229 results on '"Katz LM"'
Search Results
2. Aerobic fitness and obesity: relationship to cerebral white matter integrity in the brain of active and sedentary older adults
- Author
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Marks, BL, Katz, LM, Styner, M, and Smith, JK
- Published
- 2011
- Full Text
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3. Body Temperature and Outcome in Acute Stoke
- Author
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Duff-Griffith, B, O'Connor, RE, Evenson, KR, Rosamond, WD, Katz, LM, and Morris, DL
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Stroke (Disease) -- Physiological aspects ,Hypothermia, Induced -- Health aspects ,Health - Published
- 2000
4. HPV31 and HPV33 incidence in cervical samples from women in Recife, Brazil
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Martins Db, P. M Felix, Katz Lm, Sergio Crovella, Antonio Carlos de Freitas, Willy Beçak, Lima Filho Jl, Bárbara Simas Chagas, Guimarães, P. M. Miranda, Angélica Alves Lima, Luiz Claudio Arraes, Baldez da Silva Mf, R.C. Stocco, M. F. P. T., Baldez da Silva, B. S., Chaga, V., Guimarãe, L. M. C., Katz, P. M., Felix, P. M., Miranda, A. A., Lima, L. C., Arrae, D. B. G., Martin, J. L., Lima Filho, R. C., Stocco, Crovella, Sergio, A. C., Freita, and W., Beçak
- Subjects
medicine.medical_specialty ,Ethnic group ,Prevalence ,Cervix Uteri ,Alphapapillomavirus ,Polymerase Chain Reaction ,Species Specificity ,Environmental health ,Epidemiology ,Genetics ,Medicine ,Humans ,Sex organ ,Molecular Biology ,Cervix ,Genotyping ,Cervical cancer ,business.industry ,Incidence (epidemiology) ,Alphapapillomaviru ,General Medicine ,medicine.disease ,Brazil ,Female ,medicine.anatomical_structure ,Immunology ,business ,Human - Abstract
Human papillomavirus (HPV) has been extensively studied concerning genomic structure, infection mechanisms, and diversity of types, as well as disease progression stages and development of vaccines. HPV type prevalence can differ in specific populations in different countries, according to ethnicity. This is the first report of an integrated project to evaluate the incidence of HPV types in different regions in Brazil in order to obtain data for vaccine development. Cervical samples were collected from women seen at a public hospital in Pernambuco, Northeast Brazil, for routine evaluation of genital alterations. Selection of the patients was random. There was a strong prevalence of HPV16 and a high incidence of HPV types 31 and 33. These data foster the discussion about the need to evaluate viral prevalence in each geographic region in order to develop targeted vaccine programs.
- Published
- 2009
5. FP1 USE OF MEDICATION COVERAGE METHODOLOGY IN MEASUREMENT OF PATIENT COMPLIANCE WITH PHARMACOTHERAPY
- Author
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Stern, L, primary, Doyle, J, additional, Siegartel, LR, additional, Katz, LM, additional, and Dolgitser, M, additional
- Published
- 2006
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6. POS10 TREATMENT PATTERNS AND RESOURCE UTILIZATION IN PATIENTS WITH PAGET'S DISEASE TREATED WITH RISENDRONATE
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Doyle, J, primary, Stern, L, additional, Dolgitser, M, additional, Katz, LM, additional, Omar, M, additional, and Kahler, K, additional
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- 2006
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7. PEY21 UTILITY ASSESSMENT AMONG PATIENTS WITH DRY EYE DISEASE IN THE UK
- Author
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Buchholz, P, primary, Steeds, C, additional, Stern, LS, additional, Wiederkehr, DP, additional, Doyle, JJ, additional, Katz, LM, additional, and Figueiredo, FC, additional
- Published
- 2005
- Full Text
- View/download PDF
8. PES8 RESOURCE UTILIZATION OF END-STAGE GLAUCOMA PATIENTS RECEIVING LOW VISION CARE: A US MULTI-SITE RETROSPECTIVE STUDY
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Williams, RT, primary, O'Connell, WF, additional, Walt, JG, additional, Siegartel, LR, additional, Katz, LM, additional, and Doyle, JJ, additional
- Published
- 2004
- Full Text
- View/download PDF
9. Spectral analysis of heart rate variability and pulmonary responses to topical applications of a 2% aminophylline-based thigh cream
- Author
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Marks, BL, primary, Katz, LM, additional, Haky, JE, additional, Foss, WM, additional, and Torok, DJ, additional
- Published
- 1999
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10. Resuscitative hypothermia
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Marion, DW, primary, Leonov, Y, additional, Ginsberg, M, additional, Katz, LM, additional, Kochanek, PM, additional, Lechleuthner, A, additional, Nemoto, EM, additional, Obrist, W, additional, Safar, P, additional, Sterz, F, additional, Tisherman, SA, additional, White, RJ, additional, Xiao, F, additional, and Zar, H, additional
- Published
- 1996
- Full Text
- View/download PDF
11. Red blood cell transfusion: a clinical practice guideline from the AABB*.
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Carson JL, Grossman BJ, Kleinman S, Tinmouth AT, Marques MB, Fung MK, Holcomb JB, Illoh O, Kaplan LJ, Katz LM, Rao SV, Roback JD, Shander A, Tobian AA, Weinstein R, Swinton McLaughlin LG, Djulbegovic B, and Clinical Transfusion Medicine Committee of the AABB
- Abstract
DESCRIPTION: Although approximately 85 million units of red blood cells (RBCs) are transfused annually worldwide, transfusion practices vary widely. The AABB (formerly, the American Association of Blood Banks) developed this guideline to provide clinical recommendations about hemoglobin concentration thresholds and other clinical variables that trigger RBC transfusions in hemodynamically stable adults and children. METHODS: These guidelines are based on a systematic review of randomized clinical trials evaluating transfusion thresholds. We performed a literature search from 1950 to February 2011 with no language restrictions. We examined the proportion of patients who received any RBC transfusion and the number of RBC units transfused to describe the effect of restrictive transfusion strategies on RBC use. To determine the clinical consequences of restrictive transfusion strategies, we examined overall mortality, nonfatal myocardial infarction, cardiac events, pulmonary edema, stroke, thromboembolism, renal failure, infection, hemorrhage, mental confusion, functional recovery, and length of hospital stay. RECOMMENDATION 1: The AABB recommends adhering to a restrictive transfusion strategy (7 to 8 g/dL) in hospitalized, stable patients (Grade: strong recommendation; high-quality evidence). RECOMMENDATION 2: The AABB suggests adhering to a restrictive strategy in hospitalized patients with preexisting cardiovascular disease and considering transfusion for patients with symptoms or a hemoglobin level of 8 g/dL or less (Grade: weak recommendation; moderate-quality evidence). RECOMMENDATION 3: The AABB cannot recommend for or against a liberal or restrictive transfusion threshold for hospitalized, hemodynamically stable patients with the acute coronary syndrome (Grade: uncertain recommendation; very low-quality evidence). RECOMMENDATION 4: The AABB suggests that transfusion decisions be influenced by symptoms as well as hemoglobin concentration (Grade: weak recommendation; low-quality evidence). [ABSTRACT FROM AUTHOR]
- Published
- 2012
12. The effects of parvocellular lateral geniculate lesions on the acuity and contrast sensitivity of macaque monkeys
- Author
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Merigan, WH, primary, Katz, LM, additional, and Maunsell, JH, additional
- Published
- 1991
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13. Infrared imaging of trauma patients for detection of acute compartment syndrome of the leg.
