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Epidemic and determinants involving field-work Injuries between welders throughout small-scale steel courses throughout Wakiso District, Uganda.
INTRODUCTION Duodenopancreatic trauma is rare and presents high morbidity and mortality rates. Pancreaticoduodenectomy (PD) is the only possible treatment indicated for the most complex injuries (grades IV and V). Although, it is commonly a one-stage procedure, damage control surgery corroborates with a two-stage PD performed on unstable trauma victims. OBJECTIVES Compare the mortality rate of one and two-stage PD in trauma patients. MATERIALS AND METHODS A systematic electronic search of PubMed, Elsevier, LILACS, Scielo, and Capes was conducted on all studies written in English, Portuguese and Spanish with no restriction to publication dates. Review articles, case reports, editorials, animal studies, pediatric and non-trauma scenarios were excluded. RESULTS We selected twenty-two publications, with a total of 149 duodenopancreatic trauma victims who underwent PD, with an overall mortality rate of 42 patients (28.2%). Two-stage PD was exclusively performed on unstable patients (N = 31) with a mortality rate of 38.7%. In a sample of 79 patients submitted to a one-stage PD, 38 patients (48.1%) were unstable with a mortality rate of 34.2%. One-stage PD for stable patients had a mortality rate of 14.6% DISCUSSION Since 1983, hemodynamic state impacts on surgery methods and strategies for trauma patients. Prior to that, one stage PD was not restricted to stable patients. CONCLUSION There were no differences in mortality rates when comparing two and one-stage PD in hemodynamic unstable patients, who had duodenopancreatic lesions (grades IV or V). BACKGROUND We aimed to investigate the association between prehospital times and outcomes of patients who had hypotension at the scene after trauma incidents. METHODS We retrospectively analysed records from a nationwide database (2004-2017) of adults (aged ≥15 years) who were hypotensive (systolic blood pressure less then 90 mmHg) at the scene after trauma. The endpoint was in-hospital mortality. eFT-508 nmr We used multivariable logistic regression analysis to adjust for confounding factors and to estimate the odds ratio (OR) of prehospital times for in-hospital mortality. Stratified analyses were performed based on patient age and type and severity of the trauma. RESULTS Among 5,499 patients included, 906 (16.5%) died in the hospital. The median Injury Severity Score (ISS) was 17 (interquartile range, 9-29). There was a significant trend towards patients having higher in-hospital mortality and ISS when their prehospital times were shorter (P less then 0.001). However, the association between prehospital times and in-hospital mortality was not significant after adjusting for confounding factors, with an adjusted odds ratio of 1.00 (95% confidence interval 0.98-1.01) per 10 min increments in prehospital time. The association remained insignificant when patients were stratified according to age and type and severity of the trauma. CONCLUSIONS Our analysis revealed that prehospital time was not significantly associated with in-hospital mortality among patients who had hypotension at the scene after trauma in the current emergency medical service system in Japan. Further studies are needed to validate our findings. Patients presenting with hemodynamic instability associated with pelvic fractures continue to have very high mortality and surgeons continue to seek damage control strategies that may improve survival. Strategies usually require massive transfusion, immediate pelvic stabilization and another adjunctive maneuver's such as angioembolization or preperitoneal pelvic packing to prevent hemorrhagic death. One current intervention that has regained some popularity in lieu of resuscitative thoracotomy is the Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA). This requires some manner of femoral arterial access to insert a balloon into the aorta and increase central blood pressure (cardiac and cerebral perfusion) and control active pelvic bleeding. Based on several animal models and an increasing number of publications, many US level I trauma centers have now opted to use REBOA in carefully selected patients showing signs of near cardiac arrest from non-compressible torso hemorrhage. Description of the current advances in aortic occlusion using catheter-based technology in the setting of severe shock for non-compressible torso hemorrhage from pelvic ring fracture is the purpose of this report. OBJECTIVE Customized Fontan designs, generated by computer-aided design (CAD) and optimized by computational fluid dynamics simulations, can lead to novel, patient-specific Fontan conduits unconstrained by off-the-shelf grafts. The relative contributions of both surgical expertise and CAD to Fontan optimization have not been addressed. In this study, we assessed hemodynamic performance of Fontans designed by both surgeon's unconstrained modeling (SUM) and by CAD. METHODS Ten cardiac magnetic resonance imaging datasets were used to create 3-dimensional (3D) models of Fontans. Baseline computational fluid dynamics simulations assessed Fontan indexed power loss (iPL), hepatic flow distribution, and percentage of conduit surface area with abnormally low wall shear stress for venous flow ( less then 1 dyne/cm2). Fontans not meeting thresholds were redesigned using 2 methods SUM (ie, original venous anatomy without the Fontan was 3D printed and sent to surgeon for Fontan redesign with clay modeling) and CAD (ie, the same 3D geometry was sent to engineers for iterative Fontan redesign guided by computational fluid dynamics). Both groups were blinded to each other's results. RESULTS Eight Fontans were redesigned by SUM and CAD methods. Both SUM and CAD redesigns met iPL thresholds. SUM had lower iPL, whereas CAD demonstrated balanced hepatic flow distribution and lower wall shear stress percentage. Wall shear stress percentage shared an inverse relationship with iPL, preventing oversized Fontan designs. CONCLUSIONS Customized Fontan conduits with low iPL can be created by either a surgeon or CAD. CAD can also improve hepatic flow distribution and prevent oversized Fontan designs. Future studies should investigate workflows that combine SUM and CAD to optimize Fontan conduits.
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