Use of Radiation Therapy in the Management of Vulvar Cancers-Identification and Management of Acute and Late Toxicities.

Radiation therapy plays a critical role in the management of locally advanced vulvar cancers but can lead to a unique spectrum of side effects, with >25% of patients experiencing high-grade toxicities. The treatment phase requires meticulous perineal skincare and may require pharmacologic management of dysuria and cystitis, diarrhea, nausea, and dermatitis/mucositis. The addition of chemotherapy warrants close laboratory monitoring for hematologic and metabolic derangements.

Patient characteristics and treatment patterns of patients with locally advanced or metastatic HER2-low breast cancer, a single site descriptive study.

PURPOSE: To evaluate the prevalence and characteristics of different HER2 categories among patients with advanced breast cancer (aBC) and describe treatment patterns and outcomes of those with HER2-low disease. METHODS: A retrospective cohort study was conducted via chart review at the Huntsman Cancer Institute, including patients diagnosed with aBC (stages IIIB, IIIC and IV) between 2010 and 2019. All patients with IHC1+ were considered HER2-low unless FISH was positive. Patients with IHC2+ were only classified as HER2-low if a negative FISH was documented. The prevalence and characteristics of each HER2 category were reported. Treatment patterns and survival outcomes of HER2-low patients who received first line treatment in 2017 or later were presented. RESULTS: A total of 240 of 414 patients (58%) with aBC were HER2-low, with the majority of patients (83%) classified as hormone receptor (HR)-positive. In first line, most HR-positive patients received endocrine therapy with chemotherapy for stage IIIB/IIIC (47%) and with CDK4/6 inhibitors for stage IV breast cancer (50%) Most HR-negative patients received chemotherapy alone (92% for stage IIIB/IIIC, 60% for stage IV). In second line, chemotherapy alone was the most common modality (21.4% for HR-positive; 45.5% for HR-negative). Median overall survival was 37.7 months while median progression-free survival from first line was 18.0 months, decreasing to 8.0 months in second line. CONCLUSION: A substantial proportion of patients previously classified as HER2-negative have low but detectable HER2 expression and may benefit from novel HER2-directed agents, which have demonstrated clinical benefit in this population post-chemotherapy.

Defining blood hematology reference values in female pig-tailed macaques (Macaca nemestrina) using the Isolation Forest algorithm.

BACKGROUND: Pig-tailed macaques (PTMs) are commonly used as preclinical models to assess antiretroviral drugs for HIV prevention research. Drug toxicities and disease pathologies are often preceded by changes in blood hematology. To better assess the safety profile of pharmaceuticals, we defined normal ranges of hematological values in PTMs using an Isolation Forest (iForest) algorithm. METHODS: Eighteen female PTMs were evaluated. Blood was collected 1-24 times per animal for a total of 159 samples. Complete blood counts were performed, and iForest was used to analyze the hematology data to detect outliers. RESULTS: Median, IQR, and ranges were calculated for 13 hematology parameters. From all samples, 22 outliers were detected. These outliers were excluded from the reference index. CONCLUSIONS: Using iForest, we defined a normal range for hematology parameters in female PTMs. This reference index can be a valuable tool for future studies evaluating drug toxicities in PTMs.

Breast Cancer is Increased in Women with Primary Ovarian Insufficiency.

CONTEXT: DNA damage/repair gene variants are associated with both primary ovarian insufficiency (POI) and cancer risk. OBJECTIVE: We hypothesized that a subset of women with POI and family members would have increased risk for cancer. DESIGN: Case-control population-based study using records from 1995-2022. SETTING: Two major Utah academic healthcare systems serving 85% of the state. SUBJECTS: Women with POI (n=613) were identified using ICD codes and reviewed for accuracy. Relatives were linked using the Utah Population Database. INTERVENTION: Cancer diagnoses were identified using the Utah Cancer Registry. MAIN OUTCOME MEASURES: The relative risk of cancer in women with POI and relatives was estimated by comparison to population rates. Whole genome sequencing was performed on a subset of women. RESULTS: Breast cancer was increased in women with POI (OR [95%CI] 2.20 [1.30, 3.47]; p=0.0023) and there was a nominally significant increase in ovarian cancer. Probands with POI were 36.5±4.3 years and 59.5±12.7 years when diagnosed with POI and cancer, respectively. Causal and candidate gene variants for cancer and POI were identified.Among second-degree relatives of these women, there was an increased risk of breast (1.28 [1.08, 1.52]; p=0.0078) and colon cancer (1.50 [1.14, 1.94]; p=0.0036). Prostate cancer was increased in first- (1.64 [1.18, 2.23]; p=0.0026), second- (1.54 [1.32, 1.79]; p<0.001), and third-degree relatives (1.33 [1.20, 1.48]; p<0.001). CONCLUSIONS: Data suggest common genetic risk for POI and reproductive cancers. Tools are needed to predict cancer risk in women with POI and potentially to counsel about risks of hormone replacement therapy.

Time and Note Characteristic Effects of an Electronic Health Record Template for Internal Medicine Resident Notes.

Background Inpatient internal medicine (IM) residents spend most of their time on indirect patient care activities such as clinical documentation. Objective We developed optimized electronic health record (EHR) templates for IM resident admission and progress notes, with the objective to reduce note-writing time, shorten note length, and decrease the percentage of progress note text that was copy-forwarded from prior notes. Methods In 2022, a multidisciplinary team created, over an 8-month period, optimized EHR templates for IM resident admission and progress notes. A retrospective analysis was performed to assess differences in resident time spent writing notes, note length in characters, and percentage of progress note text that was copy-forwarded. All 94 residents in the IM residency program had the opportunity to use the novel templates. Results Following implementation of the novel templates, residents spent on average 3.6 minutes less per progress note compared to pre-intervention (P=.008; 95% CI of the difference: 1.1-6.0 minutes). Notes in the post-intervention period were shorter for admission notes (mean reduction of 1041 characters; P<.001; 95% CI of the difference: 448-1634 characters) and progress notes (mean reduction of 764 characters; P<.001; 95% CI of the difference: 103-1426 characters). Progress notes also saw an average 22% decrease of copy-forwarded text (P<.001, 95% CI of the difference: 18.7%-25.4%). Conclusions The optimized note templates led to a reduction in resident progress note-writing time, shortened note length, and a lower percentage of copy-forwarded text.

Candida auris outbreak at a tertiary care hospital during the COVID-19 pandemic.

BACKGROUND: Candida auris (C auris) is a fungal pathogen that has the potential for environmental persistence leading to outbreaks in health care settings. There has been a worldwide surge in C auris outbreaks during the COVID-19 pandemic. In this report, we describe an outbreak of C auris, its control, patient outcomes, and lessons learned. METHODS: The outbreak occurred in a 600-bed adult academic tertiary care hospital. Contact tracing was initiated immediately after identification of the index case and surveillance testing for C auris was obtained from patients who were exposed to the index case. Infection prevention measures were closely followed. RESULTS: A total of 560 cultures were performed on 453 unique patients between August 2021 and December 2021. Of those, 31 cultures (5.5%) were positive for C auris; 27 (87.1%) were colonized with C auris, while 4 patients developed a clinical infection (12.9%). The secondary attack rate was 6.8% (31/453). The 30-day all-cause mortality rate for all patients who tested positive for C auris was 9.7%. DISCUSSION: C auris can cause protracted outbreaks that result in colonization and invasive infections. Multidisciplinary work to improve adherence to infection prevention measures as well as targeted admission screening are essential to limit outbreaks.