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https://www.readbyqxmd.com/read/27818559/operation-of-the-preclinical-head-scanner-for-proton-ct
#1
H F-W Sadrozinski, T Geoghegan, E Harvey, R P Johnson, T E Plautz, A Zatserklyaniy, V Bashkirov, R F Hurley, P Piersimoni, R W Schulte, P Karbasi, K E Schubert, B Schultze, V Giacometti
We report on the operation and performance tests of a preclinical head scanner developed for proton computed tomography (pCT). After extensive preclinical testing, pCT is intended to be employed in support of proton therapy treatment planning and pre-treatment verification in patients undergoing particle-beam therapy. In order to assess the performance of the scanner, we have performed CT scans with 200 MeV protons from both the synchrotron of the Loma Linda University Medical Center (LLUMC) and the cyclotron of the Northwestern Medicine Chicago Proton Center (NMCPC)...
September 21, 2016: Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
https://www.readbyqxmd.com/read/27806590/a-scintillator-based-approach-to-monitor-secondary-neutron-production-during-proton-therapy
#2
S D Clarke, E Pryser, B M Wieger, S A Pozzi, R A Haelg, V A Bashkirov, R W Schulte
PURPOSE: The primary objective of this work is to measure the secondary neutron field produced by an uncollimated proton pencil beam impinging on different tissue-equivalent phantom materials using organic scintillation detectors. Additionally, the Monte Carlo code mcnpx-PoliMi was used to simulate the detector response for comparison to the measured data. Comparison of the measured and simulated data will validate this approach for monitoring secondary neutron dose during proton therapy...
November 2016: Medical Physics
https://www.readbyqxmd.com/read/27780000/complications-of-diverting-ileostomy-after-low-anterior-resection-for-rectal-carcinoma
#3
Sean Maroney, Carlos Chavez de Paz, Marjunphilip Duldulao, Tracey Kim, Mark E Reeves, Kevork K Kazanjian, Naveenraj Solomon, Carlos Garberoglio
There have been few studies directly comparing the postoperative complications in patients with a diverting ileostomy to patients who were not diverted after low anterior resection (LAR) for rectal carcinoma. This study is a retrospective chart review of all rectal carcinoma patients (99) who underwent a LAR from January 2009 to December 2014 at Loma Linda University Medical Center and Veterans Affairs Loma Linda Healthcare System. A majority of patients were diverted (58% vs 42%). The diverted patients were more likely to have a low tumor location (P < 0...
October 2016: American Surgeon
https://www.readbyqxmd.com/read/27377433/-mineral-trioxide-aggregate-mta-a-success-story-in-apical-surgery
#4
REVIEW
Thomas von Arx
The objective of apical surgery is to retain teeth with persistent apical pathosis following orthograde root canal treatment if endodontic non-surgical revision is difficult or associated with risks, or is even declined by the patient. Since the most frequent cause of recurrent apical disease is bacterial reinfection from the (remaining) root canal system, the bacteria-tight root-end filling is the most important step in apical surgery. In the early 1990s, mineral trioxide aggregate (MTA) was developed at the Loma Linda University in California/USA...
2016: Swiss Dental Journal
https://www.readbyqxmd.com/read/27280539/food-intake-diet-and-sperm-characteristics-in-a-blue-zone-a-loma-linda-study
#5
Eliza M Orzylowska, John D Jacobson, Gihan M Bareh, Edmund Y Ko, Johannah U Corselli, Philip J Chan
OBJECTIVES: The study examined the effect the life-long vegetarian diet on male fertility and focused on vegetarians living in the Loma Linda blue zone, a demographic area known for life longevity. The objective was to compare sperm characteristics of vegetarian with non-vegetarian males. STUDY DESIGN: The cross-sectional observational study was based on semen analyses of 474 males from 2009 to 2013. Patients categorized themselves as either life-long lacto-ovo vegetarians (N=26; vegetable diet with dairy and egg products), vegans (N=5; strictly vegetables with no animal products) or non-vegetarians (N=443; no diet restrictions)...
August 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27220823/comparative-effectiveness-of-3-bariatric-surgery-procedures-roux-en-y-gastric-bypass-laparoscopic-adjustable-gastric-band-and-sleeve-gastrectomy
#6
Jenny H Lee, Quynh-Nhu Nguyen, Quang A Le
BACKGROUND: Bariatric surgery is associated with improved co-morbidities, quality of life, and survival in severely obese patients. Common bariatric surgery procedures include Roux-en-Y gastric bypass (RYGB), laparoscopic adjustable gastric band (LAGB), and sleeve gastrectomy (SG). Currently, literature studying comparative effectiveness on different bariatric surgery procedures in veterans is limited. OBJECTIVES: To compare effectiveness of 3 bariatric surgery procedures performed in veterans...
