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Transcript of Chapter 23 Chest and Abdominal Trauma. © 2005 by Thomson Delmar Learning,a part of The Thomson...
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Chapter 23Chest and Abdominal Trauma
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Overview
Anatomy Review Chest Trauma Chest Injuries Abdominal Trauma Abdominal Injuries
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Anatomy Review
Thoracic cavity and abdominal cavity: two spaces in the trunk of the body
They contain some of the body’s most important organs
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
Chest injuries result in a significant number of deaths each year
The chest contains organs vital to life Damage to vital organs threatens life Most common consequence is hypoxia
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
Mechanism of injury (MOI): Blunt chest trauma– Most common cause of serious chest injuries– Motor vehicle collisions (MVCs), falls, direct
blows, and crushing injuries– Many injuries are not immediately apparent
in physical exam
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
Mechanism of injury (MOI): Blunt chest trauma– Injuries linked to size of object applying force
and most important, to speed– Speed kills
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
MOI: Blunt chest trauma– Evaluating MOI at a motor vehicle collision
• Significant damage to vehicle’s exterior?• Damage to interior of vehicle?• Broken or bent steering wheel means significant
force was applied to the driver’s chest• The higher the forces, the higher the suspicion for
serious injury to patient
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
MOI: Penetrating trauma– Increasingly common in today’s society– Immediate result can be severe bleeding
or impaired breathing
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
MOI: Penetrating trauma– Any chest wound can involve underlying
organ injury • No matter how superficial it looks
– Injuries to the heart, lungs, and great vessels can quickly lead to shock and cardiac arrest
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Chest Trauma
Signs and symptoms– Most common symptoms: pain and difficulty
breathing– Signs are obvious injury to the chest wall
• Use DCAP-BTLS, looking at both the front and back of the chest
– Note any subcutaneous emphysema, or air present under the skin
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
Assessment– Follow all steps in the assessment of
the trauma patient
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Chest Trauma
Management– Ensure patient has adequate
oxygenation and perfusion– Provide high-flow oxygen, ventilating
when necessary– Halt any obvious bleeding
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Trauma
Management– Support circulation when needed– Rapidly transport patient to definitive care
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Chest Trauma
Transport– Transport patient to a hospital with the
capability to diagnose and treat serious traumatic injuries
– Arrange for ALS intercept as guided by local protocols
– Notify receiving hospital so staff can prepare
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Chest Injuries
Open chest wounds– A sharp object penetrates the skin on the
chest wall– Laceration of vessels such as the vena cava
or aorta will likely cause bleeding between the lung and the chest wall • The accumulation of blood in the pleural space is
called a hemothorax
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Chest Injuries
Open chest wounds– If penetrating object has pierced pleura,
outside air can enter the thoracic cavity– As the volume of air in the thoracic cavity
expands, the lung starts to collapse – Air within the pleural space is called a
pneumothorax
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Chest Injuries
When air enters between the lung and the chest wall, pneumothorax is created
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© 2005 by Thomson Delmar Learning,a part of The Thomson Corporation. All Rights Reserved
Chest Injuries
Open chest wounds– As air passes in and out of an open wound,
it can create a sucking-type sound – Sucking chest wound means possibility of
pneumothorax– Signs of pneumothorax: difficulty breathing,
cyanosis, diminished breath sounds on the affected side
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Chest Injuries
Open chest wounds: Management– Cover open chest wounds with
occlusive dressing– Gloved hand is an effective temporary
occlusive dressing– Secure dressing on three sides
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Chest Injuries
Open chest wounds: Management– High-flow oxygen– Transport with unaffected side slightly elevated– Arrange for ALS intercept
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Open Chest Wound
Watch this animation illustrating management of an open chest wound.
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Stop and Review
Name three signs of a simple pneumothorax.
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Chest Injuries
Tension pneumothorax– Buildup of pressure in pleural space resulting in
decrease in blood pressure– Potentially life-threatening condition that must be
treated immediately– Can occur in blunt or penetrating chest trauma
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Chest Injuries
Increasing pressure in the lung pushes the heart and the great vessels to the opposite side of the chest.
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Chest Injuries
Tension pneumothorax: Signs– Include all those of a pneumothorax– Jugular venous distension (JVD)– If ventilating becomes more difficult, significant
lung compression is indicated
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Chest Injuries
Tension pneumothorax: Signs– Tracheal deviation is a late sign– If patient is hypotensive, immediately lift
a corner of the occlusive dressing• Transport this patient rapidly • Consider ALS intercept
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Chest Injuries
Rib fractures– Local swelling and tenderness may be
the only sign of a broken rib– Can be very painful– Patients often present with guarding
and shallow breathing
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Chest Injuries
Rib fractures: Management– Move the patient carefully to prevent
the bone ends from puncturing a lung– Administer oxygen
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Chest Injuries
Rib fractures: Management– Allow patient to self-splint by assuming
the most comfortable position possible– Encourage patient to limit movement
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Chest Injuries
Flail segment– When three or more ribs are broken in two or
more places, a rib-cage segment may detach from the rest
– Flail segment is free floating
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Chest Injuries
Flail segment– Paradoxical movement: movement of flail segment
in opposite direction of the rest of the chest wall – Paradoxical movement can significantly impair
breathing and cause injury to the underlying lung
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Flail Chest Segment
Watch this animation of a flail chest segment.
