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2. MA J OR CHA N GE S
A F F E CT I N G A LL
RE S CUE RS
Pr e s e nt e d b y:
Dr. Gamal AbdulRahman
BLS Instructor
3. The 5 major changes in the 2005
guideline are these:
Emphasis on, and recommendations to improve, delivery of
effective chest compressions.
A single compression-to-ventilation ratio for all
single rescuers for all victims (except newborn)
Recommendation that each rescue breath be given over
1 second and should produce visible chest rise.
A new recommendation that single shock, followed by
immediate CPR, be used to attempt defibrillation for VF
cardiac arrest. Rhythm checks should be performed every 2
minutes.
Recommendation for use of AEDs in children 1 to 8 years
old (and older), use a child dose-reduction system if available.
4. Emphasis on Effective Chest Compressions
Effective chest compressions produce blood flow during CPR
(Class I). The guidelines note the following about chest
compressions during CPR:
To give effective chest compressions, all rescuers should
“push hard and push fast.” Compress the chest at a rate of
about 100 compressions per minute for all victims (except
newborns).
Allow the chest to recoil (return to normal position)
completely after each compression and use approximately
equal compression and relaxation times.
Try to limit interruptions in chest compressions. Every
time you stop chest compressions, blood flow stops.
5.
6. Why?
When cardiac arrest is present, there is no blood flow.
Chest compressions create a small amount of blood
flow to the vital organs, such as the brain and heart.
The better the chest compressions performed (ie, with
adequate rate and depth and allowing complete chest
recoil), the more blood flow they produce. Chest
compressions that are too shallow or too slow do not
deliver as much blood flow as possible to vital organs.
When chest compressions are interrupted, blood flow
stops. Every time chest compressions begin again, the
first few compressions are not as effective as the later
compressions. The more interruptions in chest
compressions, the worse the victim’s chance of
survival from cardiac arrest.
7. Rescuers are told to let the chest comeback to
normal position after each compression because
during chest wall recoil blood refills the heart.
The rescuer does not allow the chest to recoil or
re-expand after each compression, blood flow
during the next compression will be reduced
because the heart has not filled with adequate
blood before the compression.
8. One Universal Compression-to-Ventilation
Ratio for All Lone Rescuers
The AHA recommends a compression-to-
ventilation ratio or 30:2 for all one (single)
rescuers to use for all victims from infants
(excluding newborns) through adult. This
recommendation applies to all lay rescuers and
to all healthcare providers who perform 1-
rescuer CPR.
9. Why?
The science experts wanted to simplify CPR information so that
more rescuers would learn, remember, and perform better
CPR. They also wanted to ensure that all rescuers would
deliver longer series of uninterrupted chest compressions.
This change should increase blood flow to the heart, brain, and
other vital organs.
During the first minutes of VF SCA, ventilation (ie, rescue
breaths) is probably not as important as compressions.
Ventilation, however, is important or victims of hypoxic arrest
and after the first minutes of any arrest. Most infants and
children and most victims of drowning, drug overdose, and
trauma who develop cardiac arrest are hypoxic. These victims
have the best chance of survival if they receive both chest
compressions and ventilations.
10. Recommendations for 1-Second
Breaths During All CPR
Each rescue breath should be given over 1 second
(Class IIa). This recommendation applies to all
rescuers. Each rescue breath should make the chest
rise (rescuers should be able to see the chest rise).
All rescuers should give the recommended number
of rescue breaths. All rescuers should avoid
delivering too many breaths (more than the number
recommended) or breaths that are too large or too
forceful.
11.
12. Why?
During CPR, blood flow to the lungs is much less
than normal, so the victim needs less ventilation
than normal. Rescue breaths can safely be given in
1 second. In fact, during cycles of CPR, it is
important to limit the time used to deliver rescue
breaths to reduce interruption in chest
compressions. Rescue breaths given during CPR
increase pressure in the chest. This pressure
reduces the amount of blood that refills the heart
and in turn reduces the blood flow generated by the
next group of chest compressions.
13. Attempted Defibrillation:
1 shock, Then Immediate CPR
When attempting defibrillation, all rescuers
should deliver 1 shock followed by
immediate CPR, beginning with chest
compressions. All rescuers should check
the victim’s rhythm after giving about 5
cycles (about 2 minutes) of CPR.
14.
15. Why:
The rationale for this new protocol is based on 3
findings:
The rhythm analysis by current AEDs after each shock
typically results in delays of 37 seconds or even longer
before the delivery of the first post-shock compression.
Such long interruptions in compressions can be harmful (see
information above and Figure 1).
With most defibrillators now available, the first shock
eliminates VF more than 85% of the time, In cases where
the first shock fails, resumption of CPR is likely to confer a
greater value than another shock.
