We sought to compare the effectiveness and efficiency of the superpulse thulium fiber laser (sTFL to the holmium: yttrium-aluminum-garnet [Ho:YAG] laser for ureteroscopic "dusting" of implanted renal stones in an porcine model. Twenty-four porcine kidneys (12 juvenile female Yorkshire pigs) were randomized to Ho:YAG or sTFL treatment groups. Canine calcium oxalate stones were scanned with computed tomography to calculate stone volume and stone density; the stones were randomized and implanted into each renal pelvis via an open pyelotomy.
View Article and Find Full Text PDFThe creation of synthetic reservoirs for bladder replacement has been limited by challenges of interfacing synthetic materials and native tissue. We sought to overcome this challenge by utilizing a novel bilayer silk fibroin scaffold (BLSF) as an intermediary toward the development of an acellular prosthetic reservoir. Under institutionally approved protocols, 3D-printed reservoirs were implanted in six juvenile female pigs after cystectomy.
View Article and Find Full Text PDFLarger ureteral access sheaths (UASs) have the potential to improve ureteroscopic stone removal outcomes but are often avoided by surgeons because of concerns of ureteral injury. Using our novel UAS force sensor and previously defined force thresholds for ureteral injury, we sought to evaluate the impact of 1 week of stenting on the maximum safe dilation of ureteral luminal circumference. Twelve juvenile female Yorkshire pigs (24 ureters) were evaluated.
View Article and Find Full Text PDFObjective: To determine a) if surgical skills among urology resident applicants could be reliably assessed via crowdsourcing and b) to what extent surgical skills testing impacts resident selection.
Design: Interviewees completed the following surgical skills tasks during their interview day: open knot tying (OKT), laparoscopic peg transfer (LPT), and robotic suturing (RS). Urology faculty and crowd-workers evaluated each applicant's video-recorded performance using validated scoring and were assessed for agreement using Cronbach's alpha.
Contemporary, flexible stone baskets are unable to extract submillimeter stone fragments at the time of ureteroscopic laser lithotripsy. In this study, the feasibility of suctioning submillimeter fragments with a standard Luer Lock syringe through the working channel of a flexible ureteroscope was assessed. Phantom stones made from industrial plaster were mechanically fragmented into ≤1 and ≤0.
View Article and Find Full Text PDFA 74-year-old Caucasian man with poorly controlled diabetes and hypertension was seen in the dermatology clinic for treatment of a nodular basal cell carcinoma on his right temple. He had poorly controlled diabetes for decades and had been insulin dependent for 20 to 25 years. He had not been on any anticoagulation therapy in the past or present and had no history of a hematologic disorder.
View Article and Find Full Text PDFCancer Epidemiol Biomarkers Prev
October 2017
Mammographic density (MD) is associated with increased breast cancer risk, yet limited data exist on an association between MD and breast cancer molecular subtypes. Women ages 18 years and older with breast cancer and available mammograms between 2003 and 2012 were enrolled in a larger study on MD. MD was classified by the Breast Imaging Reporting and Data System (BI-RADS) classification and by volumetric breast percent density (Volpara Solutions).
View Article and Find Full Text PDFHemophagocytic lymphohistiocytosis (HLH) is a rare, life-threatening hyperinflammatory syndrome characterized by uncontrolled activation and proliferation of proinflammatory cytokines. Initial presentation commonly includes fever, hepatosplenomegaly, and pancytopenia; 6 to 65% of cases also have a concurrent cutaneous eruption. We present the case of a 6-day-old premature infant boy with congenital severe thrombocytopenia, anemia, and hepatosplenomegaly who presented with several cutaneous violaceous papules and nodules and was found to have HLH.
View Article and Find Full Text PDFA 27-year old male with Hodgkin's lymphoma was treated with combined chemotherapy that included bleomycin. He presented with pruritic erythematous, edematous linear lesions and was diagnosed to have flagellate hyperpigmentation, a rare side effect of bleomycin chemotherapy.
View Article and Find Full Text PDFDermatopathology (Basel)
May 2016
Pagetoid reticulosis is a rare variant of mycosis fungoides that presents with a large, usually single, erythematous, slowly growing scaly plaque containing an intraepidermal proliferation of neoplastic T lymphocytes. Histopathologically, this disease has distinctive attributes. In this report, we present two cases of pagetoid reticulosis, compare its microscopic features to those of 'classical' mycosis fungoides, and provide a brief review of the pertinent literature.
View Article and Find Full Text PDFHair follicle nevi are rare, benign, congenital hamartomas that usually occur in the distribution of the first brachial arch. Histopathologically, the distinction between hair follicle nevus, trichofolliculoma, and accessory tragus has recently come into question, and it may be that they are all on a spectrum of the same condition. We report the case of a 7-day-old boy who presented with a "tag"-like lesion on his midline chin that had been present since birth.
View Article and Find Full Text PDFBackground: Limited and conflicting data exist on an association between mammographic density (MD) and re-excision rates after breast-conserving surgery (BCS). Additionally, the correlation of MD with resection of unnecessary margins during initial BCS is unknown.
Methods: All women with a diagnosis of breast cancer from 2003 to 2012 and enrolled in a larger study on MD were evaluated.
Importance: Nephrogenic systemic fibrosis (NSF) is a fibrosing skin disorder that develops in patients with kidney failure and has been linked to exposure to gadolinium-containing contrast agents. The time between exposure to gadolinium and the initial presentation of NSF is typically weeks to months but has been documented to be as long as 3½ years. We report a case of NSF developing 10 years after exposure to gadolinium.
View Article and Find Full Text PDFEval Health Prof
June 2002
This article is written from personal experiences with the recent death of the authors' mother. It highlights the problems the authors encountered, while acknowledging the positive aspects of treatment during a difficult time. The overall purpose is to improve end-of-life care by advancing policy through research, legislation, and education.
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