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Chest Injuries
Flail segment: Management– Quickly stabilize flail segment by placing gloved
hand over injured area– After manual stabilization, place folded universal
dressing over segment and tape securely
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Chest Injuries
Flail segment: Management– Consider assisting patient’s
breathing if tachypnea increases– Transport on side with unaffected
lung on top
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Chest Injuries
Pulmonary contusion– Bleeding into the lung itself is a
pulmonary contusion– Bleeding and edema can impair
gas exchange, causing hypoxia– Soft crackles may be heard over
injury site– Chest pain, point tenderness, and
localized swelling over area of impact
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Chest Injuries
Pulmonary contusion: Management– Support ventilation as needed – Supply high-flow supplemental oxygen– Transport to hospital
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Chest Injuries
Cardiac contusion– Can impair heart’s ability to pump– Bleeding into heart tissue can cause heart to
beat irregularly– Irregular pulse should alert EMT to possibility
of a cardiac contusion
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Chest Injuries
Cardiac contusion: Management– High-flow oxygen– Ventilation support as needed– Support of circulation if appropriate– Prompt transport– Request ALS backup
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Chest Injuries
Pericardial tamponade– Bleeding around heart and into pericardial
sac that encloses the heart can cause pericardial tamponade
– Usually results from a penetrating chest trauma with laceration to the heart itself
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Chest Injuries
Pericardial tamponade – Blood filling the pericardial sac compresses heart,
causing blood to back up– JVD is a telltale sign of pericardial tamponade– Narrowed pulse pressures
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Chest Injuries
Pericardial tamponade: Management– High-flow oxygen– Treat patient for shock– Transport rapidly to ED– Request ALS intercept– Notify hospital so staff can properly prepare
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Chest Injuries
Aortic injury– In sudden decelerations such as high-speed head-
on MVCs, body organs are thrown forcefully against the front of the body
– Most significant tear: aorta– If tear is complete, patient will die in minutes
• Incomplete tears bleed severely
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Chest Injuries
Aortic injury: Management– High-flow oxygen– Treat patient for shock– Transport rapidly to ED– Notify hospital so staff can properly prepare
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Chest Injuries
Traumatic asphyxia– Rapid ejection of blood and air out of chest– Rapid compression of chest increases internal
pressure dramatically• Blood is immediately forced out of the chest and into the
vessels in the neck, head, and face
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Chest Injuries
Traumatic asphyxia– Neck veins immediately become distended– Cyanosis is apparent in face– Bleeding in the eyes’ sclera may occur
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Chest Injuries
Traumatic asphyxia: Management– High-flow oxygen– Treat patient for shock– Transport rapidly to ED– Notify hospital so staff can properly prepare
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Abdominal Trauma
MOI: Penetrating abdominal trauma– Stab or gunshot wound to abdomen, no
matter how superficial, can seriously injure internal organs
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MOI: Penetrating abdominal trauma– Inquire
• Kind of knife and length?• Caliber of gun? • How many shots were fired?• Trajectory?
Abdominal Trauma
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Abdominal Trauma
MOI: Blunt abdominal trauma– External signs of injury may not be readily
apparent– Injury potential is as great as that of a
penetrating trauma – Most vehicle air bags don’t protect against
abdominal injury from lateral impacts in an MVC
– Improper use of seat belts may cause abdominal injury in a collision
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Abdominal Trauma
Signs and symptoms– Look for DCAP-BTLS– Look for signs of penetrating trauma– Pain– Guarding, rigidity, distension, masses– Rebound tenderness
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Assessment– Follow all of the steps in patient assessment
Abdominal Trauma
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Management– Ensure patient has adequate
oxygenation and perfusion– Provide high-flow oxygen, ventilating
when necessary
Abdominal Trauma
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Management– Halt any obvious bleeding – Support circulation when needed– Rapidly transport patient to definitive care,
usually a trauma center
Abdominal Trauma
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Transport– Transport patient to a hospital with the capability
to diagnose and treat serious traumatic injuries– EMT should arrange for ALS intercept as guided
by local protocols– Notify hospital so staff can prepare
Abdominal Trauma
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Abdominal Injuries
Liver and spleen injury– Most commonly injured abdominal organs– Both are very vascular– Potential signs of liver or spleen injury: contusions
and abrasions over the lower rib cage with upper abdominal tenderness
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Abdominal Injuries
Liver and spleen injury: Management– High-flow oxygen– Ventilation support as needed– Support of circulation if appropriate– Prompt transport
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Abdominal Injuries
Evisceration– Large abdominal wound may allow abdominal
contents such as the small intestine to eviscerate through wound opening
– The EMT can recognize evisceration easily but should not let it distract him from addressing other potentially life-threatening issues
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Abdominal Injuries
Evisceration: Management– Do not replace abdominal contents into abdomen– Cover protruding contents with dry nonadherent
sterile dressing– Cover dressings with a sheet of aluminum foil to
retain heat and protect organs from further injury
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Abdominal Injuries
Evisceration: Management– High-flow oxygen– Ventilation support as needed– Support of circulation if appropriate– Prompt transport
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Abdominal Injuries
Pelvic fracture– Fractures of the bony pelvis can result in injury to
the underlying organs and vessels– Internal bleeding can result in hemorrhagic shock
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Abdominal Injuries
Pelvic fracture: Management– Consider use of MAST for stabilization– High-flow oxygen– Ventilation support as needed– Support of circulation if appropriate– Prompt transport
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Stop and Review
What is the management for traumatic asphyxia?
Name two significant signs of pericardial tamponade.
What is a late sign of tension pneumothorax?