A Single-Institution Cohort Study With Nevi of Special Site: Recurrence, Progression to Melanoma, and Patterns of Management.

ABSTRACT: Nevi of specialized sites (NOSS) occur on the scalp, ears, flexural, acral, and genital areas and display atypical clinical and histologic features. We assessed NOSS recurrence and progression to melanoma, management patterns, and associations between histologic features and treatment recommendations. We queried all histologic diagnoses of NOSS (n = 275) from 2012 to 2017 from a large U.S. academic medical center with reference dermatopathology laboratory and matched these to clinical records. A blinded panel of dermatopathologists re-evaluated lesions, catalogued histologic findings, and gave management recommendation. Associations with dermatopathologist decision and concordance between new and original recommendations were assessed. Of 117 cases with follow-up, 2 locally recurred (1.46%) and none eventuated in melanoma. Clinical features were not associated with original treatment recommendations. After histopathologic review, large melanocytes [odds ratio ratio (ORR) = 8.00, 95% CI, 1.35-47.4] and junctional mitotic figures (ORR = 65.0, 6.5-650) predicted excision recommendation. Likewise, accumulation of many (>9) high-risk features was associated with excision recommendation. Panel review changed treatment recommendation in 27% of cases. Fair concordance existed between original and panel recommendations (κ = 0.29, 0.15-0.44). The low rate of recurrence and lack of melanoma occurrence suggest that despite an atypical clinical and histopathologic appearance, these nevi have limited potential for malignant transformation. Histopathologic findings seem to be principal drivers behind the recommendation for excision in this analysis. Variability existed in treatment recommendations; the panel's consensus recommendation tended to downgrade treatment. This highlights the importance of further outcomes-based studies to identify true high-risk features and refine management guidelines.

Ominous cutaneous presentation of acute myeloid leukemia without peripheral blood involvement upon initial presentation and relapse: case report and literature review.

Aleukemic leukemia cutis (ALC) is an extremely rare cutaneous manifestation of an aggressive systemic hematological malignancy, associated with dermal infiltration by leukemic cells preceding peripheral blood involvement. This condition is associated with poor outcome, and dermatologists are often responsible for making the initial diagnosis in a timely fashion. To describe a case of ALC and review the literature with an emphasis on the clinical features, summarizing the cutaneous manifestations of this rare systemic disorder. Electronic searches were performed in PubMed and Embase for published studies and case reports in English from 1970 to 2017. The presented case is a 46-year-old male with numerous asymptomatic skin-colored papules, plaques, and subcutaneous nodules with no detectable peripheral blood involvement, who was treated and subsequently relapsed twice with no evidence of peripheral blood or bone marrow involvement. Based on the review, skin nodules were the most common physical exam finding, comprising 27 cases (62.8%). The most common anatomic locations of cutaneous findings were the trunk and extremities, occurring in 23 (53.5%) and 20 (46.5%) cases, respectively. Since the cutaneous presentation of ALC is notably variable, a high degree of clinical suspicion is required. In view of this case and review of the literature, leukemia cutis should be included in the differential diagnosis of evolving, infiltrative cutaneous nodules or plaques, triggering an evaluation of the bone marrow and peripheral blood when the pathologic features raise concern for this disorder.

Using quality improvement to optimise paediatric discharge efficiency.

BACKGROUND: Bed capacity management is a critical issue facing hospital administrators, and inefficient discharges impact patient flow throughout the hospital. National recommendations include a focus on providing care that is timely and efficient, but a lack of standardised discharge criteria at our institution contributed to unpredictable discharge timing and lengthy delays. Our objective was to increase the percentage of Hospital Medicine patients discharged within 2 h of meeting criteria from 42% to 80%. METHODS: A multidisciplinary team collaborated to develop medically appropriate discharge criteria for 11 common inpatient diagnoses. Discharge criteria were embedded into electronic medical record (EMR) order sets at admission and could be modified throughout a patient's stay. Nurses placed an EMR time-stamp to signal when patients met all discharge goals. Strategies to improve discharge timeliness emphasised completion of discharge tasks prior to meeting criteria. Interventions focused on buy-in from key team members, pharmacy process redesign, subspecialty consult timeliness and feedback to frontline staff. A P statistical process control chart assessed the impact of interventions over time. Length of stay (LOS) and readmission rates before and after implementation of process measures were compared using the Wilcoxon rank-sum test. RESULTS: The percentage of patients discharged within 2 h significantly improved from 42% to 80% within 18 months. Patients studied had a decrease in median overall LOS (from 1.56 to 1.44 days; p=0.01), without an increase in readmission rates (4.60% to 4.21%; p=0.24). The 12-month rolling average census for the study units increased from 36.4 to 42.9, representing an 18% increase in occupancy. CONCLUSIONS: Through standardising discharge goals and implementation of high-reliability interventions, we reduced LOS without increasing readmission rates.