- Author
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Katz LM, Nauriyal V, Nagaraj S, Finch A, Pearlstein K, Szymanowski A, Sproule C, Rich PB, Guenther BD, and Pearlstein RD
- Abstract
OBJECTIVE: Early compartment syndrome is difficult to diagnose, and a delay in the diagnosis can result in amputation or death. Our objective was to explore the potential of infrared imaging, a portable and noninvasive technology, for detecting compartment syndrome in the legs of patients with multiple trauma. We hypothesized that development of compartment syndrome is associated with a reduction in surface temperature in the involved leg and that the temperature reduction can be detected by infrared imaging. DESIGN: Observational clinical study. SETTING: Level I trauma center between July 2006 and July 2007. PATIENTS: Trauma patients presenting to the emergency department. INTERVENTIONS: Average temperature of the anterior surface of the proximal and distal region of each leg was measured in the emergency department with a radiometrically calibrated, 320 x 240, uncooled microbolometer infrared camera. MEASUREMENTS AND MAIN RESULTS: The difference in surface temperature between the thigh and foot regions (thigh-foot index) of the legs in trauma patients was determined by investigators blinded to injury pattern using thermographic image analysis software. The diagnosis of compartment syndrome was made intraoperatively. Thermographic images from 164 patients were analyzed. Eleven patients developed compartment syndrome, and four of those patients had bilateral compartment syndrome. Legs that developed compartment syndrome had a greater difference in proximal vs. distal surface temperature (8.80 +/- 2.05 degrees C) vs. legs without compartment syndrome (1.22 +/- 0.88 degrees C) (analysis of variance p < .01). Patients who developed unilateral compartment syndrome had a greater proximal vs. distal temperature difference in the leg with (8.57 +/- 2.37 degrees C) vs. the contralateral leg without (1.80 +/- 1.60 degrees C) development of compartment syndrome (analysis of variance p < .01). CONCLUSIONS: Infrared imaging detected a difference in surface temperature between the proximal and distal leg of patients who developed compartment syndrome. This technology holds promise as a supportive tool for the early detection of acute compartment syndrome in trauma patients. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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14. Outcomes among a young population of pediatric asthma patients using controller therapies: results from a retrospective database analysis.
- Author
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Bukstein DA, Murphy KR, Katz LM, Ramachandran S, Doyle JJ, and Stern LS
- Published
- 2007
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15. Racial differences in medication switching and concomitant prescriptions in the treatment of bipolar disorder.
- Author
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Garver D, Lazarus A, Rajagopalan K, Lamerato L, Katz LM, Stern LS, Dolgitser M, and Doyle JJ
- Abstract
OBJECTIVE: This study examined whether the practices of switching between classes of medications and prescription of concomitant medications differed between black and nonblack patients with bipolar disorders. METHODS: In a retrospective cohort design, data from 1998 to 2004 for patients with diagnoses of bipolar disorders were obtained from a large claims database. Information was obtained on the number of prescriptions for four classes of medications (anticonvulsants, mood stabilizers, and first- and second-generation antipsychotics) as well as on medication switching (between drug classes), concomitant prescriptions, resource use, and outcomes (an emergency department visit or a hospitalization). Logistic models assessed the relationship between outcomes and switching or concomitant prescriptions. RESULTS: The study population consisted of 1,113 adults who received at least one prescription from the four drug classes. Medication switching or concomitant prescriptions were documented for more than one-third of patients (36.6 percent). A significantly greater proportion of black patients received two or more medications from different drug classes (41.1 compared with 34.7 percent). The number of prescriptions was lower for black patients than for nonblack patients. Patients for whom switching or concomitant prescriptions were documented were significantly more likely to have an emergency department visit or a hospitalization, and race was a significant predictor of these outcomes. CONCLUSIONS: The prevalence of polypharmacy-medication switching and concomitant prescriptions-was high among patients with bipolar disorder, with a higher prevalence among black patients. Patients who experienced switching or concomitant prescriptions were more likely to visit the emergency department or to be hospitalized. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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16. Audiovisual touch-screen computer-assisted self-interviewing for donor health histories: results form two years experience with the system.
- Author
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Katz LM, Cumming PD, Wallace EL, and Abrams PS
- Abstract
BACKGROUND: The donor history interview is an important aspect of blood safety, in part designed to identify unsuitable donors who may present a risk to blood recipients. There is evidence from behavioral science literature that use of computer-assisted interviewing may be superior to face-to-face (FTF) and paper techniques in eliciting sensitive behavioral information of interest to blood collection facilities. STUDY DESIGN AND METHODS: Audiovisual touch-screen computer-assisted donor self-interviewing with the AABB Uniform Donor History Questionnaire was deployed for routine use in a regional blood center replacing FTF interviews. Donor and staff perception and satisfaction surveys were performed to assess acceptance of the system. Time studies of automated and manual methods were conducted. Rates of deferral of first-time donors for high-risk behaviors and rates of errors and omissions on donor interviewing for the two systems were tabulated and compared. RESULTS: Donors and staff strongly preferred the automated system in all dimensions assessed. Donor time increased by 4 minutes but staff time declined by 5 minutes per interview. Identification of high-risk behaviors among first-time donors significantly increased. Rates of errors and omissions on donor history forms identified at audit were reduced. CONCLUSIONS: Both blood donors and collections staff enthusiastically accepted the automated donor interviewing system. A well-designed audiovisual touch-screen donor self-interviewing system is superior to face-to-face interviewing and most likely more effective than paper interviewing. [ABSTRACT FROM AUTHOR]
- Published
- 2005
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17. Serological responses to Cryptosporidium antigens among users of surface- vs. ground-water sources.
- Author
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Frost FJ, Kunde TR, Muller TB, Craun GF, Katz LM, Hibbard AJ, Calderon RL, Frost, F J, Kunde, T R, Muller, T B, Craun, G F, Katz, L M, Hibbard, A J, and Calderon, R L
- Published
- 2003
- Full Text
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18. Brain energetics of cardiopulmonary cerebral resuscitation.
- Author
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Ebmeyer U, Katz LM, Ebmeyer, U, and Katz, L M
- Published
- 2001
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19. MC1 USE OF A MODIFIED RECURSIVE PARTITIONING AND AMALGAMATION (RECPAM)TECHNIQUE IN OUTCOMES RESEARCH
- Author
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Katz, LM, Doyle, JJ, Bergemann, R, Siegartel, LR, Stern, LS, Chalfin, D, Danis, M, Rapoport, J, and Levy, M
- Published
- 2005
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20. West Nile virus.
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Katz LM, Bianco C, Morse DL, Katz, Louis M, and Bianco, Celso
- Published
- 2003
21. Reduction of bacteriuria and pyuria using cranberry juice.
- Author
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Katz LM and Katz, L M
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- 1994
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22. Adverse reactions after permanent-makeup procedures.
