Assessing coastline recession for adaptation planning: sea level rise versus storm erosion.

The Sixth Assessment report (AR6) of the Intergovernmental Panel on Climate Change (IPCC) states with high confidence that most sandy coasts around the world will experience an increase in coastal erosion over the twenty-first century. An increase in long term coastal erosion (coastline recession) along sandy coasts can translate into massive socio-economic impacts, unless appropriate adaptation measures are implemented in the next few decades. To adequately inform adaptation measures, it is necessary to have a good understanding of the relative importance of the physical processes driving coastline recession, as well as of linkages between consideration (or not) of certain processes and the level of risk tolerance; understandings that are hitherto lacking. Here, we apply the multi-scale Probabilistic Coastline Recession (PCR) model to two end-member sandy coastal types (swell dominated and storm dominated), to investigate where and when coastline recession projections are dominated by the differential contributions from Sea Level Rise (SLR) and storm erosion. Results show that SLR substantially increases the projected end-century recession at both types of coasts and that projected changes in the wave climate have only a marginal impact. An analysis of the Process Dominance Ratio (PDR), introduced here, shows that the dominance of storm erosion over SLR (and vice versa) on total recession by 2100 depends on both the type of the beach and the risk tolerance levels. For moderately risk-averse decisions (i.e. decisions accounting only for high exceedance probability recessions and hence do not account for very high amounts of potential recession-for example, the placement of temporary summer beach cabins), additional erosion due to SLR can be considered as the dominant driver of end-century recession at both types of beaches. However, for more risk-averse decisions that would typically account for higher potential recession (i.e. lower exceedance probability recessions), such as the placement of coastal infrastructure, multi-storey apartment buildings etc., storm erosion becomes the dominant process. The results of this study provide new insights on which physical processes need to be considered when and where in terms of numerical modelling efforts needed for supporting different management decisions, potentially enabling more streamlined and comprehensive assessments of the efficacy of coastal adaptation measures.

Predictors of Infection and Benefit of Antibiotics in Gunshot Wounds to the Face.

BACKGROUND: Gunshot wounds (GSWs) to the face are at high risk for infection due the extent of tissue injury and often-observed violation of oral and sinus cavities. Given the ambiguous data on antibiotic benefit in GSW to the face, the purpose of this study is to characterize antibiotic usage, infection details, and risk factors associated with higher infection rates in GSW to face. METHODS: We conducted a retrospective review of patients presenting with GSW to the face from 2009 to 2017. The primary outcome was to identify risk factors associated with infections in patients with facial GSWs. A stepwise multivariate linear regression analysis was performed to determine the impact of specific injury details. RESULTS: Two hundred sixty-nine patients qualified for the study. Demographic information and details of hospital stay are presented in tables. Most patients (88.8%) received admission antibiotics. Facial infections were observed in 36 patients (13.4%). The infected cohort required more antibiotic days (P < 0.001), higher percentage of invasive airway procedures (P = 0.01), longer length of stay (P < 0.001), greater number of surgeries (P < 0.022), and higher readmission rates (P < 0.001). Factors associated with head or neck infections included oral cavity (odds ratio, 1.23; P = 0.04) and sinus involvement (odds ratio, 1.10; P = 0.045). CONCLUSIONS: Bullet trajectories that violated the oral or maxillary sinus cavities were associated with higher head and neck infection rates. Patients without oral cavity or sinus involvement had a lower chance (4.1%) of developing an infection and therefore may have marginal benefit from antibiotics.

Impact of Opioid-Minimizing Pain Protocols After Burn Injury.

