Outcomes of ventriculoperitoneal shunt placement with or without laparoscopic assistance: An analysis of the national inpatient sample.

Background: Ventriculoperitoneal shunt (VPS) can be placed solely by a neurosurgeon often via an open-laparotomy approach, or laparoscopically as a collaborative effort between a neurosurgeon and a general surgeon. Prior studies have shown conflicting results when examining outcomes regarding infection, revision rate, hospital charges, length of stay, and mortality between the open mini-laparotomy and the laparoscopic approaches. Objective: The current study uses the National Inpatient Sample (NIS) to compare outcomes of open mini-laparotomy vs. laparoscopic collaborative approach in VPS placement. Methods: We performed a retrospective database study of the NIS from October 2015-December 2017 utilizing International Classification of Diseases, 10th Revision coding to identify all cases of VPS placement. All analyses accounted for the sampling design of the NIS. Results: A total of 6580 cases (4969 with open mini-laparotomy approach and 1611 with laparoscopic collaborative approach) met inclusion criteria. Hospital charges, infection rates, and revision rates were similar between approaches. There were no significant differences in length of stay, mortality, or complication rates between the two approaches. Conclusion: The collaborative, laparoscopic approach to VPS placement has similar outcomes and is non-inferior to the traditional open mini-laparotomy approach.

Hypoalbuminemia improves the ACS-NSQIP surgical risk calculator for gastrectomy.

BACKGROUND: The ACS-NSQIP Surgical Risk Calculator (SRC) is used to predict surgical outcomes, but its accuracy in gastrectomy has been questioned.1,2 We investigated if adding hypoalbuminemia enhances its predictive ability in gastrectomy. METHODS: We identified gastrectomy patients from the ACS-NSQIP database from 2005 to 2019. We constructed pairs of logistic regression models: one with the existing 21 preoperative risk factors from the SRC and another with the addition of hypoalbuminemia. We evaluated improvement using Likelihood Ratio Test (LRT), Brier scores, and c-statistics. RESULTS: Of 18,070 gastrectomy patients, 34.5 â€‹% had hypoalbuminemia. Hypoalbuminemia patients had 2.34 higher odds of mortality and 1.79 higher odds of morbidity. Adding hypoalbuminemia to the RC model statistically improved predictions for mortality, cumulative morbidity, pulmonary, renal, and wound complications (LRT p â€‹< â€‹0.001). It did not improve predictions for cardiac complications (LRT p â€‹= â€‹0.11) CONCLUSION: Hypoalbuminemia should be considered as an additional variable to the ACS-NSQIP SRC for gastrectomy.

The Association of Mental Illness With Outcomes of Emergency Surgery for Bowel Obstruction.

INTRODUCTION: Bowel obstruction is one of the most common surgical emergencies. The management of SBO is variable and influenced by numerous confounding factors. Recent studies have identified mental health as a health disparity that affects surgical outcomes. We aim to assess whether mental illness is a health disparity and its association with postoperative complications and secondary outcomes for bowel obstruction in Emergency General Surgery (EGS). METHODS: This was a retrospective study utilizing the National Inpatient Sample. Individuals aged 18-64 who underwent emergency adehesiolysis or bowel resection from 2015 to 2017 were identified. Postoperative complications, in-hospital mortality, length of stay, and total cost for surgical patients with and without mental illness were recorded. Univariate and multivariate analyses were used to evaluate the association between mental health and bowel obstruction. RESULTS: 20,574 patients who underwent surgery for bowel obstruction were identified. 3756 of these patients had mental illness and 16,998 patients did not. Patients with mental illness did not have significantly worse outcomes compared to patients without mental illness. Among 3576 patients with mental illness, sex, race, patient location, insurance, location/teaching status of hospital, hospital control and procedure type were significant predictors of prolonged length of stay, higher cost, and increased postoperative complications. CONCLUSIONS: Mental health does not appear to be a health disparity in outcomes for bowel obstruction procedures. However, the intersection of mental health with race and insurance status predicts worse outcomes. This essential area should be further explored to determine how marginalized populations are affected in emergency surgical care.

Enhanced Risk Stratification for Short-Term Complications Following Vertebral Augmentation for Osteoporotic Vertebral Compression Fractures.

