Jesse M. Ehrenfeld, M.D.

Faculty Appointments
Professor of Anesthesiology Professor of Biomedical InformaticsProfessor of Health PolicyProfessor of Surgery
M.P.H., Harvard School of Public Health, Boston, MassachusettsM.D., Medicine, University of Chicago Pritzker School of Medicine, Chicago, IllinoisB.S., Haverford College, Haverford, Pennsylvania
Office Address
1301 Medical Center Drive - Suite 4648 TVC
Nashville, TN 37232
Freundlich RE, Ehrenfeld JM. Anesthesia information management: clinical decision support. Curr Opin Anaesthesiol. 2017 Dec; 30(6): 705-9. PMID: 28938302, DOI: 10.1097/ACO.0000000000000526, ISSN: 1473-6500.

Johnson KB, Ehrenfeld JM. An EPIC Switch: Preparing for an Electronic Health Record Transition at Vanderbilt University Medical Center [editorial]. J Med Syst. 2017 Nov 11/21/2017; 42(1): 6. PMID: 29164347, PII: 10.1007/s10916-017-0865-6, DOI: 10.1007/s10916-017-0865-6, ISSN: 1573-689X.

Cutrer WB, Ehrenfeld JM. Protocolization, Standardization and the Need for Adaptive Expertise in our Medical Systems [editorial]. J Med Syst. 2017 Nov 11/9/2017; 41(12): 200. PMID: 29124469, PII: 10.1007/s10916-017-0852-y, DOI: 10.1007/s10916-017-0852-y, ISSN: 1573-689X.

O'Neal JB, Billings FT, Liu X, Shotwell MS, Liang Y, Shah AS, Ehrenfeld JM, Wanderer JP, Shaw AD. Risk factors for delirium after cardiac surgery: a historical cohort study outlining the influence of cardiopulmonary bypass. Can J Anaesth [print-electronic]. 2017 Nov; 64(11): 1129-37. PMID: 28718100, PMCID: PMC5693689, PII: 10.1007/s12630-017-0938-5, DOI: 10.1007/s12630-017-0938-5, ISSN: 1496-8975.

Taylor SS, Ehrenfeld JM. Electronic Health Records and Preparedness: Lessons from Hurricanes Katrina and Harvey [editorial]. J Med Syst. 2017 Nov; 41(11): 173. PMID: 28929422, PII: 10.1007/s10916-017-0822-4, DOI: 10.1007/s10916-017-0822-4, ISSN: 1573-689X.

Gabriel RA, Ehrenfeld JM, Urman RD. Preoperative Genetic Testing and Personalized Medicine: Changing the Care Paradigm [editorial]. J Med Syst. 2017 Oct 10/17/2017; 41(12): 185. PMID: 29039620, PII: 10.1007/s10916-017-0835-z, DOI: 10.1007/s10916-017-0835-z, ISSN: 1573-689X.

O'Neal JB, Billings FT, Liu X, Shotwell MS, Liang Y, Shah AS, Ehrenfeld JM, Wanderer JP, Shaw AD. Effect of Preoperative Beta-Blocker Use on Outcomes Following Cardiac Surgery. Am. J. Cardiol [print-electronic]. 2017 Oct 10/15/2017; 120(8): 1293-7. PMID: 28826895, PMCID: PMC5675103, PII: S0002-9149(17)31176-1, DOI: 10.1016/j.amjcard.2017.07.012, ISSN: 1879-1913.

Gabriel RA, Burton BN, Tsai MH, Ehrenfeld JM, Dutton RP, Urman RD. After-hour Versus Daytime Shifts in Non-Operating Room Anesthesia Environments: National Distribution of Case Volume, Patient Characteristics, and Procedures. J Med Syst [print-electronic]. 2017 Sep; 41(9): 140. PMID: 28776233, PII: 10.1007/s10916-017-0793-5, DOI: 10.1007/s10916-017-0793-5, ISSN: 1573-689X.

Ehrenfeld JM. WannaCry, Cybersecurity and Health Information Technology: A Time to Act [editorial]. J Med Syst. 2017 Jul; 41(7): 104. PMID: 28540616, PII: 10.1007/s10916-017-0752-1, DOI: 10.1007/s10916-017-0752-1, ISSN: 1573-689X.

Tsai MH, Huynh TT, Breidenstein MW, O'Donnell SE, Ehrenfeld JM, Urman RD. A System-Wide Approach to Physician Efficiency and Utilization Rates for Non-Operating Room Anesthesia Sites. J Med Syst [print-electronic]. 2017 Jul; 41(7): 112. PMID: 28597362, PII: 10.1007/s10916-017-0754-z, DOI: 10.1007/s10916-017-0754-z, ISSN: 1573-689X.

Bulka CM, Ehrenfeld JM. In Reply. Anesthesiology. 2017 Jul; 127(1): 198. PMID: 28632621, PII: 00000542-201707000-00037, DOI: 10.1097/ALN.0000000000001698, ISSN: 1528-1175.

Freundlich RE, Ehrenfeld JM. Quality metrics: hard to develop, hard to validate. Br J Anaesth. 2017 Jul 7/1/2017; 119(1): 10-1. PMID: 28974060, PII: 3897052, DOI: 10.1093/bja/aex084, ISSN: 1471-6771.

Lee LO, Bateman BT, Kheterpal S, Klumpner TT, Housey M, Aziz MF, Hand KW, MacEachern M, Goodier CG, Bernstein J, Bauer ME, Lirk P, Wilczak J, Soto R, Tom S, Cuff G, Biggs DA, Coffman T, Saager L, Levy WJ, Godbold M, Pace NL, Wethington KL, Paganelli WC, Durieux ME, Domino KB, Nair B, Ehrenfeld JM, Wanderer JP, Schonberger RB, Berris J, Lins S, Coles P, Cummings KC, Maheshwari K, Berman MF, Wedeven C, LaGorio J, Fleishut PM, Ellis TA, Molina S, Carl C, Kadry B, van Klei WA, Pasma W, Jameson LC, Helsten DL, Avidan MS, . Risk of Epidural Hematoma after Neuraxial Techniques in Thrombocytopenic Parturients: A Report from the Multicenter Perioperative Outcomes Group. Anesthesiology. 2017 Jun; 126(6): 1053-63. PMID: 28383323, PMCID: PMC5445642, DOI: 10.1097/ALN.0000000000001630, ISSN: 1528-1175.

Coute RA, Ehrenfeld JM, Gupta DK, Terekhov MA, Wanderer JP. Electronically self-assessed functional capacity and exercise testing: A comparison of the Duke Activity Status Index and Patient-Reported Outcomes Measurement Information System tools. Am. Heart J [print-electronic]. 2017 Jun; 188: 82-6. PMID: 28577684, PII: S0002-8703(17)30086-8, DOI: 10.1016/j.ahj.2017.03.005, ISSN: 1097-6744.

Self WH, Semler MW, Wanderer JP, Ehrenfeld JM, Byrne DW, Wang L, Atchison L, Felbinger M, Jones ID, Russ S, Shaw AD, Bernard GR, Rice TW. Saline versus balanced crystalloids for intravenous fluid therapy in the emergency department: study protocol for a cluster-randomized, multiple-crossover trial. Trials. 2017 Apr 4/13/2017; 18(1): 178. PMID: 28407811, PMCID: PMC5390477, PII: 10.1186/s13063-017-1923-6, DOI: 10.1186/s13063-017-1923-6, ISSN: 1745-6215.

