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272
L. Weil
– Should be considered for patients that are severely
hemodynamically unstable, have massive blood loss, coagulopathic, acidotic, and hypothermic.
– This procedure involved controlling hemorrhage rst,
then controlling hollow viscus injury and associated contamination with sutures or a resection but without an anastomosis. Placement of an abdominal wound vacuum-assisted closure and planned return to the OR within 24–48h.

Clean Kills

• Not following the primary survey with a trauma patient.
• Trying to do a primary repair of an injury ≥50% of the bowel lumen circumference.
• Not looking for other injuries.
• Doing an anastomosis on a patient that is too unstable.

Bonus Points

• Left-sided injuries no longer require diversion. If the injury is small and the patient is stable, we can do a pri­mary repair on a left-sided colon injury.
• Even if a primary repair is an appropriate surgical plan, be prepared and know how to manage a patient that leaks.
• There are equal complication rates between stapled and hand-sewn anastomosis.
Words ofWisdom
• In a trauma setting, always start with the primary survey rst. Do not skip the secondary survey.
• Always deal with life-threatening injuries rst.
• Do not forget to look for other injuries. Run the bowel to avoid a missed bowel injury.
• If one is worried about the patient’s ability to heal an anastomosis, the safest answer is diversion.
• Do not forget that a damage control procedure is appro­priate on the right patient.
• The specic repair technique depends on the type and extent of the injury. Be comfortable describing a primary repair, resection and anastomosis, diverting colostomy and a damage control procedure.

Bibliography

Injury scoring scale. The American Association for the Surgery of
Trauma. 2023 Aug 17. https://www.aast.org/resources- detail/
injury- scoring- scale

Further Reading

Score. Available from: https://www.surgicalcore.org/modulecontent.
aspx?id=1000449

Rectal Trauma

MichaelD.Cline
85
Way Question May BeAsked?
A young male is a status post gunshot wound to the right lower quadrant. The primary survey demonstrates tachycar­dia and hypotension. Adjuncts are notable for a retained missile projecting over the left pelvis. The secondary survey is notable for peritonitis and gross blood on rectal examination.
A middle-aged female is a status post-high-speed motor vehicle accident. The primary survey is notable for tachycar­dia. Adjuncts are notable for symphysis pubis diastasis. The secondary survey demonstrates gross blood on rectal examination.
How toAnswer?
• History and physical examination (ATLS)
– Prehospital report of circumstances and interventions. – Primary survey (airway and cervical spine immobili-
zation, breathing and ventilation, circulation with hemorrhage control, disability, exposure, and environ­mental control).
– Adjuncts to the primary survey (CXR, KUB, pelvic
x-ray, eFAST).
– Secondary survey
Particular attention to peritonitis and gross blood on digital rectal examination (DRE).
– AMPLE history (allergies, medications, past medical
and surgical history, last meal, events).
• Diagnostic evaluation
– Hemodynamic stability: CT abdomen/pelvis with IV
contrast +/− rectal contrast.
M. D. Cline (*) Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA e-mail: Michael.Cline@jefferson.edu
– If DRE or CT is equivocal for extraperitoneal rectal
injury, rigid proctoscopy or exible sigmoidoscopy should be performed.
– Hemodynamic instability: eFAST or diagnostic perito-
neal lavage or aspiration (DPA/DPL) if eFAST is
unavailable or equivocal. – Peritonitis: laparotomy. – If there is concern for a concomitant extraperitoneal
rectal injury, rigid proctoscopy or exible sigmoidos-
copy should be performed.
• Management – General principles
Identify the location of injury: intraperitoneal or extraperitoneal. Determine the extent of injury
• Non-destructive: <50% of circumference with­out devascularization.
• Destructive: ≥50% of circumference and/or devascularization.
– Determine if high-risk for abdominal complications
when considering whether to perform an anastomosis.
Hemodynamic instability and/or severe metabolic derangements. Several fecal contamination. Transfusion of ≥4 packed red blood cells (PRBC).
– Intraperitoneal rectal injury—management is similar
to colon injury (see Chap. 84).
Non-destructive injury—debridement and colorrhaphy. Destructive injury.
• No high-risk features—segmental resection and anastomosis; may consider diverting loop ileostomy.
• High-risk features—Hartmann’s procedure.
– Severe hemodynamic instability and/or severe meta-
bolic derangements necessitating a damage control operation: segmental resection and temporary abdomi­nal closure.
– Extraperitoneal rectal injury: fecal diversion (loop
colostomy).
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_85
273
274
M. D. Cline

