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Bischoff A, Hayes K, Guimaraes C, Merritt A, Wickham M, Schneider L, Martin H, Ketzer J, Rodriguez V, Peña A, De La Torre L. Standardization of radiograph readings during bowel management week. Pediatr Surg Int 2023; 39:236. [PMID: 37468717 DOI: 10.1007/s00383-023-05513-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/03/2023] [Indexed: 07/21/2023]
Abstract
INTRODUCTION During "bowel management week," abdominal radiographs are used to monitor the amount and location of stool. A radiologist familiar with the treatment plan can provide an improved interpretation. The goal of this paper is to standardize the radiological reports during a bowel management week. METHODS We saw 744 patients during bowel management week from May 2016 until March 2023. Diagnosis included: anorectal malformation (397), idiopathic constipation (180), Hirschsprung disease (89), and spina bifida (78). Laxatives were the treatment for 51% of patients, and 49% received enemas. Characteristic radiographs were selected for each treatment group for a proposed reading standardization. RESULTS When the stool is visualized, it is crucial to report its location. Having a contrast enema helps with the correct interpretation of the colonic anatomy. It is also essential to always compare the amount of stool with the radiograph from the previous day to determine if there is an increase or decrease in stool. Examples of radiographs are shown to guide the use of the preferred proposed terminology. CONCLUSION Providing information regarding which treatment modality the patient is receiving and stating that a patient is on a bowel management week treatment is crucial for the radiologist to provide adequate interpretation. The radiologist must be familiar with the treatment goals and purpose of the daily radiograph.
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Affiliation(s)
- A Bischoff
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA.
| | - K Hayes
- Department of Radiology, Children's Hospital Colorado, Aurora, CO, USA
| | - C Guimaraes
- Department of Radiology, University of North Carolina, Chapel Hill, NC, USA
| | - A Merritt
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
| | - M Wickham
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
| | - L Schneider
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
| | - H Martin
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
| | - J Ketzer
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
| | - V Rodriguez
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
| | - A Peña
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
| | - L De La Torre
- Department of Pediatric Surgery, International Center for Colorectal and Urogenital Care, Children's Hospital Colorado, University of Colorado, Aurora, CO, USA
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Khan MM, Manduchi B, Rodriguez V, Fitch MI, Barbon CEA, McMillan H, Hutcheson KA, Martino R. Exploring patient experiences with a telehealth approach for the PRO-ACTIVE trial intervention in head and neck cancer patients. BMC Health Serv Res 2022; 22:1218. [PMID: 36180905 PMCID: PMC9523628 DOI: 10.1186/s12913-022-08554-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 09/11/2022] [Indexed: 02/03/2023] Open
Abstract
INTRODUCTION Following the COVID-19 directive to cease non-essential services, a rapid shift was made in the delivery of Speech Language Pathology (SLP) dysphagia management in the 3-arm, randomized PRO-ACTIVE trial. To inform future programs, this study explored patients' experiences with telehealth when the planned in-person SLP intervention was moved to a telehealth modality. METHODS A theory-guided qualitative descriptive approach was used. Willing participants who had received at least one telehealth swallowing therapy session participated in a one-time semi-structured interview. Interview transcripts were subjected to a standard qualitative content/theme analysis. Researchers reviewed all transcripts and used a multi-step analysis process to build a coding framework through consensus discussion. Summaries and key messages were generated for each code. RESULTS Eleven participants recounted their telehealth experiences and reported feeling satisfied, comfortable and confident with the session(s). They identified that previous experience with teleconferencing, access to optimal technical equipment, clinician skill, and caregiver assistance facilitated their telehealth participation. Participants highlighted that telehealth was beneficial as it reduced commuting time, COVID-19 exposure and fatigue from travel; and also allowed caregiver participation particularly during COVID. In comparing their in-person SLP sessions to telehealth sessions, limitations were also identified, including: lack of previous experience with and/or poor access to technology, and less opportunity for personalization. Participants indicated that use of phone alone was less preferred than an audio/video platform. DISCUSSION Patients reported that overall, telehealth sessions did not compromise their learning experience when compared to in-person sessions. Patients benefited from use of telehealth in several ways despite some limitations of the use of technology. Patient feedback about telehealth provides an important perspective that may be critical to inform best practices for care delivery.
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Affiliation(s)
- M M Khan
- Department of Speech-Language Pathology, University of Toronto, 160-500 University Avenue, Toronto, ON, M5G 1V7, Canada
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - B Manduchi
- Department of Speech-Language Pathology, University of Toronto, 160-500 University Avenue, Toronto, ON, M5G 1V7, Canada
- Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada
| | - V Rodriguez
- Department of Speech-Language Pathology, University of Toronto, 160-500 University Avenue, Toronto, ON, M5G 1V7, Canada
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - M I Fitch
- Bloomberg Faculty of Nursing, University of Toronto, Toronto, ON, Canada
| | - C E A Barbon
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, 7007 Bertner Ave., Houston, TX, 77030, USA
| | - H McMillan
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, 7007 Bertner Ave., Houston, TX, 77030, USA
| | - K A Hutcheson
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, 7007 Bertner Ave., Houston, TX, 77030, USA.
- Department of Radiation Oncology, The University of Texas, M.D. Anderson Cancer Center, Houston, TX, USA.
| | - R Martino
- Department of Speech-Language Pathology, University of Toronto, 160-500 University Avenue, Toronto, ON, M5G 1V7, Canada.
- Krembil Research Institute, University Health Network, Toronto, ON, Canada.
- Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada.
- Department of Otolaryngology- Head and Neck Surgery, University of Toronto, Toronto, ON, Canada.
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Subramanian S, Stead TG, Mangal RK, Rodriguez V, Ganti L. Olecranon Bursitis Secondary to Trauma. Cureus 2022; 14:e27306. [PMID: 36043017 PMCID: PMC9410534 DOI: 10.7759/cureus.27306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2022] [Indexed: 11/05/2022] Open
Abstract
The authors present a case of traumatic olecranon bursitis, initially presumed to be cellulitis. The clinical presentation, diagnosis, and management are discussed.
