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https://www.readbyqxmd.com/read/28101735/urethral-carcinoma-in-situ-recognition-and-management
#1
Ricardo H Berjeaut, Maliza D I Persaud, Nikolai Sopko, Arthur L Burnett
PURPOSE: Urethral carcinoma in situ (CIS) is an uncommon malignancy that is poorly described in the published literature and is often under-recognized in the clinical setting. This short case series reports some challenges associated with the recognition and management of this disease. METHODS: A retrospective chart review was done over a 12-year period of patients presenting with urethral cancer to the Johns Hopkins Hospital. Four patients were identified with CIS of the anterior urethra, and their demographic and clinical data were recorded...
January 18, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28100976/ventricular-tachycardia-in-fabry-disease-detected-in-a-50-year-old-woman-during-14-day-continuous-cardiac-monitoring
#2
Jaime Silva-Gburek, Laura Rochford, Robert Hopkin, John L Jefferies
Fabry disease is an X-linked lysosomal storage disorder. Female carriers were long thought to be asymptomatic; however, research has revealed the opposite. Cardiac conditions are the chief causes of death in women with Fabry disease. Although ventricular tachycardia has been reported in male patients with Fabry disease, it is not thought to be a frequent finding in females. We describe the case of a 50-year-old woman in whom we used 14-day continuous electrocardiographic monitoring to identify nonsustained ventricular tachycardia, after electrocardiograms and 24-hour Holter monitoring failed to detect the arrhythmia...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28097368/incidence-of-and-risk-factors-for-skin-cancer-in-organ-transplant-recipients-in-the-united-states
#3
Giorgia L Garrett, Paul D Blanc, John Boscardin, Amanda Abramson Lloyd, Rehana L Ahmed, Tiffany Anthony, Kristin Bibee, Andrew Breithaupt, Jennifer Cannon, Amy Chen, Joyce Y Cheng, Zelma Chiesa-Fuxench, Oscar R Colegio, Clara Curiel-Lewandrowski, Christina A Del Guzzo, Max Disse, Margaret Dowd, Robert Eilers, Arisa Elena Ortiz, Caroline Morris, Spring K Golden, Michael S Graves, John R Griffin, R Samuel Hopkins, Conway C Huang, Gordon Hyeonjin Bae, Anokhi Jambusaria, Thomas A Jennings, Shang I Brian Jiang, Pritesh S Karia, Shilpi Khetarpal, Changhyun Kim, Goran Klintmalm, Kathryn Konicke, Shlomo A Koyfman, Charlene Lam, Peter Lee, Justin J Leitenberger, Tiffany Loh, Stefan Lowenstein, Reshmi Madankumar, Jacqueline F Moreau, Rajiv I Nijhawan, Shari Ochoa, Edit B Olasz, Elaine Otchere, Clark Otley, Jeremy Oulton, Parth H Patel, Vishal Anil Patel, Arpan V Prabhu, Melissa Pugliano-Mauro, Chrysalyne D Schmults, Sarah Schram, Allen F Shih, Thuzar Shin, Seaver Soon, Teresa Soriano, Divya Srivastava, Jennifer A Stein, Kara Sternhell-Blackwell, Stan Taylor, Allison Vidimos, Peggy Wu, Nicholas Zajdel, Daniel Zelac, Sarah T Arron
Importance: Skin cancer is the most common malignancy occurring after organ transplantation. Although previous research has reported an increased risk of skin cancer in solid organ transplant recipients (OTRs), no study has estimated the posttransplant population-based incidence in the United States. Objective: To determine the incidence and evaluate the risk factors for posttransplant skin cancer, including squamous cell carcinoma (SCC), melanoma (MM), and Merkel cell carcinoma (MCC) in a cohort of US OTRs receiving a primary organ transplant in 2003 or 2008...
January 11, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28095138/leber-congenital-amaurosis-from-darkness-to-light-an-ode-to-irene-maumenee
#4
Razek Georges Coussa, Irma Lopez Solache, Robert K Koenekoop
This article is dedicated to Irene Hussels-Maumenee, Professor of Human Genetics and Ophthalmology, Johns Hopkins' Wilmer Eye Institute, Ocular Genetics Fellowship director in 1994-1995. Leber congenital amaurosis (LCA) has almost come full circle, from a profound and molecularly uncharacterized form of congenital retinal blindness to one in which a large number of causative genes and disease pathways are known, and the world's first human retinal disease to be treated by gene therapy. Dr. Maumenee's insights, efforts, and leadership have contributed significantly to this remarkable scientific journey...
