1
|
Tibaldi T, Roccuzzo G, Fazio A, Cattani I, Nuzzi R, Quaglino P, Reibaldi M. Visual symptoms in a patient treated with MEK inhibitors. Eur J Ophthalmol 2024; 34:NP144-NP147. [PMID: 36517976 DOI: 10.1177/11206721221145739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2023]
Abstract
PURPOSE to report an uncommon presentation of Encorafenib-Binimetinib retinal side effects. CASE REPORT A 56-year-old Caucasian woman, naïve to previous chemotherapies, was started on Encorafenib/Binimetinib for metastatic melanoma. After seven hours from the first 45 mg Binimetinib dose, the patient developed blurry vision with coloured halos. The symptoms were transient and the following day a complete ophthalmological examination revealed the presence of subretinal fluid (SRF) at Optical coherence tomography (OCT). After one week, the patient remained asymptomatic, with no signs of SRF at the follow up reevaluation. However, six weeks later, the symptoms originally experienced with the first drug intake appeared again. This time fundus examination revealed an irregular macular region. At infrared OCT an almond shaped hyporeflective lesion, surrounded by hyperreflectivity, was demonstrated without signs of SRF. Encorafenib/Binimetinib was continued at the same dose and strict monitoring was scheduled, according to the European Medicine's Agency indication to withhold the drug only in presence of symptomatic retinal pigment epithelial detachment. CONCLUSION Visual symptoms associated with SRF induced by Binimetinib have been described in the literature. In our case, visual symptoms were experienced by the patient at different times, both with and without evidence of SRF. This finding seems to suggest that while Binimetinib-induced SRF is an asymptomatic finding in most cases, with excellent outcome and rapid resolution, visual symptoms could be initially triggered by detectable SRF, yet persist without any further evidence of abnormal fluid accumulation and manifest intermittently.
Collapse
Affiliation(s)
- Tommaso Tibaldi
- Ophthalmology Unit, A.O.U. City of Health and Science of Turin, Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Gabriele Roccuzzo
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - Alessandra Fazio
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - Ilaria Cattani
- Ophthalmology Unit, A.O.U. City of Health and Science of Turin, Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Raffaele Nuzzi
- Ophthalmology Unit, A.O.U. City of Health and Science of Turin, Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Pietro Quaglino
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - Michele Reibaldi
- Ophthalmology Unit, A.O.U. City of Health and Science of Turin, Department of Surgical Sciences, University of Turin, Turin, Italy
| |
Collapse
|
2
|
Fazio A, Bitrán-Ambler M, Ramírez-Rivera S, Zaffiri V, Bernal G. Genotyping of Helicobacter pylori CagA/CagE strains in gastric mucosa and its association with gastric illness. Diagn Microbiol Infect Dis 2023; 107:116028. [PMID: 37499605 DOI: 10.1016/j.diagmicrobio.2023.116028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023]
Abstract
The aim of this work was associate the presence of the virulence factors of Helicobacter pylori, cagA/cagE, with gastric illness. We found evidence that indicate the contribution of these genotypes with the severity of gastric lesions in patients infected, principally in histological subtypes as atrophic gastritis, and metaplasia.
Collapse
Affiliation(s)
- A Fazio
- Laboratory of Molecular and Cellular Biology of Cancer (CáncerLab), Department of Biomedical Sciences, Faculty of Medicine, Universidad Católica del Norte, Coquimbo, Chile
| | - M Bitrán-Ambler
- Laboratory of Molecular and Cellular Biology of Cancer (CáncerLab), Department of Biomedical Sciences, Faculty of Medicine, Universidad Católica del Norte, Coquimbo, Chile
| | - S Ramírez-Rivera
- Laboratory of Molecular and Cellular Biology of Cancer (CáncerLab), Department of Biomedical Sciences, Faculty of Medicine, Universidad Católica del Norte, Coquimbo, Chile
| | - V Zaffiri
- Laboratory of Molecular and Cellular Biology of Cancer (CáncerLab), Department of Biomedical Sciences, Faculty of Medicine, Universidad Católica del Norte, Coquimbo, Chile
| | - G Bernal
- Laboratory of Molecular and Cellular Biology of Cancer (CáncerLab), Department of Biomedical Sciences, Faculty of Medicine, Universidad Católica del Norte, Coquimbo, Chile.
| |
Collapse
|
3
|
Mastorino L, Burzi L, Frigatti G, Fazio A, Celoria V, Macagno N, Rosset F, Passerini SG, Roccuzzo G, Verrone A, Stroppiana E, Ortoncelli M, Dapavo P, Quaglino P, Ribero S. Clinical effectiveness of IL-17 and IL-23 inhibitors on difficult-to-treat psoriasis areas (scalp, genital, and palmoplantar sites): a retrospective, observational, single-center, real-life study. Expert Opin Biol Ther 2023; 23:929-936. [PMID: 37458181 DOI: 10.1080/14712598.2023.2236023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/10/2023] [Indexed: 07/21/2023]
Abstract
INTRODUCTION Psoriasis affecting the genital, palmoplantar, and scalp regions is recognized as difficult-to-treat, and data on the efficacy of biologics in these areas remains limited. RESEARCH DESIGN AND METHODS This single-center study evaluated the effectiveness of anti-IL-17 and anti-IL-23 agents on scalp, genital, and palmoplantar psoriasis. We retrospectively analyzed data from all patients with psoriasis being treated with IL inhibitors at our clinic. Effectiveness was evaluated at 16, 28, and 52 weeks, according to the achievement of relative and mean PSSI, PGA-G, and ppPASI. RESULTS In all, 308 patients showed involvement of the scalp, 136 in the genital area, and 94 in the palmoplantar regions. On scalp psoriasis, anti-IL-17 agents demonstrated superiority in disease control compared to anti-IL-23 agents. PSSI100 at week 16 was reached by 59% of patients on an anti-IL17 vs 39.8% on an anti-IL-23 (p < 0.003). At genital sites, no significant differences between anti-IL-17 and anti-IL-23 agents were observed, and all classes achieved PGA-G 0/1. No significant differences between anti-IL-17 and anti-IL-23 agents were observed in palmoplantar areas. CONCLUSIONS The present data support the utility of both anti-IL-17 and anti-IL-23 agents for the treatment of difficult-to-treat areas in patients with psoriasis. Anti-IL-17 agents achieved better control of scalp psoriasis.
