Jonathan Efron

Professor

1989 …2019
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Research Output 1989 2019

2019

Anal Squamous Cell Carcinoma: Radiation Therapy Alone Must Be Avoided

Almaazmi, H., Taylor, J. P., Stem, M., Yu, D., Lo, B. D., Safar, B. & Efron, J. E., Jan 1 2019, (Accepted/In press) In : Journal of Surgical Research.

Research output: Contribution to journalArticle

Squamous Cell Carcinoma
Radiotherapy
Chemoradiotherapy
Survival
Psychosexual Development
Psychology
Neoplasms
Documentation
Social Support
Colectomy
Ulcerative Colitis
Emergencies
Quality Improvement
Mortality

Psychosocial Risks are Independently Associated with Cancer Surgery Outcomes in Medically Comorbid Patients

Leeds, I. L., Meyers, P. M., Enumah, Z. O., He, J., Burkhart, R., Haut, E., Efron, J. & Johnston, F., Jan 1 2019, (Accepted/In press) In : Annals of Surgical Oncology.

Research output: Contribution to journalArticle

Neoplasms
Psychology
Gastrointestinal Neoplasms
Observational Studies
Comorbidity
Rectal Neoplasms
Survival
Neoplasms
Quality of Health Care
Survival Analysis

Sequential short-course radiation therapy and chemotherapy in the neoadjuvant treatment of rectal adenocarcinoma

Jia, A. Y., Narang, A., Safar, B., Zaheer, A., Murphy, A., Azad, N., Gearhart, S. L., Fang, S. H., Efron, J., Warczynski, T., Hacker-Prietz, A. & Meyer, J., Aug 19 2019, In : Radiation Oncology. 14, 1, 147.

Research output: Contribution to journalArticle

Open Access
Neoadjuvant Therapy
Adenocarcinoma
Radiotherapy
Drug Therapy
oxaliplatin

Surgery After an Initial Episode of Uncomplicated Diverticulitis: Does Time to Resection Matter?

Varma, S., Mehta, A., Canner, J. K., Azar, F., Efron, D. T., Efron, J., Safar, B. & Sakran, J., Feb 1 2019, In : Journal of Surgical Research. 234, p. 224-230 7 p.

Research output: Contribution to journalArticle

Diverticulitis
Odds Ratio
Inpatients
Hospitalization
Databases

The Impact of Imatinib on Survival and Treatment Trends for Small Bowel and Colorectal Gastrointestinal Stromal Tumors

Almaazmi, H., Stem, M., Lo, B. D., Taylor, J. P., Fang, S. H., Safar, B., Efron, J. & Atallah, C., Jan 1 2019, (Accepted/In press) In : Journal of Gastrointestinal Surgery.

Research output: Contribution to journalArticle

Gastrointestinal Stromal Tumors
Colorectal Neoplasms
Survival
Therapeutics
Imatinib Mesylate

Treatment Strategies and Survival Trends for Anorectal Melanoma: Is it Time for a Change?

Taylor, J. P., Stem, M., Yu, D., Chen, S. Y., Fang, S. H., Gearhart, S. L., Safar, B. & Efron, J., Jan 1 2019, In : World journal of surgery.

Research output: Contribution to journalArticle

Immunotherapy
Melanoma
Survival
Therapeutics
Medicare
2018

Early ambulation after colorectal oncologic resection with perineal reconstruction is safe and effective

Calotta, N. A., O'Brien-Coon, D., Bos, T. J., Ostrander, B. T., Scott, A. V., Grant, M. C., Efron, J. & Sacks, J. M., Jan 1 2018, (Accepted/In press) In : American Journal of Surgery.

Research output: Contribution to journalArticle

Early Ambulation
Bed Rest
Reoperation
Walking
Standard of Care

Eye of the beholder: Risk calculators and barriers to adoption in surgical trainees

Leeds, I. L., Rosenblum, A. J., Wise, P. E., Watkins, A. C., Goldblatt, M. I., Haut, E., Efron, J. & Johnston, F., Jan 1 2018, (Accepted/In press) In : Surgery (United States).

