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Dive into the research topics where Mohsen Shabahang is active.

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Featured researches published by Mohsen Shabahang.


Journal of Trauma-injury Infection and Critical Care | 2015

Same-day combined endoscopic retrograde cholangiopancreatography and cholecystectomy: Achievable and minimizes costs.

Jeffrey Wild; Younus Mj; Denise Torres; Kenneth A. Widom; Diane Leonard; James Dove; Marie A. Hunsinger; Joseph A. Blansfield; Diehl Dl; William E. Strodel; Mohsen Shabahang

BACKGROUND It is estimated that choledocholithiasis is present in 5% to 20% of patients at the time of laparoscopic cholecystectomy (LC). Several European studies have found decreased length of stay (LOS) when performing LC and intraoperative endoscopic retrograde cholangiopancreatography (ERCP) on the same day for choledocholithiasis. In the United States, common bile duct stones are usually managed preoperatively and typically on a day separate from the day LC was performed. Our aim was to evaluate LOS and total hospital cost for separate-day versus same-day ERCP/cholecystectomy. METHODS This was a retrospective study of patients undergoing ERCP and cholecystectomy during the same admission for the management of choledocholithiasis from 2010 to 2014 at Geisinger Medical Center. The separate-day group underwent ERCP at least 1 day before cholecystectomy and often underwent two separate anesthesia events, while the same-day group had ERCP and cholecystectomy performed on the same day under one general anesthesia event. The primary outcome measured was LOS. RESULTS The study population included 240 patients. There were 175 patients in the separate-day group and 65 patients in the same-day group. Median age was similar between the two groups. The separate-day group had a median of one minor comorbidity compared with zero within the same-day group using the Charlson Comorbidity Index. Overall, LOS for the separate-day group was 5 days compared with 3 days in the same-day group (p < 0.0001). There was no difference in conversion rates to open cholecystectomy between the two groups (14% in the separate-day vs. 12% in the same-day group). Total median hospital cost for the separate-day group was


Journal of Trauma-injury Infection and Critical Care | 2016

Severe complicated Clostridium difficile infection: Can the UPMC proposed scoring system predict the need for surgery?

Michelle Julien; Jeffrey Wild; Joseph Blansfield; Mohsen Shabahang; Kristen Halm; Paul Meade; James Dove; Marcus Fluck; Marie A. Hunsinger; Diane Leonard

102,537 compared with


Journal of Craniofacial Surgery | 2016

Utility of Prophylactic Antibiotics in Nonoperative Facial Fractures.

Mahdi Malekpour; Kelly Bridgham; Nina Neuhaus; Kenneth A. Widom; Megan Rapp; Diane Leonard; Susan Baro; James Dove; Marie A. Hunsinger; Joseph Blansfield; Mohsen Shabahang; Denise Torres; Jeffrey Wild

90,269 in the same-day group (p < 0.0001). CONCLUSION Same-day ERCP and cholecystectomy is feasible and minimizes costs. Same-day procedures decreased hospital LOS by 2 days and had approximately


Academic Medicine | 2016

Professionalism in the Twilight Zone: A Multicenter, Mixed-Methods Study of Shift Transition Dynamics in Surgical Residencies

James E. Coverdill; Adnan Alseidi; David C. Borgstrom; Daniel L. Dent; Russell Dumire; Johnathan Fryer; Thomas H. Hartranft; Steven B. Holsten; M. Timothy Nelson; Mohsen Shabahang; Stanley R. Sherman; Paula M. Termuhlen; Randy J. Woods; John D. Mellinger

12,000 in cost savings. Future goals include a multidisciplinary protocol to study outcomes in larger numbers. LEVEL OF EVIDENCE Therapeutic study, level IV. Economic study, level III.


