Approach To The Injured Patient Flashcards

1
Q

What are the five phases in the management of the severely injured patient

A

Pre Hospital
•Transportation
•Emergency Room
•Definitive care
•Rehabilitation.

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2
Q

What happens in pre hospital care

A

Pre Hospital Care
•Scene size up
•Call for appropriate support
•Secure area.
•In multiple trauma: triage
•Green—minor injuries
•Red—life threatening injuries
•Black—dead

triage
•Is patient awake, opening eyes and conversing?
•Is patient reacting to verbal stimuli?
•Is patient arousable only to painful or noxious stimuli?
•Is patient unresponsive?

RESUSCITATION
•ABCs
•Airway with cervical spine protection: scoop out contents, jaw thrust and chin tilt, hqnd ventilate.
•Breathing: cover open lesions on chest.
•Circulation: wide bore cannula, tourniquet.

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3
Q

What happens during transport
What are the characteristics of a trauma center

A

TRANSPORT.
•As a unit, ie strapped to long spine board.
•Inform receiving institution
•Transport appropriate patient to appropriate institution.
•Institutions categorized into 5 levels: level 5-1 based on quality of personnel, equipment to investigate, facility to treat and rehabilate.
• methods of transportation; ambulance, helicopter, trucks, pickups etc.

TRAUMA CENTRE
•CHARACTERISTICS;
•Surgeons with special skills to treat injured pt.
•Operating rooms, anaesthesia, blood bank, x-rays, CT scan etc.
•Emergency physicians
•Supportive staff working 24hrs.

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4
Q

What happens during primary survey in the emergency room(state the Traditional resuscitation as outlined by the Advanced Trauma Life Support guidelines)

A

Traditional resuscitation as outlined by the Advanced Trauma Life Support guidelines
i. Establishment of a functional airway
ii. Breathing assessed and established immediately if necessary

iii. Control major and life threatening haemorrhage
iv. Circulation supported by establishing reliable, large bore venous assess and fluid resuscitation. Avoid overzealous administration of crystalloids
v. Assess neurological disabilities
vi. Expose entire body to note significant deformities or penetrating injuries

vi. Baseline investigations; FBC, ABGs, GXM, etc
vii. Close co-operation with other surgical specialties

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5
Q

What injuries are treated during definitive care and rehabilitation
What are head injuries
State five causes

A

DEFINITIVE TREATMENT/REHABILITATION.
•Head injuries
•Chest injuries
•Spinal injuries.
•Abdominal injuries
•Genito urinary injuries

Head injury.
•Vast array of injuries to
• scalp
• skull
• brain +underlying tissues + blood vessels
•Brain injury
•Traumatic brain injury
•Oregon Healthcare ( 2006 )

Causes
•RTA/MVA
–Most serious injuries
–25% of all HI
–60% of deaths from HI
–50% die before reaching hosp
•Assault
•Injuries @ work
•Home ,sports

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6
Q

State the associated factors of head injury
How is head injury graded (mild moderate severe)
How do you assess a patient with head injury

A

Associated Factors
•Alcohol 35%
•Drugs 7%
•Suicide 10%

Grading severity acutely
•Mild
–GCS 14-15
•Moderate
–GCS 9-13
•Severe
–GCS 3-8

Assessment
•History
•Examination with resuscitation
•Investigation
•Stabilisation
•Transfer

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7
Q

What is important in the history of someone with head injury

A

History
•Mechanism of injury
–Severity/velocity
•Pedestrian/cyclist hit by car, ejection, rollover, other occupant death, fall>1m, high velocity

–Blunt (usual) - high or low velocity

–Penetrating (rare) – gun shot wound or other

PMH
–Brain surgery, clotting disorders, epilepsy
•Family history - epilepsy
•Medications – sedatives, AEDs,antidepressants,narcotics
•Allergies
•Suspicion of non accidental injury

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8
Q

What is important in the examination of someone with head injury
State five investigations done for people with head injury

A

Examination with resuscitation

•Focused neurological assessment
–GCS
–Pupils
–Lateralising signs
–Frequent re-evaluation
–Base skull fracture – csf rhinorrhoea, otorrhoea ,Racoon’s/Panda eyes, subconjunctival haemorrhage
–Lacerations and bruising
–Vital signs – pulse, BP,resp,temp.