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Straetemans M, Katz LM, and Belson M
- Published
- 2007
23. Ask the expert: common questions and answers about blood donation.
- Author
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Katz LM
- Published
- 2003
24. Resuscitative hypothermia: Crit Care Med 1996; 24/2 (Suppl.): S81–S89
- Author
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Marion, DW, Leonov, Y, Ginsberg, M, Katz, LM, Kochanek, PM, Lechleuthner, A, Nemoto, EM, Obrist, W, Safar, P, Sterz, F, Tisherman, SA, White, RJ, Xiao, F, and Zar, H
- Published
- 1996
- Full Text
- View/download PDF
25. Lessons learned in a decade: Medical-toxicological view of tattooing.
- Author
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Giulbudagian M, Battisini B, Bäumler W, Blass Rico AM, Bocca B, Brungs C, Famele M, Foerster M, Gutsche B, Houben V, Hauri U, Karpienko K, Karst U, Katz LM, Kluger N, Serup J, Schreiver I, Schubert S, van der Bent SAS, Wolf C, Luch A, and Laux P
- Subjects
- Humans, Coloring Agents adverse effects, Ink, Tattooing adverse effects
- Abstract
Tattooing has been part of the human culture for thousands of years, yet only in the past decades has it entered the mainstream of the society. With the rise in popularity, tattoos also gained attention among researchers, with the aim to better understand the health risks posed by their application. 'A medical-toxicological view of tattooing'-a work published in The Lancet almost a decade ago, resulted from the international collaboration of various experts in the field. Since then, much understanding has been achieved regarding adverse effects, treatment of complications, as well as their regulation for improving public health. Yet major knowledge gaps remain. This review article results from the Second International Conference on Tattoo Safety hosted by the German Federal Institute for Risk Assessment (BfR) and provides a glimpse from the medical-toxicological perspective, regulatory strategies and advances in the analysis of tattoo inks., (© 2024 The Authors. Journal of the European Academy of Dermatology and Venereology published by John Wiley & Sons Ltd on behalf of European Academy of Dermatology and Venereology.)
- Published
- 2024
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26. Detection of anaerobic and aerobic bacteria from commercial tattoo and permanent makeup inks.
- Author
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Yoon S, Kondakala S, Foley SL, Moon MS, Huang M-CJ, Periz G, Zang J, Katz LM, Kim S-J, and Kweon O
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- Tattooing, Ink, Bacteria, Anaerobic isolation & purification, Bacteria, Anaerobic genetics, Bacteria, Anaerobic classification, Bacteria, Aerobic isolation & purification, Bacteria, Aerobic classification, Bacteria, Aerobic genetics, RNA, Ribosomal, 16S genetics
- Abstract
Tattooing and use of permanent makeup (PMU) have dramatically increased over the last decade, with a concomitant increase in ink-related infections. Studies have shown evidence that commercial tattoo and PMU inks are frequently contaminated with pathogenic microorganisms. Considering that tattoo inks are placed into the dermal layer of the skin where anaerobic bacteria can thrive and cause infections in low-oxygen environments, the prevalence of anaerobic and aerobic bacteria should be assessed in tattoo and PMU inks. In this study, we tested 75 tattoo and PMU inks using the analytical methods described in the FDA Bacteriological Analytical Manual Chapter 23 for the detection of both aerobic and anaerobic bacterial contamination, followed by 16S rRNA gene sequencing for microbial identification. Of 75 ink samples, we found 26 contaminated samples with 34 bacterial isolates taxonomically classified into 14 genera and 22 species. Among the 34 bacterial isolates, 19 were identified as possibly pathogenic bacterial strains. Two species, namely Cutibacterium acnes (four strains) and Staphylococcus epidermidis (two strains) were isolated under anaerobic conditions. Two possibly pathogenic bacterial strains, Staphylococcus saprophyticus and C. acnes , were isolated together from the same ink samples ( n = 2), indicating that tattoo and PMU inks can contain both aerobic ( S. saprophyticus ) and anaerobic bacteria ( C. acnes ). No significant association was found between sterility claims on the ink label and the absence of bacterial contamination. The results indicate that tattoo and PMU inks can also contain anaerobic bacteria., Importance: The rising popularity of tattooing and permanent makeup (PMU) has led to increased reports of ink-related infections. This study is the first to investigate the presence of both aerobic and anaerobic bacteria in commercial tattoo and PMU inks under aerobic and anaerobic conditions. Our findings reveal that unopened and sealed tattoo inks can harbor anaerobic bacteria, known to thrive in low-oxygen environments, such as the dermal layer of the skin, alongside aerobic bacteria. This suggests that contaminated tattoo inks could be a source of infection from both types of bacteria. The results emphasize the importance of monitoring these products for both aerobic and anaerobic bacteria, including possibly pathogenic microorganisms., Competing Interests: The authors declare no conflict of interest.
- Published
- 2024
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27. Advancing Health Equity: Efforts to Expand Education on Skin Lightening Products.
- Author
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Araojo R, Browning-McNee LA, Katz LM, Manga P, Michele T, Lee CS, Santiago Y, Hsieh J, and Welch T
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- Humans, Cosmetics, Health Education organization & administration, Skin Pigmentation, United States, Health Equity, Skin Lightening Preparations
- Abstract
Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2024
- Full Text
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28. Animal vaccine strain Brucella abortus infection in a plateletpheresis donor: A case report.
- Author
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Parsons MG, Hermelin D, Hennenfent A, Tiller RV, Annambhotla P, Negrón ME, Basavaraju SV, and Katz LM
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- Humans, Male, Animals, Female, Adult, Brucella Vaccine immunology, Brucellosis, Brucella abortus, Plateletpheresis, Blood Donors
- Published
- 2024
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29. Achieving the Unachievable: Work-Life Balance in Radiation Oncology.
- Author
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Beltrán Ponce S, Katz LM, and Seldon C
- Subjects
- Humans, Work-Life Balance, Radiation Oncologists, Radiation Oncology, Physicians
- Abstract
As radiation oncologists, we often participate in discussions on work-life balance, are offered lectures and free meals, and complete hospital-mandated modules, all under the guise of physician wellness. But how often are these measures efficacious? How do we define being well in our demanding and fast-paced careers? What does it actually look like on a day-to-day basis to achieve work-life balance? Furthermore, is it even possible?, (Copyright © 2023 American Society for Radiation Oncology. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
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30. Comparison of ventilatory and oxygen consumption measurements of yearling Thoroughbred colts and fillies exercising unridden on an all-weather track.
