Caffeine in Skincare: Its Role in Skin Cancer, Sun Protection, and Cosmetics.

Caffeine is ubiquitous in our society-not only in the drinks consumed but also increasingly in dermatologic topicals. Given that coffee and caffeine are increasingly used for the production of many dermatologic anti-cancer topicals, sunscreens, and cosmetics, it is of imperative importance to review the basic science and clinical evidence for such claims. In this concise review, we outline the current evidence.

Treatment Delay in Melanoma: A Risk Factor Analysis of an Impending Crisis.

Risk factors associated with melanoma treatment delay (MTD) have been inadequately studied. To elucidate MTD associations based on patient and tumor characteristics, a retrospective cohort study was performed for cutaneous melanoma cases reported to the National Cancer Database (NCDB) between 2004 and 2015. We evaluated the number of days from diagnosis to treatment initiation, analyzing postponements more than 45 days as moderate MTD (mMTD) and postponements more than 90 days as severe MTD (sMTD). Greater MTD rates were independently associated with patients who are older than 50 years, female, nonwhite, not privately insured, and treated at an academic facility and who have more advanced tumor stage and head/neck primaries.

Association of CARD8 Activating Polymorphism With Bone Erosion in Cholesteatoma Patients.

OBJECTIVES: We compared the incidence of polymorphisms activating the NLRP3 inflammasome between controls and patients with cholesteatoma and its potential association with bone erosion in patients with cholesteatoma. METHODS: This is a case-control study assessing the mutation rates in genes of interest in patients with and without cholesteatoma. A total of 133 saliva samples from control (n = 65) and cholesteatoma (n = 68) patients were collected for DNA extraction. Caspase recruitment domain family member 8 (CARD8) (AA: homozygous wild type, AT: heterozygous, TT: homozygous mutant polymorphism) and NLRP3 (CC: homozygous wild type, CA: heterozygous, AA: homozygous mutant) polymorphisms were analyzed with TaqMan single-nucleotide polymorphism (SNP) quantitative polymerase chain reaction (ThermoFisher Scientific, Waltham, MA). Mutation status was correlated with a novel bone erosion scoring model developed as a part of this study. Summary statistics, including frequencies (%) and median (Q1, Q3) were used to describe the sample. RESULTS: The presence of CARD8 and NLRP3 homozygous wild-type polymorphisms were generally similar for the control and cholesteatoma patient groups. CARD8 homozygous TT polymorphisms were an exception, occurring more frequently in patients who developed a cholesteatoma compared to the control group (29% vs. 10%, P = .009). Those patients with CARD8 homozygous TT polymorphism had higher median scores of bone erosion as compared to subjects with nonhomozygous mutant genotypes (median [interquartile range]: 4.0 [3.0, 5.5] vs. 2.5 [1.0, 3.5], P = .0142). CONCLUSION: Cholesteatoma patients have a significant, twofold higher incidence of CARD8 homozygous TT polymorphism. Furthermore, cholesteatoma patients with this homozygous polymorphism had greater bone erosion rates than controls. These findings suggest that genetic mutations may increase host susceptibility to cholesteatomas. Specifically, the CARD8 TT polymorphism may influence the severity of cholesteatoma-induced bone erosion. LEVEL OF EVIDENCE: 3B.

Localized sebaceous carcinoma treatment: Wide local excision verses Mohs micrographic surgery.

The optimal surgical management of sebaceous carcinoma (SC) has yet to be determined between Mohs micrographic surgery (MMS) and wide local excision (WLE). To investigate overall survival (OS) differences for SC undergoing WLE or MMS, The National Cancer Database (NCDB) was queried for all SC from 2004 to 2015 (n = 2863). Cases missing staging data, undergoing palliative care, showing lymph node extension, or of AJCC Stage III/IV were omitted. Chi-squared tests were used to analyze patient demographics, cancer characteristics, and treatment modalities. Kaplan-Meier and Cox proportional hazards regression modeling analyzed OS outcomes. A total of 554 cases met inclusion criteria (WLE [n = 243], MMS [n = 311]). Multivariate analysis revealed that cases treated in academic facilities (ref: non-acad; OR = 2.273; CI95% [1.448-3.568]; P < .001] were independently associated with greater MMS rates, whereas those with primaries on the trunk (ref: head/neck OR = 0.359; CI95%[0.203-0.634]; P < .001) and extremities (ref: head/neck OR = 0.399; CI95% [0.182-0.877]; P = .022) held lower MMS rates. Between surgical modalities, Kaplan-Meier survival showed no significant difference in outcomes (P = .611), with WLE and MMS demonstrating 5-year OS rates of 65.8% and 61.4%, respectively. On Cox proportional hazard regression, the survival outcomes of MMS and WLE did not show any significant differences in OS (HR = 0.832; CI95% [0.996-3.662]; P = .334). MMS and WLE of localized SC demonstrate similar overall survival outcomes. MMS may be preferred for margin control, tissue conservation, and cosmesis.