BACKGROUND: For patients with back pain from osteoporotic vertebral compression fractures (VCFs), vertebral augmentation remains the most utilized surgical intervention. Previous studies report 30-day readmission and mortality rates of up to 10% and 2%, respectively. These studies, however, have included patients with pathologic fractures and combined patients in different admission settings. We undertook the current study to address such shortcomings, which make risk stratification and appropriate counseling difficult. METHODS: Four consecutive years of the National Surgical Quality Improvement Program database were queried. Patients who underwent vertebral augmentation for osteoporotic VCFs were divided into 3 groups: (1) outpatient group (defined as patients with same-day discharge), (2) inpatient group (defined as those who were admitted postoperatively), and (3) preprocedure hospitalized group (defined as those who were already inpatient or were at acute/intermediate care facilities and transferred). Postoperative 30-day complications and readmission rates were compared between different groups and examined using multivariate analyses. RESULTS: A total of 1023 patients underwent outpatient surgery; 503 were admitted on the day of surgery; and 149 patients were already in-hospital or were transferred from other facility. Mortality rates were 0.68%, 0.60%, and 2.68%, and readmission rates were 6.26%, 6.76%, and 12.8%, for outpatient, inpatient, and preprocedure hospitalization cohorts, respectively. Multivariate analyses identified preprocedure hospitalization as an independent risk factor for urinary tract infection (UTI; OR = 3.98, 95% CI = 1.41-11.20, P = 0.028), pneumonia (OR = 19.69, 95% CI = 3.81-101.65, P < 0.001), readmission (OR = 1.86, 95% CI = 1.06-3.26, P = 0.032), and mortality (OR = 4.49, 95% CI = 1.22-16.53, P = 0.024). CONCLUSION: Our findings suggest that published rates of complications and mortality are substantially impacted by the cohort of patients who are already hospitalized or transferred from other facilities. Such patients are at a higher risk of UTI, pneumonia, readmission, and mortality. Conversely, we show that a relatively healthy patient being offered outpatient same-day augmentation has a readmission risk 40% lower and a mortality risk 3 times lower than previously reported.

The Mediating Effect of Operative Approach on Racial Disparities in Bariatric Surgery Complications.

INTRODUCTION: A laparoscopic approach to bariatric surgeries confers a favorable side-effect profile as compared to an open approach. However, literature regarding the independent association of race with access to and postoperative outcomes in laparoscopic Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (GS) is scarce. MATERIALS AND METHODS: All RYGB and GS cases recorded in American College of Surgeons National Quality Improvement Program data from 2012 to 2020 were subjected to propensity score matching to assess the independent association between Black self-identified race on access to a laparoscopic approach and postoperative complications. Finally, a series of logistic regressions enabled evaluation of the mediating effect of operative approach on racial disparities in postoperative complications. RESULTS: 55,846 cases of RYGB and 94,209 cases of GS were identified. Following propensity score matching, logistic regression identified Black race as an independent predictor of open approach to RYGB (P < 0.001) and GS (P = 0.019). Black patients had increased incidence of any, minor and severe postoperative complications and unplanned readmissions in both RYGB (P < 0.001, P < 0.001, P = 0.0412, and P < 0.001, respectively) and GS (P < 0.001, P < 0.001, P = 0.0037, and P < 0.001, respectively). Open approach to RYGB was identified as a partial mediator of the independent association between Black race and any complication, minor complications, and unplanned readmission. CONCLUSIONS: This methodology identified racial disparities in complications following RYGB and GS. Interestingly, reduced access to a laparoscopic approach mediated racial disparities in complications following RYGB but not GS. Further research might elucidate upstream determinants of health that catalyze these disparities.

Association of Preoperative Blood Transfusion on Postoperative Outcomes in Emergency General Surgery.