- Author
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Katz LM, Gough K, McGivney CL, McGivney B, Sides RH, Hill EW, and Bayly WM
- Subjects
- Male, Animals, Humans, Horses, Female, Exercise Test veterinary, Heart Rate, Weather, Oxygen, Respiration, Oxygen Consumption
- Abstract
Sex effects on ventilatory and oxygen consumption (V̇O
2 ) measurements during exercise have been identified in humans. This study's aim was to evaluate the hypothesis that there are sex effects on ventilatory and V̇O2 measurements in exercising, untrained yearling Thoroughbreds (Tb). Forty-one Tbs (16 colts, 25 fillies; 19.8 ± 1.4 months old) were recruited. Physiological, ventilatory and exercise data were gathered from horses exercising unridden at high intensity on an all-weather track from a global positioning-heart rate unit and a portable ergospirometry system. Data were analysed with an unpaired Student's t-test and the Benjamini-Hochberg correction for multiple testing (P ≤ 0.05 significant). Mean bodyweight (BW, P = 0.002) and wither height (P = 0.04) were greater for colts than fillies. There were no differences in physiological and exercise data and absolute peak V̇O2 between groups. However, fillies had a higher mass specific peak V̇O2 (P = 0.03) than colts (121.5 ± 21.6 mL/kg.min vs. 111.9 ± 27.4 mL/kg.min). The peak breathing frequency was greater for fillies (P < 0.001) while the peak inspiratory (P < 0.001) and expiratory air flow (P < 0.001), peak expiratory tidal volume (VTE ; P < 0.001) and peak minute ventilation (V̇E ; P = 0.01) were greater for colts; there were no differences for peak VTE and V̇E when adjusted for BW. Differences in BW explain the differences in mass specific peak V̇O2 between groups. Given their morphological differences, it is likely that lung volumes and airway diameters are smaller for fillies, resulting in greater resistance and lower air flows and volumes. Further research is required to investigate the ventilatory differences and how they may change with maturation and impact performance., Competing Interests: Declaration of Competing Interest None of the authors have any financial or personal relationships that could inappropriately influence or bias the content of the paper. WMB and RHS developed the portable ventilatory system which is available for commercial use. This system was partially validated by the authors from UCD prior to using the system for the presented study. EWH is a shareholder in Plusvital Ltd, an equine nutrition and genetic testing company. Plusvital Ltd had no part in the research reported in the manuscript., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)- Published
- 2023
- Full Text
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31. Parallel evaluation of alternative skin barrier models and excised human skin for dermal absorption studies in vitro.
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Salminen AT, Davis KJ, Felton RP, Nischal N, VonTungeln LS, Beland FA, Derr K, Brown PC, Ferrer M, Katz LM, Kleinstreuer NC, Leshin J, Manga P, Sadrieh N, Xia M, Fitzpatrick SC, and Camacho L
- Subjects
- Humans, Skin metabolism, Epidermis metabolism, Salicylic Acid metabolism, Testosterone metabolism, Water metabolism, Skin Absorption, Caffeine
- Abstract
Skin permeation is a primary consideration in the safety assessment of cosmetic ingredients, topical drugs, and human users handling veterinary medicinal products. While excised human skin (EHS) remains the 'gold standard' for in vitro permeation testing (IVPT) studies, unreliable supply and high cost motivate the search for alternative skin barrier models. In this study, a standardized dermal absorption testing protocol was developed to evaluate the suitability of alternative skin barrier models to predict skin absorption in humans. Under this protocol, side-by-side assessments of a commercially available reconstructed human epidermis (RhE) model (EpiDerm-200-X, MatTek), a synthetic barrier membrane (Strat-M, Sigma-Aldrich), and EHS were performed. The skin barrier models were mounted on Franz diffusion cells and the permeation of caffeine, salicylic acid, and testosterone was quantified. Transepidermal water loss (TEWL) and histology of the biological models were also compared. EpiDerm-200-X exhibited native human epidermis-like morphology, including a characteristic stratum corneum, but had an elevated TEWL as compared to EHS. The mean 6 h cumulative permeation of a finite dose (6 nmol/cm
2 ) of caffeine and testosterone was highest in EpiDerm-200-X, followed by EHS and Strat-M. Salicylic acid permeated most in EHS, followed by EpiDerm-200-X and Strat-M. Overall, evaluating novel alternative skin barrier models in the manner outlined herein has the potential to reduce the time from basic science discovery to regulatory impact., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Published by Elsevier Ltd.)- Published
- 2023
- Full Text
- View/download PDF
32. Integrative genomics analysis highlights functionally relevant genes for equine behaviour.
- Author
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Holtby AR, Hall TJ, McGivney BA, Han H, Murphy KJ, MacHugh DE, Katz LM, and Hill EW
- Subjects
- Horses genetics, Animals, Male, Cattle, Genomics, Phenotype, Hydrocortisone, Autism Spectrum Disorder
- Abstract
Behavioural plasticity enables horses entering an exercise training programme to adapt with reduced stress. We characterised SNPs associated with behaviour in yearling Thoroughbred horses using genomics analyses for two phenotypes: (1) handler-assessed coping with early training events [coping] (n = 96); and (2) variation in salivary cortisol concentration at the first backing event [cortisol] (n = 34). Using RNA-seq derived gene expression data for amygdala and hippocampus tissues from n = 2 Thoroughbred stallions, we refined the SNPs to those with functional relevance to behaviour by cross-referencing to the 500 most highly expressed genes in each tissue. The SNPs of high significance (q < 0.01) were in proximity to genes (coping - GABARAP, NDM, OAZ1, RPS15A, SPARCL1, VAMP2; cortisol - CEBPA, COA3, DUSP1, HNRNPH1, RACK1) with biological functions in social behaviour, autism spectrum disorder, suicide, stress-induced anxiety and depression, Alzheimer's disease, neurodevelopmental disorders, neuroinflammatory disease, fear-induced behaviours and alcohol and cocaine addiction. The strongest association (q = 0.0002) was with NDN, a gene previously associated with temperament in cattle. This approach highlights functionally relevant genes in the behavioural adaptation of Thoroughbred horses that will contribute to the development of genetic markers to improve racehorse welfare., (© 2023 The Authors. Animal Genetics published by John Wiley & Sons Ltd on behalf of Stichting International Foundation for Animal Genetics.)
- Published
- 2023
- Full Text
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33. Crazy Busy: The Blurring of Personal and Professional Boundaries as a Diversity, Equity, and Inclusion Issue.
- Author
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Ponce SB, Seldon C, Yanagihara TK, Horowitz D, Yu JB, Kachnic L, and Katz LM
- Subjects
- Humans, Diversity, Equity, Inclusion, Cultural Diversity
- Published
- 2023
- Full Text
- View/download PDF
34. Proceedings of the 2022 NHLBI and OASH state of the science in transfusion medicine symposium.
- Author
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Custer B, Bloch EM, Bryant BJ, D'Alessandro A, Delaney M, Goel R, Hod EA, Josephson CD, Katz LM, Miller YM, Sayers MH, Seheult JN, Triulzi DJ, Berger J, Zou S, Hailu B, Glynn SA, and Roubinian NH
- Subjects
- United States, Humans, Blood Transfusion methods, National Heart, Lung, and Blood Institute (U.S.), Transfusion Medicine
- Abstract
Background: State of the Science (SoS) meetings are used to define and highlight important unanswered scientific questions. The National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health, and the Office of the Assistant Secretary for Health (OASH), Department of Health and Human Services held a virtual SoS in transfusion medicine (TM) symposium., Study Design and Methods: In advance of the symposium, six multidisciplinary working groups (WG) convened to define research priorities in the areas of: blood donors and the supply, optimizing transfusion outcomes for recipients, emerging infections, mechanistic aspects of components and transfusion, new computational methods in transfusion science, and impact of health disparities on donors and recipients. The overall objective was to identify key basic, translational, and clinical research questions that will help to increase and diversify the volunteer donor pool, ensure safe and effective transfusion strategies for recipients, and identify which blood products from which donors best meet the clinical needs of specific recipient populations., Results: On August 29-30, 2022, over 400 researchers, clinicians, industry experts, government officials, community members, and patient advocates discussed the research priorities presented by each WG. Dialogue focused on the five highest priority research areas identified by each WG and included the rationale, proposed methodological approaches, feasibility, and barriers for success., Discussion: This report summarizes the key ideas and research priorities identified during the NHLBI/OASH SoS in TM symposium. The report highlights major gaps in our current knowledge and provides a road map for TM research., (© 2023 The Authors. Transfusion published by Wiley Periodicals LLC on behalf of AABB. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.)