Journal of Surgical Education | 2015

The Predictive Value of Application Variables on the Global Rating of Applicants to a General Surgery Residency Program

Christine Sharp; Andrea Plank; James Dove; Nicole Woll; Marie A. Hunsinger; Morgan A; Joseph A. Blansfield; Mohsen Shabahang

INTRODUCTION Clostridium difficile infection (CDI) is one of the most common health care–associated infections, and it continues to have significant morbidity and mortality. The onset of fulminant colitis often requires total abdominal colectomy with ileostomy, which has a mortality rate of 35% to 57%. University of Pittsburgh Medical Center (UPMC) developed a scoring system for severity and recommended surgical consultation for severe complicated disease. The aim of this study was to evaluate if the UPMC-proposed scoring system for severe complicated CDI can predict the need for surgical intervention. METHODS This is a retrospective review of all patients who developed severe complicated CDI at Geisinger Medical Center between January 2007 and December 2012 as defined by the UPMC scoring system. Main outcomes were the need for surgical intervention and 30-day mortality. RESULTS Eighty-eight patients had severe complicated CDI based on the UPMC scoring system. Fifty-nine patients (67%) required surgery and 29 did not. All patients had a diagnosis of CDI as shown by positive toxin assays. There was no difference between the groups with respect to age, sex, body mass index, or comorbidities. When comparing the surgical group to the nonsurgical cohort, the surgical cohort averaged 20 points on the scoring system compared to 9 in the nonoperative cohort. In patients with severe complicated CDI, 15 or more points predicted the need for surgery 75% of the time. Forty-two percent of the surgical cohort had respiratory failure requiring mechanical ventilation compared to 0% in the nonsurgical cohort (p < 0.0001). Forty-nine percent of the surgical cohort required vasopressors for septic shock before surgery compared to 0% in the nonsurgical cohort (p < 0.0001). Acute kidney injury was present in 92% of the surgical cohort versus 72% within the nonsurgical cohort (p = 0.026). Seventy-six percent of the surgical patients were admitted to the ICU before surgery. Within the nonsurgical cohort, only 24% of patients required ICU stay during admission. Overall, 30-day mortality in the surgical cohort was 30%, and there was no mortality in the nonsurgical cohort. CONCLUSIONS The UPMC scoring system for severe complicated CDI can help us predict patients who need a surgical consult and the need for surgical intervention. In patients with severe complicated CDI, evidence of end-organ failure predicts surgical intervention. LEVEL OF EVIDENCE Prognostic study, level III; therapeutic study, level IV.


Journal of Surgical Education | 2017

Characterizing the Relationship Between Surgical Resident and Faculty Perceptions of Autonomy in the Operating Room

Katelyn A. Young; Samantha M. Lane; John E. Widger; Nina Neuhaus; James Dove; Marcus Fluck; Marie A. Hunsinger; Joseph A. Blansfield; Mohsen Shabahang

AbstractFacial fractures are commonly managed nonoperatively. Patients with facial fractures involving sinus cavities commonly receive 7 to 10 days of prophylactic antibiotics, yet no literature exists to support or refute this practice. The aim of this study was to compare the administration and duration of antibiotic prophylaxis on the incidence of soft tissue infection in nonoperative facial fractures. A total number of 289 patients who were admitted to our level I trauma center with nonoperative facial fractures from the beginning of 2012 to the end of 2014 were studied. Patients were categorized into 3 groups: no antibiotic prophylaxis, short-term antibiotic prophylaxis (1–5 days), and long-term antibiotic prophylaxis (>5 days). The primary outcome was the incidence of facial soft tissue infection and Clostridium difficile colitis. Fifty patients received no antibiotic prophylaxis. Sixty-three patients completed a short course of antibiotic prophylaxis and 176 patients received long-term antibiotics. Ampicillin/sulbactam, amoxicillin/clavulanic acid, or a combination of both were used in 216 patients. Twenty-three patients received clindamycin due to penicillin allergy. Short and long courses of antibiotic prophylaxis were administered more commonly in patients with concomitant maxillary and orbital fractures (P <0.0001). No mortality was found in any group. Soft tissue infection was not identified in any patient. C. difficile colitis was identified in 1 patient who had received a long course of antibiotic prophylaxis (P = 0.7246). There was no difference in the outcome of patients receiving short-term, long-term, and no antibiotic prophylaxis. Prospective randomized studies are needed to provide further clinical recommendations.


Journal of Surgical Education | 2016

The Learning Preferences of Applicants Who Interview for General Surgery Residency: A Multiinstitutional Study.

