Trauma Flashcards
Indications for laparotomy in stab wound
Evisceration<div>Peritonitis</div><div>Hemodynamic instability</div><div>Impalement</div><div>Frank blood on NG/rectal</div>
<p>Name 3 patient or wound characteristics that would decrease the reliability of Local wound exploration (LWE) for anterior stabs.</p>
<ul> <li>Small puncture wounds (eg - ice pick)</li> <li>Significant obesity</li> <li>Multiple stab wounds</li> <li>Lack of patient co-operation</li> <li>Long tangential stab wounds</li> </ul>
<p>There is no commercial binder available. What else can you do? Describe.</p>
<p>What is a common pitfall to avoid?</p>
<p>‣Use a folded bedsheet centered over the <em>trochanters </em>secure with towel clips.</p>
<p>‣Internal rotation of legs and taping the ankles.</p>
<p>‣Avoid placing over the iliac crests.</p>
What non-abdominal injuries are associated with seat belt inj
L-Spine Chance #
“<img></img><div>What is this #</div><div>Stable vs unstable?</div><div>Why?</div>”
<p>Chanse # (Transverse # through vertebral body with posterior element involvement/splaying - involves PLL. Misdiagnosed as compression # )</p>
<div>Unstable</div>
<div>3 column involvement</div>
<p><strong>Hard and Soft Signs of Major Aerodigestive or Neurovascular Injury </strong></p>
“<p><img></img></p> <strong>Anatomical</strong> <strong>Hard Sign</strong> <strong>Soft Sign</strong> <span><strong>Airways</strong></span> <span>Airways compromise</span> <span>Hemoptysis</span> <span>Air bubbling through the wound</span> <span>Dyspnea, Dysphonia</span> <span>Massive SC emphysema</span> <span>Chest tube air leak</span> <span><strong>Vascular</strong></span> <span>Expanding/pulsating hematoma</span> <span>Non expanding hematoma</span> <span>Active/brisk bleeding</span> <span>Oroparyngeal blood</span> <span>Hemorrhagic shock</span> <span><strong>GIT</strong></span> <span>Hematemesis</span> <span>Dysphagia</span> <span><strong>Neuro</strong></span> <span>Neuro deficit</span> <span><strong>Others</strong></span> <span>Subcut or mediastinal air</span> <span>Crepitus</span> “
Brown-Sequard syndrome
Hemisection of SC<div>Ipsilateral loss of vibration/properioception</div><div>Ipsilateral motor loss (lat corticospinal tr)</div><div>Contralateral loss of pain/temp</div>
Can you remove C-collar after nefgative CT in blunt trauma in obtunded patient?
Yes if the patient can grossly move all 4 limbs (normal motor exam)
Name potential 4 harms of C-Spine immoblization
Increased ICP due to decrease venous return<div>Pressure ulcers</div><div>Increased aspiration risk</div><div>Impaired airway access</div><div>Pain</div><div>Potential for missed injuries</div>
<p>Explain the anatomic reason for the clinical findings of UE weakness in central cord syndrome</p>
<p>Fibers controlling UE are central</p>
<p></p>
<p>Tight spinal canal + hyperextension injury results in bleeding/edema into central part of cord - not always any acute bony abnormality</p>
<p><b>What should your next management steps be?</b></p>
<p>Switch to an Aspen collar, consult neurosurgery, MRI</p>
<div></div>
DOPE
Dislodgement of EET<div>Obstruction of ETT</div><div>PTX</div><div>Equipment failure</div><div><br></br></div><div>Others:</div><div>Temponade</div><div>air embolism</div><div>air trapping</div>
2018 ATLS updates
“<img></img><div><img></img><br></br></div><div><img></img><br></br></div>”
Anticoagulation reversal guidleines
“<img></img>”
PECARN
“<img></img>”
Canadian C-Spine rule in trauma
“<img></img>”
What is meant by (Dangerous Mechanisms) in trauma?
