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Transcript of PEDIATRIC TRAUMA: ABDOMINAL INJURY - hkcpn.com · PEDIATRIC TRAUMA: ABDOMINAL INJURY ... bruises or...
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PEDIATRIC TRAUMA:
ABDOMINAL INJURY
Tomcy Leung
10 May 2016
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Content
• Why children are susceptible to abdominal injury?
• Primary survey
• Secondary survey
• Abdominal organs at risk
• Assessment on history
• Examination
• Management in general
• Specific management to different abdominal injuries
• Conclusion
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Why Children Are Susceptible To Have
Abdominal Injury?
• The relative small size of the child allows a single impact
to multiple organ injuries
• Less muscle and subcutaneous fat to protect the organs
• Ribs are more pliable
• Liver & spleen take up a large proportion of the abdominal
cavity
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Why Children Are Susceptible To Have
Abdominal Injury?
• Diaphragm is more horizontal, tending to push liver and
spleen lower than the rib cage
• Adult protection system, such as seat belts, are often ill
fitting or wear incorrectly, causing deceleration injuries to
the upper abdomen
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Primary Survey & Resuscitation
• Resuscitation done simultaneously
• Airway with C-spine immoblisation
• Breathing : Ventilation & oxygenation
• Circulation : Stop bleeding & fluid boluses
• Disability : Neurological status
• Exposure : Environment & body temperature
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Secondary Survey
Perform a thorough
• back & front,
• head-to-toe examination for other injuries
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Abdomen Organs At Risk
• Solid organ injury
Liver
Spleen
Pancreas
• Intestinal injury
Stomach
Duodenum
DJ flexure
Small & large bowel
• Genito-urinary injury
Kidney
Bladder
Urethra
• Pelvic injury
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Assessment - History
Children are at risk include those with :
• High impact / deceleration injuries
• Direct blow to the abdomen
• Evidence of injuries above and below the abdomen
• Seat-belt injuries (duodenum or pancreas)
• Bicycle handlebar injuries to upper abdomen (duodenum or pancreas)
• Straddle injuries (perineum, vagina or urethra)
• Penetrating injury to chest, abdomen or pelvis, especially of the entry and exit sites are above and below the diaphragm
• Injuries suggestive of non-accidental injury
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Examination
• Better to have the presence of the carer(s) to calm and
relax the child with adequate explanation, reassurance
and analgesia
• Check for:
Any signs of circulatory compromise
Marks, bruises or wounds to the abdomen
• PR or PV examination is rarely required unless there is
evidence of trauma to the area
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Management In General
• ABCDE
• Establish IV access for aggressive fluid resuscitation
• Consider blood transfusion if further fluid resuscitation
> 40ml/kg
• Consult surgeon
• Require laparotomy if free gas present on AXR
• All penetrating wounds should be explored in OT under
GA
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Management In General
• Pass gastric tube
• NPO in initial phase, may consider TPN in prolonged
fasting
• Blood tests include, CPR, L/RFT, amylase, lipid, x-match
• Urine analysis
• Imaging investigations, e.g. X-ray, CT scan, USG
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Spleen Injury
• Isolated injury can be managed conservatively with
resuscitation and close observation
• Fluid resuscitation
• Cross matching blood
• Close monitoring
• Bed rest till abdominal pain settles and limit physical
activity for ~ 3 months
• Consider operation if unstable hemodynamics, or require
large amount of blood transfusion during acute
resuscitation
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Liver Injury
• Conservative management if hemodynamic is stable
• Strict bed rest with close monitoring
• Look out for complications e.g. bile leakage
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Injury To Pancreas
• Conservation management
• Pain management
• Withheld oral intake till resolution of symptoms and
normalization of amylase and lipase
• Decompress GI tract by gastric drainage
• May consider TPN for nutrition
• May require operation if the pancreatic duct is transected
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Injury To Intestine
• Usually associated with : deceleration injuries, causing shear injuries at the DJ flexure, the
terminal ileum, caecum or sigmoid colon
Abdominal crush injuries that involves lap seat belt
Penetrating injury
• Diagnosis is often delayed Regular clinical evaluation including auscultation for bowel sounds,
associated with repeat x-rays may be necessary to make the diagnosis
• Symptoms may appear days after injury if injury related to mesentery and devascularisation of the associated bowel, associated perforation
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Injury To Duodenum
• Acute duodenal injury is suspected if:
History of bruising in the epigastrium, severe epigastric tenderness
or bilious vomiting
Often associated with pancreatic injuries
Associated with bicycle handlebar and seat belt injuries
• Injuries may in form of
Intramural hematoma without perforation
Rupture of duodenum
• May cause ongoing GI obstruction post trauma
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Injury To Duodenum
• Intramural hematoma
May cause ongoing obstruction post trauma
Conservation management
NPO with gastric decompression
May consider TPN for nutrition
• Acute duodenal perforation
Can be detected by retroperitoneal free gas - - - > OT
May be delay in onset if related to devascularization with the
trauma - - - > Managed conservatively with NGT, TPN and
antibiotics
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Kidney Injury
• Suspect injury from
History
Wounds or bruising in the renal area
Frank or microscopic hematuria
• Investigation
Urine analysis
Monitor urine output
Imaging including USG, CT with IV contrast
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Kidney Injury
• Management
Most sharp and blunt renal injuries can be treated conservatively
Antibiotics
May consider surgery for renal trauma with on-going blood loss
despite resuscitation
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Bladder Injury
• Suspect injury from
History of injury after deceleration injury or blow to lower abdomen
when the bladder is full
Bruising in the suprapubic region
Evidence of urine extravasation (edema of scrotum, lower
abdomen and upper thighs)
Extraperitoneal extravasation or intraperitoneal rupture
Failure to pass any urine
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Bladder Injury
• Management
Urinalysis
Monitor urine output
USG or CT scan with IV contrast for diagnosis
Laparotomy should be reserved for intraperitoneal rupture
Insertion of supra-pubic catheter if there is any evidence of damage
to bladder neck
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Urethral Injury
• Suspect injury from
Straddle injury
Pelvic fracture
Blood at meatus, or a high riding prostate in older boys
• May attempt for urethral catherization by specialist for
splintage and drainage purpose
• Insert suprapubic catheter
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External Genital Injury
• External genitalia damage has the same origins as
urethral injuries
• Child abuse should also be kept in mind
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Fracture Of Pelvis
• Elasticity of bone in children allows a greater level of
energy absorption prior to the fracture
• Fracture may be stable or unstable
• Possibility of visceral, genito-urinary neurological injury
• The pelvis is in proximity to major blood vessels and
organs, pelvic fractures may cause extensive bleeding
and other injuries that require urgent treatment
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Fracture Of Pelvis
• Examination for
• anterior / posterior stability
Testing by grasping the ASIS – Anterior Superior Iliac Spine regions
bilaterally and performing an open book maneuver
• vertical instability
By checking for any discrepancy in heights of the ASIS and the legs
lengths
• Treatment
• May be conservative in low energy pelvic fracture: Pelvic binder
• May require surgery to restore the stability and reconstruct the
pelvis
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Conclusion
• Children are susceptible to abdominal injury in trauma
due to less muscle and subcutaneous tissue to protect the
organ(s)
• Shock may be the presentation due to internal bleeding
• There may be delay in effect of injury especially in the
injury of gut and mesentry due to devasularization
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