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Stead T, Hughes M, Fraunfelter F, Rodriguez V, Ganti L. Unvaccinated COVID-19 Pneumonia- a family affair. Health Psychol Res 2022; 10:34153. [DOI: 10.52965/001c.34153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 02/27/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
| | - Michael Hughes
- University of Central Florida and HCA Florida Hospital, Ocala, FL
| | | | | | - Latha Ganti
- University of Central Florida and HCA Florida Hospital, Ocala, FL
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Itabashi K, Suzuki K, Pandey B, Okuyama K, Gogami T, Nagao S, Nakamura S, Tang L, Abrams D, Akiyama T, Androic D, Aniol K, Ayerbe Gayoso C, Bane J, Barcus S, Barrow J, Bellini V, Bhatt H, Bhetuwal D, Biswas D, Camsonne A, Castellanos J, Chen JP, Chen J, Covrig S, Chrisman D, Cruz-Torres R, Das R, Fuchey E, Gnanvo K, Garibaldi F, Gautam T, Gomez J, Gueye P, Hague T, Hansen O, Henry W, Hauenstein F, Higinbotham D, Hyde C, Kaneta M, Keppel C, Kutz T, Lashley-Colthirst N, Li S, Liu H, Mammei J, Markowitz P, McClellan RE, Meddi F, Meekins D, Michaels R, Mihovilovic M, Moyer A, Nguyen D, Nycz M, Owen V, Palatchi C, Park S, Petkovic T, Premathilake S, Reimer P, Reinhold J, Riordan S, Rodriguez V, Samanta C, Santiesteban S, Sawatzky B, Širca S, Slifer K, Su T, Tian Y, Toyama Y, Uehara K, Urciuoli G, Votaw D, Williamson J, Wojtsekhowski B, Wood S, Yale B, Ye Z, Zhang J, Zheng X. Study of Λ n FSI with Λ quasi-free productions on the 3H( e, e′K+) X reaction at JLab. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227102006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract. An nnΛ is a neutral baryon system with no charge. The study of the pure Λ-neutron system such as nnΛ gives us information on the Λn interaction. The nnΛ search experiment (E12-17-003) was performed at JLab Hall A in 2018. In this article, the Λn FSI was investigated by a shape analysis of the 3H(e, e′K+)X missing mass spectrum, and a preliminary result for the Λn FSI study is given.
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Gogami T, Suzuki KN, Pandey B, Itabashi K, Nagao S, Okuyama K, Nakamura SN, Tang L, Abrams D, Akiyama T, Androic D, Aniol K, Ayerbe Gayoso C, Bane J, Barcus S, Barrow J, Bellini V, Bhatt H, Bhetuwal D, Biswas D, Camsonne A, Castellanos J, Chen JP, Chen J, Covrig S, Chrisman D, Cruz-Torres R, Das R, Fuchey E, Gnanvo K, Garibaldi F, Gautam T, Gomez J, Gueye P, Hague TJ, Hansen O, Henry W, Hauenstein F, Higinbotham DW, Hyde CE, Kaneta M, Keppel C, Kutz T, Lashley-Colthirst N, Li S, Liu H, Mammei J, Markowitz P, McClellan RE, Meddi F, Meekins D, Michaels R, Mihovilovic M, Moyer A, Nguyen D, Nycz M, Owen V, Palatchi C, Park S, Petkovic T, Premathilake S, Reimer PE, Reinhold J, Riordan S, Rodriguez V, Samanta C, Santiesteban SN, Sawatzky B, Širca S, Slifer K, Su T, Tian Y, Toyama Y, Uehara K, Urciuoli GM, Votaw D, Williamson J, Wojtsekhowski B, Wood SA, Yale B, Ye Z, Zhang J, Zheng X. Cross-section measurement of virtual photoproduction of iso-triplet three-body hypernucleus, Λ nn. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227102002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Missing-mass spectroscopy with the 3H(e, e′K+) reaction was carried out at Jefferson Lab’s (JLab) Hall A in Oct–Nov, 2018. The differential cross section for the 3H(γ∗, K+)Λnn was deduced at ω = Ee − Ee′ = 2.102 GeV and at the forward K+-scattering angle (0° ≤ θγ∗K ≤ 5°) in the laboratory frame. Given typical predicted energies and decay widths, which are (BΛ, Γ) = (−0.25, 0.8) and (−0.55, 4.7) MeV, the cross sections were found to be 11.2 ± 4.8(stat.)+4.1−2.1(sys.) and 18.1 ± 6.8(stat.)+4.2−2.9(sys.) nb/sr, respectively. The obtained result would impose a constraint for interaction models particularly between Λ and neutron by comparing to theoretical calculations.
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7
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Okuyama K, Itabashi K, Nagao S, Nakamura SN, Suzuki KN, Gogami T, Pandey B, Tang L, Abrams D, Akiyama T, Androic D, Aniol K, Ayerbe Gayoso C, Bane J, Barcus S, Barrow J, Bellini V, Bhatt H, Bhetuwal D, Biswas D, Camsonne A, Castellanos J, Chen JP, Chen J, Covrig S, Chrisman D, Cruz-Torres R, Das R, Fuchey E, Gnanvo K, Garibaldi F, Gautam T, Gomez J, Gueye P, Hague TJ, Hansen O, Henry W, Hauenstein F, Higinbotham DW, Hyde CE, Kaneta M, Keppel C, Kutz T, Lashley-Colthirst N, Li S, Liu H, Mammei J, Markowitz P, McClellan RE, Meddi F, Meekins D, Michaels R, Mihovilovic M, Moyer A, Nguyen D, Nycz M, Owen V, Palatchi C, Park S, Petkovic T, Premathilake S, Reimer PE, Reinhold J, Riordan S, Rodriguez V, Samanta C, Santiesteban SN, Sawatzky B, Širca S, Slifer K, Su T, Tian Y, Toyama Y, Uehara K, Urciuoli GM, Votaw D, Williamson J, Wojtsekhowski B, Wood SA, Yale B, Ye Z, Zhang J, Zheng X. Study of the Λ/Σ 0 electroproduction in the low- Q2 region at JLab. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227102003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
We performed an experiment using tritium and hydrogen cryogenic gas targets at Thomas Jefferson National Accelerator Facility (JLab) in 2018 (E12-17-003)[1, 2]. In this article, we discuss the Λ/Σ0 hyperon electroproduction from hydrogen target. Elementary Λ/Σ0 hyperon production processes are important not only for an absolute mass scale calibration in our experiment, but also for the study of the electroproduction mechanisms themselves. In this article, we reported the results of the differential cross section for the p(e, e’K+)Λ/Σ0 reaction at Q2 ∼ 0.5 (GeV/c)2.
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Shukla I, Stead TS, Aleksandrovskiy I, Rodriguez V, Ganti L. Symptomatic Pulmonary Hamartoma. Cureus 2021; 13:e18230. [PMID: 34692355 PMCID: PMC8526074 DOI: 10.7759/cureus.18230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2021] [Indexed: 11/05/2022] Open
Abstract
Pulmonary hamartoma is the most common benign tumor of the lungs. It is most often asymptomatic and is discovered incidentally. The condition is two to three times more common in men and is usually seen in the sixth to seventh decade of life. The authors present the case of a 44-year-old female in whom the condition was symptomatic, causing cough, shortness of breath, and fatigue. This case is unusual in that it occurred in a woman in her 40s and was symptomatic. The authors discuss the presentation, clinical features, and management of pulmonary hamartoma.
