Know all about human heart: May 2011

[postlink]http://abcheart.blogspot.com/2011/05/introduction-to-atrial-fibrillation.html?m=0[/postlink]

http://www.youtube.com/watch?v=BZ1vMLPrHnkendofvid
[starttext]
Three Cardiac Electrophysiologists  explain atrial fibrillation and explain the methods
of treating this issue. Beginning with explaining common rhythm issues and giving the statistics that atrial fibrillation affects 2.4 million Americans. Then the movement of the blood into and out of the heart is shown with the help of animation. Organized electrical impulse drives the rhythmic contraction is similar to a spark plug to a vehicle.

There is only one medicine when there are risk factors: Warfarin, also called as Coumadin . There is also a surgical procedure to treat atrial fibrillation. It is called Catheter Ablation.




[endtext]

Introduction to Atrial Fibrillation

[postlink]http://abcheart.blogspot.com/2011/05/basics-of-atrial-fibrillation.html?m=0[/postlink]http://www.youtube.com/watch?v=VKxQgjj2yVUendofvid
[starttext]
The heart is a muscle that contracts in rhythmic sequence for the duration of our lifetime.
Each beat is stimulated by an electical signal that is generated by the heart's conduction system.
Sometimes the conduction system can change it's performace. The video shows the path of
electrical signal. Atrial fibrillation is abnormal heartbeat caused by erratic electrical signal
originating from the atria. In people who experience this problem, the hearbeat can go upto
175 beats per minute. This condition is commonly treated with a pace maker.
[endtext]

Basics of Atrial Fibrillation

[postlink]http://abcheart.blogspot.com/2011/05/progression-of-atherosclerosis.html?m=0[/postlink]

http://www.youtube.com/watch?v=0-oZjSKLBRwendofvid
[starttext]
Atherosclerosis is the process where cholesterol gets deposited in blood vessels. There are different types of cholesterol in the body. It is important to know that the main culprit is the low density lipoprotein (LDL) which helps cholesterol deposition in the blood vessel. The high density lipoprotein (HDL) is the good cholesterol as it scavenges the lipid out of the body. The LDL can penetrate the layers of blood vessels. Since it is very low in density it can get deposited in the deeper layers of blood vessels and form a plaque. 

There are different types of blood cells in our body. One type of blood cell called monocyte becomes the macrophage in the tissues. The function of the macrophage is to fight any foreign material. The macrophage engulfs the LDL. Once the macrophage is saturated with LDL it bursts open releasing the fat content. In an attempt to heal, there is fibrous deposition over the fat content. When the fat content progressively increases the fibrous cap breaks open releasing the contents of the plaque. The red cells and platelets get stuck to the ruptured plaque and forms a blood clot. the clot progressively increases in size and occludes the artery completely. When the artery is completely occluded, the blood supply to the heart is completely cut off. 

This clearly explains that we have a long latent period to intervene and prevent heart disease.

[endtext]

Progression Of Atherosclerosis

[postlink]http://abcheart.blogspot.com/2011/05/5-easy-steps-to-prevent-heart-disease.html?m=0[/postlink]

http://www.youtube.com/watch?v=TofuvyeiRaMendofvid
[starttext]
Heart disease is the No:1 killer in The United States. Despite the many advances in medical field, what is proven to be of utmost benefit is basic health principles.
Knowing your genes helps you to stratify your risk for heart disease. Remember what grandma told: Eat right, work out and don't party hard!
[endtext]

5 Easy steps to prevent Heart disease

[postlink]http://abcheart.blogspot.com/2011/05/real-heart-attack-treatment.html?m=0[/postlink]http://www.youtube.com/watch?v=rv-uWXo4xzUendofvid
[starttext]
Warning: This is not a video for weakhearted people as it shows a real heart attack and the ensuing treatment.
This is a must watch video for anybody who is inquisitive to know about heart attack.
What the video shows is how one should respond when someone is having chest pain and what happens after the paramedic arrives. There is a clear illustration of a Cardio pulmonary resuscitation (CPR) and successful use of a defibrillator. Ventricular fibrillation which is the most common cause of death from heart attack can be treated with early use of a Defibrillator.
[endtext]

A Real Heart Attack & Treatment

[postlink]http://abcheart.blogspot.com/2011/05/atherosclerosis.html?m=0[/postlink]

http://www.youtube.com/watch?v=M0NF2ODfd9Eendofvid
[starttext]
Atherosclerosis is caused by obesity, smoking, family history and aging. This interactive
video shows the point of view of a blood cell moving through an artery. LDL enters the
wall of the artery and creates inflammation and then forms plaque. This chronic process
of blockage by plaque on arteries is called Atherosclerosis.

[endtext]

Atherosclerosis

[postlink]http://abcheart.blogspot.com/2011/05/pulsus-paradoxus.html?m=0[/postlink]

http://www.youtube.com/watch?v=jTsjCZ9QxW8endofvid
[starttext]
The video explains Pulsus Paradoxus.