January 17, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28089812/clinical-manifestations-and-outcomes-in-surgically-managed-gartner-duct-cysts-1
#5
Adela G Cope, Shannon Laughlin-Tommaso, Abimbola Famuyide, John B Gebhart, Matthew R Hopkins, Daniel M Breitkopf
STUDY OBJECTIVE: Gartner duct cysts (GDC) are rare embryological remnants of the mesonephric duct with the majority of cases discovered incidentally in asymptomatic patients. The largest prior published series evaluating surgical management of GDC included 4 patients. The present study aims to determine the manifestations and outcomes of surgically managed patients with GDC with important implications for surveillance, monitoring, and management of patients. DESIGN: Retrospective chart review DESIGN: Classification: Canadian Task Force Classification III SETTING: Tertiary care center PATIENTS: All women diagnosed with GDC from 1/1994-4/2014 at our institution were identified...
January 12, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28081533/eeg-monitoring-technique-influences-the-management-of-hypoxic-ischemic-seizures-in-neonates-undergoing-therapeutic-hypothermia
#6
Saber Jan, Frances J Northington, Charlamaine M Parkinson, Carl E Stafstrom
Electroencephalogram (EEG) monitoring techniques for neonatal hypoxia-ischemia (HI) are evolving over time, and the specific type of EEG utilized could influence seizure diagnosis and management. We examined whether the type of EEG performed affected seizure treatment decisions (e.g., the choice and number of antiseizure drugs [ASDs]) in therapeutic hypothermia-treated neonates with HI from 2007 to 2015 in the Johns Hopkins Hospital Neonatal Intensive Care Unit. During this period, 3 different EEG monitoring protocols were utilized: Period 1 (2007-2009), single, brief conventional EEG (1 h duration) at a variable time during therapeutic hypothermia treatment, i...
January 17, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28079974/findings-from-a-pilot-study-bringing-evidence-based-practice-to-the-bedside
#7
Mary Ann Friesen, Joni M Brady, Renee Milligan, Patricia Christensen
BACKGROUND: To translate research supporting inpatient care outcomes and provide evidence-based care, registered nurses (RNs) need continuing education and mentoring support to adopt evidence-based practice (EBP). AIMS: The aim of this study was to assess a demonstration project intended to pilot and evaluate a structured EBP education with mentoring innovation for nurses in a multihospital system. METHODS: Nurses from five units in five hospitals were included in an education with mentoring innovation to implement the Johns Hopkins Nursing Evidence-Based Practice Model and the Advancing Research and Clinical practice through close Collaboration (ARCC) Model...
January 12, 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28078501/the-tissue-culture-laboratory-of-dr-george-otto-gey-60%C3%A2-yrs-ago-as-recalled-by-a-former-student
#8
Charles T Ambrose
George Otto Gey was a pioneer in tissue culture, having introduced the roller drum, the HeLa cell line, and the use of human fetal cord serum and beef embryo extract. During his career (1920s-1960s), the field of tissue culture was in its infancy and not yet dependent upon commercial biological supply houses. While the early techniques of cell culture have been greatly improved upon, of historical interest may be personal observations of the Gey Tissue Culture Laboratory, Johns Hopkins Medical School, as recalled by a medical student working there in the 1950s...
January 11, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28077493/disease-modifying-therapies-modulate-retinal-atrophy-in-multiple-sclerosis-a-retrospective-study
#9
Julia Button, Omar Al-Louzi, Andrew Lang, Pavan Bhargava, Scott D Newsome, Teresa Frohman, Laura J Balcer, Elliot M Frohman, Jerry Prince, Peter A Calabresi, Shiv Saidha
OBJECTIVE: To retrospectively investigate whether disease-modifying therapies (DMTs) exert differential effects on rates of retinal atrophy in relapsing-remitting multiple sclerosis (RRMS), as assessed using optical coherence tomography (OCT). METHODS: A total of 402 patients with RRMS followed at the Johns Hopkins MS Center who underwent Cirrus-HD OCT were assessed for eligibility. Inclusion criteria included at least 1 year of OCT follow-up and adherence to a single DMT during the period of follow-up...
