Read Rosen & Barkin's 5-Minute Emergency Medicine Consult Online

Authors: Jeffrey J. Schaider,Adam Z. Barkin,Roger M. Barkin,Philip Shayne,Richard E. Wolfe,Stephen R. Hayden,Peter Rosen

Tags: #Medical, #Emergency Medicine

Rosen & Barkin's 5-Minute Emergency Medicine Consult (302 page)

BOOK: Rosen & Barkin's 5-Minute Emergency Medicine Consult
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SIGNS AND SYMPTOMS
  • Pain
  • Localized ecchymosis and swelling
  • Scleral or corneal laceration
  • Extrusion of intraocular contents
  • Markedly decreased visual acuity
  • Limited extraocular motion
  • Hyphema
  • Severe subconjunctival hemorrhage and edema, especially if circumferential bloody chemosis
  • Abnormally deep or shallow anterior chamber
  • Low intraocular pressure:
    • Note: Do not perform tonometry if there is suspected rupture.
  • Irregular pupil (points toward lesion)
  • Subluxed lens
  • Commotio retinae—gray-white discoloration of the retina
History
  • Mechanism of injury:
    • Assess for possibility of retained intraocular foreign body
  • History of previous eye surgery
  • Preinjury visual acuity
  • Assess tetanus status
  • Ascertain time of last PO intake
Physical-Exam
  • Penlight or slit-lamp exam observing for signs of globe rupture
  • If the diagnosis of ruptured globe is made, defer further ocular exam until the time of surgical repair:
    • Prevents placing any undue pressure on the eye and risking extrusion of the intraocular contents
  • If no evidence of globe rupture on initial survey, proceed with thorough ophthalmologic exam:
    • Visual acuity
    • Slit-lamp exam
    • Cornea
    • Anterior chamber
    • Iris
    • Sclera
    • Fundus
    • Retina
  • Seidel test: Observe if fluorescein moves away as contents (which appear yellow-green) leak out at site of rupture:
  • Measure intraocular pressure
    • Perform only if globe rupture is definitely
      not
      present.
  • Ultrasound (only if rupture not suspected)
ESSENTIAL WORKUP

Perform thorough ocular exam as outlined above:

  • Once diagnosis of globe rupture is suspected or made, defer further exam until time of repair.
DIAGNOSIS TESTS & NTERPRETATION
Lab

Preoperative labs:

  • CBC
  • Electrolytes
  • Coagulation studies
Imaging
  • Orbital radiograph (anteroposterior/lateral) for metallic intraocular foreign body
  • CT scan of the orbits (axial and coronal views)
  • MRI scan of the orbits after retained metallic foreign body is ruled out
  • B-scan US of the eye
Diagnostic Procedures/Surgery
  • Slit-lamp
  • Fluorescein
DIFFERENTIAL DIAGNOSIS
  • Intraocular foreign body
  • Hyphema
  • Severe subconjunctival hemorrhage and chemosis
  • Partial corneal laceration
  • Partial scleral laceration
TREATMENT
PRE HOSPITAL
  • Place a shield (not patch) over eye with no pressure on the globe.
  • Use a Styrofoam cup if no shield available.
INITIAL STABILIZATION/THERAPY
  • Keep manipulation of the eye to a minimum if ruptured globe is suspected.
  • Try to prevent any activity that will cause an increase in intraocular pressure such as straining, coughing, or vomiting.
ED TREATMENT/PROCEDURES
  • Prepare for definitive surgical management:
    • Emergent ophthalmologic consultation
    • Thorough physical exam to identify concurrent injuries
    • Preoperative labs and ECG as indicated
    • No food or drink (NPO)
  • Minimize intraocular pressure to reduce further injury
    • Administer antiemetic for nausea/vomiting
    • Elevate the head of the bed
    • Protective eye shield (NO pressure on the globe itself)
  • Update tetanus status.
  • Administer prophylactic antibiotics IV:
    • Skin organisms (staph, strep) most common
    • Consider injury-specific contaminants in cases of animal bites, organic foreign body, etc.
    • Vancomycin + ceftazidime OR vancomycin + ciprofloxacin if allergic to penicillin
  • Succinylcholine is relatively contraindicated:
    • However, with a defasciculating dose of a nondepolarizing agent and sufficient anesthesia, it may be used.
Pediatric Considerations
  • Consider nonaccidental trauma
  • Because of risk of extrusion of intraocular contents, straining/crying should be avoided. Try to keep them happy!
MEDICATION
  • Ceftazidime: 1–2 g (peds: 30–50 mg/kg) IV q8h
  • Ciprofloxacin: 400 mg (peds: 10 mg/kg) IV q12h
  • Clindamycin: 450 mg (peds: 8–12 mg/kg) IV q8h
  • Ondansetron (Zofran): 4 mg IV
  • Prochlorperazine (Compazine): 5–10 mg IV/IM
  • Tobramycin: 2 mg/kg (peds: 2 mg/kg) IV q8h
  • Vancomycin: 15 mg/kg IV q8–12h (peds: 10 mg/kg IV q6h)
FOLLOW-UP
DISPOSITION
Admission Criteria
  • All patients with globe rupture/penetrating eye injuries
  • Early enucleation for severe injury
Discharge Criteria

