Stopping Hospital Infections With Environmental Services (SHINE): A Cluster-randomized Trial of Intensive Monitoring Methods for Terminal Room Cleaning on Rates of Multidrug-resistant Organisms in the Intensive Care Unit

BACKGROUND

Multidrug-resistant organisms (MDROs) frequently contaminate hospital environments. We performed a multicenter, cluster-randomized, crossover trial of 2 methods for monitoring of terminal cleaning effectiveness.

METHODS

Six intensive care units (ICUs) at 3 medical centers received both interventions sequentially, in randomized order. Ten surfaces were surveyed each in 5 rooms weekly, after terminal cleaning, with adenosine triphosphate (ATP) monitoring or an ultraviolet fluorescent marker (UV/F). Results were delivered to environmental services staff in real time with failing surfaces recleaned. We measured monthly rates of MDRO infection or colonization, including methicillin-resistant Staphylococcus aureus, Clostridioides difficile, vancomycin-resistant Enterococcus, and MDR gram-negative bacilli (MDR-GNB) during a 12-month baseline period and sequential 6-month intervention periods, separated by a 2-month washout. Primary analysis compared only the randomized intervention periods, whereas secondary analysis included the baseline.

RESULTS

The ATP method was associated with a reduction in incidence rate of MDRO infection or colonization compared with the UV/F period (incidence rate ratio [IRR] 0.876; 95% confidence interval [CI], 0.807-0.951; P = .002). Including the baseline period, the ATP method was associated with reduced infection with MDROs (IRR 0.924; 95% CI, 0.855-0.998; P = .04), and MDR-GNB infection or colonization (IRR 0.856; 95% CI, 0.825-0.887; P < .001). The UV/F intervention was not associated with a statistically significant impact on these outcomes. Room turnaround time increased by a median of 1 minute with the ATP intervention and 4.5 minutes with UV/F compared with baseline.

CONCLUSIONS

Intensive monitoring of ICU terminal room cleaning with an ATP modality is associated with a reduction of MDRO infection and colonization.

The Traveling Pelvic Bullet: A Case of Retrograde Ballistic Migration Through the Venous System

Migration of a ballistic missile through the vasculature is rare but important to recognize. It can lead to diagnostic confusion and seemingly unexplainable bullet trajectories. We have described the case of a young man with a gunshot wound to the axillary vein and initial embolus to the inferior vena cava. The bullet subsequently migrated to the right common iliac vein, allowing for straightforward retrieval.

What happens after they survive? The role of anticoagulants and antiplatelets in IVC injuries

Background

Venous thromboembolism (VTE) after an inferior vena cava (IVC) injury is a devastating complication. Current practice involves variable use of anticoagulation and antiplatelet (AC/AP) agents. We hypothesized that AC/AP can reduce the incidence of VTE and that delayed institution of AC/AP is associated with increased VTE events.

Methods

We retrospectively reviewed IVC injuries cared for at a large urban adult academic level 1 trauma center between January 1, 2008 and December 31, 2020, surviving 72 hours. Patient demographics, injury mechanism, surgical repair, type and timing of AC, and type and timing of VTE events were characterized. Postoperative AC status during hospital course before an acute VTE event was delineated by grouping patients into four categories: full, prophylactic, prophylactic with concomitant AP, and none. The primary outcome was the incidence of an acute VTE event. IVC ligation was excluded from analysis.

Results

Of the 76 patients sustaining an IVC injury, 26 were included. The incidence of a new deep vein thrombosis distal to the IVC injury and a new pulmonary embolism was 31% and 15%, respectively. The median onset of VTE was 5 days (IQR 1–11). Four received full AC, 10 received prophylactic AC with concomitant AP, 8 received prophylactic AC, and 4 received no AC/AP. New VTE events occurred in 0.0% of full, in 30.0% of prophylactic with concomitant AP, in 50.0% of prophylactic, and in 50.0% without AC/AP. There was no difference in baseline demographics, injury mechanisms, surgical interventions, and bleeding complications.

Discussion

This is the first study to suggest that delay and degree of antithrombotic initiation in an IVC-injured patient may be associated with an increase in VTE events. Consideration of therapy initiation should be performed on hemostatic stabilization. Future studies are necessary to characterize the optimal dosing and temporal timing of these therapies.

Level of evidence

Therapeutic, level 3.