January 11, 2017: Neurology
https://www.readbyqxmd.com/read/28068672/genomic-hallmarks-of-localized-non-indolent-prostate-cancer
#10
Michael Fraser, Veronica Y Sabelnykova, Takafumi N Yamaguchi, Lawrence E Heisler, Julie Livingstone, Vincent Huang, Yu-Jia Shiah, Fouad Yousif, Xihui Lin, Andre P Masella, Natalie S Fox, Michael Xie, Stephenie D Prokopec, Alejandro Berlin, Emilie Lalonde, Musaddeque Ahmed, Dominique Trudel, Xuemei Luo, Timothy A Beck, Alice Meng, Junyan Zhang, Alister D'Costa, Robert E Denroche, Haiying Kong, Shadrielle Melijah G Espiritu, Melvin L K Chua, Ada Wong, Taryne Chong, Michelle Sam, Jeremy Johns, Lee Timms, Nicholas B Buchner, Michèle Orain, Valérie Picard, Helène Hovington, Alexander Murison, Ken Kron, Nicholas J Harding, Christine P'ng, Kathleen E Houlahan, Kenneth C Chu, Bryan Lo, Francis Nguyen, Constance H Li, Ren X Sun, Richard de Borja, Christopher I Cooper, Julia F Hopkins, Shaylan K Govind, Clement Fung, Daryl Waggott, Jeffrey Green, Syed Haider, Michelle A Chan-Seng-Yue, Esther Jung, Zhiyuan Wang, Alain Bergeron, Alan Dal Pra, Louis Lacombe, Colin C Collins, Cenk Sahinalp, Mathieu Lupien, Neil E Fleshner, Housheng H He, Yves Fradet, Bernard Tetu, Theodorus van der Kwast, John D McPherson, Robert G Bristow, Paul C Boutros
Prostate tumours are highly variable in their response to therapies, but clinically available prognostic factors can explain only a fraction of this heterogeneity. Here we analysed 200 whole-genome sequences and 277 additional whole-exome sequences from localized, non-indolent prostate tumours with similar clinical risk profiles, and carried out RNA and methylation analyses in a subset. These tumours had a paucity of clinically actionable single nucleotide variants, unlike those seen in metastatic disease. Rather, a significant proportion of tumours harboured recurrent non-coding aberrations, large-scale genomic rearrangements, and alterations in which an inversion repressed transcription within its boundaries...
January 19, 2017: Nature
https://www.readbyqxmd.com/read/28067867/germline-brca2-mutations-drive-prostate-cancers-with-distinct-evolutionary-trajectories
#11
Renea A Taylor, Michael Fraser, Julie Livingstone, Shadrielle Melijah G Espiritu, Heather Thorne, Vincent Huang, Winnie Lo, Yu-Jia Shiah, Takafumi N Yamaguchi, Ania Sliwinski, Sheri Horsburgh, Alice Meng, Lawrence E Heisler, Nancy Yu, Fouad Yousif, Melissa Papargiris, Mitchell G Lawrence, Lee Timms, Declan G Murphy, Mark Frydenberg, Julia F Hopkins, Damien Bolton, David Clouston, John D McPherson, Theodorus van der Kwast, Paul C Boutros, Gail P Risbridger, Robert G Bristow
Germline mutations in the BRCA2 tumour suppressor are associated with both an increased lifetime risk of developing prostate cancer (PCa) and increased risk of aggressive disease. To understand this aggression, here we profile the genomes and methylomes of localized PCa from 14 carriers of deleterious germline BRCA2 mutations (BRCA2-mutant PCa). We show that BRCA2-mutant PCa harbour increased genomic instability and a mutational profile that more closely resembles metastastic than localized disease. BRCA2-mutant PCa shows genomic and epigenomic dysregulation of the MED12L/MED12 axis, which is frequently dysregulated in metastatic castration-resistant prostate cancer (mCRPC)...
January 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28062216/post-transplant-cyclophosphamide-after-bone-marrow-transplantation-is-not-associated-with-an-increased-risk-of-donor-derived-malignancy
#12
Robbie G Majzner, Huzefa Mogri, Ravi Varadhan, Patrick Brown, Kenneth R Cooke, Javier Bolaños-Meade, Lode Swinnen, Jennifer Kanakry, Leo Luznik, Rick Jones, Ephraim Fuchs, Rich Ambinder, Yvette Kasamon, Heather J Symons
Post-transplant cyclophosphamide (PTCy) can be used for graft versus host disease (GVHD) prophylaxis alone or in combination with other agents and is associated with excellent rates of engraftment, acute and chronic GVHD, and an absence of post-transplant lymphoproliferative disease. No study has previously evaluated the risk for developing donor derived malignancy (DDM) in patients who receive PTCy. Giving chemotherapy in the immediate post-transplant period carries with it a theoretic risk of disturbing the graft at a time of increased hematopoietic stress and causing or accelerating the development of malignancy...