16. Even when a shock eliminates VF, it takes several
minutes for a normal heart rhythm to return and
more time for the heart to create blood flow. A
brief period of chest compressions can deliver
oxygen and sources of energy to the heart,
increasing the likelihood that the heart will be able
to effectively pump blood after the shock.
17. Recommended for Children Aged
1 Year and Older
AEDs are recommended for use in children 1 year of age and
older. The evidence is insufficient to recommend for or
against the use of AEDs in infants under 1 year of age
(Class Indeterminate).
For sudden witnessed collapse in a child, use the AED as soon as it is
available. For unwitnessed cardiac arrest in the out-of-hospital setting,
use the AED after about 5 cycles (about 2 minutes) of CPR. Ideally
the AED should be proven (via published studies) to accurately and
reliably recognize pediatric shockable rhythms and be capable of
delivering a “child” energy dose. Many AEDs are now equipped to
deliver smaller doses through the use of smaller child pads or a key or
other means to reduce the energy dose. If you are giving CPR to a
child (older than 1 year) and the available AED does not have child
pads or a way to deliver a smaller dose, use a regular AED with adult
pads. DO NOT use child pads or a child dose for adult victims of
cardiac arrest.
18. Why ?
Some AEDs have been shown to be very accurate
in recognizing pediatric shockable rhythms, and
some are equipped to deliver energy doses suitable
for children. Rescuers should NOT use child pads
or a child dose for adults in cardiac arrest, however,
because the smaller dose is unlikely to defibrillate
the adult.
19. LAY RESCUER CPR
The major changes in the 2005 guidelines
recommendations for lay rescuer CPR are the
following:
If alone with an unresponsive infant or child give
about 5 cycles of compressions and ventilations
(about 2 minutes) before leaving the child to phone
911.
Do not try to open the airway using a jaw thrust for
injure victims-use the head tilt-chin lift for all
victims.
20. Take 5 to 10 seconds (no more than 10 seconds) to check
for normal breathing in an unresponsive adult or for
presence or absence of breathing in the unresponsive infant
or child.
Take a normal (not a deep) breath before giving a rescue
breath to a victim.
Give each breath over 1 second. Each breath should make
the chest rise.
If the victim’s chest does not rise when the first rescue
breath is delivered, perform the head tilt-chin lift again
before giving the second breath.
21. Do not check for signs of circulation. After delivery of 2
rescue breaths, immediately begin chest compressions (and
cycles of compressions and rescue breaths.).
No teaching of rescue breathing without chest compressions
(exception: rescue breathing is taught in the Heartsaver
Pediatric First Aid Course).
Use the same 30:2 compression-to-ventilation ratio for all
victims.
For children, use 1 or 2 hands to perform chest compressions
and compress at the nipple line; for infants, compress with 2
fingers on the breastbone just below the nipple line.
When you use an AED, you will give 1 shock followed by
immediate CPR, beginning with chest compressions, Rhythm
checks will be performed every 2 minutes.
22. Lone Rescuers of Infants and
Children
Lay Rescuers Give 5 Cycles (About 2 Minutes) of
CPR for Infant or Child Before Call
For unresponsive infants and children, the lone
rescuer should perform 5 cycles (about 2 minutes)
of CPR before phoning 911 and, for the child,
retrieving the AED.
23. Why
In infants and children, hypoxic cardiac arrest is the
most common type of arrest. The 5 cycle of (30:2)
compressions and ventilations or about 2 minutes of
CPR will deliver some oxygen to the victim’s heart,
brain, and other vital organs. Some infants and
children may respond to that initial CPR. After the 5
cycles (about 2 minutes) the lone lay rescuer should
leave the child to telephone the emergency response
number (911).
24. Airway and Breathing
Lay Rescuers Do Not Perform jaw Thrust
The lay rescuer should use the head tilt-chin lift to open the
airway in all unresponsive victims even if the victim is
injured.
Why: It is very difficult to open the airway with a jaw thrust.
In addition, all methods of opening the airway can produce
movement of an injured spine, so the jaw thrust may not be
any safer than the head tilt-chin lift. They lay rescuer must
be able to open the airway for the victim who does not
respond. To simplify instruction and ensure that the lay
rescuer can open the airway, only the head tilt-chin lift will
be taught to lay rescuers.
25. Check for Breathing in Adults,
Children, and Infants
If the lay rescuer finds an unresponsive adult
victim, the lay rescuer should open the airway and
take 5 to 10 seconds (but no more than 10 seconds)
to check for normal breathing. If no normal
breathing is present, the rescuer should give 2
rescue breaths.
Lay rescuers of unresponsive infants and children
should take 5 to 10 seconds (but no more than 10
seconds) to check for presence or absence of
breathing before giving 2 rescue breaths.
26. Why
As noted in 200, adult victims of SCA may gasp for
the first minutes after collapse, and lay rescuers
may believe that the gasping victim is breathing.
