Try a new search

Format these results:

Searched for:

person:kleinm15

in-biosketch:true

Total Results:

26


Hyper-Realistic Advanced Surgical Skills Package with Cut Suit Simulator Improves Trainee Surgeon Confidence in Operative Trauma

Chao, Edward; Liveris, Anna; Yusaf, Tricia; Batista, Gabriela; Diaz, Dajelyn; Cruz, Juan; Lee, Alex-Sungbae; Pohlman, Jessica; Andrews, Kiah; Bukur, Marko; Teperman, Sheldon; Klein, Michael J
BACKGROUND:Adequate exposure to operative trauma is not uniform across surgical residencies, and therefore it can be challenging to achieve competency during residency alone. This study introduced the Cut Suit surgical simulator with an Advanced Surgical Skills Package, which replicates traumatic bleeding and organ injury, into surgery resident training across multiple New York City trauma centers. METHODS:Trainees from 6 ACS-verified trauma centers participated in this prospective, observational trial. Groups of 3-5 trainees (post-graduate year 1-6) from 6 trauma centers within the largest public healthcare network in the U.S. participated. Residents were asked to perform various operative tasks including rescucitative thoracotomy, exploratory laprotomy, splenectomy, hepatorrhaphy, retroperitoneal exploration, and small bowel resection on a severely injured simulated patient. Pre- and post-course surveys were used to evaluate trainees' confidence performing these procedures and quizzes were used to evaluate participants' knowledge acquisition after the simulation. RESULTS:< .01). There was a significant increase in the proportion of residents reporting being "more confident" or "most confident" managing all procedures performed. Post-activity quiz scores improved by an average of 20.4 points. DISCUSSION/CONCLUSIONS:The Cut Suit surgical simulator with ASSP is a realistic and useful adjunct in training surgeons to manage complex operative trauma.
PMID: 36450271
ISSN: 1555-9823
CID: 5372432

Changes in US Mass Shooting Deaths Associated With the 1994-2004 Federal Assault Weapon Ban: Analysis of Open-Source Data

DiMaggio, Charles; Avraham, Jacob; Berry, Cherisse; Bukur, Marko; ScD, Justin Feldman; Klein, Michael; Shah, Noor; Tandon, Manish; Frangos, Spiros
BACKGROUND:A federal assault weapons ban has been proposed as a way to reduce mass shootings in the U.S. (U.S). The Federal Assault Weapons Ban (A.W.B.) of 1994 made the manufacture and civilian use of a defined set of automatic and semi-automatic weapons and large capacity magazines illegal. The ban expired in 2004. The period from 1994 to 2004 serves as a single-arm pre-post observational study to assess the effectiveness of this policy intervention. METHODS:Mass shooting data for 1981 to 2017 were obtained from three well-documented, referenced, and open-source sets of data, based on media reports. We calculated the yearly rates of mass shooting fatalities as a proportion of total firearm homicide deaths and per U.S. POPULATION/METHODS:We compared the 1994-2004 federal ban period to non-ban periods, using simple linear regression models for rates and a Poison model for counts with a year variable to control for trend. The relative effects of the ban period were estimated with odds ratios. RESULTS:Assault rifles accounted for 430 or 85.8% of the total 501 mass-shooting fatalities reported (95% CI 82.8, 88.9) in 44 mass-shooting incidents. Mass shootings in the U.S. accounted for an increasing proportion of all firearm-related homicides (coefficient for year = 0.7, p = 0.0003), with increment in year alone capturing over a third of the overall variance in the data (Adjusted R-squared = 0.3). In a linear regression model controlling for yearly trend, the federal ban period was associated with a statistically significant 9 fewer mass shooting related deaths per 10,000 firearm homicides (p = 0.03). Mass-shooting fatalities were 70% less likely to occur during the federal ban period (Relative Rate = 0.30, 95% CI 0.22,0.39). CONCLUSIONS:Mass-shooting related homicides in the U.S. were reduced during the years of the federal assault weapons ban of 1994 to 2004. STUDY TYPE/METHODS:Observational LEVEL OF EVIDENCE: III/IV.
PMID: 30188421
ISSN: 2163-0763
CID: 3271452

Acute Care Surgeons' Response to the COVID-19 Pandemic: Observations and Strategies From the Epicenter of the American Crisis