Semler MW, Self WH, Wang L, Byrne DW, Wanderer JP, Ehrenfeld JM, Stollings JL, Kumar AB, Hernandez A, Guillamondegui OD, May AK, Siew ED, Shaw AD, Bernard GR, Rice TW, , . Balanced crystalloids versus saline in the intensive care unit: study protocol for a cluster-randomized, multiple-crossover trial. Trials. 2017 Mar 3/16/2017; 18(1): 129. PMID: 28302179, PMCID: PMC5356286, PII: 10.1186/s13063-017-1871-1, DOI: 10.1186/s13063-017-1871-1, ISSN: 1745-6215.

McDowell J, Wu A, Ehrenfeld JM, Urman RD. Effect of the Implementation of a New Electronic Health Record System on Surgical Case Turnover Time. J Med Syst [print-electronic]. 2017 Mar; 41(3): 42. PMID: 28130725, PII: 10.1007/s10916-017-0690-y, DOI: 10.1007/s10916-017-0690-y, ISSN: 1573-689X.

Ehrenfeld JM, Wanderer JP, Terekhov M, Rothman BS, Sandberg WS. A Perioperative Systems Design to Improve Intraoperative Glucose Monitoring Is Associated with a Reduction in Surgical Site Infections in a Diabetic Patient Population. Anesthesiology. 2017 Mar; 126(3): 431-40. PMID: 28106608, DOI: 10.1097/ALN.0000000000001516, ISSN: 1528-1175.

Freundlich RE, Wanderer JP, Ehrenfeld JM. Building Big Datasets: Do Not Forget the EMR. Anesth. Analg [print-electronic]. 2017 Feb 2/16/2017; PMID: 28212218, DOI: 10.1213/ANE.0000000000001809, ISSN: 1526-7598.

Stapelfeldt WH, Yuan H, Dryden JK, Strehl KE, Cywinski JB, Ehrenfeld JM, Bromley P. The SLUScore: A Novel Method for Detecting Hazardous Hypotension in Adult Patients Undergoing Noncardiac Surgical Procedures. Anesth. Analg [print-electronic]. 2017 Jan 1/19/2017; PMID: 28107274, DOI: 10.1213/ANE.0000000000001797, ISSN: 1526-7598.

Theobald CN, Choma NN, Ehrenfeld JM, Russ S, Kripalani S. Effect of a Handover Tool on Efficiency of Care and Mortality for Interhospital Transfers. J Hosp Med. 2017 Jan; 12(1): 23-8. PMID: 28125823, ISSN: 1553-5606.

Upchurch CP, Grijalva CG, Russ S, Collins SP, Semler MW, Rice TW, Liu D, Ehrenfeld JM, High K, Barrett TW, McNaughton CD, Self WH. Comparison of Etomidate and Ketamine for Induction During Rapid Sequence Intubation of Adult Trauma Patients. Ann Emerg Med. 2017 Jan; 69(1): 24-33.e2. PMID: 27993308, PMCID: PMC5180365, PII: S0196-0644(16)30467-X, DOI: 10.1016/j.annemergmed.2016.08.009, ISSN: 1097-6760.

Cummings JJ, Ehrenfeld JM, McEvoy MD. A Guide to Implementing Enhanced Recovery After Surgery Protocols: Creating, Scaling, and Managing a Perioperative Consult Service. Int Anesthesiol Clin. 2017; 55(4): 101-15. PMID: 28901985, PII: 00004311-201705540-00010, DOI: 10.1097/AIA.0000000000000163, ISSN: 1537-1913.

Hund HC, Rice MJ, Ehrenfeld J. An Evaluation of the State of Neuromuscular Blockade Monitoring Devices. J Med Syst [print-electronic]. 2016 Dec; 40(12): 281. PMID: 27787785, PII: 10.1007/s10916-016-0641-z, DOI: 10.1007/s10916-016-0641-z, ISSN: 1573-689X.

Wanderer JP, Nelson SE, Ehrenfeld JM, Monahan S, Park S. Clinical Data Visualization: The Current State and Future Needs. J Med Syst [print-electronic]. 2016 Dec; 40(12): 275. PMID: 27787779, PII: 10.1007/s10916-016-0643-x, DOI: 10.1007/s10916-016-0643-x, ISSN: 1573-689X.

Kummerow Broman K, Hayes RM, Kripalani S, Vasilevskis EE, Phillips SE, Ehrenfeld JM, Holzman MD, Sharp KW, Pierce RA, Nealon WH, Poulose BK. Interhospital transfer for acute surgical care: does delay matter?. Am. J. Surg [print-electronic]. 2016 Nov; 212(5): 823-30. PMID: 27381817, PMCID: PMC5204367, PII: S0002-9610(16)30240-9, DOI: 10.1016/j.amjsurg.2016.03.004, ISSN: 1879-1883.

House LM, Marolen KN, St Jacques PJ, McEvoy MD, Ehrenfeld JM. Surgical Apgar score is associated with myocardial injury after noncardiac surgery. J Clin Anesth [print-electronic]. 2016 Nov; 34: 395-402. PMID: 27687420, PII: S0952-8180(16)30193-3, DOI: 10.1016/j.jclinane.2016.05.009, ISSN: 1873-4529.

Semler MW, Wanderer JP, Ehrenfeld JM, Stollings JL, Self WH, Siew ED, Wang L, Byrne DW, Shaw AD, Bernard GR, Rice TW, . Balanced Crystalloids versus Saline in the Intensive Care Unit: The SALT Randomized Trial. Am. J. Respir. Crit. Care Med [print-electronic]. 2016 Oct 10/17/2016; PMID: 27749094, DOI: 10.1164/rccm.201607-1345OC, ISSN: 1535-4970.

House LM, Calloway NH, Sandberg WS, Ehrenfeld JM. Prolonged patient emergence time among clinical anesthesia resident trainees. J Anaesthesiol Clin Pharmacol. 2016 Oct; 32(4): 446-52. PMID: 28096573, PMCID: PMC5187607, PII: JOACP-32-446, DOI: 10.4103/0970-9185.194776, ISSN: 0970-9185.

Kappen TH, Wanderer JP, Peelen LM, Moons KG, Ehrenfeld JM. Prediction Model for In-hospital Mortality Should Accurately Predict the Risks of Patients Who Are Truly at Risk. Anesthesiology. 2016 Oct; 125(4): 815-6. PMID: 27649433, PII: 00000542-201610000-00046, DOI: 10.1097/ALN.0000000000001269, ISSN: 1528-1175.

Fabbri D, Ehrenfeld JM. Hands Free Automatic Clinical Care Documentation: Opportunities for Motion Sensors and Cameras [editorial]. J Med Syst. 2016 Oct; 40(10): 213. PMID: 27530759, PII: 10.1007/s10916-016-0570-x, DOI: 10.1007/s10916-016-0570-x, ISSN: 1573-689X.

Bulka CM, Terekhov MA, Martin BJ, Dmochowski RR, Hayes RM, Ehrenfeld JM. Nondepolarizing Neuromuscular Blocking Agents, Reversal, and Risk of Postoperative Pneumonia. Anesthesiology. 2016 Oct; 125(4): 647-55. PMID: 27496656, DOI: 10.1097/ALN.0000000000001279, ISSN: 1528-1175.

Terekhov MA, Ehrenfeld JM, Dutton RP, Guillamondegui OD, Martin BJ, Wanderer JP. Intraoperative Care Transitions Are Not Associated with Postoperative Adverse Outcomes. Anesthesiology. 2016 Oct; 125(4): 690-9. PMID: 27466034, DOI: 10.1097/ALN.0000000000001246, ISSN: 1528-1175.