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Affiliation(s)
- Isha Shukla
- Emergency Medicine, Trinity Preparatory School, Winter Park, USA
| | - Thor S Stead
- Medicine, The Warren Alpert Medical School of Brown University, Providence, USA
| | | | - Vashun Rodriguez
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, USA
| | - Latha Ganti
- Emergency Medicine, Envision Physician Services, Plantation, USA.,Emergency Medicine, University of Central Florida College of Medicine, Orlando, USA.,Emergency Medicine, Ocala Regional Medical Center, Ocala, USA.,Emergency Medicine, HCA Healthcare Graduate Medical Education Consortium Emergency Medicine Residency Program of Greater Orlando, Orlando, USA
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9
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Romeo Marin M, Gil-Martin M, Gaba Garcia L, Fina C, Taus Á, Murata P, Masvidal M, Martinez A, Fernández-Plana J, García Y, Pérez C, Cros Costa S, Rodriguez V, Zanui M, Catot S, Plaja A, Teruel I, Pardo Búrdalo B, Barretina-Ginesta MP, Esteve A. 748P Real-world-data (RWD) on platinum (Pt)-based chemotherapy (CT) after PARP inhibitors (PARPi) in high-grade serous (or endometrioid) ovarian cancer (HGSEOC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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10
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Melton JD, Wilson K, Blind F, Barbera A, Bhisitkul D, Hasara S, Homa K, Karp J, Escowitz H, Haber T, DeGroot D, Anderson J, DeLeon J, Santos JDL, Faviere D, Fuell J, Gillespie R, Glueck J, Reeber C, Rhodes DJ, Rodriguez V. Impact of early versus late administration of bamlanivimab on readmissions in patients with high-risk COVID-19. Am J Emerg Med 2021; 50:437-441. [PMID: 34487951 PMCID: PMC8366036 DOI: 10.1016/j.ajem.2021.08.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/02/2021] [Accepted: 08/13/2021] [Indexed: 12/03/2022] Open
Abstract
Background Recombinant monoclonal antibody therapies have been utilized under emergency use authorization (EUA) for the prevention of clinical decompensation in high-risk COVID-19 positive patients for up to 10 days from symptom onset. The purpose of this study was to determine the impact of the timing of the monoclonal antibody, bamlanivimab, on clinical outcomes in high-risk COVID-19 positive patients. Methods This was an IRB-approved, retrospective evaluation of adult patients who received bamlanivimab per EUA criteria in the emergency department (ED). Patients were dichotomized into two groups– 3 days of symptoms or less (early) versus 4 to 10 days (late). The primary outcome was hospitalization for COVID-related illness at 28 days (or treatment failure). Secondary outcomes were COVID-related ED visits at 28 days, hospital and intensive care unit (ICU) length of stay (LOS), and in-hospital mortality at 28 days. Results A total of 839 patients were included in the analysis. There was no difference observed in COVID-related hospitalization rates within 28 days between the early and late bamlanivimab administration groups (7.5% vs. 8.2%, p = 0.71). There was no difference in COVID-related ED visits within 28 days with 13% of patients returning to the ED. Conclusions In conclusion, there were no differences in the rates of hospitalization at 28 days when bamlanivimab was administered in the first 3 days of illness versus days 4 to 10. Future prospective studies are warranted to expand upon the characteristics of patients that may or may not benefit from monoclonal antibody therapy.
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Affiliation(s)
- James D Melton
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Kayla Wilson
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA.
| | - Fred Blind
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Andrew Barbera
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Donna Bhisitkul
- Department of Pediatric Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Shannon Hasara
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Karen Homa
- Department of Research and Sponsored Studies, Lakeland Regional Health, Lakeland, FL, USA
| | - Juliana Karp
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Hal Escowitz
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Todd Haber
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Diana DeGroot
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Jonathan Anderson
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Jason DeLeon
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Jesse De Los Santos
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Donna Faviere
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Joanne Fuell
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Rita Gillespie
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Jesse Glueck
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Cliff Reeber
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - David J Rhodes
- Department of Pediatric Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
| | - Vashun Rodriguez
- Department of Emergency Medicine, Lakeland Regional Health, Lakeland, FL, USA
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Murray RM, Mondelli V, Stilo SA, Trotta A, Sideli L, Ajnakina O, Ferraro L, Vassos E, Iyegbe C, Schoeler T, Bhattacharyya S, Marques TR, Dazzan P, Lopez-Morinigo J, Colizzi M, O'Connor J, Falcone MA, Quattrone D, Rodriguez V, Tripoli G, La Barbera D, La Cascia C, Alameda L, Trotta G, Morgan C, Gaughran F, David A, Di Forti M. The influence of risk factors on the onset and outcome of psychosis: What we learned from the GAP study. Schizophr Res 2020; 225:63-68. [PMID: 32037203 DOI: 10.1016/j.schres.2020.01.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/06/2020] [Accepted: 01/09/2020] [Indexed: 01/05/2023]
Abstract
The GAP multidisciplinary study carried out in South London, recruited 410 first episode of psychosis patients and 370 controls; the aim was to elucidate the multiple genetic and environmental factors influencing the onset and outcome of psychosis. The study demonstrated the risk increasing effect of adversity in childhood (especially parental loss, abuse, and bullying) on onset of psychosis especially positive symptoms. Adverse life events more proximal to onset, being from an ethnic minority, and cannabis use also played important roles; indeed, one quarter of new cases of psychosis could be attributed to use of high potency cannabis. The "jumping to conclusions" bias appeared to mediate the effect of lower IQ on vulnerability to psychosis. We confirmed that environmental factors operate on the background of polygenic risk, and that genetic and environment act together to push individuals over the threshold for manifesting the clinical disorder. The study demonstrated how biological pathways involved in the stress response (HPA axis and immune system) provide important mechanisms linking social risk factors to the development of psychotic symptoms. Further evidence implicating an immune/inflammatory component to psychosis came from our finding of complement dysregulation in FEP. Patients also showed an upregulation of the antimicrobial alpha-defensins, as well as differences in expression patterns of genes involved in NF-κB signaling and Cytokine Production. Being of African origin not only increased risk of onset but also of a more difficult course of illness. The malign effect of childhood adversity predicted a poorer outcome as did continued use of high potency cannabis.
