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Markovinovic A, Herauf M, Quan J, Hracs L, Windsor JW, Sharifi N, Coward S, Caplan L, Gorospe J, Ma C, Panaccione R, Ingram R, Kanji J, Tipples G, Holodinsky J, Berstein C, Mahoney D, Bernatsky S, Benchimol E, Kaplan GG. A170 ADVERSE EVENTS & SEROLOGICAL RESPONSES FOLLOWING SARS-COV-2 VACCINATION IN INDIVIDUALS WITH INFLAMMATORY BOWEL DISEASE. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991202 DOI: 10.1093/jcag/gwac036.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background The rapid development and distribution of SARS-CoV-2 vaccines has raised concerns surrounding vaccine safety in immunocompromised populations, such as those with inflammatory bowel disease (IBD). Purpose We described adverse events (AEs) following SARS-CoV-2 vaccination in those with IBD and determined relationships between AEs to post-vaccination antibody titres. Method Individuals with IBD from a prospective cohort in Calgary, Canada (n=670) who received a 1st, 2nd, 3rd, and/or 4th dose of a SARS-CoV-2 vaccine (Pfizer-BioNTech, Moderna, and/or AstraZeneca) were interviewed via telephone for AEs using the Adverse Events Following Immunization form. Subsequently, we assessed injection site reaction as a specific AE outcome. Multivariable logistic regression models were used to assess the association between anti-SARS-CoV-2 spike protein antibody (anti-S) levels within 1–12 weeks of vaccination and injection site reaction following 1st, 2nd, and 3rd dose vaccination. Models were adjusted for age, sex, IBD type, IBD medications, vaccine type, and prior COVID-19 infection. Additionally, we evaluated the risk of flare of IBD within 30 days of vaccination via chart review. Result(s) Table 1 describes AEs in individuals with IBD following 1st dose (n=331), 2nd dose (n=331), 3rd dose (n=195), and 4th dose (n=100) of a SARS-CoV-2 vaccine. AEs were reported in 83.3% of participants after 1st dose, 79.1% after 2nd dose, 77.4% after 3rd dose, and 67.0% after 4th dose. Injection site reaction (pain, redness, etc.) was the most common AE (50.8% of AEs), with fatigue and malaise (18.1%), headache and migraine (8.6%), musculoskeletal discomfort (8.2%), and fever and chills (6.5%) also commonly reported. Multivariable logistic regression determined no associations between anti-S concentration and injection site reaction for all doses. Age above 65 years was associated with decreased injection site reaction following 1st and 3rd doses, while female sex and mRNA vaccine type were associated with increased injection site reaction following 1st and 2nd doses. Prior COVID-19 infection, IBD type, and medication class were not associated with injection site reaction with any dose. Only one participant was diagnosed with a severe AE requiring hospitalization: Immune thrombocytopenic purpura (ITP) following 2nd dose of a Pfizer vaccination. No cases of IBD flare occurred within 30 days of vaccination. Image ![]()
Conclusion(s) AEs following SARS-CoV-2 vaccination are generally mild and become less common with each consecutive dose. Antibody levels following each dose of the vaccine were not associated with injection site reactions. Females, those under 65 years of age, and those administered mRNA vaccines were more likely to experience an injection site reaction. Prior COVID-19 infection, IBD type, and IBD medication class did not predict injection site reactions. Vaccination was not associated with IBD flare within 30 days of vaccination. Please acknowledge all funding agencies by checking the applicable boxes below Other Please indicate your source of funding; Helmsley Disclosure of Interest A. Markovinovic: None Declared, M. Herauf: None Declared, J. Quan: None Declared, L. Hracs: None Declared, J. Windsor: None Declared, N. Sharifi: None Declared, S. Coward: None Declared, L. Caplan: None Declared, J. Gorospe: None Declared, C. Ma Grant / Research support from: Ferring, Pfizer, , Consultant of: AbbVie, Alimentiv, Amgen, Ferring, Pfizer, Takeda, , Speakers bureau of: AbbVie, Alimentiv, Amgen, Ferring, Pfizer, Takeda, R. Panaccione Grant / Research support from: AbbVie, Ferring, Janssen, Pfizer, Takeda, Consultant of: Abbott, AbbVie, Alimentiv, Amgen, Arena, AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Celltrion, Cosmos Pharmaceuticals, Eisai, Elan, Eli Lilly, Ferring, Galapagos, Genentech, Gilead Sciences, GlaxoSmithKline, Janssen, Merck, Mylan, Oppilan Pharma, Pandion Therapeutics, Pandion Pharma, Pfizer, Progenity, Protagonist, Roche, Sandoz, Satisfai Health, Schering-Plough, Shire, Sublimity Therapeutics, Takeda, Theravance, UCB, Speakers bureau of: AbbVie, Arena, Celgene, Eli Lilly, Ferring, Gilead Sciences, Janssen, Merck, Pfizer, Roche, Sandoz, Shire, Takeda, R. Ingram: None Declared, J. Kanji: None Declared, G. Tipples: None Declared, J. Holodinsky: None Declared, C. Berstein Grant / Research support from: AbbVie, Amgen, Janssen, Pfizer, Takeda, Speakers bureau of: AbbVie, Janssen, Pfizer, Takeda, D. Mahoney: None Declared, S. Bernatsky: None Declared, E. Benchimol: None Declared, G. Kaplan Grant / Research support from: Ferring, Speakers bureau of: AbbVie, Janssen, Pfizer
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Affiliation(s)
| | | | - J Quan
- University of Calgary, Calgary
| | - L Hracs
- University of Calgary, Calgary
| | | | | | | | | | | | - C Ma
- University of Calgary, Calgary
| | | | | | - J Kanji
- University of Calgary, Calgary
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Clark D, Joannides A, Adeleye AO, Bajamal AH, Bashford T, Biluts H, Budohoski K, Ercole A, Fernández-Méndez R, Figaji A, Gupta DK, Härtl R, Iaccarino C, Khan T, Laeke T, Rubiano A, Shabani HK, Sichizya K, Tewari M, Tirsit A, Thu M, Tripathi M, Trivedi R, Devi BI, Servadei F, Menon D, Kolias A, Hutchinson P, Abdallah OI, Abdel-Lateef A, Abdifatah K, Abdullateef A, Abeygunaratne R, Aboellil M, Adam A, Adams R, Adeleye A, Adeolu A, Adji NK, Afianti N, Agarwal S, Aghadi IK, Aguilar PMM, Ahmad SR, Ahmed D, Ahmed N, Aizaz H, Aji YK, Alamri A, Alberto AJM, Alcocer LA, Alfaro LG, Al-Habib A, Alhourani A, Ali SMR, Alkherayf F, AlMenabbawy A, Alshareef A, Aminullah MAS, Amjad M, Amorim RLOD, Anbazhagan S, Andrade A, Antar W, Anyomih TT, Aoun S, Apriawan T, Armocida D, Arnold P, Arraez M, Assefa T, Asser A, Athiththan S, Attanayake D, Aung MM, Avi A, Ayala VEA, Azab M, Azam G, Azharuddin M, Badejo O, Badran M, Baig AA, Baig RA, Bajaj A, Baker P, Bala R, Balasa A, Balchin R, Balogun J, Ban VS, Bandi BKR, Bandyopadhyay S, Bank M, Barthelemy E, Bashir MT, Basso LS, Basu S, Batista A, Bauer M, Bavishi D, Beane A, Bejell S, Belachew A, Belli A, Belouaer A, Bendahane NEA, Benjamin O, Benslimane Y, Benyaiche C, Bernucci C, Berra LV, Bhebe A, Bimpis A, Blanaru D, Bonfim JC, Borba LAB, Borcek AO, Borotto E, Bouhuwaish AEM, Bourilhon F, Brachini G, Breedon J, Broger M, Brunetto GMF, Bruzzaniti P, Budohoska N, Burhan H, Calatroni ML, Camargo C, Cappai PF, Cardali SM, Castaño-Leon AM, Cederberg D, Celaya M, Cenzato M, Challa LM, Charest D, Chaurasia B, Chenna R, Cherian I, Ching'o JH, Chotai T, Choudhary A, Choudhary N, Choumin F, Cigic T, Ciro J, Conti C, Corrêa ACDS, Cossu G, Couto MP, Cruz A, D'Silva D, D'Aliberti GA, Dampha L, Daniel RT, Dapaah A, Darbar A, Dascalu G, Dauda HA, Davies O, Delgado-Babiano A, Dengl M, Despotovic M, Devi I, Dias C, Dirar M, Dissanayake M, Djimbaye H, Dockrell S, Dolachee A, Dolgopolova J, Dolgun M, Dow A, Drusiani D, Dugan A, Duong DT, Duong TK, Dziedzic T, Ebrahim A, El Fatemi N, El Helou AE, El Maaqili RE, El Mostarchid BE, El Ouahabi AE, Elbaroody M, El-Fiki A, El-Garci A, El-Ghandour NM, Elhadi M, Elleder V, Elrais S, El-shazly M, Elshenawy M, Elshitany H, El-Sobky O, Emhamed M, Enicker B, Erdogan O, Ertl S, Esene I, Espinosa OO, Fadalla T, Fadelalla M, Faleiro RM, Fatima N, Fawaz C, Fentaw A, Fernandez CE, Ferreira A, Ferri F, Figaji T, Filho ELB, Fin L, Fisher B, Fitra F, Flores AP, Florian IS, Fontana V, Ford L, Fountain D, Frade JMR, Fratto A, Freyschlag C, Gabin AS, Gallagher C, Ganau M, Gandia-Gonzalez ML, Garcia A, Garcia BH, Garusinghe S, Gebreegziabher B, Gelb A, George JS, Germanò AF, Ghetti I, Ghimire P, Giammarusti A, Gil JL, Gkolia P, Godebo Y, Gollapudi PR, Golubovic J, Gomes JF, Gonzales J, Gormley W, Gots A, Gribaudi GL, Griswold D, Gritti P, Grobler R, Gunawan R, Hailemichael B, Hakkou E, Haley M, Hamdan A, Hammed A, Hamouda W, Hamzah NA, Han NL, Hanalioglu S, Haniffa R, Hanko M, Hanrahan J, Hardcastle T, Hassani FD, Heidecke V, Helseth E, Hernández-Hernández MÁ, Hickman Z, Hoang