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?

The news of Sridevi's sudden and unexpected demise was a shock for the entire nation and left a number of questions in the minds of the people. However, there are multiple reasons which are under speculation and can be attributed to her death - cardiac arrest, heart attack and death due to accidental drowning. Usually, cardiac arrest and heart attack are two things which most people use interchangeably, however, there is a big difference between the two. 

Difference between cardiac arrest and heart attack: 
A cardiac arrest is far deadlier considering that it comes without a warning or any prior indication of a problem. Here, the heart just stops beating and immediate first-aid can make a lot of difference between life and death. Electrical shock is the best way to revive a patient and should be given within a few minutes of such an arrest. 

On the other hand, a person suffers a heart attack when there is a blockage in the artery which prevents the smooth flow of oxygen-rich blood from reaching the heart. It is important to note that unlike a cardiac arrest the signs of heart attack start slow and persists for long. 

A heart attack is one of the common causes of cardiac arrest, but not always it is the case. A cardiac arrest happens most commonly when the heart is receiving more than 300 impulses per minute or due to absent electrical impulses. In the first instance an electrical shock is a lifesaving technique and in the second, the patient can be treated with certain medications and a temporary pacemaker. 

Symptoms of cardiac arrest:
The symptoms of cardiac arrest are immediate and extreme.

A fainting spell or a sudden collapse
Loss of consciousness
No pulse or breathing 
Symptoms of a heart attack 

Discomfort along with chest pain 
Shortness of breath
Nausea with vomiting
Sweating
Headache and jawpain
Prevention of a cardiac arrest:
What makes this a deadly condition is that you cannot tell your risks of having one and therefore the next best thing to do is to lower your risks. 
The best way to do that is to:

Follow a diet that is balanced and nutritious
Alcohol should be consumed in moderation 
Quit smoking
Stay physically active
How can you prevent a heart attack?

Keep yourself fit and exercise regularly
Keep your cholesterol level under check 
Limit your alcohol intake 
If you are obese, control your weight
Intake a heart-friendly diet.
Now that the distinction is clear between the two, it is recommended that everyone should get themselves screened for potential heart problems on a regular basis. In case of a query or concern consult an expert and get your answers. 

Cardiac Arrest And Heart Attack - Understanding The Difference Between The Two!

Automatic Implantable Cardioverter Defibrillator is an electronic device that is located in the chest of the patient suffering from arrhythmia. Arrhythmia is a condition which causes abnormal rhythm of heartbeat in the patients. It is a life-threatening condition. The device is located in the chest to correct the rhythm of a heartbeat.

AICD device works in two ways:

Firstly, it tries to correct the abnormal heartbeat rhythm and release high- speed heartbeat pace. This is called cardioversion. Patients with AICD generally do not feel the process.

However, if the effect of cardioversion is null then the device will give a mild electric shock to the patient's heart to correct arrhythmia and reset the rhythm.

This second method is called defibrillation. The patient can feel the defibrillation.

The modern-day AICD device is programmed to store the data about the patient s heart rhythm. Doctors use the programmed device which contains your condition and provides medically correct therapy.

Preparation for AICD Implantation

The patient is required to fast six hours before undergoing the surgery. On admission, prescribed medicine is given to the patient and the latest heart condition is measured by an ECG test. If the patient is on blood-thinning medication, then it will be stopped 24 hours before the surgery.

The procedure will be carried out by a cardiologist. The patient will remain under observation in the hospital for at least two days.

Procedure

The entire process of setting up the device in the chest of the patient takes about 2 hours. The patient is sedated, and the area below the collarbone is numbed for the operation. A small incision is made in the chest area. With the help of imaging techniques, cardiologist sets up the device in the chest. The device is then connected to the veins and the heart. After the surgery, the patient is kept under observation. Heart rate, blood pressure, and overall health condition are observed by the doctors to determine successful implantation of Automatic Implantable Cardioverter Defibrillator (AICD). Post Procedure After the successful recovery of the patient, doctors usually discharge the patient with AICD attached. The doctors give complete care instructions of the device along with health. Doctors also guide the patient through the list of activities that one can and cannot perform. AICD is a life-saving device. Hence, proper care and regular check-ups are recommended by the doctors. The regular check-up of the device is also essential since the device runs on a battery. The doctors also train the patient about the workings of the device. They will also explain about the mild shocks of the device one may receive to correct the arrhythmia. Before leaving, make sure the site of the surgery is dry and healing, and you do not have a fever for the past 24 hours.