Rapid implementation of evidence-based guidelines for imaging after first urinary tract infection.

BACKGROUND AND OBJECTIVES: The American Academy of Pediatrics published a new guideline for management of first urinary tract infection (UTI) in children aged 2 to 24 months in September 2011. The imaging evaluation changed from the previous guideline to recommend voiding cystourethrogram (VCUG) only for patients with an abnormal renal and bladder ultrasound (RBUS). The objective was to decrease the proportion of guideline-eligible children with a normal RBUS who underwent VCUG from median of 92% for patients treated as inpatients and 100% for patients treated in the emergency department to 5% in both settings. METHODS: This was a quality improvement implementation study in a large academic medical center. Key drivers included: appropriate guideline knowledge, timely identification of guideline eligible patients, and effective communication with the community-based primary care provider. A multidisciplinary team developed and tested interventions. Impact was assessed with annotated run charts. Statistical comparisons were made with χ(2) analysis and Fisher's exact test. RESULTS: The proportion of children with first UTI and normal RBUS who underwent VCUG decreased from a median of 92% to 0% within 1 month of initiating the project among those hospitalized and from 100% to 40% within 4 months among those diagnosed in the emergency department. Rates have been sustained for 12 months and 8 months, respectively. Interventions using the electronic medical record and ordering system were most impactful. CONCLUSIONS: Rapid adoption of evidence-based UTI care across multiple settings is achievable. Practice change occurred faster and to a greater magnitude in the inpatient setting compared with the outpatient setting.

Photosensitivity: a current biological overview.

CONTEXT: The level of interest in photoirritation (phototoxicity) has increased because of the awareness among the scientific community of the increase in the UV portion of the solar spectrum reaching the earth. The need of new chemicals and drugs puts pressure on pre-test methods for side effects, especially interactive adverse effects with UV light. So pre-marketing clinical trials conducted before a new drug is licensed are essential, as such, at the early phases of the discovery process of the drug/chemical, developing an efficacious photosensitivity testing system is prudent to avoid such potential side effects. OBJECTIVES: To review published literature and provide an overview on exogenous photosensitivity and assays used to evaluate the photosensitivity potential of drugs/chemicals. As well as testing considerations by the Regulatory bodies (namely, the Organization for Economic Cooperation and Development, the U.S Food and Drug Administration and the European Union regulatory agencies). MATERIALS AND METHODS: We searched medical and scientific search engines as well as websites of the EU and US Regulatory agencies and used keywords such as cutaneous phototoxicity, phototoxicity in vitro assays, phototoxicity in vivo assays and other related terms.

Errors of diagnosis in pediatric practice: a multisite survey.

OBJECTIVE: We surveyed pediatricians to elicit their perceptions regarding frequency, contributing factors, and potential system- and provider-based solutions to address diagnostic errors. METHODS: Academic, community, and trainee pediatricians (N = 1362) at 3 tertiary care institutions and 109 affiliated clinics were invited to complete the survey anonymously through an Internet survey administration service between November 2008 and May 2009. RESULTS: The overall response rate was 53% (N = 726). More than one-half (54%) of respondents reported that they made a diagnostic error at least once or twice per month; this frequency was markedly higher (77%) among trainees. Almost one-half (45%) of respondents reported diagnostic errors that harmed patients at least once or twice per year. Failure to gather information through history, physical examination, or chart review was the most-commonly reported process breakdown, whereas inadequate care coordination and teamwork was the most-commonly reported system factor. Viral illnesses being diagnosed as bacterial illnesses was the most-commonly reported diagnostic error, followed by misdiagnosis of medication side effects, psychiatric disorders, and appendicitis. Physicians ranked access to electronic health records and close follow-up of patients as strategies most likely to be effective in preventing diagnostic errors. CONCLUSION: Pediatricians reported making diagnostic errors relatively frequently, and patient harm from these errors was not uncommon.