Common Curveballs

• Concomitant intra-abdominal and/or extra-abdominal injuries: manage as appropriate with consideration of per­forming a damage control operation.
• Severe hemodynamic instability and/or severe metabolic derangements: perform a damage control operation.
• Postoperative anastomotic dehiscence: management depends on postoperative day, hemodynamic status, and the presence or absence of sepsis and/or peritonitis.
– Variables favoring operative management: hemody-
namic instability, sepsis, peritonitis, <7 days postoperative.
– Operative management: resection and end
colostomy.
– Non-operative management: antimicrobial therapy
+/− percutaneous drainage (manage as colocutaneous stula).

Clean Kills

• Failure to triage the patient utilizing the principles of ATLS.
• Failure to diagnose and manage concomitant injuries.
• Failure to distinguish between intraperitoneal and extra­peritoneal as well as destructive and non-destructive inju­ries when determining management approach.
• Failure to account for the patient’s hemodynamic and metabolic status when considering anastomosis or fecal diversion.
Words ofWisdom
As in all trauma patients, adherence to the principles of ATLS is paramount in appropriately triaging the patient and excluding concomitant, life-threatening injuries. Diagnosis relies upon DRE, CT, and/or rigid proctoscopy or exible sigmoidoscopy. Management is dictated by the location (intra- or extra-peritoneal) and extent (destructive or non­destructive) of the injury as well as the hemodynamic and metabolic status of the patient (primary repair or fecal diversion).

Bibliography

Asensio JA, Trunkey DD.Current therapy of trauma and surgical criti-
cal care. 2nd ed. Philadelphia: Elsevier; 2015.
Bosarge PL, Como JJ, Fox N, et al. Management of penetrating
extraperitoneal rectal injuries: an Eastern Association for the Surgery of Trauma practice management guideline. J Trauma Acute Care Surg. 2016;80(3):546–51. https://doi.org/10.1097/
TA.0000000000000953.
Cullinane DC, Jawa RS, Como JJ, etal. Management of penetrating
intraperitoneal colon injuries: a meta-analysis and practice man­agement guideline from the Eastern Association for the Surgery of Trauma. J Trauma Acute Care Surg. 2019;86(3):505–15. https://doi.
org/10.1097/TA.0000000000002146.

Extremity Compartment Syndrome

MichaelD.Cline
86
Way Question May BeAsked?
Example 86.1
Following bifemoral cannulation for VA ECMO, your patient develops lower extremity ischemia. Several hours following the placement of a distal perfusion cannula, the ipsilateral lower extremity has become progressively edematous and rm.
Example 86.2
During the resuscitation of a patient with a 65% TBSA ther­mal burn, the nurse calls you given concern for increasing rmness of the bilateral upper extremities.
Example 86.3
During your triage of a trauma patient who was “found down,” your secondary survey is notable for tenderness and rmness of the bilateral buttocks and thighs.
Example 86.4
After management of a transfemoral penetrating injury with femoral artery interposition grafting and femoral vein liga­tion, is there anything else you would like to assess prior to leaving the operating room?
Physical Examination
• Pain with passive range of motion (early)
• Tense, noncompressible compartment
• Impaired sensation
– First web space, deep peroneal nerve, anterior
compartment
– Dorsum of foot, supercial peroneal nerve, lateral
compartment
– Plantar surface, tibial nerve, deep posterior
compartment
• Decreased motor strength
• Paralysis or pulselessness (late)
Diagnostic Evaluation
• Clinical diagnosis (compartment pressures may be mea­sured to conrm the diagnosis or if uncertainty exists)
• Compartment pressure measurement
– Commercial device (Stryker) – Needle–manometer system (16-gauge needle con-
nected to an arterial line setup via a three-way stop­cock, zero system at the level of the limb, inject 1cc of saline, measure compartment pressure)
• Creatine kinase (CK) is unnecessary for the diagnosis of compartment syndrome but valuable in the evaluation and management of rhabdomyolysis
How toAnswer?

