What does Afib feel like?

What does Afib feel like?

1. What are the symptoms of atrial fibrillation? Why do some people not feel it at all?
2. The typical Afib symptoms
3. Different types of Afib
4. How do you know if you have Afib?
5. Ambulatory ECG monitor recommendation
6. What is the treatment for Afib


Recently, Dr. Petar used Wellue AI ECG to check his father’s ECG at home and shared his case with us. Click to read the full review. The reason for his ECG test was that his father had an episode of what appeared to be a TIA and atrial fibrillation had to be ruled out as the cause.

What are the symptoms of atrial fibrillation? Why do some people not feel it at all?

Most patients with atrial fibrillation have a fast and irregular ventricular beat. They often feel panic. As fast ventricular beats will lead to a drop in blood pressure, patients will feel dizzy and can even faint. And long-term fast heartbeats can cause heart failure, so patients will have difficulty breathing.

Some patients are not sensitive to irregular heartbeat and often have no symptoms, which can be missed for a long time. Some of them are found during physical examination, such as atrial fibrillation found in the ECG of physical examination after the occurrence of stroke. Or some patients are found to have atrial fibrillation after the occurrence of thromboembolism, such as atrial fibrillation found in the ECG of the hospital examination after lower-extremity arterial thrombosis. Therefore, the symptoms vary greatly from patient to patient.

Atrial fibrillation (AFib) is one of the most common clinical arrhythmias. The atria lose their normal effective contraction and are in a state of rapid and disordered fibrillation, with a frequency that can be as fast as 300-600 beats per minute, and a rapid and irregular ventricular beat that can reach 100-200 beats per minute.

In a normal person, the contraction of the atria is a uniform and consistent contraction, similar to the perfect drumming performance, where each drummer is methodically beating the drum in rhythm to produce a strong and powerful sound. However, if the performers are not in the same rhythm, the scene will only be noisy.

Atrial fibrillation can be described as that the heart beating irregularly, similar to the terrible drumming performance. Everyone no longer obeys the command; the heart does not follow the normal rhythm to contract, becoming fast and irregular. The drums are at best a failure, but if the heart is beating irregularly, the situation is bad.

The typical Afib symptoms

Common Signs:



Chest tightness

Shortness of breath

Dizziness, or even blackness and fainting in severe cases


Severe Signs:

A drop in blood pressure


Some patients can have no obvious conscious symptoms when atrial fibrillation attacks.

Different types of Afib

The type of AFib varies from the episodes of AFib and its response to treatment.

1. Classification according to the duration of AF episodes

Paroxysmal AFib: Episodes of atrial fibrillation lasting less than 7 days, mostly within 48 hours. It can be converted to sinus rhythm on its own.

Persistent AFib: Episodes of atrial fibrillation lasting more than 7 days. It requires medications or electric shocks to return to sinus rhythm.

Permanent AFib: An episode that cannot be terminated on its own or it is terminated and then recurs.

2. Classification according to the etiology of atrial fibrillation

Valvular AFib: Atrial fibrillation caused by rheumatic heart valve disease, heart valve replacement, or valvuloplasty.

Nonvalvular AFib: Atrial fibrillation not caused by rheumatic heart valve disease, mechanical or biological valve replacement, or valvuloplasty. Atrial fibrillation is considered idiopathic or isolated when the age of onset is less than 60 years and there is no clinical or echocardiographic evidence of cardiopulmonary disease.

How do you know if you have Afib?

The symptoms of atrial fibrillation are extremely atypical, so you can’t wait until a blood clot forms before you come to the doctor. Then how do you confirm the diagnosis? It is very simple. When you often feel panic and chest discomfort, you need to have an ECG (electrocardiogram). It’s convenient and inexpensive. Don’t underestimate the sky-like electrocardiogram. After the doctor’s analysis, you can find a lot of problems from the ECG.

However, some atrial fibrillation is paroxysmal, which means that it is not constant and the results of a single ECG may be normal. At this point, your doctor will decide whether an ambulatory ECG is necessary for further testing based on your specific situation.

Ambulatory ECG monitor recommendation

Wellue 24-hour ECG Recorder with AI Analysis can detect AFib.

Routine portable single-lead EKG monitor is hard to detect heart problems for a few moments checking. A Holter monitor can continuously track your heart activity, but it is so bulky to wear as it has many wires.

On the contrary, Wellue® ECG Recorder is not only portable but can also continuously monitor ECG/EKG for 24 hours. In addition, Wellue’s FDA-Proved AI ECG platform, which can intelligently diagnose various kinds of abnormal ECG/EKG events, is provided to generate ECG analysis.

