Full Text Journal Articles by
Author Patrick Greiffenstein

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Mass shootings in the United States: Results from a five-year demographic analysis.

Alexander C Cavalea, Alexandra Tedesco, Jacob Leonard, John P Hunt, Jonathan Schoen, Alison A Smith, Patrick Greiffenstein, Alan B Marr, Lance E Stuke,

Injury (Injury)
[2022, :]

Cited: 0 times

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How Did the COVID-19 Pandemic Affect Trauma Volume at an Urban Level I Trauma Center?

Alexandra Hahn, Tommy Brown, Brett Chapman, Alan Marr, Lance Stuke, Patrick Greiffenstein, Jonathan Schoen, John P Hunt, Alison Smith,

<h4>Introduction</h4>The COVID-19 pandemic changed the face of health care worldwide. While the impacts from this catastrophe are still being measured, it is important to understand how this pandemic impacted existing health care systems. As such, the objective of this study was to quantify its effects on trauma volume at an ... Read more >>

Am Surg (The American surgeon)
[2022, :31348211054075]

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Does Time to Pelvic Fixation Influence Outcomes in Trauma Patients?

Nicholas A Taylor, Alison A Smith, Alan Marr, Lance Stuke, Patrick Greiffenstein, Jonathan Schoen, Tommy Brown, Brett Chapman, John P Hunt,

<h4>Background</h4>Pelvic fractures cause significant morbidity in the trauma population. Many factors influence time to fracture fixation. No previous study has determined the optimal time window for pelvic fixation.<h4>Methods</h4>A retrospective review of trauma patients with pelvic fractures from 2016 to 2020 was performed. Patients were stratified into EARLY and LATE groups, ... Read more >>

Am Surg (The American surgeon)
[2021, :31348211056266]

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Dehydrated Human Amniotic-Chorionic Membrane Reduces Incisional Hernia Formation in an Animal Model.

Aran Yoo, Celia Short, Mandi J Lopez, Catherine Takawira, Kazi N Islam, Patrick Greiffenstein, Ian Hodgdon, Denise M Danos, Frank H Lau,

<h4>Background</h4>Currently there are no standard of care treatment strategies for IH prevention (IHP). Dehydrated human amnion-chorion (dHACM) is a healing adjunct that elutes growth factors including several that have reduced IH in animal models. We therefore performed a double-blinded, prospective randomized controlled trial (RCT) to test the hypothesis that dHACM ... Read more >>

J Surg Res (The Journal of surgical research)
[2022, 270:477-485]

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Compression of the Right Atrium and Inferior Vena Cava from an Extrahepatic Biloma Following Liver Trauma.

Brandon T Thrash, Alison A Smith, Alexandra H Fairchild, Bahri Ustunsoz, Tommy A Brown, Brett M Chapman, John P Hunt, Alan B Marr, Lance E Stuke, Jonathan E Schoen, Patrick P Greiffenstein,

A 26-year-old male presented to a Level 1 trauma center following a motorcycle crash. Workup of his injuries demonstrated a grade 5 liver laceration with active extravasation, grade 5 kidney laceration, right apical pneumothorax, and a sternal fracture. The patient underwent hepatic artery embolization with interventional radiology (IR) followed by ... Read more >>

Am Surg (The American surgeon)
[2021, :31348211034757]

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Intra-abdominal hypertension and hypoxic respiratory failure together predict adverse outcome - A sub-analysis of a prospective cohort.

Adrian Regli, Annika Reintam Blaser, Bart De Keulenaer, Joel Starkopf, Edward Kimball, Manu L N G Malbrain, Peter Vernon Van Heerden, Wendy A Davis, , Annamaria Palermo, Wojciech Dabrowski, Dorota Siwicka-Gieroba, Malgorzata Barud, Ioana Grigoras, Anca Irina Ristescu, Adina Blejusca, Kadri Tamme, Liivi Maddison, Ülle Kirsimägi, Andrey Litvin, Anastasiya Kazlova, Aliaksandr Filatau, Francisco Pracca, Gustavo Sosa, Maicol Dos Santos, Mikhail Kirov, Alexey Smetkin, Yana Ilyina, Daniel Gilsdorf, Carlos A Ordoñez, Yaset Caicedo, Patrick Greiffenstein, Margaret M Morgan, Zsolt Bodnar, Edit Tidrenczel, Gina Oliveira, Ana Albuquerque, Bruno M Pereira,