Woolard AA, Ehrenfeld JM, Eagle SS, Wanderer JP. A retrospective study showing the extent of compliance with perioperative guidelines in patients with coronary stents with regard to double antiplatelet therapy. J Clin Anesth [print-electronic]. 2016 Sep; 33: 179-84. PMID: 27555160, PII: S0952-8180(16)00110-0, DOI: 10.1016/j.jclinane.2016.01.030, ISSN: 1873-4529.

Kappen TH, Wanderer JP, Ehrenfeld JM, Weinger MB. Is Intraoperative Hypotension Truly a Too Simple Problem for Useful Decision Support?. Anesth. Analg. 2016 Sep; 123(3): 792-3. PMID: 27331779, DOI: 10.1213/ANE.0000000000001364, ISSN: 1526-7598.

Rothman BS, Shotwell MS, Beebe R, Wanderer JP, Ehrenfeld JM, Patel N, Sandberg WS. Electronically Mediated Time-out Initiative to Reduce the Incidence of Wrong Surgery: An Interventional Observational Study. Anesthesiology. 2016 Sep; 125(3): 484-94. PMID: 27272671, DOI: 10.1097/ALN.0000000000001194, ISSN: 1528-1175.

Broman KK, Poulose BK, Phillips SE, Ehrenfeld JM, Sharp KW, Pierce RA, Holzman MD. Unnecessary Transfers for Acute Surgical Care: Who and Why?. Am Surg. 2016 Aug; 82(8): 672-8. PMID: 27657580, ISSN: 1555-9823.

Semler MW, Rice TW, Shaw AD, Siew ED, Self WH, Kumar AB, Byrne DW, Ehrenfeld JM, Wanderer JP. Identification of Major Adverse Kidney Events Within the Electronic Health Record. J Med Syst [print-electronic]. 2016 Jul; 40(7): 167. PMID: 27234478, PII: 10.1007/s10916-016-0528-z, DOI: 10.1007/s10916-016-0528-z, ISSN: 1573-689X.

Terekhov MA, Ehrenfeld JM, Wanderer JP. In Reply [letter]. Anesthesiology. 2016 May; 124(5): 1196-7. PMID: 27093662, PII: 00000542-201605000-00044, DOI: 10.1097/ALN.0000000000001067, ISSN: 1528-1175.

Ehrenfeld JM, Spickard WA, Cutrer WB. Medical Student Contributions In The Workplace: Can We Put a Value on Priceless?. J Med Syst [print-electronic]. 2016 May; 40(5): 128. PMID: 27079577, PII: 10.1007/s10916-016-0494-5, DOI: 10.1007/s10916-016-0494-5, ISSN: 1573-689X.

Wu A, Brovman EY, Whang EE, Ehrenfeld JM, Urman RD. The Impact of Overestimations of Surgical Control Times Across Multiple Specialties on Medical Systems. J Med Syst [print-electronic]. 2016 Apr; 40(4): 95. PMID: 26860918, PII: 10.1007/s10916-016-0457-x, DOI: 10.1007/s10916-016-0457-x, ISSN: 1573-689X.

Tabing AK, Ehrenfeld JM, Wanderer JP. In reply: Sevoflurane or desflurane: Which one is more expensive? Limiting the accessibility of cost-prohibitive drugs: The story is incomplete [letter]. Can J Anaesth [print-electronic]. 2016 Mar; 63(3): 361. PMID: 26678401, PII: 10.1007/s12630-015-0532-7, DOI: 10.1007/s12630-015-0532-7, ISSN: 1496-8975.

Aline F, Wanderer JP, Ehrenfeld JM. Managing the Impact of the ICD-10 Transition on a Data Warehouse. J Med Syst [print-electronic]. 2016 Mar; 40(3): 57. PMID: 26649437, PII: 10.1007/s10916-015-0418-9, DOI: 10.1007/s10916-015-0418-9, ISSN: 1573-689X.

Greenberg SE, VanHouten JP, Lakomkin N, Ehrenfeld J, Jahangir AA, Boyce RH, Obremksey WT, Sethi MK. Does Admission to Medicine or Orthopaedics Impact a Geriatric Hip Patient's Hospital Length of Stay?. J Orthop Trauma. 2016 Feb; 30(2): 95-9. PMID: 26371621, PMCID: PMC4841672, DOI: 10.1097/BOT.0000000000000440, ISSN: 1531-2291.

Kummerow Broman K, Phillips S, Hayes RM, Ehrenfeld JM, Holzman MD, Sharp K, Kripalani S, Poulose BK. Insurance status influences emergent designation in surgical transfers. J. Surg. Res [print-electronic]. 2016 Feb; 200(2): 579-85. PMID: 26346526, PMCID: PMC4691367, PII: S0022-4804(15)00863-X, DOI: 10.1016/j.jss.2015.08.021, ISSN: 1095-8673.

Avilucea FR, Sathiyakumar V, Greenberg SE, Ghiam M, Thakore RV, Francois E, Benvenuti MA, Siuta M, Smith AK, Ehrenfeld JM, Evans JM, Obremskey WT, Sethi MK. Open distal tibial shaft fractures: a retrospective comparison of medial plate versus nail fixation. Eur J Trauma Emerg Surg [print-electronic]. 2016 Feb; 42(1): 101-6. PMID: 26038037, PII: 10.1007/s00068-015-0519-7, DOI: 10.1007/s00068-015-0519-7, ISSN: 1863-9941.

Mitchell PM, Corrigan CM, Patel NA, Silverberg AJ, Greenberg SE, Thakore RV, Obremskey WT, Ehrenfeld JM, Evans JM, Sethi MK. 13-Year experience in external fixation of the pelvis: complications, reduction and removal. Eur J Trauma Emerg Surg [print-electronic]. 2016 Feb; 42(1): 91-6. PMID: 26038020, PII: 10.1007/s00068-015-0499-7, DOI: 10.1007/s00068-015-0499-7, ISSN: 1863-9941.

Humble SS, Wilson LD, McKenna JW, Leath TC, Song Y, Davidson MA, Ehrenfeld JM, Guillamondegui OD, Pandharipande PP, Patel MB. Tracheostomy risk factors and outcomes after severe traumatic brain injury. Brain Inj [print-electronic]. 2016; 30(13-14): 1642-7. PMID: 27740854, DOI: 10.1080/02699052.2016.1199915, ISSN: 1362-301X.

Sathiyakumar V, Estevez-Ordonez D, Thakore RV, Lee YM, Ehrenfeld JM, Obremskey WT, Sethi MK. American Society of Anesthesiologists Score as a Predictive Tool to Optimize Blood Ordering for Intraoperative Transfusion in Orthopaedic Trauma Cases. J Surg Orthop Adv. 2016; 25(2): 105-9. PMID: 27518295, PII:, ISSN: 1548-825X.

McEvoy MD, Wanderer JP, King AB, Geiger TM, Tiwari V, Terekhov M, Ehrenfeld JM, Furman WR, Lee LA, Sandberg WS. A perioperative consult service results in reduction in cost and length of stay for colorectal surgical patients: evidence from a healthcare redesign project. Perioper Med (Lond). 2016; 5: 3. PMID: 26855773, PMCID: PMC4743367, PII: 28, DOI: 10.1186/s13741-016-0028-1.

McEvoy MD, Hand WR, Stiegler MP, DiLorenzo AN, Ehrenfeld JM, Moran KR, Lekowski R, Nunnally ME, Manning EL, Shi Y, Shotwell MS, Gupta RK, Corey JM, Schell RM. A Smartphone-based Decision Support Tool Improves Test Performance Concerning Application of the Guidelines for Managing Regional Anesthesia in the Patient Receiving Antithrombotic or Thrombolytic Therapy. Anesthesiology. 2016 Jan; 124(1): 186-98. PMID: 26513023, DOI: 10.1097/ALN.0000000000000885, ISSN: 1528-1175.