Up to 24 hours Holter

Provide professional medical ECG report

Get free AI analysis and diagnosis for clinical use

Simple operation with one-touch

Two wearing modes with chest strap or electrodes

Support data saved as PDF AI ECG report and emailed to your doctor

What is the treatment for Afib

Restore the Normal Heart Rhythm

The fibrillating atria must be allowed to beat according to a normal rhythm. You cannot let the fibrillation go on in a disorderly manner but must follow the unified command of the “commander”, which is called the sinus node in medical terms. A normal and regular heart rhythm is called sinus rhythm. Medications such as amiodarone can be taken to restore sinus rhythm.

Slowing the Heart Rate

The heart rate has to be slowed down. Medications such as propranolol can be taken to slow the heart rate.

Preventing Blood Clots

It is critical to prevent thrombosis. Because many patients with atrial fibrillation will have severe cerebral apoplexy and thromboembolism in the future. Thus all patients with atrial fibrillation should be treated with anticoagulation and may take long-term aspirin to prevent thrombosis. That’s why aunt Lala needs to take aspirin every day. In addition, depending on the severity of the patient’s condition, it is possible that other types of medications (e.g., warfarin) may be required for anticoagulants. This will need to be evaluated in detail by a cardiologist.

PAP Machine Cleaning and Disinfecting

PAP Machine Cleaning and Disinfecting

Taking care of PAP equipment is vital for sleep apnea patients to benefit the most from PAP therapy.

PAP Machine Cleaning

Proper and routine care for PAP machine cleaning and disinfecting will help:

Prevent growth of bacteria and mold

Prevent sickness and infection (eg, pneumonia or bronchitis)

Keep device and equipment working properly

Prolong the life of the equipment

First and foremost, patients should familiarize themselves with these instructions for care when they first get their machine.

How to clean PAP equipment

Note: bleach, harsh soaps, antibacterial solutions, or alcohol-based solutions should never be used to clean PAP masks, tubing, or related equipment to avoid damage.

There are many parts and accessories that come with PAP machines, and each has its own proper guidance for cleaning and care:

PAP mask

Wellue PAP mask

Mask cushions should be washed daily using warm, soap water or PAP equipment-specific wipes or cleaners. After washing, they should be rinsed with water and allowed to air dry (out of direct sunlight).

When using masks, they should be placed on clean skin, free of makeup, oils, and moisturizers.

This is because most mask cushions are made of silicone, which can be broken down faster by facial oils and moisturizers.

Once a week, the mask frame should be soaked in a white vinegar solution (1 part white vinegar to 3 parts water) and then rinsed in distilled water.

Mask headgear and chin straps should be hand-washed weekly using warm, soap water. After rinsing with water, they should be air-dried. Headgear and chinstraps should not be placed in a washing machine or dryer.

PAP hose/tubing

Wellue PAP tube

Tubing should be submerged (ie, in a sink) and washed in warm water and soap. Brushes can be used as necessary to gently clean the inside of the tubing.

Tubing should then be rinsed, hung, and allowed to air dry (out of direct sunlight).

Humidifier water chamber/reservoir

Firstly, when handling the humidifier water chamber, caution must be taken not to spill any water on or around the PAP machine to avoid damage to the interior circuits.

The chamber must always be removed and then filled away from the machine.

Distilled water is typically recommended for humidifier water chambers and should never be reused (change the water daily). The chamber should also be soaked daily in warm water and soap for 10 minutes, rinsed, and air-dried.

PAP filters

The PAP machine itself typically only needs to be wiped clean on the outside weekly or whenever necessary with a wipe or a cloth with warm water and soap.

The machine should be dried after being wiped clean and should never be submerged in water.

Replacing equipment

Generally, recommendations are as follows:

Mask cushions: replace 1-2 times per month.

Masks: replace every 3-6 months.

Machines: should be checked yearly to make sure they are working properly. Expiration dates should also be checked.

Filters: replace monthly.

Humidifier water chambers: replace every 6 months or as needed.

Headgear and chin straps: replace every 6 months.

When to clean PAP equipment

As mentioned, it is important to maintain a regular cleaning schedule, even while traveling.

Depending on the equipment, cleaning should be performed daily and weekly. See the table below for a summary of when PAP equipment should be cleaned.


Mask cushion

Humidifier water chamber


Mask frame

Mask headgear and chin straps




FAQs about Sleep Apnea & CPAP Therapy

FAQs about Sleep Apnea & CPAP Therapy

What is Obstructive Sleep Apnea?

