Faculty Bibliography

OBJECTIVE:The objective of this study was to examine the use and outcomes of perioperative anticoagulation (AC) in obese patients with a known history of venous thromboembolism event (VTE). METHOD/METHODS:A retrospective review of a prospective database for patients with a VTE history undergoing bariatric and general surgery at a single center (1/2008-12/2017) was performed. Factors assessed included demographics, surgical details, and outcomes. RESULTS:Sixty-five patients underwent 76 procedures: 46 females (71%); mean age 51 years (range 26-73), mean weight 284 pounds (range 110-558), mean body mass index 45 (range 19-87). Comorbidities include hypertension (60%), gastroesophageal reflux disease (54%), osteoarthritis (49%), obstructive sleep apnea (45%), and diabetes (37%). Operations: 22 general surgeries (29%), 20 sleeve gastrectomies (26%), 12 revisions/conversions (16%), 12 Roux-en-Y gastric bypasses (16%), and 10 gastric bands (13%). Modalities: 67% laparoscopic, 28% robotic, and 5% open. Twenty-two patients (34%) had a pre-operative inferior vena cava filter placed with no complications. The mean length of stay was 4.4 days (range 1-31). Complications: seven 30-day readmissions (9%), one 30-day reoperation (1%), and two 90-day VTEs (3%). Thirty-day readmissions: four for inability to tolerate PO, two for small bowel obstruction, and one for symptomatic anastomotic ulcer. CONCLUSIONS:In our patients, post-operative AC could be started without an increased risk of bleeding in patients with a history of VTE undergoing bariatric surgery.

PURPOSE/OBJECTIVE:Percentage of positive cores involved on a systemic prostate biopsy has been established as a risk factor for adverse oncologic outcomes and is a National Comprehensive Cancer Network (NCCN) independent parameter for unfavorable intermediate-risk disease. Most data from a radiation standpoint was published in an era of conventional fractionation. We explore whether the higher biological dose delivered with SBRT can mitigate this risk factor. METHODS:A large single institutional database was interrogated to identify all patients diagnosed with localized prostate cancer (PCa) treated with 5-fraction SBRT without ADT. Pathology results were reviewed to determine detailed core involvement as well as Gleason score (GS). High-volume biopsy core involvement was defined as ≥ 50%. Weighted Gleason core involvement was reviewed, giving higher weight to higher-grade cancer. The PSA kinetics and oncologic outcomes were analyzed for association with core involvement. RESULTS:From 2009 to 2018, 1590 patients were identified who underwent SBRT for localized PCa. High-volume core involvement was a relatively rare event observed in 19% of our cohort, which was observed more in patients with small prostates (p < 0.0001) and/or intermediate-risk disease (p = 0.005). Higher PSA nadir was observed in those patients with low-volume core involvement within the intermediate-risk cohort (p = 0.004), which was confirmed when core involvement was analyzed as a continuous variable weighted by Gleason score (p = 0.049). High-volume core involvement was not associated with biochemical progression (p = 0.234). CONCLUSIONS:With a median follow-up of over 4 years, biochemical progression was not associated with pretreatment high-volume core involvement for patients treated with 5-fraction SBRT alone. In the era of prostate SBRT and MRI-directed prostate biopsies, the use of high-volume core involvement as an independent predictor of unfavorable intermediate risk disease should be revisited.

BACKGROUND:In the United States, uptake of human papillomavirus (HPV) vaccination has been exceptionally low as compared with other vaccines. During the coronavirus disease (COVID-19) pandemic, routine vaccinations were deferred or delayed, further exacerbating HPV vaccine hesitancy. The specific effect of the pandemic on HPV vaccination rates in the United States has not been yet described. METHODS:We aimed to determine the percentage of children achieving full HPV vaccination (2 doses) by age 15 years and to compare prepandemic to pandemic rates of HPV vaccination at pediatric practices across our institution. A retrospective chart review was performed to compare HPV vaccination rates in the "prepandemic" and "pandemic" periods for all children 9 through 14 years of age. Additionally, peaks in COVID-19 positivity were compared with HPV vaccination rates. RESULTS:Of children 9-14 years old, 49.3% received at least 1 dose of HPV vaccine in the prepandemic period, compared with 33.5% during the pandemic ( P < 0.0001). Only 33.5% of patients received the full 2-dose series of HPV prepandemic, compared with 19.0% of patients during the pandemic ( P < 0.0001). When COVID-19 positivity rates peaked, HPV vaccination also declined. CONCLUSIONS:The issue of low HPV vaccination rates was amplified due to the COVID-19 pandemic, as illustrated by the correlation between peaks in COVID-19 positivity and low rates of HPV vaccination.