Tabing AK, Ehrenfeld JM, Wanderer JP. In reply: Observational study of prolonged times to tracheal extubation [letter]. Can J Anaesth [print-electronic]. 2016 Jan; 63(1): 117-8. PMID: 26394778, PII: 10.1007/s12630-015-0497-6, DOI: 10.1007/s12630-015-0497-6, ISSN: 1496-8975.

Gruss C, Terekhov MA, Ehrenfeld JM, Kunic RJ, Wanderer JP. Estimating virtual neck circumference for preoperative STOP-BANG assessment: a retrospective cohort study [letter]. Can J Anaesth [print-electronic]. 2016 Jan; 63(1): 120-2. PMID: 26385364, PII: 10.1007/s12630-015-0495-8, DOI: 10.1007/s12630-015-0495-8, ISSN: 1496-8975.

Edmiston EK, Donald CA, Sattler AR, Peebles JK, Ehrenfeld JM, Eckstrand KL. Opportunities and Gaps in Primary Care Preventative Health Services for Transgender Patients: A Systemic Review. Transgend Health. 2016; 1(1): 216-30. PMID: 28861536, PMCID: PMC5367473, PII: 10.1089/trgh.2016.0019, DOI: 10.1089/trgh.2016.0019, ISSN: 2380-193X.

Levin MA, Wanderer JP, Ehrenfeld JM. Data, Big Data, and Metadata in Anesthesiology. Anesth. Analg. 2015 Dec; 121(6): 1661-7. PMID: 26579664, PII: 00000539-201512000-00040, DOI: 10.1213/ANE.0000000000000716, ISSN: 1526-7598.

Thakore RV, Greenberg SE, Shi H, Foxx AM, Francois EL, Prablek MA, Nwosu SK, Archer KR, Ehrenfeld JM, Obremskey WT, Sethi MK. Surgical site infection in orthopedic trauma: A case-control study evaluating risk factors and cost. J Clin Orthop Trauma [print-electronic]. 2015 Dec; 6(4): 220-6. PMID: 26566333, PMCID: PMC4600831, PII: S0976-5662(15)00165-4, DOI: 10.1016/j.jcot.2015.04.004, ISSN: 0976-5662.

Donald C, Ehrenfeld JM. The Opportunity for Medical Systems to Reduce Health Disparities Among Lesbian, Gay, Bisexual, Transgender and Intersex Patients. J Med Syst [print-electronic]. 2015 Nov; 39(11): 178. PMID: 26411930, PII: 10.1007/s10916-015-0355-7, DOI: 10.1007/s10916-015-0355-7, ISSN: 1573-689X.

Jann JT, Edmiston EK, Ehrenfeld JM. Important Considerations for Addressing LGBT Health Care Competency [letter]. Am J Public Health [print-electronic]. 2015 Nov; 105(11): e8. PMID: 26378837, DOI: 10.2105/AJPH.2015.302864, ISSN: 1541-0048.

Jering MZ, Marolen KN, Shotwell MS, Denton JN, Sandberg WS, Ehrenfeld JM. Combining the ASA Physical Classification System and Continuous Intraoperative Surgical Apgar Score Measurement in Predicting Postoperative Risk. J Med Syst [print-electronic]. 2015 Nov; 39(11): 147. PMID: 26359018, PII: 10.1007/s10916-015-0332-1, DOI: 10.1007/s10916-015-0332-1, ISSN: 1573-689X.

Terekhov MA, Ehrenfeld JM, Wanderer JP. Preoperative Surgical Risk Predictions Are Not Meaningfully Improved by Including the Surgical Apgar Score: An Analysis of the Risk Quantification Index and Present-On-Admission Risk Models. Anesthesiology. 2015 Nov; 123(5): 1059-66. PMID: 26352373, DOI: 10.1097/ALN.0000000000000858, ISSN: 1528-1175.

Starnes JR, McEvoy MD, Ehrenfeld JM, Sandberg WS, Wanderer JP. Automated Case Cancellation Review System Improves Systems-Based Practice. J Med Syst [print-electronic]. 2015 Nov; 39(11): 134. PMID: 26319274, DOI: 10.1007/s10916-015-0330-3, ISSN: 1573-689X.

Semler MW, Rice TW, Ehrenfeld JM. Leveraging Clinical Informatics in the Conduct of Clinical Trials. J Med Syst. 2015 Oct; 39(10): 112. PMID: 26276019, DOI: 10.1007/s10916-015-0317-0, ISSN: 1573-689X.

Tabing AK, Ehrenfeld JM, Wanderer JP. Limiting the accessibility of cost-prohibitive drugs reduces overall anesthetic drug costs: a retrospective before and after analysis. Can J Anaesth [print-electronic]. 2015 Oct; 62(10): 1045-54. PMID: 26239665, DOI: 10.1007/s12630-015-0442-8, ISSN: 1496-8975.

Sathiyakumar V, Shi H, Thakore RV, Lee YM, Joyce D, Ehrenfeld J, Obremskey WT, Sethi MK. Isolated sacral injuries: Postoperative length of stay, complications, and readmission. World J Orthop. 2015 Sep 9/18/2015; 6(8): 629-35. PMID: 26396939, PMCID: PMC4573507, DOI: 10.5312/wjo.v6.i8.629.

Johnson DJ, Greenberg SE, Sathiyakumar V, Thakore R, Ehrenfeld JM, Obremskey WT, Sethi MK. Relationship between the Charlson Comorbidity Index and cost of treating hip fractures: implications for bundled payment. J Orthop Traumatol [print-electronic]. 2015 Sep; 16(3): 209-13. PMID: 25697846, PMCID: PMC4559541, DOI: 10.1007/s10195-015-0337-z, ISSN: 1590-9999.

Ousley J, Baucom RB, Stewart MK, Phillips SE, Holzman MD, Ehrenfeld JM, Sharp KW, Nealon WH, Poulose BK. Previous Methicillin-Resistant Staphylococcus aureus Infection Independent of Body Site Increases Odds of Surgical Site Infection after Ventral Hernia Repair. J. Am. Coll. Surg [print-electronic]. 2015 Aug; 221(2): 470-7. PMID: 26206645, PII: S1072-7515(15)00338-5, DOI: 10.1016/j.jamcollsurg.2015.04.023, ISSN: 1879-1190.

Mathews L, Kla KM, Marolen KN, Sandberg WS, Ehrenfeld JM. Measuring and Improving First Case On-Time Starts and Analysis of Factors Predicting Delay in Neurosurgical Operating Rooms. J Neurosurg Anesthesiol. 2015 Jul; 27(3): 203-8. PMID: 25272065, DOI: 10.1097/ANA.0000000000000131, ISSN: 1537-1921.

Hong TS, Bush EC, Hauenstein MF, Lafontant A, Li C, Wanderer JP, Ehrenfeld JM. A hand hygiene compliance check system: brief communication on a system to improve hand hygiene compliance in hospitals and reduce infection. J Med Syst [print-electronic]. 2015 Jun; 39(6): 69. PMID: 25963200, DOI: 10.1007/s10916-015-0253-z, ISSN: 1573-689X.

Baucom RB, Phillips SE, Ehrenfeld JM, Muldoon RL, Poulose BK, Herline AJ, Wise PE, Geiger TM. Association of Perioperative Hypothermia During Colectomy With Surgical Site Infection. JAMA Surg. 2015 Jun; 150(6): 570-5. PMID: 25902410, PII: 2276484, DOI: 10.1001/jamasurg.2015.77, ISSN: 2168-6262.