In 2019, we implemented a pill-based, opioid-minimizing pain protocol and protocolized moderate sedation for dressing changes in order to decrease opioid exposure in burn patients. We hypothesized that these interventions would reduce inpatient opioid exposure without increasing acute pain scores. Two groups of consecutive patients admitted to the burn service were compared: Pre-group (from January 1, 2018 to July 31, 2019) and Post-group (from January 1, 2020 to June 30, 2020) from before and after the implementation of the protocols (from August 1, 2019 to December 31, 2019). We abstracted patient demographics and burn injury characteristics from the burn registry. We obtained opioid exposure and pain scale scores from the electronic medical record. The primary outcome was total morphine milligram equivalents (MMEs). Secondary outcomes included MMEs/day, pain domain-specific MMEs, and pain scores. Pain was estimated by creating a normalized pain score (range 0-1), which incorporated three different pain scales (Numeric Rating Scale, Behavioral Pain Scale, and Behavioral Pain Assessment Scale). Groups were compared using Wilcoxon rank-sum and chi-square tests. Treatment effects were estimated using Bayesian generalized linear models. There were no differences in demographics or burn characteristics between the Pre-group (n = 495) and Post-group (n = 174). The Post-group had significantly lower total MMEs (Post-group 110 MMEs [32, 325] vs Pre-group 230 [60, 840], P < .001), MMEs/day (Post-group 33 MMEs/day [15, 54] vs Pre-group 52 [27, 80], P < .001), and domain-specific total MMEs. No difference in average normalized pain scores was seen. Implementation of opioid-minimizing protocols for acute burn pain was associated with a significant reduction in inpatient opioid exposure without an increase in pain scores.

The Epidemiology and Management of Pediatric Maxillary Fractures.

BACKGROUND: Most literature regarding traumatic Le Fort or maxillary fractures exists in the adult population, with limited information regarding the epidemiology and management of pediatric fractures. The purpose of this study was to evaluate fracture mechanism, surgical management, and associated injuries in pediatric patients with Le Fort fractures. METHODS: A retrospective chart analysis of all pediatric patients age ≤18 years diagnosed with facial fractures at a single level 1 trauma center over a 10-year period (January 2006-December 2015) was performed. Demographics, fracture location, mechanism of injury, and hospital course were abstracted as well as associated injuries and need for operative management. RESULTS: A total of 1274 patients met inclusion criteria. Sixty-nine (5.4%) presented with Le Fort fractures. Factors associated with Le Fort fractures included motor vehicle collisions (P < 0.001), increased age (P < 0.001), and traumatic brain injury (P < 0.04). Patients with Le Fort fractures were more likely to need intensive care unit admission (P < 0.001), surgical management (P < 0.001), transfusions (P < 0.001), secondary fixation surgery (P < 0.001), and have a longer length of stay (P < 0.001). Multivariate showed increased odds for increased age (OR 1.1; 95%CI 1.04-1.17) and concomitant orbit fractures (OR 8.33; 95%CI 4.08-19.34). Decreased odds were associated for all mechanisms of injury other than motor vehicle collisions (Other blunt trauma: OR 0.36; 95%CI 0.2-0.6. Penetrating trauma: OR 0.13; 95%CI 0.01-0.6). CONCLUSION: Maxillary or Le Fort fractures represent a small portion of pediatric facial fractures but require high rates of operative management. The high velocity required to create this fracture type is associated with significant traumatic comorbidities, which can complicate the hospital course.

Factors Associated With Surgical Management for Pediatric Facial Fractures at a Level One Trauma Center.

Pediatric facial fractures present and are managed differently than the adult population. This study describes the pattern and mechanism of facial fractures in children and identifies factors associated with need for surgical management. An IRB-approved retrospective chart analysis of all pediatric patients age ≤ 18 years diagnosed with facial fractures at our level 1 trauma center over a 10-year period (January 2006-December 2015) was performed. Demographics, fracture location, mechanism of injury, concomitant head and neck injuries, and surgical management were reviewed. Statistical analysis was then performed comparing surgical and nonsurgical cohorts using univariate and multivariate analyses. One thousand two hundred seventy-four patients were diagnosed with facial fractures. Five hundred seventeen (40.6%) underwent surgical management. Two thousand one hundred seventy-two total facial fractures were recorded. Orbit fractures (29%) were the most commonly recorded, observed in 49% of patients presenting. Increased age was associated with increased odds of surgical management (OR 1.13; 95% CI 1.09-1.16). Mandible (OR 9.28; 95% CI 6.88-12.51) and Le Fort fractures (OR 19.73; 95% CI 9.78-39.77) had increased odds of surgical management. Patients with traumatic brain injury had reduced odds (OR 0.54; 95% CI 0.35-0.83) of surgical management for their facial fractures. Older pediatric patients may be more likely to require surgical management of their facial fractures, especially those with mandible or Le Fort fractures. Patients with traumatic brain injury are likely to sustain life threatening injuries, deferring repair of their facial fractures. Patient education and counseling, as well as predictive models, can be improved to reflect these data.