INTRODUCTION: Emergency general surgery (EGS) patients often present with anemia, in which preoperative transfusions are performed to mitigate anemia-associated risks. However, transfusions have also been noted to cause worse postoperative outcomes. This study examined how transfusion-associated outcomes vary at different levels of anemia. MATERIALS AND METHODS: The American College of Surgeons National Surgical Quality Improvement Program database from 2005 to 2019 was used to identify patients who had undergone any of 12 major EGS procedures using Current Procedural Terminology codes. Patients were divided into two cohorts based on receipt of preoperative transfusion. Cohorts were subdivided into anemia severity levels and propensity score-matched within each using patient demographic and comorbidity variables. We analyzed 30-day postoperative outcomes, including morbidity, mortality, and return to odds ratio (OR), using univariate Chi-squared tests, Wilcoxon signed-rank tests, and multivariate logistic regression analyses. RESULTS: 595,407 EGS cases were identified. Receiving preoperative transfusion were 44.45% (n = 3058) of severely anemic, 10.94% (n = 9076) of moderately anemic, 1.34% (n = 1370) of mildly anemic, and 0.174% (n = 704) of no anemia patients. Transfusion resulted in an increased overall morbidity in the severe (OR 1.54), moderate (OR 1.50), mild (OR 1.71), and no anemia (OR 1.85) groups. Mortality increased in the moderate (OR 1.27), mild (OR 1.61), and no anemia (OR 1.76) subgroups. In severe anemia, transfusion status and mortality were not significantly associated. CONCLUSIONS: Transfusion is associated with higher morbidity and mortality rates in those with higher hematocrit levels, even after controlling for pre-existing comorbidities. A restrictive transfusion strategy should be considered to avoid risks for those with a hematocrit level more than 24%.

Evaluation of Consumer Health Information Available to Patients on Twitter About Bariatric Surgery.

INTRODUCTION: Patients are increasingly utilizing social media to help them make medical decisions. Previous studies have examined Facebook for the quality of bariatric-related content; however, no research has examined Twitter, a globally favored platform, in this context. The goal of this study is to investigate the quality of bariatric-related content on Twitter that patients use to inform their decisions regarding bariatric surgery. METHODS: Six comprehensive terms were searched on six Twitter accounts for 4 wk. Each keyword generated corresponding tweets that were classified as being either informational or noninformational. The top ten informational posts for each search term were categorized based on content type, tweet posters, and type of evidence used. A DISCERN score was calculated for each tweet to determine its quality of consumer health information. RESULTS: A total of 7531 tweets about bariatric surgery were collected over the course of approximately 1 mo. We found that 58.9% of tweets pertained to surgical interventions, 16.2% were nutrition-related, 11.3% were progress posts, 7.8% were inspirational posts, and 5.9% pertained to lifestyle. Of the tweets pertaining to surgical interventions, 26% were posted by physicians, and 13.7% of those physicians used scientific evidence. The relationship between the average total DISCERN scores and each variable was statistically significant. CONCLUSIONS: Even though physicians posted the highest quality consumer information, that information still correlated with an average DISCERN score of "very poor". Twitter may provide a good way to foster community and get anecdotal information but is not a place to gather high-quality scientific consumer health information.

A Resident-Driven Mobile Evaluation System Can Be Used to Augment Traditional Surgery Rotation Evaluations.

BACKGROUND: The Accreditation Council for Graduate Medical Education requires residents to receive milestone-based evaluations in key areas. Shortcomings of the traditional evaluation system (TES) are a low completion rate and delay in completion. We hypothesized that adoption of a mobile evaluation system (MES) would increase the number of evaluations completed and improve their timeliness. METHODS: Traditional evaluations for a general surgery residency program were converted into a web-based form via a widely available, free, and secure application and implemented in August 2017. After 8 months, MES data were analyzed and compared to that of our TES. RESULTS: 122 mobile evaluations were completed; 20% were solicited by residents. Introduction of the MES resulted in an increased number of evaluations per resident (P = .0028) and proportion of faculty completing evaluations (P = .0220). Timeliness also improved, with 71% of evaluations being completed during one's clinical rotation. CONCLUSIONS: A resident-driven MES is an inexpensive and effective method to augment traditional end-of-rotation evaluations.

Racial disparities in minimally invasive esophagectomy and gastrectomy for upper GI malignancies.