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Affiliation(s)
- R M Murray
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Experimental Biomedicine and Clinical Neuroscience, University of Palermo, Palermo, Italy.
| | - V Mondelli
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - S A Stilo
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Division of Psychology and Language Sciences, University College London, London, UK
| | - A Trotta
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - L Sideli
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Experimental Biomedicine and Clinical Neuroscience, University of Palermo, Palermo, Italy
| | - O Ajnakina
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - L Ferraro
- Department of Experimental Biomedicine and Clinical Neuroscience, University of Palermo, Palermo, Italy
| | - E Vassos
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - C Iyegbe
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - T Schoeler
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Psychiatry, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - S Bhattacharyya
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - T R Marques
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - P Dazzan
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - J Lopez-Morinigo
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Psychiatry, Universidad Autónoma de Madrid, Madrid, Spain
| | - M Colizzi
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - J O'Connor
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Neuropsychology, Royal Free London NHS Foundation Trust, Royal Free Hospital, London, UK
| | - M A Falcone
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - D Quattrone
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - V Rodriguez
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - G Tripoli
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Experimental Biomedicine and Clinical Neuroscience, University of Palermo, Palermo, Italy
| | - D La Barbera
- Department of Experimental Biomedicine and Clinical Neuroscience, University of Palermo, Palermo, Italy
| | - C La Cascia
- Department of Experimental Biomedicine and Clinical Neuroscience, University of Palermo, Palermo, Italy
| | - L Alameda
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - G Trotta
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Medicine and Surgery, University of Milano Bicocca, Monza, Italy
| | - C Morgan
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - F Gaughran
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - A David
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Institute of Mental Health, University College London, London, UK
| | - M Di Forti
- Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK; Department of Experimental Biomedicine and Clinical Neuroscience, University of Palermo, Palermo, Italy
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Manonelles G, Zaragoza S, Lubovich S, Rodriguez V, Ibarra L, Rodriguez E, Teper A. P100 Mycobacterium abscessus in paediatric cystic fibrosis patients in a reference centre in Argentina. J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30435-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Teper A, Rodriguez V, Lubovich S, Zaragoza S, Bournisen FG. P195 Real-life experience with CFTR modulators in Latin American cystic fibrosis patients homozygous p.F508. J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30530-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Perez Galan P, Valero J, Matas-Cespedes A, Rodriguez V, Arenas F, Carreras J, Serrat N, Guerrero-Hernandez M, Corbera M, Yahiaoui A, Martin S, Rivas-Delgado A, Tannheimer S, Cid M, Campo E, López-Guillermo A, Colomer D. DECIPHERING THE CONTRIBUTION OF MACROPHAGES TO FOLLICULAR LYMPHOMA PATHOGENESIS: NEW INSIGHTS INTO THERAPY. Hematol Oncol 2019. [DOI: 10.1002/hon.108_2629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - A. Matas-Cespedes
- Clinical pharmacology and Safety Sciences; Astra Zeneca; Cambridge United Kingdom
| | - V. Rodriguez
- Tumor Progression; Garvan Institute of Medical Research; Sydney Australia
| | - F. Arenas
- Hemato-Oncology; IDIBAPS; Barcelona Spain
| | - J. Carreras
- Pathology; Tokai University, School of Medicine; Kanagawa Japan
| | - N. Serrat
- Hemato-Oncology; IDIBAPS; Barcelona Spain
| | | | - M. Corbera
- Internal Medicine; IDIBAPS; Barcelona Spain
| | - A. Yahiaoui
- Oncology; Gilead Sciences; Seattle United States
| | - S. Martin
- Hemato-Oncology; IDIBAPS; Barcelona Spain
| | | | | | - M. Cid
- Internal Medicine; IDIBAPS; Barcelona Spain
| | - E. Campo
- Hemato-Oncology; IDIBAPS; Barcelona Spain
| | | | - D. Colomer
- Hemato-Oncology; IDIBAPS; Barcelona Spain
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15
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Green O, Price A, Cai B, Cammin J, Rodriguez V, Park J, Mutic S, Yang D. OC-0080 Comprehensive commissioning of MR-Linac online adaptive radiotherapy QA. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30500-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Henke LE, Contreras JA, Green OL, Cai B, Kim H, Roach MC, Olsen JR, Fischer-Valuck B, Mullen DF, Kashani R, Thomas MA, Huang J, Zoberi I, Yang D, Rodriguez V, Bradley JD, Robinson CG, Parikh P, Mutic S, Michalski J. Magnetic Resonance Image-Guided Radiotherapy (MRIgRT): A 4.5-Year Clinical Experience. Clin Oncol (R Coll Radiol) 2018; 30:720-727. [PMID: 30197095 PMCID: PMC6177300 DOI: 10.1016/j.clon.2018.08.010] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/19/2018] [Accepted: 08/21/2018] [Indexed: 10/28/2022]
Abstract
AIMS Magnetic resonance image-guided radiotherapy (MRIgRT) has been clinically implemented since 2014. This technology offers improved soft-tissue visualisation, daily imaging, and intra-fraction real-time imaging without added radiation exposure, and the opportunity for adaptive radiotherapy (ART) to adjust for anatomical changes. Here we share the longest single-institution experience with MRIgRT, focusing on trends and changes in use over the past 4.5 years. MATERIALS AND METHODS We analysed clinical information, including patient demographics, treatment dates, disease sites, dose/fractionation, and clinical trial enrolment for all patients treated at our institution using MRIgRT on a commercially available, integrated 0.35 T MRI, tri-cobalt-60 device from 2014 to 2018. For each patient, factors including disease site, clinical rationale for MRIgRT use, use of ART, and proportion of fractions adapted were summated and compared between individual years of use (2014-2018) to identify shifts in institutional practice patterns. RESULTS Six hundred and forty-two patients were treated with 666 unique treatment courses using MRIgRT at our institution between 2014 and 2018. Breast cancer was the most common disease, with use of cine MRI gating being a particularly important indication, followed by abdominal sites, where the need for cine gating and use of ART drove MRIgRT use. One hundred and ninety patients were treated using ART in 1550 fractions, 67.6% (1050) of which were adapted. ART was primarily used in cancers of the abdomen. Over time, breast and gastrointestinal cancers became increasingly dominant for MRIgRT use, hypofractionated treatment courses became more popular, and gastrointestinal cancers became the principal focus of ART. DISCUSSION MRIgRT is widely applicable within the field of radiation oncology and new clinical uses continue to emerge. At our institution to date, applications such as ART for gastrointestinal cancers and accelerated partial breast irradiation (APBI) for breast cancer have become dominant indications, although this is likely to continue to evolve.
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Affiliation(s)
- L E Henke
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - J A Contreras
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - O L Green
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - B Cai
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - H Kim
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - M C Roach
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - J R Olsen
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - B Fischer-Valuck
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - D F Mullen
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - R Kashani
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - M A Thomas
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - J Huang
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - I Zoberi
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - D Yang
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - V Rodriguez
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - J D Bradley
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - C G Robinson
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - P Parikh
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - S Mutic
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - J Michalski
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA.
