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Recent increases in firearm violence in U.S. cities are well-documented, however dynamic changes in the people, places and intensity of this public health threat during the COVID-19 pandemic are relatively unexplored. This descriptive epidemiologic study spanning from January 1, 2015 - March 31, 2021 utilizes the Philadelphia Police Department's registry of shooting victims, a database which includes all individuals shot and/or killed due to interpersonal firearm violence in the city of Philadelphia. We compared victim and event characteristics prior to the pandemic with those following implementation of pandemic containment measures. In this study, containment began on March 16, 2020, when non-essential businesses were ordered to close in Philadelphia. There were 331 (SE = 13.9) individuals shot/quarter pre-containment vs. 545 (SE = 66.4) individuals shot/quarter post-containment (p = 0.031). Post-containment, the proportion of women shot increased by 39% (95% CI: 1.21, 1.59), and the proportion of children shot increased by 17% (95% CI: 1.00, 1.35). Black women and children were more likely to be shot post-containment (RR 1.11, 95% CI: 1.02, 1.20 and RR 1.08, 95% CI: 1.03, 1.14, respectively). The proportion of mass shootings (≥4 individuals shot within 100 m within 1 h) increased by 53% post-containment (95% CI: 1.25, 1.88). Geographic analysis revealed relative increases in all shootings and mass shootings in specific city locations post-containment. The observed changes in firearm injury epidemiology following COVID-19 containment in Philadelphia demonstrate an intensification in firearm violence, which is increasingly impacting people who are likely made more vulnerable by existing social and structural disadvantage. These findings support existing knowledge about structural causes of interpersonal firearm violence and suggest structural solutions are required to address this public health threat.

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BACKGROUND: Police transport (PT) of penetrating trauma patients decreases the time between injury and trauma center arrival. Our study objective was to characterize trends in the rate of PT and its impact on mortality. We hypothesized that PT is increasing and that these patients are more injured. METHODS: We conducted a single-center, retrospective cohort study of adult (≥18 years) patients presenting with gunshot wounds (GSWs) to a level 1 center from 2012 to 2018. Patients transported by police or ambulance (emergency medical service [EMS]) were included. The association between mode of transport (PT vs. EMS) and mortality was evaluated using χ2, t tests, Mann-Whitney U tests, and logistic regression. RESULTS: Of 2,007 patients, there were 1,357 PT patients and 650 EMS patients. Overall in-hospital mortality was 23.7%. The rate of GSW patients arriving by PT increased from 48.9% to 78.5% over the study period (p < 0.001). Compared with EMS patients, PT patients were sicker on presentation with lower initial systolic blood pressure (98 vs. 110, p < 0.001), higher Injury Severity Score (median [interquartile range], 10 [2-75] vs. 9 [1-17]; p < 0.001) and more bullet wounds (3.5 vs. 2.9, p < 0.001). Police-transported patients more frequently underwent resuscitative thoracotomy (19.2% vs. 10.0%, p < 0.001) and immediate surgical exploration (31.3% vs. 22.6%, p < 0.001). There was no difference in adjusted in-hospital mortality between transport groups. Of patients surviving to discharge, PT patients had higher Injury Severity Score (9.6 vs. 8.3, p = 0.004) and lower systolic blood pressure on arrival (126 vs. 130, p = 0.013) than EMS patients. CONCLUSION: Police transport of GSW patients is increasing at our urban level 1 center. Compared with EMS patients, PT patients are more severely injured but have similar in-hospital mortality. Further study is necessary to understand the impact of PT on outcomes in specific subsets in penetrating trauma patients. LEVEL OF EVIDENCE: Epidemiological, level III.

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INTRODUCTION: Laparoscopic appendectomies are routinely performed using linear staplers. Few case reports have discussed complications from free intraperitoneal staples after appendectomy. We present the first case of a volvulus caused by a free staple that subsequently required bowel resection. PRESENTATION OF CASE: A 27-year-old female underwent laparoscopic appendectomy for uncomplicated appendicitis. The base of the appendix was divided using a laparoscopic gastrointestinal anastomosis (GIA) stapler and the mesoappendix was divided using a LigaSure device. The patient was discharged the following day. Eight days later, the patient returned to the emergency department with severe abdominal pain, emesis, and peritoneal signs. Computed tomography (CT) showed significant pneumoperitoneum and nonspecific small bowel edema. Exploratory laparotomy was performed revealing a necrotic small bowel segment from a malformed, free staple caught on the peritoneum of the small bowel mesentery causing a closed loop obstruction. After reduction and detorsion, the small bowel segment was not viable and required resection. She was discharged on postoperative day four with no additional perioperative complications. DISCUSSION: Mechanical staplers are commonly used in laparoscopic appendectomy and free intraperitoneal staples are generally considered inert. A high index of suspicion should be maintained for the early postoperative appendectomy patient with obstructive symptoms. CONCLUSION: Inspection of the staple line, choosing the appropriate staple size and cartridge, and removing free malformed staples if seen should be employed during appendectomy to prevent rare but devastating complications.

