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Ryan K. Lehmann, DO, FACS, FASMBS

Portrait
Clinical Assistant Professor
Clinical Assistant Professor of Surgery - Gastrointestinal, Minimally invasive and Bariatric Surgery

Contact Information

Primary Office
4627 JCP
200 Hawkins Dr
Iowa City, IA 52242
319-356-7675

Education

BS, Biochemistry, University of Missouri
DO, Kirksville College of Osteopathic Medicine
Internship, General Surgery, Madigan Army Medical Center
Resident, General Surgery, Madigan Army Medical Center

Licensure and Certifications

Diplomate, American Board of Obesity Medicine
Iowa Medical License - Iowa Board of Medicine
Board Certified, General Surgery - American Board of Surgery

Publications

Carroll, R., Fontan, F., Lehmann, R. K., Smith, J. K. & Nau, P. N. (In Press). Laparoscopic Roux-en-Y Gastric Bypass for the management of hiatal hernia and failed fundoplication in patients with obesity. Annals of Laparoscopic and Endoscopic Surgery.

Shim, J. K., Tayim, R. J. & Lehmann, R. K. (2018). Esophageal Reflux Disease Before and After Bariatric Surgery. In The SAGES Manual of Bariatric Surgery. pp. 647-665. Springer. DOI: 10.1007/978-3-319-71282-6_47.

Lesperance, R. N., Lehmann, R. K., Harold, D. M., Beekley, A. C., Sebesta, J. A. & Martin, M. J. (2012). Recombinant factor VIIa is effective at reversing coagulopathy in a lactic acidosis model. The journal of trauma and acute care surgery, 72(1), 123-9. PMID: 22002618.

Lesperance, R., Lehmann, R. K., Lesperance, K., Cronk, D. & Martin, M. (2011). Early postoperative fever and the "routine" fever work-up: results of a prospective study. The Journal of surgical research, 171(1), 245-50. PMID: 20655062.

Lehmann, R. K., Brounts, L. R., Johnson, E. K., Rizzo, J. A. & Steele, S. R. (2011). Does sacrifice of the inferior mesenteric artery or superior rectal artery affect anastomotic leak following sigmoidectomy for diverticulitis? a retrospective review. American journal of surgery, 201(5), 623-7. PMID: 21545911.

Lehmann, R. K., Brounts, L. R., Lesperance, K. E., Eckert, M. J., Lesperance, R. N., Beekley, A. C., Sebesta, J. A. & Martin, M. J. (2011). Hypoxemic versus normoxemic reperfusion in a large animal model of severe ischemia-reperfusion injury. Journal of Surgical Research, 166(2), 194-198. DOI: 10.1016/j.jss.2010.05.052.

Lehmann, R. K., Quan, R. & Singh, N. (2010). Issues in Revascularization of the Ischemic Foot and Ankle War Injury. (Vols. 15). (1), pp. 77-90. Foot and Ankle Clinics. DOI: 10.1016/j.fcl.2009.11.002.

Brounts, L. R., Lesperance, K., Lehmann, R. K., Carter, P., Beekley, A., Martin, M., Rush, R. & Sebesta, J. (2009). Resectional gastric bypass outcomes in active duty soldiers: a retrospective review. Surgery for Obesity and Related Diseases, 5(6), 657-661. DOI: 10.1016/j.soard.2009.05.012.

Lehmann, R. K., Brounts, L., Lesperance, K., Eckert, M., Casey, L., Beekley, A. & Martin, M. (2009). A simplified set of trauma triage criteria to safely reduce overtriage: A prospective study. Archives of Surgery, 144(9), 853-857. DOI: 10.1001/archsurg.2009.153.

Lesperance, K., Martin, M. J., Lehmann, R. K., Brounts, L. & Steele, S. R. (2009). National trends and outcomes for the surgical therapy of ileocolonic Crohn's disease: A population-based analysis of laparoscopic vs. open approaches. Journal of Gastrointestinal Surgery, 13(7), 1251-1259. DOI: 10.1007/s11605-009-0853-3.

Brounts, L. R., Lehmann, R. K., Lesperance, K. E., Brown, T. A. & Steele, S. R. (2009). Improved rates of colorectal cancer screening in an equal access population. American journal of surgery, 197(5), 609-12; discussion 612-3. PMID: 19306971.

Brounts, L. R., Lehmann, R. K., Lesperance, K. E., Brown, T. A. & Steele, S. R. (2009). Improved rates of colorectal cancer screening in an equal access population. American Journal of Surgery, 197(5), 609-613. DOI: 10.1016/j.amjsurg.2008.12.006.

Brounts, L. R., Lehmann, R. K., Causey, M. W., Sebesta, J. A. & Brown, T. A. (2009). Natural course and outcome of cystic lesions in the pancreas. American Journal of Surgery, 197(5), 619-623. DOI: 10.1016/j.amjsurg.2008.12.010.

Lehmann, R. K., Beekley, A., Casey, L., Salim, A. & Martin, M. (2009). The impact of advanced age on trauma triage decisions and outcomes: A statewide analysis. American Journal of Surgery, 197(5), 571-575. DOI: 10.1016/j.amjsurg.2008.12.037.

Lehmann, R. K., Oh, J., Killius, S., Cornell, M., Furay, E. & Martin, M. (2009). Interhospital patient transport by rotary wing aircraft in a combat environment: Risks, adverse events, and process improvement. (Vols. 66). (SUPPL. 4) Journal of Trauma - Injury, Infection and Critical Care. DOI: 10.1097/TA.0b013e31819d9575.

Lehmann, R. K., Arthurs, Z. M., Cuadrado, D. G., Casey, L. E., Beekley, A. C. & Martin, M. J. (2007). Trauma team activation: simplified criteria safely reduces overtriage. American journal of surgery, 193(5), 630-4; discussion 634-5. PMID: 17434371.