PURPOSE/OBJECTIVE:Historically, toxicity concerns have existed in patients with large prostate glands treated with radiation therapy, particularly brachytherapy. There are questions whether this risk extends to stereotactic body radiation therapy (SBRT). In this retrospective review, we examine clinical outcomes of patients with prostate glands ≥100 cc treated curatively with SBRT. METHODS AND MATERIALS/METHODS:We retrospectively analyzed a large institutional database to identify patients with histologically confirmed localized prostate cancer in glands ≥100 cc, who were treated with definitive-robotic SBRT. Prostate volume (PV) was determined by treatment planning magnetic resonance imaging. Toxicity was measured using Common Terminology Criteria for Adverse Events, version 5.0. Many patients received the Expanded Prostate Cancer Index Composite Quality of Life questionnaires. Minimum follow-up (FU) was 2 years. RESULTS:Seventy-one patients were identified with PV ≥100 cc. Most had grade group (GG) 1 or 2 (41% and 37%, respectively) disease. All patients received a total dose of 3500 to 3625 cGy in 5 fractions. A minority (27%) received androgen deprivation therapy (ADT), which was used for gland size downsizing in only 10% of cases. Nearly half (45%) were taking GU medications for urinary dysfunction before RT. Median toxicity FU was 4.0 years. Two-year rates of grade 1+ genitourinary (GU), grade 1+ gastrointestinal (GI), and grade 2+ GU toxicity were 43.5%, 15.9%, and 30.4%, respectively. Total grade 3 GU toxicities were very limited (2.8%). There were no grade 3 GI toxicities. On logistic regression analysis, pretreatment use of GU medications was significantly associated with increased rate of grade 2+ GU toxicity (odds ratio, 3.19; P = .024). Furthermore, PV (analyzed as a continuous variable) did not have an effect on toxicity, quality of life, or oncologic outcomes. CONCLUSIONS:With early FU, ultra large prostate glands do not portend increased risk of high-grade toxicity after SBRT but likely carry an elevated risk of low-grade GU toxicity.

INTRODUCTION/UNASSIGNED:Infants commonly require phototherapy in the nursery to prevent kernicterus, but it can interfere with parent-infant bonding. Minimizing unnecessary phototherapy is important. We noticed frequent delays in initiating and discontinuing phototherapy at our hospital. Our primary aim was to start or stop phototherapy within 3 hours of the intended blood draw time for more than 80% of patients by August 2022. Our secondary aims were to have the bilirubin result available within two hours of the intended draw time and for the result to be actioned upon within 1 hour of becoming available. METHODS/UNASSIGNED:We audited all patients requiring phototherapy, from January 2021 to December 2021 (n = 250). In PDSA cycle 1, we used electronic medical record result alerts. In cycle 2, we educated residents on the importance of acting promptly on results. In cycle 3, we asked residents to message the nurse to alert them to any laboratory draws for that shift. In cycle 4, we implemented a standardized laboratory draw policy. RESULTS/UNASSIGNED:We increased the percentage of results acted upon within 3 hours from 56% to more than 80%. We also reduced the mean time from blood draw to action from 184 minutes to 134 minutes. The time from intended draw to result availability decreased from 115 minutes to 95 minutes, and the time to action decreased from 67 minutes to 42 minutes. CONCLUSIONS/UNASSIGNED:Combining resident education, electronic medical record result alerts, and policy standardization allowed us to achieve our stated aim and improved care for our neonates.

BACKGROUND:The 2021 International Society on Thrombosis and Haemostasis' (ISTH) recommends standard doses of apixaban and rivaroxaban regardless of high body mass index (BMI) and weight, but had not compare DOACs head-to-head in obesity or address underweight patients. METHODS:Our aim is to evaluate the safety and efficacy of DOACs in underweight and obese patients compared to warfarin. The primary endpoints include incidence of thromboembolic and bleeding events. Descriptive statistics was used for continuous variables. The Kruskal-Wallis test was used to compare the four-groups for continuous measures and the chi-square test or Fisher's exact test was used to analyze categorical data. The chi-square test or Fisher's exact test, was used for categorical variables, and the Mann-Whitney test (the non-parametric counterpart to the two-sample t-test) for continuous data. RESULTS:Of 2940 patients receiving anticoagulation for venous thromboembolism (VTE) treatment or atrial fibrillation (AF), 492 met eligibility criteria. Within each group, 248 patients received warfarin, 101 received apixaban, 100 received rivaroxaban and 43 received dabigatran. Patients were characterized in 4 body mass index (BMI) categories, in which 80 were underweight and 412 were obese. CONCLUSIONS:When each DOAC was compared to warfarin in rates of VTE, apixaban showed statistically significant lower rate of VTE (p = 0.0149). However, no statistical significance was identified in the rate of VTE between DOACs combined vs. warfarin (p = 0.1529). When each DOAC was compared to warfarin, apixaban showed the lowest rate of overall bleeding (p = 0.0194). However, no statistical difference in the rate of bleeding was observed between DOACs combined vs. warfarin (p = 0.3284). Patients with extreme body weights requiring anticoagulation for VTE and AF may safety benefit from DOAC therapy. This evaluation showed apixaban with the lowest rate of VTE and bleeding compared to warfarin, rivaroxaban, and dabigatran. These results provide experience for the clinician to use DOACs, particularly apixaban, in underweight and obese populations.

[This corrects the article DOI: 10.3389/fonc.2023.1132777.].