A surgical needs assessment for airway rapid responses: A retrospective observational study

BACKGROUND

Airway rapid response (ARR) teams can be compiled of anesthesiologists, intensivists, otolaryngologists, general and thoracic surgeons, respiratory therapists, and nurses. The optimal composition of an ARR team is unknown but considered to be resource intensive. We sought to determine the type of technical procedures performed during an ARR activation to inform team composition.

METHODS

A large urban quaternary academic medical center retrospective review (2016-2019) of adult ARR patients was performed. Analysis included ARR demographics, patient characteristics, characteristics of preexisting tracheostomies, incidence of concomitant conditions, and procedures completed during an ARR event.

RESULTS

A total of 345 ARR patients with a median age of 60 years (interquartile range, 47-69 years) and a median time to ARR conclusion of 28 minutes (interquartile range, 14-47 minutes) were included. About 41.7% of the ARR had a preexisting tracheostomy. Overall, there were 130 procedures completed that can be performed by a general surgeon in addition to the 122 difficult intubations. These procedures included recannulation of a tracheostomy, operative intervention, new emergent tracheostomy or cricothyroidotomy, thoracostomy tube placement, initiation of extracorporeal membrane oxygenation, and pericardiocentesis.

CONCLUSION

Highly technical procedures are common during an ARR, including procedures related to tracheostomies. Surgeons possess a comprehensive skill set that is unique and comprehensive with respect to airway emergencies. This distinctive skill set creates an important role within the ARR team to perform these urgent technical procedures.

LEVEL OF EVIDENCE

Epidemiologic/prognostic, level III.

Retained Bullets After Firearm Injury: A Survey on Surgeon Practice Patterns

Retained bullets are common after firearm injuries, yet their management remains poorly defined. Surgeon members of the Eastern Association for the Surgery of Trauma (N = 427) were surveyed using an anonymous, web-based questionnaire during Spring 2016. Indications for bullet removal and practice patterns surrounding this theme were queried. Also, habits around screening and diagnosing psychological illness in victims of firearm injury were asked. Most respondents were male (76.5%, n = 327) and practiced at urban (84.3%, n = 360), academic (88.3%, n = 377), Level 1 trauma centers (72.8%, n = 311). Only 14.5% (n = 62) of surgeons had institutional policies for bullet removal and 5.6% (n = 24) were likely to remove bullets. Half of the surgeons (52.0%, n = 222) preferred to remove bullets after the index hospitalization and pain (88.1%, n = 376) and a palpable bullet (71.2%, n = 304) were the most frequent indications for removal. Having the opportunity to follow-up with patients to discuss bullet removal was significantly predictive of removal (odds ratio (OR) = 2.25, 95% confidence interval (CI) = [1.05, 4.85], p = .04). Furthermore, routinely asking about retained bullets during outpatient follow-up was predictive of new psychological illness screening (OR = 1.94, 95% CI [1.19, 3.16], p = .01) and diagnosis (OR = 1.86, 95% CI = [1.12, 3.09], p = .02) in victims of firearm injury. Thus, surgeons should be encouraged to allot time for patients concerning retained bullet management so that a shared decision can be reached.

Association of Venous Thromboembolism Prophylaxis After Neurosurgical Intervention for Traumatic Brain Injury With Thromboembolic Complications, Repeated Neurosurgery, and Mortality

Importance

There is a lack of evidence regarding the effectiveness and safety of pharmacologic venous thromboembolism (VTE) prophylaxis among patients who undergo neurosurgical interventions for traumatic brain injury (TBI).

Objective

To measure the association between timing of VTE prophylaxis after urgent neurosurgical intervention for TBI and thromboembolic and intracranial complications.

Design, Setting, and Participants

This retrospective cohort study included adult patients (aged ≥16 years) who underwent urgent neurosurgical interventions (craniotomy/craniectomy or intracranial monitor/drain insertion within 24 hours after admission) for TBI at level 1 and 2 trauma centers participating in the American College of Surgeons Trauma Quality Improvement Program between January 1, 2012, and December 31, 2016. Data were analyzed from January to August 2020.

Exposures

Timing of pharmacologic VTE prophylaxis initiation after urgent neurosurgical intervention (prophylaxis delay) measured in days (24-hour periods).

Main Outcomes and Measures

The primary outcome was VTE (deep vein thrombosis or pulmonary embolism). Secondary outcomes were repeated neurosurgery (neurosurgical reintervention after initiation of VTE prophylaxis) and mortality. Hierarchical logistic regression models were used to evaluate the association between prophylaxis delay and each outcome at the patient level and were adjusted for patient baseline and injury characteristics.

