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Cardiovascular disease involves abnormalities of the heart and blood vessels. Coronary heart disease is the most common condition and is the leading cause of death in the United States for both men and women. The lifetime risk for developing significant cardiovascular disease is greater than the likelihood of developing cancer. Your heart is a muscular pump that requires heart arteries to supply oxygen-rich blood to keep it going. Coronary heart disease occurs when these blood vessels become narrowed due to a buildup of plaque. The plaque is made up of cholesterol and other substances. This process is called atherosclerosis. Atherosclerosis occurs over a lifetime, and is influenced by risk factors. Some risk factors can't be changed, however, others can be altered through healthy lifestyle choices and medications if needed. Symptoms of coronary heart disease occur when the heart muscle does not get enough oxygen. Some describe this as chest pressure or ches...

People with cardiovascular disease at greater risk for COVID-19

Many studies show people with cardiovascular disease are at a greater risk of contracting koban 19 and signs of heart attacks and strokes have been found to be common in patients with infections like the coronavirus. First, how is the coronavirus impacting the heart? Well, as with many a viral infection, when people get very seriously ill, there, that's on the heart, both from increased demand from the body and in the effects of the virus and inflammation with many people who already have underlying heart conditions. These things are made worse and by the coronavirus and, as you mentioned, as we know with this coronavirus, those with these underlying health conditions, such as heart disease, are at a greater risk. What should they be doing right now during this time to make sure they are protecting themselves? Well, there's been a lot of talks, as you know, about social distancing and limiting your exposure to other people. This is particularly important for people with ...

What is The Cardiac Cycle ?

The cardiac cycle refers to the sequence of events that occur and repeat with each heartbeat. It can be divided into two main stages: Systole and diastole, each of which is divided into several small steps When systole and diastole are not specified otherwise refers to ventricular contraction and relaxation Respectively, Reminder Blood flows from low to low pressure Compression increases the pressure in a Chamber, while relaxation reduces the pressure. When the AVT valves open the anterior pressures are higher than the ventricular pressures and Off when the pressure gradient is reversed. Similarly, Semiluna valves open when ventricular pressure exceeds submerged /, pulmonary pressure And stop. If the opposite is true, The cycle was started by firing shots at the SA node, which encouraged the atria to lower . Learn here Atrial Fibrillation Treatment It is represented by p-waves in the ECG Shortly after the onset of the P-wave atrial contraction begins and increases the ...

What Should You Do When Someone Faints

Fainting happens when your brain doesn’t get enough blood, and that causes you to briefly lose consciousness. What Causes Fainting: Hyperventilation Low blood sugar. Being pregnant Having anemia. Emotional stress. How to Diagnose  VASOVAGAL SYNCOPE How to Tell If Someone May Faint: *The patient says they feel nauseous. * Yawning frequently * Feelings of restless * Complaints of feeling lightheaded or dizzy * The skin looks pale, feels cool and may be clammy or sweaty * Complaining of tightness in the chest * Having palpitations

What are Bundle Branch Block, Animation

Bundle branch blocks happen when there is an obstruction in one of the bundle branches. The names “left bundle branch block” and “right bundle branch block” indicate the side that is affected. In a normal heart, the two ventricles are depolarized simultaneously by the two bundles and contract at the same time. In bundle branch blocks, the UN-affected ventricle depolarizes first. The electrical impulses THEN move through the myocardium to the other side. This results in a DELAYED and SLOWED depolarization of the affected ventricle, hence a broader QRS complex — typically longer than 120 milliseconds; and a loss in ventricular synchrony. Left and right bundle branch blocks are diagnosed and differentiated by looking at ECG recordings obtained from the CHEST leads, which register signal movements in a horizontal plane. Of these, the most useful are leads V1 and V6 as they are best located to detect impulses moving between the left and right ventricles. Activation of the ventricles st...

Atrial Fibrillation Guidelines 2020

Atrial Fibrillation Guideline updates. For those of you not aware, we have major cardiology groups and other physiology groups like the American College of Cardiology and the Heart Rhythm Society, which every few years, release joint statements about  how to manage atrial fibrillation . They usually incorporate things that have had major changes that can influence and management of patients with atrial fibrillation. And so in 2019, they released a focused update. It’s not a complete overhaul of the guidelines, but it did emphasize some new treatment options or new treatment options and new treatment guidelines for doctors and patients out there, which I wanted to emphasize to you today. So the first thing in the guideline was that changes into blood thinners that the newer category of blood thinners, sometimes called NOACs or DOACs, which includes new blood thinners, like Eliquis or Xarelto or Pradaxa or Savaysa, are now preferred over warfarin, meaning these are the prefe...

How Heart Failure Work

Heart failure is the inability of the heart to pump enough blood to meet the needs of the body’s organs. The function of the heart is to pump blood to keep blood circulating. The left side of the heart takes oxygen-rich blood and pushes it out to the body. The right side of the heart takes in oxygen-poor blood from the body and pushes it to the lungs where it gets filled with oxygen. If either side of the heart fails to work as it should, you can develop heart failure. ⠀ ⠀ Causes Any condition that weakens the heart muscle can cause heart failure. Inadequate supply of blood to the heart muscle because of atherosclerosis is one common cause. So it is a heart attack because it kills part of the heart muscle. Untreated high blood pressure can force the heart to work too hard and weaken it. Viral infections can weaken the heart muscle. So can certain diseases that lead to toxic substances being deposited in the heart. Leaky or blocked heart valves can also lead to heart failure. Too m...