LMC, Hollinger A, Horakova L, Hossain-Ibrahim K, Hou B, Hoz S, Hsu J, Hunn M, Hussain M, Iacopino G, Ideta MML, Iglesias I, Ilunga A, Imtiaz N, Islam R, Ivashchenko S, Izirouel K, Jabal MS, Jabal S, Jabang JN, Jamjoom A, Jan I, Jarju LBM, Javed S, Jelaca B, Jhawar SS, Jiang TT, Jimenez F, Jiris J, Jithoo R, Johnson W, Joseph M, Joshi R, Junttila E, Jusabani M, Kache SA, Kadali SP, Kalkmann GF, Kamboh U, Kandel H, Karakus AK, Kassa M, Katila A, Kato Y, Keba M, Kehoe K, Kertmen HH, Khafaji S, Khajanchi M, Khan M, Khan MM, Khan SD, Khizar A, Khriesh A, Kierońska S, Kisanga P, Kivevele B, Koczyk K, Koerling AL, Koffenberger D, Kõiv K, Kõiv L, Kolarovszki B, König M, Könü-Leblebicioglu D, Koppala SD, Korhonen T, Kostkiewicz B, Kostyra K, Kotakadira S, Kotha AR, Kottakki MNR, Krajcinovic N, Krakowiak M, Kramer A, Krishnamoorthy S, Kumar A, Kumar P, Kumar P, Kumarasinghe N, Kuncha G, Kutty RK, Laeke T, Lafta G, Lammy S, Lapolla P, Lardani J, Lasica N, Lastrucci G, Launey Y, Lavalle L, Lawrence T, Lazaro A, Lebed V, Leinonen V, Lemeri L, Levi L, Lim JY, Lim XY, Linares-Torres J, Lippa L, Lisboa L, Liu J, Liu Z, Lo WB, Lodin J, Loi F, Londono D, Lopez PAG, López CB, Lotbiniere-Bassett MD, Lulens R, Luna FH, Luoto T, M.V. VS, Mabovula N, MacAllister M, Macie AA, Maduri R, Mahfoud M, Mahmood A, Mahmoud F, Mahoney D, Makhlouf W, Malcolm G, Malomo A, Malomo T, Mani MK, Marçal TG, Marchello J, Marchesini N, Marhold F, Marklund N, Martín-Láez R, Mathaneswaran V, Mato-Mañas DJ, Maye H, McLean AL, McMahon C, Mediratta S, Mehboob M, Meneses A, Mentri N, Mersha H, Mesa AM, Meyer C, Millward C, Mimbir SA, Mingoli A, Mishra P, Mishra T, Misra B, Mittal S, Mohammed I, Moldovan I, Molefe M, Moles A, Moodley P, Morales MAN, Morgan L, Morillo GDC, Moustafa W, Moustakis N, Mrichi S, Munjal SS, Muntaka AJM, Naicker D, Nakashima PEH, Nandigama PK, Nash S, Negoi I, Negoita V, Neupane S, Nguyen MH, Niantiarno FH, Noble A, Nor MAM, Nowak B, Oancea A, O'Brien F, Okere O, Olaya S, Oliveira L, Oliveira LM, Omar F, Ononeme O, Opšenák R, Orlandini S, Osama A, Osei-Poku D, Osman H, Otero A, Ottenhausen M, Otzri S, Outani O, Owusu EA, Owusu-Agyemang K, Ozair A, Ozoner B, Paal E, Paiva MS, Paiva W, Pandey S, Pansini G, Pansini L, Pantel T, Pantelas N, Papadopoulos K, Papic V, Park K, Park N, Paschoal EHA, Paschoalino MCDO, Pathi R, Peethambaran A, Pereira TA, Perez IP, Pérez CJP, Periyasamy T, Peron S, Phillips M, Picazo SS, Pinar E, Pinggera D, Piper R, Pirakash P, Popadic B, Posti JP, Prabhakar RB, Pradeepan S, Prasad M, Prieto PC, Prince R, Prontera A, Provaznikova E, Quadros D, Quintero NJR, Qureshi M, Rabiel H, Rada G, Ragavan S, Rahman J, Ramadhan O, Ramaswamy P, Rashid S, Rathugamage J, Rätsep T, Rauhala M, Raza A, Reddycherla NR, Reen L, Refaat M, Regli L, Ren H, Ria A, Ribeiro TF, Ricci A, Richterová R, Ringel F, Robertson F, Rocha CMSC, Rogério JDS, Romano AA, Rothemeyer S, Rousseau GRG, Roza R, Rueda KDF, Ruiz R, Rundgren M, Rzeplinski R, S.Chandran R, Sadayandi RA, Sage W, Sagerer ANJ, Sakar M, Salami M, Sale D, Saleh Y, Sánchez-Viguera C, Sandila S, Sanli AM, Santi L, Santoro A, Santos AKDD, Santos SCD, Sanz B, Sapkota S, Sasidharan G, Sasillo I, Satoskar R, Sayar AC, Sayee V, Scheichel F, Schiavo FL, Schupper A, Schwarz A, Scott T, Seeberger E, Segundo CNC, Seidu AS, Selfa A, Selmi NH, Selvarajah C, Şengel N, Seule M, Severo L, Shah P, Shahzad M, Shangase T, Sharma M, Shiban E, Shimber E, Shokunbi T, Siddiqui K, Sieg E, Siegemund M, Sikder SR, Silva ACV, Silva A, Silva PA, Singh D, Skadden C, Skola J, Skouteli E, Słoniewski P, Smith B, Solanki G, Solla DF, Solla D, Sonmez O, Sönmez M, Soon WC, Stefini R, Stienen MN, Stoica B, Stovell M, Suarez MN, Sulaiman A, Suliman M, Sulistyanto A, Sulubulut Ş, Sungailaite S, Surbeck M, Szmuda T, Taddei G, Tadele A, Taher ASA, Takala R, Talari KM, Tan BH, Tariciotti L, Tarmohamed M, Taroua O, Tatti E, Tenovuo O, Tetri S, Thakkar P, Thango N, Thatikonda SK, Thesleff T, Thomé C, Thornton O, Timmons S, Timoteo EE, Tingate C, Tliba S, Tolias C, Toman E, Torres I, Torres L, Touissi Y, Touray M, Tropeano MP, Tsermoulas G, Tsitsipanis C, Turkoglu ME, Uçkun ÖM, Ullman J, Ungureanu G, Urasa S, Ur-Rehman O, Uysal M, Vakis A, Valeinis E, Valluru V, Vannoy D, Vargas P, Varotsis P, Varshney R, Vats A, Veljanoski D, Venturini S, Verma A, Villa C, Villa G, Villar S, Villard E, Viruez A, Voglis S, Vulekovic P, Wadanamby S, Wagner K, Walshe R, Walter J, Waseem M, Whitworth T, Wijeyekoon R, Williams A, Wilson M, Win S, Winarso AWW, Ximenes AWP, Yadav A, Yadav D, Yakoub KM, Yalcinkaya A, Yan G, Yaqoob E, Yepes C, Yılmaz AN, Yishak B, Yousuf FB, Zahari MZ, Zakaria H, Zambonin D, Zavatto L, Zebian B, Zeitlberger AM, Zhang F, Zheng F, Ziga M. Casemix, management, and mortality of patients rreseceiving emergency neurosurgery for traumatic brain injury in the Global Neurotrauma Outcomes Study: a prospective observational cohort study. Lancet Neurol 2022; 21:438-449. [PMID: 35305318 DOI: 10.1016/s1474-4422(22)00037-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/19/2021] [Accepted: 01/17/2022] [Indexed: 12/17/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) is increasingly recognised as being responsible for a substantial proportion of the global burden of disease. Neurosurgical interventions are an important aspect of care for patients with TBI, but there is little epidemiological data available on this patient population. We aimed to characterise differences in casemix, management, and mortality of patients receiving emergency neurosurgery for TBI across different levels of human development. METHODS We did a prospective observational cohort study of consecutive patients with TBI undergoing emergency neurosurgery, in a convenience sample of hospitals identified by open invitation, through international and regional scientific societies and meetings, individual contacts, and social media. Patients receiving emergency neurosurgery for TBI in each hospital's 30-day study period were all eligible for inclusion, with the exception of patients undergoing insertion of an intracranial pressure monitor only, ventriculostomy placement only, or a procedure for drainage of a chronic subdural haematoma. The primary outcome was mortality at 14 days postoperatively (or last point of observation if the patient was discharged before this time point). Countries were stratified according to their Human Development Index (HDI)-a composite of life expectancy, education, and income measures-into very high HDI, high HDI, medium HDI, and low HDI tiers. Mixed effects logistic regression was used to examine the effect of HDI on mortality while accounting for and quantifying between-hospital and between-country variation. FINDINGS Our study included 1635 records from 159 hospitals in 57 countries, collected between Nov 1, 2018, and Jan 31, 2020. 328 (20%) records were from countries in the very high HDI tier, 539 (33%) from countries in the high HDI tier, 614 (38%) from countries in the medium HDI tier, and 154 (9%) from countries in the low HDI tier. The median age was 35 years (IQR 24-51), with the oldest patients in the very high HDI tier (median 54 years, IQR 34-69) and the youngest in the low HDI tier (median 28 years, IQR 20-38). The most common procedures were elevation of a depressed skull fracture in the low HDI tier (69 [45%]), evacuation of a supratentorial extradural haematoma in the medium HDI tier (189 [31%]) and high HDI tier (173 [32%]), and evacuation of a supratentorial acute subdural haematoma in the very high HDI tier (155 [47%]). Median time from injury to surgery was 13 h (IQR 6-32). Overall mortality was 18% (299 of 1635). After adjustment for casemix, the odds of mortality were greater in the medium HDI tier (odds ratio [OR] 2·84, 95% CI 1·55-5·2) and high HDI tier (2·26, 1·23-4·15), but not the low HDI tier (1·66, 0·61-4·46), relative to the very high HDI tier. There was significant between-hospital variation in mortality (median OR 2·04, 95% CI 1·17-2·49). INTERPRETATION Patients receiving emergency neurosurgery for TBI differed considerably in their admission characteristics and management across human development settings. Level of human development was associated with mortality. Substantial opportunities to improve care globally were identified, including reducing delays to surgery. Between-hospital variation in mortality suggests changes at an institutional level could influence outcome and comparative effectiveness research could identify best practices. FUNDING National Institute for Health Research Global Health Research Group.
