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John M. Rhee

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https://www.readbyqxmd.com/read/28421638/renal-replacement-therapy-and-incremental-hemodialysis-for-veterans-with-advanced-chronic-kidney-disease
#1
Kamyar Kalantar-Zadeh, Susan T Crowley, Srinivasan Beddhu, Joline L T Chen, John T Daugirdas, David S Goldfarb, Anna Jin, Csaba P Kovesdy, David J Leehey, Hamid Moradi, Sankar D Navaneethan, Keith C Norris, Yoshitsugu Obi, Ann O'Hare, Tariq Shafi, Elani Streja, Mark L Unruh, Tushar J Vachharajani, Steven Weisbord, Connie M Rhee
Each year approximately 13,000 Veterans transition to maintenance dialysis, mostly in the traditional form of thrice-weekly hemodialysis from the start. Among >6000 dialysis units nationwide, there are currently approximately 70 Veterans Affairs (VA) dialysis centers. Given this number of VA dialysis centers and their limited capacity, only 10% of all incident dialysis Veterans initiate treatment in a VA center. Evidence suggests that, among Veterans, the receipt of care within the VA system is associated with favorable outcomes, potentially because of the enhanced access to healthcare resources...
April 18, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28371867/erratum
#2
Yoshitsugu Obi, Kamyar Kalantar-Zadeh, Elani Streja, Connie M Rhee, Uttam G Reddy, Melissa Soohoo, Yaping Wang, Vanessa Ravel, Amy S You, Jennie Jing, John J Sim, Danh V Nguyen, Daniel L Gillen, Rajiv Saran, Bruce Robinson, Csaba P Kovesdy
No abstract text is available yet for this article.
March 20, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340656/advances-in-technology-for-functional-rhinoplasty-the-next-frontier
#3
REVIEW
Sachin S Pawar, Guilherme J M Garcia, John S Rhee
Advances in computer modeling and simulation technologies have the potential to provide facial plastic surgeons with information and tools that can aid in patient-specific surgical planning for rhinoplasty. Finite element modeling and computational fluid dynamics are modeling technologies that have been applied to the nose to study structural biomechanics and nasal airflow. Combining these technologies with patient-specific imaging data and symptom measures has the potential to alter the future landscape of nasal surgery...
May 2017: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/28291617/blood-pressure-before-initiation-of-maintenance-dialysis-and-subsequent-mortality
#4
Keiichi Sumida, Miklos Z Molnar, Praveen K Potukuchi, Fridtjof Thomas, Jun Ling Lu, Vanessa A Ravel, Melissa Soohoo, Connie M Rhee, Elani Streja, John J Sim, Kunihiro Yamagata, Kamyar Kalantar-Zadeh, Csaba P Kovesdy
BACKGROUND: Mortality is extremely high immediately after the transition to dialysis therapy, but the association of blood pressure (BP) before dialysis therapy initiation with mortality after dialysis therapy initiation remains unknown. STUDY DESIGN: Observational study. SETTING & PARTICIPANTS: 17,729 US veterans transitioning to dialysis therapy in October 2007 to September 2011, with a median follow-up of 2.0 years. PREDICTOR: Systolic (SBP) and diastolic BP (DBP) averaged over the last 1-year predialysis transition period as 6 (<120 to ≥160mmHg in 10-mmHg increments) and 5 (<60 to ≥90mmHg in 10-mmHg increments) categories, respectively, and as continuous measures...