Surgical Management

History
• Presentation (trauma, burn, crush, prolonged immobility, revascularization)
• Pain out of proportion to injury
• Paresthesia
M. D. Cline (*) Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA e-mail: Michael.Cline@jefferson.edu
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_86
• Leg fasciotomy – If initial evaluation is inconsistent with compartment
syndrome, interval assessments are necessary to exclude its subsequent development
– Indications for fasciotomy
Clinical diagnosis of compartment syndrome Delta pressure (diastolic blood pressure—measured compartment syndrome)<30mmHg
– Calf fasciotomy (two-incision technique)
Lateral incision (anterior and lateral compartments) is positioned between the tibia and bula from
275
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M. D. Cline
2–3 cm distal to the tibial tuberosity to 2–3 cm proximal to the lateral malleolus Incise the fascia anterior and posterior to the inter­muscular septum Protect the supercial peroneal nerve as it assumes a subcutaneous position in the distal third of the leg
– Medial incision (supercial and deep posterior com-
partments) is positioned 1–2cm posterior to the tibia from 2–3cm distal to the tibial tuberosity to 2–3cm proximal to the medial malleolus
– Incise the fascia of the supercial deep compartment
and then mobilize the soleus from the posterior aspect of the tibia to decompress the deep posterior compartment
– Protect the great saphenous vein
• Gluteal fasciotomy – Question mark incision (curvilinear incision connect-
ing the posterior superior iliac spine, greater trochan­ter, and the midline posterior thigh) or longitudinal incision (linear incision connecting the posterior super iliac spine, greater trochanter, and lateral thigh)
– Incise the fascia of the gluteus maximus, bluntly
spread the gluteus maximus, incise the fascia of the gluteus medius and minimus, incise the tensor fascia lata distally
• Thigh fasciotomy – Lateral incision (anterior and posterior compartments)
extending from the greater trochanter to 3–5cm proxi­mal to the lateral femoral condyle
Incise the fascia anterior and posterior to the inter­muscular septum; may require posterior ap mobilization
– Medial incision (medial compartment), which is rarely
needed, extends along the course of the great saphe­nous vein to 3–5cm proximal to the medial femoral condyle
• Forearm fasciotomy – Anterior lazy S (volar compartment) and posterior lon-
gitudinal (dorsal compartment) incisions
• Hypotensive patient – Utilize delta pressure (<30 mmHg) rather than abso-
lute compartment pressure (>30 mmHg) in conjunc­tion with physical examination
• Compartment syndrome conned to a specic
compartment
– Examine and/or measure pressures in all compart-
ments of the affected extremity, as certain compart­ments may remain unaffected
• Persistent signs/symptoms following fasciotomy – Examine each of the compartments of the affected
extremity to exclude a missed compartment or incom­plete fasciotomy

Clean Kills

• Failure to or delay in diagnosing compartment syndrome
• Inability to describe the operative conduct
• Missed compartment or incomplete fasciotomy
Words ofWisdom
Acute compartment syndrome of the extremity, whose etiol­ogies are numerous, results in myocutaneous and nervous tissue ischemia producing the characteristic signs and symp­toms of pain, pallor, paresthesia, and impaired sensation and strength. Diagnosis, while primarily clinical, may be sup­ported by measurement of compartment pressures. A key factor is to describe continued interval assessments in patients at risk, as compartment syndrome may evolve over time. Management consists of emergent fasciotomy to decompress the compartment, restore adequate perfusion, and avoid the morbidity associated with impaired limb func­tion or amputation, as well as rhabdomyolysis and renal failure.