Results

The study included 4951 patients (3676 [74%] male; median age, 50 years [IQR, 31-64 years]) who underwent urgent neurosurgical intervention for TBI at 304 trauma centers. The median prophylaxis delay was 3 days (IQR, 1-5 days). After adjustment for patient baseline and injury characteristics, prophylaxis delay was associated with increased odds of VTE (adjusted odds ratio [aOR], 1.08 per day; 95% CI, 1.04-1.12). Earlier initiation of prophylaxis was associated with increased risk of repeated neurosurgery. During the first 3 days, each additional day of prophylaxis delay was associated with a 28% decrease in odds of repeated neurosurgery (aOR, 0.72 per day; 95% CI, 0.59-0.88). After 3 days, each additional day of prophylaxis delay was associated with an additional 15% decrease in odds of repeated neurosurgery (aOR, 0.85 per day; 95% CI, 0.80-0.90). Earlier prophylaxis was associated with greater mortality among patients who initially underwent intracranial monitor/drain procedures, such that each additional day of prophylaxis delay was associated with decreased odds of death (aOR, 0.94 per day; 95% CI, 0.89-0.99).

Conclusions and Relevance

In this cohort study of patients who underwent urgent neurosurgical interventions for TBI, early pharmacologic VTE prophylaxis was associated with reduced risk of thromboembolism. However, earlier initiation of prophylaxis was associated with increased risk of repeated neurosurgery. These findings suggest that although timely initiation of prophylaxis should be prioritized, caution should be used particularly during the first 3 days after the index procedure, when this risk appears to be highest.

Increase in Motor Vehicle Crash Severity: An Unforeseen Consequence of COVID-19

INTRODUCTION

The 2019 coronavirus (COVID-19) pandemic led to stay-at-home (SAH) orders in Pennsylvania targeted at reducing viral transmission. Limitations in population mobility under SAH have been associated with decreased motor vehicle collisions (MVC) and related injuries, but the impact of these measures on severity of injury remains unknown. The goal of this study is to measure the incidence, severity, and outcomes of MVC-related injuries associated with SAH in Pennsylvania.

MATERIALS & METHODS

We conducted a retrospective geospatial analysis of MVCs during the early COVID-19 pandemic using a state-wide trauma registry. We compared characteristics of patients with MVC-related injuries admitted to Pennsylvania trauma centers during SAH measures (March 21-July 31, 2020) with those from the corresponding periods in 2018 and 2019. We also compared incidence of MVCs for each zip code tabulation area (ZCTA) in Pennsylvania for the same time periods using geospatial mapping.

RESULTS

Of 15,550 trauma patients treated during the SAH measures, 3486 (22.4%) resulted from MVCs. Compared to preceding years, MVC incidence decreased 10% under SAH measures with no change in mortality rate. However, in ZCTA where MVC incidence decreased, there was a 16% increase in MVC injury severity.

CONCLUSIONS

Stay-at-home orders issued in response to the COVID-19 pandemic in Pennsylvania were associated with significant changes in MVC incidence and severity. Identifying such changes may inform resource allocation decisions during future pandemics or SAH events.

The impact of COVID-19 infection on outcomes after injury in a state trauma system

BACKGROUND

The COVID-19 pandemic reshaped the health care system in 2020. COVID-19 infection has been associated with poor outcomes after orthopedic surgery and elective, general surgery, but the impact of COVID-19 on outcomes after trauma is unknown.

METHODS

We conducted a retrospective cohort study of patients admitted to Pennsylvania trauma centers from March 21 to July 31, 2020. The exposure of interest was COVID-19 (COV+) and the primary outcome was inpatient mortality. Secondary outcomes were length of stay and complications. We compared demographic and injury characteristics between positive, negative, and not-tested patients. We used multivariable regression with coarsened exact matching to estimate the impact of COV+ on outcomes.