• Fall from > 1 meter/5 stairs<br></br>• Axial load of head<br></br>• MVC with ejection, rollover, > 60 mph<br></br>• Motorized recreational vehicle collision<br></br>• Bicycle collision
Low risk factors (prior to assessing ROM)
Simple rear-end MVC<br></br>Sitting position in ED<br></br>Ambulatory at any time<br></br>Delayed onset of neck pain<br></br>No midline cervical tenderness
CERVICAL SPINE TRAUMA<br></br>NEXUS Criteria
N - Neuro deficit<br></br>E - EtOH (alcohol)/intoxication<br></br>X - eXtreme distracting injury<br></br>U - Unable to provide history (altered LOC)<br></br>S - Spinal tenderness (midline)<br></br>Imaging indicated if any present
“<img></img><div>Name 3 potential vision threatening Dx ass with this trauma</div>”
Orbital floor / blowout #<div>Globe rupture</div><div>Retrobulbar hematoma</div><div>Hyphema</div><div><br></br></div><div>NB: No points for orbital rim # as it is not vision-threatening</div>
<p>What are some physical findings of an orbital blow-out fracture?</p>
<ul> <li>Enopthalmos</li> <li>Infraorbital paresthesia</li> <li>Impaired upward gaze</li> </ul>
“<img></img><div>Which eye is affected? Why?</div>”
Left eye<div>Inf rectus entrapment</div>
<p>Name 2 physical findings of a retrobulbar hematoma.</p>
“Exophthalmos<div>Decreased VA</div><div>Increased IOP</div><div><span>Relative Afferent Pupillary Defect (</span><b>RAPD</b><span>)</span><br></br></div><div>Subconjuctival hge</div>”
<p>What ultrasound finding rules-in a pneumothorax? Describe</p>
<p>Lung point - when you have lung slide and lack of lung slide in the same rib space.</p>
<p><strong>Name 3 limitations of FAST exam in blunt abdominal trauma</strong></p>
<ol> <li>Does not detect retroperitoneal injury</li> <li>Operator dependent (250-750cc)</li> <li>Can be negative early in trauma</li> <li>Does not detect perforated viscus (unless FF)</li> <li>False negatives - clotted blood, adhesions</li> <li>False positives - ascites, physiological FF</li> <li>Indeterminate scans (rib shadow etc)</li> </ol>
What is permissive hypotension
<p>Restriction of volume replacement to:</p>
<ul> <li>Avoid clot dislodgement</li> <li>Avoid dilution of clotting factors</li> <li>Avoid the triad of death (hypothermia, acidosis and coagulopathy)</li> </ul>
<div></div>
<div>Tolerated SBP of 70 (mPB 50-60)</div>
<div></div>
<div><strong>CI in:</strong></div>
<div></div>
<ul> <li>TBI with GCS < 8</li> <li>SCI</li> <li>No direct access to OR</li> </ul>
Indications for MTP
<div>ABC score</div>
> 2 of:<div>Penetrating Torso inj</div><div>+FAST</div><div>SBP<90</div><div>HR>120</div><div><br></br></div><div>Others:</div><div>2 units in 4 hrs or >150 ml/hr</div>
Complications of MTP
Hypothermia<div>HyperK</div><div>HypoCa</div><div>Transfusion reaction</div><div>Abdominal Compartment synd</div><div>TRALI</div><div>TACO</div>
<p>What are the indications for imaging of blunt renal trauma in adults?</p>
<ul> <li>Adults - imaging if gross hematuria <strong>or</strong> SBP <90 + any hematuria</li> <li>(Vs kids - anything >50 RBC/hpf requires imaging)</li> </ul>
Indications for CT in blunt abd trauma in children
Abd tenderness<div>Unreliable exam</div><div>AST/ALT>100</div><div>Gross hematuria</div>
Indications of chest tube in occult PTX
Mech vent<div>Air transfer</div><div>Ground transfer with personell inexperienced of putting chest tubes</div><div>Clinical situation</div>
C-Spine rules
“<img></img>”
Exclusion criteria for Canadian C-spine rule
Non-traumatic cases<div>GCS <15</div><div>Unstable VS</div><div>Age <16</div><div>Acute paralysis</div><div>Known vert dis</div><div>Previous c-spine surgery</div>
Simple rear end MVA EXCLUSIONS:
<div>pushed into oncoming traffic</div>
<div>hit by a bus/large truck</div>
<div>rollover</div>
<div>hit by high speed wehicle</div>
<p>Name 3 risk factors that should prompt further screening for Blunt CerebroVascular Injury in asymptomatic patients?</p>
<ul> <li>Severe facial trauma - especially Lefort II or III</li> <li>Basilar skull # with carotid canal involvement</li> <li>Any C1-C3 #</li> <li>Other C-spine #’s involving transverse foramen, subluxation or ligamentous injury</li> <li>Near-hanging with anoxic brain injury</li> <li>Severe TBI with GCS <6</li> <li>Clothesline-type injuries</li> </ul>