March 10, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28236831/us-renal-data-system-2016-annual-data-report-epidemiology-of-kidney-disease-in-the-united-states
#5
EDITORIAL
Rajiv Saran, Bruce Robinson, Kevin C Abbott, Lawrence Y C Agodoa, John Ayanian, Jennifer Bragg-Gresham, Rajesh Balkrishnan, Joline L T Chen, Elizabeth Cope, Paul W Eggers, Daniel Gillen, Debbie Gipson, Susan M Hailpern, Yoshio N Hall, Yun Han, Kevin He, William Herman, Michael Heung, David Hutton, Steven J Jacobsen, Kamyar Kalantar-Zadeh, Csaba P Kovesdy, Yi Li, Yee Lu, Miklos Z Molnar, Hal Morgenstern, Brahmajee Nallamothu, Danh V Nguyen, Ann M O'Hare, Yoshitsugu Obi, Brett Plattner, Ronald Pisoni, Friedrich K Port, Panduranga Rao, Vanessa Ravel, Connie M Rhee, Ankit Sakhuja, Douglas E Schaubel, David T Selewski, John J Sim, Peter Song, Elani Streja, Manjula Kurella Tamura, Francesca Tentori, Sarah White, Kenneth Woodside, Richard A Hirth, Vahakn Shahinian
No abstract text is available yet for this article.
March 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28201764/seasonal-variations-in-transition-mortality-and-kidney-transplantation-among-patients-with-end-stage-renal-disease-in-the-usa
#6
Yoshitsugu Obi, Kamyar Kalantar-Zadeh, Elani Streja, Connie M Rhee, Uttam G Reddy, Melissa Soohoo, Yaping Wang, Vanessa Ravel, Amy S You, Jennie Jing, John J Sim, Danh V Nguyen, Daniel L Gillen, Rajiv Saran, Bruce Robinson, Csaba P Kovesdy
Background: Seasonal variations may exist in transitioning to dialysis, kidney transplantation and related outcomes among end-stage renal disease (ESRD) patients. Elucidating these variations may have major clinical and healthcare policy implications for better resource allocation across seasons. Methods: Using the United States Renal Data System database from 1 January 2000 to 31 December 2013, we calculated monthly counts of transitioning to dialysis or first transplantation and deaths...
April 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28201698/transition-of-care-from-pre-dialysis-prelude-to-renal-replacement-therapy-the-blueprints-of-emerging-research-in-advanced-chronic-kidney-disease
#7
Kamyar Kalantar-Zadeh, Csaba P Kovesdy, Elani Streja, Connie M Rhee, Melissa Soohoo, Joline L T Chen, Miklos Z Molnar, Yoshitsugu Obi, Daniel Gillen, Danh V Nguyen, Keith C Norris, John J Sim, Steve S Jacobsen
In patients with advanced (estimated glomerular filtration rate <25 mL/min/1.73 m2) non-dialysis-dependent chronic kidney disease (CKD) the optimal transition of care to renal replacement therapy (RRT), i.e. dialysis or transplantation, is not known. Mortality and hospitalization risk are extremely high upon transition and in the first months following the transition to dialysis. Major knowledge gaps persist pertaining to differential or individualized transitions across different demographics and clinical measures during the 'prelude' period prior to the transition, particularly in several key areas: (i) the best timing for RRT transition; (ii) the optimal RRT type (dialysis versus transplant), and in the case of dialysis, the best modality (hemodialysis versus peritoneal dialysis), format (in-center versus home), frequency (infrequent versus thrice-weekly versus more frequent) and vascular access preparation; (iii) the post-RRT impact of pre-RRT prelude conditions and events such as blood pressure and glycemic control, acute kidney injury episodes, and management of CKD-specific conditions such as anemia and mineral disorders; and (iv) the impact of the above prelude conditions on end-of-life care and RRT decision-making versus conservative management of CKD...
April 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28139171/correlation-between-subjective-nasal-patency-and-intranasal-airflow-distribution
#8
Kevin P Casey, Azadeh A T Borojeni, Lisa J Koenig, John S Rhee, Guilherme J M Garcia
Objectives (1) Analyze the relationship between intranasal airflow distribution and subjective nasal patency in healthy and nasal airway obstruction (NAO) cohorts using computational fluid dynamics (CFD). (2) Determine whether intranasal airflow distribution is an important objective measure of airflow sensation that should be considered in future NAO virtual surgery planning. Study Design Cross-sectional. Setting Academic tertiary medical center and academic dental clinic. Subjects and Methods Three-dimensional models of nasal anatomy were created based on computed tomography scans of 15 patients with NAO and 15 healthy subjects and used to run CFD simulations of nasal airflow and mucosal cooling...