Bibliography

Common Curveballs

• Encephalopathic patient or inability to obtain a complete physical examination (sedated patient)
– Maintain a high index of suspicion and/or obtain com-
partment pressures
• Delayed development of compartment syndrome
– Initial evaluation following revascularization demon-
strated a soft compartment, but hours later, the com­partment is tense; perform interval evaluation(s)
Köstler W, Strohm PC, Südkamp NP. Acute compartment syndrome
of the limb. Injury. 2004;35(12):1221–7. https://doi.org/10.1016/j.
injury.2004.04.009. Erratum in: Injury. 2005 Aug;36(8):991.
Corrected and republished in: Injury. 2005 Aug;36(8):992-8. https://
doi.org/10.1016/j.injury.2005.01.007. PMID: 15561110.
Mubarak S, Owen C. Double-incision fasciotomy of the leg for
decompression in compartment syndromes. J Bone Joint Surg Am. 1977;59(2):184–7.

Duodenal Trauma

LiaMichos andAnirudhKohli
87

Duodenal Injury Grading

• Grade 1: hematoma involving only one portion of the duodenum or partial thickness laceration that is not perforated.
• Grade 2: hematoma that involves more than one portion of the duodenum or laceration, which is <50% of the cir­cumference of the duodenal wall.
• Grade 3: 50–75% circumference laceration of D2 or 50–100% circumference laceration of D1, D3, or D4.
• Grade 4: >75% circumference laceration of D2 involving the ampulla and/or distal common bile duct.
• Grade 5: massive disruption/devascularization of the duo­denopancreatic complex.
Way Question May BeAsked?
A 37-year-old male presents to the trauma bay with a gun­shot wound (GSW) to the right ank. Airway is intact and bilateral breath sounds are heard. Vitals are as follows: HR 130, BP 94/62, RR 22, O2 saturation 97% on room air. GCS
15. A chest X-ray is within normal limits. An abdominal
X-ray shows a bullet seen in the left side of abdomen, with free intraperitoneal air. A large bore central venous catheter is placed, and a massive transfusion protocol is activated. On secondary survey, you do not nd any other injuries or GSWs. What are your next steps?
L. Michos Department of Surgery, Lankenau Medical Center, Wynnewood, PA, USA e-mail: lia.michos@jefferson.edu
A. Kohli ( Department of Surgery, Lankenau Medical Center, Wynnewood, PA, USA
Division of Acute Care Surgery, Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, USA e-mail: anirudh.kohli@jefferson.edu
*)
How toAnswer?
• You know the bullet is in the abdomen, so you should proceed to the operating room.
• If the patient is protecting their airway, have anesthesia intubate the patient in the OR in order to quickly perform a crash laparotomy if needed.
• Prep the patient from chin to knees.
• Begin with an exploratory laparotomy. Communicate with anesthesia prior to making the incision that they have blood available and are ready.
• If blood is encountered, pack all four quadrants.
Alternate Scenario
A 37-year-old male presents to the trauma bay after a motor vehicle crash. He was the restrained driver in a vehicle driv­ing at about 60 miles per hour and collided with the car in front of him as they stopped short. His airway is intact, and bilateral breath sounds are heard. Vitals are as follows: HR 110, BP 100/62, RR 22, O2 saturation 97% on 6L NC.GCS
15. Chest X-ray is within normal limits. FAST is negative.
Two large bore IVs are placed. Secondary survey shows a 2cm laceration to the right forehead, seatbelt sign across the upper abdomen, and a deformity of the right wrist. The patient has a C-collar in place, which was placed by EMS at the scene. Repeat vital signs show an HR 103, BP 122/88, RR 20, and O2 saturation of 98% on room air. The patient is stable, so you take him to the CT scanner for a CT head, c-spine, chest, abdomen, and pelvis, which shows a duodenal hematoma involving D1, a Grade 2 right kidney laceration, and Grade 1 splenic laceration. What are your next steps?
• If he remains stable, you can treat him conservatively with bowel rest, with or without an NGT.
• Place the patient in the ICU and monitor his hemoglobin with serial hemoglobin/hematocrit levels.
• Do not forget to order X-rays of his right wrist once stable and in the ICU to evaluate for injury.
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_87
277
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L. Michos and A. Kohli
• Consider obtaining a CT with gastrogran through his naso­gastric tube or by mouth once stabilized to determine if there is any ow of contrast past the duodenal hematoma.
What are the imaging ndings suggestive of duodenal
injury?
• duodenal wall thickening
• free uid around the duodenum
• uid in the right pararenal space
• hypo-enhancement of the duodenal wall
• extravasation of oral contrast into the lesser sac
• “coiled spring sign”: can be seen when there is an obstructing duodenal hematoma
How do you manage each type of duodenal injury grade?
• Grade 1 and Grade 2 duodenal hematomas are usually managed nonoperatively. Surgical intervention is reserved for those who fail nonoperative management, usually after 3 weeks. Surgical intervention consists of evacua­tion of the duodenal hematoma with a simple two-layered repair.
• Grade 1 lacerations are repaired by a Lembert suture.
• Grade 2 full-thickness lacerations are debrided and repaired by primary closure in two layers with an absorb­able inner layer and a nonabsorbable outer layer. Remember to close longitudinal injuries transversely so as to not narrow the lumen.
• Grade 3 lacerations can also usually be debrided and pri­marily closed in two layers. If a primary repair cannot be performed, then the patient should undergo resection with anastomosis by duodenoduodenostomy.
– A pyloric exclusion with gastrojejunostomy should
also be considered to protect the duodenoduodenos­tomy for a tenuous repair.
– If the defect is too large, then a duodenojejunostomy
with Roux-en-Y reconstruction should be done.
• Grade 4/5 injuries in patients who are unstable should undergo suture repair of the duodenal laceration and wide drainage with a staged Whipple procedure.
What is the role of conservative management in duodenal
injuries?
• Most duodenal hematomas resolve without intervention. Conservative management of duodenal hematomas con­sists of nasogastric decompression or bowel rest with no nasogastric tube and nutritional support, often with total parenteral nutrition.
How do you expose the duodenum?
• To expose D1 and D2, perform an extended Kocher maneuver. For exposing D2 further, D3 and D4 a Cattell– Braasch maneuver (right medial visceral rotation) is done. You can also mobilize the ligament of Treitz to expose D4 further.
What are the major complications and their correspond-
ing management after duodenal repair?
• Some of the complications post duodenal repair include formation of an intra-abdominal abscess that can be either drained if accessible or monitored on intrave­nous antibiotics; gastrointestinal bleeding that can be managed with blood transfusion, angiography with possible embolization, stress ulcer treatment and pro­phylaxis, possible endoscopic intervention; breakdown of anastomosis—may need drainage with antibiotics versus operative intervention if the patient is in septic shock and it is an early leak likely from technical factors.