<h4>Purpose</h4>To assess whether the combination of intra-abdominal hypertension (IAH, intra-abdominal pressure ≥ 12 mmHg) and hypoxic respiratory failure (HRF, PaO2/FiO2 ratio < 300 mmHg) in patients receiving invasive ventilation is an independent risk factor for 90- and 28-day mortality as well as ICU- and ventilation-free days.<h4>Methods</h4>Mechanically ventilated patients who had ... Read more >>

J Crit Care (Journal of critical care)
[2021, 64:165-172]

Cited: 1 time

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Predictors of Inappropriate Helicopter Transport.

Christopher Brown, Wajeeh Irfan, Jonathan E Schoen, Alan B Marr, Lance E Stuke, Alexander C Cavalea, Willard W Mosier, Camille L Rogers, Patrick P Greiffenstein, Margaret M Moore, John P Hunt,

<h4>Background</h4>Helicopter transport (HT) is an efficient, but costly, means for injured patients to receive life-saving, definitive trauma care. Identifying the characteristics of inappropriate HT presents an opportunity to improve the utilization of this finite medical resource.<h4>Methods</h4>Trauma registry records of all HT for a 3-year period (2016-2018) to an urban Level ... Read more >>

Am Surg (The American surgeon)
[2021, 87(2):248-252]

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The Use of Autologous Fenestrated Cutis Grafts in Hernia Repair : Surgical Outcomes and Cost Analysis of 97 Consecutive Patients.

Ian Hodgdon, Michael Cook, Aran Yoo, Marco Rajo, Danielle Dooley, Adam Haydel, Shireen Dogar, Patrick Greiffenstein, John Morrison, Frank Lau, John Paige,

Am Surg (The American surgeon)
[2020, 86(7):819-825]

Cited: 0 times

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Vitamin D insufficiency is prevalent in severe COVID-19

Frank Lau, Rinku Majumder, Radbeh Torabi, Fouad Saeg, Ryan Hoffman, Jeffrey Cirillo, Patrick Greiffenstein,

<h4>Background</h4> COVID-19 is a major pandemic that has killed more than 196,000 people. The COVID-19 disease course is strikingly divergent. Approximately 80-85% of patients experience mild or no symptoms, while the remainder develop severe disease. The mechanisms underlying these divergent outcomes are unclear. Emerging health disparities data regarding African American ... Read more >>

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Cited: 2 times

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Stop the Bleed Training: Rescuer Skills, Knowledge, and Attitudes of Hemorrhage Control Techniques.

Rebecca Schroll, Alison Smith, Morgan S Martin, Tyler Zeoli, Marcus Hoof, Juan Duchesne, Patrick Greiffenstein, Jennifer Avegno,

<h4>Background</h4>Bystanders play a significant role in the immediate management of life-threatening hemorrhage. The Stop the Bleed (STB) program was designed to train lay rescuers (LRs) to identify and control life-threatening bleeding. The aim of this study was to evaluate the efficacy of STB training for rescuers from different backgrounds. We ... Read more >>

J Surg Res (The Journal of surgical research)
[2020, 245:636-642]

Cited: 3 times

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Characteristics of hardware failure in patients undergoing surgical stabilization of rib fractures: A Chest Wall Injury Society multicenter study.

Babak Sarani, Rebecca Allen, Fredric M Pieracci, Andrew R Doben, Evert Eriksson, Zachary M Bauman, Puneet Gupta, Greg Semon, Patrick Greiffenstein, Alistair J Chapman, Brian D Kim, Lawrence Lottenberg, Scott Gardner, Silvana Marasco, Tom White,

<h4>Background</h4>Surgical stabilization of rib fractures (SSRF) is increasingly used for severe rib fractures/flail chest. There are no reports discussing mechanisms of failure of implanted hardware, its clinical presentation, or consequences. The purpose of this study was to evaluate the incidence, presenting signs, and clinical sequela of hardware failure after SSRF.<h4>Methods</h4>A ... Read more >>

J Trauma Acute Care Surg (The journal of trauma and acute care surgery)
[2019, 87(6):1277-1281]

Cited: 5 times

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Insurance Status as a Predictor of Hospital Length of Stay in Trauma Patients.