Thakore RV, Foxx AM, Lang MF, Sathiyakumar V, Obremskey WT, Boyce RH, Ehrenfeld JM, Sethi MK. Operative intervention for geriatric hip fracture: does type of surgery affect hospital length of stay?. Am J. Orthop. 2015 May; 44(5): 228-32. PMID: 25950538, ISSN: 1934-3418.

Starnes JR, Wanderer JP, Ehrenfeld JM. Metadata from data: identifying holidays from anesthesia data. J Med Syst [print-electronic]. 2015 May; 39(5): 44. PMID: 25732080, DOI: 10.1007/s10916-015-0232-4, ISSN: 1573-689X.

Lilot M, Ehrenfeld JM, Lee C, Harrington B, Cannesson M, Rinehart J. Variability in practice and factors predictive of total crystalloid administration during abdominal surgery: retrospective two-centre analysis. Br J Anaesth [print-electronic]. 2015 May; 114(5): 767-76. PMID: 25586725, PII: aeu452, DOI: 10.1093/bja/aeu452, ISSN: 1471-6771.

Thakore RV, Greenberg SE, Bulka CM, Ehrenfeld JM, Obremskey WT, Sethi MK. Geographic variations in hospital charges and Medicare payments for major joint arthroplasty. J Arthroplasty [print-electronic]. 2015 May; 30(5): 728-32. PMID: 25556041, PII: S0883-5403(14)00942-5, DOI: 10.1016/j.arth.2014.12.011, ISSN: 1532-8406.

Malapero RJ, Gabriel RA, Gimlich R, Ehrenfeld JM, Philip BK, Bates DW, Urman RD. An anesthesia medication cost scorecard--concepts for individualized feedback. J Med Syst [print-electronic]. 2015 May; 39(5): 48. PMID: 25732076, DOI: 10.1007/s10916-015-0226-2, ISSN: 1573-689X.

Wanderer JP, Shi Y, Schildcrout JS, Ehrenfeld JM, Epstein RH. Supervising anesthesiologists cannot be effectively compared according to their patients' postanesthesia care unit admission pain scores. Anesth. Analg. 2015 Apr; 120(4): 923-32. PMID: 25325754, DOI: 10.1213/ANE.0000000000000480, ISSN: 1526-7598.

Kumar AB, Shi Y, Shotwell MS, Richards J, Ehrenfeld JM. Hypernatremia is a significant risk factor for acute kidney injury after subarachnoid hemorrhage: a retrospective analysis. Neurocrit Care. 2015 Apr; 22(2): 184-91. PMID: 25231531, DOI: 10.1007/s12028-014-0067-8, ISSN: 1556-0961.

Ihejirika RC, Thakore RV, Sathiyakumar V, Ehrenfeld JM, Obremskey WT, Sethi MK. An assessment of the inter-rater reliability of the ASA physical status score in the orthopaedic trauma population. Injury [print-electronic]. 2015 Apr; 46(4): 542-6. PMID: 24656923, PII: S0020-1383(14)00121-1, DOI: 10.1016/j.injury.2014.02.039, ISSN: 1879-0267.

Whiting PS, Greenberg SE, Thakore RV, Alamanda VK, Ehrenfeld JM, Obremskey WT, Jahangir A, Sethi MK. What factors influence follow-up in orthopedic trauma surgery?. Arch Orthop Trauma Surg [print-electronic]. 2015 Mar; 135(3): 321-7. PMID: 25617213, DOI: 10.1007/s00402-015-2151-8, ISSN: 1434-3916.

Ehrenfeld JM, Wanderer JP. The limitations of manually entered data in acute care environments [letter]. Can J Anaesth [print-electronic]. 2015 Mar; 62(3): 327-8. PMID: 25398600, DOI: 10.1007/s12630-014-0276-9, ISSN: 1496-8975.

Ehrenfeld JM. The current and future needs of our medical systems. J Med Syst [print-electronic]. 2015 Feb; 39(2): 16. PMID: 25638720, DOI: 10.1007/s10916-015-0212-8, ISSN: 1573-689X.

Wanderer JP, Gruss CL, Ehrenfeld JM. Using Visual Analytics to Determine the Utilization of Preoperative Anesthesia Assessments. Appl Clin Inform. 2015; 6(4): 629-37. PMID: 26767060, PMCID: PMC4704033, DOI: 10.4338/ACI-2015-02-CR-0022, ISSN: 1869-0327.

Wanderer JP, Ehrenfeld JM, Epstein RH, Kor DJ, Bartz RR, Fernandez-Bustamante A, Vidal Melo MF, Blum JM. Temporal trends and current practice patterns for intraoperative ventilation at U.S. academic medical centers: a retrospective study. BMC Anesthesiol. 2015; 15: 40. PMID: 25852301, PMCID: PMC4387596, PII: 10, DOI: 10.1186/s12871-015-0010-3, ISSN: 1471-2253.

Bulka CM, Shotwell MS, Ehrenfeld JM. Reply to Dr Bhatia. Reg Anesth Pain Med. 2015 Jan; 40(1): 86-7. PMID: 25503352, PII: 00115550-201501000-00018, DOI: 10.1097/AAP.0000000000000202, ISSN: 1532-8651.

Chester SD, Ehrenfeld JM, Eckstrand KL. Results of an Institutional LGBT Climate Survey at an Academic Medical Center. LGBT Health [print-electronic]. 2014 Dec; 1(4): 327-30. PMID: 26789861, DOI: 10.1089/lgbt.2013.0055, ISSN: 2325-8306.

Epstein RH, Dexter F, Lopez MG, Ehrenfeld JM. Anesthesiologist staffing considerations consequent to the temporal distribution of hypoxemic episodes in the postanesthesia care unit. Anesth. Analg. 2014 Dec; 119(6): 1322-33. PMID: 25185590, DOI: 10.1213/ANE.0000000000000410, ISSN: 1526-7598.

McDonald MR, Sathiyakumar V, Apfeld JC, Hooe B, Ehrenfeld J, Obremskey WT, Sethi MK. Predictive factors of hospital length of stay in patients with operatively treated ankle fractures. J Orthop Traumatol [print-electronic]. 2014 Dec; 15(4): 255-8. PMID: 24337780, PMCID: PMC4244567, DOI: 10.1007/s10195-013-0280-9, ISSN: 1590-9999.

Bulka CM, Wanderer JP, Ehrenfeld JM. Anesthesia technique and outcomes after hip fracture surgery [letter]. JAMA. 2014 Nov 11/5/2014; 312(17): 1801. PMID: 25369495, PII: 1920960, DOI: 10.1001/jama.2014.11229, ISSN: 1538-3598.

Schildcrout JS, Han X, Ehrenfeld JM, Wagner CE, Pretorius M. In reply [letter]. Anesthesiology. 2014 Nov; 121(5): 1128-30. PMID: 25335176, PII: 00000542-201411000-00039, DOI: 10.1097/ALN.0000000000000418, ISSN: 1528-1175.

Wanderer JP, Shaw AD, Ehrenfeld JM. Automated data transmission for the Society of Thoracic Surgeons' adult cardiac anesthesia module [letter]. Anesth. Analg. 2014 Nov; 119(5): 1221-2. PMID: 25329030, PII: 00000539-201411000-00035, DOI: 10.1213/ANE.0000000000000395, ISSN: 1526-7598.

Gabriel RA, Gimlich R, Ehrenfeld JM, Urman RD. Operating room metrics score card-creating a prototype for individualized feedback. J Med Syst [print-electronic]. 2014 Nov; 38(11): 144. PMID: 25315824, DOI: 10.1007/s10916-014-0144-8, ISSN: 1573-689X.