- Published
- 2023
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35. Variation in salivary cortisol responses in yearling Thoroughbred racehorses during their first year of training.
- Author
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Holtby AR, McGivney BA, Browne JA, Katz LM, Murphy KJ, and Hill EW
- Subjects
- Horses, Animals, Hydrocortisone, Physical Examination, Physical Conditioning, Animal, Horse Diseases, Running
- Abstract
Thoroughbred horses are bred for competitive racing and undergo intense training regimes. The maintenance of physical soundness and desirable behavioural characteristics are critical to the longevity of a racing career. Horses intended for Flat racing generally enter training as yearlings and undergo introductory training prior to exercise conditioning for racing. This period requires rapid adjustment to a novel environment. As a prey animal, a horse's 'fight-or-flight' response is highly adapted, in which a well-understood component of this response, the hypothalamic-pituitary-axis, is activated in response to a stress stimulus, releasing cortisol. In the Thoroughbred, a significant difference in salivary cortisol concentrations between pre- and post-first time ridden (i.e., first backing) by a jockey have previously been identified. Here, to test the hypothesis that salivary cortisol concentrations may be used to objectively detect individual variations in the acute physiological stress response we investigate individual variation in cortisol response to training milestones. Saliva samples were collected from a cohort of n = 96 yearling Flat racehorses, at the same training yard, across three timepoints at rest: before entering the training yard (n = 66), within three days of entry to the training yard (n = 67) and following 2-3 weeks in the training yard (n = 50). Salivary cortisol concentration was measured using an ELISA. There was no significant difference in cortisol concentration (ANOVA, P > 0.05) across the samples collected at timepoints at rest. Samples were also collected before and 30 minutes after exposure to three novel training events: first time long-reined (n = 6), first time backed by a jockey (n = 34), and first time ridden on the gallops (n = 10). Mean salivary cortisol concentration after all three novel training events was significantly higher than prior to the training event (Paired t-test, P <0.005). The ranges of post-event salivary cortisol concentration across all timepoints suggest individual variation in the measured stress response, reflecting individual differences in stress response to the early training environment. This measure may be used as an objective assessment of the stress response of Thoroughbred racehorses during training., Competing Interests: This research was carried out with the financial support of Plusvital Ltd. Plusvital is an equine nutrition and genetic testing company in which EWH is a shareholder. This does not alter our adherence to PLOS ONE policies on sharing data and materials., (Copyright: © 2023 Holtby et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2023
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36. Beyond COVID-19 and lessons learned in the United States.
- Author
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Gammon R, Katz LM, Strauss D, Rowe K, Menitove J, Benjamin RJ, Goel R, Borge D, Reichenberg S, and Smith R
- Subjects
- Humans, United States, SARS-CoV-2, Pandemics, COVID-19 Serotherapy, Blood Donors, Immunization, Passive, COVID-19
- Abstract
The COVID-19 pandemic severely tested the resilience of the US blood supply with wild fluctuations in blood donation and utilisation rates as community donation opportunities ebbed and hospitals post-poned elective surgery. Key stakeholders in transfusion services, blood centres, supply chains and manufacturers reviewed their experiences during the SARS-CoV-2 pandemic as well as available literature to describe successes, opportunities for improvement and lessons learned. The blood community found itself in uncharted territory responding to restriction of its access to donors (approximately 20% decrease) and some supplies; environmental adjustments to address staff and donor concerns about coronavirus transmission; and the development of a new product (COVID-19 convalescent plasma [CCP]). In assuring that the needs of the patients were paramount, the donation process was safe, that clinicians had access to CCP, and vendor relationships aligned, the blood banking community relearned its primary focus: improving patient outcomes., (© 2022 British Blood Transfusion Society.)
- Published
- 2023
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37. Selection signatures for local and regional adaptation in Chinese Mongolian horse breeds reveal candidate genes for hoof health.
- Author
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Han H, Randhawa IAS, MacHugh DE, McGivney BA, Katz LM, Dugarjaviin M, and Hill EW
- Subjects
- Animals, Adaptor Proteins, Signal Transducing genetics, Genome, Phenotype, Polymorphism, Single Nucleotide, Selection, Genetic, Ubiquitin-Protein Ligases genetics, Adaptation, Biological genetics, Hoof and Claw, Horses genetics
- Abstract
Background: Thousands of years of natural and artificial selection since the domestication of the horse has shaped the distinctive genomes of Chinese Mongolian horse populations. Consequently, genomic signatures of selection can provide insights into the human-mediated selection history of specific traits and evolutionary adaptation to diverse environments. Here, we used genome-wide SNPs from five distinct Chinese Mongolian horse populations to identify genomic regions under selection for the population-specific traits, gait, black coat colour, and hoof quality. Other global breeds were used to identify regional-specific signatures of selection., Results: We first identified the most significant selection peak for the Wushen horse in the region on ECA23 harbouring DMRT3, the major gene for gait. We detected selection signatures encompassing several genes in the Baicha Iron Hoof horse that represent good biological candidates for hoof health, including the CSPG4, PEAK1, EXPH5, WWP2 and HAS3 genes. In addition, an analysis of regional subgroups (Asian compared to European) identified a single locus on ECA3 containing the ZFPM1 gene that is a marker of selection for the major domestication event leading to the DOM2 horse clade., Conclusions: Genomic variation at these loci in the Baicha Iron Hoof may be leveraged in other horse populations to identify animals with superior hoof health or those at risk of hoof-related pathologies. The overlap between the selection signature in Asian horses with the DOM2 selection peak raises questions about the nature of horse domestication events, which may have involved a prehistoric clade other than DOM2 that has not yet been identified., (© 2023. The Author(s).)
- Published
- 2023
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38. Regulation of Cosmetics in the United States.
- Author
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Katz LM, Lewis KM, Spence S, and Sadrieh N
- Subjects
- Allergens, Humans, United States, United States Food and Drug Administration, Cosmetics adverse effects
- Abstract
In the United States, cosmetics are regulated under the Food, Drug, and Cosmetic Act and the Fair Packaging and Labeling Act. Accordingly, cosmetic ingredients, with the exception of color additives, are not subject to premarket approval. However, they must not be adulterated or misbranded. This article describes the statutes and regulations relevant to cosmetic regulation by the Food and Drug Administration (FDA). It also describes relevant domestic programs of the FDA (Voluntary Cosmetic Registration Program, Good Manufacturing Practice guidance, Adverse Event Reporting System, Recalls) and international efforts regarding cosmetics regulation., (Published by Elsevier Inc.)
- Published
- 2022
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39. Targeted Intraoperative Radiotherapy (TARGIT-IORT) for Early-Stage Invasive Breast Cancer: A Single Institution Experience.