Collapse
Affiliation(s)
- Luca Mastorino
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Lorenza Burzi
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Giada Frigatti
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Alessandra Fazio
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Valentina Celoria
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Nicole Macagno
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Francois Rosset
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | | | - Gabriele Roccuzzo
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Anna Verrone
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Elena Stroppiana
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Michela Ortoncelli
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Paolo Dapavo
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Pietro Quaglino
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Simone Ribero
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| |
Collapse
|
4
|
Grivas P, Khaki AR, Wise-Draper TM, French B, Hennessy C, Hsu CY, Shyr Y, Li X, Choueiri TK, Painter CA, Peters S, Rini BI, Thompson MA, Mishra S, Rivera DR, Acoba JD, Abidi MZ, Bakouny Z, Bashir B, Bekaii-Saab T, Berg S, Bernicker EH, Bilen MA, Bindal P, Bishnoi R, Bouganim N, Bowles DW, Cabal A, Caimi PF, Chism DD, Crowell J, Curran C, Desai A, Dixon B, Doroshow DB, Durbin EB, Elkrief A, Farmakiotis D, Fazio A, Fecher LA, Flora DB, Friese CR, Fu J, Gadgeel SM, Galsky MD, Gill DM, Glover MJ, Goyal S, Grover P, Gulati S, Gupta S, Halabi S, Halfdanarson TR, Halmos B, Hausrath DJ, Hawley JE, Hsu E, Huynh-Le M, Hwang C, Jani C, Jayaraj A, Johnson DB, Kasi A, Khan H, Koshkin VS, Kuderer NM, Kwon DH, Lammers PE, Li A, Loaiza-Bonilla A, Low CA, Lustberg MB, Lyman GH, McKay RR, McNair C, Menon H, Mesa RA, Mico V, Mundt D, Nagaraj G, Nakasone ES, Nakayama J, Nizam A, Nock NL, Park C, Patel JM, Patel KG, Peddi P, Pennell NA, Piper-Vallillo AJ, Puc M, Ravindranathan D, Reeves ME, Reuben DY, Rosenstein L, Rosovsky RP, Rubinstein SM, Salazar M, Schmidt AL, Schwartz GK, Shah MR, Shah SA, Shah C, Shaya JA, Singh SRK, Smits M, Stockerl-Goldstein KE, Stover DG, Streckfuss M, Subbiah S, Tachiki L, Tadesse E, Thakkar A, Tucker MD, Verma AK, Vinh DC, Weiss M, Wu JT, Wulff-Burchfield E, Xie Z, Yu PP, Zhang T, Zhou AY, Zhu H, Zubiri L, Shah DP, Warner JL, Lopes G. Association of clinical factors and recent anticancer therapy with COVID-19 severity among patients with cancer: a report from the COVID-19 and Cancer Consortium. Ann Oncol 2021; 32:787-800. [PMID: 33746047 PMCID: PMC7972830 DOI: 10.1016/j.annonc.2021.02.024] [Citation(s) in RCA: 202] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/18/2021] [Accepted: 02/28/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Patients with cancer may be at high risk of adverse outcomes from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We analyzed a cohort of patients with cancer and coronavirus 2019 (COVID-19) reported to the COVID-19 and Cancer Consortium (CCC19) to identify prognostic clinical factors, including laboratory measurements and anticancer therapies. PATIENTS AND METHODS Patients with active or historical cancer and a laboratory-confirmed SARS-CoV-2 diagnosis recorded between 17 March and 18 November 2020 were included. The primary outcome was COVID-19 severity measured on an ordinal scale (uncomplicated, hospitalized, admitted to intensive care unit, mechanically ventilated, died within 30 days). Multivariable regression models included demographics, cancer status, anticancer therapy and timing, COVID-19-directed therapies, and laboratory measurements (among hospitalized patients). RESULTS A total of 4966 patients were included (median age 66 years, 51% female, 50% non-Hispanic white); 2872 (58%) were hospitalized and 695 (14%) died; 61% had cancer that was present, diagnosed, or treated within the year prior to COVID-19 diagnosis. Older age, male sex, obesity, cardiovascular and pulmonary comorbidities, renal disease, diabetes mellitus, non-Hispanic black race, Hispanic ethnicity, worse Eastern Cooperative Oncology Group performance status, recent cytotoxic chemotherapy, and hematologic malignancy were associated with higher COVID-19 severity. Among hospitalized patients, low or high absolute lymphocyte count; high absolute neutrophil count; low platelet count; abnormal creatinine; troponin; lactate dehydrogenase; and C-reactive protein were associated with higher COVID-19 severity. Patients diagnosed early in the COVID-19 pandemic (January-April 2020) had worse outcomes than those diagnosed later. Specific anticancer therapies (e.g. R-CHOP, platinum combined with etoposide, and DNA methyltransferase inhibitors) were associated with high 30-day all-cause mortality. CONCLUSIONS Clinical factors (e.g. older age, hematological malignancy, recent chemotherapy) and laboratory measurements were associated with poor outcomes among patients with cancer and COVID-19. Although further studies are needed, caution may be required in utilizing particular anticancer therapies. CLINICAL TRIAL IDENTIFIER NCT04354701.