Refusal of Cancer-Directed Surgery in Head and Neck Squamous Cell Carcinoma Patients.

OBJECTIVES/HYPOTHESIS: To investigate the risk factors for refusal of recommended surgery in head and neck squamous cell carcinoma (HNSCC) treatment STUDY DESIGN: Retrospective review of a national database. METHODS: The Surveillance, Epidemiology, and End Results database was queried for all cases of HNSCC from 1989 to 2014. Patients who underwent recommended surgery (N = 98,270) were identified and compared to patients who refused recommended surgery (N = 3,582). Groups were compared for patient demographics, socioeconomic variables, and tumor characteristics including stage, grade, and primary site. Binary logistic regression was performed to determine independent predictors of surgery refusal. RESULTS: Of the total population, 1.8% of patients refused cancer directed surgery. Following regression, the strongest predictors of surgery refusal were found to be age greater than 75years (odds ratio [OR]: 4.23 [95% confidence interval {CI}: 3.00-5.96]), and stage III (OR: 4.19 [95% CI: 3.15-5.57]) or stage IV at diagnosis (OR: 4.49 [95% CI: 3.46-5.80]). Black race was significantly predictive (OR: 1.71 [95% CI: 1.37-2.13]) as well as marital status other than married (OR: 1.76 [95% CI: 1.49-2.07]) and Medicaid insurance status (OR:1.46 [95% CI: 1.20-1.77]). Primary site of larynx (OR: 2.01 [95% CI: 1.71-2.37]) or base of tongue (OR: 2.34 [95% CI: 1.87-2.92]) additionally predicted surgery refusal. CONCLUSIONS: A number of demographic, socioeconomic, and tumor-related variables are associated with refusal of cancer-directed surgery in head and neck squamous cell carcinoma. Recognition of these factors may help identify situations where more active education and support are needed to help patients accept optimal care. LEVEL OF EVIDENCE: 4 Laryngoscope, 129:1368-1373, 2019.

The Impact of Duty-Hour Restrictions on Complication Rates Following Major Head and Neck Procedures.

OBJECTIVES/HYPOTHESIS: To assess the impact of resident duty-hour restrictions (DHR) in otolaryngology via comparison of postoperative outcomes between otolaryngology teaching hospitals (Oto-TH) and nonteaching hospitals (NTH) before and after complete implementation. STUDY DESIGN: Retrospective database review. METHODS: The Nationwide Inpatient Sample was queried for all major head and neck cases between 2000 and 2002 (n = 34,064) and 2008 and 2010 (n = 33,094). Cases were stratified into Oto-TH (n = 28,771) and NTH (n = 38,387) and assessed for procedure type, patient comorbidities, and complications. A subpopulation matched by procedure type was generated for direct comparison of complication rates using χ2 and binary logistic regression analyses. RESULTS: In the years following DHR, total case volume and average case complexity increased at Oto-TH only. Using a case-matched subpopulation, regression analysis found Oto-TH status to be protective for medical complications both before (odds ratio [OR]: 0.60, P < .001) and after (OR: 0.76, P = .001) DHR. In contrast, Oto-TH cases had lower risk for surgical complications in 2000 to 2002 (OR: 0.77, P < .001) but not 2008 to 2010 (OR: 1.07, P = .275). When comparing time periods, the years following DHR were associated with a significant decrease in medical complications and mortality across hospital cohorts. For surgical complications, rates significantly improved at NTH only (OR: 0.82, P = .002), with no difference at Oto-TH (OR: 0.95, P = .450). CONCLUSIONS: In the years following DHR, rates of medical complications, surgical complications, and mortality have significantly improved at NTH. At Oto-TH, there has been a lack of similar improvement in surgical complications, even after accounting for increasing case volume and complexity in more recent years. While the cause is likely multifactorial, DHR in otolaryngology residency may play a role. LEVEL OF EVIDENCE: 4 Laryngoscope, 128:2804-2810, 2018.