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BACKGROUND: This study was performed to evaluate the effect of socioeconomic status (SES) on outcomes after cholecystectomy. METHODS: The National Inpatient Sample (NIS) database (2005 to 2011) was queried for patients undergoing cholecystectomy. Clinically relevant variables were used to examine clinical characteristics, postoperative complications, and mortality. SES was investigated by examining income quartile. RESULTS: More than 2 million patients underwent cholecystectomy during this period. They were divided into quartiles by SES. The lowest cohort was younger (50 years, P < .001) and had the lowest Charlson Comorbidity Index (2.08, P < .001). This cohort was more likely African American (15.8%, P < .001) and more likely to have Medicaid (19.2%, P < .001). Using split-sample validation and multivariate analysis, lower SES, Charlson comorbidity Index, and Medicaid recipients were associated with increased mortality. CONCLUSIONS: Patients with Medicaid and lower SES had poorer outcomes after cholecystectomy.

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INTRODUCTION: Impaired wound healing due to immunosuppression has led some surgeons to preferentially use open gastrostomy tube (OGT) over percutaneous gastrostomy tube (PEG) in heart transplant patients when long-term enteral access is deemed necessary. METHODS: The National Inpatient Sample (NIS) database (2005-2010) was queried for all heart transplant patients. Those receiving OGT were compared to those treated with PEG tube. RESULTS: There were 498 patients requiring long-term enteral access treated with a gastrostomy tube, with 424 (85.2%) receiving a PEG and 74 (14.8%) an OGT. The PEG cohort had higher Charlson comorbidity Index (4.1 vs. 2.0, p = 0.002) and a higher incidence of post-operative acute renal failure (31.5 vs. 12.7%, p = 0.001). Post-operative mortality was not different when comparing the two groups (13.8 vs. 6.1%, p = 0.06). On multivariate analysis, while both PEG (OR: 7.87, 95%C.I: 5.88-10.52, p < 0.001) and OGT (OR 5.87, 95%CI: 2.19-15.75, p < 0.001) were independently associated with mortality, PEG conferred a higher mortality risk. CONCLUSIONS: This is the largest reported study to date comparing outcomes between PEG and OGT in heart transplant patients. PEG does not confer any advantage over OGT in this patient population with respect to morbidity, mortality, and length of stay.

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INTRODUCTION: Lung transplant patients require a high degree of immunosuppression, which can impair wound healing when surgical procedures are required. We hypothesized that because of impaired healing, lung transplant patients requiring gastrostomy tubes would have better outcomes with open gastrostomy tube (OGT) as compared to percutaneous endoscopic gastrostomy tube (PEG). METHODS: The National Inpatient Sample (NIS) Database (2005-2010) was queried for all lung transplant recipients requiring OGT or PEG. RESULTS: There were 215 patients requiring gastrostomy tube, with 44 OGT and 171 PEG. The two groups were not different with respect to age (52.0 vs. 56.9 years, p = 0.40) and Charlson Comorbidity Index (3.3 vs. 3.5, p = 0.75). Incidence of acute renal failure was higher in the PEG group (35.2 vs. 11.8%, p = 0.003). Post-operative pneumonia, myocardial infarction, surgical site infection, DVT/PE, and urinary tract infection were not different. Post-operative mortality was higher in the PEG group (11.2 vs. 0.0%, p = 0.02). Using multiple variable analysis, PEG tube was independently associated with mortality (HR: 1.94, 95%C.I: 1.45-2.58). Variables associated with survival included age, female gender, white race, and larger hospital bed capacity. DISCUSSION: OGT may be the preferred method of gastric access for lung transplant recipients. CONCLUSIONS: In lung transplant recipients, OGT results in decreased morbidity and mortality when compared to PEG.

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INTRODUCTION: There is a paucity of data on outcomes for lung transplant (LT) recipients requiring general surgery procedures. This study examined outcomes after cholecystectomy in LT recipients using a large database. METHODS: The National Inpatient Sample Database (2005-2010) was queried for all LT patients requiring laparoscopic cholecystectomy (LC) and open cholecystectomy (OC). RESULTS: There were a total of 377 cholecystectomies performed in LT patients. The majority were done for acute cholecystitis (n = 218; 57%) and were done urgently/emergently (n = 258; 68%). There were a total of 304 (81%) laparoscopic cholecystectomies and 73 (19%) OC. There was no difference in age when comparing the laparoscopic and open groups (53.6 vs 55.5 years; P = .39). In addition, the Charlson Comorbidity Index was similar in the 2 groups (P = .07). Patients undergoing OC were more likely to have perioperative myocardial infarction, pulmonary embolus, or any complication compared with the laparoscopic group. Total hospital charges ($59,137.00 vs $106,329.80; P = .03) and median duration of stay (4.0 vs 8.0 days; P = .02) were both greater with open compared with LC. CONCLUSION: Cholecystectomy can be performed safely in the LT population with minimal morbidity and mortality.

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