Keck School Faculty

Morgan Anne Schellenberg

Morgan Anne Schellenberg

Assistant Professor of Clinical Surgery
Surgery
2051 Marengo Street Health Sciences Campus Los Angeles

Excluding Hollow Viscus Injury for Abdominal Seat Belt Sign Using Computed Tomography JAMA Surg. 2022 Sep 01; 157(9):771-778. . View in PubMed

Emergency physician and nurse discretion accurately triage high-risk trauma patients Eur J Trauma Emerg Surg. 2022 Jul 29. . View in PubMed

Prospective Evaluation of the Selective Nonoperative Management of Abdominal Stab Wounds: When is it Safe to Discharge? J Trauma Acute Care Surg. 2022 Jul 05.. View in PubMed

Pain Management in Pediatric Trauma Clin Pediatr (Phila). 2022 Jun 23; 99228221106469. . View in PubMed

Optimal timing of venous thromboembolic chemoprophylaxis initiation following blunt solid organ injury: meta-analysis and systematic review Eur J Trauma Emerg Surg. 2022 Jun; 48(3):2039-2046. . View in PubMed

Falls from Ladders: Injury Patterns and Outcomes J Trauma Acute Care Surg. 2022 May 25. . View in PubMed

Adolescent Trauma During the COVID Pandemic: Just Like Adults, Children, or Someone Else? Am Surg. 2022 May 18; 31348221101475.. View in PubMed

Injury Patterns Following Falls Down Open Manholes Am Surg. 2022 May 16; 31348221101507. . View in PubMed

Predictors of Clinical Outcomes Following Laparoscopic Colectomy for Traumatic Injury Am Surg. 2022 May 13; 31348221101513. . View in PubMed

Complications Following Temporary Bilateral Internal Iliac Artery Ligation for Pelvic Hemorrhage Control in Trauma Am Surg. 2022 May 10; 31348221101509. . View in PubMed

Does mortality after trauma team activation peak at shift change? Surgeon. 2022 May 08.. View in PubMed

Breast Trauma: A Decade of Surgical Interventions And Outcomes From us Trauma Centers Am Surg. 2022 Apr 27; 31348221096580. . View in PubMed

The impact of coronavirus 2019 on trauma Curr Opin Anaesthesiol. 2022 Apr 01; 35(2):154-159. . View in PubMed

Erratum to "Prehospital Narrow Pulse Pressure Predicts Need for Resuscitative Thoracotomy and Emergent Intervention after Trauma" [Journal of Surgical Research 268 (2021) 284-290] J Surg Res. 2022 Feb; 270:1. . View in PubMed

Penetrating injuries to the vertebral artery: interventions and outcomes from US Trauma Centers Eur J Trauma Emerg Surg. 2022 Feb; 48(1):481-488. . View in PubMed

Effects of the COVID-19 pandemic on pediatric trauma in Southern California Pediatr Surg Int. 2022 Feb; 38(2):307-315. . View in PubMed

Urgent Breast-Related Consults Seen by Acute Care Surgery at a Safety Net Hospital Am Surg. 2022 Jan 03; 31348211068011. . View in PubMed

Decreased hospital length of stay and intensive care unit admissions for non-COVID blunt trauma patients during the COVID-19 pandemic Am J Surg. 2022 07; 224(1 Pt A):90-95. . View in PubMed

Blunt Trauma Massive Transfusion (B-MaT) Score: A Novel Scoring Tool J Surg Res. 2022 02; 270:321-326. . View in PubMed

Gunshot wounds sustained during legal intervention versus those inflicted by civilians: A comparative analysis J Trauma Acute Care Surg. 2022 02 01; 92(2):436-441. . View in PubMed

Prehospital end-tidal carbon dioxide is predictive of death and massive transfusion in injured patients: An Eastern Association for Surgery of Trauma multicenter trial J Trauma Acute Care Surg. 2022 02 01; 92(2):355-361. . View in PubMed

Resuscitative Endovascular Balloon Occlusion of the Aorta in Penetrating Trauma J Am Coll Surg. 2022 05 01; 234(5):872-880. . View in PubMed

Management of Complicated Appendicitis During Pregnancy in the US JAMA Netw Open. 2022 04 01; 5(4):e227555. . View in PubMed

Derivation and Validation of a Score Using Prehospital Data to Identify Adults With Trauma Requiring Early Laparotomy JAMA Netw Open. 2022 01 04; 5(1):e2145860. . View in PubMed