June 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/27152035/reactive-mesothelial-hyperplasia-associated-with-chronic-peritonitis-in-a-20-year-old-quarter-horse
#7
Laura L Hoon-Hanks, Emily D Rout, Linda M Vap, Tawfik A Aboellail, Diana M Hassel, Yvette S Nout-Lomas
A 20-year-old gelding was diagnosed with peritonitis and severe reactive mesothelial hyperplasia. Exploratory laparotomy findings were suggestive of a neoplastic etiology; however, additional diagnostics ruled this out and the horse made a full recovery. This report demonstrates the difficulty and value of differentiating between reactive and neoplastic mesothelial processes.
May 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/27127307/a-fast-experimental-scanner-for-proton-ct-technical-performance-and-first-experience-with-phantom-scans
#8
Robert P Johnson, Vladimir Bashkirov, Langley DeWitt, Valentina Giacometti, Robert F Hurley, Pierluigi Piersimoni, Tia E Plautz, Hartmut F-W Sadrozinski, Keith Schubert, Reinhard Schulte, Blake Schultze, Andriy Zatserklyaniy
We report on the design, fabrication, and first tests of a tomographic scanner developed for proton computed tomography (pCT) of head-sized objects. After extensive preclinical testing, pCT is intended to be employed in support of proton therapy treatment planning and pre-treatment verification in patients undergoing particle-beam therapy. The scanner consists of two silicon-strip telescopes that track individual protons before and after the phantom, and a novel multistage scintillation detector that measures a combination of the residual energy and range of the proton, from which we derive the water equivalent path length (WEPL) of the protons in the scanned object...
February 2016: IEEE Transactions on Nuclear Science
https://www.readbyqxmd.com/read/27119805/employee-spiritual-care-supporting-those-who-care-for-others
#9
Kathleen McMillan
In order to provide whole-person care for patients and families, Loma Linda University Health recognizes the importance of supporting employee wholeness. The Employee Spiritual Care department helps create and support an environment that nurtures the spiritual health and wholeness of employees, and provides employees tools and knowledge about providing whole-person care to patients and colleagues.
April 2016: Journal of Christian Nursing: a Quarterly Publication of Nurses Christian Fellowship
https://www.readbyqxmd.com/read/27101500/intraoperative-red-blood-cell-transfusion-in-infant-heart-transplant-patients-is-not-associated-with-worsened-outcomes
#10
Harmony F Carter, Carol Lau, David Juma, Briana Wells, Richard L Applegate
BACKGROUND: Red blood cell (RBC) transfusion is common during infant cardiac surgery. A previous report of pediatric heart transplant recipients showed that increased RBC transfusion volume was independently associated with increased length of intensive care unit stay. It is unclear whether transfusion to infants as a subgroup carries similar risks. This study investigated relationships between intraoperative RBC transfusion during heart transplantation and postoperative length of stay (LOS), morbidity, and mortality in infants...
May 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/26843230/novel-scintillation-detector-design-and-performance-for-proton-radiography-and-computed-tomography
#11
V A Bashkirov, R W Schulte, R F Hurley, R P Johnson, H F-W Sadrozinski, A Zatserklyaniy, T Plautz, V Giacometti
PURPOSE: Proton computed tomography (pCT) will enable accurate prediction of proton and ion range in a patient while providing the benefit of lower radiation exposure than in x-ray CT. The accuracy of the range prediction is essential for treatment planning in proton or ion therapy and depends upon the detector used to evaluate the water-equivalent path length (WEPL) of a proton passing through the object. A novel approach is presented for an inexpensive WEPL detector for pCT and proton radiography...
February 2016: Medical Physics
https://www.readbyqxmd.com/read/26823922/the-san-bernardino-california-terror-attack-two-emergency-departments-response
#12
Carol Lee, Elizabeth Walters, Rodney Borger, Kathleen Clem, Gregory Fenati, Michael Kiemeney, Sakona Seng, Ho-Wang Yuen, Michael Neeki, Dustin Smith
On December 2, 2015, a terror attack in the city of San Bernardino, California killed 14 Americans and injured 22 in the deadliest attack on U.S. soil since September 11, 2001. Although emergency personnel and law enforcement officials frequently deal with multi-casualty incidents (MCIs), what occurred that day required an unprecedented response. Most of the severely injured victims were transported to either Loma Linda University Medical Center (LLUMC) or Arrowhead Regional Medical Center (ARMC). These two hospitals operate two designated trauma centers in the region and played crucial roles during the massive response that followed this attack...
January 2016: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/26684512/right-ventricular-ejection-fraction-in-ischemic-versus-nonischemic-cardiomyopathy
#13
Stephen Wasemiller, Tiffany Earle, Michael Kashner, Gary Foster, Helme Silvet
The relation between the etiology of cardiomyopathy and the function of the right ventricle (RV) has not been well described in the current era of 3-dimensional cardiac imaging. New advances in cardiac imaging with computed tomography (CT) have allowed accurate measurements of ejection fraction (EF), often a challenging task considering the unique RV shape. We evaluated 130 patients at the Loma Linda Veterans Affairs Healthcare System with cardiomyopathy and a left ventricular (LV) EF ≤ 40%. Etiology of cardiomyopathy was determined by CT angiography as ischemic (n = 56) or nonischemic (n = 74)...