BACKGROUND: Esophageal cancer and gastric cancer are two important causes of upper GI malignancies. Literature has shown that minimally invasive esophagectomies (MIE) and gastrectomies (MIG), have shorter length of stay and fewer complications. However, limited literature exists about the association between race and access to MIE and MIG. This study aims to identify the racial disparities in the different approaches to esophagectomy and gastrectomy. We further evaluate the relationship between the race and postoperative complications. METHODS: This IRB-approved retrospective study utilized data from the American College of Surgeons National Quality Improvement Program. All recorded cases of MIE, MIG, open gastrectomy, and esophagectomy between 2012 and 2019 were isolated. Propensity score matching and univariate analysis was performed to assess the independent effect of black self-identified race on access and outcomes. p < 0.05 was required to achieve statistical significance. RESULTS: 7891 cases of esophagectomy and 5,132 cases of gastrectomy cases were identified. Using Propensity and logistic regression, we identified that black self-reported race is an independent predictor of open approach to gastrectomy (OR 1.6871943, 95% CI 1.431464-1.989829, p < 0.001). Black self-reported race was not predictive of operative approach among esophagectomy patients (OR 0.7942576, 95% CI 0.5698645-1.124228, p = 0.183). In contrast, black self-reported is an independent predictor of postoperative complications among esophagectomy patients only. Esophagectomy patients of black self-reported race were more likely to experience any complication (OR 1.4373437, 95% CI 1.1129239-1.8557096, p = 0.00537), severe complications (OR 1.3818966, 95% CI 1.0653087-1.7888454, p = 0.0144), and death (OR 2.00779762, 95% CI 1.08034921-3.56117535, p = 0.0211) within 30 days of their surgeries. CONCLUSION: Our analysis revealed a significant racial disparity in access to MIG and a higher incidence of post-operative complications amongst esophagectomy patients. Minimally invasive techniques are underutilized in racial minorities. The findings herein warrant further investigation to eliminate barriers and disparities.

Resident Endoscopy Experience Correlates Poorly with Performance on a Virtual Reality Simulator.

Background Endoscopy training has become increasingly emphasized during general surgery residency as reflected by introduction of the Fundamentals of Endoscopic Surgery (FES) examination, which includes testing of skills on virtual reality (VR) simulators. Although studies exist to assess the ability of the simulator to differentiate between novices and experienced endoscopists, it is not well understood how simulators can differentiate skills among resident cohort. Objective To assess the utility of the VR simulator, we evaluated the correlation between resident endoscopy experience and performance on two VR simulator colonoscopy modules on the GI-BRONCH Mentor (Simbionix Ltd, Airport City, Israel). Methods Postgraduate years 2 to 5 residents completed "easy" and "difficult" VR colonoscopies, and performance metrics were recorded from October 2017 to February 2018 at Rutgers' two general surgery residency programs. Resident endoscopy experience was obtained through Accreditation Council for Graduate Medical Education case logs. Correlations between resident endoscopy experience and VR colonoscopy performance metrics were assessed using Spearman's rho (ρ) correlation statistic and bivariate logistic regression. Results Fifty-five residents out of 65 (84.6%) eligible participants completed the study. There were limited correlations found between resident endoscopy experience and FES performance metrics and no correlations were found between resident endoscopy experience and binary metrics of colonoscopy-ability to complete colonoscopy, ability to retroflex, and withdrawal time of less than 6 minutes. Conclusion The VR simulator may have a limited ability to discriminate between experience levels among resident cohort. Future studies are needed to further understand how well the VR simulator metrics correlate with resident endoscopy experience.

Racial and Socioeconomic Disparities in Necrotizing Soft-Tissue Infection.