Rescuers should treat gasping as no breathing.
Unresponsive victims who are gasping are probably
in cardiac arrest and need CPR. EMS dispatchers
report that when they tell bystanders to look for
absence of “normal” breathing, the word “normal
helps bystanders better identify adult victims who
need CPR.
27. For example, when EMS dispatchers ask bystanders if the
victim is breathing, the bystanders often say yes even when a
victim is only gasping. If the dispatcher asks if the same
victim is breathing “normally,” bystanders will say no and will
be able to recognize that the victim needs CPR. It is important
that lay rescuers recognize when CPR is needed.
Gasping does not occur as often in infants and children in
cardiac arrest as it does in adults. Children may demonstrate
breathing patterns such as rapid breathing or grunting that are
not normal but are adequate. For this reason.
28. Rescuers Should Take a Normal Breath
Before Giving a Rescue Breath
All rescuers should take a normal breath (not a deep
breath) before giving mouth-to-mouth-to-barrier
device rescue breaths.
Why: Taking a deep breath before giving a
rescue breath is unnecessary. The rescuer should
be able to give a breath that makes the victim’s
chest rise without taking a deep breath.
29. Give each Rescue Breath Over 1 Second
All rescuers should deliver each rescue breath (with
or without a barrier device) over 1 second.
Why? Rescue breaths can be given in 1 second.
The shorter the time needed to deliver breaths, the
faster rescuers can resume chest compressions.
Longer breaths can reduce blood return to the heart
so it reduces refilling of the heart with blood; this
will decrease the blood flow produced by the next
set of chest compressions.
30. Reopening of Airway If First Breath Does
Not Make Chest Rise
When lay rescuers give 2 rescue breaths, each
rescue breath should make the chest rise (ie, the
rescuer should be able to see the chest rise). If the
first breath does not make the chest rise, the rescuer
should perform another head tilt-chin lift before
attempting to deliver the second rescue breath.
31. Why?
The purpose of this change is to give clear
instructions for lay rescuers who note that the
victim’s chest does not rise when the first rescue
breath is given. Rescue breaths are very important
for the nonbreathing infant or child because infants
and children usually do not breathe well even
before cardiac arrest develops. The rescuer should
give 2 effective breaths (ie, breathes that make the
chest rise).
32. No Lay Rescuer Check for signs of
Circulation
After delivering the first 2 rescue breaths, the lay
rescuer should immediately begin cycles of 30
chest compressions and 2 rescue breaths. The lay
rescuer should continue compressions and rescue
breaths until an AED arrives, the victim begins to
move, or professional responders take over.
33. No Rescue Breathing Without Chest
Compressions
Immediately after delivering the first 2 rescue
breaths, the lay rescuer should begin cycles of 30
chest compressions and 2 rescue breaths. The lay
rescuer will not be taught rescue breathing without
chest compressions (except in the AHA Heartsaver
Pediatric First Aid Course).
34. 30:2 Compression-to-Ventilation Ratio
for All Victims
The AHA recommends a compression-to-
ventilation ratio of 30:2 for all lay rescuers to use
for all victims from infants (excluding newborns)
through adults.
35. Simplified Instructions for Compressions
of Child and Infant
Rescuers may use 1 or 2 hands to give chest
compressions for children. Rescuers should press
on the breastbone at about nipple line. For
compressions for infants, rescuers should press on
the breastbone just below the nipple line.
36. Why?
Rescuers and children come in all sizes. For the
child, the rescuer should use 1 or 2 hands as needed
to compress the chest about one third to one half its
depth. If 2 hands are used, the hand placement is
the same as the hand placement used for chest
compressions for adult victims (the
difference is in the depth of chest compression).
This change was made to simplify instruction.
For the infant, the rescuer should use 2 fingers to
press on the breastbone just below the nipple.
37. Giving Shocks With AEDs: Give 1 Shock
Then CPR
When using an AED, all rescuers should deliver 1
shock followed by immediate CPR. The CPR
should begin with chest compressions. All rescuers
should allow the AED to check the Victim’s rhythm
again after about 5 cycles (about 2 minutes) of
CPR.
38. Why?
When AEDs recheck the rhythm after a shock, this delays
chest compressions. Most new defibrillators eliminate
VF with 1 shock, so VF probably won’t be present
immediately after a shock is delivered. Thus it is difficult to
justify interruption of chest compressions to search for VF
when it is not likely to be present. In addition, after a shock
eliminates VF, most hearts do not pump blood effectively
for a few minues after the shock. Chest compressions are
needed during this time to provide blood flow to the heart,
brain, and other organs. If VF does remain after a shock,
chest compressions will deliver oxygen to the heart. This
will make the VF more likely to be eliminated by the next
shock.