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Affiliation(s)
- David Clark
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK; Neurosurgery Division, University Teaching Hospital, Lusaka, Zambia.
| | - Alexis Joannides
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Amos Olufemi Adeleye
- Department of Surgery, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Abdul Hafid Bajamal
- Department of Neurosurgery, Dr Soetomo Hospital, Surabaya, Jawa Timur, Indonesia
| | - Tom Bashford
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Hagos Biluts
- Neurosurgery Unit, Department of Surgery, College of Health Sciences, Addis Ababa University, Addis Ababa, Oromia, Ethiopia
| | - Karol Budohoski
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Ari Ercole
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Rocío Fernández-Méndez
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Anthony Figaji
- Division of Neurosurgery and Neurosciences Institute, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Deepak Kumar Gupta
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Roger Härtl
- Department of Neurological Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Corrado Iaccarino
- Neurosurgery Division, University Hospital of Parma, Parma, Emilia-Romagna, Italy
| | - Tariq Khan
- Department of Neurosurgery, North West General Hospital & Research Center, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Tsegazeab Laeke
- Neurosurgery Unit, Department of Surgery, College of Health Sciences, Addis Ababa University, Addis Ababa, Oromia, Ethiopia
| | - Andrés Rubiano
- Department of Neurosurgery, Universidad El Bosque, Bogota, Colombia
| | - Hamisi K Shabani
- Department of Neurological Surgery, Muhimbili Orthopaedic Institute and Muhimbili University College of Allied Health Sciences, Dar es Salaam, Tanzania
| | | | - Manoj Tewari
- Department of Neurosurgery, Post Graduate Institute of Medical Education and Research Chandigarh, Chandigarh, India
| | - Abenezer Tirsit
- Neurosurgery Unit, Department of Surgery, College of Health Sciences, Addis Ababa University, Addis Ababa, Oromia, Ethiopia
| | - Myat Thu
- Department of Neurosurgery, Yangon General Hospital, Yangon, Yangon Region, Myanmar
| | - Manjul Tripathi
- Department of Neurosurgery, Post Graduate Institute of Medical Education and Research Chandigarh, Chandigarh, India
| | - Rikin Trivedi
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Bhagavatula Indira Devi
- Department of Neurosurgery, National Institute of Mental Health & Neurosciences, Bangalore, India
| | - Franco Servadei
- Humanitas Clinical and Research Center-IRCCS and Department of Biomedical Sciences, Humanitas University, Milano, Italy
| | - David Menon
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Angelos Kolias
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
| | - Peter Hutchinson
- National Institute of Health Research Global Health Research Group on Neurotrauma, University of Cambridge, Cambridge, UK
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Hoz SS, Aktham AA, Al-Sharshahi ZF, Esene IN, Mahoney D, Chaurasia B, Radwan SE, Dolachee AA, Abdulazeez MM, Ramadan AHA, Moscote-Salazar LR, Sadik H. The most recommended neuroanatomy resources for neurosurgeons: an international survey. Surg Neurol Int 2021; 12:11. [PMID: 33500826 PMCID: PMC7827437 DOI: 10.25259/sni_501_2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/08/2020] [Accepted: 11/27/2020] [Indexed: 11/11/2022] Open
Abstract
Background: Neuroanatomy is the core basis for neurosurgical excellence. The quantity of accessible neuroanatomy resources has witnessed exponential growth in recent years. Accumulating a list of popular sources and getting them ranked by neurosurgeons was the motivation behind this investigation. Methods: A list of neuroanatomy resources was compiled using Google search wherein multiple sets of variable combinations of keywords were used. A three-section, eleven-item questionnaire was designed by two neurosurgeons and revised by a third independent reviewer. Neurosurgeons from different parts of the world were invited to participate. The participants were asked to rank the neuroanatomy textbook and non-book online source that they would recommend to neurosurgeons and the features that make a textbook appealing to them. Results: A total of 250 neurosurgeons at different levels of training responded to our questionnaire. Overall, “Rhoton’s Cranial Anatomy and Surgical Approach: Albert L. Rhoton Jr., Doctor of Medicine” was the most commonly chosen textbook that the neurosurgeons would use to revise neuroanatomy (86.0%; n = 215), recommend for residents (80.8%; n = 202) and recommend for certified surgeons (Continuing Medical Education (59.8%; n = 150), where applicable. “Illustrations” was rated as the most important neuroanatomy textbook quality by 53% (n = 134). “Rhoton collection” was the most popular online source (65.7%; n = 164.25). Chi-square tests showed no association between years of experience and the textbooks neurosurgeons recommended. Conclusion: Based on our study Rhoton’s book and his online collection are the leading neuroanatomy resources, recommended by neurosurgeons for neurosurgeons worldwide. The other selected resources can be implemented as a complementary part of a comprehensive neuroanatomy teaching curriculum. Knowing the relevance of these assets from a neurosurgeon’s perspective is valuable in directing future educational plan updates and recommendations.
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Affiliation(s)
- Samer S Hoz
- Department of Neurosurgery, Neurosurgery Teaching Hospital, Baghdad, Iraq
| | - Awfa A Aktham
- Department of Neurosurgery, Neurosurgery Teaching Hospital, Baghdad, Iraq
| | | | - Ignatius N Esene
- Department of Neurosurgery, Faculty of Health Sciences, University of Bamenda, Cameroon
| | - Dominic Mahoney
- Medical Student, University of Bristol, Bristol, United Kingdom
| | | | - Sameh E Radwan
- Department of Neurosurgery, El-Matareya Educational Hospital, Cairo, Egypt
| | - Ali A Dolachee
- Department of Surgery, College of Medicine, University of Al-Qadisiyah, Diwaniyah, Iraq
| | | | - Abdullah H Al Ramadan
- Department of Neurosurgery, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | | | - Hatem Sadik
- Department of Intensive Care, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
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Ivey-Miranda J, Stewart B, Gomez N, Thomas A, Wycallis E, Pattoli M, Struyk G, Fleming J, Shamlian P, Barnett J, Raghavendra P, Mahoney D, Griffin M, Rao V, Testani J. Discordance between Estimate Glomerular Filtration Rate with Creatinine and Cystatin is Associated with Inflammation and Worsened Survival in Heart Failure. J Card Fail 2019. [DOI: 10.1016/j.cardfail.2019.07.057] [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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5
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Barnett J, Stewart B, Gomez N, Thomas A, Wycallis E, Pattoli M, Struyk G, Fleming J, Shamlian P, Raghavendra P, Mahoney D, Ivey-Miranda J, Griffin M, Rao V, Testani J. Urine Growth Differentiation Factor-15 is Not an Independent Biomarker of Cardio-Renal Interactions in Patients with Heart Failure. J Card Fail 2019. [DOI: 10.1016/j.cardfail.2019.07.063] [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: 11/26/2022]
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6
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Griffin M, Flemming J, Pattoli M, Stewart B, Gomez N, Barnett J, Thomas A, Wycallis E, Struyk G, Shamlian P, Mahoney D, Ivey-Miranda J, Ivey-Miranda J, Rao V, Testani J. Safety and Efficacy of an Auto-Titrating Diuretic Protocol: A Pilot. J Card Fail 2019. [DOI: 10.1016/j.cardfail.2019.07.147] [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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Ivey-Miranda J, Stewart B, Gomez N, Barnett J, Thomas A, Wycallis E, Pattoli M, Struyk G, Fleming J, Shamlian P, Raghavendra P, Mahoney D, Griffin M, Rao V, Testani J. Sarcopenia Strongly Affects Serum Levels of Cystatin C in Patients with Heart Failure. J Card Fail 2019. [DOI: 10.1016/j.cardfail.2019.07.059] [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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8
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Rao V, Turner J, Mahoney D, Griffin M, Asher J, Ivey-Miranda J, Gomez N, Finkelstein F, Testani J. First in Human Experience with Direct Sodium Removal Using a Zero Sodium Peritoneal Solution. J Card Fail 2019. [DOI: 10.1016/j.cardfail.2019.07.027] [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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Stewart B, Gomez N, Barnett J, Thomas A, Wycallis E, Pattoli M, Struyk G, Fleming J, Shamlian P, Raghavendra P, Mahoney D, Ivey-Miranda J, Griffin M, Rao V, Testani J. FGF-23 and Cardio-Renal Interactions in Heart Failure. J Card Fail 2019. [DOI: 10.1016/j.cardfail.2019.07.545] [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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Affiliation(s)
- D Mahoney
- MGH Institute of Health Professions, School of Nursing
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Preusse C, Gammill H, Ma K, Li C, McDougall J, Mahoney D, Gadi V. PO40 Reproductive health decisions following breast cancer diagnosis. Breast 2014. [DOI: 10.1016/s0960-9776(14)70050-5] [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] Open
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Francis JC, Hui SK, Mahoney D, Dietrich JE, Friedman KD, Soundar E, Srivaths LV. Diagnostic challenges in patients with bleeding phenotype and von Willebrand exon 28 polymorphism p.D1472H. Haemophilia 2014; 20:e211-4. [PMID: 24581275 DOI: 10.1111/hae.12384] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 01/10/2014] [Indexed: 11/28/2022]
Abstract
Exon 28 polymorphism p.D1472H is associated with significantly lower von Willebrand Ristocetin cofactor activity (VWF:RCoF) to von Willebrand antigen (VWF:Ag) ratio compared to normal, but has been reported as not conferring haemorrhagic risk. The impact of this polymorphism while assessing symptomatic patients for von Willebrand disease (VWD) has not been previously analysed. We retrospectively reviewed charts of children with clinically significant bleeding and abnormal VW panel who underwent VW exon 28 analysis. Twenty-three of 63 patients studied had p.D1472H. Of these 23 patients, 6 with borderline low VWF:RCo were given provisional diagnosis of VWD type 1 by treating physicians, which could be alternatively explained as due to the effect of p.D1472H. None of the patients with low VWF:RCo, decreased VWF:RCo/VWF:Ag ratio and p.D1472H had VWD type 2M mutations identified. This study illustrates the challenge in diagnosing VWD using ristocetin-based VW assay in symptomatic patients with p.D1472H.