Jessica K Friedman, David Swift, Alison A Smith, John Hunt, Patrick Greiffenstein, Juan Duchesne, Rebecca Schroll,

Am Surg (The American surgeon)
[2019, 85(1):e50-e52]

Cited: 0 times

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Treatment of symptomatic intercostal heterotopic ossification after surgical stabilization of rib fractures: report of two cases and review of the literature.

Patrick Greiffenstein, Emily Adams, Alexis Scheuermann, Camille Rogers,

J Thorac Dis (Journal of thoracic disease)
[2019, 11(Suppl 8):S1106-S1112]

Cited: 1 time

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Incidence, Risk Factors, and Outcomes of Intra-Abdominal Hypertension in Critically Ill Patients-A Prospective Multicenter Study (IROI Study).

Annika Reintam Blaser, Adrian Regli, Bart De Keulenaer, Edward J Kimball, Liis Starkopf, Wendy A Davis, Patrick Greiffenstein, Joel Starkopf, ,

<h4>Objectives</h4>To identify the prevalence, risk factors, and outcomes of intra-abdominal hypertension in a mixed multicenter ICU population.<h4>Design</h4>Prospective observational study.<h4>Setting</h4>Fifteen ICUs worldwide.<h4>Patients</h4>Consecutive adult ICU patients with a bladder catheter.<h4>Interventions</h4>None.<h4>Measurements and main results</h4>Four hundred ninety-one patients were included. Intra-abdominal pressure was measured a minimum of every 8 hours. Subjects with a mean ... Read more >>

Crit Care Med (Critical care medicine)
[2019, 47(4):535-542]

Cited: 20 times

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Effects of a fragmenting handgun bullet: Considerations for trauma care providers.

Lynn Hakki, Alison Smith, Jonathan Babin, John Hunt, Juan Duchesne, Patrick Greiffenstein,

INTRODUCTION:Expanding or fragmenting bullets have been known to cause extensive injuries since they became available in the late 19th century. Although these bullets are now banned from international warfare, their use by civilians and law enforcement is still legal in the US. In this case report, we describe the complex ... Read more >>

Injury (Injury)
[2019, 50(5):1143-1146]

Cited: 1 time

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Efficacy of Medical Students as Stop the Bleed Participants and Instructors.

Rebecca Schroll, Alison Smith, Tyler Zeoli, Marcus Hoof, Patrick Greiffenstein, Margaret Moore, Patrick McGrew, Juan Duchesne, Jennifer Avegno,

<h4>Objective</h4>The Stop the Bleed (STB) program trains lay rescuers to identify and control life-threatening bleeding. Recently, medical students were allowed to become coinstructors. The aim of this study was to assess the efficacy of medical student course participation as both learners and instructors. No previous study to date has provided ... Read more >>

J Surg Educ (Journal of surgical education)
[2019, 76(4):975-981]

Cited: 1 time

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Implications of the Trauma Quality Improvement Project inclusion of nonsurvivable injuries in performance benchmarking.

Jiselle Bock Heaney, Rebecca Schroll, Jennifer Turney, Lance Stuke, Alan B Marr, Patrick Greiffenstein, Rosemarie Robledo, Amanda Theriot, Juan Duchesne, John Hunt,

<h4>Background</h4>The Trauma Quality Improvement Project (TQIP) uses an injury prediction model for performance benchmarking. We hypothesize that at a Level I high-volume penetrating trauma center, performance outcomes will be biased due to inclusion of patients with nonsurvivable injuries.<h4>Methods</h4>Retrospective chart review was conducted for all patients included in the institutional TQIP ... Read more >>

J Trauma Acute Care Surg (The journal of trauma and acute care surgery)
[2017, 83(4):617-621]

Cited: 1 time

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Association Between Compliance with Triage Directions from an Organized State Trauma System and Trauma Outcomes.