April 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28092341/unilateral-spinous-process-non-covering-hook-type-patient-specific-drill-template-for-thoracic-pedicle-screw-fixation-a-pilot-clinical-trial-and-template-classification
#9
Sang Bum Kim, Yougun Won, Hyun Jin Yoo, Lee Jae Sin, John M Rhee, Sang Wook Lee, Gi-Soo Lee
STUDY DESIGN: Prospective Clinical Pilot tudy OBJECTIVE.: To confirm the accuracy of thoracic pedicle screw placement by using the unilateral spinous non-covering hook type patient-specific drill template (PSDT) made through rapid prototyping (RP) and to analyze previously reported PSDT designs and their characteristics. SUMMARY OF BACKGROUND DATA: Pedicle screw fixation is the most common form of the posterior instrumentation of the thoracic and lumbar spine. Various techniques have been introduced to improve pedicle screw placement...
January 13, 2017: Spine
https://www.readbyqxmd.com/read/28089607/estimates-of-nasal-airflow-at-the-nasal-cycle-mid-point-improve-the-correlation-between-objective-and-subjective-measures-of-nasal-patency
#10
Courtney Gaberino, John S Rhee, Guilherme J M Garcia
INTRODUCTION: The nasal cycle represents a significant challenge when comparing pre- and post-surgery objective measures of nasal airflow. METHODS: Computational fluid dynamics (CFD) simulations of nasal airflow were conducted in 12 nasal airway obstruction patients showing significant nasal cycling between pre- and post-surgery computed tomography scans. To correct for the nasal cycle, mid-cycle models were created virtually. Subjective scores of nasal patency were obtained via the Nasal Obstruction Symptom Evaluation (NOSE) and unilateral visual analog scale (VAS)...
April 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28018601/the-society-for-immunotherapy-of-cancer-consensus-statement-on-immunotherapy-for-the-treatment-of-hematologic-malignancies-multiple-myeloma-lymphoma-and-acute-leukemia
#11
Michael Boyiadzis, Michael R Bishop, Rafat Abonour, Kenneth C Anderson, Stephen M Ansell, David Avigan, Lisa Barbarotta, Austin John Barrett, Koen Van Besien, P Leif Bergsagel, Ivan Borrello, Joshua Brody, Jill Brufsky, Mitchell Cairo, Ajai Chari, Adam Cohen, Jorge Cortes, Stephen J Forman, Jonathan W Friedberg, Ephraim J Fuchs, Steven D Gore, Sundar Jagannath, Brad S Kahl, Justin Kline, James N Kochenderfer, Larry W Kwak, Ronald Levy, Marcos de Lima, Mark R Litzow, Anuj Mahindra, Jeffrey Miller, Nikhil C Munshi, Robert Z Orlowski, John M Pagel, David L Porter, Stephen J Russell, Karl Schwartz, Margaret A Shipp, David Siegel, Richard M Stone, Martin S Tallman, John M Timmerman, Frits Van Rhee, Edmund K Waller, Ann Welsh, Michael Werner, Peter H Wiernik, Madhav V Dhodapkar
Increasing knowledge concerning the biology of hematologic malignancies as well as the role of the immune system in the control of these diseases has led to the development and approval of immunotherapies that are resulting in impressive clinical responses. Therefore, the Society for Immunotherapy of Cancer (SITC) convened a hematologic malignancy Cancer Immunotherapy Guidelines panel consisting of physicians, nurses, patient advocates, and patients to develop consensus recommendations for the clinical application of immunotherapy for patients with multiple myeloma, lymphoma, and acute leukemia...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27922577/is-it-in-or-out-the-optimal-fluoroscopic-views-for-intraoperative-determination-of-proper-lateral-mass-screw-placement
#12
Sang Bum Kim, John M Rhee, Byung Hak Oh, You Gun Won, Yousun Jung, Kun Young Park, William C Hutton, Chulmin Kim
STUDY DESIGN: Cadaveric OBJECTIVE.: Determine optimal fluoroscopic views for detecting cervical lateral mass screw (LMS) violations SUMMARY OF BACKGROUND DATA.: Single plane intraoperative xrays are commonly used but frequently inadequate due to its complex trajectory. Fluoroscopy can be taken in multiple planes, but the ideal fluoroscopic view to assess malposition is not known: depending on the view, any given screw may look "in" or "out". METHODS: C3-6 LMS were inserted in 3 cadavers...