Collapse
Affiliation(s)
- P Grivas
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA.
| | - A R Khaki
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA; Stanford University, Stanford, USA
| | | | - B French
- Vanderbilt University Medical Center, Nashville, USA
| | - C Hennessy
- Vanderbilt University Medical Center, Nashville, USA
| | - C-Y Hsu
- Vanderbilt University Medical Center, Nashville, USA
| | - Y Shyr
- Vanderbilt University Medical Center, Nashville, USA
| | - X Li
- Vanderbilt University School of Medicine, Nashville, USA
| | | | - C A Painter
- Broad Institute, Cancer Program, Cambridge, USA
| | - S Peters
- Lausanne University, Lausanne, Switzerland
| | - B I Rini
- Vanderbilt University Medical Center, Nashville, USA
| | | | - S Mishra
- Vanderbilt University Medical Center, Nashville, USA
| | - D R Rivera
- Division of Cancer Control and Population Sciences, National Cancer Institute, Rockville, USA
| | - J D Acoba
- University of Hawaii Cancer Center, Honolulu, USA
| | - M Z Abidi
- University of Colorado School of Medicine, Aurora, USA
| | - Z Bakouny
- Dana-Farber Cancer Institute, Boston, USA
| | - B Bashir
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, USA
| | | | - S Berg
- Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, USA
| | | | - M A Bilen
- Winship Cancer Institute of Emory University, Atlanta, USA
| | - P Bindal
- Beth Israel Deaconess Medical Center, Boston, USA
| | - R Bishnoi
- University of Florida, Gainesville, USA
| | - N Bouganim
- McGill University Health Centre, Montréal, Canada
| | - D W Bowles
- University of Colorado School of Medicine, Aurora, USA
| | - A Cabal
- University of California San Diego, Moores Cancer Center, La Jolla, USA
| | - P F Caimi
- University Hospitals Seidman Cancer Center, Cleveland, USA; Case Western Reserve University, Cleveland, USA
| | - D D Chism
- Thompson Cancer Survival Center, Knoxville, USA
| | - J Crowell
- St. Elizabeth Healthcare, Edgewood, USA
| | - C Curran
- Dana-Farber Cancer Institute, Boston, USA
| | - A Desai
- Mayo Clinic Cancer Center, Rochester, USA
| | - B Dixon
- St. Elizabeth Healthcare, Edgewood, USA
| | - D B Doroshow
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, USA
| | - E B Durbin
- Markey Cancer Center, University of Kentucky, Lexington, USA
| | - A Elkrief
- McGill University Health Centre, Montréal, Canada
| | - D Farmakiotis
- The Warren Alpert Medical School of Brown University, Providence, USA
| | - A Fazio
- Tufts Medical Center Cancer Center, Boston and Stoneham, USA
| | - L A Fecher
- University of Michigan Rogel Cancer Center, Ann Arbor, USA
| | - D B Flora
- St. Elizabeth Healthcare, Edgewood, USA
| | - C R Friese
- University of Michigan Rogel Cancer Center, Ann Arbor, USA
| | - J Fu
- Tufts Medical Center Cancer Center, Boston and Stoneham, USA
| | - S M Gadgeel
- Henry Ford Cancer Institute/Henry Ford Health System, Detroit, USA
| | - M D Galsky
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, USA
| | - D M Gill
- Intermountain Healthcare, Salt Lake City, USA
| | | | - S Goyal
- George Washington University, Washington DC, USA
| | - P Grover
- University of Cincinnati Cancer Center, Cincinnati, USA
| | - S Gulati
- University of Cincinnati Cancer Center, Cincinnati, USA
| | - S Gupta
- Cleveland Clinic Taussig Cancer Institute, Cleveland, USA
| | | | | | - B Halmos
- Albert Einstein Cancer Center/Montefiore Medical Center, Bronx, USA
| | - D J Hausrath
- Vanderbilt University School of Medicine, Nashville, USA
| | - J E Hawley
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, USA
| | - E Hsu
- Hartford HealthCare, Hartford, USA; University of Connecticut, Farmington, USA
| | - M Huynh-Le
- George Washington University, Washington DC, USA
| | - C Hwang
- Henry Ford Cancer Institute/Henry Ford Health System, Detroit, USA
| | - C Jani
- Mount Auburn Hospital, Cambridge, USA
| | | | - D B Johnson
- Vanderbilt University Medical Center, Nashville, USA
| | - A Kasi
- University of Kansas Medical Center, Kansas City, USA
| | - H Khan
- The Warren Alpert Medical School of Brown University, Providence, USA
| | - V S Koshkin
- University of California, San Francisco, San Francisco, USA
| | - N M Kuderer
- Advanced Cancer Research Group, LLC, Kirkland, USA
| | - D H Kwon
- University of California, San Francisco, San Francisco, USA
| | | | - A Li
- Baylor College of Medicine, Houston, USA
| | | | - C A Low
- Intermountain Healthcare, Salt Lake City, USA
| | | | - G H Lyman
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA
| | - R R McKay
- University of California San Diego, Moores Cancer Center, La Jolla, USA
| | - C McNair
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, USA
| | - H Menon
- Penn State Health/Penn State Cancer Institute/St. Joseph Cancer Center, Hershey, USA
| | - R A Mesa
- Mays Cancer Center at UT Health San Antonio MD Anderson, San Antonio, USA
| | - V Mico
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, USA
| | - D Mundt
- Advocate Aurora Health, Milwaukee, USA