Research output: Contribution to journalArticle

Communication
Pamphlets
Workflow
Outcome Assessment (Health Care)
Recognition (Psychology)
Morbidity
Surgical Wound Infection
Propensity Score
Colectomy
Intestinal Obstruction

Low Incidence of Dysplasia and Colorectal Cancer Observed among Inflammatory Bowel Disease Patients with Prolonged Colonic Diversion

Bettner, W., Rizzo, A., Brant, S., Dudley-Brown, S., Efron, J., Fang, S. H., Gearhart, S. L., Marohn, M., Parian, A., Kherad Pezhouh, M., Melia, J., Safar, B., Truta, B., Wick, E. & Lazarev, M., Apr 23 2018, In : Inflammatory Bowel Diseases. 24, 5, p. 1092-1098 7 p.

Research output: Contribution to journalArticle

Inflammatory Bowel Diseases
Colorectal Neoplasms
Incidence
Ulcerative Colitis
Crohn Disease

Predicting the Risk of Readmission From Dehydration After Ileostomy Formation: The Dehydration Readmission After Ileostomy Prediction Score

Chen, S. Y., Stem, M., Cerullo, M., Canner, J. K., Gearhart, S. L., Safar, B., Fang, S. H. & Efron, J., Dec 1 2018, In : Diseases of the Colon and Rectum. 61, 12, p. 1410-1417 8 p.

Research output: Contribution to journalArticle

Ileostomy
Dehydration
Quality Improvement
Area Under Curve
International Classification of Diseases

Survivorship care for early-stage colorectal cancer: A national survey of general surgeons and colorectal surgeons

Choi, Y., Huntley, J. H., Efron, J., Sato, K., Marohn, M. & Pollack, C., Jan 1 2018, (Accepted/In press) In : Colorectal Disease.

Research output: Contribution to journalArticle

Colorectal Neoplasms
Survival Rate
Primary Care Physicians
Long-Term Care
Patient Preference

The Safety of Outpatient Stoma Closure: on the Verge of a Paradigm Shift?

Taylor, J. P., Stem, M., Chen, S. Y., Yu, D., Fang, S. H., Gearhart, S. L., Safar, B. & Efron, J., Jan 1 2018, (Accepted/In press) In : Journal of Gastrointestinal Surgery.

Research output: Contribution to journalArticle

Outpatients
Safety
Ostomy
Patient Discharge
Quality Improvement
2017

A comparison of trends in operative approach and postoperative outcomes for colorectal cancer surgery

Addae, J. K., Gani, F., Fang, S. H., Wick, E. C., Althumairi, A. A., Efron, J., Canner, J. K., Euhus, D. M. & Schneider, E. B., Feb 1 2017, In : Journal of Surgical Research. 208, p. 111-120 10 p.

Research output: Contribution to journalArticle

Colorectal Surgery
Robotics
Colorectal Neoplasms
Minimally Invasive Surgical Procedures
Length of Stay

Colorectal interventions: Rectovaginal fistulas

Hicks, C. & Efron, J., May 27 2017, Pelvic Floor Dysfunction and Pelvic Surgery in the Elderly: An Integrated Approach. Springer New York, p. 371-385 15 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Rectovaginal Fistula

Early Surgical Intervention for Acute Ulcerative Colitis Is Associated with Improved Postoperative Outcomes

Leeds, I. L., Truta, B., Parian, A., Chen, S. Y., Efron, J., Gearhart, S. L., Safar, B. & Fang, S. H., Aug 17 2017, (Accepted/In press) In : Journal of Gastrointestinal Surgery. p. 1-8 8 p.

Research output: Contribution to journalArticle

Ulcerative Colitis
Colectomy
Length of Stay
Hospitalization
Costs and Cost Analysis

High dose-rate intra-operative radiation therapy during high risk genitourinary surgery: Initial observations and a proposal for its study in bladder cancer

Kates, M., Chappidi, M. R., Brant, A., Milbar, N., Sopko, N. A., Meyer, C., Terezakis, S. A., Herman, J. M., Efron, J., Safar, B., Tran, P. T., Ahuja, N., Pierorazio, P. M. & Bivalacqua, T., Jan 1 2017, In : Bladder Cancer. 3, 3, p. 191-199 9 p.

Research output: Contribution to journalArticle

Urinary Bladder Neoplasms
Radiotherapy
Cystectomy
Survival
Histology

Laparoscopy for Rectal Cancer

Atallah, C. & Efron, J., Apr 1 2017, In : Clinics in Colon and Rectal Surgery. 30, 2, p. 104-111 8 p., 00775.