Klein, Michael J; Frangos, Spiros G; Krowsoski, Leandra; Tandon, Manish; Bukur, Marko; Parikh, Manish; Cohen, Steven M; Carter, Joseph; Link, Robert Nathan; Uppal, Amit; Pachter, Hersch Leon; Berry, Cherisse
PMID: 32675500
ISSN: 1528-1140
CID: 4574222

Bridging the Learning Gap: Surgery Trainees Hone Vascular Trauma Skills via High-Fidelity Simulation

Chernetskii, Nikita; Chao, Edward; Grin, Eric A.; Decker, Christopher; Klein, Michael J.
ORIGINAL:0017686
ISSN: 0022-4804
CID: 5881102

Utility and Timing of Upper Gastrointestinal Contrast Radiography Post-Graham (Omental) Patch Repair: A Retrospective Study

Chernetskii, Nikita; Grin, Eric A.; Klein, Michael J.
ORIGINAL:0017685
ISSN: 2278-5388
CID: 5881092

State assault weapons bans are associated with fewer fatalities: analysis of US county mass shooting incidents (2014-2022)

DiMaggio, Charles J; Klein, Michael; Young, Claire; Bukur, Marko; Berry, Cherisse; Tandon, Manish; Frangos, Spiros
BACKGROUND:The need for evidence to inform interventions to prevent mass shootings (MS) in the USA has never been greater. METHODS:Data were abstracted from the Gun Violence Archive, an independent online database of US gun violence incidents. Descriptive analyses consisted of individual-level epidemiology of victims, suspected shooters and weapons involved, trends and county-level choropleths of population-level incident and fatality rates. Counties with and without state-level assault weapons bans (AWB) were compared, and we conducted a multivariable negative binomial model controlling for county-level social fragmentation, median age and number of gun-related homicides for the association of state-level AWB with aggregate county MS fatalities. RESULTS:73.3% (95% CI 72.1 to 74.5) of victims and 97.2% (95% CI 96.3 to 98.3) of shooters were males. When compared with incidents involving weapons labelled 'handguns', those involving a weapon labelled AR-15 or AK-47 were six times more likely to be associated with case-fatality rates greater than the median (OR=6.1, 95% CI 2.3 to 15.8, p<0.00001). MS incidents were significantly more likely to occur on weekends and during summer months. US counties in states without AWB had consistently higher MS rates throughout the study period (p<0.0001), and the slope for increase over time was significantly lower in counties with AWB (beta=-0.11, p=0.01). In a multivariable negative binomial model, counties in states with AWB were associated with a 41% lower incidence of MS fatalities (OR=0.58, 95% CI 0.37 to 0.97, p=0.02). CONCLUSIONS:Counties located in states with AWB were associated with fewer MS fatalities between 2014 and 2022.
PMID: 39179365
ISSN: 1475-5785
CID: 5681252

Novel Use of the ECG-gated Cardiac CT Angiogram for Diagnosis and Imaging of Pericardial Rupture with Cardiac Herniation: Case Report and Review of Management [Case Report]

Chernetskii, Nikita; Decker, Christopher S; Gozansky, Elliot K; Shah, Rajiv R; Klein, Michael J
ORIGINAL:0017516
ISSN: 2278-5388
CID: 5774402

A Call to Action to Train Underrepresented Minorities in Surgical Subspecialties and Fellowships

Escobar, Natalie; Keshinro, Ajaratu; Hambrecht, Amanda; Frangos, Spiros; Berman, Russell S; DiMaggio, Charles; Joseph, Kathie-Ann; Bukur, Marko; Klein, Michael J; Ude-Welcome, Akuezunkpa; Berry, Cherisse
BACKGROUND:With each succession along the surgical career pathway, from medical school to faculty, the percentage of those who identify as underrepresented in medicine (URiM) decreases. We sought to evaluate the demographic trend of surgical fellowship applicants, matriculants, and graduates over time. STUDY DESIGN:The Electronic Residency Application Service and the Graduate Medical Education Survey for general surgery fellowships in colorectal surgery, surgical oncology, pediatric surgery, thoracic surgery, and vascular surgery were retrospectively analyzed (2005 to 2020). The data were stratified by race and gender, descriptive statistics were performed, and time series were evaluated. Race/ethnicity groups included White, Asian, other, and URiM, which is defined as Black/African American, Hispanic/Latino(a), Alaskan or Hawaiian Native, and Native American. RESULTS:From 2005 to 2020, there were 5,357 Electronic Residency Application Service applicants, 4,559 matriculants, and 4,178 graduates to surgery fellowships. Whites, followed by Asians, represented the highest percentage of applicants (62.7% and 22.3%, respectively), matriculants (65.4% and 23.8% respectively), and graduates (65.4% and 24.0%, respectively). For URiMs, the applicants (13.4%), matriculants (9.1%), and graduates (9.1%) remained significantly low (p < 0.001). When stratified by both race and gender, only 4.6% of the applicants, 2.7% of matriculants, and 2.4% of graduates identified as both URiM and female compared to White female applicants (20.0%), matriculants (17.9%), and graduates (16.5%, p < 0.001). CONCLUSIONS:Significant disparities exist for URiMs in general surgery subspecialty fellowships. These results serve as a call to action to re-examine and improve the existing processes to increase the number of URiMs in the surgery subspecialty fellowship training pathway.
PMID: 36946471
ISSN: 1879-1190
CID: 5525062