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17
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Rodriguez V, Klajn D, Molina A, Cagnoni A, Lacerna DR, Bustamante J, Zalazar N. Prevalence of cryptococcal subclinical infection in HIV-infected patients initiating HAART. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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18
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Teper A, Smithuis F, Rodriguez V, Salvaggio O, Macallini G, Micenmacher V, Aranda C, García-Bournissen F. P012 Comparison of 2 strategies of newborn screening (NBS) for cystic fibrosis (CF): IRT/IRT vs. IRT/PAP. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30309-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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19
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Esteve-Arenys A, Valero JG, Chamorro-Jorganes A, Gonzalez D, Rodriguez V, Dlouhy I, Salaverria I, Campo E, Colomer D, Martinez A, Rymkiewicz G, Pérez-Galán P, Lopez-Guillermo A, Roué G. The BET bromodomain inhibitor CPI203 overcomes resistance to ABT-199 (venetoclax) by downregulation of BFL-1/A1 in in vitro and in vivo models of MYC+/BCL2+ double hit lymphoma. Oncogene 2018; 37:1830-1844. [PMID: 29353886 DOI: 10.1038/s41388-017-0111-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 09/16/2017] [Accepted: 10/19/2017] [Indexed: 12/28/2022]
Abstract
High-grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements, mostly known as double-hit lymphoma (DHL), is a rare entity characterized by morphologic and molecular features between Burkitt lymphoma and the clinically manageable diffuse large B-cell lymphoma (DLBCL). DHL patients usually undergo a rapidly progressing clinical course associated with resistance to standard chemo-immunotherapy. As a consequence, the prognosis of this entity is particularly poor with a median overall survival inferior to 1 year. ABT-199 (venetoclax) is a potent and selective small-molecule antagonist of BCL-2 recently approved for the treatment of a specific subtype of lymphoid neoplasm. In this study, we demonstrate that single-agent ABT-199 efficiently displaces BAX from BCL-2 complexes but fails to maintain a significant antitumor activity over time in most MYC+/BCL2+DHL cell lines and primary cultures, as well as in a xenograft mouse model of the disease. We further identify the accumulation of the BCL2-like protein BFL-1 to be a major mechanism involved in acquired resistance to ABT-199. Noteworthy, this phenomenon can be counteracted by the BET bromodomain inhibitor CPI203, since gene expression profiling identifies BCL2A1, the BFL-1 coding gene, as one of the top apoptosis-related gene modulated by this compound. Upon CPI203 treatment, simultaneous downregulation of MYC and BFL-1 further overcomes resistance to ABT-199 both in vitro and in vivo, engaging synergistic caspase-mediated apoptosis in DHL cultures and tumor xenografts. Together, these findings highlight the relevance of BFL-1 in DH lymphoma-associated drug resistance and support the combined use of a BCL-2 antagonist and a BET inhibitor as a promising therapeutic strategy for patients with aggressive DHL.
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Affiliation(s)
- A Esteve-Arenys
- Aggressive B-cell Lymphoma Study Group, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain.,Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - J G Valero
- Aggressive B-cell Lymphoma Study Group, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain.,Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - A Chamorro-Jorganes
- Aggressive B-cell Lymphoma Study Group, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain.,Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - D Gonzalez
- Aggressive B-cell Lymphoma Study Group, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain.,Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - V Rodriguez
- Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - I Dlouhy
- Department of Hematology, Hospital Clinic, Barcelona, Spain
| | - I Salaverria
- Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - E Campo
- Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain.,Hematopathology Unit, Department of Pathology, Hospital Clinic, Barcelona, Spain
| | - D Colomer
- Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain.,Hematopathology Unit, Department of Pathology, Hospital Clinic, Barcelona, Spain
| | - A Martinez
- Hematopathology Unit, Department of Pathology, Hospital Clinic, Barcelona, Spain
| | - G Rymkiewicz
- Department of Pathology, The Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - P Pérez-Galán
- Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - A Lopez-Guillermo
- Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain.,Department of Hematology, Hospital Clinic, Barcelona, Spain
| | - G Roué
- Aggressive B-cell Lymphoma Study Group, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain. .,Division of Hematology and Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain. .,Laboratory of Experimental Hematology, Department of Hematology, Vall d'Hebron Institute of Oncology, Vall d'Hebron University Hospital, Barcelona, Spain.
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Pérez-Galán P, Vidal-Crespo A, Matas-Céspedes A, Rodriguez V, Rossi C, Roué G, López-Guillermo A, Giné E, Campo E, Colomer D, Wiestner A, Bezombes C, Balasubramanian S, Chiu C, Doshi P. ANTI-TUMOR ACTIVITY OF DARATUMUMAB, A NOVEL HUMAN ANTI CD38 MONOCLONAL ANTIBODY, IN IN VITRO
AND IN VIVO
MODELS OF B-CELL NON-HODGKIN LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | - C. Rossi
- Hematology-Oncology; Centre de Recherche en Cancérologie de Toulouse (CRCT); Toulouse France
| | - G. Roué
- Hemato-Oncology; IDIBAPS; Barcelona Spain
| | | | - E. Giné
- Hematology; Hospital Clínic-IDIBAPS; Barcelona Spain
| | - E. Campo
- Hematophathology; Hospital Clínic-IDIBAPS; Barcelona Spain
| | - D. Colomer
- Hematophathology; Hospital Clínic-IDIBAPS; Barcelona Spain
| | - A. Wiestner
- Hematology Branch; National Heart, Lung, and Blood Institute, National Institutes of Health; Bethesda Maryland USA
| | - C. Bezombes
- Hematology-Oncology; Centre de Recherche en Cancérologie de Toulouse (CRCT); Toulouse France
| | | | - C. Chiu
- Oncology; Janssen R&D, Spring House; Pennsylvania USA
| | - P. Doshi
- Oncology; Janssen R&D, Spring House; Pennsylvania USA
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21
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Zaragoza S, Lubovich S, Rodriguez V, Bournissen FG, Galanternik L, Ratto P, Manonelles G, Teper A. 231 Factors associated to low pulmonary function in pediatric cystic fibrosis (CF) patients. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30576-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Galanternik L, Ibarra L, Amaya P, Lubovich S, Bournissen FG, Zaragoza S, Rodriguez V, Vazquez M, Teper A. 132 Emerging pathogens in cystic fibrosis pediatric patients (CF): cross-sectional reports during the last 30 years. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30496-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Perez Botero J, Ho TP, Rodriguez V, Khan SP, Pruthi RK, Patnaik MM. Coagulation abnormalities and haemostatic surgical outcomes in 142 patients with Noonan syndrome. Haemophilia 2017; 23:e237-e240. [DOI: 10.1111/hae.13225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2017] [Indexed: 11/30/2022]
Affiliation(s)
- J. Perez Botero
- Division of Hematology; Department of Medicine; Mayo Clinic; Rochester MN USA
| | - T. P. Ho
- Division of Internal Medicine; Department of Medicine; Mayo Clinic; Rochester MN USA
| | - V. Rodriguez
- Division of Pediatric Hematology and Oncology; Department of Pediatric and Adolescent Medicine; Mayo Clinic; Rochester MN USA
| | - S. P. Khan
- Division of Pediatric Hematology and Oncology; Department of Pediatric and Adolescent Medicine; Mayo Clinic; Rochester MN USA
| | - R. K. Pruthi
- Division of Hematology; Department of Medicine; Mayo Clinic; Rochester MN USA
- Special Coagulation Laboratory; Department of Laboratory Medicine and Pathology; Mayo Clinic; Rochester MN USA
| | - M. M. Patnaik
- Division of Hematology; Department of Medicine; Mayo Clinic; Rochester MN USA