| | - G Nagaraj
- Loma Linda University Cancer Center, Loma Linda, USA
| | - E S Nakasone
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA
| | - J Nakayama
- Case Western Reserve University, Cleveland, USA; University Hospitals Cleveland Medical Center, Cleveland, USA
| | - A Nizam
- Cleveland Clinic Taussig Cancer Institute, Cleveland, USA
| | - N L Nock
- University Hospitals Seidman Cancer Center, Cleveland, USA; Case Western Reserve University, Cleveland, USA
| | - C Park
- University of Cincinnati Cancer Center, Cincinnati, USA
| | - J M Patel
- Beth Israel Deaconess Medical Center, Boston, USA
| | - K G Patel
- University of California Davis Comprehensive Cancer Center, Sacramento, USA
| | - P Peddi
- Willis-Knighton Cancer Center, Shreveport, USA
| | - N A Pennell
- Cleveland Clinic Taussig Cancer Institute, Cleveland, USA
| | | | - M Puc
- Virtua Health, Marlton, USA
| | | | - M E Reeves
- Loma Linda University Cancer Center, Loma Linda, USA
| | - D Y Reuben
- Medical University of South Carolina, Charleston, USA
| | | | - R P Rosovsky
- Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | | | - M Salazar
- Mays Cancer Center at UT Health San Antonio MD Anderson, San Antonio, USA
| | | | - G K Schwartz
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, USA
| | - M R Shah
- Rutgers Cancer Institute of New Jersey, New Brunswick, USA
| | - S A Shah
- Stanford University, Stanford, USA
| | - C Shah
- University of Florida, Gainesville, USA
| | - J A Shaya
- University of California San Diego, Moores Cancer Center, La Jolla, USA
| | - S R K Singh
- Henry Ford Cancer Institute/Henry Ford Health System, Detroit, USA
| | - M Smits
- ThedaCare Regional Cancer Center, Appleton, USA
| | | | - D G Stover
- The Ohio State University, Columbus, USA
| | | | - S Subbiah
- Stanley S. Scott Cancer Center, LSU Health Sciences Center, New Orleans, USA
| | - L Tachiki
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA
| | - E Tadesse
- Advocate Aurora Health, Milwaukee, USA
| | - A Thakkar
- Albert Einstein Cancer Center/Montefiore Medical Center, Bronx, USA
| | - M D Tucker
- Vanderbilt University Medical Center, Nashville, USA
| | - A K Verma
- Albert Einstein Cancer Center/Montefiore Medical Center, Bronx, USA
| | - D C Vinh
- McGill University Health Centre, Montréal, Canada
| | - M Weiss
- ThedaCare Regional Cancer Center, Appleton, USA
| | - J T Wu
- Stanford University, Stanford, USA
| | | | - Z Xie
- Mayo Clinic Cancer Center, Rochester, USA
| | - P P Yu
- Hartford HealthCare, Hartford, USA
| | - T Zhang
- Duke University, Durham, USA
| | - A Y Zhou
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, USA
| | - H Zhu
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, USA
| | - L Zubiri
- Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - D P Shah
- Mays Cancer Center at UT Health San Antonio MD Anderson, San Antonio, USA
| | - J L Warner
- Vanderbilt University Medical Center, Nashville, USA
| | - GdL Lopes
- University of Miami/Sylvester Comprehensive Cancer Center, Miami, USA
| |
Collapse
|
5
|
Sala P, Bogliolo S, Barra F, Fazio A, Maramai M, Cassani C, Gardella B, Babilonti L, Giannelli F, Mammoliti S, Spinillo A, Ferrero S, Valenzano Menada M, Costantini S, Bruzzi P, Marchiolè P. Neoadjuvant Chemotherapy Followed by Radical Surgery versus Concurrent Chemo-Radiotherapy in the Treatment of Locally Advanced Cervical Cancer: A Multicenter Retrospective Analysis. J INVEST SURG 2020; 35:308-314. [PMID: 33289585 DOI: 10.1080/08941939.2020.1856239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES This study aims to evaluate oncological outcomes in women affected by locally advanced cervical cancer (LACC) treated by neoadjuvant chemotherapy before radical surgery (NACT + RS) or concurrent chemo-radiotherapy (CCRT). METHODS This was a multicenter retrospective analysis of data related to women with LACC (FIGO stage IB2-IVA), who were treated by NACT + RS or CCRT between November 2006 and January 2018. The first endpoints were the evaluation of disease-free survival (DFS) and overall survival (OS); univariate and multivariate analyses were performed for identifying the prognostic factors independently associated with these oncological outcomes. RESULTS Overall, 106 women were included in the analysis; 55 of them (51.9%) underwent NACT + RS and 51 (48.1%) CCRT, respectively. Patients in the NACT + RS group had a significant better five-year DFS and five-year OS than those in the CCRT group (77.4% vs. 33.4%, p < .001 and 93.8% vs. 56.5%, p = .003). In the multivariate analyses, treatment choice (NACT + RS or CCRT) was the only independent prognostic factor for predicting both DFS (HR = 3.954; 95 CI = 1.898-8.236; p < 0.001) and OS (HR = 5.330; 95 CI = 1.563-18.178; p = 0.008). CONCLUSIONS This retrospective study demonstrated an improved survival outcome for patients undergoing NACT + RS compared with those undergoing CCRT. Our findings seem to support the use of NACT before RS as an effective alternative option to CCRT standard therapy.