Bulka CM, Shotwell MS, Gupta RK, Sandberg WS, Ehrenfeld JM. Regional anesthesia, time to hospital discharge, and in-hospital mortality: a propensity score matched analysis. Reg Anesth Pain Med. 2014 Sep; 39(5): 381-6. PMID: 25025697, DOI: 10.1097/AAP.0000000000000121, ISSN: 1532-8651.

McDonald MR, Bulka CM, Thakore RV, Obremskey WT, Ehrenfeld JM, Jahangir AA, Sethi MK. Ankle radiographs in the early postoperative period: do they matter?. J Orthop Trauma. 2014 Sep; 28(9): 538-41. PMID: 24375274, DOI: 10.1097/BOT.0000000000000052, ISSN: 1531-2291.

Peccora CD, Gimlich R, Cornell RP, Vacanti CA, Ehrenfeld JM, Urman RD. Anesthesia report card - a customizable tool for performance improvement. J Med Syst [print-electronic]. 2014 Sep; 38(9): 105. PMID: 25038890, DOI: 10.1007/s10916-014-0105-2, ISSN: 1573-689X.

Shinall MC, Ehrenfeld JM, Guillamondegui OD. Religiously affiliated intensive care unit patients receive more aggressive end-of-life care. J. Surg. Res [print-electronic]. 2014 Aug; 190(2): 623-7. PMID: 24972737, PII: S0022-4804(14)00540-X, DOI: 10.1016/j.jss.2014.05.074, ISSN: 1095-8673.

Dageforde LA, Petersen AW, Feurer ID, Cavanaugh KL, Harms KA, Ehrenfeld JM, Moore DE. Health literacy of living kidney donors and kidney transplant recipients. Transplantation. 2014 Jul 7/15/2014; 98(1): 88-93. PMID: 24573114, PMCID: PMC4422102, DOI: 10.1097/TP.0000000000000027, ISSN: 1534-6080.

Rothman BS, Ehrenfeld JM. Paging doctor, emergency? [editorial]. Anesth. Analg. 2014 Jul; 119(1): 4-6. PMID: 24945116, PII: 00000539-201407000-00002, DOI: 10.1213/ANE.0000000000000281, ISSN: 1526-7598.

Baucom RB, Phillips SE, Ehrenfeld JM, Holzman MD, Nealon WH, Sharp KW, Kaiser JL, Poulose BK. Defining intraoperative hypothermia in ventral hernia repair. J. Surg. Res [print-electronic]. 2014 Jul; 190(1): 385-90. PMID: 24602479, PII: S0022-4804(14)00105-X, DOI: 10.1016/j.jss.2014.01.059, ISSN: 1095-8673.

Kay HF, Sathiyakumar V, Yoneda ZT, Lee YM, Jahangir AA, Ehrenfeld JM, Obremskey WT, Apfeld JC, Sethi MK. The effects of American Society of Anesthesiologists physical status on length of stay and inpatient cost in the surgical treatment of isolated orthopaedic fractures. J Orthop Trauma. 2014 Jul; 28(7): e153-9. PMID: 24149446, DOI: 10.1097/, ISSN: 1531-2291.

Bennett JM, Ehrenfeld JM, Markham L, Eagle SS. Anesthetic management and outcomes for patients with pulmonary hypertension and intracardiac shunts and Eisenmenger syndrome: a review of institutional experience. J Clin Anesth [print-electronic]. 2014 Jun; 26(4): 286-93. PMID: 24908593, PII: S0952-8180(14)00055-5, DOI: 10.1016/j.jclinane.2013.11.022, ISSN: 1873-4529.

Hand WR, Bridges KH, Stiegler MP, Schell RM, DiLorenzo AN, Ehrenfeld JM, Nietert PJ, McEvoy MD. Effect of a cognitive aid on adherence to perioperative assessment and management guidelines for the cardiac evaluation of noncardiac surgical patients. Anesthesiology. 2014 Jun; 120(6): 1339-49, quiz 1349. PMID: 24705442, PMCID: PMC4108481, DOI: 10.1097/ALN.0000000000000251, ISSN: 1528-1175.

Kay HF, Sathiyakumar V, Archer KR, Mathis SL, Apfeld JC, Lee YM, Jahangir AA, Ehrenfeld J, Obremskey WT, Sethi MK. The homeless orthopaedic trauma patient: follow-up, emergency room usage, and complications. J Orthop Trauma. 2014 Jun; 28(6): e128-32. PMID: 24296595, DOI: 10.1097/BOT.0000000000000000, ISSN: 1531-2291.

Corey JM, Bulka CM, Ehrenfeld JM. Is regional anesthesia associated with reduced PACU length of stay?: A retrospective analysis from a tertiary medical center. Clin. Orthop. Relat. Res. 2014 May; 472(5): 1427-33. PMID: 24142300, PMCID: PMC3971246, DOI: 10.1007/s11999-013-3336-5, ISSN: 1528-1132.

Stol IS, Ehrenfeld JM, Epstein RH. Technology diffusion of anesthesia information management systems into academic anesthesia departments in the United States. Anesth. Analg. 2014 Mar; 118(3): 644-50. PMID: 24557109, PII: 00000539-201403000-00024, DOI: 10.1213/ANE.0000000000000055, ISSN: 1526-7598.

Wagner CE, Bick JS, Johnson D, Ahmad R, Han X, Ehrenfeld JM, Schildcrout JS, Pretorius M. Etomidate use and postoperative outcomes among cardiac surgery patients. Anesthesiology. 2014 Mar; 120(3): 579-89. PMID: 24296761, PMCID: PMC3944222, DOI: 10.1097/ALN.0000000000000087, ISSN: 1528-1175.

Kodali BS, Kim KD, Flanagan H, Ehrenfeld JM, Urman RD. Variability of subspecialty-specific anesthesia-controlled times at two academic institutions. J Med Syst [print-electronic]. 2014 Feb; 38(2): 11. PMID: 24469685, DOI: 10.1007/s10916-014-0011-7, ISSN: 1573-689X.

Tolleson C, Stroh J, Ehrenfeld J, Neimat J, Konrad P, Phibbs F. The factors involved in deep brain stimulation infection: a large case series. Stereotact Funct Neurosurg [print-electronic]. 2014; 92(4): 227-33. PMID: 25096381, PII: 000362934, DOI: 10.1159/000362934, ISSN: 1423-0372.

Wanderer J, Mishra P, Ehrenfeld J. Innovation & market consolidation among electronic health record vendors: an acute need for regulation [editorial]. J Med Syst. 2014 Jan; 38(1): 8. PMID: 24424431, DOI: 10.1007/s10916-014-0008-2, ISSN: 1573-689X.

Ehrenfeld JM, McEvoy MD, Furman WR, Snyder D, Sandberg WS. Automated near-real-time clinical performance feedback for anesthesiology residents: one piece of the milestones puzzle. Anesthesiology. 2014 Jan; 120(1): 172-84. PMID: 24398735, PMCID: PMC3893706, PII: 00000542-201401000-00034, DOI: 10.1097/ALN.0000000000000071, ISSN: 1528-1175.

Ehrenfeld JM. Systems, technology and the critical need for rigorous evaluation. J Med Syst. 2014 Jan; 38(1): 9998. PMID: 24346932, DOI: 10.1007/s10916-013-9998-4, ISSN: 1573-689X.

Barocas DA, Kulahalli CS, Ehrenfeld JM, Kapu AN, Penson DF, You CC, Weavind L, Dmochowski R. Benchmarking the use of a rapid response team by surgical services at a tertiary care hospital. J. Am. Coll. Surg [print-electronic]. 2014 Jan; 218(1): 66-72. PMID: 24275072, PMCID: PMC4353563, PII: S1072-7515(13)01079-X, DOI: 10.1016/j.jamcollsurg.2013.09.011, ISSN: 1879-1190.

