Trauma Surgery Review Flashcards
What is a grade I pancreatic injury
small hematoma/superficial laceration without duct injury
small hematoma/superficial laceration without duct injury of the pancreas…give grade of injury
grade I
What is a grade II pancreatic injury
large hematoma/large laceration without duct injury
Grade of following injury: pancreas with large hematoma/laceration without duct injury
grade II
Grade III pancreatic injury
distal pancreatic laceration/hematoma with duct injury
Grade IV pancreatic injury
proximal pancreatic hematoma/laceration with duct injury
Grade V pancreatic injury
major disruption of pancreatic parenchyma at head of pancreas
how do you expose a tracheal injury, if its in the distal third of the trachea
right posterolateral thoracotomy
how would you expose an injury to the proximal two thirds of the trachea
cervical incision
GCS scores for eye opening
1 - no eye opening
2- eye opening to painful stimuli
3 - eye opening to voice
4 - spontaneous eye opening
GCS score for verbal
1 - no sound 2 - no words, sound only 3 - non-coherent words 4 - disoriented conversation 5 - normal conversation
GCS score for motor
1 - no movement
2 - decerebrate posturing (arms straight out)
3 - decorticate posturing (arms close to chest)
4 - withdrawal from painful stimuli
5 - localization to painful stimuli
6 - follows commands
stress multiplier for TEE in elective surgery
1-1.2
stress multiplier for TEE in multiple fractures
1.1-1.3
stress multipler of TEE for severe infection
1.2-1.6
stress multiplier for TEE in burns
1.5-2.1
baseline energy requirement
25-30 kcal/kg of ideal body weight
Physiology for hypotension in tension pneumothorax
decreased venous return = decreased CO and hypotension
when do you explore a Zone III hematoma in trauma surgery
penetrating injury causing a zone III hematoma is always explored
when do you not explore a Zone III hematoma in trauma surgery
a blunt injury leading to the hematoma should not be explored…instead you do pelvic packing, fix the bones, and IR to embolize what is bleeding
How do you calculate a delta pressure in an extremity?
Diastolic pressure - compartment pressure
What delta pressure would prompt you to consider a fasciotomy?
Delta pressure < 20-30 mmHg
In what ligament is the splenic artery suspended?
splenorenal ligament
postsplenectomy hematology picture
- howell jolly bodies, erythroblasts, heinz bodies
- leukocytosis
- thrombocytosis
how much splenic tissue do you need to keep immunocompetence?
one third
four compartments of the lower leg?
anterior
lateral
superficial posterior
deep posterior
how do you perform 4 compartment fasciotomy?
- lateral incision: 15-18 cm incision 1 cm posterior to fibular head down to superior of Lateral Malleolus
- anterior incision 15-18 cm incision 3-4 finger breaths posterior to medial edge of tibia
What compartments are decompressed with a medial incision in a four compartment fasciotomy?
Superficial posterior
Deep posterior
Which compartments are decompressed with a lateral incision in a four compartment fasciotomy?
Anterior
Lateral
what causes upper airway damage in burn injuries?
heat from inhaled air
what causes distal airway damage in burn victims?
inhaled toxins
Cattell-Braasch maneuver
Right colon mobilized and rotated medially
Maddox maneuver
left colon mobilized and rotated medially
Best way to evaluate for rectal injury in stable patient? After noticing blood at anus
CT scan with rectal contrast
Why should you be worried about lateral compression pelvic fractures?
- 25% of them are associated with major arterial blood loss
Indication for surgical evacuation for Epidural Hematoma?
> 1.5 cm in thickness or midline shift > 5 mm
Indication for surgical evacuation for Subdural Hematoma
> 1 cm in thickness or > 5 mm midline shift
Indication for surgical evacuation for Intraparenchymal hemorrhage
large clot causing > 5 mm of midline shift
Indication for non-operative management of a fracture?
- non-displaced
- incomplete fracture
- impacted fractures in elderly patients or those with osteopenia
first line treatment for sub glottis stenosis?
serial dilations
how would you approach a left subclavian artery injury
- left anterior thoracotomy in 3rd intercostal space (proximal control)
- transverse incision superior to clavicle for distal control
which burns tend to need skin/graft coverage?
- deep 2nd degree
- 3rd degree
- 4th degree
why do deep 2nd degree burns tend to need graft coverage?
- burn reaches dermal appendages, which prevent repithelialization
when can you primarily close a GI injury?
- less than a cm in size
- minimal contamination
when is it indicated to do a perimortem cesarean section?
- fetus is greater than 24 weeks old
- mother lost pulses within 4 minutes
how do you repair a tracheal injury?
in one layer with absorbable suture and strap muscle to buttress
left-sided medial visceral rotation eponym
Mattox maneuver
right-sided medial visceral rotation eponym
Cattell-Braasch Maneuver
right renal artery goes posterior or anterior to IVC?
posterior
Fall down stairs with motor and sensation deficits in upper extremities, lower extremities are normal
Central cord syndrome
Bilateral loss of motor, pain and temperature…further down intact vibration and proprioception
Anterior cord syndrome
Loss of motor vibration and proprioception on one side with loss of pain and temperature on the other side
Brown-sequard syndrome
- lesion on ipsilateral side of motor loss
Loss of only proprioception and vibration
Posterior cord syndrome