Collapse
Affiliation(s)
- Paolo Sala
- Unit of Clinical Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Stefano Bogliolo
- Department of Obstetrics and Gynecology, Service of Medical and Surgical Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.,Department of Gynecologic Oncology, Division of Gynecology, European Institute of Oncology, Milan, Italy
| | - Fabio Barra
- Academic Unit of Clinical Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Alessandra Fazio
- Academic Unit of Clinical Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Mattia Maramai
- Academic Unit of Clinical Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Chiara Cassani
- Department of Obstetrics and Gynecology, Service of Medical and Surgical Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Barbara Gardella
- Department of Obstetrics and Gynecology, Service of Medical and Surgical Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Luciana Babilonti
- Department of Obstetrics and Gynecology, Service of Medical and Surgical Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Flavio Giannelli
- Unit of Radiotherapy, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Serafina Mammoliti
- Unit of Medical Oncology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Arsenio Spinillo
- Department of Obstetrics and Gynecology, Service of Medical and Surgical Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Simone Ferrero
- Academic Unit of Clinical Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Mario Valenzano Menada
- Academic Unit of Clinical Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Sergio Costantini
- Academic Unit of Clinical Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Paolo Bruzzi
- Unit of Clinical Epidemiology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | | |
Collapse
|
6
|
Capogni M, Capone M, Pietropaolo A, Fazio A, Dellepiane G, Falconi R, Colangeli A, Palomba S, Valentini G, Fantuzi M, Faccini R, Pizzuto A. 64Cu production by 14 MeV neutron beam. JNR 2020. [DOI: 10.3233/jnr-190140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
64Cu is an emerging radionuclide of great interest in personalized nuclear medicine. It is produced by a cyclotron via the reaction 64Ni(p,n)64Cu. This production method increased during the last decades, because small biomedical cyclotrons can be easily installed close to the nuclear medicine department of a hospital. As a matter of fact, 64Ni is a very expensive target material. For this reason, an alternative 64Cu production method was investigated at ENEA by using the quasi-monochromatic 14 MeV fusion neutron beam made available at the Frascati Neutron Generator (FNG) located at the ENEA – Frascati Research Center. In particular, two nuclear reactions were studied: 65Cu(n,2n)64Cu and 64Zn(n,p)64Cu. The radiochemical analysis of the activated samples was performed at the ENEA-NMLNWM laboratory located in ENEA-Casaccia Research Center. The activity measurements were carried out at the ENEA-INMRI, located in the ENEA-Casaccia Research Center, with high metrological level conditions and by assuring their traceability to the 64Cu primary activity standard here developed and maintained. A prediction of the 64Cu production by means of the high-brilliance 14 MeV neutron source named Sorgentina is also discussed.
Collapse
Affiliation(s)
- M. Capogni
- ENEA – Italian National Institute of Ionizing Radiation Metrology (INMRI), Casaccia R.C., Via Anguillarese 301, I-00123 Rome, Italy. E-mail:
| | - M. Capone
- ENEA – Nuclear Material characterization Laboratory and Nuclear Waste Management (NMLNWM), Casaccia R.C., Via Anguillarese 301, I-00123 Rome, Italy. E-mail:
| | - A. Pietropaolo
- ENEA – Department of Fusion and Technologies for Nuclear Safety and Security (FSN), Frascati R.C., Via E. Fermi 45 Frascati (Rome), Italy. E-mail:
| | - A. Fazio
- ENEA – Italian National Institute of Ionizing Radiation Metrology (INMRI), Casaccia R.C., Via Anguillarese 301, I-00123 Rome, Italy. E-mail:
| | - G. Dellepiane
- University of Rome “La Sapienza” – Department of Physics, P.le Aldo Moro 2, I-00185, Rome, Italy
- Albert Einstein Center for Fundamental Physics, University of Bern, Sidlestrasse 5, 3012 Bern, Switzerland
| | - R. Falconi
- University of Rome “La Sapienza” – Department of Physics, P.le Aldo Moro 2, I-00185, Rome, Italy
| | - A. Colangeli
- ENEA – Department of Fusion and Technologies for Nuclear Safety and Security (FSN), Frascati R.C., Via E. Fermi 45 Frascati (Rome), Italy. E-mail:
| | - S. Palomba
- University of Rome “La Sapienza” – Department of Physics, P.le Aldo Moro 2, I-00185, Rome, Italy
| | - G. Valentini