RESULTS

Of 15,550 included patients, 8,170 (52.5%) were tested for COVID-19 and 219 (2.7%) were positive (COV+). Compared with COVID-19-negative (COV-) patients, COV+ patients were similar in terms of age and sex, but were less often white (53.5% vs. 74.7%, p < 0.0001), and more often uninsured (10.1 vs. 5.6%, p = 0.002). Injury severity was similar, but firearm injuries accounted for 11.9% of COV+ patients versus 5.1% of COV- patients (p < 0.001). Unadjusted mortality for COV+ was double that of COV- patients (9.1% vs. 4.7%, p < 0.0001) and length of stay was longer (median, 5 vs. 4 days; p < 0.001). Using coarsened exact matching, COV+ patients had an increased risk of death (odds ratio [OR], 6.05; 95% confidence interval [CI], 2.29-15.99), any complication (OR, 1.85; 95% CI, 1.08-3.16), and pulmonary complications (OR, 5.79; 95% CI, 2.02-16.54) compared with COV- patients.

CONCLUSION

Patients with concomitant traumatic injury and COVID-19 infection have elevated risks of morbidity and mortality. Trauma centers must incorporate an understanding of these risks into patient and family counseling and resource allocation during this pandemic.

LEVEL OF EVIDENCE

Level II, Prognostic Study.

Lymphatic Contractile Function: A Comprehensive Review of Drug Effects and Potential Clinical Application

BACKGROUND

The lymphatic system and the cardiovascular system work together to maintain body fluid homeostasis. Despite that, the lymphatic system has been relatively neglected as a potential drug target and a source of adverse effects from cardiovascular drugs. Like the heart, the lymphatic vessels undergo phasic contractions to promote lymph flow against a pressure gradient. Dysfunction or failure of the lymphatic pump results in fluid imbalance and tissue oedema. While this can due to drug effects, it is also a feature of breast cancer-associated lymphoedema, chronic venous insufficiency, congestive heart failure and acute systemic inflammation. There are currently no specific drug treatments for lymphatic pump dysfunction in clinical use despite the wealth of data from pre-clinical studies.

AIM

To identify (1) drugs with direct effects on lymphatic tonic and phasic contractions with potential for clinical application, and (2) drugs in current clinical use that have a positive or negative side effect on lymphatic function.

METHODS

We comprehensively reviewed all studies that tested the direct effect of a drug on the contractile function of lymphatic vessels.

RESULTS

Of the 208 drugs identified from 193 studies, about a quarter had only stimulatory effects on lymphatic tone, contraction frequency and/or contraction amplitude. Of FDA-approved drugs, there were 14 that increased lymphatic phasic contractile function. The most frequently used class of drug with inhibitory effects on lymphatic pump function were the calcium channels blockers.

CONCLUSION

This review highlights the opportunity for specific drug treatments of lymphatic dysfunction in various disease states and for avoiding adverse drug effects on lymphatic contractile function.

Top Ten Tips Palliative Care Clinicians Should Know About Trauma and Emergency Surgery

There is growing interest in, and need for, integrating palliative care (PC) into the care of patients undergoing emergency surgery and those with traumatic injury. Thus, PC consults for these populations will likely grow in the coming years. Understanding the nuances and unique characteristics of these two acutely ill populations will improve the care that PC clinicians can provide. Using a modified Delphi technique, this article offers 10 tips that experts in the field, based on their broad clinical experience, believe PC clinicians should know about the care of trauma and emergency surgery patients.

Rising incidence of interpersonal violence in Pennsylvania during COVID-19 stay-at home order

BACKGROUND

The coronavirus disease 2019 pandemic and associated policies have had important downstream consequences for individuals, communities, and the healthcare system, and they appear to have been accompanied by rising interpersonal violence. The objective of this study was to evaluate the incidence of injuries owing to interpersonal violence after implementation of a statewide stay-at-home order in Pennsylvania in March 2020.

METHODS

Using the Pennsylvania Trauma Outcome Study registry, we conducted a retrospective cohort study of patients with gunshot wounds, stab wounds, and blunt assault-related injuries attributable to interpersonal violence treated at Pennsylvania trauma centers from March 16 to July 31 of 2018, 2019, and 2020.

RESULTS

There were fewer total trauma admissions in 2020 (17,489) vs 2018 (19,290) and 2019 (19,561). Gunshot wounds increased in 2020 to 737 vs 647 for 2019 and 565 for 2018 (P = .028), whereas blunt assault injuries decreased (P = .03). In all time periods, interpersonal violence primarily impacted urban counties. African American men were predominantly affected by gunshot wounds and stab wounds, whereas Caucasian men were predominantly affected by blunt assault injuries. There were more patients with substance abuse disorders and positive drug screens during coronavirus disease than in comparison periods: (stab wound population 52.3% vs 33.9% vs 45.9%, coronavirus disease era vs 2018 vs 2019, respectively P = .0001), (blunt assault injury population 41.4% vs 33.1% vs 33.5%, coronavirus disease era vs 2018 vs 2019, respectively P < .0001). There was no correlation between the incidence of interpersonal violence and coronavirus disease 2019 rates at the county level.