Investigation
• Xrays
–Skull
–C spine

•CT scan
–Brain
–Bone windows
–C1 to T1

(There are pics of CTs with a brain having subdural hematoma and all in the slides)

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9
Q

How is head injury managed
What can happen to a patient with head injury within several hours and within several days to weeks?

A

management
•Mannitol
–0.25-0.5 g/kg
•Antibiotics
•Steroids
•Anticonvulsants
•surgery

Time is of essence-1st 20min most vital
•Nutrition – high requirements 2000-3000 cal/day 1st week
•Take care of problems associated with the unconcious state

Distribution of death
Trimodal

•1st peak – seconds to mins after HI
•2nd peak- within several hrs = Golden hour
•Expanding haematomas
•Pneumothorax
•Abdominal injuries
•Pelvic fractures
•Others – hypotension ,hypovolaemia
•3rd peak –several days to weeks
•Sepsis
•Multiple organ failure

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10
Q

Why is the Age of the patient important in the severity of injury in chest injury

A

Age of the patient important in the severity of injury
•Children:- immature chest wall is elastic and flexible
•Fractures are uncommon but visceral injuries are more significant
•Elderly patients:-fragile bony thorax susceptible to low-impact forces
•Offers poor protection for underlying viscera, high mortality with even minor injuries

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11
Q

State six causes of blunt chest injuries and six causes of penetrating chest injuries

A

RTA 70-80%
•Fall from heights
•Crush injuries
•Blasts
•Industrial accidents

•Blunt injuries are usually associated with other injuries, e.g. head injury, long bone fractures, abdominal injuries

Penetrating:
Civilian practice
•Stabs
•Impalement injuries
•Arrows and spears
•Gunshots
Wars and Conflicts
•Bullets
•Shrapnel

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12
Q

In war, chest injuries account for about 10% of all injuries.
•85% - 90% of chest injuries can be managed non operatively
–only 10% - 15% require thoracotomy or sternotomy.

True or false
Explain the pathophysiology of chest trauma

A

Major derangements include:
-Respiratory insufficiency
-Circulatory insufficiency
-Sepsis due to leakage of alimentary tract contents as in oesophageal perforations

Pain from chest injuries can make breathing difficult
•Restriction of chest movement, atelectasis, diminished cough, retention of secretions, superimposed infection
•Direct lung injuries, e.g. pulmonary contusions, shunting, also impair oxygenation

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13
Q

State the deadly dozen in chest injuries (lethal 6 and hidden6)

A

AIRWAY OBSTRUCTION
•TENSION PNEUMOTHORAX
•OPEN PNEUMOTHORAX
•FLAIL CHEST
•MASSIVE HAEMOTHORAX
•CARDIAC TAMPONADE

HIDDEN SIX

PULMONARY CONTUSION
• MYOCARDIAL CONTUSION
•TRACHEOBRONCHIAL DISRUPTION
•DIAPHRAGMATIC RUPTURE
•OESOPHAGEAL INJURY
•TRAUMATIC AORTIC RUPTURE

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14
Q

What is the commonest blunt thoracic injury and what does it represent?
Fractures of which rubs in chest injury are associated with the lungs,heart,pleura and bronchus
Fracture of which rib is indicative of spleen,hepatic and renal injury?
Why are first rib fractures of particular importance?