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Affiliation(s)
- J C Francis
- Division of Pediatric and Adolescent Gynecology, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA; Department of Pathology, Baylor College of Medicine, Houston, TX, USA; Baylor College of Medicine, Houston, TX, USA
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Caiani E, Pellegrini A, Carminati M, Lang R, Auricchio A, Vaida P, Obase K, Sakakura T, Komeda M, Okura H, Yoshida K, Zeppellini R, Noni M, Rigo T, Erente G, Carasi M, Costa A, Ramondo B, Thorell L, Akesson-Lindow T, Shahgaldi K, Germanakis I, Fotaki A, Peppes S, Sifakis S, Parthenakis F, Makrigiannakis A, Richter U, Sveric K, Forkmann M, Wunderlich C, Strasser R, Djikic D, Potpara T, Polovina M, Marcetic Z, Peric V, Ostenfeld E, Werther-Evaldsson A, Engblom H, Ingvarsson A, Roijer A, Meurling C, Holm J, Radegran G, Carlsson M, Tabuchi H, Yamanaka T, Katahira Y, Tanaka M, Kurokawa T, Nakajima H, Ohtsuki S, Saijo Y, Yambe T, D'alto M, Romeo E, Argiento P, D'andrea A, Vanderpool R, Correra A, Sarubbi B, Calabro' R, Russo M, Naeije R, Saha SK, Warsame TA, Caelian AG, Malicse M, Kiotsekoglou A, Omran AS, Sharif D, Sharif-Rasslan A, Shahla C, Khalil A, Rosenschein U, Erturk M, Oner E, Kalkan A, Pusuroglu H, Ozyilmaz S, Akgul O, Aksu H, Akturk F, Celik O, Uslu N, Bandera F, Pellegrino M, Generati G, Donghi V, Alfonzetti E, Guazzi M, Rangel I, Goncalves A, Sousa C, Correia A, Martins E, Silva-Cardoso J, Macedo F, Maciel M, Lee S, Kim W, Yun H, Jung L, Kim E, Ko J, Enescu O, Florescu M, Rimbas R, Cinteza M, Vinereanu D, Kosmala W, Rojek A, Cielecka-Prynda M, Laczmanski L, Mysiak A, Przewlocka-Kosmala M, Liu D, Hu K, Niemann M, Herrmann S, Cikes M, Gaudron P, Knop S, Ertl G, Bijnens B, Weidemann F, Saravi M, Tamadoni A, Jalalian R, Hojati M, Ramezani S, Yildiz A, Inci U, Bilik M, Yuksel M, Oyumlu M, Kayan F, Ozaydogdu N, Aydin M, Akil M, Tekbas E, Shang Q, Zhang Q, Fang F, Wang S, Li R, Lee AP, Yu C, Mornos C, Ionac A, Cozma D, Popescu I, Ionescu G, Dan R, Petrescu L, Sawant A, Srivatsa S, Adhikari P, Mills P, Srivatsa S, Boshchenko A, Vrublevsky A, Karpov R, Trifunovic D, Stankovic S, Vujisic-Tesic B, Petrovic M, Nedeljkovic I, Banovic M, Tesic M, Petrovic M, Dragovic M, Ostojic M, Zencirci E, Esen Zencirci A, Degirmencioglu A, Karakus G, Ekmekci A, Erdem A, Ozden K, Erer H, Akyol A, Eren M, Zamfir D, Tautu O, Onciul S, Marinescu C, Onut R, Comanescu I, Oprescu N, Iancovici S, Dorobantu M, Melao F, Pereira M, Ribeiro V, Oliveira S, Araujo C, Subirana I, Marrugat J, Dias P, Azevedo A, Grillo MT, Piamonti B, Abate E, Porto A, Dell'angela L, Gatti G, Poletti A, Pappalardo A, Sinagra G, Pinto-Teixeira P, Galrinho A, Branco L, Fiarresga A, Sousa L, Cacela D, Portugal G, Rio P, Abreu J, Ferreira R, Fadel B, Abdullah N, Al-Admawi M, Pergola V, Bech-Hanssen O, Di Salvo G, Tigen MK, Pala S, Karaahmet T, Dundar C, Bulut M, Izgi A, Esen AM, Kirma C, Boerlage-Van Dijk K, Yamawaki M, Wiegerinck E, Meregalli P, Bindraban N, Vis M, Koch K, Piek J, Bouma B, Baan J, Mizia M, Sikora-Puz A, Gieszczyk-Strozik K, Lasota B, Chmiel A, Chudek J, Jasinski M, Deja M, Mizia-Stec K, Silva Fazendas Adame PR, Caldeira D, Stuart B, Almeida S, Cruz I, Ferreira A, Lopes L, Joao I, Cotrim C, Pereira H, Unger P, Dedobbeleer C, Stoupel E, Preumont N, Argacha J, Berkenboom G, Van Camp G, Malev E, Reeva S, Vasina L, Pshepiy A, Korshunova A, Timofeev E, Zemtsovsky E, Jorgensen PG, Jensen J, Fritz-Hansen T, Biering-Sorensen T, Jons C, Olsen N, Henri C, Magne J, Dulgheru R, Laaraibi S, Voilliot D, Kou S, Pierard L, Lancellotti P, Tayyareci Y, Dworakowski R, Kogoj P, Reiken J, Kenny C, Maccarthy P, Wendler O, Monaghan M, Song J, Ha T, Jung Y, Seo M, Choi S, Kim Y, Sun B, Kim D, Kang D, Song J, Le Tourneau T, Topilsky Y, Inamo J, Mahoney D, Suri R, Schaff H, Enriquez-Sarano M, Bonaque Gonzalez J, Sanchez Espino A, Merchan Ortega G, Bolivar Herrera N, Ikuta I, Macancela Quinonez J, Munoz Troyano S, Ferrer Lopez R, Gomez Recio M, Dreyfus J, Cimadevilla C, Brochet E, Himbert D, Iung B, Vahanian A, Messika-Zeitoun D, Izumo M, Takeuchi M, Seo Y, Yamashita E, Suzuki K, Ishizu T, Sato K, Aonuma K, Otsuji Y, Akashi Y, Muraru D, Addetia K, Veronesi F, Corsi C, Mor-Avi V, Yamat M, Weinert L, Lang R, Badano L, Minamisawa M, Koyama J, Kozuka A, Motoki H, Izawa A, Tomita T, Miyashita Y, Ikeda U, Florescu C, Niemann M, Liu D, Hu K, Herrmann S, Gaudron P, Scholz F, Stoerk S, Ertl G, Weidemann F, Marchel M, Serafin A, Kochanowski J, Piatkowski R, Madej-Pilarczyk A, Filipiak K, Hausmanowa-Petrusewicz I, Opolski G, Meimoun P, M'barek D, Clerc J, Neikova A, Elmkies F, Tzvetkov B, Luycx-Bore A, Cardoso C, Zemir H, Mansencal N, Arslan M, El Mahmoud R, Pilliere R, Dubourg O, Ikonomidis I, Lambadiari V, Pavlidis G, Koukoulis C, Kousathana F, Varoudi M, Tritakis V, Triantafyllidi H, Dimitriadis G, Lekakis I, Kovacs A, Kosztin A, Solymossy K, Celeng C, Apor A, Faludi M, Berta K, Szeplaki G, Foldes G, Merkely B, Kimura K, Daimon M, Nakajima T, Motoyoshi Y, Komori T, Nakao T, Kawata T, Uno K, Takenaka K, Komuro I, Gabric ID, Vazdar L, Pintaric H, Planinc D, Vinter O, Trbusic M, Bulj N, Nobre Menezes M, Silva Marques J, Magalhaes R, Carvalho V, Costa P, Brito D, Almeida A, Nunes-Diogo A, Davidsen ES, Bergerot C, Ernande L, Barthelet M, Thivolet S, Decker-Bellaton A, Altman M, Thibault H, Moulin P, Derumeaux G, Huttin O, Voilliot D, Frikha Z, Aliot E, Venner C, Juilliere Y, Selton-Suty C, Yamada T, Ooshima M, Hayashi H, Okabe S, Johno H, Murata H, Charalampopoulos A, Tzoulaki I, Howard L, Davies R, Gin-Sing W, Grapsa J, Wilkins M, Gibbs J, Castillo J, Bandeira A, Albuquerque E, Silveira C, Pyankov V, Chuyasova Y, Lichodziejewska B, Goliszek S, Kurnicka K, Dzikowska Diduch O, Kostrubiec M, Krupa M, Grudzka K, Ciurzynski M, Palczewski P, Pruszczyk P, Arana X, Oria G, Onaindia J, Rodriguez I, Velasco S, Cacicedo A, Palomar S, Subinas A, Zumalde J, Laraudogoitia E, Saeed S, Kokorina M, Fromm A, Oeygarden H, Waje-Andreassen U, Gerdts E, Gomez E, Vallejo N, Pedro-Botet L, Mateu L, Nunyez R, Llobera L, Bayes A, Sabria M, Antonini-Canterin F, Mateescu A, La Carrubba S, Vriz O, Di Bello V, Carerj S, Zito C, Ginghina C, Popescu B, Nicolosi G, Mateescu A, La Carrubba S, Vriz O, Di Bello V, Carerj S, Zito C, Ginghina C, Popescu B, Nicolosi G, Antonini-Canterin F, Pudil R, Praus R, Vasatova M, Vojacek J, Palicka V, Hulek P, Pradel S, Mohty D, Damy T, Echahidi N, Lavergne D, Virot P, Aboyans V, Jaccard A, Mateescu A, La Carrubba S, Vriz O, Di Bello V, Carerj S, Zito C, Ginghina C, Popescu B, Nicolosi G, Antonini-Canterin F, Doulaptsis C, Symons R, Matos A, Florian A, Masci P, Dymarkowski S, Janssens S, Bogaert J, Lestuzzi C, Moreo A, Celik S, Lafaras C, Dequanter D, Tomkowski W, De Biasio M, Cervesato E, Massa L, Imazio M, Watanabe N, Kijima Y, Akagi T, Toh N, Oe H, Nakagawa K, Tanabe Y, Ikeda M, Okada K, Ito H, Milanesi O, Biffanti R, Varotto E, Cerutti A, Reffo E, Castaldi B, Maschietto N, Vida V, Padalino M, Stellin G, Bejiqi R, Retkoceri R, Bejiqi H, Retkoceri A, Surdulli S, Massoure P, Cautela J, Roche N, Chenilleau M, Gil J, Fourcade L, Akhundova A, Cincin A, Sunbul M, Sari I, Tigen M, Basaran Y, Suermeci G, Butz T, Schilling I, Sasko B, Liebeton J, Van Bracht M, Tzikas S, Prull M, Wennemann R, Trappe H, Attenhofer Jost CH, Pfyffer M, Scharf C, Seifert B, Faeh-Gunz A, Naegeli B, Candinas R, Medeiros-Domingo A, Wierzbowska-Drabik K, Roszczyk N, Sobczak M, Plewka M, Krecki R, Kasprzak J, Ikonomidis I, Varoudi M, Papadavid E, Theodoropoulos K, Papadakis I, Pavlidis G, Triantafyllidi H, Anastasiou - Nana M, Rigopoulos D, Lekakis J, Tereshina O, Surkova E, Vachev A, Merchan Ortega G, Bonaque Gonzalez J, Sanchez Espino A, Bolivar Herrera N, Bravo Bustos D, Ikuta I, Aguado Martin M, Navarro Garcia F, Ruiz Lopez F, Gomez Recio M, Merchan Ortega G, Bonaque Gonzalez J, Bravo Bustos D, Sanchez Espino A, Bolivar Herrera N, Bonaque Gonzalez J, Navarro Garcia F, Aguado Martin M, Ruiz Lopez M, Gomez Recio M, Eguchi H, Maruo T, Endo K, Nakamura K, Yokota K, Fuku Y, Yamamoto H, Komiya T, Kadota K, Mitsudo K, Nagy AI, Manouras A, Gunyeli E, Shahgaldi K, Winter R, Hoffmann R, Barletta G, Von Bardeleben S, Kasprzak J, Greis C, Vanoverschelde J, Becher H, Hu K, Liu D, Niemann M, Herrmann S, Cikes M, Gaudron P, Knop S, Ertl G, Bijnens B, Weidemann F, Di Salvo G, Al Bulbul Z, Issa Z, Khan A, Faiz A, Rahmatullah S, Fadel B, Siblini G, Al Fayyadh M, Menting ME, Van Den Bosch A, Mcghie J, Cuypers J, Witsenburg M, Van Dalen B, Geleijnse M, Roos-Hesselink J, Olsen F, Jorgensen P, Mogelvang R, Jensen J, Fritz-Hansen T, Bech J, Biering-Sorensen T, Agoston G, Pap R, Saghy L, Forster T, Varga A, Scandura S, Capodanno D, Dipasqua F, Mangiafico S, Caggegi AM, Grasso C, Pistritto AM, Imme' S, Ministeri M, Tamburino C, Cameli M, Lisi M, D'ascenzi F, Cameli P, Losito M, Sparla S, Lunghetti S, Favilli R, Fineschi M, Mondillo S, Ojaghihaghighi Z, Javani B, Haghjoo M, Moladoust H, Shahrzad S, Ghadrdoust B, Altman M, Aussoleil A, Bergerot C, Bonnefoy-Cudraz E, Derumeaux GA, Thibault H, Shkolnik E, Vasyuk Y, Nesvetov V, Shkolnik L, Varlan G, Gronkova N, Kinova E, Borizanova A, Goudev A, Saracoglu E, Ural D, Sahin T, Al N, Cakmak H, Akbulut T, Akay K, Ural E, Mushtaq S, Andreini D, Pontone G, Bertella E, Conte E, Baggiano A, Annoni A, Formenti A, Fiorentini C, Pepi M, Cosgrove C, Carr L, Chao C, Dahiya A, Prasad S, Younger J, Biering-Sorensen T, Christensen L, Krieger D, Mogelvang R, Jensen J, Hojberg S, Host N, Karlsen F, Christensen H, Medressova A, Abikeyeva L, Dzhetybayeva S, Andossova S, Kuatbayev Y, Bekbossynova M, Bekbossynov S, Pya Y, Farsalinos K, Tsiapras D, Kyrzopoulos S, Spyrou A, Stefopoulos C, Romagna G, Tsimopoulou K, Tsakalou M, Voudris V, Cacicedo A, Velasco Del Castillo S, Anton Ladislao A, Aguirre Larracoechea U, Onaindia Gandarias J, Romero Pereiro A, Arana Achaga X, Zugazabeitia Irazabal G, Laraudogoitia Zaldumbide E, Lekuona Goya I, Varela A, Kotsovilis S, Salagianni M, Andreakos V, Davos C, Merchan Ortega G, Bonaque Gonzalez J, Sanchez Espino A, Bolivar Herrera N, Macancela Quinones J, Ikuta I, Ferrer Lopez R, Munoz Troyano S, Bravo Bustos D, Gomez Recio M. Poster session Friday 13 December - PM: 13/12/2013, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet206] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Mills HL, Abdel-Baki MS, Teruya J, Dietrich JE, Shah MD, Mahoney D, Yee DL, Srivaths LV. Platelet function defects in adolescents with heavy menstrual bleeding. Haemophilia 2013; 20:249-54. [DOI: 10.1111/hae.12293] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2013] [Indexed: 11/30/2022]
Affiliation(s)
- H. L. Mills
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Section of Hematology/Oncology; Department of Pediatrics; Baylor College of Medicine; Houston TX