CONCLUSION

The implementation of a stay-at-home order was accompanied by rising incidence of gunshot and stab wound injuries in Pennsylvania. Preparedness for future resurgences of coronavirus disease 2019 and other pandemics calls for plans to address injury prevention, recidivism, and access to mental health and substance abuse prevention services.

Characteristics, Outcomes, and Trends of Patients With COVID-19-Related Critical Illness at a Learning Health System in the United States

BACKGROUND

The coronavirus disease 2019 (COVID-19) pandemic continues to surge in the United States and globally.

OBJECTIVE

To describe the epidemiology of COVID-19-related critical illness, including trends in outcomes and care delivery.

DESIGN

Single-health system, multihospital retrospective cohort study.

SETTING

5 hospitals within the University of Pennsylvania Health System.

PATIENTS

Adults with COVID-19-related critical illness who were admitted to an intensive care unit (ICU) with acute respiratory failure or shock during the initial surge of the pandemic.

MEASUREMENTS

The primary exposure for outcomes and care delivery trend analyses was longitudinal time during the pandemic. The primary outcome was all-cause 28-day in-hospital mortality. Secondary outcomes were all-cause death at any time, receipt of mechanical ventilation (MV), and readmissions.

RESULTS

Among 468 patients with COVID-19-related critical illness, 319 (68.2%) were treated with MV and 121 (25.9%) with vasopressors. Outcomes were notable for an all-cause 28-day in-hospital mortality rate of 29.9%, a median ICU stay of 8 days (interquartile range [IQR], 3 to 17 days), a median hospital stay of 13 days (IQR, 7 to 25 days), and an all-cause 30-day readmission rate (among nonhospice survivors) of 10.8%. Mortality decreased over time, from 43.5% (95% CI, 31.3% to 53.8%) to 19.2% (CI, 11.6% to 26.7%) between the first and last 15-day periods in the core adjusted model, whereas patient acuity and other factors did not change.

LIMITATIONS

Single-health system study; use of, or highly dynamic trends in, other clinical interventions were not evaluated, nor were complications.

CONCLUSION

Among patients with COVID-19-related critical illness admitted to ICUs of a learning health system in the United States, mortality seemed to decrease over time despite stable patient characteristics. Further studies are necessary to confirm this result and to investigate causal mechanisms.

PRIMARY FUNDING SOURCE

Agency for Healthcare Research and Quality.

Outcome of Hypotensive Trauma Patients by Time and Day of Arrival

BACKGROUND

Although most studies of trauma patients have not demonstrated a "weekend" or "night" effect on mortality, outcomes of hypotensive (systolic blood pressure <90 mm Hg) patients have not been studied. We sought to evaluate whether outcomes of hypotensive patients were associated with admission time and day.

METHODS

We retrospectively analyzed patients from Pennsylvania Level 1 and Level 2 trauma centers with systolic blood pressure of <90 mm Hg over 5 y. Patients were stratified into four groups by arrival day and time: Group 1, weekday days; Group 2, weekday nights; Group 3, weekend days; and Group 4, weekend nights. Patient characteristics and outcomes were compared for the four groups. Adjusted mortality risks for Groups 2, 3, and 4 with Group 1 as the reference were determined using a generalized linear mixed effects model.

RESULTS

After exclusions, 27 trauma centers with a total of 4937 patients were analyzed. Overall mortality was 44%. Compared with patients arriving during the day (Groups 1 and 3), those arriving at night (Groups 2 and 4) were more likely to be younger, to be male, to have lower Glasgow Coma Scale scores and blood pressures, to have penetrating injuries, and to die in the emergency room. Controlled for admission variables, odds ratios (95% confidence intervals) for Groups 2, 3, and 4 were 0.92 (0.72-1.17), 0.89 (0.65-1.23), and 0.76 (0.56-1.02), respectively, for mortality with Group 1 as reference.

CONCLUSIONS

Patients arriving in shock to Pennsylvania Level 1 and Level 2 trauma centers at night or weekends had no increased mortality risk compared with weekday daytime arrivals.