Clean Kills

• Taking the unstable patient with a GSW to the CT scanner instead of proceeding to the operating room immediately.
• Not systematically completing your trauma assessment
• Missing other injuries, including outside the abdominal cavity or within the abdominal cavity
• Failure to place a jejunal feeding tube or thinking about enteral access in the OR?
• Taking the stable patient to the OR for a duodenal hematoma?

Bonus Points

• When a duodenal hematoma is encountered during a trauma laparotomy, assess for luminal compromise, and if that is thought to be more than 50%, then drain the hema­toma and perform a simple repair
• In a complex multi-trauma situation with a long­anticipated recovery time consider placement of feeding access and can potentially consider a gastro-jejunostomy tube for drainage and feeding with the same tube.
87 Duodenal Trauma
279
Words ofWisdom
Duodenal trauma has a low overall incidence but a high rate of mortality and morbidity associated with it due to delays in diagnosis and missed injuries. Hence, a high index of suspi­cion based on the mechanism of injury and signs/symptoms is paramount. If recognized early and effectively managed the complication rate is much lower. With blunt traumatic injury in a stable patient, one must consider performing cross-sectional imaging with intravenous contrast and if pos­sible with oral contrast as well to rule out a major duodenal injury. Healing from this injury depends on adequate blood supply to the repair, minimizing contamination, and optimiz­ing nutrition (preferably enteral nutrition.)