Roger H. Kim; Scott H. Kurtzman; Ashley N. Collier; Mohsen Shabahang

Purpose Duty hours rules sparked debates about professionalism. This study explores whether and why general surgery residents delay departures at the end of a day shift in ways consistent with shift work, traditional professionalism, or a new professionalism. Method Questionnaires were administered to categorical residents in 13 general surgery programs in 2014 and 2015. The response rate was 76% (N = 291). The 18 items focused on end-of-shift behaviors and the frequency and source of delayed departures. Follow-up interviews (N = 39) examined motives for delayed departures. The results include means, percentages, and representative quotations from the interviews. Results A minority (33%) agreed that it is routine and acceptable to pass work to night teams, whereas a strong majority (81%) believed that residents exceed work hours in the name of professionalism. Delayed departures were ubiquitous: Only 2 of 291 residents were not delayed for any of 13 reasons during a typical week. The single most common source of delay involved a desire to avoid the appearance of dumping work on fellow residents. In the interviews, residents expressed a strong reluctance to pass work to an on-call resident or night team because of sparse night staffing, patient ownership, an aversion to dumping, and the fear of being seen as inefficient. Conclusions Resident behavior is shaped by organizational and cultural contexts that require attention and reform. The evidence points to the stunted development of a new professionalism, little role for shift-work mentalities, and uneven expression of traditional professionalism in resident behavior.


Journal of Surgical Education | 2017

Ten Year Projections for US Residency Positions: Will There be Enough Positions to Accommodate the Growing Number of U.S. Medical School Graduates?

Sarah Hayek; Samantha M. Lane; Marcus Fluck; Marie A. Hunsinger; Joseph A. Blansfield; Mohsen Shabahang

OBJECTIVE Selection of applicants to residency programs can involve a great deal of variability. The purpose of this study was to determine the relationship between different subjective and objective application variables and the global rating score (GRS) of applicants to a general surgery residency program. DESIGN This was a retrospective analysis of data collected from the Electronic Residency Application Service on 188 applicants to a general surgery residency program from 2010 to 2013. Subjective variables including letters of recommendation (LORs), personal statements (PSs), and volunteer work were blindly assessed by raters using a literature-based method of evaluation. Objective data included several variables, such as United States Medical Licensing Examination (USMLE) scores. Each applicant received a GRS, which was a faculty-given numerical value reflecting both interview performance and overall application strength. The effect of subjective and objective variables on the GRS was determined. SETTING The Geisinger Medical Center, a rural moderate-sized general surgery residency program. RESULTS Of all the application variables examined, bivariate analysis indicated that having no prior residency (p = 0.0023), prior medical work (p = 0.0329), higher USMLE Step II Clinical Knowledge scores (p = 0.0021), higher overall PS score (p = 0.0125) and PS Written Expression score (p = 0.0007), and LORs from surgeons in leadership positions (p = 0.0029) have a significant (p < 0.05) effect on the GRS. Of these factors, USMLE Step II Clinical Knowledge score, PS Written Expression score, no prior residency, prior medical work, and LORs from surgeon in lead position had a significant effect on GRS based on multivariate stepwise regression analysis. CONCLUSIONS Our analysis identifies specific surgical resident applicant variables that are predictive of the GRS. Interestingly, most of these factors were objective. This may allow for the development of a more quantitative tool for selection of applicants.


Surgery | 2018

Learning preferences of surgery residents: A multi-institutional study

Roger H. Kim; Rebecca K. Viscusi; Ashley N. Collier; Marie A. Hunsinger; Mohsen Shabahang; George M. Fuhrman; James R. Korndorffer