Ehrenfeld JM, Dexter F, Rothman BS, Minton BS, Johnson D, Sandberg WS, Epstein RH. Lack of utility of a decision support system to mitigate delays in admission from the operating room to the postanesthesia care unit. Anesth. Analg. 2013 Dec; 117(6): 1444-52. PMID: 24257394, PII: 00000539-201312000-00026, DOI: 10.1213/ANE.0b013e3182a8b0bd, ISSN: 1526-7598.

Phitayakorn R, Morales-Garcia D, Wanderer J, Lubitz CC, Gaz RD, Stephen AE, Ehrenfeld JM, Daniels GH, Hodin RA, Parangi S. Surgery for Graves' disease: a 25-year perspective. Am. J. Surg [print-electronic]. 2013 Nov; 206(5): 669-73. PMID: 24011567, PII: S0002-9610(13)00402-9, DOI: 10.1016/j.amjsurg.2013.07.005, ISSN: 1879-1883.

Wanderer JP, Ehrenfeld JM, Sandberg WS, Epstein RH. The changing scope of difficult airway management [letter]. Can J Anaesth [print-electronic]. 2013 Oct; 60(10): 1022-4. PMID: 23897492, DOI: 10.1007/s12630-013-9999-2, ISSN: 1496-8975.

Bulka CM, Cassedy EA, Sandberg WS, Ehrenfeld JM. A survey of modified rapid-sequence induction and intubation in Canadian academic centers [letter]. J Clin Anesth [print-electronic]. 2013 Sep; 25(6): 515-6. PMID: 24008190, PII: S0952-8180(13)00208-0, DOI: 10.1016/j.jclinane.2013.03.016, ISSN: 1873-4529.

Ehrenfeld JM, Agarwal AK, Henneman JP, Sandberg WS. Estimating the incidence of suspected epidural hematoma and the hidden imaging cost of epidural catheterization: a retrospective review of 43,200 cases. Reg Anesth Pain Med. 2013 Sep; 38(5): 409-14. PMID: 23924685, PMCID: PMC3799821, DOI: 10.1097/AAP.0b013e31829ecfa6, ISSN: 1532-8651.

Alamanda VK, Delisca GO, Mathis SL, Archer KR, Ehrenfeld JM, Miller MW, Homlar KC, Halpern JL, Schwartz HS, Holt GE. The financial burden of reexcising incompletely excised soft tissue sarcomas: a cost analysis. Ann. Surg. Oncol [print-electronic]. 2013 Sep; 20(9): 2808-14. PMID: 23636515, DOI: 10.1245/s10434-013-2995-5, ISSN: 1534-4681.

Ehrenfeld JM, Dexter F, Rothman BS, Johnson AM, Epstein RH. Case cancellation rates measured by surgical service differ whether based on the number of cases or the number of minutes cancelled. Anesth. Analg [print-electronic]. 2013 Sep; 117(3): 711-6. PMID: 23921653, PII: ANE.0b013e31829cc77a, DOI: 10.1213/ANE.0b013e31829cc77a, ISSN: 1526-7598.

Epstein RH, St Jacques P, Stockin M, Rothman B, Ehrenfeld JM, Denny JC. Automated identification of drug and food allergies entered using non-standard terminology. J Am Med Inform Assoc [print-electronic]. 2013 Sep; 20(5): 962-8. PMID: 23748627, PMCID: PMC3756276, PII: amiajnl-2013-001756, DOI: 10.1136/amiajnl-2013-001756, ISSN: 1527-974X.

Tiwari V, Dexter F, Rothman BS, Ehrenfeld JM, Epstein RH. Explanation for the near-constant mean time remaining in surgical cases exceeding their estimated duration, necessary for appropriate display on electronic white boards. Anesth. Analg [print-electronic]. 2013 Aug; 117(2): 487-93. PMID: 23780422, PII: ANE.0b013e31829772e9, DOI: 10.1213/ANE.0b013e31829772e9, ISSN: 1526-7598.

Blum JM, Stentz MJ, Maile MD, Jewell E, Raghavendran K, Engoren M, Ehrenfeld JM. Automated alerting and recommendations for the management of patients with preexisting hypoxia and potential acute lung injury: a pilot study. Anesthesiology. 2013 Aug; 119(2): 295-302. PMID: 23681144, PMCID: PMC3813292, DOI: 10.1097/ALN.0b013e3182987af4, ISSN: 1528-1175.

Mirzakhani H, Nozari A, Ehrenfeld JM, Peterfreund R, Szabo M, Walsh JL, Jiang Y, Sandberg W, Rosow C, Wang J. Case report: profound hypotension after anesthetic induction with propofol in patients treated with rifampin. Anesth. Analg [print-electronic]. 2013 Jul; 117(1): 61-4. PMID: 23687230, PII: ANE.0b013e318292cbd0, DOI: 10.1213/ANE.0b013e318292cbd0, ISSN: 1526-7598.

Backman ES, Triant VA, Ehrenfeld JM, Lu Z, Arpino P, Losina E, Gandhi RT. Safety of midazolam for sedation of HIV-positive patients undergoing colonoscopy. HIV Med [print-electronic]. 2013 Jul; 14(6): 379-84. PMID: 23332038, PMCID: PMC4120820, DOI: 10.1111/hiv.12014, ISSN: 1468-1293.

Kynes JM, Schildcrout JS, Hickson GB, Pichert JW, Han X, Ehrenfeld JM, Westlake MW, Catron T, Jacques PS. An analysis of risk factors for patient complaints about ambulatory anesthesiology care. Anesth. Analg [print-electronic]. 2013 Jun; 116(6): 1325-32. PMID: 23385054, PII: ANE.0b013e31827aef83, DOI: 10.1213/ANE.0b013e31827aef83, ISSN: 1526-7598.

Wanderer JP, Ehrenfeld JM, Sandberg WS, Rathmell JP. Infographics in anesthesiology: a volatile tale of two institutions. Anesthesiology. 2013 Jun; 118(6): 1456. PMID: 23059452, DOI: 10.1097/ALN.0b013e31826f3229, ISSN: 1528-1175.

Bateman BT, Mhyre JM, Ehrenfeld J, Kheterpal S, Abbey KR, Argalious M, Berman MF, Jacques PS, Levy W, Loeb RG, Paganelli W, Smith KW, Wethington KL, Wax D, Pace NL, Tremper K, Sandberg WS. The risk and outcomes of epidural hematomas after perioperative and obstetric epidural catheterization: a report from the Multicenter Perioperative Outcomes Group Research Consortium. Anesth. Analg [print-electronic]. 2013 Jun; 116(6): 1380-5. PMID: 22504213, PII: ANE.0b013e318251daed, DOI: 10.1213/ANE.0b013e318251daed, ISSN: 1526-7598.

Moore DC, Yoneda ZT, Powell M, Howard DL, Jahangir AA, Archer KR, Ehrenfeld JM, Obremskey WT, Sethi MK. Gunshot victims at a major level I trauma center: a study of 343,866 emergency department visits. J Emerg Med [print-electronic]. 2013 Mar; 44(3): 585-91. PMID: 22995579, PII: S0736-4679(12)00880-3, DOI: 10.1016/j.jemermed.2012.07.058, ISSN: 0736-4679.

Schwenk ES, Mraovic B, Maxwell RP, Kim GS, Ehrenfeld JM, Epstein RH. Root causes of intraoperative hypoglycemia: a case series. J Clin Anesth [print-electronic]. 2012 Dec; 24(8): 625-30. PMID: 23116589, PII: S0952-8180(12)00276-0, DOI: 10.1016/j.jclinane.2012.04.009, ISSN: 1873-4529.