December 2, 2016: Spine
https://www.readbyqxmd.com/read/27807125/a-genetic-epidemiological-mega-analysis-of-smoking-initiation-in-adolescents
#13
Hermine H Maes, Elizabeth Prom-Wormley, Lindon J Eaves, Soo Hyun Rhee, John K Hewitt, Susan Young, Robin Corley, Matt McGue, William G Iacono, Lisa Legrand, Diana R Samek, E Lenn Murrelle, Judy L Silberg, Donna R Miles, Richard M Schieken, Gaston P Beunen, Martine Thomis, Richard J Rose, Danielle M Dick, Dorret I Boomsma, Meike Bartels, Jacqueline M Vink, Paul Lichtenstein, Victoria White, Jaakko Kaprio, Michael C Neale
INTRODUCTION: Previous studies in adolescents were not adequately powered to accurately disentangle genetic and environmental influences on smoking initiation (SI) across adolescence. METHODS: Mega-analysis of pooled genetically informative data on SI was performed, with structural equation modeling, to test equality of prevalence and correlations across cultural backgrounds, and to estimate the significance and effect size of genetic and environmental effects according to the classical twin study, in adolescent male and female twins from same-sex and opposite-sex twin pairs (N = 19 313 pairs) between ages 10 and 19, with 76 358 longitudinal assessments between 1983 and 2007, from 11 population-based twin samples from the United States, Europe, and Australia...
November 2, 2016: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/27525807/creation-of-an-idealized-nasopharynx-geometry-for-accurate-computational-fluid-dynamics-simulations-of-nasal-airflow-in-patient-specific-models-lacking-the-nasopharynx-anatomy
#14
Azadeh A T Borojeni, Dennis O Frank-Ito, Julia S Kimbell, John S Rhee, Guilherme J M Garcia
Virtual surgery planning based on computational fluid dynamics (CFD) simulations has the potential to improve surgical outcomes for nasal airway obstruction patients, but the benefits of virtual surgery planning must outweigh the risks of radiation exposure. Cone beam computed tomography (CT) scans represent an attractive imaging modality for virtual surgery planning due to lower costs and lower radiation exposures compared with conventional CT scans. However, to minimize the radiation exposure, the cone beam CT sinusitis protocol sometimes images only the nasal cavity, excluding the nasopharynx...
August 15, 2016: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/27358272/serum-sodium-and-mortality-in-a-national-peritoneal-dialysis-cohort
#15
Vanessa A Ravel, Elani Streja, Rajnish Mehrotra, John J Sim, Kevin Harley, Juan Carlos Ayus, Alpesh N Amin, Steven M Brunelli, Csaba P Kovesdy, Kamyar Kalantar-Zadeh, Connie M Rhee
BACKGROUND: Sodium disarrays are common in peritoneal dialysis (PD) patients, and may be associated with adverse outcomes in this population. However, few studies of limited sample size have examined the association of serum sodium with mortality in PD patients, with inconsistent results. We hypothesized that both hypo- and hypernatremia are associated with higher death risk in a nationally representative cohort of US PD patients. METHODS: We sought to examine the association of serum sodium over time and mortality among 4687 adult incident PD patients from a large US dialysis organization who underwent one or more serum sodium measurements within the first 3 months of dialysis over January 2007 to December 2011...