Further Reading

Management of duodenal trauma in adults. https://
www.uptodate.com/contents/management- of­duodenal- trauma- in- adults?search=duodenal%20 trauma&source=search_result&selectedTitle=1~150&usa ge_type=default&display_rank=1#H2054906.
Malhotra A, Bif WL, Moore EE, Schreiber M, Albrecht RA, Cohen
M, Croce M, Karmy-Jones R, Namias N, Rowell S, Shatz DV, Brasel KJ.Western Trauma Association critical decisions in trauma: diagnosis and management of duodenal injuries
SCORE. https://www.surgicalcore.org/modulecontent.
aspx?id=1000527.

Genitourinary Trauma

LiaMichos andAnirudhKohli
88
Renal Injury Grading (Lewis 2023; Peitzman etal. 2020)
• Grade 1: contusion causing microscopic or gross hematu­ria with normal urologic studies or a hematoma that is subcapsular, non-expanding, and does not have a paren­chymal laceration
• Grade 2: nonexpanding perirenal hematoma, which is conned to the Gerota’s fascia or a laceration that is <1cm and without urinary extravasation
• Grade 3: >1cm laceration without urinary extravasation or active bleeding in the Gerota’s fascia
• Grade 4: laceration extending through the renal cortex, collecting system, and medulla or a segmental renal artery or renal vein injury
• Grade 5: main renal artery or vein laceration or avulsion of renal hilum or completely shattered kidney
Ureter Injury Grading (Peitzman etal. 2020)
• Grade 1: contusion or hematoma without devascularization
• Grade 2: <50% ureteral transection
• Grade 3: >50% ureteral transection
• Grade 4: Complete ureteral transection with <2 cm of devascularization
• Grade 5: avulsion of the ureter with >2 cm of devascularization
Bladder Injury Grading (Peitzman etal.
2020)
• Grade 1: contusion or intramural hematoma or a partial thickness laceration
• Grade 2: Extraperitoneal bladder laceration that is <2cm
• Grade 3: Extraperitoneal laceration >2cm or intraperito­neal laceration <2cm
• Grade 4: intraperitoneal bladder laceration that is >2cm
• Grade 5: extraperitoneal or intraperitoneal bladder wall laceration extending into the bladder neck or trigone (ure­teral orice)