- Author
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Brown A, Buss EJ, Chin C, Liu G, Lee S, Rao R, Taback B, Wiechmann L, Horowitz D, Choi JC, Katz LM, and Connolly EP
- Abstract
Purpose/objective: We present our single-institution experience in the management of invasive breast cancer with targeted intraoperative radiotherapy (TARGIT-IORT), focusing on patient suitability for IORT determined by the American Society for Radiation Oncology (ASTRO) Accelerated Partial Breast Irradiation (APBI) consensus guidelines., Materials/methods: We identified 237 patients treated for biopsy-proven early-stage invasive breast cancer using low energy x-ray TARGIT-IORT at the time of lumpectomy between September 2013 and April 2020 who were prospectively enrolled in an institutional review board (IRB) approved database. We retrospectively reviewed preoperative and postoperative clinicopathologic factors to determine each patient's ASTRO APBI suitability (suitable, cautionary or unsuitable) according to the 2017 consensus guidelines (CG). Change in suitability group was determined based on final pathology. Kaplan-Meier methods were used to estimate the survival probability and recurrence probability across time., Results: 237 patients were included in this analysis, based on preoperative clinicopathologic characteristics, 191 (80.6%) patients were suitable, 46 (19.4%) were cautionary and none were deemed unsuitable. Suitability classification changed in 95 (40%) patients based on final pathology from lumpectomy. Increasing preoperative lesion size or a body mass index (BMI) ≥ 30 kg/m
2 were significant predictors for suitability group change. Forty-one (17.3%) patients received additional adjuvant whole breast radiotherapy after TARGIT-IORT. At a median follow up of 38.2 months (range 0.4 - 74.5), five (2.1%) patients had ipsilateral breast tumor recurrences (IBTR), including two (0.8%) true local recurrences defined as a recurrence in the same quadrant as the initial lumpectomy bed with the same histology as the initial tumor. IBTR occurred in 1/103 (0.09%) patient in the post-op suitable group, 4/98 (4.08%) patients in the post-op cautionary group, and no patients in the post-op unsuitable group. At 3-years, the overall survival rate was 98.4% and the local recurrence free survival rate was 97.1%., Conclusion: There is a low rate of IBTR after TARGIT-IORT when used in appropriately selected patients. Change in suitability classification pre to postoperatively is common, highlighting a need for further investigation to optimize preoperative patient risk stratification in this setting. Patients who become cautionary or unsuitable based on final pathology should be considered for additional adjuvant therapy., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Brown, Buss, Chin, Liu, Lee, Rao, Taback, Wiechmann, Horowitz, Choi, Katz and Connolly.)- Published
- 2022
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40. Stereotactic Body Radiation Therapy for the Treatment of Locally Recurrent and Oligoprogressive Non-Small Cell Lung Cancer: A Single Institution Experience.
- Author
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Katz LM, Ng V, Wu SP, Yan S, Grew D, Shin S, Colangelo NW, McCarthy A, Pass HI, Chachoua A, and Schiff PB
- Abstract
Objectives: To investigate the efficacy and safety of lung stereotactic body radiation therapy (SBRT) for non-small cell lung cancer (NSCLC) including oligorecurrent and oligoprogressive disease., Methods: Single-institution retrospective analysis of 60 NSCLC patients with 62 discrete lesions treated with SBRT between 2008 and 2017. Patients were stratified into three groups, including early stage, locally recurrent, and oligoprogressive disease. Group 1 included early stage local disease with no prior local therapy. Group 2 included locally recurrent disease after local treatment of a primary lesion, and group 3 included regional or well-controlled distant metastatic disease receiving SBRT for a treatment naive lung lesion (oligoprogressive disease). Patient/tumor characteristics and adverse effects were recorded. Local failure free survival (LFFS), progression free survival (PFS), and overall survival (OS) were estimated using the Kaplan Meier method., Results: At median follow-up of 34 months, 67% of the study population remained alive. The estimated 3-year LFFS for group 1, group 2, and group 3 patients was 95% (95% CI: 86%-100%), 82%(62% - 100%), and 83% (58-100%), respectively. The estimated 3-year PFS was 59% (42-83%), 40% (21%-78%), and 33% (12%-95%), and the estimated 3-year OS was 58% (41-82%), 60% (37-96%), and 58% (31-100%)), respectively for each group. When adjusted for age and size of lesion, no significant difference in OS, LFFS, and PFS emerged between groups (p > 0.05). No patients experienced grade 3 to 5 toxicity. Eighteen patients (29%) experienced grade 1 to 2 toxicity. The most common toxicities reported were cough and fatigue., Conclusions: Our data demonstrates control rates in group 1 patients comparable to historical controls. Our study also reveals comparable clinical results for SBRT in the treatment of NSCLC by demonstrating similar rates of LFFS and OS in group 2 and group 3 patients with locally recurrent and treatment naïve lung lesion with well-controlled distant metastatic disease., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Katz, Ng, Wu, Yan, Grew, Shin, Colangelo, McCarthy, Pass, Chachoua and Schiff.)
- Published
- 2022
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41. Powassan virus: What is the risk to the blood supply?
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Bloch EM, Tobian AAR, and Katz LM
- Subjects
- Canada epidemiology, Humans, Incidence, Encephalitis Viruses, Tick-Borne, Encephalitis, Tick-Borne epidemiology, Torque teno virus
- Abstract
Powassan virus (POWV) is an emerging tick-borne arbovirus that is found widely in Canada, the Northeastern and Northcentral United States, and the Russian Far East. While still rare, there has been an increase in reported cases of POWV disease over the last decade; most (>90%) cases have been neuroinvasive and the associated fatality rate is high (>10%). Transfusion-associated risk of POWV remains uncertain; while no intervention is likely indicated, one probable case of transfusion-transmitted POWV in the context of an increase in the incidence of POWV and other tick-borne infections, merits vigilance., (© 2021 AABB.)
- Published
- 2021
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42. Blood Product (Donor) Noninfectious and Infectious Testing and Modification.
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Sarker T, Katz LM, Bloch EM, and Goel R
- Subjects
- Blood Donors, Blood Transfusion, Humans, United States, Blood Safety, Communicable Diseases diagnosis
- Abstract
Blood transfusion begins with safe donor selection and testing. In the United States, the blood supply and transfusion are highly regulated. Blood transfusion safety is multifaceted, whereby each of the elements of the blood safety value chain, spanning donor recruitment and qualification, to collection, blood processing, testing, transfusion practice, and posttransfusion surveillance, must be optimized to minimize risk. Pathogen inactivation is a promising approach to decrease bacterial contamination of platelets, inactivate parasites and viruses, and decrease risks associated with emerging and unidentified pathogens. This article offers an overview of blood donor infectious and noninfectious testing in the United States., Competing Interests: Disclosure The authors have nothing to disclose., (Copyright © 2021 Elsevier Inc. All rights reserved.)
- Published
- 2021
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43. Blood transfusion trends in the United States: national inpatient sample, 2015 to 2018.