Outcomes After Tracheostomy in COVID-19 Patients

OBJECTIVE

To determine the outcomes of patients undergoing tracheostomy for COVID-19 and of healthcare workers performing these procedures.

BACKGROUND

Tracheostomy is often performed for prolonged endotracheal intubation in critically ill patients. However, in the context of COVID-19, tracheostomy placement pathways have been altered due to the poor prognosis of intubated patients and the risk of transmission to providers through this highly aerosolizing procedure.

METHODS

A prospective single-system multi-center observational cohort study was performed on patients who underwent tracheostomy after acute respiratory failure secondary to COVID-19.

RESULTS

Of the 53 patients who underwent tracheostomy, the average time from endotracheal intubation to tracheostomy was 19.7 days ± 6.9 days. The most common indication for tracheostomy was acute respiratory distress syndrome, followed by failure to wean ventilation and post-extracorporeal membrane oxygenation decannulation. Thirty patients (56.6%) were liberated from the ventilator, 16 (30.2%) have been discharged alive, 7 (13.2%) have been decannulated, and 6 (11.3%) died. The average time from tracheostomy to ventilator liberation was 11.8 days ± 6.9 days (range 2-32 days). Both open surgical and percutaneous dilational tracheostomy techniques were performed utilizing methods to mitigate aerosols. No healthcare worker transmissions resulted from performing the procedure.

CONCLUSIONS

Alterations to tracheostomy practices and processes were successfully instituted. Following these steps, tracheostomy in COVID-19 intubated patients seems safe for both patients and healthcare workers performing the procedure.

Excluded but not forgotten: Veterinary emergency care during emergencies and disasters

BACKGROUND

Disasters or crises impact humans, pets, and service animals alike. Current preparation at the federal, state, and local level focuses on preserving human life. Hospitals, shelters, and other human care facilities generally make few to no provisions for companion care nor service animal care as part of their disaster management plan. Aban-doned animals have infectious disease, safety and psychologic impact on owners, rescue workers, and those involved in reclamation efforts. Animals working as first responder partners may be injured or exposed to biohazards and require care.

DATA SOURCES

English language literature available via PubMed as well as lay press publications on emergency care, veterinary care, disaster management, disasters, biohazards, infection, zoonosis, bond-centered care, prepared-ness, bioethics, and public health. No year restrictions were set.

CONCLUSIONS

Human clinician skills share important overlaps with veterinary clinician skills; similar overlaps occur in medical and surgical emergency care. These commonalities offer the potential to craft-specific and disaster or crisis-deployable skills to care for humans, pets (dogs and cats), service animals (dogs and miniature horses) and first-responder partners (dogs) as part of national disaster healthcare preparedness. Such a platform could leverage the skills and resources of the existing US trauma system to underpin such a program.

Penetrating Neck Trauma: A Review of Management Strategies and Discussion of the ‘No Zone’ Approach

The evaluation and management of hemodynamically stable patients with penetrating neck injury has evolved considerably over the previous four decades. Algorithms developed in the 1970s focused on anatomic neck “zones” to distinguish triage pathways resulting from the operative constraints associated with very high or very low penetrations. During that era, mandatory endoscopy and angiography for Zone I and III penetrations, or mandatory neck exploration for Zone II injuries, became popularized, the so-called “selective approach.” Currently, modern sensitive imaging technology, including computed tomographic angiography (CTA), is widely available. Imaging triage can now accomplish what operative or selective evaluation could not: a safe and noninvasive evaluation of critical neck structures to identify or exclude injury based on trajectory, the key to penetrating injury management. In this review, we discuss the use of CTA in modern screening algorithms introducing a “No Zone” paradigm: an evidence-based method eliminating “neck zone” differentiation during triage and management. We conclude that a comprehensive physical examination, combined with CTA, is adequate for triage to effectively identify or exclude vascular and aerodigestive injury after penetrating neck trauma. Zone-based algorithms lead to an increased reliance on invasive diagnostic modalities (endoscopy and angiography) with their associated risks and to a higher incidence of nontherapeutic neck exploration. Therefore, surgeons evaluating hemodynamically stable patients with penetrating neck injuries should consider departing from antiquated, invasive algorithms in favor of evidence-based screening strategies that use physical examination and CTA.

Venous thromboembolism after penetrating femoral and popliteal artery injuries: an opportunity for increased prevention

Background

Trauma patients with penetrating vascular injuries have a higher rate of venous thromboembolism (VTE). The objective of this study was to determine the risk of VTE formation in penetrating femoral and popliteal vascular injuries and the effects of endovascular management of these injuries.