Hypoglycemia in a Surgical Intensive Care Unit Am Surg. 2021 Dec; 87(10):1580-1583. . View in PubMed

Prehospital Variables Alone Can Predict Mortality After Blunt Trauma: A Novel Scoring Tool Am Surg. 2021 Dec; 87(10):1638-1643. . View in PubMed

Association of Body Mass Index on Injuries and Outcomes After Ground-Level Falls Am Surg. 2021 Dec; 87(10):1584-1588. . View in PubMed

Non-lethal weapon: Injury patterns and imaging correlates for firearm alternatives Clin Imaging. 2021 Nov; 79:165-172. . View in PubMed

The impact of delayed time to first CT head in traumatic brain injury Eur J Trauma Emerg Surg. 2021 Oct; 47(5):1511-1516. . View in PubMed

COVID-19 in trauma: a propensity-matched analysis of COVID and non-COVID trauma patients Eur J Trauma Emerg Surg. 2021 Oct; 47(5):1335-1342. . View in PubMed

Longer Prehospital Time Decreases Reliability of Vital Signs in the Field: A Dual Center Study Am Surg. 2021 Jun; 87(6):943-948. . View in PubMed

The impact of delayed time to first CT head on functional outcomes after blunt head trauma with moderately depressed GCS Eur J Trauma Emerg Surg. 2021 May 14. . View in PubMed

Intra-Abdominal Hemorrhage Control: The Need for Routine Four-Quadrant Packing Explored World J Surg. 2021 Apr; 45(4):1014-1020. . View in PubMed

Surviving Nonsurvivable Injuries: Patients Who Elude the 'Lethal' Abbreviated Injury Scale Score of Six J Surg Res. 2021 12; 268:616-622. . View in PubMed

Prehospital Narrow Pulse Pressure Predicts Need for Resuscitative Thoracotomy and Emergent Intervention After Trauma J Surg Res. 2021 12; 268:284-290. . View in PubMed

The coronavirus disease 2019 (COVID-19) stay-at-home order's unequal effects on trauma volume by insurance status in Southern California Surgery. 2021 09; 170(3):962-968. . View in PubMed

Hangings: Lessons Learned from the Coroner's Office J Surg Res. 2021 08; 264:158-162. . View in PubMed

Association Between Trimester and Outcomes after Cholecystectomy During PregnancyJ Am Coll Surg. 2021 07; 233(1):29-37. e1. . View in PubMed

Practical assessment of different saw types for field amputation: A cadaver-based study Am J Emerg Med. 2021 07; 45:11-16. . View in PubMed

Selective Nonoperative Management of Abdominal Shotgun Wounds J Surg Res. 2021 03; 259:79-85. . View in PubMed

J Surg Res. 2021 02; 258:272-277. . View in PubMed

Impact of obesity on outcomes after abdominal gunshot injury J Trauma Acute Care Surg. 2021 04 01; 90(4):680-684. . View in PubMed

Injury and treatment patterns of ballistic pelvic fractures by anatomic location Eur J Orthop Surg Traumatol. 2021 Jan; 31(1):111-119. . View in PubMed

Retained bullet fragments after nonfatal gunshot wounds: epidemiology and outcomes J Trauma Acute Care Surg. 2021 06 01; 90(6):973-979. . View in PubMed

Contemporary utility of diagnostic peritoneal aspiration in trauma J Trauma Acute Care Surg. 2021 11 01; 91(5):814-819. . View in PubMed

Drug and alcohol positivity of traumatically injured patients related to COVID-19 stay-at-home orders Am J Drug Alcohol Abuse. 2021 09 03; 47(5):605-611. . View in PubMed

Changes in traumatic mechanisms of injury in Southern California related to COVID-19: Penetrating trauma as a second pandemic J Trauma Acute Care Surg. 2021 04 01; 90(4):714-721. . View in PubMed

The diagnostic dilemma of shotgun injuries Eur J Trauma Emerg Surg. 2020 Dec; 46(6):1351-1356. . View in PubMed

Comparison of trauma resuscitation practices by critical care anesthesiologists and non-critical care anesthesiologists J Clin Anesth. 2020 Oct; 65:109890. . View in PubMed

Complications Following Brachial Arterial Catheterization in the Surgical Intensive Care Unit Am Surg. 2020 Oct; 86(10):1260-1263. . View in PubMed