Research output: Contribution to journalArticle

Rectal Neoplasms
Laparoscopy
Standard of Care
Morbidity
Mortality

Mesenteric component of rectal resection

Calvin Coffey, J. & Efron, J., Jan 1 2017, Mesenteric Principles of Gastrointestinal Surgery: Basic and Applied Science. CRC Press, p. 251-275 25 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Robotics
Rectum
Inflammatory Bowel Diseases
Colorectal Neoplasms
Colectomy
Colonoscopy
Colitis

Outcomes Associated With a Five-Point Surgical Site Infection Prevention Bundle in Women Undergoing Surgery for Ovarian Cancer

Lippitt, M. H., Fairbairn, M. G., Matsuno, R., Stone, R., Tanner Tanner, E. J., Wick, E. C., Angarita, A. C., Roche, K. L., Levinson, K., Bergstrom, J. E., Sinno, A. K., Curless, M. S., Wethington, S., Temkin, S. M., Efron, J., Hobson, D. & Nickles Fader, A. N., Sep 5 2017, (Accepted/In press) In : Obstetrics and Gynecology.

Research output: Contribution to journalArticle

Surgical Wound Infection
Ovarian Neoplasms
Infection

Postoperative complications following intraoperative radiotherapy in abdominopelvic malignancy: A single institution analysis of 113 consecutive patients

Abdelfatah, E., Page, A., Sacks, J. M., Pierorazio, P. M., Bivalacqua, T., Efron, J., Terezakis, S. A., Gearhart, S. L., Fang, S. H., Safar, B., Pawlik, T. M., Armour, E., Hacker-Prietz, A., Herman, J. & Ahuja, N., Jun 1 2017, In : Journal of Surgical Oncology. 115, 7, p. 883-890 8 p.

Research output: Contribution to journalArticle

Radiotherapy
Neoplasms
Research Ethics Committees
Brachytherapy
Sarcoma

Prognostic and Predictive Clinicopathologic Factors of Squamous Anal Canal Cancer in HIV-Positive and HIV-Negative Patients: Does HAART Influence Outcomes?

Pappou, E. P., Magruder, J. T., Fu, T., Hicks, C., Herman, J. M., Fang, S. H., Wick, E. C., Safar, B., Gearhart, S. L. & Efron, J., Sep 25 2017, (Accepted/In press) In : World Journal of Surgery. p. 1-8 8 p.

Research output: Contribution to journalArticle

Anus Neoplasms
Highly Active Antiretroviral Therapy
Anal Canal
HIV
Squamous Cell Carcinoma

Racial and Socioeconomic Differences Manifest in Process Measure Adherence for Enhanced Recovery After Surgery Pathway

Leeds, I. L., Alimi, Y., Hobson, D. R., Efron, J., Wick, E. C., Haut, E. & Johnston, F., Oct 1 2017, In : Diseases of the Colon and Rectum. 60, 10, p. 1092-1101 10 p.

Research output: Contribution to journalArticle

Process Assessment (Health Care)
Social Class
Quality Improvement
Population
Length of Stay

Routine Pouchoscopy Prior to Ileostomy Takedown May Not Be Necessary in Patients with Chronic Ulcerative Colitis

Cai, J. X., Barrow, J., Parian, A., Brant, S. R., Dudley-Brown, S., Efron, J., Fang, S. H., Gearhart, S. L., Marohn, M., Safar, B., Truta, B., Wick, E. & Lazarev, M., Jun 9 2017, (Accepted/In press) In : Digestive Diseases.

Research output: Contribution to journalArticle

Ileostomy
Ulcerative Colitis
Colonic Pouches
Pouchitis
Inflammatory Bowel Diseases

The Effect of Frailty Index on Early Outcomes after Combined Colorectal and Liver Resections

Chen, S. Y., Stem, M., Cerullo, M., Gearhart, S. L., Safar, B., Fang, S. H., Weiss, M. J., He, J. & Efron, J., Dec 5 2017, (Accepted/In press) In : Journal of Gastrointestinal Surgery. p. 1-10 10 p.

Research output: Contribution to journalArticle

Liver
Morbidity
Hepatectomy
Rectum
Colon

The independent effect of cancer on outcomes: A potential limitation of surgical risk prediction

Leeds, I. L., Canner, J. K., Efron, J., Ahuja, N., Haut, E., Wick, E. C. & Johnston, F., 2017, (Accepted/In press) In : Journal of Surgical Research.

Research output: Contribution to journalArticle

Neoplasms
Quality Improvement
Mortality
Anatomic Models
Gastrointestinal Neoplasms

Variations in hospitals costs for surgical procedures: inefficient care or sick patients?