Obstructive Sleep Apnea (OSA) is a condition in which a patient’s muscles and tissues in the throat and air passage relax while sleeping, and this impedes the flow of air into the lungs due to a blockage of the airway. This can occur many times per night in the sleep cycle and especially during the REM sleep stages. Apnea is Greek for “without breath.”

Is Sleep Apnea Dangerous?

Here’s a list of the types of life-threatening conditions Sleep Apnea helps foster in a person affected by the disorder:

High Blood Pressure
Heart Disease

It’s important to understand Sleep Apnea’s role in causing these issues. Sleep Apnea deprives a person of blood oxygen during the night, and as a result, the lack of oxygen puts extra strain on the heart. The extra strain on the heart can raise blood pressure and make it very difficult to control. High blood pressure can cause heart attack or stroke, and has its own set of complications.

If concerned about possibly danger of Sleep Apnea, it’s important to work with a care provider to help get it under control. When controlled, many of the cardiac symptoms can lessen and a person’s energy level and overall health can dramatically improve.

How Wellue Helps

Tracking  and recording below vital signs at home regularly can help healthcare providers have a better understanding of your situations.

Blood Pressure

Wellue Blood pressure Monitor with EKG

For at-home instant and regular monitoring.

Can record long-term data for health insight.

Easily share the data with healthcare providers.

Diabetes Monitoring

Self-testing the blood sugar (blood glucose) can be an important tool in managing the diabetes and preventing complications. Wellue Checkme™ Suit enables at-home blood sugar testing every day.

More useful functions:

EKG Holter monitor for 24 hours.

ECG/EKG recorder

Infrared Thermometer

Tracking Oxygen Saturation

Sleep Apnea Screening

Tracking Blood Pressure

Touch Screen Operation

Preventing&Monitoring heart diease

Smart Heart Monitor

– Inexpensive way to help monitor heart rhythm at home.

– Great for monitoring Arrhythmia, heart failure, Atrial Fibrillation(Afib)…

– Responsive touch screen

– Easy to use and accurate

– Easily share ECG via phone or PC

Wellue Solutions for At-home Sleep Apnea Assessment

When a sleep apnea event happens, the blood oxygen level(pulse oximetry reading: SpO2) drops. Overnight blood oxygen level fluctuation can be used to assess sleep apnea or monitor the ongoing treatment.

Below are Wellue continuous oxygen monitors of different designs

– Tracking and recording overnight blood oxygen level fluctuation.

– Smart alarming function for abnormal blood oxygen or heart rate.  It works by vibrating on your finger or wrist. This function can be turned off.

– Easily share the data with your healthcare provider. 

O2Ring Continuous Ring Oxygen Monitor

Ring-shape design for comfortable sleep or daytime activity. 

SleepU™ Wrist Oxygen Monitor

Wrist-style design. 

Meet different tastes.

Checkme™ O2 Max Wrist Oxygen Monitor

With 72 hours extra-long battery life

I suspect I have sleep apnea, what should I do?

Sleep apnea is a serious and potentially fatal medical condition. If you or a loved one suspect you have it, you should see your doctor or be tested as soon as possible.

If your doctor suspects sleep apnea, they may recommend a sleep monitoring test. Also called a sleep study or polysomnography (PSG), it involves spending the night at a lab, clinic, or hospital. Your breathing and other vital signs will be monitored while you sleep.

It’s also possible to monitor your sleep in your own home. Your doctor might suggest at-home sleep monitoring if your symptoms and risk factors strongly suggest sleep apnea.

How often do I need to get supplies for my CPAP?

Regularly cleaning and replacing your mask, mask cushions, filters, and other CPAP equipment is vital in maintaining compliance. Various parts and pieces are scheduled to be replaced every so often as the materials in the equipment breakdown over time.

Most DME vendors will notify you when your equipment is due to be replaced. If you’re unsure of your replacement schedule or how often your insurance allows replacements, contact your DME provider and they will gladly check with your insurance company for you, so you don’t get any surprise bills in the mail.

Here is a general guideline for replacement parts:

Nasal interface – One every 3 months

Full face mask – One every 3 months

Nasal pillows – One per month

Nasal cushion – One per month

Full face cushion – one per month

Headgear – One every 6 months

Tubing – One every 3 months

Filter, disposable – Two per month

Filter, non-disposable – One every 6 months

Chinstrap – One every 6 months

Humidifier chamber – One every 6 months

If I lose weight, will I be able to get off CPAP therapy?

While weight and neck circumference are strong contributors to sleep apnea, they are not the only cause. Many people falsely believe that weight and neck size are the only causes of sleep apnea because they are the most obvious to point out.

