical Activity of Your Heart Changes?

Cardiac or Heart Arrhythmia is a condition which results in disruption of heart s normal rhythm. Due to this, the heart may beat too quickly, too slowly or have an irregular rhythm. Though most of the arrhythmias are not harmful but at times they can have serious consequences, which might turn to be fatal. Differences in heart beats can lead to the restriction of blood, that gets pumped around the body, hence causing damage to the brain, heart and other organs of an individual.

Now we would take into account the causes behind the occurrence of this heart condition.

Causes

Interruption to the electrical impulses in any form that lets the heart to contract can result in arrhythmia. A person with a healthy heart should have a heart rate of anywhere between 60-100 beats per minute while the body is at rest.

There are a number of factors which can cause the heart to work inefficiently, which include:

Alcohol Consumption: If you are used to drinking alcohol varying from light to moderate, the chance of irregular heartbeat increases. A recent study has shown that with every drink consumed per day, the risk of atrial fibrillation increased by 8 percent. Men and women both are at equal risk for irregular heartbeat. Irregular heartbeat is caused because drinking leads to damage of the cells, which in turn leads to causing damage in small areas of fibrous tissue within the heart.

Anxiety: Arrhythmia from anxiety is when the heart feels like something happened due to which it tries to overcompensate and beat quickly. This leads to heart skipping a beat, getting squeezed or undergoing heartbeats at a rapid pace.

Excessive Cosumption of Coffee: Caffeine is a stimulant and tends to speed up heart rate, so consuming too much coffee can lead to the problem of arrhythmia.

Deficiency of Magnesium and Potassium: Magnesium and Potassium deficiencies in one s body can cause Arrhythmia. The deficiencies can be caused due to less intake of citrus fruits and vegetables like potatoes, kiwi, papaya etc.

Symptoms

Arrhythmia can produce a broad range of symptoms which affect the proper functioning of heart. Some of the most serious symptoms are:

Fatigue: If you feel that you are getting fatigued quite easily, then it s a clear symptom of arrhythmia.

Dizziness: A sense of dizziness creeps in when you are having the problem of irregular heartbeat.

Lightheadedness: Feeling light on the head is another symptom of Cardiac Arrhythmia, as there is fluctuation in the amount of blood that reaches the brain through the heart.

Treatment Options

Problem of irregular heartbeats, especially if it s on the slower side, can be solved through the placement of certain devices like pacemaker, which can speed up one s heart rate.
Faster heartbeats can be treated through blood-thinning medications, which would help keep threatening blood clots from getting formed.
Doctors can even go for Catheter ablation, wherein they would thread one or more catheters through the blood vessels of one s heart. Electrodes at the catheter tips can make use of extreme heat, cold or radiofrequency energy to damage a small sport of heart tissue and create an electrical block along the path, that s causing one s arrhythmia.

Cardiac Arrhythmia - Factors That Can Lead To It!

Symptoms of heart attack

A heart attack (myocardial infarction) should not be confused with stroke or heart failure. It is the condition which causes major damage to heart muscles because of sudden blockage by a blood clot. The most common symptom of heart attack happens to be chest pain. Heart failure and ventricular fibrillation are probably the most common complications in this condition. 

Clear symptoms of heart attack are:

1. Feeling vaguely ill - very vague feeling of illness is one symptom. You cannot really put your finger on what is wrong with you, but you do feel unwell.

2. Pain in left arm - pain in the arm, mainly the left arm is also one of the symptoms of an impending heart attack.

3. Sweating and heartburn - a lot of people have reported experiencing sweating, indigestion and heartburn before a heart attack. If you are sweating profusely and without any particular reasons, or having an unbearable heartburn, consult a medical specialist immediately.

4. Chest pain - feeling of fullness or tightness in the chest followed by pain is also a symptom of a heart attack. A lot of people have reported to ignore it; kindly don't.

5. Breathlessness - sudden shortness of breath and inability to do a lot of work at one point of time is not a good thing. This could be an indication of a heart attack.

6. Silent attack - the scariest of all is silent heart attack. At times, it comes with no symptoms at all. A person could be visibly physically fit, and suddenly have an attack. This usually happens with those who are suffering from diabetes mellitus.

If you would like to consult with me privately, please click on'consult.

From lybrate: if you found this tip useful, please thank the doctor by clicking on the heart icon below. Also, spread good health by sharing this tip with your loved ones over whatsapp, facebook and other media.

All You Need To Know About Heart Attack Symptoms

If you are concerned about your heart s health, it is important for you to make some dietary modifications. Simple changes in your everyday diet may offer benefits, which help in preventing future heart problems. If you suffer from high blood pressure or high cholesterol or have atrial fibrillation.