Necrotizing soft-tissue infection (NSTI) is a medical emergency. We investigated the impact of racial, socioeconomic disparities, and comorbidities on mortality, complications, length of stay, and charges in patients with NSTI.Data were acquired from the National Inpatient Sample from Q4 2015 to 2017. ICD-10, Clinical Modification codes were utilized to identify relevant cases. Logistic regression was used to assess socioeconomic, racial, and health risk factors for adverse outcomes in NSTI patients.Of 16,071,053 cases identified during the study period, 15,078 (0.094%) NSTI cases were recognized. Black patients had increased odds of amputation (OR 1.40 95% CI 1.24-1.58, p < 0.001), prolonged hospital stay (OR 1.40 95% CI 1.24-1.58, p < 0.001), excessive charges (OR 1.22 95% CI 1.03-1.43, p = 0.019), and adverse discharge disposition (OR 1.32 95% CI 1.19-1.46, p < 0.001) compared to white patients. Hispanic patients had increased odds of mortality (OR 1.30 95% CI 1.05-1.60, p = 0.014) and amputation (OR 1.21 95% CI 1.04-1.42, p = 0.016) compared to white patients. Medicare patients had increased odds of mortality (OR 1.35 95% CI 1.09-1.67, p = 0.006), Medicaid patients had increased odd of amputation (OR 1.33 95% CI 1.17-1.51, p < 0.001) and prolonged LOS (OR 1.33 95% CI 1.17-1.51, p < 0.001). Patients in the lower income quartiles had decreased odds of amputation compared to the highest income quartile, including the 26th to 50th income quartile (OR 0.84 95% CI 0.73-0.98, p = 0.022) and 51st to 75th income quartile (OR 0.84 95% CI 0.73-0.98, p = 0.022).Racial and socioeconomic disparities exist for patients being treated for NSTIs.

Socioeconomic Analysis of the Surgical Management of Ectopic Pregnancies: An Analysis of the National Inpatient Sample.

STUDY OBJECTIVE: To identify racial and socioeconomic disparities in the surgical management of ectopic pregnancy. DESIGN: Retrospective study. The National Inpatient Sample was sampled from 2015 to 2017 for inpatient hospitalizations for ectopic pregnancy. Cohorts were identified by surgical treatment type-open procedure vs laparoscopic procedure. Race/ethnicity, primary payer status, and median household income were primary variables of interest. Univariate and multivariable analyses were conducted. SETTING: Nationwide inpatient analysis. PATIENTS: Women presenting for ectopic pregnancy treatment. INTERVENTIONS: Type of surgery. MEASUREMENTS AND MAIN RESULTS: Outcome measures were laparotomy vs laparoscopy for treatment. A total of 18 725 cases were identified, 8325 open and 10 400 laparoscopic. Hispanic women were more likely to receive open procedures as treatment for ectopic pregnancy than White women (odds ratio 1.226, p <.001). Women with private insurance were more likely to receive open procedures than women who used self-pay for treatment (odds ratio 0.809, p <.001). Women of lower median income status, <$60 000, were more likely to receive open procedures than women of the fourth quartile income group. Black women predominantly made up the first quartile income group. When controlling for covariates, Black women were not more likely to receive 1 method of surgical procedure over another. CONCLUSION: Income appears to be related to surgical management of ectopic pregnancy with women of lower median incomes receiving laparotomies over laparoscopic procedures. Equal access to healthcare remains a prudent need in communities of color. Further studies are needed to elucidate surgical decision-making in the management of ectopic pregnancy.

The Association of Chronic Opioid Use with Resource Utilization and Outcomes after Emergency General Surgery.

INTRODUCTION: Chronic opioid use is prevalent among patients undergoing emergent surgery. We sought to understand it on the outcomes of the most common emergency surgery procedures, Appendectomy and Cholecystectomy. METHODS: We used the National Inpatient Sample to identify chronic opioid use in emergency appendectomies (n = 953) and cholecystectomies (n = 2826) from 2005 to 2014. Primary outcome was length of stay (LOS), and secondary outcomes included total charges and mortality. LOS was analyzed with multivariate Poisson regression, total charges with multivariate linear regression. RESULTS: For Appendectomy, the opioid abuse group was younger, had similar gender and racial demographics, had more Medicaid and private insurance and less self-pay, and had no clinically significant differences in comorbidities. Those with chronic opioid use had a 24% increased LOS (20-29%, p < .001) and $5532(±$881, p < .001) higher hospital charges. Mortality was very rare and not different (0.2% vs 0.6%, aOR 0.54 [0.11-2.58], p = .44). For Cholecystectomy, the opioid abuse group was similar in age and gender, had slightly more white individuals, had a slightly different payor mix including higher rate of private insurance, and had no clinically significant differences in comorbidities. Patients with preoperative chronic opioid abuse showed a 14% increased LOS (12-16%, p < .001) and $5352 (± $1065, p < .001) higher hospital charges, but no significant increase in mortality (0.7% vs 0.6%, aOR 1.58 [0.77-3.25], p = .22). CONCLUSION: Patients with chronic opioid abuse did not have increased mortality following EGS but had increased resource utilization and LOS. These findings may help explore the impact of opioid abuse on hospital and societal cost.