Weight contributes to sleep apnea because of gravity and excessive tissues. When you sleep, the muscles of the body relax; this includes the muscles of the throat and mouth that work to keep your airway open during waking hours. People that are overweight often have larger necks and more soft fatty tissues in the throat. A narrower opening due to a thicker neck coupled with excess fatty tissue in the throat makes it easier for these tissues to fall back in the airway and restrict airflow.

However, many people that are not overweight also have sleep apnea for a variety of reasons. Some of these causes are:

Age – As people age their muscles begin to lose muscle tone. This is also true of the muscles in the throat. As throat muscles lose definition, they become weaker and more likely to collapse into the airways during sleep.

Enlarged tonsils or adenoids are the leading cause of obstructive sleep apnea in children but can also affect adults who never had a tonsillectomy when they were younger.

Natural causes – Some people can be genetically predisposed to having a narrower throat or may have an enlarged tongue that falls back into their airway. If your family has a history of OSA you are more likely to have it yourself.

Frequent alcohol use– Alcohol relaxes the muscles in the body, and this includes the throat muscles as well which may relax to the point of blocking the airway during sleep.

Smoking – Smoke is an irritant to the lungs, throat, and esophagus. It can cause inflammation and fluid retention in the upper airways that can impede airflow.

However, don’t let the idea of never getting off of CPAP discourage you from healthier lifestyle choices. While you may not be able to get off of CPAP entirely, losing weight can lead to less restrictive airflow, and therefore lower pressure settings, which can make therapy more tolerable.

Also, you may lose enough to put yourself in the mild to moderate group and qualify for a dental appliance as opposed to CPAP therapy.

Still worrying about weight? You should pay more attention to this number

Still worrying about weight? You should pay more attention to this number

Many people do believe that body fat percentage is the standard for measuring whether they have lost weight successfully.

So, should the body fat percentage be as low as possible? In fact, it is not always true. Too low or too high are both a state of high risk.

How to calculate body fat

When it comes to measuring body fat percentage, some of the methods used are fairly expensive and not very accurate. These include:

  • dual-energy X-ray absorptiometry (DXA)
  • hydrostatic weighing
  • air displacement plethysmography (Bod Pod)
  • 3-D body scanners


Practical Methods

If seeking out a trainer or taking your own skinfold measurements isn’t an option, there are a few ways you can track your body fat at home.

Body circumference measurements and body fat scales that use bioelectrical impedance are both methods you can do on your own.

Wellue Smart Weight and Body Fat Scale

accurately and instantly deliver 16 essential metrics 
body fat percentagevisceral fat percentageBMI…
help maintain a healthy body weight

Ideal body fat percentage for women

There are differences between men and women when it comes to body fat percentage ranges.

Body fat percentages for women fall under a few different categories. Some charts will divide the percentages by categories, such as athletes and acceptable ranges, while others divide the ranges by age.

The American Council on Exercise (ACE) has a body fat chart that’s more like the adult BMI chart because it doesn’t factor in age and breaks it up in the following categories: 

Essential fat     10-13%

Athletes             14-20%

Fitness               21-24%

Acceptable        25-31%

Obesity                 >32%

For ideal body fat percentages based on age, Beth Israel Lahey Health Winchester Hospital gives the following guidelines for a healthy body fat percentage for women:

Age          Percentage

20-39          21-32%

40-59          23-33%

60-79          24-35%

Ideal body fat percentage for men

In general, men have a lower body fat to lean tissue ratio than women, which explains the differences in the ranges. Reproduction plays a role in the higher body fat percentages for women.

With that in mind, the ACE chart gives the following ranges for men:


Essential fat     2-5%

Athletes             6-13%

Fitness               14-17%

Acceptable       18-24%

Obesity                 >25%


For ideal body fat percentages based on age, Beth Israel Lahey Health Winchester Hospital gives the following guidelines for a healthy body fat percentage for men:


Age          Percentage

20-39          8-19%

40-59          11-21%

60-79          13-24%


Generally speaking: For boys, the body fat rate is best controlled below 18%. For girls, a body fat rate less than 25% is also appropriate.

After exceeding the above body fat, there will be some negative effects. For example, the most typical is that it affects the figure. When boys’ exceeds 35% and girls’ exceeds 40%, it is a manifestation of obesity. This is the cause of many cardiovascular and cerebrovascular diseases, diabetes, and liver disease.