| | - M. S. Abdel-Baki
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Section of Hematology/Oncology; Department of Pediatrics; Baylor College of Medicine; Houston TX
| | - J. Teruya
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Section of Hematology/Oncology; Department of Pediatrics; Baylor College of Medicine; Houston TX
- Division of Transfusion Medicine; Baylor College of Medicine; Houston TX
| | - J. E. Dietrich
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Department of Obstetrics & Gynecology; Baylor College of Medicine; Houston TX USA
| | - M. D. Shah
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Section of Hematology/Oncology; Department of Pediatrics; Baylor College of Medicine; Houston TX
| | - D. Mahoney
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Section of Hematology/Oncology; Department of Pediatrics; Baylor College of Medicine; Houston TX
| | - D. L. Yee
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Section of Hematology/Oncology; Department of Pediatrics; Baylor College of Medicine; Houston TX
| | - L. V. Srivaths
- Department of Pediatrics; Baylor College of Medicine; Houston TX
- Section of Hematology/Oncology; Department of Pediatrics; Baylor College of Medicine; Houston TX
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Rahman E, Malebranche L, Malodiya A, Dang D, Bathina J, Mahoney D, Hoban A, Kolm P, Weintraub W. In the era of primary PCI, is emergent coronary angiography increasingly necessary to rule out STEMI before a diagnosis of pericarditis can be made. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4484] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Le Tourneau T, Topilsky Y, Inamo J, Mahoney D, Suri R, Schaff H, Enriquez-Sarano M. Time course of left ventricular remodeling after mitral valve surgery in patients with organic mitral regurgitation: effect of volume overload. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.4450] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mohanty B, Dadlani D, Mahoney D, Mann A. Characterizing and Identifying Incipient Carious Lesions in Dental Enamel Using Micro-Raman Spectroscopy. Caries Res 2013; 47:27-33. [DOI: 10.1159/000342432] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 08/06/2012] [Indexed: 11/19/2022] Open
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Kuhle S, Spavor M, Massicotte P, Halton J, Cherrick I, Dix D, Mahoney D, Bauman M, Desai S, Mitchell LG. Prevalence of post-thrombotic syndrome following asymptomatic thrombosis in survivors of acute lymphoblastic leukemia. J Thromb Haemost 2008; 6:589-94. [PMID: 18194413 DOI: 10.1111/j.1538-7836.2008.02901.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Deep vein thrombosis (DVT) is a complication of treatment of acute lymphoblastic leukemia (ALL) in children but little is known about the long-term outcomes of these DVT. OBJECTIVE To determine the incidence of post-thrombotic syndrome (PTS) in (i) children with ALL diagnosed with asymptomatic DVT using radiographic testing and (ii) an unselected group of ALL survivors. METHODS Cross-sectional study in two populations. Group I comprised children in the Prophylactic Antithrombin Replacement in Kids with ALL treated with L-Asparaginase (PARKAA) study diagnosed with DVT by radiographic tests. Group II consisted of non-selected childhood ALL survivors <21 years. PTS was assessed using a standardized scoring sheet. RESULTS Group I: 13 PARKAA patients (median age 12 years) were assessed, and 7 had PTS (54%; 95% CI, 25-81). All patients had collaterals, three also had increased arm circumference. Group II: 41 patients (median age 13 years) with a history of ALL were enrolled, and 10 had PTS (24%; 95% CI, 11-38). All patients had collaterals; five also had increased arm circumference. CONCLUSION There is a high incidence of PTS in survivors of childhood ALL with radiographically diagnosed asymptomatic DVT. A significant proportion of ALL survivors develop PTS, indicating previously undiagnosed DVT.
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Affiliation(s)
- S Kuhle
- Department of Pediatrics, Stollery Children's Hospital, Edmonton, AB, Canada
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Gies J, Zubrow M, Jurkovitz C, Kolm P, Mascioli S, Mahoney D, O’Connor R. 163: Emergency Department Tachypnea Predicts In-Hospital Adverse Outcomes. Ann Emerg Med 2007. [DOI: 10.1016/j.annemergmed.2007.06.196] [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: 10/22/2022]
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Yogeswaren S, Paulino A, Adesina A, Dauser R, Lau C, Mahoney D, Bhatia P, Hilsenbeck S, Woo S, Chintagumpala M. 197. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.229] [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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Tarnopolsky MA, Bourgeois JM, Fu MH, Kataeva G, Shah J, Simon DK, Mahoney D, Johns D, MacKay N, Robinson BH. Novel SCO2 mutation (G1521A) presenting as a spinal muscular atrophy type I phenotype. ACTA ACUST UNITED AC 2004; 125A:310-4. [PMID: 14994243 DOI: 10.1002/ajmg.a.20466] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Rare cases of suspected spinal muscular atrophy (SMA) have been found to have cytochrome c oxidase (COX) deficiency. To date, four cases with SMA features have been reported in children with mutations in the synthesis of cytochrome oxidase 2 (SCO2) gene. We report a male neonate who was born hypotonic, with persistent lactic acidosis, spontaneous activity with EMG testing, development of respiratory distress in the first few hours of life, and died at 30 days of age with progressive cardiomyopathy. Testing for survival motor neurone (smn) and NAIP deletions were negative and a skeletal muscle biopsy showed neurogenic features with severe reductions of COX enzymatic and histochemical staining intensity. Post-mortem muscle, heart, and liver biopsies showed severe, moderate, and mild reductions in COX activity, respectively, with parallel findings in the protein content for the mitochondrial DNA (COII) and nuclear DNA (COIV) encoded subunits. DNA sequencing of exon 2 of the SCO2 gene revealed compound heterozygosity with mutations at G1541A (common mutation, E140K) and also at a novel site in the copper binding region (G1521A in the current case (converting a highly conserved cysteine to tyrosine [corrected] (C133Y) [corrected]); mother heterozygous for G1521A; and father heterozygous for G1541A). This case provides strong support that SCO2 mutations can result in neonatal hypotonia with an SMA 1 phenotype. SCO2 mutations should be screened in suspected SMA cases with normal smn mutation analysis and any one of; cardiomyopathy, lactic acidosis, or COX deficiency in muscle.
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Affiliation(s)
- Mark A Tarnopolsky
- Department of Neurology, McMaster University, Hamilton, Ontario, Canada.
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Varghese S, Newsome JT, Rabkin SD, McGeagh K, Mahoney D, Nielsen P, Todo T, Martuza RL. Preclinical safety evaluation of G207, a replication-competent herpes simplex virus type 1, inoculated intraprostatically in mice and nonhuman primates. Hum Gene Ther 2001; 12:999-1010. [PMID: 11387063 DOI: 10.1089/104303401750195944] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
G207, a replication-competent herpes simplex virus type 1 (HSV-1) virus, has been previously shown to be effective against human prostate cancer xenografts in mice. This study assesses its safety in the prostate of two animal models known for their sensitivity to HSV-1. BALB/c mice were injected intraprostatically with either HSV-1 G207 or strain F and observed for 5 months. None of the G207-injected animals exhibited any clinical signs of disease or died. However, 50% of strain F-injected mice displayed sluggish, hunched behavior and died by day 13. Histopathologically, the G207-injected prostates were normal whereas strain F-injected prostates showed epithelial flattening, sloughing, and stromal edema. Four Aotus nancymae monkeys were also injected with G207 intraprostatically and observed short term (up to 21 days) and long term (56 days). Safety was assessed on the basis of clinical observations, viral biodistribution, virus shedding, and histopathology. None of the injected monkeys displayed evidence of clinical disease, shedding of infectious virus, or spread of the virus into other organs. Except for minor histological changes unrelated to the study, no significant abnormalities were observed. These results demonstrate that G207 can be safely inoculated into the prostate and should be considered for human trials for the treatment of prostate cancer.
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Affiliation(s)
- S Varghese
- Molecular Neurosurgery Laboratory, Department of Surgery (Neurosurgery), Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
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Friedman RH, Stollerman J, Rozenblyum L, Belfer D, Selim A, Mahoney D, Steinbach S. A telecommunications system to manage patients with chronic disease. Stud Health Technol Inform 1999; 52 Pt 2:1330-4. [PMID: 10384677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
The care of patients with chronic disease is a large and growing problem in the United States and other industrialized countries.' it is expensive, and the quality of care received by patients is often sub-optimal, resulting in poor health outcomes. We developed a totally automated computer-controlled telecommunications system, called TLC, that provides--frequent, close monitoring of patients with chronic disease and reports the results to the patients' physicians on a timely basis, so that they can intervene appropriately. TLC also monitors the patients' important self care activities, such as medication-taking, and provides education and counseling to improve the patients' performance of these activities. The system operates through regularly scheduled telephone conversations with patients' in their homes. An evaluation of a TLC chronic disease application for patients with hypertension demonstrated that use of the system was associated with significant improvement of the patients' adherence to their medication regimens and significantly improved blood pressure control. These results show that it is possible to design an information science-based health care delivery system that performs functions usually performed only by health care professionals, and suggests that information science will become an important means of delivering health care services in the next millennium.
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Affiliation(s)
- R H Friedman
- Medical Information Systems Unit, Boston University, USA.