Globe penetration excluded

Issues for Referral
  • Emergent ophthalmologic consultation in the ED may be needed to definitively rule out globe rupture owing to difficulty with exam and the desire to minimize manipulation of the eye.
  • Speed is of the essence since the risk of infection increases with prolonged time to operative repair.
  • If appropriate, patient should be counseled on use of protective eyewear to prevent recurrence.
FOLLOW-UP RECOMMENDATIONS

Postoperative ophthalmology follow-up

PEARLS AND PITFALLS
  • Do not manipulate the eye if you suspect or confirm a ruptured globe:
    • Place eye shield over affected eye.
  • Administer antiemetic for patients with nausea and vomiting to prevent elevation of intraocular pressure and extrusion of globe contents.
  • Update tetanus
  • Empiric antibiotics tailored to clinical scenario
ADDITIONAL READING
  • Linden JA, Renner GS. Trauma to the globe.
    Emerg Med Clin North Am
    .1995;13(3):581–605.
  • Marx JA, Hockberger RS, Walls RM, et al.
    Rosen’s Emergency Medicine
    . 7th ed. Philadelphia, PA: Saunders; 2009;863–864.
  • Navon SE. Management of the ruptured globe.
    Int Ophthalmol Clin
    . 1995;35:71–91.
  • Sabaci G, Bayer A,Mutlu FM, et al. Endophthalmitis after deadly-weapon-related open-globe injuries: Risk factors, value ofprophylactic antibiotics, and visual outcomes.
    Am J Ophthalmol
    .2002;133:62–69.
  • Skarbek-Borowska SE, Campbell KT. Globe rupture and nonaccidental trauma: Two case reports.
    Pediatr Emerg Care
    . 2011;27(6):544–546.
See Also (Topic, Algorithm, Electronic Media Element)
  • Blowout Fracture
  • Corneal Abrasion
  • Corneal Foreign Body
  • Hyphema
  • Retinal Detachment
  • Visual Loss
CODES
ICD9
  • 871.0 Ocular laceration without prolapse of intraocular tissue
  • 871.2 Rupture of eye with partial loss of intraocular tissue
ICD10
  • S05.20XA Oclr lac/rupt w prolaps/loss of intraoc tiss, unsp eye, init
  • S05.30XA Oclr lac w/o prolaps/loss of intraoc tissue, unsp eye, init
GLOMERULONEPHRITIS
Melissa H. White

Carolyn Maher Overman
BASICS
DESCRIPTION
  • Syndrome characterized by:
    • Hematuria
    • Proteinuria
    • Red blood cell casts
    • Hypertension
    • Renal insufficiency
  • Common pathway of multiple diseases resulting in intraglomerular inflammation and cellular proliferation
  • Contributing factors:
    • Genetics
    • Infectious
    • Rheumatologic
    • Leading to antibody deposition:
      • Antibody attaches to glomerular antigen (native or implanted).
      • Circulating antigen–antibody complex deposited
    • Causing an influx and activation of inflammatory mediators:
      • Leukocytes, complement, cytokines
      • Cell-mediated immune mechanisms
  • Results in glomerular dysfunction
  • Persistent inflammation that can lead to scarring and permanent damage.
BOOK: Rosen & Barkin's 5-Minute Emergency Medicine Consult
13.27Mb size Format: txt, pdf, ePub
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