Gani, F., Hundt, J., Daniel, M., Efron, J., Makary, M. A. & Pawlik, T. M., Jan 1 2017, In : American Journal of Surgery. 213, 1, p. 1-9 9 p.

Research output: Contribution to journalArticle

Hospital Costs
Costs and Cost Analysis
Comorbidity
Cost Control
Surgical Specialties
2016

Bundled payments for surgical colectomy among medicare enrollees: Potential savings vs the need for further reform

Gani, F., Makary, M. A., Wick, E. C., Efron, J., Fang, S. H., Safar, B., Hundt, J. & Pawlik, T. M., May 1 2016, In : JAMA Surgery. 151, 5

Research output: Contribution to journalArticle

Colectomy
Medicare
Hospital Costs
Length of Stay
Diagnosis-Related Groups

Enhanced Recovery after Surgery Pathways and Resident Physicians: Barrier or Opportunity?

Stone, A. B., Leeds, I. L., Efron, J. & Wick, E. C., Oct 1 2016, In : Diseases of the Colon and Rectum. 59, 10, p. 1000-1001 2 p.

Research output: Contribution to journalComment/debate

Colorectal Surgery
Postoperative Care
Internship and Residency
Quality Improvement
Physicians

Genitourinary Considerations in Reoperative and Complex Colorectal Surgery

Althumairi, A. A. & Efron, J., Jun 1 2016, In : Clinics in Colon and Rectal Surgery. 29, 2, p. 145-151 7 p.

Research output: Contribution to journalArticle

Colorectal Surgery
Wounds and Injuries
Urogenital System
Urography
Reoperation

Is enhanced recovery enough for reducing 30-d readmissions after surgery?

Fabrizio, A. C., Grant, M. C., Siddiqui, Z., Alimi, Y., Gearhart, S. L., Wu, C., Efron, J. & Wick, E. C., Dec 1 2016, (Accepted/In press) In : Journal of Surgical Research.

Research output: Contribution to journalArticle

Surgical Wound Infection
Patient Transfer
Length of Stay
Patient Readmission
Colorectal Surgery

Outcomes of abdominoperineal resection for management of anal cancer in HIV-positive patients: A national case review

Leeds, I. L., Alturki, H., Canner, J. K., Schneider, E. B., Efron, J., Wick, E. C., Gearhart, S. L., Safar, B. & Fang, S. H., Aug 5 2016, In : World Journal of Surgical Oncology. 14, 1, 208.

Research output: Contribution to journalArticle

Anus Neoplasms
HIV
Length of Stay
Costs and Cost Analysis
Hospitalization

Predictors of Perineal Wound Complications and Prolonged Time to Perineal Wound Healing After Abdominoperineal Resection

Althumairi, A. A., Canner, J. K., Gearhart, S. L., Safar, B., Sacks, J. M. & Efron, J., Feb 23 2016, (Accepted/In press) In : World Journal of Surgery. p. 1-8 8 p.

Research output: Contribution to journalArticle

Wound Healing
Wounds and Injuries
Hypoalbuminemia
Drug Therapy
Smoking
Pelvic Exenteration
Health Care Costs
High-Volume Hospitals
Health Services
Databases

Risk factors for wound complications after abdominoperineal excision: analysis of the ACS NSQIP database

Althumairi, A. A., Canner, J. K., Gearhart, S. L., Safar, B., Fang, S. H., Wick, E. C. & Efron, J., Jul 1 2016, In : Colorectal Disease. 18, 7, p. O260-O266

Research output: Contribution to journalArticle

Quality Improvement
Databases
Wounds and Injuries
Surgical Wound Infection
Operating Rooms

Time to Chemotherapy After Abdominoperineal Resection: Comparison Between Primary Closure and Perineal Flap Reconstruction

Althumairi, A. A., Canner, J. K., Ahuja, N., Sacks, J. M., Safar, B. & Efron, J., Jan 1 2016, In : World Journal of Surgery. 40, 1, p. 225-230 6 p.

Research output: Contribution to journalArticle

Adjuvant Chemotherapy
Drug Therapy
Wound Healing
Wounds and Injuries
Adenocarcinoma
2015

Analysis of fiducials implanted during EUS for patients with localized rectal cancer receiving high-dose rate endorectal brachytherapy

Moningi, S., Walker, A. J., Malayeri, A. A., Rosati, L. M., Gearhart, S. L., Efron, J. E., Wick, E. C., Azad, N. S., Armour, E. P., Le, Y., Herman, J. M. & Shin, E. J., Mar 1 2015, In : Gastrointestinal Endoscopy. 81, 3, p. 765-769 5 p.