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Gomez C, González L, Anibarro M, Rodriguez V, Ortigosa C, Gomis C. Demographic Characteristics of Personality Disorders in an Emergency Department. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
ObjectiveThe aim of our study is to outline the demographic characteristics of the patients with a diagnosis of personality disorder that come to the ED. A second objective is to find specific risk factor for this type of patients.MethodsWe selected patients that came to the ED with the diagnosis of personality disorder, between October 2015 and February 2016. Data analysis was conducted using SPSS software. Chi2 test and t-Test were used as appropriate. A P-value < 0.05 was considered statistically significant.ResultsSixty-eight of the 402 patients that were attended in the ED met the criteria of personality disorder; 44.92% of these patients presented with suicidal ideation or attempt. We found in the use of drugs, statistically significant differences between men and women, using drugs all the men with a personality disorder that came to the ED except one. The most frequent reason for consult were anxiety, conduct alterations, suicidal ideation, and suicidal attempt, being these consultations the 77%.ConclusionAnxiety and suicide risk are the most common reasons for a personality disorder patient to go to an ED. We have to be even more careful due to the high rate of suicide conducts in these patients. Also, it is important to think of drug use and dual pathology when assessing these patients.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Hartono S, Motosue M, Khan S, Rodriguez V, Divekar R, Joshi A. O014 Splenomegaly and IgA deficiency predicts granulomatous lymphocytic interstitial lung disease (GLILD) in common variable immunodeficiency (CVID). Ann Allergy Asthma Immunol 2016. [DOI: 10.1016/j.anai.2016.09.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lepicard A, Cardinal T, Fargin E, Adamietz F, Rodriguez V, Richardson K, Dussauze M. Micro-structuring the surface reactivity of a borosilicate glass via thermal poling. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.09.077] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Wang Y, Mazur T, Green O, Hu Y, Li H, Rodriguez V, Wooten H, Yang D, Zhao T, Mutic S, Li H. TH-AB-BRA-07: PENELOPE-Based GPU-Accelerated Dose Calculation System Applied to MRI-Guided Radiation Therapy. Med Phys 2016. [DOI: 10.1118/1.4958058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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29
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Michalski J, Green O, Kashani R, Li H, Rodriguez V, Zhao T, Yang D, Bradley J, Zoberi I, Thomas M, Robinson C, Parikh P, Olsen J, Mutic S. SP-0484: First two years clinical experience with low-field MR-IGRT-system practicality and future implications. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31733-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Pedraz P, Casado S, Rodriguez V, Giordano MC, Mongeot FBD, Ayuso-Sacido A, Gnecco E. Adhesion modification of neural stem cells induced by nanoscale ripple patterns. Nanotechnology 2016; 27:125301. [PMID: 26889870 DOI: 10.1088/0957-4484/27/12/125301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We have studied the influence of anisotropic nanopatterns (ripples) on the adhesion and morphology of mouse neural stem cells (C17.2) on glass substrates using cell viability assay, optical microscopy and atomic force microscopy. The ripples were produced by defocused ion beam sputtering with inert Ar ions, which physically remove atoms from the surface at the energy of 800 eV. The ripple periodicity (∼200 nm) is comparable to the thickness of the cytoplasmatic microspikes (filopodia) which link the stem cells to the substrate. All methods show that the cell adhesion is significantly lowered compared to the same type of cells on flat glass surfaces. Furthermore, the AFM analysis reveals that the filopodia tend to be trapped parallel or perpendicular to the ripples, which limits the spreading of the stem cell on the rippled substrate. This opens the perspective of controlling the micro-adhesion of stem cells and the orientation of their filopodia by tuning the anisotropic substrate morphology without chemical reactions occurring at the surface.
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Affiliation(s)
- P Pedraz
- IMDEA Nanociencia, Campus Universitario de Cantoblanco, Calle Faraday 9, E-28049 Madrid, Spain
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González L, Gomis C, Rodriguez V, Gomez C, tercelan E, Ortigosa C, Anibarro M, Garcia L. Manic episode associated with interferon alpha therapy: A case report. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Interferon alpha is a cytokine with antiviral and antineoplastic action, which is commonly used for treatment of Hepatitis C and B, malignant melanoma, Kaposi's sarcoma, kidney cancer and certain hematologic diseases. It is well-known some of its neuropsychiatric symptoms such as depressive symptoms, cognitive impairment, chronic fatigue, dysphoria and anxiety, but there are also other less common like mania, psychotic symptoms and suicide risk that have been reported. These symptoms interfere in the quality of life very significantly, which at the end can affect treatment adherence.We report a case of a 33-year-old man who was taken to the emergency department by his family referring nervousness, irritability, verbose, and insomnia during the last 5 days. The patient had not psychiatric history. He was diagnosed with a malignant melanoma stage III A a year ago which required to start interferon alpha treatment.Patient and family tell that symptoms began after forgetting last interferon dose. In the psychopathology exploration, we could observe mood lability, delusion ideas of prosecution, which includes his entire family and autorreferentiality. In the emergency room the blood test, urine drug test and CT were normal.During the admission, and in collaboration with the Oncology service, it was agreed the reintroduction and maintenance of interferon combined with olanzapine up to 30 mg/day and clonazepam up to 6 mg/day, which resulted in the resolution of symptoms in two weeks.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Rodriguez V, Mancuso ME, Warad D, Hay CRM, DiMichele DM, Valentino L, Kenet G, Kulkarni R. Central venous access device (CVAD) complications in Haemophilia with inhibitors undergoing immune tolerance induction: Lessons from the international immune tolerance study. Haemophilia 2015; 21:e369-74. [PMID: 26178581 DOI: 10.1111/hae.12740] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2015] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Central venous access devices (CVADs) are frequently required as stable long-lasting venous access in children with haemophilia, especially those requiring immune tolerance induction (ITI) for inhibitors. CVAD infection is one of the most frequently reported catheter-related complications in this patient population. AIM Detailed review of CVAD complications from the International ITI (I-ITI) study and analysis of potential risk factors for such complications. METHODS Retrospective analysis of prospectively obtained data from the I-ITI study primarily focused on CVAD-related complications. RESULTS A total of 115 children were recruited and 183 CVADs were placed in 99 subjects resulting in 121,206 CVAD-days observed on-study. A total of 124 CVAD infections were reported in 41 of 99 (41%) subjects with an overall infection rate of 0.94 per 1000 CVAD-days (interquartile ranges 0-1.7). A similar number of infections were observed in the two treatment arms (median: 2 and 3 in high dose and low dose respectively). Infections occurred more frequently in the presence of external catheters than with fully implanted catheters (P = 0.026). Infected patients were significantly younger at the time of CVAD insertion (median age: 22 vs. 25 months, P = 0.020). Patients with Gram-positive infections were also significantly younger than those with Gram-negative infections (median age: 17 vs. 25 months, P < 0.0001). CONCLUSION CVAD infection was the most common complication observed in children with severe haemophilia and inhibitors in the frame of the I-ITI study. Younger age at CVAD insertion and external CVAD were associated with higher risk for infection. ITI outcome was unaffected by CVAD infections.