A

Rib fractures The commonest blunt thoracic injury
•Represent an important indicator of trauma severity, the greater the number of ribs fractured the greater the morbidity and mortality
•81% of rib fractures are associated with haemo or pneumothorax

Fractures of the fourth through the ninth ribs are associated with injuries to the lung, bronchus , pleura, and heart
•Fractures below the ninth rib are indicative of spleen, hepatic, or renal injuries
•First rib fractures are of particular significance because of the great force required for it to occur and the likelihood of intrathoracic visceral injury as well as injury to the brachial plexus and the subclavian vessels

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15
Q

What are the symptoms of rib fractures
What are the objectives in treatment of rib fractures

A

Symptoms include pain, exquisite tenderness, and crepitus
•CXR usually confirms the ribs that are fractured and any associated pathology

TREATMENT OF RIB FRACTURES
Pain relief:
-intravenous opiates
-NSAIDs
-Intercostal nerve blocks
-thoracic epidural
-intrapleural instillation of local anaesthetic agents
-transdermal patches

Prevention of atelectasis and optimization of pulmonary toilet by deep breathing exercises, coughing, incentive spirometry, ambulation
•Patients should be counseled that the pain my go on for weeks

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16
Q

What are associated injuries of diaphragmatic rupture
State six clinical findings of diaphragmatic rupture

A

3 – 5% of major chest injuries
•95% occur on the left side, bilateral in <3%
•Associated injuries
• spleen, liver and ribs are common
•Presentation may be early, delayed or late

Clinical findings
Hypotension from intra abdominal injury
•Pain- Shoulder, Chest, upper abdomen
•Bowel sounds in the chest
•Progressive respiratory distress
•Intestinal obstruction

17
Q

State six chest X ray findings in a diaphragmatic rupture
State six complications(vascular,chest wall,mediastinum)

A

Elevation of the hemidiaphragm
•Blunting of costophrenic angle
•Multiple rib fractures
•Aberrant course of NG tube
•Persistent pneumothorax
•Persistent haemothorax
•Gas- filled viscera in the chest

Rx of ruptured diaphragm
Resuscitation
•Surgery
•Abdominal
•Thoracic

Vascular
-Thromboembolism
-Air embolism
-Great vessel fistula
•Chest wall
-Persistent pain
•Mediastinum
-Mediastinitis
-Pericarditis

18
Q

What aggravates an unstable injury in spinal injuries
In which cases should you always suspect a spinal injury

High incidence in the developing world
–Poor road conditions
–Poor servicing of vehicles
–High speed and unsafe driving
–Lack of seat belts or head rests in cars
True or false

A

Injudicious movement aggravates an unstable injury
•Diagnosis often delayed or missed
•When in doubt protect the spine
•Suspect in all cases of
RTA
Falls – 25% of falls >25 ft have SI
Penetrating injuries near the spine
Fractures of lower limbs = 60% SI

19
Q

What are the causes of spinal cord injuries
State the classification of cord injuries

A

CAUSES :
● MVA/ RTA,
● Community violence,
● Falls,
●Contact sports and recreational activities to
●Work related injuries
●Diving
Causes vary from country to country and from region to region in same country

Injuries
–vertebrae
–Spinal cord, nerve roots
Anatomic
–Cervical 50-55%
–Thoracic 15%
–Thoraco-lumbar 15-30%
–Lumbosacral 15%

This helps in triage, planning of treatment and predicting outcome.
–Complete - cord transection
–Incomplete

A complete spinal cord injury causes permanent damage to the area of the spinal cord that is affected. Paraplegia or tetraplegia are results of complete spinal cord injuries. An incomplete spinal cord injury refers to partial damage to the spinal cord.

Complete: Absence of sensory and motor functions in the lowest sacral segments
Incomplete: Preservation of sensory or motor function below the level of injury, including the lowest sacral segments

Frankel Grading
A – E
American Spinal Injury Association - ASIA

Frankel Grade
The Frankel Grade classification provides an assessment of spinal cord function and is used as a tool in spinal cord injury, as follows: [1, 2, 3, 4]
Grade A: Complete neurological injury - No motor or sensory function detected below level of lesion
Grade B: Preserved sensation only - No motor function detected below level of lesion, some sensory function below level of lesion preserved
Grade C: Preserved motor, nonfunctional - Some voluntary motor function preserved below level of lesion but too weak to serve any useful purpose, sensation may or may not be preserved
Grade D: Preserved motor, functional - Functionally useful voluntary motor function below level of injury is preserved
Grade E: Normal motor function - Normal motor and sensory function below level of lesion, abnormal reflexes may persist