Prehospital Vital Signs Accurately Predict Initial Emergency Department Vital Signs Prehosp Disaster Med. 2020 Jun; 35(3):254-259. . View in PubMed

Frostbite injuries: independent predictors of outcomes Turk J Surg. 2020 Jun; 36(2):218-223. . View in PubMed

Shotgun Wounds: Nationwide Trends in Epidemiology, Injury Patterns, and Outcomes from US Trauma Centers J Emerg Med. 2020 May; 58(5):719-724. . View in PubMed

Concomitant bladder and rectal injuries: Results from the American Association for the Surgery of Trauma Multicenter Rectal Injury Study Group J Trauma Acute Care Surg. 2020 Feb; 88(2):286-291. . View in PubMed

Near-Hanging Injuries: Understanding Outcomes Among the Critically Ill Chest. 2020 12; 158(6):2243-2244. . View in PubMed

Fluid Resuscitation and Vasopressors in Septic Shock: The Importance of Filling the Tank While Squeezing the Pipes Crit Care Med. 2020 10; 48(10):1533-1535. . View in PubMed

The Impact of Seat Belt Use in Pregnancy on Injuries and Outcomes After Motor Vehicle Collisions J Surg Res. 2020 10; 254:96-101. . View in PubMed

Radiologic predictors of in-hospital mortality after traumatic craniocervical dissociation J Trauma Acute Care Surg. 2020 09; 89(3):565-569. . View in PubMed

Contemporary Trends and Outcomes of Blunt Traumatic Colon Injuries Requiring Resection J Surg Res. 2020 03; 247:251-257. . View in PubMed

Nationwide trends in the use of subtotal cholecystectomy for acute cholecystitis Surgery. 2020 03; 167(3):569-574. . View in PubMed

Rectal Injury After Foreign Body Insertion: Secondary Analysis From the AAST Contemporary Management of Rectal Injuries Study Group J Surg Res. 2020 03; 247:541-546. . View in PubMed

Trauma Team Activation at a Level I Trauma Center in Southern California: Time of Day Matters Am Surg. 2019 Oct 01; 85(10):1142-1145. . View in PubMed

Youth and Young Adult Victims of Interpersonal Violence at LA County + USC Medical Center: A Review of Epidemiology and Recidivism Am Surg. 2019 Oct 01; 85(10):1166-1170. . View in PubMed

Gunshot wounds to the liver: No longer a mandatory operation J Trauma Acute Care Surg. 2019 Aug; 87(2):350-355. . View in PubMed

Old Age With a Traumatic Mechanism of Injury Should Be a Trauma Team Activation Criterion J Emerg Med. 2019 Aug; 57(2):151-155. . View in PubMed

First Measurement of Charm Production in its Fixed-Target Configuration at the LHC Phys Rev Lett. 2019 Apr 05; 122(13):132002. . View in PubMed

Phys Rev Lett. 2019 Jan 11; 122(1):012001. . View in PubMed

Measurement of the Charm-Mixing Parameter y_{CP} Phys Rev Lett. 2019 Jan 11; 122(1):011802. . View in PubMed

Selective nonoperative management of renal gunshot wounds J Trauma Acute Care Surg. 2019 12; 87(6):1301-1307. . View in PubMed

World J Surg. 2019 11; 43(11):2797-2803. . View in PubMed

Undertriaged trauma patients: Who are we missing? J Trauma Acute Care Surg. 2019 10; 87(4):865-869.. View in PubMed

Current Burden of Gunshot Wound Injuries at Two Los Angeles County Level I Trauma Centers J Am Coll Surg. 2019 08; 229(2):141-149. . View in PubMed

Near hangings: Epidemiology, injuries, and investigations J Trauma Acute Care Surg. 2019 03; 86(3):454-457. . View in PubMed

Nosocomial Pneumonia in the ICU: Still More Questions Than Answers Crit Care Med. 2019 03; 47(3):472-473. . View in PubMed

Falls in the Bathroom: A Mechanism of Injury for All Ages J Surg Res. 2019 02; 234:283-286. . View in PubMed

Intraoperative Consultations to Acute Care Surgery at a Level I Trauma Center Am Surg. 2019 Jan 01; 85(1):82-85. . View in PubMed

Measurement of Antiproton Production in p-He Collisions at sqrt[s_{NN}]=110? GeV. Phys Rev Lett. 2018 Nov 30; 121(22):222001.. View in PubMed