- Advanced Center Oncology Macerata (A.C.O.M.) Srl, Località Cavallino, 39/A-B, 62010 Montecosaro (MC), Italy
| | - M. Fantuzi
- Advanced Center Oncology Macerata (A.C.O.M.) Srl, Località Cavallino, 39/A-B, 62010 Montecosaro (MC), Italy
| | - R. Faccini
- University of Rome “La Sapienza” – Department of Physics, P.le Aldo Moro 2, I-00185, Rome, Italy
| | - A. Pizzuto
- ENEA – Department of Fusion and Technologies for Nuclear Safety and Security (FSN), Frascati R.C., Via E. Fermi 45 Frascati (Rome), Italy. E-mail:
| |
Collapse
|
7
|
Brunton JA, Cánovas-Alvarez FJ, Meroño L, Leiva-Arcas A, Arias-Estero JL, Conde E, Isidori E, Decelis A, Samantzis C, Yildiz A, Doğan Yİ, Fazio A, Mallia O, Koustelios A, Sánchez-Pato A. Implementing the European Sports Leadership Programme: A vehicle to help development graduate workplace competencies. jhse 2020. [DOI: 10.14198/jhse.2022.173.07] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
8
|
Capogni M, Pietropaolo A, Quintieri L, Fazio A, De Felice P, Pillon M, Pizzuto A. 99mTc by 99Mo produced at the ENEA-FNG facility of 14MeV neutrons. Appl Radiat Isot 2017; 134:105-107. [PMID: 29066213 DOI: 10.1016/j.apradiso.2017.10.015] [Citation(s) in RCA: 3] [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] [Received: 03/10/2017] [Revised: 10/06/2017] [Accepted: 10/07/2017] [Indexed: 11/26/2022]
Abstract
A severe supply crisis of 99Mo, precursor of 99mTc a diagnostic radionuclide largely used in Nuclear Medicine, occurred in 2008-2009 due to repeated shut-down of the two main (aged) fission reactors. An alternative route for producing 99Mo by 100Mo(n,2n)99Mo reaction was investigated at ENEA. The experiment, designed according to Monte Carlo simulations performed with the Fluka code, produced 99Mo by irradiating a natural Molybdenum powdered target with 14MeV neutrons produced at the Frascati Neutron Generator. The 99Mo specific activity was measured at metrological level by γ-ray spectrometry.
Collapse
Affiliation(s)
- M Capogni
- ENEA - Department of Fusion and Technology for Nuclear Safety and Security, Frascati R.C. Via Enrico Fermi, 45, I-00044 Frascati (Rome), Italy; ENEA - Italian National Institute of Ionizing Radiation Metrology (INMRI), Casaccia R.C. Via Anguillarese, 301, I-00123 Rome, Italy.
| | - A Pietropaolo
- ENEA - Department of Fusion and Technology for Nuclear Safety and Security, Frascati R.C. Via Enrico Fermi, 45, I-00044 Frascati (Rome), Italy
| | - L Quintieri
- ENEA - Department of Fusion and Technology for Nuclear Safety and Security, Frascati R.C. Via Enrico Fermi, 45, I-00044 Frascati (Rome), Italy; ENEA - Italian National Institute of Ionizing Radiation Metrology (INMRI), Casaccia R.C. Via Anguillarese, 301, I-00123 Rome, Italy
| | - A Fazio
- ENEA - Department of Fusion and Technology for Nuclear Safety and Security, Frascati R.C. Via Enrico Fermi, 45, I-00044 Frascati (Rome), Italy; ENEA - Italian National Institute of Ionizing Radiation Metrology (INMRI), Casaccia R.C. Via Anguillarese, 301, I-00123 Rome, Italy
| | - P De Felice
- ENEA - Department of Fusion and Technology for Nuclear Safety and Security, Frascati R.C. Via Enrico Fermi, 45, I-00044 Frascati (Rome), Italy; ENEA - Italian National Institute of Ionizing Radiation Metrology (INMRI), Casaccia R.C. Via Anguillarese, 301, I-00123 Rome, Italy
| | - M Pillon
- ENEA - Department of Fusion and Technology for Nuclear Safety and Security, Frascati R.C. Via Enrico Fermi, 45, I-00044 Frascati (Rome), Italy
| | - A Pizzuto
- ENEA - Department of Fusion and Technology for Nuclear Safety and Security, Frascati R.C. Via Enrico Fermi, 45, I-00044 Frascati (Rome), Italy
| |
Collapse
|
9
|
Ziemek T, Capogni M, Ratel G, Broda R, Dziel T, Fazio A, Listkowska A. Comparison of 131I activity measurements at the NCBJ RC POLATOM and the ENEA-INMRI linked to the BIPM SIR system. Appl Radiat Isot 2017; 134:380-384. [PMID: 29032880 DOI: 10.1016/j.apradiso.2017.09.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 09/08/2017] [Accepted: 09/24/2017] [Indexed: 11/16/2022]
Abstract
A bilateral comparison between ENEA-INMRI (Italy) and NCBJ RC POLATOM (Poland) of 131I-solution activity measurements was organized in the year 2015 and piloted by POLATOM, which provided the sources for the comparison. The 131I master solution was standardized independently at both institutes by using Liquid Scintillation Counting and ionization chamber techniques. The 131I master solution was then sent by POLATOM to the BIPM International Reference System (SIR). The comparison was registered as an EURAMET.RI(II)-K2.I-131 key comparison allowing the ENEA-INMRI result to enter in the SIR database.