Here are some tips regarding the best diet for protecting your heart:

Believe in the food hype: Having healthy meals is certainly beneficial and makes a big difference to your heart health. Consuming meals which contain vegetables, grains, low fat dairy and lean meat will allow you to live a longer and healthier life.
Avoid crash diets: A crash diet may be effective, if you want to fit in a dress within one month. However, for improving your heart health, undertaking different fad diets is not useful. Meals in which a certain type of nutrients such as carbohydrates or fats are ruled out are not beneficial as well. You should have a sensible approach towards your diet and focus on food products such as vegetables, whole grains and lean meat.
Do not overeat: Overeating will lead to weight gain and commonly, many people get heart attack after taking a big meal.
Eat less salt: You should consume less amount of salt in your diet and do not eat more than one teaspoon of salt a day. Avoid any food item which contains high amounts of sodium. Salt is responsible for increasing blood pressure.
Limit your intake of alcohol and caffeine: In case you suffer from atrial fibrillation, you should avoid caffeine and any other stimulant as they tend to trigger the symptoms. You must drink moderately as consuming more than one drink a day increases your risks of having heart problems.
Choose meat wisely: You should avoid red meat, which contains large amount of saturated fats as these are not good for the heart. You should choose the leanest cuts of meats and trim all fat from it. You should opt for cuts such as flank, rump roast, tenderloin and sirloin. Pork tenderloin, chicken and turkey breast are other alternatives.
Add fish to your diet: Fish is essential for improving your heart health. Try to avoid having deep fried fish and choose grilled fish or roasted fish, which are rich in Omega-3 fatty acids. Consume fishes like tuna, salmon, trout and sardines.
You should also add whole grains to your diet. They are effective in controlling blood sugar and lower the chances of diabetes. Hence, the risks of heart diseases are less if you do not have diabetes. Whole grains also help with weight loss, which is beneficial for the heart.

7 Tips for a Healthy Heart

Your diet plays a major role in the health of your heart, so eating healthy should be somewhere on the top of the list for keeping your heart healthy as well. There are numerous heart disorders that occur due to unhealthy food patterns and consumption. Lifestyle factors are the major causes of heart disease, and diet occupies an almost compelling spot when lifestyle factors are taken into consideration. Here is a list of foods that keeps your heart healthy:

Salmon: Omega-3 fatty acids are very important for your heart to function optimally. Fishes such as salmon and sardines are rich in omega-3 fatty acids which lower the risk of heart diseases such as arrhythmia (irregular heartbeat) and atherosclerosis (accumulation of plaque in the arterial walls).

Oats: Like oats and milk for breakfast!? Congratulations! You are in luck; oatmeal has soluble fibers which help in lowering bad cholesterol levels. Just make sure that there is no added sugar in your oatmeal, as it will defeat the entire purpose.

Blueberries: Blueberries are rich in antioxidants that reduce the risks of heart attack and also decrease your blood pressure. So go ahead! Toss some blueberries in your oatmeal to get your daily dose of antioxidants which are such pre-requisites for supreme health.

Dark Chocolate: This will probably bring a smile to your lips. Dark chocolates contain polyphenols, a type of flavonoid, which is very good for your heart. Dark chocolate is known to reduce the risks of strokes and heart attacks. Watch the portion size as no matter what its benefits are, dark chocolates are still rich in calories.

Citrus Fruits: Citrus fruits such as lemons and Indian gooseberry are rich in compounds that lower cholesterol levels in the body. Tip   Start your day with a lemon juice and warm water. This betters your metabolism and also keeps your heart in fine shape.

Soy: Lo Behold Vegetarians! (and non-vegetarians as well). Soy is a protein rich food that is so good for your heart. It also contains heart-healthy fats and fibers that help bring down and normalize cholesterol levels.

Tomatoes: Tomatoes are rich in an antioxidant called  lycopene , which is very effective in getting rid of bad cholesterol. It thus helps in keeping your arteries healthy and reduces the risks of heart attacks.

Nuts: Nuts such as almonds and walnuts are rich in Vitamin E which helps in lowering bad cholesterol in the body. Avoid nuts that come with added salt.

Foods That Help You Maintain A Healthy Heart

Why it is important for heart patient to relax

Stress is almost inevitable in our times! however do you know that it is not the external stress that triggers that ruins us, it always our reaction to these inputs that pull us down.

If you are stressed, your body works up more adrenaline. Adrenaline in fact is the foremost heart stressor. A very easy way out is to channel it out through exercising, yoga or meditation - whichever suits your lifestyle.

However, it you have excessive stress, never live with it. Find innovative ways of ridding yourself of any kind of worry or tension. Talk to a friend, a counsellor or your partner - destress before it gets to your heart.

If you would like to consult with me privately, please click on consult.


Why 'Chillax' is the Only Learning Heart Patients Often Need!

Don't wait any longer, manage your Mitral Valve Replacement online with a Lybrate doctor today

Consult for Mitral Valve Replacement - Online and Easy!

FilterClear All

COMMON SPECIALITIES

COMMON ISSUES