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Mahoney D, Tennstedt S, Friedman R, Heeren T. An automated telephone system for monitoring the functional status of community-residing elders. Gerontologist 1999; 39:229-34. [PMID: 10224719 DOI: 10.1093/geront/39.2.229] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We tested the reliability and validity of an automated telephone monitoring system for assessing changes in the functional status of disabled elders living in the community. The sample consisted of 20 adults older than 60 years of age enrolled in a home care program due to functional disabilities. Within a 72-hour period, each participant received, in random order, two automated and one personal telephone functional assessment as well as a home visit assessment by a case manager. The results indicated similarities between the personal and automated telephone assessments, but neither telephone method captured as many impairments as the case manager's home assessment. These findings suggest that the automated system cannot substitute for a case manager's in-home assessment, but it does offer a means to target individuals for additional professional assessment.
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Affiliation(s)
- D Mahoney
- HRCA Research & Training Institute, Hebrew Rehabilitation Center for Aged, Boston, MA 02131-1097, USA.
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Sandha GS, LeBlanc R, Van Zanten SJ, Sitland TD, Agocs L, Burford N, Best L, Mahoney D, Hoffman P, Leddin DJ. Chemical structure of bismuth compounds determines their gastric ulcer healing efficacy and anti-Helicobacter pylori activity. Dig Dis Sci 1998; 43:2727-32. [PMID: 9881506 DOI: 10.1023/a:1026667714603] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
The recognition of the role of Helicobacter pylori in the pathogenesis of peptic ulcer disease has led to renewed interest in bismuth pharmacology since bismuth compounds have both anti-Helicobacter pylori and ulcer healing properties. The precise chemical structure of current bismuth compounds is not known. This has hindered the development of new and potentially more efficacious formulations. We have created two new compounds, 2-chloro-1,3-dithia-2-bismolane (CDTB) and 1,2-[bis(1,3-dithia-2-bismolane)thio]ethane (BTBT), with known structure. In a rat model of gastric ulceration, BTBT was comparable to, and CDTB was significantly less effective than colloidal bismuth subcitrate in healing cryoprobe-induced ulcers. However, both BTBT and CDTB inhibited H. pylori growth in vitro at concentrations <1/10 that of colloidal bismuth subcitrate. The effects on ulcer healing are not mediated by suppression of acid secretion, pepsin inhibition, or prostaglandin production. Since all treated animals received the same amount of elemental bismuth, it appears that the efficacy of bismuth compounds varies with compound structure and is not simply dependent on the delivery of bismuth ion. Because the structure of the novel compounds is known, our understanding of the relationship of bismuth compound structure and to biologic activity will increase. In the future it may be possible to design other novel bismuth compounds with more potent anti-H. pylori and ulcer healing effects.
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Affiliation(s)
- G S Sandha
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
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Lauer SJ, Camitta BM, Leventhal BG, Mahoney D, Shuster JJ, Kiefer G, Pullen J, Steuber CP, Carroll AJ, Kamen B. Intensive alternating drug pairs after remission induction for treatment of infants with acute lymphoblastic leukemia: A Pediatric Oncology Group Pilot Study. J Pediatr Hematol Oncol 1998; 20:229-33. [PMID: 9628434 DOI: 10.1097/00043426-199805000-00008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Infants with acute lymphoblastic leukemia (ALL) often enter remission; however, they have a high rate of relapse. To prevent relapse, infants' tolerance of and benefits from early intensive rotating drug pairs as part of therapy were studied. METHODS After prednisone, vincristine, asparaginase, and daunorubicin induction, 12 intensive treatments (ABACABACABAC) were administered in 30 weeks: A, intermediate dose methotrexate (MTX) and intermediate dose mercaptopurine (MP); B, cytosine arabinoside (Ara-C) and daunorubicin (DNR); C, Ara-C and teniposide (VM-26). Triple intrathecal chemotherapy (Ara-C, MTX, and hydrocortisone) was administered for central nervous system prophylaxis. Continuation therapy consisted of weekly MTX and daily MP for a total of 130 weeks of continuous complete remission. RESULTS Thirty-three infants (1 year old or younger) with newly diagnosed ALL were treated. Two infants did not respond to induction, 1 died from sepsis during continuation, 1 received a bone marrow transplant, and 24 relapsed. Median time to relapse was 39 weeks. The event-free survival rate at 5 years was 17% (standard error +/- 7.7%). The most significant toxicities occurred during intensification and included fever-neutropenia and bacterial sepsis. CONCLUSION Although early intensive rotating therapy is tolerable, the relapse-free survival rate remains poor for infants treated with the schedule on this protocol.
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Affiliation(s)
- S J Lauer
- Emory University School of Medicine, Department of Pediatrics, Atlanta, Georgia 30322, USA
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Borowitz MJ, Shuster J, Carroll AJ, Nash M, Look AT, Camitta B, Mahoney D, Lauer SJ, Pullen DJ. Prognostic significance of fluorescence intensity of surface marker expression in childhood B-precursor acute lymphoblastic leukemia. A Pediatric Oncology Group Study. Blood 1997; 89:3960-6. [PMID: 9166833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This report describes the prognostic significance of the intensity of surface membrane antigen expression in a series of 1,231 children older than 1 year with newly diagnosed B-precursor acute lymphoblastic leukemia (ALL) treated on Pediatric Oncology Group (POG) treatment protocols. All patients had dual-color flow cytometric immunophenotyping performed at a central reference laboratory with a standard panel of monoclonal antibodies. The flow cytometers used in the study were calibrated with a standard fluorescence microparticle that permitted conversion of relative fluorescence channels to standard units of mean equivalents of soluble fluorochrome (MESF). In univariate analysis, fluorescence intensity of CD45 and CD20 was significantly associated with event-free survival (EFS), whereas other markers showed no significant correlation with outcome. Patients whose blasts were greater than the 75th percentile of intensity for CD45 (corresponding to 18,000 MESF units with CD45-FITC, or about 8% of the intensity of normal lymphocytes) fared significantly worse than those with lower-density CD45, and those whose blasts were greater than the 25th percentile of intensity for CD20 (corresponding to 17,900 MESF units with CD20-PE) had a poorer EFS. The intensity of both CD45 and CD20 was independently correlated with outcome. There was no significant correlation between intensity of expression of either antigen and traditional clinical risk factors, ploidy, or t(9;22) or t(1;19). All patients with t(4;11) had CD45 intensity greater than the 75th percentile, but CD45 intensity retained its prognostic significance after adjusting for t(4;11). In multivariate analysis, both CD45 intensity greater than the 75th percentile and CD20 intensity greater than the 25th percentile were significantly correlated with poor outcome independently of previously reported poor prognostic factors including National Cancer Institute (NCI) risk group, ploidy, trisomies of 4 and 10, and adverse translocations including t(1;19), t(9;22), and t(4;11). We conclude that in childhood B-precursor ALL, the intensity of expression of CD20 and CD45 provides prognostic information not available from simple consideration of antigen expression as positive or negative, and adds to that obtained from traditional clinical and biologic risk factors.
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Affiliation(s)
- M J Borowitz
- Pediatric Oncology Group, Chicago, IL 60611, USA
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Steuber CP, Krischer J, Holbrook T, Camitta B, Land V, Sexauer C, Mahoney D, Weinstein H. Therapy of refractory or recurrent childhood acute myeloid leukemia using amsacrine and etoposide with or without azacitidine: a Pediatric Oncology Group randomized phase II study. J Clin Oncol 1996; 14:1521-5. [PMID: 8622066 DOI: 10.1200/jco.1996.14.5.1521] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
PURPOSE A randomized study compared the combination of amsacrine (100 mg/m2/d on days 1 to 5) and etoposide (200 mg/m2/d on days 1 to 3) with the same two agents plus azacitidine (250 mg/m2/d on days 4 to 50) for the therapy of induction-resistant or relapse childhood acute myeloid leukemia (AML). PATIENTS AND METHODS One hundred sixty-seven assessable children with AML who either had failed to respond to primary induction therapy (group 1, n = 41) or had relapsed (group 2, n = 126) were randomized. RESULTS Overall, there were 56 complete responses (34%; SE 4%). Among primary refractory patients (group 1), the complete response rate was higher with the three-drug regimen (18% vs 53%, P = .03). In the relapsed patients (group 2), there was no difference in complete response rates related to treatment (31% vs 35%, P = .3). There were 17 early deaths. The major toxicities for both regimens were myelosuppression and infection. CONCLUSION The overall complete response rate of 34% in this patient population is indicative of effective antileukemic activity. For patients with relapsed leukemia, the addition of azacitidine to etoposide and amsacrine did not improve response. The suggested advantage of the three-drug regimen for induction failures warrants further investigation.
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Affiliation(s)
- C P Steuber
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
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Mahoney D. "Justifying nurse practitioner existence: hard facts to hard figures". Nurse Pract 1995; 20:8, 10. [PMID: 8587748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Mahoney D. "Justifying nurse practitioner existence: hard facts to hard figures". Nurse Pract 1995; 20:8. [PMID: 8532229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Mahoney D. Gerontological nursing offers new opportunities. Mass Nurse 1994; 64:8-9. [PMID: 7837938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Emick-Herring B, Mahoney D. Traumatic brain injury, pregnancy, and related management: a case study. Ostomy Wound Manage 1994; 40:48-50, 52, 54-5. [PMID: 7546108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Camitta B, Mahoney D, Leventhal B, Lauer SJ, Shuster JJ, Adair S, Civin C, Munoz L, Steuber P, Strother D. Intensive intravenous methotrexate and mercaptopurine treatment of higher-risk non-T, non-B acute lymphocytic leukemia: A Pediatric Oncology Group study. J Clin Oncol 1994; 12:1383-9. [PMID: 8021728 DOI: 10.1200/jco.1994.12.7.1383] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
PURPOSE To determine the potential efficacy and toxicity of intravenous (i.v.) methotrexate (MTX) and mercaptopurine (MP) as postremission intensification treatment for children with B-lineage acute lymphoblastic leukemia (ALL) at higher risk to relapse. PATIENTS AND METHODS Eighty-three patients (age 1 to 20 years) with higher-risk B-lineage ALL were entered onto this protocol. Following standard four-drug remission induction, 80 patients received 12 intensive 2-week cycles of MTX/MP: MTX 200 mg/m2 i.v. push, then 800 mg/m2 i.v. 24-hour infusion on day 1; MP 200 mg/m2 i.v. in 20 minutes, then 800 mg/m2 i.v. 8-hour infusion day 2; MTX 20 mg/m2 intramuscularly day 8; and MP 50 mg/m2 by mouth days 8 to 14. Age-based triple intrathecal therapy (MTX, hydrocortisone, and cytarabine) was administered for CNS prophylaxis. Continuation therapy was weekly MTX/MP (as on days 8 to 14) for 2 years. RESULTS Eighty-one patients (98%) entered remission. There were 28 relapses (marrow, n = 11; marrow and CNS, n = 2; isolated CNS, n = 9; testes, n = 5; ovaries, n = 1). No overt relapse occurred during the intensive phase of therapy. The event-free survival (EFS) rate at 4 years is 57.4% +/- 9.1% (SE). Hematologic, mucosal, and infectious toxicities were seen in 12%, 9%, and 5% of intensive MTX/MP courses, but were generally mild. CONCLUSION Combined data from this and our previous trial suggest that intensive MTX/MP may produce long-term disease-free survival in 70 to 75% of children with B-lineage ALL. In comparison to other intensive regimens, intensive MTX/MP is easy to administer, effective, and relatively nontoxic. If patients at risk for failure of MTX/MP can be identified prospectively, more aggressive regimens could be restricted to this smaller (25% to 30%) cohort.