Association of hospital factors and socioeconomic status with the utilization of minimally invasive surgery for colorectal cancer over a decade.

BACKGROUND: Surgical resection is a mainstay of treatment for colorectal cancer (CRC). Minimally invasive surgery (MIS) has been shown to have improved outcomes compared to open procedures for colorectal malignancy. While use of MIS has been increasing, there remains large variability in its implementation at the hospital and patient level. OBJECTIVE: The purpose of this study was to identify disparities in sex, race, location, patient income status, insurance status, hospital region, bed size and teaching status for the use of MIS in the treatment of CRC. METHODS: This was a retrospective cohort study using the Nationwide Inpatient Sample Database. Between 2008 and 2017, there were 412,292 hospitalizations of adult patients undergoing elective colectomy for CRC. The primary outcome was use of MIS during hospitalization. RESULTS: Overall, the frequency of open colectomies was higher than MIS (56.56% vs. 43.44%). Black patients were associated with decreased odds of MIS use during hospitalization compared to White patients (OR 0.921, p = 0.0011). As the county population where patients resided decreased, odds of MIS also significantly decreased as compared to central counties of metropolitan areas. As income decreased below the reference of $71,000, odds of MIS also significantly decreased. Medicaid and uninsured patients had decreased odds of MIS use during hospitalization compared to private insurance (OR 0.751, p < 0.0001 and OR 0.629, p < 0.0001 respectively). Rural and urban non-teaching hospitals were associated with decreased odds of MIS as compared to urban teaching hospitals (OR 0.523, p < 0.0001 and OR 0.837, p < 0.0001 respectively). Hospitals with a small bed size were also associated with decreased MIS during hospitalizations (OR 0.888, p < 0.0001). CONCLUSIONS: Marked hospital level and socioeconomic disparities exist for utilization of MIS for colorectal cancer. Strategies targeted at reducing these gaps have the potential to improve surgical outcomes and cancer survival.

Reduction of opioid use using regional anesthetic blocks after inguinal hernia repair in a high risk, safety net population.

OBJECTIVE: The transversus abdominis plane (TAP) block is currently being used perioperatively to reduce postoperative opioid requirements. It is unclear whether TAP blocks reduce postoperative opioid requirements for inguinal hernia repairs. The purpose of this retrospective chart study was to determine whether a TAP block reduces postoperative opioid requirements after an inguinal hernia repair in a safety net hospital. DESIGN: This was a retrospective chart review that evaluated patients at University Hospital in Newark, NJ, who had inguinal hernia repairs from January 2011 to July 2019. Patients were divided into two groups depending on whether they had a TAP block or not. The primary outcome was the amount of opioid required in the first 24 hours postoperatively by a patient reported as morphine equivalent dosing (MED). RESULTS: The group that received the TAP block had a mean (95 percent CI) MED of 7.01 mg (6.70, 7.33), and the control group (no TAP block) had a mean MED of 11.6 mg within 24 hours of the inguinal hernia (p = 0.03). There was no significant difference for postoperative visual analog scale (VAS) pain score, presence of nausea, or length of stay. CONCLUSIONS: Patients with TAP block required less morphine equivalence of opioid within a 24 hours period after an inguinal hernia repair.

Surgical Skills Olympiad: A 4-Year Experience in a General Surgery Residency Program.