Benjamin Martinez, John T Owings, Christopher Hector, Paige Hargrove, Shoichiro Tanaka, Margaret Moore, Patrick Greiffenstein, Joseph Giaimo, Shahrzad Talebinejad, John P Hunt,

<h4>Background</h4>The Louisiana Emergency Response Network (LERN), a statewide trauma system, has a single communication center with real-time data on hospital capacity across the state. With these data, scene information, and a standardized triage protocol, prehospital providers are directed to the most appropriate hospital. The purpose of our study was to ... Read more >>

J Am Coll Surg (Journal of the American College of Surgeons)
[2017, 225(4):508-515]

Cited: 2 times

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Respiratory Complications in Trauma Patients: A Multidisciplinary Approach to Prevention.

Patrick Greiffenstein, Terry L Forrette,

Respir Care (Respiratory care)
[2016, 61(12):1708-1709]

Cited: 0 times

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The Hidden Story of Innovation: Charity Hospital, Angola Prison, and the Challenging of Surgical Dogma.

Patrick Greiffenstein, Paul R Hastings,

The late 1960s was a period of significant upheaval of social, cultural, and scientific norms. The generally accepted notion of mandatory laparotomy for all penetrating abdominal injuries was among those norms being called into question across the country and many advocated expectant management of selected patients presenting with this type ... Read more >>

Am Surg (The American surgeon)
[2017, 83(2):113-118]

Cited: 0 times

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All for knots: evaluating the effectiveness of a proficiency-driven, simulation-based knot tying and suturing curriculum for medical students during their third-year surgery clerkship.

Cianna Pender, Vladimir Kiselov, Qingzhao Yu, Jennifer Mooney, Patrick Greiffenstein, John T Paige,

<h4>Background</h4>We evaluated the effectiveness of implementing a proficiency-driven, simulation-based knot tying and suturing curriculum for medical students during their 3rd-year surgery clerkship.<h4>Methods</h4>Medical students on the 3rd-year surgical clerkship completed a proficiency-driven, simulation-based knot tying and suturing curriculum consisting of 6 tasks. The effectiveness was evaluated by comparing the initial presession ... Read more >>

Am J Surg (American journal of surgery)
[2017, 213(2):362-370]

Cited: 4 times

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Massive bleeding following severe blunt trauma: the first minutes that can change everything.

Martin Lucien Tonglet, Patrick Greiffenstein, Francois Pitance, Stephane Degesves,

The first hour following a major trauma with massive bleeding is certainly the most decisive period in global trauma care. Most of it takes place during the prehospital care. Those prehospital minutes are thus determinant as they can be used to correctly identified patient's clinical condition, initiate organization of the ... Read more >>

Acta Chir Belg (Acta chirurgica Belgica)
[2016, 116(1):11-15]

Cited: 0 times

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Sleep in traumatic brain injury.

James Vermaelen, Patrick Greiffenstein, Bennett P deBoisblanc,

More than one-half million patients are hospitalized annually for traumatic brain injury (TBI). One-quarter demonstrate sleep-disordered breathing, up to 50% experience insomnia, and half have hypersomnia. Sleep disturbances after TBI may result from injury to sleep-regulating brain tissue, nonspecific neurohormonal responses to systemic injury, ICU environmental interference, and medication side ... Read more >>

Crit Care Clin (Critical care clinics)
[2015, 31(3):551-561]

Cited: 4 times

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Drug and alcohol use complicate traumatic peripheral vascular injury.

John Nicholas Melvan, Jennifer Mooney, Gregory J Bagby, John Patrick Hunt, Robert Batson, Patrick Greiffenstein,

<h4>Background</h4>Drug and alcohol use complicate the presentation and management of traumatic injuries. Impaired hemodynamic recovery and host defense in substance users also predispose these patients to worse outcomes after trauma. We hypothesized that substance abuse, particularly when drugs and alcohol are combined, complicates the presentation, management, and patient outcomes following ... Read more >>

J Trauma Acute Care Surg (The journal of trauma and acute care surgery)
[2013, 75(2):258-265]

Cited: 1 time

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Selected anatomists: at the boundary of contemporary ethics.

Dillon Arango, Patrick Greiffenstein, James Patrick O'Leary,

Fascination with the interworkings of the human body has permeated scientific discovery for eons. Materials for dissection proved problematic for anatomists. Andreas Vesalius solved his dilemma by visiting local gallows where criminals had been executed. Eduard Pernkopf has been alleged to have taken some of his materials from victims of ... Read more >>

JAMA Surg (JAMA surgery)
[2013, 148(1):94-98]

Cited: 3 times

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