Pulsus Paradoxus or Paradoxical pulse, is defined as an exaggeration (more than 10
torr) of the normal variation during the inspiratory phase of  respiration, in which
the blood pressure declines as one inhales and increases as one exhales. It is a sign
that is indicative of several conditions including Cardiac Tamponade, Pericarditis
including, croup, chronic sleep apnea and obstructive lung disease.
[endtext]

Pulsus Paradoxus

[postlink]http://abcheart.blogspot.com/2011/05/tamponade-periocardiocentesis.html?m=0[/postlink]

http://www.youtube.com/watch?v=7awdcbSfnFUendofvid
[starttext]
The learning objectives using this video are:

Echocardiographic appearance of pericardial collections.
The physiology of cardiac tamponade.
The basic echocardiographic signs of tamponade.
The role of echocardiography in Periocardiocentesis.

[endtext]

Tamponade & Periocardiocentesis

[postlink]http://abcheart.blogspot.com/2011/05/cardiology-physical-examination-part-1.html?m=0[/postlink]

http://www.youtube.com/watch?v=n_awZ5ST4Iwendofvid
[starttext]
A Doctor from Connecticut shows how physical examination must be done for patients with cardiac
problems. The cardiologist uses an electronic stethoscope that amplifies and shows
accurate information.

The doctor checks the vital signs of the patient (Blood pressure & pulse)
The doctor also shows how to check the jugular distension.
He then moves on to check the patients legs and notices that he has normal hair growth and no swelling.

[endtext]

Cardiology Physical Examination Part 1

[postlink]http://abcheart.blogspot.com/2011/05/understand-how-your-heart-circulates.html?m=0[/postlink]

http://www.youtube.com/watch?v=D3ZDJgFDdk0endofvid
[starttext]
This is an animated video explaining how the human heart circulates blood.
The heart pumps 5 quarts of blood every minute and it beats 100,000 times every day.
The animation also explains how the lungs oxygenate the blood and purify it. You can
also understand the concept of systole, diastole and parts of the heart like atrium,
ventricles and so on.

[endtext]

Understand How Your Heart Circulates Blood

[postlink]http://abcheart.blogspot.com/2011/05/cardiac-bypass-surgery-part-3.html?m=0[/postlink]

http://www.youtube.com/watch?v=y6TevY8hRy4endofvid
[starttext]
This is the final part of the cardiac bypass video. The surgeon skillfully sets up
a graft to bypass the blockage to the heart.
[endtext]

Cardiac Bypass Surgery - part 3

[postlink]http://abcheart.blogspot.com/2011/05/cardiac-bypass-surgery-part-2.html?m=0[/postlink]

http://www.youtube.com/watch?v=qpdvYsg2UhIendofvid
[starttext]
The video proceeds to an actual patient undergo a bypass. Some sutures are put in the
heart, so that there is not profuse beating. The patient will be given Heparin so that
blood will not clot. For the purpose of bypass, a vein from the patient's leg is taken.
The vein graft from the leg starts out as a vein and ends up as being an artery. The heart
is made to stop pumping and the heart heart stops beating. The heart is then made very cold
to prevent is deterioration. watch the video for the complete information.
[endtext]

Cardiac Bypass Surgery - part 2

[postlink]http://abcheart.blogspot.com/2011/05/3d-animation-of-cardiac-tamponade.html?m=0[/postlink]

http://www.youtube.com/watch?v=QwgfuDegC5Yendofvid
[starttext]
Cardiac tamponade is compression of the heart that occurs when blood or fluid builds up in the space between the myocardium (heart muscle) and the pericardium (outer covering sac of the heart).

Cardiac tamponade is an emergency condition that requires hospitalization.

The fluid around the heart must be drained. Pericardiocentesis is a procedure that uses a needle to remove fluid from the pericardial sac, the tissue that surrounds the heart.

A procedure to cut and remove part of the pericardium (surgical pericardiectomy or pericardial window) may also be done.

Fluids are given to maintain normal blood pressure until pericardiocentesis can be performed. Medications that increase blood pressure may also help sustain the patient's life until the fluid is drained.

The patient may be given oxygen. This reduces the workload on the heart by decreasing tissue demands for blood flow.

The cause of the tamponade must be identified and treated. 
[endtext]

3D Animation Of Cardiac Tamponade

[postlink]http://abcheart.blogspot.com/2011/05/cardiac-bypass-surgery-part-1.html?m=0[/postlink]

http://www.youtube.com/watch?v=94w6VN2JYv8endofvid
[starttext]
The cardiac surgeon clearly explains how the heart squeezed blood out to the body.
However the heart itself needs blood to function. So, the heart pumps blood to itself.
Coronary artery disease is the gradual blockage of these vessels. This blockage is
caused by the build up of cholesterol.The bypass surgery is a simple process of grafting
and changing the blood supply line and bypassing the line of blockage.Also, gives you
a quick overviiew of the operation theater.
[endtext]

Cardiac Bypass Surgery - part 1

[postlink]http://abcheart.blogspot.com/2011/05/beating-heart-surgery.html?m=0[/postlink]

http://www.youtube.com/watch?v=Zxqj1BcBpIgendofvid
[starttext]
Also called off-pump coronary artery surgery is a recent technique developed to deal with a coronary artery problem A cardiac stabilizer is needed for this surgery.
[endtext]