Wanderer JP, Rao AV, Rothwell SH, Ehrenfeld JM. Comparing two anesthesia information management system user interfaces: a usability evaluation. Can J Anaesth [print-electronic]. 2012 Nov; 59(11): 1023-31. PMID: 23055030, DOI: 10.1007/s12630-012-9771-z, ISSN: 1496-8975.

Garcia AE, Bonnaig JV, Yoneda ZT, Richards JE, Ehrenfeld JM, Obremskey WT, Jahangir AA, Sethi MK. Patient variables which may predict length of stay and hospital costs in elderly patients with hip fracture. J Orthop Trauma. 2012 Nov; 26(11): 620-3. PMID: 22832431, DOI: 10.1097/BOT.0b013e3182695416, ISSN: 1531-2291.

Grosse-Sundrup M, Henneman JP, Sandberg WS, Bateman BT, Uribe JV, Nguyen NT, Ehrenfeld JM, Martinez EA, Kurth T, Eikermann M. Intermediate acting non-depolarizing neuromuscular blocking agents and risk of postoperative respiratory complications: prospective propensity score matched cohort study. BMJ. 2012 Oct 10/15/2012; 345: e6329. PMID: 23077290, PMCID: PMC3473088, ISSN: 1756-1833.

Hill JB, Patel A, Del Corral GA, Sexton KW, Ehrenfeld JM, Guillamondegui OD, Shack RB. Preoperative anemia predicts thrombosis and free flap failure in microvascular reconstruction. Ann Plast Surg. 2012 Oct; 69(4): 364-7. PMID: 22964664, DOI: 10.1097/SAP.0b013e31823ed606, ISSN: 1536-3708.

Lonergan DF, Ehrenfeld JM. Advancement of information technology in outpatient and perioperative settings to support patient care and translational research. Pain Manag. 2012 Sep; 2(5): 445-9. PMID: 24645860, DOI: 10.2217/pmt.12.43, ISSN: 1758-1877.

Ehrenfeld JM, Cassedy EA, Forbes VE, Mercaldo ND, Sandberg WS. Modified rapid sequence induction and intubation: a survey of United States current practice. Anesth. Analg [print-electronic]. 2012 Jul; 115(1): 95-101. PMID: 22025487, PMCID: PMC3270153, PII: ANE.0b013e31822dac35, DOI: 10.1213/ANE.0b013e31822dac35, ISSN: 1526-7598.

Ehrenfeld JM, Henneman JP, Peterfreund RA, Sheehan TD, Xue F, Spring S, Sandberg WS. Ongoing professional performance evaluation (OPPE) using automatically captured electronic anesthesia data. Jt Comm J Qual Patient Saf. 2012 Feb; 38(2): 73-80. PMID: 22372254, ISSN: 1553-7250.

Hobai IA, Gauran C, Chitilian HV, Ehrenfeld JM, Levinson J, Sandberg WS. The management and outcome of documented intraoperative heart rate-related electrocardiographic changes. J. Cardiothorac. Vasc. Anesth [print-electronic]. 2011 Oct; 25(5): 791-8. PMID: 21724417, PII: S1053-0770(11)00300-4, DOI: 10.1053/j.jvca.2011.03.174, ISSN: 1532-8422.

Wanderer JP, Sandberg WS, Ehrenfeld JM. Real-time alerts and reminders using information systems. Anesthesiol Clin [print-electronic]. 2011 Sep; 29(3): 389-96. PMID: 21871401, PMCID: PMC3164521, PII: S1932-2275(11)00040-1, DOI: 10.1016/j.anclin.2011.05.003, ISSN: 1932-2275.

Ehrenfeld JM, Epstein RH, Bader S, Kheterpal S, Sandberg WS. Automatic notifications mediated by anesthesia information management systems reduce the frequency of prolonged gaps in blood pressure documentation. Anesth. Analg [print-electronic]. 2011 Aug; 113(2): 356-63. PMID: 21415437, PMCID: PMC3121913, PII: ANE.0b013e31820d95e7, DOI: 10.1213/ANE.0b013e31820d95e7, ISSN: 1526-7598.

Chau A, Ehrenfeld JM. Using real-time clinical decision support to improve performance on perioperative quality and process measures. Anesthesiol Clin. 2011 Mar; 29(1): 57-69. PMID: 21295752, PMCID: PMC3071585, PII: S1932-2275(10)00116-3, DOI: 10.1016/j.anclin.2010.11.002, ISSN: 1932-2275.

Ehrenfeld JM, Rehman MA. Anesthesia information management systems: a review of functionality and installation considerations. J Clin Monit Comput [print-electronic]. 2011 Feb; 25(1): 71-9. PMID: 20734117, PMCID: PMC3387486, DOI: 10.1007/s10877-010-9256-y, ISSN: 1573-2614.

Ehrenfeld JM, Funk LM, Van Schalkwyk J, Merry AF, Sandberg WS, Gawande A. The incidence of hypoxemia during surgery: evidence from two institutions. Can J Anaesth [print-electronic]. 2010 Oct; 57(10): 888-97. PMID: 20680710, PMCID: PMC2991088, DOI: 10.1007/s12630-010-9366-5, ISSN: 1496-8975.

Ehrenfeld JM, Mulvoy W, Sandberg WS. Performance comparison of right- and left-sided double-lumen tubes among infrequent users. J. Cardiothorac. Vasc. Anesth [print-electronic]. 2010 Aug; 24(4): 598-601. PMID: 19942453, PII: S1053-0770(09)00340-1, DOI: 10.1053/j.jvca.2009.09.007, ISSN: 1532-8422.

Ehrenfeld JM, Seim AR, Berger DL, Sandberg WS. Implementation of a direct-from-recovery-room discharge pathway: a process improvement effort. Surg Innov [print-electronic]. 2009 Sep; 16(3): 258-65. PMID: 19578054, PII: 1553350609339169, DOI: 10.1177/1553350609339169, ISSN: 1553-3506.

Epstein RH, Dexter F, Ehrenfeld JM, Sandberg WS. Implications of event entry latency on anesthesia information management decision support systems. Anesth. Analg. 2009 Mar; 108(3): 941-7. PMID: 19224807, PII: 108/3/941, DOI: 10.1213/ane.0b013e3181949ae6, ISSN: 1526-7598.

Regenbogen SE, Ehrenfeld JM, Lipsitz SR, Greenberg CC, Hutter MM, Gawande AA. Utility of the surgical apgar score: validation in 4119 patients. Arch Surg. 2009 Jan; 144(1): 30-6; discussion 37. PMID: 19153322, PII: 144/1/30, DOI: 10.1001/archsurg.2008.504, ISSN: 1538-3644.

Ehrenfeld JM, Walsh JL, Sandberg WS. Right- and left-sided Mallinckrodt double-lumen tubes have identical clinical performance. Anesth. Analg. 2008 Jun; 106(6): 1847-52. PMID: 18499621, PII: 106/6/1847, DOI: 10.1213/ane.0b013e31816f24d5, ISSN: 1526-7598.

Sandberg WS, Sandberg EH, Seim AR, Anupama S, Ehrenfeld JM, Spring SF, Walsh JL. Real-time checking of electronic anesthesia records for documentation errors and automatically text messaging clinicians improves quality of documentation. Anesth. Analg. 2008 Jan; 106(1): 192-201, table of contents. PMID: 18165578, PII: 106/1/192, DOI: 10.1213/01.ane.0000289640.38523.bc, ISSN: 1526-7598.