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Laryngeal inhalation injury carries a significant increase in mortality rate and often indicates immediate airway evaluation. This may be difficult in the setting of clinical deterioration necessitating immediate intubation, which itself can synergistically cause mucosal damage. Prior studies do not encompass predictive factors or long-term outcomes for the laryngotracheal complex. This systemic review of PubMed, Embase, and Cochrane identified studies investigating inhalational injuries of the upper airway. Demographic data as well as presentation, physical findings, and delayed sequelae were documented. Laryngotracheal burn patients were divided into two cohorts based on timing of laryngeal injury diagnosis (before- versus after-airway intervention). 1051 papers met initial search criteria and 43 studies were ultimately included. Airway stenosis was more common in patients that were intubated immediately (50.0%, n = 18 versus 5.2%, n = 13; p = 0.57). Posterior glottic involvement was only identified in patients intubated prior to airway evaluation (71.4%, n = 15). All studies reported a closed space setting for those patients in whom airway intervention preceded laryngeal evaluation. Laryngeal inhalational injuries are a distinct subset that can have a variety of minor to severe laryngotracheal delayed sequelae, particularly for thermal injuries occurring within enclosed spaces. Given these findings, early otolaryngology referral may mitigate or treat these effects.

Postoperative prescription narcotics increase access to opioids and associated abuse among patients, family, and acquaintances. Judicious opioid stewardship is required. Best practice questions remain for larger head and neck surgeries. We aim to review opioid utilization patterns in an urban patient population to identify patients at risk for poor postoperative pain control.Case series with planned chart review for patients undergoing head and neck surgery (2015-2018).Single urban hospital.Outcome measures included postoperative phone calls and emergency room visits as markers for inadequate pain control. Age, sex, race, body mass index (BMI), smoking status, comorbidities, prior narcotic filling behavior, surgery type, and duration were evaluated as potential risk factors for pain control. Chi-square and Wilcoxon tests were used for group comparisons.In total, 215 patients met inclusion criteria: male (22%), white/Hispanic (47%), and African American (44%). Median BMI was 31.6 kg/mFemale sex, younger age, smokers, and high inpatient opioid dose requirements are associated with inadequately controlled pain. These patients may benefit from additional education, earlier postoperative visits, and a more comprehensive nonopioid regimen.

BACKGROUND: Pancreatic adenocarcinoma (PCA) incidence is higher in Black compared to White patients. Beyond race, neighborhood socioeconomic status (nSES) may also inform disparities. However, these effects on metastatic pancreatic adenocarcinoma (mPCA) are not well-studied. The aim of this study was to explore whether nSES influences survival in patients with mPCA. METHODS: nSES measures were derived from U.S. census data at the census tract (CT) level. We correlated medical records of mPCA patients (diagnosed 2010-2016; n=370) to nSES measures retrospectively via a geocode derived from patient address. Multivariable cox proportional hazards models were used to identify patient-level (age, sex, race, marital status, treatment (radiation/chemo/surgery), PCA family history, stage, Jewish ancestry, tobacco use, BMI, diabetes, and statin use) and nSES measures (deprivation, racial concentration, stability, transportation access, immigration) associated with mPCA survival; P values

232 Background: The incidence of VTE is relatively high among mPC pts, upto 57%. It is associated with higher health care burden and mortality. We evaluated the mPC pts treated at a single academic center from 2010-16 for prevalence of VTE, its impact on survival and possible risk factors. Methods: Medical charts of mPC pts treated at a single academic center were analyzed retrospectively for VTE diagnosis, overall survival and potential risk factors for VTE development. The factors considered were: age, sex, stage, body mass index, smoking status, surgery, performance status (PS), Charlson comorbidity index (CCI) and treatment. Logistic regression was used to identify the factors correlating with VTE and Cox Proportional Hazard model was used to evaluate overall survival (OS) differences between those with VTE (Gp A) and those without VTE (Gp B). Results: Out of the 439 mPC pts (52% males, 86% with PS0-1, 63% with stage IV at diagnosis), 127 (29%) were in Gp A and 312 (71%) in Gp B. The groups were well balanced with respect to all factors except age (median age 67 Gp A; 65 in Gp B, p = 0.04). 2.3 % of pts in Gp A and 4.8 % pts in Gp B were on anticoagulation for reason other than VTE treatment. Within Gp A, 55% developed VTE after diagnosis of metastasis. A clear separation of the survival curves noted beyond the median OS (9 m, P = 0.02), favoring GpB. Statistically significant factors associated with risk of VTE included advanced stage at diagnosis (P = 0.004) and worse PS (P = 0.005). Treatment regimen used and CCI didn’t correlate with the risk of development of VTE. Conclusions: The incidence rate of VTE in our patients is lower than published literature, yet the diagnosis of VTE was associated with worse OS. Most cases occurred after the diagnosis of metastatic disease. The higher use of anticoagulants for other medical causes may be contributing to a lower incidence of VTE in mPC. These findings need prospective Validation.