June 29, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27352376/-inline-axial-reconstructed-ct-scans-provide-a-significantly-larger-assessment-of-c2-pedicle-diameter-for-screw-placement-compared-with-standard-axial-scans-implications-for-surgical-planning
#16
David E Vizurraga, John M Rhee, Timothy C Borden, Ashton S Mansour
STUDY DESIGN: Radiologic analysis. OBJECTIVE: The objective was to compare C2 pedicle diameter and screw feasibility on reconstructed axial computed tomography (CT) cuts created "Inline" (IL) with the intended pedicle screw tract versus unaltered "Standard" (STD) axial cuts. BACKGROUND DATA: Axial CT cuts through the C2 pedicle are commonly evaluated when planning pedicle screw fixation as medial aberrancies of the vertebral artery can significantly narrow pedicle diameter...
June 27, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27165673/impact-of-middle-versus-inferior-total-turbinectomy-on-nasal-aerodynamics
#17
Anupriya Dayal, John S Rhee, Guilherme J M Garcia
OBJECTIVES: This computational study aims to (1) use virtual surgery to theoretically investigate the maximum possible change in nasal aerodynamics after turbinate surgery, (2) quantify the relative contributions of the middle and inferior turbinates to nasal resistance and air conditioning, and (3) quantify to what extent total turbinectomy impairs the nasal air-conditioning capacity. STUDY DESIGN: Virtual surgery and computational fluid dynamics. SETTING: Academic tertiary medical center...
September 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/27083059/the-relationship-between-nasal-resistance-to-airflow-and-the-airspace-minimal-cross-sectional-area
#18
Guilherme J M Garcia, Benjamin M Hariri, Ruchin G Patel, John S Rhee
The relationship between nasal resistance (R) and airspace minimal cross-sectional area (mCSA) remains unclear. After the introduction of acoustic rhinometry, many otolaryngologists believed that mCSA measurements would correlate with subjective perception of nasal airway obstruction (NAO), and thus could provide an objective measure of nasal patency to guide therapy. However, multiple studies reported a low correlation between mCSA and subjective nasal patency, and between mCSA and R. This apparent lack of correlation between nasal form and function has been a long-standing enigma in the field of rhinology...
June 14, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/26975457/surgical-management-of-gorham-disease-involving-the-upper-cervical-spine-with-occipito-cervical-thoracic-fusion-a-case-report
#19
Adam Schell, John M Rhee, Abigail Allen, Lindsay Andras, Feifei Zhou
BACKGROUND CONTEXT: Gorham disease is a rare osteolytic condition, with only 17 reported cases primarily affecting the cervical spine. PURPOSE: We report the case of a 31-year-old woman with severe kyphotic instability and myelopathy of the upper cervical spine secondary to massive osteolysis of the posterior elements. The surgical management, clinical outcome, and review of the relevant literature are discussed. STUDY DESIGN: This is a case report and a literature review...
July 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/26925525/us-renal-data-system-2015-annual-data-report-epidemiology-of-kidney-disease-in-the-united-states
#20
REVIEW
Rajiv Saran, Yi Li, Bruce Robinson, Kevin C Abbott, Lawrence Y C Agodoa, John Ayanian, Jennifer Bragg-Gresham, Rajesh Balkrishnan, Joline L T Chen, Elizabeth Cope, Paul W Eggers, Daniel Gillen, Debbie Gipson, Susan M Hailpern, Yoshio N Hall, Kevin He, William Herman, Michael Heung, Richard A Hirth, David Hutton, Steven J Jacobsen, Kamyar Kalantar-Zadeh, Csaba P Kovesdy, Yee Lu, Miklos Z Molnar, Hal Morgenstern, Brahmajee Nallamothu, Danh V Nguyen, Ann M O'Hare, Brett Plattner, Ronald Pisoni, Friedrich K Port, Panduranga Rao, Connie M Rhee, Ankit Sakhuja, Douglas E Schaubel, David T Selewski, Vahakn Shahinian, John J Sim, Peter Song, Elani Streja, Manjula Kurella Tamura, Francesca Tentori, Sarah White, Kenneth Woodside, Richard A Hirth
No abstract text is available yet for this article.
March 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
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