First Observation of the Doubly Charmed Baryon Decay? _{c}^{+}p^{+}. Phys Rev Lett. 2018 Oct 19; 121(16):162002.. View in PubMed

Calculated Decisions: Focused Assessment With Sonography for Trauma (FAST) Emerg Med Pract 2018 Sep 01; 18(Suppl 3):1-3. . View in PubMed

Phys Rev Lett. 2018 Aug 31; 121(9):091801. . View in PubMed

Measurement of the O_{c}^{0} Baryon Lifetime Phys Rev Lett. 2018 Aug 31; 121(9):092003. . View in PubMed

Phys Rev Lett. 2018 Aug 17; 121(7):072002. . View in PubMed

Measurement of the Lifetime of the Doubly Charmed Baryon? _{cc}^{++}. Phys Rev Lett. 2018 Aug 03; 121(5):052002.. View in PubMed

Extremity compartment syndrome Curr Probl Surg. 2018 Jul; 55(7):256-273. . View in PubMed

Phys Rev Lett. 2018 Jun 29; 120(26):261801. . View in PubMed

Evidence for the Rare Decay S^{+}? pµ^{+}µ^{-}. Phys Rev Lett. 2018 Jun 01; 120(22):221803.. View in PubMed

Phys Rev Lett. 2018 Apr 27; 120(17):171802. . View in PubMed

Measurement of the Ratio of Branching Fractions B(B_{c}^{+}? _{µ}). Phys Rev Lett. 2018 Mar 23; 120(12):121801.. View in PubMed

Search for Dark Photons Produced in 13 TeV pp Collisions Phys Rev Lett. 2018 Feb 09; 120(6):061801. . View in PubMed

Critical Decisions in the Management of Thoracic Trauma Emerg Med Clin North Am. 2018 Feb; 36(1):135-147. . View in PubMed

Traumatic rectal injuries: Is the combination of computed tomography and rigid proctoscopy sufficient? J Trauma Acute Care Surg. 2018 12; 85(6):1033-1037.. View in PubMed

Detection of traumatic pancreatic duct disruption in the modern era Am J Surg. 2018 08; 216(2):299-303. . View in PubMed

Independent predictors of survival after traumatic atlanto-occipital dissociation J Trauma Acute Care Surg. 2018 08; 85(2):375-379. . View in PubMed

The combined utility of extended focused assessment with sonography for trauma and chest x-ray in blunt thoracic trauma J Trauma Acute Care Surg. 2018 07; 85(1):113-117. . View in PubMed

Management of cervical tracheoesophageal injuries: A 2018 EAST Master Class Video Presentation J Trauma Acute Care Surg. 2018 07; 85(1):220-223. . View in PubMed

The contemporary timing of trauma deaths J Trauma Acute Care Surg. 2018 06; 84(6):893-899. . View in PubMed

Effect of door-to-angioembolization time on mortality in pelvic fracture: Every hour of delay counts J Trauma Acute Care Surg. 2018 05; 84(5):685-692. . View in PubMed

Contemporary management of rectal injuries at Level I trauma centers: The results of an American Association for the Surgery of Trauma multi-institutional study J Trauma Acute Care Surg. 2018 02; 84(2):225-233. . View in PubMed

Spleen-preserving distal pancreatectomy in trauma J Trauma Acute Care Surg. 2018 01; 84(1):118-122. . View in PubMed

Studies of the resonance structure in D0? K±p±p±p± decays. Eur Phys J C Part Fields. 2018; 78(6):443.. View in PubMed

Search for lepton-flavour-violating decays of Higgs-like bosons Eur Phys J C Part Fields. 2018; 78(12):1008. . View in PubMed

Eur Phys J C Part Fields. 2018; 78(12):1019. . View in PubMed

First Observation of the Rare Purely Baryonic Decay B^{0}? pp[over ¯]. Phys Rev Lett. 2017 Dec 08; 119(23):232001.. View in PubMed

Phys Rev Lett. 2017 Nov 03; 119(18):181807. . View in PubMed

Observation of D^{0} Meson Decays to p^{+}p^{-}µ^{+}µ^{-} and K^{+}K^{-}µ^{+}µ^{-} Final States Phys Rev Lett. 2017 Nov 03; 119(18):181805. . View in PubMed