AICD Implantation - Know Procedure Of It!

On an average a person consumes nearly 800 calories daily from added sugar. This does not just include natural sugar found in fruits or milk but the processed sweet sugar as well, that is added to cakes, tea, coffee, confectionery and even pasta sauce and salad dressing. However, it is possible that you can limit your sugar intake or even quit it to get some truly amazing benefits.

When you take this hard decision, you may experience withdrawal symptoms such as mild depression, anxiety or restlessness. But if you remain adamant and continue with your decision, your body will soon show some incredible results that you couldn't have imagined.

Here are a few of them:

1.&nbsp;Your heart will beat happily

Sugar raises insulin levels that activate the responses of sympathetic nervous system thereby elevating your bp and heart rate. When you cut down on sugar, your ldl cholesterol will decrease by 10% and triglycerides will reduce by 20-30%. And your risk of heart attack will reduce manifold.

2.&nbsp;Your weight fluctuations will be gone

With the exception of fruits, sugar is mostly present in processed or high-carb foods that contain loads of other unwanted constituents like fat etc.

So when you quit sugar, your body has to no longer worry about those unwelcome calories and your weight will stop moving right and left across the scale.

3.&nbsp;Digestion will become efficient

When you quit sugar, the digestive system becomes more efficient. Since your stomach and intestines have to no longer worry about those difficult to digest processed foods, their abilities and functioning improves. Even your colon begins to work better, may be you take more trips to the restroom, so things get even more on track.

4.&nbsp;No more acne troubles

Sugar triggers acne troubles. When you cut it down, you will no longer be troubled by those zits that dampen your looks. Your skin will actually clear up, cracks will disappear and you will get a healthier skin.

5.&nbsp;You will no longer have sweet craving

With sugar, there is a huge negative, as you enjoy sweets, you crave for more sweets. But if you quit sugar, slowly you will begin to avoid foods that contain sugar and as a result, whenever you will eat anything that has sugar, it will taste over sweet and you will not be able to have large portions. This means no more cravings for sugar!

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

5 Wonderful Things That Happen to Your Body When You Quit Sugar!

Arrhythmia is a disorder which is characterized by improper and irregular heartbeats; be it too slow or too fast. This problem occurs when the electrical impulses that are used to regulate your heartbeat don t work in the correct manner. Your heart may beat irregularly, too slow or too fast.

Symptoms
Although this disorder does not yield many symptoms, a few noticeable symptoms of arrhythmia are slow heartbeat, or a racing heartbeat, chest pain, breathing difficulties and dizziness. Arrhythmia can lead to inefficient pumping by the heart, leading to bouts of fainting. A severe symptom of this disorder is ventricular fibrillation, wherein the ventricles tend to quiver instead of transporting blood. This symptom can cut off blood supply to the vital organs, which may lead to death.

Causes

Coronary artery disease: In this disease, arteries of the heart can get blocked, leading to irregular heart beat and impaired heart functioning.
A heart attack: An ongoing heart attack usually leads to irregular heartbeats.
High blood pressure: High blood pressure problems make you more vulnerable to this condition.
Impaired functioning of the thyroid glands: An overactive or underactive thyroid gland can lead to heart arrhythmia.
Excessive smoking and alcohol consumption: These habits can cause problems with the blood vessels in the body, thus increasing risks of this particular condition as well as other cardio-vascular diseases.
Stress: Too much stress can lead to high blood pressure; that is again linked to heart arrhythmia.
Treatment
Mild symptoms of arrhythmia do not require treatment. However, complications resulting from it warrant treatment. The various treatment options for this condition are:

Pacemaker: A pacemaker is a device that is used to regulate your heart rhythms. It is placed in the body by a surgical procedure and an insulated wire is put, connecting the heart to the pacemaker. In case of an irregular heartbeat, the pacemaker sends out impulses to correct the improper heartbeat.
Implantable cardioverter-defibrillator: This device is used to prevent a dangerous symptom of heart arrhythmia, a symptom wherein the ventricle quivers. It is similar to a pacemaker as it is also placed near the collarbone. In case it detects an abnormal rhythm, it sends out shocks to reset the heart rhythm.
Maze procedure: This is a surgical procedure wherein incisions are made on the upper heart tissue to create a scar tissue. Scar tissues act as insulators to prevent stray impulses.
Alternative therapies: Alternative procedures such as yoga and meditation can help remedy the disorder.

Is Your Heart Missing a Beat Regularly - Could it be Arrhythmia?

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

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