Disparity in Transport of Critically Injured Patients to Trauma Centers: Analysis of the National Emergency Medical Services Information System (NEMSIS)

Escobar, Natalie; DiMaggio, Charles; Frangos, Spiros G; Winchell, Robert J; Bukur, Marko; Klein, Michael J; Krowsoski, Leandra; Tandon, Manish; Berry, Cherisse
BACKGROUND:Patient morbidity and mortality decrease when injured patients meeting CDC Field Triage Criteria (FTC) are transported by emergency medical services (EMS) directly to designated trauma centers (TCs). This study aimed to identify potential disparities in the transport of critically injured patients to TCs by EMS. STUDY DESIGN/METHODS:We identified all patients in the National EMS Information System (NEMSIS) database in the National Association of EMS State Officials East region from January 1, 2018, to December 31, 2019, with a final prehospital acuity of critical or emergent by EMS. The cohort was stratified into patients transported to TCs or non-TCs. Analyses consisted of descriptive epidemiology, comparisons, and multivariable logistic regression analysis to measure the association of demographic features, vital signs, and CDC FTC designation by EMS with transport to a TC. RESULTS:A total of 670,264 patients were identified as sustaining an injury, of which 94,250 (14%) were critically injured. Of those 94,250 critically injured, 56.0% (52,747) were transported to TCs. Among all critically injured women (n = 41,522), 50.4% were transported to TCs compared with 60.4% of critically injured men (n = 52,728, p < 0.001). In a multivariable logistic regression model, critically injured women were 19% less likely to be taken to a TC compared with critically injured men (OR 0.81, 95% CI 0.71-0.93, p = 0.003). CONCLUSIONS:Critically injured female patients are less likely to be transported to TCs when compared with their male counterparts. Performance improvement processes that assess EMS compliance with field triage guidelines should explicitly evaluate for sex-based disparities. Further studies are warranted.
PMID: 35703965
ISSN: 1879-1190
CID: 5236672

Acute Appendicitis During The COVID-19 Pandemic: A Multicenter, Retrospective Analysis From The US Epicenter

Tamirian, Richard; Klein, Michael; Chui, Patricia; Park, Julia; Frangos, Spiros; Shah, Paresh; Malino, Cris M K
BACKGROUND:Acute appendicitis (AA) is the most common surgical emergency, with a relatively stable yearly incidence. During the first wave of the COVID-19 pandemic, as New York City (NYC) emerged as the US epicenter, hospitals saw a marked reduction in patients presenting with non-COVID-related diseases. The objective of this study was to characterize the effects of the pandemic on the incidence, presentation, and management of AA. METHODS:A retrospective analysis of patients with AA who presented to two academic medical centers during the NYC COVID peak (March 22nd-May 31st, 2020) was performed. This group was compared to a control cohort presenting during the same period in 2019. Primary outcomes included the incidence of AA, complicated disease, and management. Secondary outcomes included duration of symptoms, hospital length of stay, and complication rates. Statistical analyses were performed using Mann-Whitney U, Chi-square, and Fisher's exact tests. RESULTS:< .02). Hospital length of stay and complication rates were similar between years. DISCUSSION/CONCLUSIONS:Significantly fewer AA patients presented during the initial phase of the pandemic. Patients presented later, which may have contributed to a higher proportion of complicated disease. Surgeons were also more likely to treat uncomplicated AA nonoperatively than they were prior. Further research is needed to understand the long-term consequences of these changes.
PMID: 35599614
ISSN: 1555-9823
CID: 5236402