Background The acquisition of operative skills is the critical defining component of general surgery training. Performing simulated tasks has been shown to increase a resident's technical skills. As such, we devised the Surgical Skills Olympiad, an annual simulation-based skills competition. We examined our 4-year experience with the Olympiad at a large academic general surgery residency program. Objective This study aimed to use competition to motivate trainees to increase the time they spent practicing basic surgical skills, resulting in improved performance over time. Methods Teams were formed from members of each postgraduate year (PGY) class. Competition tasks were level specific: knot tying for PGY-1, basic laparoscopy for PGY-2, handsewn bowel anastomosis for PGY-3, vascular anastomosis for PGY-4, and advanced laparoscopy for PGY-5. Task scores over a 4-year period (2014-2017) were analyzed and a survey of participating teaching faculty was conducted. Results Ten faculty members responded to the survey, for a response rate of 63%. A total of 50% respondents felt that the caliber of surgical skills increased since the Olympiad was implemented. Ninety percent agreed that the Olympiad was beneficial for residents to assess their skills against their peers. Over 4 years, there was an improvement in scores for suturing task, advanced laparoscopy, and bowel anastomosis ( p < 0.05 for all three). Conclusion A residency-wide surgical skills competition can improve resident performance in technical tasks and promote faculty engagement in resident skills training.

A Machine Learning Approach in Predicting Mortality Following Emergency General Surgery.

BACKGROUND: There is a significant mortality burden associated with emergency general surgery (EGS) procedures. The objective of this study was to develop and validate the use of a machine learning approach to predict mortality following EGS. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database was queried for patients who underwent EGS between 2012 and 2017. We developed a machine learning algorithm to predict mortality following EGS and compared its performance with existing risk-prediction models of American Society of Anesthesiologists (ASA) classification, American College of Surgeon Surgical Risk Calculator (ACS-SRC), and the modified frailty index (mFI) using the area under receiver operative curve (AUC), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). RESULTS: The machine learning algorithm had a very high performance for predicting mortality following EGS, and it had superior performance compared to the ASA classification, ACS-SRC, and the mFI, as measured by the AUC, sensitivity, specificity, PPV, and NPV. DISCUSSION: Machine learning approaches may be a promising tool to predict outcomes for EGS, aiding clinicians in surgical decision-making and counseling of patients and family, improving clinical outcomes by identifying modifiable risk factors than can be optimized, and decreasing treatment costs through resource allocation.

The Effect of Social Determinants and Socioeconomic Status on Laparoscopic Roux-En-Y Gastric Bypass for Weight Loss: An Analysis of the National Inpatient Sample.

Objective In the United States, Black and Hispanic patients have a higher prevalence of obesity than Whites (49.6 vs. 44.8 vs. 42.2%, respectively). Despite higher rates of obesity among minority populations, bariatric surgery is performed at higher obesity levels in minorities than in Whites. This study examines the effects of various socioeconomic factors such as race, payer type, and income on the likelihood of undergoing laparoscopic Roux-en-Y gastric bypass (LRYGB) at class II versus class III obesity and their associated complications. Materials and Methods National Inpatient Sample (NIS) from 2016 to 2017 was queried to identify patients at least 18 years of age with a concomitant diagnosis of class II or class III obesity who underwent LRYGB. We analyzed obesity level at the time of LRYGB (class II vs. class III), postoperative intestinal obstruction during the admission, and occurrence of any noninfectious complication related to the surgery as our main outcomes. A multivariate logistic regression model was utilized to assess the association between our outcomes and socioeconomic factors associated with the admission. Results A total of 76,405 LRYGB operations were included. Out of this total, 83% (63,640) LRYGB operations were in class III obesity. Black patients had a lower rate (11.6%) of LRYGB procedures at class II obesity than White (17.6%) and Hispanic (18%) patients ( p < 0.001). Medicare, Medicaid, and lower income quartiles also showed lower rates of operation at class II obesity ( p < 0.001). Black patients were 29% (95% confidence interval [CI]: 0.61-0.83, p < 0.001) less likely than Whites to have a LRYGB procedure at class II obesity, they were 119% (95% CI: 1.17-4.11, p = 0.0014) more likely to suffer a postoperative intestinal obstruction, and they were 93% (95% CI: 1.31-2.84, p < 0.001) more likely to suffer a noninfectious complication. Conclusion Socioeconomic disparities in the surgical management of severe obesity persist in the United States, especially for LRYGB. This study highlights multiple demographic factors that led to LRYGB at later obesity levels. Black patients were also more likely to be associated with postoperative complications during the admission. The determinants of health disparities in obese patients need to be examined further to reduce potential long-term morbidity and mortality in minorities. Further research is also required to identify the adverse effects of health disparities in patients with severe obesity and obesity-related comorbidities.