Delta Shock Index in the Emergency Department Predicts Mortality and Need for Blood Transfusion in Trauma Patients Am Surg. 2017 Oct 01; 83(10):1059-1062. . View in PubMed

Observation of the Doubly Charmed Baryon? _{cc}^{++}. Phys Rev Lett. 2017 Sep 15; 119(11):112001.. View in PubMed

Measurement of B_{s}^{0} and D_{s}^{-} Meson Lifetimes Phys Rev Lett. 2017 Sep 08; 119(10):101801. . View in PubMed

Observation of the Decays? _{c2}pK^{-}. Phys Rev Lett. 2017 Aug 11; 119(6):062001.. View in PubMed

First Observation of a Baryonic B_{s}^{0} Decay Phys Rev Lett. 2017 Jul 28; 119(4):041802. . View in PubMed

Phys Rev Lett. 2017 Jun 30; 118(26):261803. . View in PubMed

Search for the Decays B_{s}^{0}? t^{+}t^{-}. Phys Rev Lett. 2017 Jun 23; 118(25):251802.. View in PubMed

Phys Rev Lett. 2017 May 12; 118(19):192001. . View in PubMed

Phys Rev Lett. 2017 May 12; 118(19):191801. . View in PubMed

Observation of Five New Narrow O_{c}^{0} States Decaying to? _{c}^{+}K^{-}. Phys Rev Lett. 2017 May 05; 118(18):182001.. View in PubMed

Phys Rev Lett. 2017 Mar 17; 118(11):111803. . View in PubMed

Observation of the Annihilation Decay Mode B^{0}? K^{+}K^{-}. Phys Rev Lett. 2017 Feb 24; 118(8):081801.. View in PubMed

Observation of the Decay? pK^{-}K^{-}. Phys Rev Lett. 2017 Feb 17; 118(7):071801.. View in PubMed

Measurement of the b-Quark Production Cross Section in 7 and 13 TeV pp Collisions Phys Rev Lett. 2017 Feb 03; 118(5):052002. . View in PubMed

First Experimental Study of Photon Polarization in Radiative B_{s}^{0} Decays Phys Rev Lett. 2017 Jan 13; 118(2):021801. . View in PubMed

Observation of J/? K^{+} Decays. Phys Rev Lett. 2017 Jan 13; 118(2):022003.. View in PubMed

Injuries sustained during contact with law enforcement: An analysis from US trauma centers J Trauma Acute Care Surg. 2017 12; 83(6):1124-1128. . View in PubMed

Defining the gastroesophageal junction in trauma: Epidemiology and management of a challenging injury J Trauma Acute Care Surg. 2017 11; 83(5):798-802. . View in PubMed

New algorithms for identifying the flavour of [Formula: see text] mesons using pions and protons Eur Phys J C Part Fields. 2017; 77(4):238. . View in PubMed

Study of charmonium production in b -hadron decays and first evidence for the decay Bs0? . Eur Phys J C Part Fields. 2017; 77(9):609.. View in PubMed

Improved limit on the branching fraction of the rare decay KS0? µ+µ-. Eur Phys J C Part Fields. 2017; 77(10):678.. View in PubMed

Updated search for long-lived particles decaying to jet pairs Eur Phys J C Part Fields. 2017; 77(12):812. . View in PubMed

Measurement of the phase difference between short- and long-distance amplitudes in the [Formula: see text] decay Eur Phys J C Part Fields. 2017; 77(3):161. . View in PubMed

Search for massive long-lived particles decaying semileptonically in the LHCb detector Eur Phys J C Part Fields. 2017; 77(4):224. . View in PubMed

Observation of [Formula: see text] and [Formula: see text] decays Eur Phys J C Part Fields. 2017; 77(2):72. . View in PubMed

Pneumonia in Trauma Patients Curr Trauma Rep. 2017; 3(4):308-314. . View in PubMed

Phys Rev Lett. 2016 Dec 23; 117(26):261801. . View in PubMed

Search for Structure in the B_{s}^{0}p^{±} Invariant Mass Spectrum Phys Rev Lett. 2016 Oct 07; 117(15):152003. . View in PubMed

The diagnostic yield of commonly used investigations in pelvic gunshot wounds J Trauma Acute Care Surg. 2016 10; 81(4):692-8. . View in PubMed

Complex autoerotic death with full body wrapping in a plastic body bag J Forensic Sci. 2007 Jul; 52(4):954-6. . View in PubMed

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