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Goel R, Zhu X, Patel EU, Crowe EP, Ness PM, Katz LM, Bloch EM, and Tobian AAR
- Subjects
- Adolescent, Aged, Child, Erythrocyte Transfusion, Hospitalization, Humans, Platelet Transfusion, United States epidemiology, Blood Transfusion, Inpatients
- Abstract
Blood transfusions are among the most common therapeutic procedures performed in hospitalized patients. This study evaluates contemporary national trends in red blood cell (RBC), plasma, platelet, and cryoprecipitate transfusions. National Inpatient Sample, the largest all-payer inpatient database representing 94% to 97% of the US population, was evaluated from the fourth quarter (Q4) of 2015 through 2018. Quarterly trends for the percentage of hospitalizations with a transfusion procedure were separately examined for each blood product using log binomial regression and reported as quarterly percent change (QPC). The percentage of hospitalizations with an RBC transfusion decreased from 4.22% (2015Q4) to 3.79% (2018Q4) (QPC = -0.72; 95% confidence interval [CI], -1.26 to -0.19; Ptrend = .008). Although plasma transfusions also decreased, QPC = -1.33 (95% CI, -2.00 to -0.65; Ptrend < .001), platelet transfusions remained stable QPC = -0.13 (95% CI, -0.99 to 0.73; Ptrend = .766). In contrast, hospitalizations with cryoprecipitate utilization significantly increased QPC = 2.01 (95% CI, 0.57 to 3.44; Ptrend = .006). Significant quarterly reductions in RBC transfusions were also seen among many, but not all, strata of sex, race/ethnicity, patient risk severity, and admission type (elective vs nonelective). Despite significant declines in RBC transfusions among older adults, there were no significant changes among pediatric age-group (<18 years) and those 18 to 49 years. The decline in RBC and plasma transfusions suggests steady incorporation of robust evidence base showing safety of restrictive transfusions. Increased cryoprecipitate use may be reflective of wider adoption of hypofibrinogenemia management and hemostasis testing for coagulopathic patients., (© 2021 by The American Society of Hematology. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0), permitting only noncommercial, nonderivative use with attribution. All other rights reserved.)
- Published
- 2021
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44. Warmblood fragile foal syndrome causative single nucleotide polymorphism frequency in horses in Ireland.
- Author
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Rowe Á, Flanagan S, Barry G, Katz LM, Lane EA, and Duggan V
- Abstract
Background: Warmblood Fragile Foal Syndrome (WFFS) is an autosomal recessive disorder caused by a mutation in the procollagen-lysine, 2-oxoglutarate 5-dioxygenase 1 (PLOD1) gene. Homozygosity for the mutation results in defective collagen synthesis which clinically manifests as the birth of non viable or still born foals with abnormally fragile skin. While the mutation has been identified in non Warmblood breeds including the Thoroughbred, to date all homozygous clinically affected cases reported in the scientific literature are Warmblood foals. The objective of this study was to investigate the carrier frequency of the mutation in the Thoroughbred and sport horse populations in Ireland., Methods: A test was developed at the UCD School of Veterinary Medicine using real-time PCR to amplify the PLOD1 gene c.2032G > A variant. A subset of the samples was also submitted to an external laboratory with a licensed commercial WFFS genetic test., Results: Warmblood Fragile Foal Syndrome genotyping was performed on hair samples from 469 horses representing 6 different breeds. Six of 303 (1.98%) sport horses tested and three of 109 (2.75%) Thoroughbreds tested were heterozygous for the WFFS polymorphism (N/WFFS). The WFFS polymorphism was not identified in the Standardbred, Cob, Connemara, or other pony breeds., Conclusions: The study identified a low frequency of the WFFS causative mutation in sport horses and Thoroughbreds in Ireland, highlighting the importance of WFFS genetic testing in order to identify phenotypically normal heterozygous carriers and to prevent the birth of nonviable foals., (© 2021. The Author(s).)
- Published
- 2021
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45. Sequential dosing of convalescent COVID-19 plasma with significant temporal clinical improvements in a persistently SARS-COV-2 positive patient.
- Author
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Mirihagalle N, Parajuli P, Sundareshan V, Saha D, Shah A, Chua F, Waqar S, Prakash V, Tobian AAR, Bloch EM, Katz LM, and Goel R
- Subjects
- Anti-Bacterial Agents therapeutic use, COVID-19 complications, COVID-19 diagnostic imaging, Combined Modality Therapy, Diabetes Mellitus, Type 2 complications, Furosemide therapeutic use, Humans, Hypertension complications, Immunization, Passive methods, Male, Middle Aged, Overweight complications, Pulmonary Disease, Chronic Obstructive complications, Recurrence, Remission Induction, Respiration, Artificial, Respiratory Distress Syndrome diagnostic imaging, Respiratory Distress Syndrome etiology, Respiratory Distress Syndrome therapy, COVID-19 Serotherapy, COVID-19 therapy, SARS-CoV-2
- Abstract
The current global pandemic, SARS-CoV-2 infection, is still extending across the world affecting millions of lives to the date. While new successful vaccines are available with promising outcomes to minimize the spread and to reduce the severity of the disease, optimal therapeutic options still remain elusive. COVID-19 convalescent plasma (CCP) is an investigational treatment option which studies suggesting signals of efficacy and favorable outcomes only for patients treated very early in course of the disease. Benefits of the use of CCP later in the disease remain highly debated and therefore are not common practice. We hereby report a case of severe SARS-CoV-2 infection in a young male patient with prolonged COVID-19 positivity who received repeat doses of CCP treatments later in the disease with temporal clinical improvement. This patient's case highlights the need of further studies evaluating efficacy of repeated dosing of CCP. This also suggests a potential of successful use of CCP later in the disease in selected COVID-19 patients., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Published
- 2021
- Full Text
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46. A survey of US hospitals on platelet inventory management, transfusion practice, and platelet availability.
- Author
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Pandey S, Belanger GA, Rajbhandary S, Cohn CS, Benjamin RJ, Bracey AW, Katz LM, Menitove JE, Mintz PD, and Gammon RR
- Subjects
- Blood Banks, Blood Donors supply & distribution, Blood Preservation, Hospitals, Humans, United States, Blood Platelets cytology, Platelet Transfusion
- Abstract
Background: A survey of US hospitals was conducted to increase our understanding of the current state of platelet (PLT) practice and supply. The survey captures information on transfusion practice and inventory management, including stock levels, outdate rates, ability to return or transfer PLTs, and low dose PLTs. Notably, the survey also elucidates PLT availability challenges and impact to patient care., Study Design and Methods: A 27 question online survey was distributed directly to over 995 US hospitals and indirectly through blood centers to many more between September 27 and October 25, 2019. Descriptive statistics were used for respondent characteristics. Bivariate analysis was performed and correlation coefficients, chi square tests, and p values determined statistical significance of relationships between variables., Results: Four hundred and eighty-one hospitals completed the survey of which 21.6%, 53.2%, and 25.2% were characterized as small, medium, and large hospitals, respectively. Some key observations from this survey include: (1) there is an opportunity for greater adherence to evidence-based guidelines; (2) higher outdate rates occur in hospitals stocking less than five PLTs and the ability to return or transfer PLTs lowers outdates; (3) use of low dose apheresis PLTs varies; and (4) decreased PLT availability is commonly reported, especially in hospitals with high usage, and can lead to delays in transfusions or surgeries., Conclusion: This survey represents a comprehensive national assessment of inventory management practices and PLT availability challenges in US hospitals. Findings from this survey can be used to guide further research, help shape future guidance for industry, and assist with policy decisions., (© 2021 AABB.)