Collapse
Affiliation(s)
- T Ziemek
- National Centre for Nuclear Research Radioisotope Centre POLATOM, Otwock, Poland.
| | - M Capogni
- ENEA National Institute of Ionizing Radiation Metrology (ENEA-INMRI), Casaccia Research Centre, Rome, Italy.
| | - G Ratel
- Bureau International des Poids et Mesures (BIPM), Sèvres, France
| | - R Broda
- National Centre for Nuclear Research Radioisotope Centre POLATOM, Otwock, Poland
| | - T Dziel
- National Centre for Nuclear Research Radioisotope Centre POLATOM, Otwock, Poland
| | - A Fazio
- ENEA National Institute of Ionizing Radiation Metrology (ENEA-INMRI), Casaccia Research Centre, Rome, Italy
| | - A Listkowska
- National Centre for Nuclear Research Radioisotope Centre POLATOM, Otwock, Poland
| |
Collapse
|
10
|
Read J, Viswanathan S, Bhatt S, Chaboureau A, Gomez-Aristizabal A, Weston A, Fazio A, Ogilvie-Harris D, Kapoor M, Keating A, Mahomed N, Marshall W, Naraghi A, Chahal J. Human autologous mesenchymal stromal cells for the treatment of mid- to late-stage knee osteoarthritis—preliminary results from a first-in-North America phase I/II study. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
11
|
D’Arienzo M, Cozzella M, Fazio A, De Felice P, Iaccarino G, D’Andrea M, Ungania S, Cazzato M, Schmidt K, Kimiaei S, Strigari L. Quantitative 177 Lu SPECT imaging using advanced correction algorithms in non-reference geometry. Phys Med 2016; 32:1745-1752. [DOI: 10.1016/j.ejmp.2016.09.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/09/2016] [Accepted: 09/16/2016] [Indexed: 11/25/2022] Open
|
12
|
Pommé S, Stroh H, Paepen J, Van Ammel R, Marouli M, Altzitzoglou T, Hult M, Kossert K, Nähle O, Schrader H, Juget F, Bailat C, Nedjadi Y, Bochud F, Buchillier T, Michotte C, Courte S, van Rooy M, van Staden M, Lubbe J, Simpson B, Fazio A, De Felice P, Jackson T, Van Wyngaardt W, Reinhard M, Golya J, Bourke S, Roy T, Galea R, Keightley J, Ferreira K, Collins S, Ceccatelli A, Unterweger M, Fitzgerald R, Bergeron D, Pibida L, Verheyen L, Bruggeman M, Vodenik B, Korun M, Chisté V, Amiot MN. Evidence against solar influence on nuclear decay constants. Phys Lett B 2016; 761:281-286. [PMID: 28057978 PMCID: PMC5207040 DOI: 10.1016/j.physletb.2016.08.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The hypothesis that proximity to the Sun causes variation of decay constants at permille level has been tested and disproved. Repeated activity measurements of mono-radionuclide sources were performed over periods from 200 days up to four decades at 14 laboratories across the globe. Residuals from the exponential nuclear decay curves were inspected for annual oscillations. Systematic deviations from a purely exponential decay curve differ from one data set to another and are attributable to instabilities in the instrumentation and measurement conditions. The most stable activity measurements of alpha, beta-minus, electron capture, and beta-plus decaying sources set an upper limit of 0.0006% to 0.008% to the amplitude of annual oscillations in the decay rate. Oscillations in phase with Earth's orbital distance to the Sun could not be observed within a 10-6 to 10-5 range of precision. There are also no apparent modulations over periods of weeks or months. Consequently, there is no indication of a natural impediment against sub-permille accuracy in half-life determinations, renormalisation of activity to a distant reference date, application of nuclear dating for archaeology, geo- and cosmochronology, nor in establishing the SI unit becquerel and seeking international equivalence of activity standards.
Collapse
Affiliation(s)
- S. Pommé
- European Commission, Joint Research Centre (JRC), Retieseweg 111, B-2440Geel, Belgium
| | - H. Stroh
- European Commission, Joint Research Centre (JRC), Retieseweg 111, B-2440Geel, Belgium
| | - J. Paepen
- European Commission, Joint Research Centre (JRC), Retieseweg 111, B-2440Geel, Belgium
| | - R. Van Ammel
- European Commission, Joint Research Centre (JRC), Retieseweg 111, B-2440Geel, Belgium
| | - M. Marouli
- European Commission, Joint Research Centre (JRC), Retieseweg 111, B-2440Geel, Belgium
| | - T. Altzitzoglou
- European Commission, Joint Research Centre (JRC), Retieseweg 111, B-2440Geel, Belgium
| | - M. Hult
- European Commission, Joint Research Centre (JRC), Retieseweg 111, B-2440Geel, Belgium
| | - K. Kossert
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
| | - O. Nähle
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
| | - H. Schrader
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
| | - F. Juget
- Institut de Radiophysique, Lausanne (IRA), Switzerland
| | - C. Bailat
- Institut de Radiophysique, Lausanne (IRA), Switzerland
| | - Y. Nedjadi
- Institut de Radiophysique, Lausanne (IRA), Switzerland
| | - F. Bochud
- Institut de Radiophysique, Lausanne (IRA), Switzerland
| | - T. Buchillier
- Institut de Radiophysique, Lausanne (IRA), Switzerland
| | - C. Michotte
- Bureau International des Poids et Mesures (BIPM), Pavillon de Breteuil, 92310 Sèvres, France
| | - S. Courte
- Bureau International des Poids et Mesures (BIPM), Pavillon de Breteuil, 92310 Sèvres, France
| | - M.W. van Rooy
- Radioactivity Standards Laboratory (NMISA), 15 Lower Hope Road, Rosebank 7700, Cape Town, South Africa