January 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/26640610/reasons-to-use-and-disclose-use-of-complementary-medicine-use-an-insight-from-cancer-patients
#14
Kristen Arthur, Juan Carlos Belliard, Steven B Hardin, Kathryn Knecht, Chien-Shing Chen, Susanne Montgomery
Studies have shown a high prevalence (40-83%) of complementary and alternative medicine (CAM) use among cancer patients in the U.S.A cross-sectional, mixed-methods pilot study was completed. This paper focuses on the quantitative analysis conducted on demographic predictors of complementary medicine (CM) use, reasons to use CM, and disclosure to healthcare provider data. Surveys were interview-administered at the Loma Linda University Medical Center Cancer Center. Participants, 18 years or older, were selected from a convenient sample...
November 2013: Cancer and Clinical Oncology
https://www.readbyqxmd.com/read/26463285/initial-results-of-multigene-panel-testing-for-hereditary-breast-and-ovarian-cancer-and-lynch-syndrome
#15
Dt R Howarth, Sharon S Lum, Pamela Esquivel, Carlos A Garberoglio, Maheswari Senthil, Naveenraj L Solomon
Multigene panel testing for hereditary cancer risk has recently become commercially available; however, the impact of its use on patient care is undefined. We sought to evaluate results from implementation of panel testing in a multidisciplinary cancer center. We performed a retrospective review of consecutive patients undergoing genetic testing after initiating use of multigene panel testing at Loma Linda University Medical Center. From February 13 to August 25, 2014, 92 patients were referred for genetic testing based on National Comprehensive Cancer Network guidelines...
October 2015: American Surgeon
https://www.readbyqxmd.com/read/26412000/comparison-of-treatment-outcomes-in-digital-and-conventional-complete-removable-dental-prosthesis-fabrications-in-a-predoctoral-setting
#16
Mathew T Kattadiyil, Rami Jekki, Charles J Goodacre, Nadim Z Baba
STATEMENT OF PROBLEM: Scientific evidence is lacking regarding the clinical effectiveness of digital complete removable dental prostheses (CRDP). PURPOSE: This prospective clinical study was conducted to compare clinical treatment outcomes, patient satisfaction, and dental student preferences for digitally and conventionally processed CRDP in a predoctoral setting. MATERIAL AND METHODS: This clinical study rated and compared CRDP fabricated by predoctoral students, using a 2-appointment digital prosthesis fabrication process as opposed to the conventional 5-appointment process...
December 2015: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/26274879/shared-medical-appointments-an-innovative-approach-to-patient-care
#17
REVIEW
Cora A Caballero
This article provides an overview of shared medical appointments, an innovative approach to managing patients with chronic conditions. The Diabetes Shared Medical Appointment of the Veterans Affairs Loma Linda Healthcare System, conducted by an interprofessional team and led by a nurse practitioner, is described.
September 13, 2015: Nurse Practitioner
https://www.readbyqxmd.com/read/26172488/demographics-of-us-pediatric-contact-dermatitis-registry-providers
#18
Alina Goldenberg, Sharon E Jacob
BACKGROUND: Children are as likely as adults to be sensitized and reactive to contact allergens. However, the prevailing data on pediatric allergic contact dermatitis are quantitatively and qualitatively limited because of a narrow geographic localization of data-reporting providers. OBJECTIVE: The aim of the study was to present the first quarter results from the Loma Linda Pediatric Contact Dermatitis Registry focused on registered providers who self-identified as providing care for pediatric allergic contact dermatitis (ACD) within the United States...
July 2015: Dermatitis
https://www.readbyqxmd.com/read/26077535/comfort-levels-among-predoctoral-dental-and-dental-hygiene-students-in-treating-patients-at-high-risk-for-hiv-aids
#19
Zuhair S Natto, Majdi Aladmawy, Thomas C Rogers
PURPOSE: The purpose of this article is to discuss the impact of the training program for predoctoral dental and hygiene students at Loma Linda University School of Dentistry (LLUSD) with regard to issues related to treating patients with a high risk of having HIV/AIDS. METHODS: LLUSD offers a training program for fourth-year dental hygiene and predoctoral dental students that addresses the oral health care needs of persons with HIV disease. The training occurs in small groups 2 days per week at a community clinic serving HIV-positive individuals...
June 2015: Journal of Dental Hygiene: JDH
https://www.readbyqxmd.com/read/26026141/humors-effect-on-short-term-memory-in-healthy-and-diabetic-older-adults
#20
RANDOMIZED CONTROLLED TRIAL
Gurinder Singh Bains, Lee S Berk, Everett Lohman, Noha Daher, Jerrold Petrofsky, Ernie Schwab, Pooja Deshpande
CONTEXT: With aging, the detrimental effects of stress can impair a person's ability to learn and sustain memory. Humor and its associated mirthful laughter can reduce stress by decreasing the hormone cortisol. Chronic release of cortisol can damage hippocampal neurons, leading to impairment of learning and memory. Objectives • The study intended to examine the effect of watching a humor video on short-term memory in older adults. Design • The research team designed a randomized, controlled trial...
May 2015: Alternative Therapies in Health and Medicine
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