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Office
1100 Walnut St
Philadelphia, PA 19107Phone+1 215-955-6750Fax+1 215-923-8222- Is this information wrong?
Education & Training
- Sidney Kimmel Medical College at Thomas Jefferson University/TJUHResidency, Surgery, 1995 - 2000
- Jacobs School of Medicine and Biomedical Sciences at the University at BuffaloClass of 1995
Certifications & Licensure
- CA State Medical License 2000 - Present
- PA State Medical License 1996 - 2024
- American Board of Surgery Surgery
Awards, Honors, & Recognition
- Philadelphia Magazine Castle Connolly, 2011
- CMS Meaningful Use Stage 1 Certification Allscripts Enterprise EHR, Allscripts, 2011-2012
- Fellow (FACS) American College of Surgeons
Clinical Trials
- A Randomized Trial of Two Surgical Techniques for Pancreaticojejunostomy in Patients Undergoing Pancreaticoduodenectomy Start of enrollment: 2006 May 25
- Intraoperative Celiac Plexus Neurolysis for Patients With Operable Pancreatic and Periampullary Cancer Start of enrollment: 2008 Sep 01
- An Evaluation of a New Technique Utilizing a Biologic Glue and Tissue Patch to Seal the Cut Edge of the Pancreas Following Removal of the Tail of the Pancreas Start of enrollment: 2008 Aug 01
Publications & Presentations
PubMed
- Defining risk factors for mortality after emergent hiatal hernia repair in the era of minimally invasive surgery.Micaela L Collins, Shale J Mack, Brian M Till, Gregory L Whitehorn, Christina Tofani, Karen Chojnacki, Tyler Grenda, Nathaniel R Evans 3rd, Olugbenga T Okusanya> ;American Journal of Surgery. 2023 Jun 1
- Cessation of Routine Jejunostomy Tube Placement at Time of Minimally Invasive Ivor Lewis Esophagectomy and Impact on Body Mass Index.Brian M Till, Jenna Mandel, Ece Unal, Luke Juckett, Tyler Grenda, Olugbenga Okusanya, Francesco Palazzo, Karen Chojnacki, Nathaniel R Evans> ;Seminars in Thoracic and Cardiovascular Surgery. 2022 Oct 12
- Crisis management checklist: lessons learned from the SARS-CoV-2 pandemic.Ryan Lamm, Uzma Rahman, Karen Chojnacki> ;Global Surgical Education. 2022 Jan 1
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Journal Articles
- Persistently Elevated Serum Lactate Levels 48 Hours Postoperatively Predict Increased Complications After EsophagectomyMona Taleb, Francesco Palazzo, Karen A Chojnacki, Adam C Berger, Ernest L Rosato, Journal of The American College of Surgeons
Authored Content
- Persistently Elevated Serum Lactate Levels 48 Hours Postoperatively Predict Increased Complications After EsophagectomyOctober 2018
- Comprehensive Multicenter Graduate Surgical Education Initiative Incorporating Entrustable Professional Activities, Continuous Quality Improvement Cycles, and a Web-Based Platform to Enhance Teaching and LearningMarch 2018
- Comprehensive Multicenter Graduate Surgical Education Initiative Incorporating Entrustable Professional Activities, Continuous Quality Improvement Cycles, and a Web-Based Platform to Enhance Teaching and LearningMarch 2018
Professional Memberships
- Member
Hospital Affiliations
- Thomas Jefferson University HospitalsPhiladelphia, Pennsylvania
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