358 Background: The median age at diagnosis for metastatic pancreatic cancer (mPC) is 72. Gemcitabine and Nab-Paclitaxel (GA) is often the preferred chemo regimen in this population due to presumed reduced toxicity compared with FOLFIRINOX. While the traditional GA schedule (TDS) includes treatment on days 1, 8, and 15 of a 28-day cycle, it can cause side effects and patients often require dose reductions. There is data for a modified dosing schedule (MDS) treating only on day 1 and 15. Therefore, we retrospectively analyzed our older adults treated with GA using the TDS versus the MDS and compared tolerability and outcomes between the two groups. Methods: We identified pts with mPC >64 y/o treated with GA at Fox Chase Cancer Center between 1/2010 - 7/2018 and collected their demographic, disease and treatment information. We analyzed discrete variables using Fisher’s exact test and continuous variables using Wilcoxon tests. Overall survival (OS) was analyzed by the Kaplan-Meier method and Cox proportional hazards regression. Results: Fifty-six pts were identified with a median age at diagnosis of 71 (range: 64-90) and 67.8% with metastatic disease at presentation. 57% received GA in the first line. 44% were treated with TDS while 56% received a MDS; an older median age was seen in the MDS group (73 vs 69 y/o, p

208 Background: Incidence rates of pancreatic adenocarcinoma (PAC) are higher in Black compared to White patients (pts). Beyond race, exposure to poor neighborhoods or social environments also contribute to cancer disparities. However, social environmental effects on PAC are not well-studied. Social environment is defined as: 1) a neighborhood’s socioeconomic conditions (SES; i.e. a combination of education, income, poverty and employment levels); 2) racial segregation (RS) or the degree of isolation/separation of race/ethnic groups in a neighborhood. The goal of our study is to investigate whether poor social environments impact survival in a clinic population with metastatic PAC. Methods: Neighborhood SES and RS measures were derived from US census data (2011-2015) at the census tract level, which is a smaller geographic area than a county. Patient (pt) addresses were used to generate a geocode that identifies the census tract or neighborhood in which a pt lives. We joined medical records of PAC pts (n = 374; diagnosed 2010-2016 at Fox Chase Cancer Center) to neighborhood measures via the geocode. Pt variables included in the analysis were: age, sex, race, marital status, treatment, PAC family history, stage, Jewish ancestry, tobacco use and Charlson comorbidity index. Multivariable cox proportional hazards models with cluster adjustments were used and variables with p-values < 0.05 were considered significant. Results: 342 PAC deaths occurred and median survival was 12m. 81% of pts were White; < 40% resided in poor social environments (i.e. low SES or high RS). In multivariable analyses stratified by RS, median survival was lower in pts from high RS (11m) vs low RS areas (13m); however, this difference was not significant (p = 0.27). Variable effects differed by high/low RS. In high RS areas, sex, surgery, chemo, diabetes and neighborhood SES were significant predictors of survival; in low RS areas, surgery, chemo, radiation, PAC family history, tobacco use, Jewish ancestry and race were significant. Conclusions: While social environment did not appear to significantly affect survival time in metastatic pts, its potential moderating (interaction) effects on variable associations with PAC warrant further investigation.