What actually happens physiologically in your heart during a? Cardiac arrest?

Many options. Asystole , ventricular fibrillation, ventricular tachycardia, torsades des pointes, . The ventricles fail to provide significant arterial flow to the aorta and the pulmonary artery, the systemic arterial pressure drops below critical level leading to cerebral hypoperffusion and syncope. If prolongued brain death occurs within 5 minutes at normothermia.

Related Questions

What would doctors do if someone went into cardiac arrest during heart operation?

Happens everyday! It's standard operating procedure in many heart operations for the surgeon to stop or arrest the heart and put the patient temporarily on a heart-lung machine. In fact, if one should suffer an unexpected cardiac arrest, the heart operating room is the very best place in the world for it to happen (since the resuscitation statistics there are stellar.). Read more...
ACLS... If a patient suffers cardiac arrest, cardiac protocols are followed. Treatment includes possibly cpr, shocking the heart depending on the rhythm present and giving medications. If the arrest occurs during open heart surgery, the heart can be manually pumped and directly shocked. Acls, advanced cardiac life support, protocols are followed. Doctors are specifically trained to handle this emergency. Read more...
Do their best. They would do their best to revive the heart and bring it back, using CPR or even shocking. Read more...

How can unexplained sudden cardiac arrest with no known cause happen to people with healthy hearts? Is there anything that could avoid this?

testing. Usually this can occur in certain condition when a person is involved in athletics or some strenuous activities. Only thing a person can do these days to have a check before participating in sports especially when there is a family history. Read more...
Not normal. There are some underlying issues. Electrical system, or congenital that surface with sudden cardiac arrest commonly. Read more...

What can happen if your heart starts to beat too quickly? I need to know if you can go into cardiac arrest or something like that. Are there any procedures/surgeries that could fix it?

Yes. Most tachyarrythmias- fast heart can be treated medically, or specifically diagnosed, and treated with electrical ablation or surgical maze operations. Venticular tachycardia and fibrillation can occur, but decreased by proper diagnosis and therapy. Read more...

What long term effect does a cardiac arrest have on your heart?

Depends on cause. The long-term effect of cardiac arrest on your heart depends on the reason for the initial arrest and on the quality of the cardiopulmonary resuscitation (cpr). For instance, CPR may not contribute to any long-term heart damage if it is initiated quickly and performed effectively particularly if the etiology of the cardiac arrest is from a non-cardiac cause. Read more...
Depends. On degree of damage or not. If with heart attack and dead muscle it can be severe. If a chemical issue, and no damage the heart may be fine. Read more...

Can the heart stop beating when one is having a cardiac arrest?

Cardiac arrest. A heart attack is when a blood vessel to the heart blocks off and a part of the heart is damaged. A cardiac arrest can be the result of a heart attack. Cardiac arrest is when the heart suddenly stops pumping for one reason or another. A heart attack can cause cardiac arrest. A cardiac arrest isn't necessarily caused by a heart attack. It canbe an ineffective heart rhythm. Read more...
Non productive. Can be ventricular fibrillation, tachycardia or standstill. Nevertheless, no pulse and no effective blood pressure, fainting, and death if not corrected. Read more...

What causes athletes to have sudden heart attacks/cardiac arrest?

Underlying Condition. Most commonly, if this were to happen, an athlete would have an underlying heart condition. What you may be referring to is that long-term athletes can have enlargement of the heart musculature due to increased needs of the body. This could potentially lead to abnormal heart rhythms. Read more...
Strctural heart dis. Sudden cardiac arrest is usually due to conduction disease or hypertrophic cardiomyopathy. Pete maravich died of coronary artery disease during a pick up game. It turns out he only had 1 coronary artery. It is the main reason athletes at all levels have preliminary cardiac clearence. Read more...

If you are in cardiac arrest, is your heart motionless or quivering?

Either. Cardiac arrest just means the heart is not functioning effectively as a pump. Sometimes there is chaotic electrical activity causing it to "quiver" this is ventricular fibrillation. There are other situations in which the heart is motionless, perhaps without any electrical activity at all ( asystole) or with activity bit no contractions ( pulseless electrical activity). Read more...
Possibly either. Strictly speaking cardiac arrest means no electrical activity in the heart or what is called asystole. However, effective pumping of the heart also ceases in ventricular fibrillation where the heart would be quivering, but unable to pump blood. Read more...
Could be either.. During cardiac arrest, the heart is not beating effectively to deliver blood to the tissues. It could be quivering if the heart is in ventricular fibrillation rhythmn or it could be completely still if the rhythmn is asystole. Either way, the person would have no pulse. A heart monitor is needed to tell the difference. Read more...

How do I decrease my chances of getting a cardiac arrest of the heart?

Diet and exercise. Maintaining a healthy lifestyle consisting of a nutritionally balanced diet, regular exercise, a healthy weight, not smoking, reducing and managing stress, and regular check-ups with your primary care provider will provide the best opportunity to avoid a heart attack and cardiac arrest. Read more...