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Dive into the research topics where David R. Rosen is active.

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Featured researches published by David R. Rosen.


Colorectal Disease | 2016

Definitive seton management for transsphincteric fistula-in-ano: harm or charm?

David R. Rosen; Andreas M. Kaiser

The treatment of transsphincteric anal fistula requires a balance between eradication of the disease and preservation of faecal control. A cutting seton is an old tool that is now out of vogue for many surgeons. We hypothesized that the concept remains reliable and safe with results that exceed those reported for many of the more recently described methods.


Journal of The American College of Surgeons | 2017

Outpatient Laparoscopic Appendectomy: Feasible in a Public County Hospital?

David R. Rosen; Kenji Inaba; Paul J. Oh; Adam Gutierrez; Aaron Strumwasser; Subarna Biswas; Melody Cala; Glenn T. Ault

BACKGROUND Outpatient laparoscopic appendectomy is being used increasingly as a treatment option for acute, uncomplicated appendicitis. This was a prospective validation study in a large, urban, public safety-net hospital. STUDY DESIGN From 2014 to 2016, all patients undergoing laparoscopic appendectomy for acute, uncomplicated appendicitis were enrolled in a prospective observational trial. Standard baseline perioperative practice (control group) was documented for 1 year. An outpatient appendectomy protocol was then introduced. Inclusion criteria required intraoperative confirmation of uncomplicated appendicitis and strict discharge criteria, including physician assessment before discharge. Data collection then continued for 1 year (outpatient group). The outcomes measures examined included complications, length of stay, nursing transitions, emergency department visits, readmissions, and patient satisfaction. RESULTS The study enrolled 351 patients (178 control, 173 outpatient). Of the 173 candidates for outpatient appendectomy, 113 went home. Reasons for admission included surgeon discretion due to intraoperative findings/medical comorbidities and lack of transportation home. The outpatient group had shorter operative time (69 vs 83 minutes; p < 0.001), longer time in recovery (242 vs 141 minutes; p < 0.001), fewer nursing transitions (4 vs 5; p < 0.001), and shorter postoperative length of stay (9 vs 19 hours; p < 0.001). There was no difference in complications, emergency department visits, or readmissions. In the outpatient group, none of the patients sent home from recovery had postoperative complications or required readmission. Satisfaction surveys revealed no change in satisfaction with either protocol. CONCLUSIONS Outpatient appendectomy is safe in a public hospital and results in shorter hospital length of stay and decreased healthcare costs. Strict criteria for discharge are important to identify patients who should be admitted for observation.


Journal of Vascular Surgery | 2014

Outcomes with arteriovenous fistulas in a pediatric population

Sarah M. Wartman; David R. Rosen; Karen Woo; Wayne S. Gradman; Fred A. Weaver; Vincent L. Rowe


Journal of Trauma-injury Infection and Critical Care | 2017

Surgical outcomes after trauma pneumonectomy: Revisited

Kazuhide Matsushima; Alberto Aiolfi; Caroline Park; David R. Rosen; Aaron Strumwasser; Elizabeth Benjamin; Kenji Inaba; Demetrios Demetriades


American Surgeon | 2016

Factors Associated with a Short ( 10 Days) Length of Stay after Colectomy: A Multivariate Analysis of over 400 Patients.

Kyle G. Cologne; Byers S; David R. Rosen; Grace S. Hwang; Adrian E. Ortega; Glenn T. Ault; Lee Sw


American Journal of Surgery | 2017

Operative management of diverticulitis in a tertiary care center

David R. Rosen; Grace S. Hwang; Glenn T. Ault; Adrian E. Ortega; Kyle G. Cologne


Journal of The American College of Surgeons | 2017

Computed Tomography in Hemodynamically Abnormal Thoracoabdominal Trauma Safely Enhances Surgical Triage

John Carney; Aaron Strumwasser; Chase Luther; Daniel Grabo; Kazuhide Matsushima; Damon Clark; David R. Rosen; Kenji Inaba; Demetrios Demetriades; Lydia Lam


Journal of The American College of Surgeons | 2017

Selective CT Imaging Is Superior to Liberal CT Imaging in the Hemodynamically Normal Pediatric Blunt Trauma Patient

Emily Pott; Aaron Strumwasser; Chase Luther; Daniel Grabo; Kazuhide Matsushima; Damon Clark; David R. Rosen; Kenji Inaba; Elizabeth Benjamin; Demetrios Demetriades


Journal of The American College of Surgeons | 2016

Slow Neostigmine Infusions for Colonic Pseudoobstruction (Ogilvie Syndrome)

Andreas M. Kaiser; Jason B. Weiss; Megan Linnebur; Michael Parker; Timothy F. Feldmann; David R. Rosen


Journal of Surgical Research | 2016

Long-term follow-up of Fournier’s Gangrene in a tertiary care center

David R. Rosen; Mitchell E. Brown; Kyle G. Cologne; Glenn T. Ault; Aaron Strumwasser

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Aaron Strumwasser

University of Southern California

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Glenn T. Ault

University of Southern California

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Kenji Inaba

University of Southern California

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Kyle G. Cologne

University of Southern California

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Adrian E. Ortega

University of Southern California

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Demetrios Demetriades

University of Southern California

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Kazuhide Matsushima

University of Southern California

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Andreas M. Kaiser

University of Southern California

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Damon Clark

University of Southern California

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Daniel Grabo

University of Southern California

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