But when the body fat percentage is below a certain level, it is also very dangerous. When the body fat percentage of boys is less than 10% and girls’ less than 15%, the following situations may occur:


  1. The body endurance is severely reduced. For example, in your previous training, 60 minutes can be fully guaranteed, now maybe less than 40 minutes, and you may feel sleepy at night.
  2. Strength level decrease . It will send a signal to the brain, resulting in too low testosterone secretion during training. The decrease in testosterone secretion can not only affects the strength level, but also hinders the synthesis of muscle training.
  3.  Recovering ability declines. If you can recover the physical energy in one day before, but two days or more now. Injuries that could be healed in weeks, now it takes a month. You need pay attention to the body fat percentage.
  4. Reduced immunity. This is more terrible. Studies have shown that if the body’s body fat percentage is around 5%, it is likely to cause reduced immunity, traumatic infections, and so on. In severe cases, it will affect the function of the heart.


No number is a complete picture of your individual health. How you treat your body and mind are often better indicators of your overall health and well-being.

However, we do live in a time where doctors and other experts need to use charts, data, and other measurements to create a standard definition of health. That’s why your doctor or healthcare provider will often chart your Body Fat Percentage, or BMI, during routine physicals.

With that in mind, think of BMI and body fat percentage as just one way to assess and monitor your weight and overall body composition.

Get Ready – Spring associated respiratory disease is coming!

Get Ready – Spring associated respiratory disease is coming!

It’s finally spring! The days are getting longer, flowers are starting to bloom, the weather is warming up and … oh, unfortunately asthma and allergy triggers are making their seasonal appearance.

Wellue® Portable Mesh Nebulizer

  • Superfine Aerosol Particles
  • directly provides treatments to the affected area
  • manually control the nebulization rate
  • specifically designed for elders and kids

Pollen is perhaps the most obvious springtime asthma and allergy offender.  Allergic reactions can cause symptoms in your nose, lungs, throat, sinuses, ears, lining of the stomach or on the skin. Allergies can alsotrigger symptoms of asthma, making it more difficult to breathe. And pollen isn’t the only spring allergy and asthma trigger. Air pollution and temperature changes can also make your symptoms worse.

Respiratory infections come in many forms. They can affect your throat, sinuses, lungs, or airways.

Doctors split them into two types: upper and lower respiratory infections.

  • Upper respiratory infections affect your throat and sinuses. These include colds, sinus infections, and sore throats.
  • Lower respiratory infections usually last longer and are more serious. These infections affect your airways and lungs. They include bronchitis and pneumonia.

Causes of Respiratory Infections

You may get repeated infections because of things in your environment and lifestyle like:

·Contact with other infected people (especially those who are coughing or sneezing)

·Pollen and other irritants

·Smoking and secondhand smoke

·Cold weather

·Lack of sleep


But sometimes, frequent respiratory infections arise from more serious problem. They include:

Lung disease. People with asthma, cystic fibrosis (CF), or chronic obstructive pulmonary disease (COPD) are more likely to get respiratory infections. These infections can make the symptoms of these chronic conditions worse.

Asthma is one of the most common lung diseases. It affects about 334 million people all over the world. COPD is widespread as well, affecting more than 200 million people and became the third leading cause of death in the United States. CF is less frequent and affects about 70,000 people globally.

About Nebulizer

What is a Nebulizer?

A nebulizer turns liquid medicine into a very fine mist that a person can inhale through a face mask or mouthpiece. 

Who needs a Nebulizer?

Doctors typically prescribe nebulizers to kids and adults with one of the following lung disorders:

  • asthma 
  • chronic obstructive pulmonary disease (COPD)
  • cystic fibrosis
  • bronchiectasis
  • bronchiolitis
  • pneumonia
  • cough

Tips for Managing Spring Allergies and Lung Disease

Since allergy season is predicted to peak within the next couple of weeks, the Lung Health Institute has put together five helpful tips to help individuals with COPD, and other forms of lung disease, avoid a flare-up.

Tip 1: Stay Inside

Make sure to stay indoors, leave shoes outside to avoid tracking pollen indoors and wash clothes after being outside.

Tip 2: Close Windows

We know the breeze feels nice, but don’t let allergens come inside! By keeping windows closed, pollen and other allergens can’t make their way into the home.

Tip 3: Change Filters & Vacuum

Change home air conditioning and car filters often. This will eliminate allergens that may be circulating, and create a controlled environment. Also, remember to vacuum and clean floors regularly to catch allergens.

Tip 4: Fix Leaks

Fix leaky pipes or areas that have water damage. Mold is prone to grow in moist environments and can have an extremely detrimental effect overall health including the lungs.

Tip 5: Avoid Other Triggers

Make sure to stay away from cigarette smoke, strong perfumes, cleaning agents with harsh chemicals, too dry and too humid air, pet dander and other known flare-up triggers.