The Trends of Pediatric Facial Fractures Due to Violence in a Level One Trauma Population.

INTRODUCTION: Pediatric facial fractures due to intentionally violent mechanisms represent a unique subset of facial fractures. The objective of our research is to identify how violence affects patterns of facial fractures and their management in pediatric patients. METHODS: An IRB approved, retrospective study of our institution's pediatric patients ≤18 years of age who presented with ≥1 facial fracture due to violence from January 2006 to December 2015 was performed. Violence was defined as trauma intended to hurt another or self. Demographics, fractures, mechanism, concomitant injuries, and management were analyzed. RESULTS: The 1274 patients were diagnosed with facial fractures, with 235 of these due to violence (18%). These patients of violence (POV) had 332 fractures, with an average fracture per patient of 1.4 ±â€Š.0.8. The majority (86%) were male, Non-Hispanic African American (35%), and the average age was 15.9 ±â€Š2.8 years. The most common fracture was the mandible (50% of patients) and most common mechanism was assault (76%). The POV were older, male, and of minority race/ethnic groups when compared to patients of non-violence (PONV) (P <0.01). The POV presented with fewer concomitant injuries, were less likely to be admitted to the intensive care unit, and more often surgically managed when compared to the PONV (P <0.01). CONCLUSION: This study represents the largest US, single institution, Level 1 trauma center study of pediatric facial fractures. Pediatric patients with facial fractures due to a violent mechanism represent a distinct category of trauma patients with a unique profile of injuries.

Outcomes research: Mandibular fractures in the diabetic population.

OBJECTIVE: The study aimed to examine the management and outcomes of mandibular fractures in patients with diabetes mellitus by examining the injury modalities, treatment methods, and complications. METHODS: The study conducted was a retrospective case review of patients admitted to Memorial Hermann Hospital from 2007 to 2011 with diagnoses of diabetes mellitus and mandibular fracture. The electronic medical records were reviewed for patient demographics, injury data, surgery methodology, treatment variables, and complications. RESULTS: Out of the 34 diabetic patients, the average age was 52 with the majority of the fractures being the result of falls, 12 (35.3%). Of the 63 total fractures, 24 (38.1%) fractures were repaired through closed reduction and 39 (61.9%) fractures required open reduction with internal fixation. 17 (50.0%) patients had at least one complication following mandibular fracture repair. The most common complications in this sample population included nerve injury, 7 (20.6%), infection, 7 (20.6%), wound dehiscence with or without hardware exposure, 6 (17.7%), and malocclusion, 5 (14.7%). CONCLUSION: When compared to the limited published data our findings imply that diabetic patients with mandibular fractures present as an older population than commonly seen with mandibular fractures and suggest a higher overall rate of complications.

Acellular dermal matrix in the management of the burn patient.

Although the principles of burn management are still primarily focused on survival, as advances are realized in resuscitation, nutrition, and wound management, the functional and aesthetic outcomes following burn injury have become increasingly important. Acellular dermal matrix materials, which allow surgeons to minimize skin graft donor site morbidity in the process of repairing injured areas, play a role in addressing these important issues. Many favorable reports have been published, but they are generally characterized by small sample sizes, limited objective testing, and retrospective analysis. There does appear to be some evidence for ADM application in patient populations in whom donor site availability (those with massive burns) or morbidity (children, the elderly) is a concern, but more studies are needed. In this article, the authors discuss the current applications for ADM in burn management, review the existing literature, and present opportunities for future research.

Burn reconstruction: the problems, the techniques, and the applications.

Many patients continue to experience problems long after burn wounds have closed. Contracture and deformity are frequent sequelae of the scar tissue that is formed secondary to thermal trauma. A variety of techniques are available to the burn reconstructive surgeon, ranging from simpler grafting methods to complex free-tissue transfers. In this article, the clinical applications of these procedures are discussed, with examples of management techniques for selected problems commonly encountered by the reconstructive surgeon.