OBJECTIVE Characterize the concordance among faculty and resident perceptions of surgical case complexity, resident technical performance, and autonomy in a diverse sample of general surgery procedures using case-specific evaluations. DESIGN A prospective study was conducted in which a faculty surgeon and surgical resident independently completed a postoperative assessment examining case complexity, resident operative performance (Milestone assessment) and autonomy (Zwisch model). Pearson correlation coefficients (r) reaching statistical significance (p < 0.05) were further classified as moderate (r ≥ 0.40), strong (r ≥ 0.60), or very strong (r ≥ 0.80). SETTING This study was conducted in the General Surgery Residency Program at an academic tertiary care facility (Geisinger Medical Center, Danville, PA). PARTICIPANTS Participants included 6 faculty surgeons, in addition to 5 postgraduate year (PGY) 1, 6 midlevel (PGY 2-3), and 4 chief (PGY 4-5) residents. RESULTS In total, 75 surgical cases were analyzed. Midlevel residents accounted for the highest number of cases (35, 46.6%). Overall, faculty and resident perceptions of case complexity demonstrated a strong correlation (r = 0.76, p < 0.0001). Technical performance scores were also strongly correlated (r = 0.66, p < 0.0001), whereas perceptions of autonomy demonstrated a moderate correlation (r = 0.56, p < 0.0001). Subgroup analysis revealed very strong correlations among faculty perceptions of case complexity and the perceptions of PGY 1 (r = 0.80, p < 0.0001) and chief residents (r = 0.82, p < 0.0001). All other intergroup correlations were strong with 2 notable exceptions as follows: midlevel and chief residents failed to correlate with faculty perceptions of autonomy and operative performance, respectively. CONCLUSIONS General surgery residents generally demonstrated high correlations with faculty perceptions of case complexity, technical performance, and operative autonomy. This generalized accord supports the use of the Milestone and Zwisch assessments in residency programs. However, discordance among perceptions of midlevel resident autonomy and chief resident operative performance suggests that these trainees may need more direct communication from the faculty.


Journal of Robotic Surgery | 2018

Laparoscopic versus robotic adrenalectomy: a review of the national inpatient sample

Sarah Samreen; Marcus Fluck; Marie A. Hunsinger; Jeffrey Wild; Mohsen Shabahang; Joseph A. Blansfield

BACKGROUND Learning styles theory posits that learners have distinct preferences for how they assimilate new information. The VARK model categorizes learners based on combinations of 4 learning preferences: visual (V), aural (A), read/write (R), and kinesthetic (K). A previous single institution study demonstrated that the VARK preferences of applicants who interview for general surgery residency are different from that of the general population and that learning preferences were associated with performance on standardized tests. This multiinstitutional study was conducted to determine the distribution of VARK preferences among interviewees for general surgery residency and the effect of those preferences on United States Medical Licensing Examination (USMLE) scores. METHODS The VARK learning inventory was administered to applicants who interviewed at 3 general surgery programs during the 2014 to 2015 academic year. The distribution of VARK learning preferences among interviewees was compared with that of the general population of VARK respondents. Performance on USMLE Step 1 and Step 2 Clinical Knowledge was analyzed for associations with VARK learning preferences. Chi-square, analysis of variance, and Dunnetts test were used for statistical analysis, with p < 0.05 considered statistically significant. RESULTS The VARK inventory was completed by a total of 140 residency interviewees. Sixty-four percent of participants were male, and 41% were unimodal, having a preference for a single learning modality. The distribution of VARK preferences of interviewees was different than that of the general population (p = 0.02). By analysis of variance, there were no overall differences in USMLE Step 1 and Step 2 Clinical Knowledge scores by VARK preference (p = 0.06 and 0.21, respectively). However, multiple comparison analysis using Dunnetts test revealed that interviewees with R preferences had significantly higher scores than those with multimodal preferences on USMLE Step 1 (239 vs. 222, p = 0.02). CONCLUSION Applicants who interview for general surgery residency have a different pattern of VARK preferences than that of the general population. Interviewees with preferences for read/write learning modalities have higher scores on the USMLE Step 1 than those with multimodal preferences. Learning preferences may have impact on residency applicant selection and represents a topic that warrants further investigation.

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James Dove

Geisinger Medical Center

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Jeffrey Wild

Geisinger Medical Center

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Marcus Fluck

Geisinger Medical Center

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Nicole Woll

Geisinger Medical Center

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Denise Torres

Geisinger Medical Center

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Tania K. Arora

Geisinger Medical Center

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Diane Leonard

Geisinger Medical Center

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