- Published
- 2021
- Full Text
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47. Blood transfusions in gunshot-wound-related emergency department visits and hospitalizations in the United States.
- Author
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Goel R, Zhu X, Makhani S, Petersen MR, Josephson CD, Katz LM, Shaz BH, Austin R, Crowe EP, Ness PM, Gehrie EA, Frank SM, Bloch EM, and Tobian AAR
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Emergency Service, Hospital, Female, Hospitalization, Humans, Male, Middle Aged, United States epidemiology, Wounds, Gunshot blood, Wounds, Gunshot epidemiology, Young Adult, Blood Transfusion, Wounds, Gunshot therapy
- Abstract
Background: The United States (US) leads all high-income countries in gunshot wound (GSW) deaths. However, previous US studies have not evaluated the national blood transfusion utilization patterns in hospitalized GSW patients., Methods: Data from 2016 to 2017 were analyzed from the Nationwide Emergency Department Sample (NEDS) and Nationwide Inpatient Sample (NIS), the largest all-payer emergency department (ED) and inpatient databases, respectively. Using stratified probability sampling, weights were applied to generate nationally representative estimates. Multivariable Poisson-regression models were used to estimate prevalence ratios (PR) of blood transfusion., Results: There were 168,315 ED visits and 58,815 hospitalizations (age = 18-90 years) following a GSW. The majority of hospitalizations were men (88.5%), age 18-24 years (31.8%), and assault-related GSW (51.3%). Blacks had the largest proportion (48.7%) overall of all GSW hospitalizations; Whites accounted for the highest proportion of intentional self-harm injuries (72.4%). Blood transfusions occurred in 12.7% of hospitalizations (12.0% red blood cell [RBC], 4.9% plasma, and 2.5% platelet transfusions). Only 1.9% of cases were associated with transfusion of all three blood components. Hospitalizations with major/extreme severity of illness had significantly higher prevalence of transfusion versus those with mild/moderate severity [crude PR = 4.79 (95%CI:4.15-5.33, p < .001)]. Overall, 8.2% of hospitalizations with GSW died, of whom 26.8% required blood transfusions, which was significantly higher than survivors [crude PR = 2.34 (95%CI:2.10-2.61, p < .001)]. The vast majority (95%) of the transfusions among those who died were within 48 h since admission., Conclusions: Gun-related violence is a public health emergency in the US, and GSWs are a source of significant mortality, blood utilization, and health care costs., (© 2021 AABB.)
- Published
- 2021
- Full Text
- View/download PDF
48. (A Little) Clarity on Convalescent Plasma for Covid-19.
- Author
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Katz LM
- Subjects
- Aged, Humans, Immunization, Passive, Plasma, SARS-CoV-2, COVID-19 Serotherapy, COVID-19 therapy, Coronavirus Infections
- Published
- 2021
- Full Text
- View/download PDF
49. Buffy coat platelets coming to America: Are we ready?
- Author
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Gammon RR, Devine D, Katz LM, Quinley E, Wu Y, Rowe K, Razatos A, Min K, Reichenberg S, and Smith R
- Subjects
- Blood Donors, Blood Preservation, Canada, Humans, Licensure, Time Factors, United States, Blood Banks organization & administration, Blood Buffy Coat cytology, Blood Platelets, Platelet Transfusion legislation & jurisprudence, Platelet Transfusion standards
- Abstract
Background: Buffy coat (BC) platelets (PLTs) have been used globally for many years. In 2004 Canadian Blood Services (CBS) made the decision to transition from PLT-rich plasma (PRP) to BC PLTs. We reviewed the benefits and manufacture process of BC and the implementation challenges involved., Study Design and Methods: A literature review was performed in the following areas: BC efficacy, donor population shifts, production and good stewardship of PLTs, logistic considerations with overnight holds, advantages of the overnight hold, the CBS experience, licensure and standards, and changes needed to produce BC PLTs in the United States. The aim was to analyze current practice and identify possible actions for blood centers and hospitals., Results: Implementation of BC would offer an additional source of PLTs to address the growing elderly population and the declining apheresis donor base. Substantial logistic, operational, and financial benefits were seen when CBS transitioned to BC with overnight hold., Conclusions: Buffy coat blood products are widely used throughout the world. Recent conversion from PRP to BC by CBS showed that conversion can be accomplished with planning, communication, and partnership from all stakeholders. In conclusion, BC PLTs are worth serious consideration in the United States, but regulatory barriers in the United States will need to be addressed., (© 2020 AABB.)
- Published
- 2021
- Full Text
- View/download PDF
50. Modern Management of High-risk Soft Tissue Sarcoma With Neoadjuvant Chemoradiation: A Single-center Experience.
- Author
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Byun DJ, Katz LM, Xiao J, Rapp TB, Paoluzzi L, Rosen G, and Schiff PB
- Subjects
- Adolescent, Adult, Aged, Disease-Free Survival, Female, Humans, Ifosfamide therapeutic use, Kaplan-Meier Estimate, Male, Middle Aged, Neoadjuvant Therapy adverse effects, Radiotherapy, Intensity-Modulated methods, Sarcoma mortality, Sarcoma pathology, Sarcoma surgery, Time Factors, Treatment Outcome, Young Adult, Neoadjuvant Therapy methods, Sarcoma therapy
- Abstract
Objective: Neoadjuvant chemoradiation (NA-CRT), followed by resection of high-risk soft tissue sarcoma (STS), may offer good disease control and toxicity outcomes. We report on a single institution's modern NA-CRT experience., Materials and Methods: Delay to surgical resection, resection margin status, extent of necrosis, tumor cell viability, presence of hyalinization, positron emission tomography (PET)/computed tomography data, and treatment toxicities were collected. Using the Kaplan-Meier survival analysis, 5-year overall survival, disease-free survival, distant metastasis-free survival, and local control (LC) were estimated. Clinicopathologic features and PET/computed tomography avidity changes were assessed for their potential predictive impact using the log-rank test., Results: From 2011 to 2018, 37 consecutive cases of localized high-risk STS were identified. Twenty-nine patients underwent ifosfamide-based NA-CRT to a median dose of 50 Gy before en bloc resection. At a median follow-up of 40.3 months, estimated 5-year overall survival was 86.1%, disease-free survival 70.2%, distant metastasis-free survival 75.2%, and LC 86.7%. Following NA-CRT, a median reduction of 54.7% was observed in tumor PET avidity; once resected, median tumor necrosis of 60.0% with no viable tumor cells was detected in 13.8% of the cases. Posttreatment resection margins were negative in all patients, with 27.6% having a margin of ≤1 mm. Delays of over 6 weeks following the end of radiation treatment to surgical resection occurred in 20.7% cases and was suggestive of inferior LC (92.8% vs. 68.6%, P=0.025)., Conclusions: This single-institution series of NA-CRT demonstrates favorable disease control. Delay in surgical resection was associated with inferior LC, a finding that deserves further evaluation in a larger cohort., Level of Evidence: Level III-retrospective cohort study., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
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