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Affiliation(s)
- B Camitta
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee
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Whitehead VM, Vuchich MJ, Lauer SJ, Mahoney D, Carroll AJ, Shuster JJ, Esseltine DW, Payment C, Look AT, Akabutu J. Accumulation of high levels of methotrexate polyglutamates in lymphoblasts from children with hyperdiploid (greater than 50 chromosomes) B-lineage acute lymphoblastic leukemia: a Pediatric Oncology Group study. Blood 1992; 80:1316-23. [PMID: 1381244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Hyperdiploidy (greater than 50 chromosomes, or a DNA index greater than 1.16) confers a favorable prognosis in B-lineage acute lymphoblastic leukemia of childhood. Children with B-lineage acute lymphoblastic leukemia whose lymphoblasts at diagnosis accumulate high levels of methotrexate (MTX) and MTX polyglutamates (MTXPGs) in vitro experience a better event-free survival than those whose lymphoblasts do not (Blood 76:44, 1990). Lymphoblasts from 13 children with hyperdiploidy (greater than 50 chromosomes) accumulated high levels of MTX-PGs (1,095 and 571 to 2,346 pmol/10(9) cells [median and 25% to 75% intraquartile range]). These levels were higher than those in B-lineage lymphoblasts from 19 children with other aneuploidy (326 and 159 to 775 pmol/10(9) cells) and 15 children with diploidy (393 and 204 to 571 pmol/10(9) cells) (P = .0015). Chromosomal trisomies in hyperdiploid cases were highly nonrandom. Chromosome 9 was not one of the chromosomes involved in trisomies, even though this chromosome contains the gene for folate polyglutamate synthetase, which is the enzyme required for MTXPG synthesis. The correlation between MTXPG level and percentage of S-phase cells was weak, suggesting that increased levels of MTXPGs could not be attributed to elevated proportions of cells in active DNA synthesis. The ability of hyperdiploid lymphoblasts to accumulate high levels of MTXPGs may increase their sensitivity to MTX cytotoxicity, accounting in part for the improved outlook for hyperdiploid patients treated with regimens that emphasize MTX as a primary component of continuation therapy.
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Affiliation(s)
- V M Whitehead
- Penny Cole Hematology Research Laboratory, McGill University-Montreal Children's Hospital Research Institute, Quebec, Canada
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Ochs J, Brecher ML, Mahoney D, Vega R, Pollock BH, Buchanan GR, Whitehead VM, Ravindranath Y, Freeman AI. Recombinant interferon alfa given before and in combination with standard chemotherapy in children with acute lymphoblastic leukemia in first marrow relapse: a Pediatric Oncology Group pilot study. J Clin Oncol 1991; 9:777-82. [PMID: 2016619 DOI: 10.1200/jco.1991.9.5.777] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Recombinant interferon alfa (rIFN-alpha) was given to 31 children with acute lymphoblastic leukemia (ALL) in first on-therapy marrow relapse as the sole treatment (30 megaunits/m2/d intravenously x 10 days) before standard four-drug reinduction and during multiagent continuation therapy (30 megaunits/m2 subcutaneously x 3 consecutive days every 3 weeks). After 10 days of rIFN-alpha, there were two partial remissions (PRs); seven additional patients had either greater than or equal to 25% reduction in the percentage of marrow blast cells or hypoplastic marrow. Two patients had progressive disease with an increase in leukocyte counts. All patients experienced influenza-like symptoms, and there were isolated instances of severe abdominal pain and personality change. Dose-limiting toxicity comprised grade III/IV transaminase elevation (two patients) and syncope with personality change (one patient). Twenty-three of 31 children (74%) subsequently achieved marrow remission using standard agents. One patient was taken off study during teniposide (VM-26) and cytarabine (ara-C) consolidation due to toxicity. Continuation therapy including rIFN-alpha pulse was well tolerated in the remaining children; only one patient required rIFN-alpha dosage reduction (for CNS toxicity). rIFN-alpha toxicity did not necessitate reductions in doses of standard chemotherapy agents or significant delays in therapy. Five patients remain in remission at 26+ to 36+ months; 13 patients relapsed in marrow, one in the meninges (7 months), and one in meninges, mediastinum, and lymph nodes (2 months). Two children were removed from study for marrow transplant. In summary, high-dose rIFN-alpha alone had a modest antileukemic effect. In contrast to the clinical experience with combined rIFN-alpha and chemotherapy in adults, rIFN-alpha given in a pulse-like manner throughout continuation therapy did not compromise the intensity of the standard chemotherapy regimen.
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Affiliation(s)
- J Ochs
- St Jude Children's Research Hospital, Memphis, TN
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39
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Mahoney D, Denham C. From jump ropes to stethoscopes. Am J Nurs 1991; 91:42-3. [PMID: 1984359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Crist WM, Carroll AJ, Shuster JJ, Behm FG, Whitehead M, Vietti TJ, Look AT, Mahoney D, Ragab A, Pullen DJ. Poor prognosis of children with pre-B acute lymphoblastic leukemia is associated with the t(1;19)(q23;p13): a Pediatric Oncology Group study. Blood 1990; 76:117-22. [PMID: 2364165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The prognostic significance of chromosomal translocations, particularly t(1;19) (q23;p13), was evaluated in children with pre-B and early pre-B acute lymphoblastic leukemia (ALL). Patients were treated on a risk-based protocol of the Pediatric Oncology Group (POG) between February 1986 and May 1989. An abnormal clone was detected in 46% (130 of 285) of pre-B cases and 56% (380 of 679) of early pre-B cases. Translocation of any type was associated with a worse treatment outcome than other karyotypic abnormalities: 15 of 66 versus 3 of 64 failed therapy in the pre-B group (P = .001), and 37 of 141 versus 23 of 239 failed in the early pre-B group (P less than .001). The t(1;19) (q23;p13) occurred significantly more often in cases of pre-B ALL with a clonal abnormality than in early pre-B ALL cases (29 of 130 v 5 of 380, P less than .001). Among the 285 pre-B cases in which bone marrow was studied cytogenetically, those with t(1;19) had a significantly worse treatment outcome than all others (11 of 29 v 27 of 256 have failed therapy, P less than .001). This difference is significant (P less than .001) after adjustment for leukocyte count, age, and other relevant features. Cases with the t(1;19) also had a worse prognosis than pre-B patients with other translocations (4 of 37 have failed, P less than .01) or with any other karyotypic abnormality (7 of 101 have failed, P less than .001). We conclude that chromosomal translocations confer a worse prognosis for non-T, non-B-cell childhood ALL, and that the t(1;19) is largely responsible for the poor prognosis of the pre-B subgroup.
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Affiliation(s)
- W M Crist
- St Jude Children's Research Hospital
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41
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Mahoney D. Under oath: testifying against a physician. Am J Nurs 1990; 90:23, 26. [PMID: 2305820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- D Mahoney
- Stephen F. Austin State University, Nacogdoches, TX
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Camitta B, Leventhal B, Lauer S, Shuster JJ, Adair S, Casper J, Civin C, Graham M, Mahoney D, Munoz L. Intermediate-dose intravenous methotrexate and mercaptopurine therapy for non-T, non-B acute lymphocytic leukemia of childhood: a Pediatric Oncology Group study. J Clin Oncol 1989; 7:1539-44. [PMID: 2778483 DOI: 10.1200/jco.1989.7.10.1539] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Methotrexate (MTX) and mercaptopurine (MP) are the mainstays of continuation therapy for acute lymphocytic leukemia (ALL). These drugs are stored in tissues as active metabolites. Relapse in ALL might reflect failure to achieve adequate intracellular drug levels. Assured (parenteral) delivery of higher doses of MTX and MP should maximize tissue levels of these drugs by overcoming individual variations in absorption, metabolism, clearance, and compliance. Fifty-nine children with ALL at lower risk of relapse received 12 intensive MTX/MP courses immediately after 4 weeks of standard vincristine, prednisone, and asparaginase induction. Each 2-week intensive course included: MTX, 200 mg/m2 intravenous (IV) push then 800 mg/m2 IV over 24 hours on day 1; MP, 200 mg/m2 IV push then 800 mg/m2 IV over 8 hours on day 2; MTX, 20 mg/m2 intramuscularly on day 8; and MP, 50 mg/m2 orally daily on days 8 to 14. After the 6 months of intensive therapy, continuation therapy was weekly MTX/MP (as on days 8 to 14) for 1 or 2 years. Age-based MTX was given intrathecally (IT) for CNS prophylaxis. All patients entered remission. Three patients relapsed: bone marrow (at 24 and 37 months), and bone marrow and CNS (at 34 months). There were no isolated CNS relapses or deaths in remission. Event-free survival at 4 years is 94% (SE, 7%) by Kaplan-Meier analysis. Toxicities (infection, mucositis) occurred in less than 10% of intensive MTX/MP courses. However, a child with Down's syndrome withdrew after three courses because of recurrent severe mucositis. Further studies of this regimen are in progress.
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Affiliation(s)
- B Camitta
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee
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Crist W, Boyett J, Jackson J, Vietti T, Borowitz M, Chauvenet A, Winick N, Ragab A, Mahoney D, Head D. Prognostic importance of the pre-B-cell immunophenotype and other presenting features in B-lineage childhood acute lymphoblastic leukemia: a Pediatric Oncology Group study. Blood 1989; 74:1252-9. [PMID: 2669998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
We report the prognostic significance of the pre-B-cell immunophenotype and other presenting features, including blast cell karyotype, in a randomized clinical trial conducted from 1981 to 1986 for children with early pre-B (n = 685) or pre-B (n = 222) acute lymphoblastic leukemia (ALL). Patients greater than or equal to 1 year and less than or equal to 21 years of age who attained complete remission were stratified by conventional risk criteria and immunophenotype and then randomized to receive continuation therapy with either of two regimens of intensive chemotherapy, designated S (standard) and SAM (standard plus intermediate-dose methotrexate, 1 g/m2 every 8 weeks). The proportions of subjects achieving complete remission in the two phenotypically defined subgroups were identical, 96%. At a median follow-up time of 42 months, the overall probability of 4-year event-free survival (+/- SE) was 63% +/- 2% (pre-B = 51% +/- 5% and early pre-B = 66% +/- 3%). Children with pre-B ALL had significantly shorter durations of continuous complete remission (P = .0004); this association included both bone marrow and CNS remissions (P = .0004 and P = .02, respectively). In a univariate Cox regression analysis of potentially important prognostic factors, the pre-B immunophenotype was significantly related to a poorer outcome, as were other recognized biologic and clinical features (eg, pseudodiploidy, older age, male sex, black race, and a higher WBC). It retained its prognostic strength in a multivariate model based on age, WBC, ploidy, and sex. The risk of failure at any point in the clinical course of a child with the pre-B immunophenotype was 1.8 times as great as that in a patient lacking this feature but otherwise having an equivalent risk status. It should be stressed that the predictive value of any of the significant characteristics identified in this study could diminish in the context of another, more effective treatment program. Nevertheless, our major conclusion, that children with pre-B ALL fare worse than those with early pre-B disease in a contemporary clinical trial has implications for stratified randomization of patients and the design of risk-specific treatment protocols.