20
Q

What is important in the history of someone with spinal injuries

A

Detailed from patient, relatives, witnesses
•Time course, progression of any neuro deficits
•Alcohol, high energy impact injuries, ejection, seat belts
•Pain, numbness
•Difficulty with limb movements

21
Q

What is important in the examination of someone with spinal injuries
State four investigations in someone w such injuries

A

Vital signs – pulse, BP, resp, capillary refill, skin colour
•LOC – following commands
•Diaphragmatic function
•Extremity function
•Grip / snapping of fingers
•Wiggling of toes
•Provides rapid info about weakness
•Systematic exam of key motor groups of the limbs
•Unconcious pat – deep noxious stimulus to assess gross motor fxn in each limb
•Priapism – complete C spine injury
•Sensory
•Reflex
•Painless urinary retention

Final phase in the diagnosis
•X-rays
•Myelogram
•Post-myelogram CT Scan
•CT Scan
•MRI

22
Q

State six complications one may have with such injuries
How does respiratory complic occur
Which nerves innervate the diaphragm

A

Respiratory: atelectasis, pneumonia and respiratory failure,pulmonary embolism,sleep apnea,
ii.Cardiovascular: Patients with spinal cord injury have an increased risk of atherosclerotic disease due to overweight, lipid disorders, metabolic syndrome and diabetes. They are predisposed to thromboembolism due to venous stasis and hypercoagulopathy, especially immediately after the injury.
iv.Thromboembolism
iii.Skin and pressure sores
iv.UTI and Renal failure
v.Joint Contractures
vi.GIT problems: constipation, distention, abdominal pain, rectal bleeding, hemorrhoids, bowel accidents, and autonomic hyperreflexia.
vii.Heterotopic calcification
viii.Spasticity
ix. Autonomic dysreflexia: Autonomic dysreflexia (AD) is a condition in which your involuntary nervous system overreacts to external or bodily stimuli. It’s also known as autonomic hyperreflexia. This reaction causes: a dangerous spike in blood pressure. slow heartbeat. nervous system of people with AD over-responds to the types of stimulation that do not bother healthy people.

Specifically, the C3, C4, and C5 spinal nerves innervate the diaphragm. After a spinal cord injury at or above the C5 level, messages from the brain may not be able to get past the damage, resulting in loss of control over the diaphragm.

This causes breathing to be weakened
While respiratory complications are most common after cervical spinal cord injuries, they can also occur (to a less severe extent) after thoracic injuries. The thoracic nerves mostly control the muscles in your trunk. Without motor control over the intercostal (the muscles in-between in the ribs) and abdominal muscles, individuals may experience decreased lung volume and weak coughing.,

23
Q

What is the priority treatment for someone w spinal injuries

A

Prioritisation of Treatment
•Establish adequate oxygenation and perfusion – ABCs
•Immobilisation : instability or compression
•Spine board
•Rigid neck collar
•Sand bags / IV solution bags
•Decompression if extrinsic pressure
•Prevention and mx of complications
•Rehabilitation / physiotherapy

24
Q

How do you prevent the complications of people with spinal injuries

A

Prevention of complications
•Early aggressive rehab
•Chest physiotherapy
•Anti-embolic stockings
•Anticoagulation
•Proper nursing care
•Early psychological support to prevent depression and suicide
•Periodic review by neuro specialist to detect and deal with late cxms

25
Q

What is the recovery rate for people with spinal injuries
What are the causes of death for people w spinal injuries

A

Recovery
•Depressingly low
•Complete quadriplegia
•85% remain complete @ 1yr
•11 – 17% regain some function
•3% ambulate
•Complete paraplegia
•92-95% remain complete @ 1yr
•1 – 3% ambulate
•Thoraco-lumbar injuries
•27% regain some function

Causes of Death
•Pulmonary
•Cardiovascular
•Renal failure
•60 – 65 %
•Psychological devastation
•Suicide
•4 – 20%