January 3, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28056121/comparing-patient-casual-observer-and-expert-perception-of-permanent-unilateral-facial-paralysis
#13
Jacob K Dey, Lisa E Ishii, Jason C Nellis, Kofi D O Boahene, Patrick J Byrne, Masaru Ishii
Importance: Differences in perception of facial paralysis among patients, casual observers, and experts may have implications for outcomes research and patient care. Objective: To compare multiple domains of casual observer and expert perception with the actual experience of patients with permanent unilateral facial paralysis. Design, Setting, and Participants: This investigation was a prospective cohort study conducted at an academic tertiary referral center...
January 5, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28055120/evaluation-of-proposed-staging-systems-for-human-papillomavirus-related-oropharyngeal-squamous-cell-carcinoma
#14
Ian-James Malm, Caleb J Fan, Linda X Yin, David X Li, Wayne M Koch, Christine G Gourin, Karen T Pitman, Jeremy D Richmon, William H Westra, Hyunseok Kang, Harry Quon, David W Eisele, Carole Fakhry
BACKGROUND: Patients with human papillomavirus (HPV)-related oropharyngeal cancer (OPC) have improved survival when compared with those with HPV-negative OPC. Unfortunately, the American Joint Committee on Cancer seventh edition (AJCC-7ed) staging system does not account for the prognostic advantage observed with HPV-positive OPC. The purpose of the current study was to validate and compare 2 recently proposed staging systems for HPV-positive OPC. METHODS: Patients treated for HPV-positive OPC from 2005 to 2015 at Johns Hopkins Hospital (JHH) were included for analysis...
January 5, 2017: Cancer
https://www.readbyqxmd.com/read/28052155/effect-of-background-liver-cirrhosis-on-outcomes-of-hepatectomy-for-hepatocellular-carcinoma
#15
Kazunari Sasaki, Junichi Shindoh, Georgios A Margonis, Yujiro Nishioka, Nikolaos Andreatos, Akinari Sekine, Masaji Hashimoto, Timothy M Pawlik
Importance: Background hepatocarcinogenesis is considered a major cause of postoperative recurrence of de novo hepatocellular carcinoma (HCC) in patients with liver cirrhosis (LC). The degree of underlying liver injury has reportedly correlated with surgical outcomes of HCC. However, the pattern and annual rate of recurrence of postoperative de novo HCC are still unclear. Objective: To clarify the pattern and rate of recurrence of de novo HCC in patients with LC...
January 4, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28052061/integrated-genomic-characterization-of-oesophageal-carcinoma
#16
(no author information available yet)
Oesophageal cancers are prominent worldwide; however, there are few targeted therapies and survival rates for these cancers remain dismal. Here we performed a comprehensive molecular analysis of 164 carcinomas of the oesophagus derived from Western and Eastern populations. Beyond known histopathological and epidemiologic distinctions, molecular features differentiated oesophageal squamous cell carcinomas from oesophageal adenocarcinomas. Oesophageal squamous cell carcinomas resembled squamous carcinomas of other organs more than they did oesophageal adenocarcinomas...
January 4, 2017: Nature
https://www.readbyqxmd.com/read/28049635/cost-and-economic-benefit-of-clinical-decision-support-systems-for-cardiovascular-disease-prevention-a-community-guide-systematic-review
#17
REVIEW
Verughese Jacob, Anilkrishna B Thota, Sajal K Chattopadhyay, Gibril J Njie, Krista K Proia, David P Hopkins, Murray N Ross, Nicolaas P Pronk, John M Clymer
OBJECTIVE: This review evaluates costs and benefits associated with acquiring, implementing, and operating clinical decision support systems (CDSSs) to prevent cardiovascular disease (CVD). MATERIALS AND METHODS: Methods developed for the Community Guide were used to review CDSS literature covering the period from January 1976 to October 2015. Twenty-one studies were identified for inclusion. RESULTS: It was difficult to draw a meaningful estimate for the cost of acquiring and operating CDSSs to prevent CVD from the available studies (n = 12) due to considerable heterogeneity...
January 3, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28047744/we-a-201-01-memorial-introduction
#18
C Marshall
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047230/tu-fg-204-02-an-overview-of-the-ct-protocol-optimization-team-at-johns-hopkins
#19
M Mahesh
: The role of a medical physicist involved with clinical CT activities is changing rapidly. No longer is the physicist responsible for simply ensuring scanner QA. This shift is evident by looking at the trend to regulate more and more aspects of what activities must be performed to keep a CT practice within compliance. In this symposium, new guidelines from the ACR, Joint Commission, and several states will be addressed. An overview of these regulations will be provided. Then, three speakers will provide an in-depth account of how their CT protocol Optimization team functions...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047091/we-a-201-02-modern-statistical-modeling
#20
A Niemierko
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
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