Is there any scientific evidence that CPR actually works?

Answer 1

Cardiopulmonary resuscitation (CPR) is an emergency first aid protocol for a victim of cardiac arrest.It is also performed as part of the choking protocol if all else has failed.

CPR essentially consists of a pattern of chest compressions and rescue breaths (i.e. artificial blood circulation and lung ventilation) and is intended to maintain a trickle of oxygenated blood to the brain and the heart and thereby extend the otherwise brief window of opportunity for successfully restarting the heart without permanent brain damage. CPR itself is not intended to restart the heart but must be performed continuously until medical responders can attempt to restart the heart by other means.

CPR is almost never effective if started more than 15 minutes after collapse because permanent brain damage has probably already occurred, especially if the person has stopped breathing, since the brain can only survive for 4-6 minutes without oxygen. A notable exception is cardiac arrest occurring in conjunction with exposure to very cold temperatures. Hypothermia seems to protect the victim by slowing down metabolic and physiologic processes, greatly decreasing the tissues' need for oxygen. There are cases where CPR, defibrillation, and advanced warming techniques have revived hypothermia victims after over 30 minutes or longer. A patient cannot be pronounced dead before he has been brought back to a normal temperature by appropriate means.

Used alone, few patients will make a complete recovery, and those that do survive often develop serious complications. Estimates vary, but many organizations stress that CPR does not "bring anyone back", it simply preserves the body for defibrillation and advanced life support.

hope this helps u..

Answer 2

As a healthcare worker, I have seen CPR work. If CPR is not administered to a cardiac arrest victim, their chance of survival drops about 10% for every minute that passes until an ambulance can arrive. Therefore, without CPR, your beyond hope after 10 minutes or so.

The best chance of survival occurs when an AED (automatic emergency defib device) is attached and used in conjunction with CPR.

CPR is constantly refined to improve it's effectiveness. General medical opinion is that it is useful.

Answer 3

With the aforementioned explanations of how CPR works, we can safely say that there is a scientific evidence that CPR actually works. CPR works because the person delivering chest compressions and administering artificial breaths, actually breathe and assists in the delivery of oxygen to the bodys tissues ie. brain, by introducing external chest compressions when the collapsed persons heart has stopped. the compressions increases intrathoracic pressure, and therefore indirectly squeezing the heart to pump the blood containing oxygen around the body, thereby maintaining cellular metabolism. In my experience, it can save lives if rendered immediately, and more effectively in conjunction with advance life support measures such as defibrillation and medications.

Answer 4

Yes, this is tested over and over. Just recently, the Red Cross and American heart Association changed some techniques to reflect new research.

We know that prompt CPR helps your chances of survival* by about 70%.

*- 'survival' usually means that you leave the hospital after the attack. Sadly, most adults who suffer a heart attack will not survive hospitalization- the odds run something like only 7% of hospitalized victims survive (or it might be 1 in 7- I cannot recall th stats right off-hand!) This is because most have a faulty heart. The numbers are much better for younger victims or people with healthy hearts.

Answer 5

yeah just as O said above . u need no more scientific evidence even though there is that CPR works after so many people have been saved by having it performed on them

Answer 6

Yes Cardio Pulmonary Resuscitation does work, by keeping oxygen flowing to the brain when the lungs do not work. The faster its administered the better the chance of no brain damage. There are fact sheets and also I'm sure some people in here have had it done to save their lives.

Answer 7

Definitely if administered by professional with available drugs. I personally have resuscitated several dozen cardiac arrest in ER's. Sometimes a blow to the breast bone is enough if caught immediately.

Answer 8

A lot . there is clinical evidence and experimental evidence . in fact it is type 1a

use www.pubmed.com or the AHA web site.