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Affiliation(s)
- W Crist
- St Jude Children's Research Hospital, Memphis, Tennessee
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44
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Graham-Pole J, Camitta B, Casper J, Elfenbein G, Gross S, Herzig R, Koch P, Mahoney D, Marcus R, Munoz L. Intravenous immunoglobulin may lessen all forms of infection in patients receiving allogeneic bone marrow transplantation for acute lymphoblastic leukemia: a pediatric oncology group study. Bone Marrow Transplant 1988; 3:559-66. [PMID: 3063324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Fifty patients with refractory acute lymphoblastic leukemia underwent allogeneic bone marrow transplantation after conditioning with high-dose cytosine arabinoside and fractionated total body irradiation. Twenty-nine received intravenous immunoglobulin (i.v.Ig) infusion, primarily to prevent cytomegalovirus infection, and 21 did not. The two groups were biologically comparable. Seven (24.5%) of the i.v.Ig-treated and 14 (66.7%) of the non-i.v.Ig-treated patients developed systemic viral, fungal or bacterial infections and/or interstitial pneumonitis (p less than 0.005), which were fatal in three and 12 cases respectively (p less than 0.001). Currently, 23 (79.3%) of the 29 i.v.Ig-treated and eight (38.1%) of the 21 non-i.v.Ig-treated patients are alive and well (p less than 0.01). We conclude that prophylactic i.v.Ig infusions may reduce the frequency of all forms of serious infection in patients with acute lymphoblastic leukemia undergoing allogeneic marrow transplantation, and thereby improve their survival expectation.
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Shulman RJ, Smith EO, Rahman S, Gardner P, Reed T, Mahoney D. Single- vs double-lumen central venous catheters in pediatric oncology patients. Am J Dis Child 1988; 142:893-5. [PMID: 3394681 DOI: 10.1001/archpedi.1988.02150080099034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Double-lumen central venous catheters (CVCs) have been introduced recently for use in pediatric patients. The objective of our study was to determine if double-lumen CVC usage increased the possibility of infectious and mechanical complications compared with that of traditional single-lumen CVCs in a population at high risk for infection (oncology patients). Thirty pediatric patients (2.5 +/- 3.0 years old; mean +/- SD) who received single-lumen CVCs were compared with 31 patients (5.9 +/- 4.7 years old) who received double-lumen CVCs. The incidence of infectious complications was compared while controlling for potential confounding variables. Fifty-seven percent (17/30) of patients in the single-lumen group experienced bacteremia or cellulitis that required removal of six catheters compared with a rate of 52% (16/31) and nine catheter removals in the double-lumen group. Fewer manipulations occurred in the single-lumen group compared with the double-lumen group, but the incidence of mechanical complications tended to be greater. When managed carefully, double-lumen CVCs were not associated with a greater risk of infection than single-lumen CVCs.
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Kung F, Hayes FA, Krischer J, Mahoney D, Leventhal B, Brodeur G, Berry DH, Dubowy R, Toledano S. Clinical trial of etoposide (VP-16) in children with recurrent malignant solid tumors. A phase II study from the Pediatric Oncology Group. Invest New Drugs 1988; 6:31-6. [PMID: 3410665 DOI: 10.1007/bf00170776] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Etoposide (VP-16), 150 mg/M2, given intravenously daily for 3 days every 3 weeks resulted in 3 complete responses and 6 partial responses in 154 patients with a spectrum of recurrent malignant solid tumors. There was evidence of disease control in an additional 37 patients (27 mixed responses and 10 stable disease). These responses occurred primarily in patients with Ewing's sarcoma, Hodgkin's disease, neuroblastoma and rhabdomyosarcoma. Most of the patients had every extensive prior therapy; however prior therapy with teniposide (VM-26), the congener of VP-16, did not seem to preclude responses to the latter drug. Myelosuppression was the principal form of toxicity. Neutropenia characterized by absolute neutrophil counts of 0.5 to 0.9 x 10(9)/L occurred in one-half of the patients, and thrombopenia with platelet counts of less than 25 to 49 x 10(9)/L in one-fourth. These results demonstrate a favorable therapeutic index for VP-16 in several recurrent childhood solid tumors, supporting its use as a component of primary therapy for these diseases.
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Affiliation(s)
- F Kung
- University of California, San Diego
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Marshall M, Mahoney D, Rose A, Hicks JB, Broach JR. Functional domains of SIR4, a gene required for position effect regulation in Saccharomyces cerevisiae. Mol Cell Biol 1987; 7:4441-52. [PMID: 3325825 PMCID: PMC368128 DOI: 10.1128/mcb.7.12.4441-4452.1987] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The product of the Saccharomyces cerevisiae SIR4 gene, in conjunction with at least three other gene products, prevents expression of mating-type genes resident at loci at either end of chromosome III, but not of the same genes resident at the MAT locus in the middle of the chromosome. To address the mechanism of this novel position effect regulation, we have conducted a structural and genetic analysis of the SIR4 gene. We have determined the nucleotide sequence of the gene and found that it encodes a lysine-rich, serine-rich protein of 152 kilodaltons. Expression of the carboxy half of the protein complements a chromosomal nonsense mutation of sir4 but not a complete deletion of the gene. These results suggest that SIR4 protein activity resides in two portions of the molecule, but that these domains need not be covalently linked to execute their biological function. We also found that high-level expression of the carboxy domain of the protein yields dominant derepression of the silent loci. This anti-Sir activity can be reversed by increased expression of the SIR3 gene, whose product is normally also required for maintaining repression of the silent loci. These results are consistent with the hypothesis that SIR3 and SIR4 proteins physically associate to form a multicomponent complex required for repression of the silent mating-type loci.
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Affiliation(s)
- M Marshall
- Department of Molecular Biology, Princeton University, New Jersey 08544
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Morabito F, Prasthofer EF, Pullen DJ, Mahoney D, Downing JR, Crist WM, Grossi CE. Analysis of surface antigen profile, TdT expression, and T cell receptor gene rearrangement for maturational staging of leukemic T cells: a pediatric oncology group study. Leukemia 1987; 1:514-7. [PMID: 3499547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
By using monoclonal antibodies specific for T lineage surface antigens, neoplastic T cells from 53 children with T cell acute lymphoblastic leukemia and T cell non-Hodgkin's lymphoma were analyzed and assigned to phenotypically defined stages of T cell maturation. Cells were also analyzed for T cell antigen receptor beta-chain gene and immunoglobulin heavy and light chain gene rearrangements. Clonal rearrangements of T cell antigen receptor beta-chain gene and a germ-line configuration of the immunoglobulin genes were found in cells from all cases. The expression of the terminal deoxynucleotidyl transferase (TdT) in leukemic T cells was studied by both qualitative immunofluorescence and quantitative enzyme immunoassay, and the level of TdT expression was correlated with maturational stages. Lymphoblasts classified as prethymic (3 patients) did not express detectable TdT. In contrast, cells from approximately 60% of the patients with early (15 patients) or intermediate (19 patients) thymocytic phenotypes and approximately 40% of the patients with mature thymocytic phenotype (16 patients) were positive for TdT. Thus, in these leukemic clones TdT was randomly expressed and showed no correlation with maturational stage.
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MESH Headings
- Antibodies, Monoclonal
- Antigens, Differentiation, T-Lymphocyte/analysis
- Antigens, Neoplasm/analysis
- Cell Differentiation
- DNA Nucleotidylexotransferase/genetics
- Genes
- Humans
- Leukemia, Lymphoid/classification
- Leukemia, Lymphoid/genetics
- Leukemia, Lymphoid/immunology
- Lymphoma, Non-Hodgkin/classification
- Lymphoma, Non-Hodgkin/genetics
- Lymphoma, Non-Hodgkin/immunology
- Neoplasm Staging
- Receptors, Antigen, T-Cell/genetics
- T-Lymphocytes/classification
- T-Lymphocytes/immunology
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Mahoney D, Huang SC, Ricci AR, Mazziotta JC, Carson RE, Hoffman EJ, Phelps ME. A Realistic Computer-Simulated Brain Phantom for Evaluation of PET Charactenstics. IEEE Trans Med Imaging 1987; 6:250-257. [PMID: 18244028 DOI: 10.1109/tmi.1987.4307834] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
To evaluate accurately the imaging characteristics of positron emission tomography (PET), a realistic computer-simulated brain phantom was developed. A cross-sectional slice from a human cadaver brain was chosen for its combination of gray matter, white matter, and cerebrospinal fluid (CSF) regions. The slice was photographed and digitized into a gray-level image with a video digitizer, boundary edges were located around cerebral structures in the digitized image, and each structural region was assigned a uniform pixel value dependent on both the cerebral parameter (e.g., blood flow, oxygen uptake, metabolic rate) under investigation and the type of structure (gray matter, white matter, CSF). Line integrals through the regions were generated at various angular and transverse positions according to specific physical characteristics (such as detector line-spread function) of a tomographic scanner configuration to create a set of simulated but realistic projection measurements. The set of projection measurements can be processed with any standard reconstruction program to create a tomographic image to reveal the effects of various PET characteristics. Investigations with this computer-simulated brain phantom have demonstrated its usefulness for examining the interrelations among neuroanatomical structure volume, tomographic spatial resolution, partial volume effect, and nonlinear parameter estimation. Transportability of the simulated phantom and the procedure to other medical imaging environments is described, and limitations of this simulation procedure are discussed.
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50
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Shulman RJ, Rahman S, Mahoney D, Pokorny WJ, Bloss R. A totally implanted venous access system used in pediatric patients with cancer. J Clin Oncol 1987; 5:137-40. [PMID: 3806156 DOI: 10.1200/jco.1987.5.1.137] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A safe and effective method of venous access is important in the care and treatment of patients with malignancies. A recently available totally implantable venous access system offers advantages over traditional central vein catheters (Broviac and Hickman, Houston). We report our experience with the implanted venous access system used in 31 pediatric patients with malignancies. The mean age of the patients was 7 years (range, 6 months to 17 years), and the mean indwelling time of the catheters was 232 days (range, 14 to 607 days; total patient days, 7,198). The catheters were used to administer chemotherapy, drugs, blood products, and parenteral nutrition, as well as to draw blood. Clotting occurred in the catheters on four occasions, requiring removal of two catheters. Fever occurred in eight patients; one developed a local infection at the site of implantation and four developed bacteremia. Our use of the implanted venous access system in children resulted in a lower rate of infection compared with that when the traditional Broviac and Hickman catheters were used, and simplified patient management.
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