Diagnostic accuracy of computed tomography findings for hollow viscus injuries following thoracoabdominal gunshot wounds.

BACKGROUND: Selective nonoperative management (SNOM) of abdominal gunshot wounds (GSWs) is increasingly used as computed tomography (CT) has become a diagnostic adjunct for the evaluation of intraabdominal injuries including hollow viscus injuries (HVIs). Currently, there is scarce data on the diagnostic accuracy of CT for identifying HVI. The purpose of this study was to determine the diagnostic accuracy of different CT findings in the diagnosis of HVI following abdominal GSW. METHODS: This retrospective single-center cohort study was performed from January 2015 to April 2019. We included consecutive patients (≥18 years) with abdominal GSW for whom SNOM was attempted and an abdominal CT was obtained as a part of SNOM. Computed tomography findings including abdominal free fluid, diffuse abdominal free air, focal gastrointestinal wall thickness, wall irregularity, abnormal wall enhancement, fat stranding, and mural defect were used as our index tests. Outcomes were determined by the presence of HVI during laparotomy and test performance characteristics were analyzed. RESULTS: Among the 212 patients included for final analysis (median age: 28 years), 43 patients (20.3%) underwent a laparotomy with HVI confirmed intraoperatively whereas 169 patients (79.7%) were characterized as not having HVI. The sensitivity of abdominal free fluid was 100% (95% confidence interval [CI]: 92-100). The finding of a mural defect had a high specificity (99%, 95% CI: 97-100). Other findings with high specificity were abnormal wall enhancement (97%, 95% CI: 93-99) and wall irregularity (96%, 95% CI: 92-99). CONCLUSION: While there was no singular CT finding that confirmed the diagnosis of HVI following abdominal GSW, the absence of intraabdominal free fluid could be used to rule out HVI. In addition, the presence of a mural defect, abnormal wall enhancement, or wall irregularity is considered as a strong predictor of HVI. LEVEL OF EVIDENCE: Diagnostic Test or Criteria; Level II.

The influence of frailty on perioperative outcomes in patients undergoing surgical resection of liver metastases: a nationwide readmissions database study.

Background: Liver metastases arise frequently from primary colorectal, pancreatic, and breast cancers. Research has highlighted the patient's frailty status as an important predictor of outcomes, but the literature evaluating the role of frailty in patients with secondary metastatic disease of the liver remains limited. Using predictive analytics, we evaluated the role of frailty in patients who underwent hepatectomy for liver metastases. Methods: We used the Nationwide Readmissions Database from 2016-2017 to identify patients who underwent resection of a secondary malignant neoplasm of the liver. Patient frailty was evaluated using the Johns Hopkins Adjusted Clinical Groups (JHACG) frailty-defining diagnosis indicator. Propensity score matching was performed and Mann-Whitney U testing was used to analyze complication rates. Receiver operating characteristic (ROC) curves were created following creation of logistic regression models for predicting discharge disposition. Results: Frail patients reported significantly higher rates of nonroutine discharges, longer inpatient stays, greater costs, higher rates of acute infection, posthemorrhagic anemia, urinary tract infection (UTI), deep vein thrombosis (DVT), wound dehiscence and readmission, and greater mortality (P<0.05). Predictive models for patient discharge disposition, DVT and UTI demonstrated that the use of frailty status and age improved the area under the ROC curves significantly compared to models using age alone. Conclusions: Frailty was found to be significantly correlated with higher rates of medical complications during inpatient stay following hepatectomy in patients with liver metastasis. The inclusion of patient frailty status in predictive models improved their predictive capacity compared to those using age alone.

Continued Trauma: A Thematic Analysis of the Asylum-Seeking Experience Under the Migrant Protection Protocols.

Introduction: The Migrant Protection Protocols (MPP) required asylum seekers presenting to the U.S. southern border to wait in Mexico while seeking asylum. Currently, there is a lack of understanding of the MPP's potential harm to an already highly traumatized population. We sought to understand health impacts of this policy, including exposure to continued trauma. Methods: The University of Southern California (USC)'s Keck Human Rights Clinic analyzed de-identified legal declarations and forensic medical affidavits of 11 asylum seekers subjected to MPP. A deductive, thematic analysis was performed to understand the health impact and traumas experienced, and instances of each subtheme were counted by utilizing content analysis methodology. Results: Case analysis identified a total of 36 subthemes. Trauma subthemes included physical assault, psychological abuse, violence against family/friends, witnessed violence, sexual violence, and escalation. Perpetrator subthemes included gang, paramilitary, intimate partner, family, state, and unknown/other. Stress subthemes included despondency and social isolation. Security subthemes included reach of perpetrator, impunity of perpetrator, continued fear of persecution, fear of return, lack of safety, and reliance on strangers. Social determinants of health subthemes included tenuous housing, financial support, food insecurity, health care access, access to employment, and hazardous conditions. Psychological sequelae included anxiety, depressive, post-trauma, and suicidality; physical sequelae included dental, neurological, and dermatological sequelae. Conclusion: The MPP caused harm among these 11 cases evaluated. Harm resulted from continued trauma, worsening social determinants of health, and continued presence of fear and insecurity. The MPP may increase the risk of re-traumatization as well as detract from asylum seekers' ability to heal from pre-migration trauma.