Research output: Contribution to journalArticle

Fiducial Markers
Endosonography
Adjuvant Radiotherapy
Neoadjuvant Therapy
Brachytherapy

A Novel Means of Assessing Institutional Adherence to Blood Transfusion Guidelines

Hicks, C., Frank, S. M., Wasey, J. O., Efron, J., Gearhart, S. L., Fang, S. H., Safar, B., Makary, M. A. & Wick, E. C., Nov 1 2015, In : American Journal of Medical Quality. 30, 6, p. 584-590 7 p.

Research output: Contribution to journalArticle

Guideline Adherence
Quality Improvement
Blood Transfusion
Guidelines
Health Facility Size

Benefits of Bowel Preparation Beyond Surgical Site Infection: A Retrospective Study

Althumairi, A. A., Canner, J. K., Pawlik, T. M., Schneider, E., Nagarajan, N., Safar, B. & Efron, J., Dec 31 2015, (Accepted/In press) In : Annals of Surgery.

Research output: Contribution to journalArticle

Surgical Wound Infection
Retrospective Studies
Anti-Bacterial Agents
Colectomy
Anastomotic Leak

Emergency department presentation, admission, and surgical intervention for colonic diverticulitis in the United States

Schneider, E. B., Singh, A., Sung, J., Hassid, B., Selvarajah, S., Fang, S. H., Efron, J. & Lidor, A. O., Aug 1 2015, In : American Journal of Surgery. 210, 2, p. 404-407 4 p.

Research output: Contribution to journalArticle

Colonic Diverticulitis
Hospital Emergency Service
Diverticulitis
Inpatients
Odds Ratio

Multimodal Therapy in the Treatment of Prostate Sarcoma: The Johns Hopkins Experience

Ball, M. W., Sundi, D., Reese, A. C., Meyer, C., Terezakis, S. A., Efron, J., Schoenberg, M. P., Epstein, J. I., Ahuja, N. & Bivalacqua, T., Oct 1 2015, In : Clinical Genitourinary Cancer. 13, 5, p. 435-440 6 p.

Research output: Contribution to journalArticle

Sarcoma
Prostate
Survival
Recurrence
Therapeutics

Optimizing perioperative Crohn's disease management: Role of coordinated medical and surgical care

Bennett, J. L., Ha, C. Y., Efron, J., Gearhart, S. L., Lazarev, M. & Wick, E. C., Jan 28 2015, In : World Journal of Gastroenterology. 21, 4, p. 1182-1188 7 p.

Research output: Contribution to journalArticle

Disease Management
Crohn Disease
Colonoscopy
Tertiary Care Centers
Gastroenterology

Organizational Culture Changes Result in Improvement in Patient-Centered Outcomes: Implementation of an Integrated Recovery Pathway for Surgical Patients

Wick, E. C., Galante, D. J., Hobson, D. B., Benson, A. R., Lee, K. H. K., Berenholtz, S., Efron, J., Pronovost, P. J. & Wu, C. L., Sep 1 2015, In : Journal of the American College of Surgeons. 221, 3, p. 669-677 9 p., 7914.

Research output: Contribution to journalArticle

Organizational Culture
Organizational Innovation
Surgical Wound Infection
Quality Improvement
Length of Stay

Patient symptomatology in anal dysplasia

Hicks, C., Wick, E. C., Leeds, I. L., Efron, J., Gearhart, S. L., Safar, B. & Fang, S. H., Jun 1 2015, In : JAMA Surgery. 150, 6, p. 563-569 7 p.

Research output: Contribution to journalArticle

Pain
Odds Ratio
Biopsy
Physical Examination
HIV

The role of the radial margin further call for standardization of colon cancer care

Efron, J., Sep 1 2015, In : JAMA Surgery. 150, 9, p. 898 1 p.

Research output: Contribution to journalArticle

Colectomy
Neoplasm Staging
Colonic Neoplasms
2014

Abdominal-Versus thigh-based reconstruction of perineal defects in patients with cancer

Pang, J., Broyles, J. M., Berli, J., Buretta, K., Shridharani, S. M., Rochlin, D. H., Efron, J. & Sacks, J. M., 2014, In : Diseases of the Colon and Rectum. 57, 6, p. 725-732 8 p.

Research output: Contribution to journalArticle

Rectus Abdominis
Thigh
Myocutaneous Flap
Neoplasms
Length of Stay