Methods

A retrospective study of Pennsylvania Trauma Outcome Study registry was conducted during a 5-year period (2013–2017). All adult patients with a penetrating mechanism with femoral/popliteal vascular injuries were studied. Primary outcome was incidence of VTE in patients with isolated arterial injuries versus combined arterial/venous injuries. Secondary endpoints were intensive care unit (ICU) length of stay (LOS), hospital LOS and mortality. Statistical comparisons were accomplished using Fisher’s exact tests, and parametric two-sample t-tests or non-parametric Wilcoxon rank-sum tests for categorical and continuous variables, respectively.

Results

Of the 865 patients with penetrating extremity vascular injuries, 207 had femoral or popliteal artery injuries. Patients with isolated arterial injuries (n=131) had a significantly lower deep venous thrombosis (DVT) rate compared with those with concurrent venous injuries (n=76) (3.1% vs. 13.2%, p=0.008). There were 14 patients in the study who developed DVTs. Among the four patients with isolated femoral or popliteal arterial injuries who had developed DVTs, three had an open repair. Among patients with isolated arterial injuries, those with DVT spend significantly more time on the ventilator (median=2 vs. 0, p=0.0020) compared with patients without DVT. Patients with DVT also had longer stay in the hospital (median=17.5 vs. 8, p=0.0664) and in the ICU (median=3 vs. 1, p=0.0585).

Conclusions

Risk of DVT exists in patients with penetrating isolated femoral and popliteal artery trauma. Open repair was associated with significantly higher DVT rates in isolated arterial injuries.

Level of evidence

Level IV therapeutic care/management.

Contemporary hemodynamic monitoring, fluid responsiveness, volume optimization, and endpoints of resuscitation: an AAST critical care committee clinical consensus

This article, on hemodynamic monitoring, fluid responsiveness, volume assessment, and endpoints of resuscitation, is part of a compendium of guidelines provided by the AAST (American Association for the Surgery of Trauma) critical care committee. The intention of these guidelines is to inform practitioners with practical clinical guidance. To do this effectively and contemporarily, expert consensus via the critical care committee was obtained. Strict guideline methodology such a GRADE (Grading of Recommendations Assessment, Development and Evaluation) was purposefully NOT used so as not to limit the possible clinical guidance. The critical care committee foresees this methodology as practically valuable to the bedside clinician.

Training Disparities of Our Future Workforce: A Survey of Trauma Fellowship Candidates

BACKGROUND

Training in Acute Care Surgery (ACS) is an integral component of general surgery residency and serves as a critical base experience for the added educational qualifications of fellowship. How this training varies between programs is not well characterized. We sought to describe the variation in clinical exposure between residencies in a sample of residents applying to an ACS fellowship. We hypothesized that applicants have significant variations in clinical exposure as well as unique and specific expectations for educational experiences.

MATERIALS AND METHODS

We offered an anonymous 82-question survey focused on residency clinical exposure and self-perceived confidence in key areas of ACS training, as well as fellowship training and career expectations to all applicants interviewed at a single trauma, critical care, and emergency surgery fellowship program. Responses were assessed via absolute numbers and confidence via a 5-point Likert scale; data are reported using descriptive statistics and linear regression models.

RESULTS

Forty-two interviewing applicants completed the survey, for a 96% response rate. Applicants reported heterogeneous levels of comfort across most ACS domains. There was good correlation between experience and comfort in most procedural areas. During fellowship training, respondents placed highest priority on operative experience, with 43% rating this as their highest priority, followed by penetrating trauma experience (33%).

CONCLUSIONS

We found significant variations in both experience and comfort within key ACS domains among fellowship applicants. Despite training variability, there was good correlation between experience and self-reported comfort. Collaboration between residency and fellowship governing bodies may help address areas of limited exposure before entry into clinical practice.

AAST Critical Care Committee clinical consensus: ECMO, nutrition

The American Association for the Surgery of Trauma Critical Care Committee has developed clinical consensus guides to help with practical answers based on the best evidence available. These are focused in areas in which the levels of evidence may not be that strong and are based on a combination of expert consensus and research. Overall, quality of the research is mixed, with many studies suffering from small numbers and issues with bias. The first two of these focus on the use of extracorporeal membrane oxygenation in trauma patients and nutrition for the critically ill surgical/trauma patient.