Urethral Injury Grading

• Type 1: Posterior urethra is stretched but intact.
• Type 2: Pure posterior urethral injury with a tear of the membranous urethra above the urogenital diaphragm (UGD); partial or complete.
• Type 3: Combined anterior and posterior urethral injury with the involvement of UGD; partial or complete.
• Type 4: Bladder neck injury with extension into the urethra.
• Type 4a: Injury of the base of the bladder with periure­thral extravasation.
• Type 5: Pure anterior urethral injury; partial or complete.
Way Question May BeAsked?
L. Michos Department of Surgery, Lankenau Medical Center, Wynnewood, PA, USA e-mail: lia.michos@jefferson.edu
A. Kohli ( Department of Surgery, Lankenau Medical Center, Wynnewood, PA, USA
Division of Acute Care Surgery, Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, USA e-mail: anirudh.kohli@jefferson.edu
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_88
*)
A 35-year-old female presents to the trauma bay after a bike versus auto collision. She was struck from the side as the car
was traveling at about 50 mph. She was found about 10feet from her bike and believed she lost consciousness. On arrival at the trauma bay, the airway is intact, and bilateral breath sounds are heard. Femoral pulses are 2+ bilaterally. Vital signs are as follows: HR 122, BP 112/87, RR22, O2 saturation 98% on 6L nasal cannula. GCS 14 (1 point off for confusion). Chest X-ray is within normal limits. The
281
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L. Michos and A. Kohli
abdominal X-ray is also within normal limits. The pelvic X-ray does not show a pelvic fracture. FAST is inconclusive. On a secondary survey, you nd that the abdomen is soft but tender to palpation in the suprapubic region and lower quadrants, there is blood at the urethral meatus, and the patient has multiple bruises and lacerations/abrasions on her extremities. She remains stable. What are your next steps?
How toAnswer?
• As the patient is hemodynamically normal and has blood at the meatus, one must consider a retrograde urethro­gram (RUG) to rule out a urethral injury.
• The procedure involves injecting 20–30mL of diluted, water-soluble contrast into the urethral meatus and then obtaining an X-ray. A positive RUG study will demon­strate extravasation of contrast outside of the serpentine cylinder of the urethral tract.
• As the FAST is inconclusive, RUG does not show contrast extravasation, and the patient is stable so you may next proceed to the CT scanner.
• Given the history provided and her ndings on the sec­ondary survey, you proceed with a CT of the head, c-spine, chest, abdomen, and pelvis. You also ask the CT tech to perform a CT cystogram.
• If you nd an extraperitoneal bladder injury (Lewis
2023):
– Drain with a urinary catheter for 10–14days if there is
no bladder neck injury, concomitant rectal/vaginal injury, or open pelvic fractures
• If you nd an intraperitoneal bladder injury (Lewis
2023):
– Always requires repair – Debride devitalized tissue and close in two layers
using absorbable sutures—rst layer is mucosa and muscularis, and the second layer is muscularis and serosa
– Assess ureteral orices while the bladder is open
Alternate Scenario
A 35-year-old female presents to the trauma bay after GSW to the lower abdomen. On arrival at the trauma bay, her airway is intact, and she has bilateral breath sounds. Femoral pulses are 2+ bilaterally. Vital signs are as follows: HR 134, BP 92/56, RR26, O rebreather. GCS 14 (1 point off for confusion). A cordis catheter is placed and massive transfusion protocol is acti­vated. On a secondary survey, you again see the bullet hole in the right lower abdomen and another bullet hole in the
saturation 97% on a non-
2
right ank region. The patient is peritonitic on the exam. What are your next steps?

How to Answer?

• You have two holes and no bullets seen in the body, and the patient is unstable with peritoneal signs, so you should proceed to the operating room.
• If the patient is protecting their airway, have anesthesia intubate the patient in the OR in case the patient becomes unstable.
• Prep the patient from chin to knees.
• Begin with an exploratory laparotomy. Communicate with anesthesia prior to making the incision and through­out the case.
• What are the signs of renal injury?
– Hematuria is the most common sign. Can also have
ank pain, peritonitis, abdominal distention, or ecchy­mosis in the ank back or abdomen.
– The standard diagnostic tool for hemodynamically
stable patients is CT abdomen/pelvis with IV contrast (Lewis 2023).
• What is the management of renal injuries by grade?
– Grades 1, 2, and 3: usually managed nonoperatively
with observation (Peitzman etal. 2020)
ICU monitoring with serial abdominal exams and hemoglobins (Lewis 2023)
– Grade 4: depends if there is an injury to the renovascu-
lar pedicle or not (Peitzman etal. 2020)
If renovascular pedicle involved: may be able to send to interventional radiology (IR) for angioembolization (Lewis 2023; Peitzman etal.
2020)
If renovascular pedicle NOT involved: may be able to observe the patient with bed rest and a repeat
CT scan in 48–72h (Peitzman etal. 2020) – Grade 5: proceed to the OR – Other indications for operative intervention include:
ureteropelvic avulsion, major vascular injuries, or uri­nary extravasation (Peitzman etal. 2020)
– Of course, if the patient is unstable, they require opera-
tive intervention
• What are the signs and how to diagnose bladder injury? – lower abdominal/suprapubic pain, hematuria, inability
to pass urine, abdominal distension, perineal ecchymo-
ses (Lewis 2023) – FAST or X-ray cystogram may be used (Lewis 2023) – CT cystogram is very sensitive and specic and has
essentially replaced X-ray cystogram (Lewis 2023)
• What are the signs and how to diagnose ureteral injury? – Hematuria – Mechanism of injury—more likely to be penetrating
than blunt (Lewis 2023)