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Affiliation(s)
- V Rodriguez
- Mayo Clinic Comprehensive Hemophilia Center, Rochester, MN, USA
| | - M E Mancuso
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - D Warad
- Mayo Clinic Comprehensive Hemophilia Center, Rochester, MN, USA
| | - C R M Hay
- Department of Haematology, Manchester University, Manchester Royal Infirmary, Manchester, UK
| | | | - L Valentino
- Rush Hemophilia and Thrombophilia Center, Rush University Medical Center, Chicago, IL, USA
| | - G Kenet
- National Hemophilia Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler Medical School, Tel Aviv University, Tel Hashomer, Israel
| | - R Kulkarni
- MSU Center for Bleeding and Clotting Disorders, Michigan State University, East Lansing, MI, USA
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McClain B, Olsen J, Green O, Yang D, Santanam L, Olsen L, Zhao T, Rodriguez V, Wooten H, Mutic S, Victoria J, Dempsey J, Kashani R. WE-AB-BRA-09: Sensitivity of Plan Re-Optimization to Errors in Deformable Image Registration in Online Adaptive Image-Guided Radiation Therapy. Med Phys 2015. [DOI: 10.1118/1.4925862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chen H, Dolly S, Victoria J, Ruan S, Low D, Anastasio M, Fischer-Valuck B, Kashani R, Green O, Rodriguez V, Dempsey J, Mutic S, Gay H, Thorstad W, Li H. SU-C-210-07: Assessment of Intra-/Inter-Fractional Internal Tumor and Organ Movement in Radiotherapy of Head and Neck Cancer Using On-Board Cine MRI. Med Phys 2015. [DOI: 10.1118/1.4923852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Olsen J, Parikh P, Yang D, Zhao T, Wooten H, Li H, Rodriguez V, Olsen L, Robinson C, Michalski J, Mutic S, Kashani R. OC-0246: Clinical implementation of online MR-guided adaptive radiotherapy for abdominopelvic malignancies. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40244-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Male C, O'Brien S, Rodriguez V, Mitchell LG. Central venous catheter-related thrombosis and thromboprophylaxis in children: a systematic review and meta-analysis: discussion. J Thromb Haemost 2015; 13:688-90. [PMID: 25510522 DOI: 10.1111/jth.12818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 12/11/2014] [Indexed: 10/24/2022]
Affiliation(s)
- C Male
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
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Warad D, Hussain FTN, Rao AN, Cofer SA, Rodriguez V. Haemorrhagic complications with adenotonsillectomy in children and young adults with bleeding disorders. Haemophilia 2015; 21:e151-e155. [PMID: 25581525 DOI: 10.1111/hae.12577] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2014] [Indexed: 11/28/2022]
Abstract
Haemorrhagic complications remain a challenge with surgical procedures in patients with bleeding disorders. In children and young adults, the most commonly performed surgeries are tonsillectomies and/or adenoidectomies. Adequate haemostasis in these patients with bleeding disorders is centred on comprehensive perioperative haemostatic support and dexterous surgical technique. The aim of this study was to assess postoperative bleeding complications with tonsillectomy and/or adenoidectomy in children and young adults with known bleeding disorders. Retrospective review of all patients aged <25 years with known bleeding disorders who underwent tonsillectomy and/or adenoidectomy at Mayo Clinic, Rochester MN between July 1992 and July 2012. In contrast to reported literature, we observed a higher rate of bleeding complications (10/19, 53%) despite aggressive haemostatic support and appropriate surgical techniques. Delayed bleeding (>24 h postoperatively) was more common than early bleeding; and recurrent bleeding was associated with older age. Children and young adults with haemorrhagic diatheses undergoing adenotonsillectomy are at a higher risk of delayed bleeding and require close monitoring with haemostatic support for a prolonged duration in the postoperative period. A uniform approach is needed to manage these patients perioperatively by establishing standard practice guidelines and ultimately reduce postsurgical bleeding complications.
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Affiliation(s)
- D Warad
- Special Coagulation Laboratory, Division of Hematopathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
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Kearney S, Sharathkumar A, Rodriguez V, Chitlur M, Valentino L, Boggio L, Gill J. Neonatal circumcision in severe haemophilia: a survey of paediatric haematologists at United States Hemophilia Treatment Centers. Haemophilia 2014; 21:52-7. [DOI: 10.1111/hae.12528] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2014] [Indexed: 01/20/2023]
Affiliation(s)
- S. Kearney
- Children's Hospitals and Clinics of Minnesota; Pediatric Hematology Oncology; Minneapolis MN USA
| | - A. Sharathkumar
- Lurie Children's Hospital; Pediatric Hematology Oncology; Chicago IL USA
| | - V. Rodriguez
- Mayo Clinic; Pediatric Hematology Oncology; Rochester MN USA
| | - M. Chitlur
- Children's Hospital of Michigan; Pediatric Hematology Oncology; Detroit MI USA
| | - L. Valentino
- Rush University; Pediatric Hematology Oncology; Chicago IL USA
| | - L. Boggio
- Rush University; Pediatric Hematology Oncology; Chicago IL USA
| | - J. Gill
- Children's Hospital of Wisconsin; Pediatric Hematology Oncology; Milwaulkee WI USA
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Rodriguez V, Saurel R, Jourdan G, Houas L. External front instabilities induced by a shocked particle ring. Phys Rev E Stat Nonlin Soft Matter Phys 2014; 90:043013. [PMID: 25375599 DOI: 10.1103/physreve.90.043013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Indexed: 06/04/2023]
Abstract
The dispersion of a cylindrical particle ring by a blast or shock wave induces the formation of coherent structures which take the form of particle jets. A blast wave, issuing from the discharge of a planar shock wave at the exit of a conventional shock tube, is generated in the center of a granular medium ring initially confined inside a Hele-Shaw cell. With the present experimental setup, under impulsive acceleration, a solid particle-jet formation is observed in a quasi-two-dimensional configuration. The aim of the present investigation is to observe in detail the formation of very thin perturbations created around the external surface of the dispersed particle layer. By means of fast flow visualization with an appropriate recording window, we focus solely on the first instants during which the external particle ring becomes unstable. We find that the critical area of the destabilization of the external ring surface is constant regardless of the acceleration of the initial layer. Moreover, we observe in detail the external front perturbation wavelength, rendered dimensionless by the initial ring perimeter, and follow its evolution with the initial particle layer acceleration. We report this quantity to be constant regardless of the evolution of the initial particle layer acceleration. Finally, we can reasonably assert that external front perturbations depend solely on the material of the particles.
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Affiliation(s)
- V Rodriguez
- Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13013 Marseille, France
| | - R Saurel
- Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13013 Marseille, France
| | - G Jourdan
- Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13013 Marseille, France
| | - L Houas
- Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13013 Marseille, France
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Mutic S, Parikh P, Bradley J, Hallahan D, Hu Y, Kashani R, Kawrakow I, Li H, Michalski J, Olsen J, Robinson C, Rodriguez V, Santanam L, Tanderup K, Victoria J, Wooten H, Yang D, Zoberi I, Green O, Dempsey J. The Dawn of a New Era: First Ever MR-IGRT Treatments – Initial Experiences and Future Implications. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.494] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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41
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Green O, Goddu S, Hu Y, Wooten H, Li H, Santanam L, Kashani R, Rodriguez V, Tanderup K, Yang D, Langenegger A, Dempsey J, Mutic S. Validation of the First Clinical On-Board Magnetic Resonance Image Guided Radiation Therapy (MR-IGRT) System. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yang D, li X, Li H, Wooten H, Green O, Rodriguez V, Mutic S. MO-G-BRE-04: Automatic Verification of Daily Treatment Deliveries and Generation of Daily Treatment Reports for a MR Image-Guided Treatment Machine. Med Phys 2014. [DOI: 10.1118/1.4889187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Knutson N, Li H, Rodriguez V, Hu Y, Kashani R, Wooten H, Tanderup K, Mutic S, Green O. SU-E-T-494: A MOSFET-Based In-Vivo Dosimetry System for MR Image-Guided Radiation Therapy (MR-IGRT). Med Phys 2014. [DOI: 10.1118/1.4888827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zhang L, Du D, Green O, Rodriguez V, Wooten H, Xiao Z, Yang D, Hu Y, Li H. TU-C-BRE-04: 3D Gel Dosimetry Using ViewRay On-Board MR Scanner: A Feasibility Study. Med Phys 2014. [DOI: 10.1118/1.4889267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Rodriguez V, Green O, Wooten H, Kashani R, Mutic S, Dempsey J, Li H. SU-E-T-136: Dosimetric Robustness of a Magnetic Resonance Imaging Guided Radiation Therapy (MR-IGRT) System. Med Phys 2014. [DOI: 10.1118/1.4888466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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46
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Li H, Rodriguez V, Green O, Hu Y, Kashani R, Wooten H, Yang D, Mutic S. TH-C-12A-01: Develop a Patient-Specific QA Program for Radiation Therapy with On-Board MRI. Med Phys 2014. [DOI: 10.1118/1.4889638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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47
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Rodriguez V, Li H, Yang D, Kashani R, Wooten H, Dempsey J, Mutic S, Green O. SU-E-T-442: Sensitivity of Quality Assurance Tools to Delivery Errors On a Magnetic Resonance-Imaging Guided Radiation Therapy (MR-IGRT) System. Med Phys 2014. [DOI: 10.1118/1.4888775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Green O, Kashani R, Santanam L, Hand T, Steele C, Victoria J, Wooten H, Li H, Rodriguez V, Hu Y, Mutic S. SU-E-J-181: Magnetic Resonance Image-Guided Radiation Therapy Workflow: Initial Clinical Experience. Med Phys 2014. [DOI: 10.1118/1.4888234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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49
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Wooten H, Green O, Li H, Rodriguez V, Mutic S. WE-G-17A-04: Measurements of the Electron-Return-Effect in a Commercial Magnetic Resonance Image Guided Radiation Therapy (MR-IGRT) System. Med Phys 2014. [DOI: 10.1118/1.4889506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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50
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Rodriguez V, Saurel R, Jourdan G, Houas L. Solid-particle jet formation under shock-wave acceleration. Phys Rev E Stat Nonlin Soft Matter Phys 2013; 88:063011. [PMID: 24483561 DOI: 10.1103/physreve.88.063011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 08/28/2013] [Indexed: 06/03/2023]
Abstract
When solid particles are impulsively dispersed by a shock wave, they develop a spatial distribution which takes the form of particle jets whose selection mechanism is still unidentified. The aim of the present experimental work is to study particle dispersal with fingering effects in an original quasi-two-dimensional experiment facility in order to accurately extract information. Shock and blast waves are generated in the carrier gas at the center of a granular medium ring initially confined inside a Hele-Shaw cell and impulsively accelerated. With the present experimental setup, the particle jet formation is clearly observed. From fast flow visualizations, we notice, in all instances, that the jets are initially generated inside the particle ring and thereafter expelled outward. This point has not been observed in three-dimensional experiments. We highlight that the number of jets is unsteady and decreases with time. For a fixed configuration, considering the very early times following the initial acceleration, the jet size selection is independent of the particle diameter. Moreover, the influence of the initial overpressure and the material density on the particle jet formation have been studied. It is shown that the wave number of particle jets increases with the overpressure and with the decrease of the material density. The normalized number of jets as a function of the initial ring acceleration shows a power law valid for all studied configurations involving various initial pressure ratios, particle sizes, and particle materials.
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Affiliation(s)
- V Rodriguez
- Aix-Marseille Université, IUSTI, UMR CNRS 7343, Marseille, France
| | - R Saurel
- Aix-Marseille Université, IUSTI, UMR CNRS 7343, Marseille, France
| | - G Jourdan
- Aix-Marseille Université, IUSTI, UMR CNRS 7343, Marseille, France
| | - L Houas
- Aix-Marseille Université, IUSTI, UMR CNRS 7343, Marseille, France
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