| | - M.J. van Staden
- Radioactivity Standards Laboratory (NMISA), 15 Lower Hope Road, Rosebank 7700, Cape Town, South Africa
| | - J. Lubbe
- Radioactivity Standards Laboratory (NMISA), 15 Lower Hope Road, Rosebank 7700, Cape Town, South Africa
| | - B.R.S. Simpson
- Radioactivity Standards Laboratory (NMISA), 15 Lower Hope Road, Rosebank 7700, Cape Town, South Africa
| | - A. Fazio
- National Institute of Ionizing Radiation Metrology (ENEA), Casaccia Research Centre, Via Anguillarese, 301—S.M. Galeria I-00060 Roma, C.P. 2400, I-00100 Roma A.D., Italy
| | - P. De Felice
- National Institute of Ionizing Radiation Metrology (ENEA), Casaccia Research Centre, Via Anguillarese, 301—S.M. Galeria I-00060 Roma, C.P. 2400, I-00100 Roma A.D., Italy
| | - T.W. Jackson
- Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee, NSW 2232, Australia
| | - W.M. Van Wyngaardt
- Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee, NSW 2232, Australia
| | - M.I. Reinhard
- Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee, NSW 2232, Australia
| | - J. Golya
- Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee, NSW 2232, Australia
| | - S. Bourke
- Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee, NSW 2232, Australia
| | - T. Roy
- National Research Council of Canada (NRC), 1200 Montreal Road, Ottawa, ON, K1A0R6, Canada
| | - R. Galea
- National Research Council of Canada (NRC), 1200 Montreal Road, Ottawa, ON, K1A0R6, Canada
| | - J.D. Keightley
- National Physical Laboratory (NPL), Hampton Road, Teddington, Middlesex TW11 OLW, UK
| | - K.M. Ferreira
- National Physical Laboratory (NPL), Hampton Road, Teddington, Middlesex TW11 OLW, UK
| | - S.M. Collins
- National Physical Laboratory (NPL), Hampton Road, Teddington, Middlesex TW11 OLW, UK
| | - A. Ceccatelli
- Terrestrial Environment Laboratory, IAEA Environment Laboratories, Department of Nuclear Sciences and Applications, International Atomic Energy Agency (IAEA), Vienna International Centre, PO Box 100, 1400 Vienna, Austria
| | - M. Unterweger
- Physical Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Dr., Gaithersburg, MD 20899-8462, USA
| | - R. Fitzgerald
- Physical Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Dr., Gaithersburg, MD 20899-8462, USA
| | - D.E. Bergeron
- Physical Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Dr., Gaithersburg, MD 20899-8462, USA
| | - L. Pibida
- Physical Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Dr., Gaithersburg, MD 20899-8462, USA
| | - L. Verheyen
- Belgian Nuclear Research Centre (SCK·CEN), Boeretang 200, B-2400 Mol, Belgium
| | - M. Bruggeman
- Belgian Nuclear Research Centre (SCK·CEN), Boeretang 200, B-2400 Mol, Belgium
| | - B. Vodenik
- Jožef Stefan Institute (JSI), Jamova 39, 1000 Ljubljana, Slovenia
| | - M. Korun
- Jožef Stefan Institute (JSI), Jamova 39, 1000 Ljubljana, Slovenia
| | - V. Chisté
- CEA, LIST, Laboratoire National Henri Becquerel (LNHB), Bât. 602 PC 111, CEA-Saclay 91191 Gif-sur-Yvette cedex, France
| | - M.-N. Amiot
- CEA, LIST, Laboratoire National Henri Becquerel (LNHB), Bât. 602 PC 111, CEA-Saclay 91191 Gif-sur-Yvette cedex, France
| |
Collapse
|
13
|
D'Arienzo M, Cozzella M, Fazio A, Cazzato M, Ungania S, Iaccarino G, D'Andrea M, Schmidt K, Kimiaei S, Strigari L. Quantitative 177Lu SPECT imaging using advanced correction algorithms in non-reference geometry. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.356] [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: 11/15/2022] Open
|
14
|
D'Arienzo M, Cozzella M, Fazio A, Ungania S, Cazzato M, Iaccarino G, D'Andrea M, Strigari L, Fenwick A, Cox M, Johansson L, De Felice P. Absolute gamma camera calibration for quantitative SPECT imaging with 177Lu. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.394] [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: 11/29/2022] Open
|
15
|
Michotte C, Nonis M, Alekseev IV, Kharitonov IA, Tereshchenko EE, Zanevskiy AV, Keightley JD, Fenwick A, Ferreira K, Johansson L, Capogni M, Carconi P, Fazio A, De Felice P. Comparison of (18)F activity measurements at the VNIIM, NPL and the ENEA-INMRI using the SIRTI of the BIPM. Appl Radiat Isot 2015; 109:17-23. [PMID: 26682894 DOI: 10.1016/j.apradiso.2015.11.087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
Abstract
In 2014, the first three comparisons of activity measurements of (18)F were carried out at the VNIIM, NPL and the ENEA-INMRI using the BIPM's Transfer Instrument of the International Reference System. The transfer instrument and the NMIs primary measurement methods are briefly described. The degrees of equivalence with the key comparison reference value defined in the frame of the corresponding SIR comparison have been evaluated. World-wide consistency of activity measurements of (18)F is demonstrated.
Collapse
Affiliation(s)
- C Michotte
- Bureau International des Poids et Mesures (BIPM), Sèvres, France.
| | - M Nonis
- Bureau International des Poids et Mesures (BIPM), Sèvres, France
| | - I V Alekseev
- D.I. Mendeleyev Institute for Metrology (VNIIM), Russian Federation
| | - I A Kharitonov
- D.I. Mendeleyev Institute for Metrology (VNIIM), Russian Federation
| | - E E Tereshchenko
- D.I. Mendeleyev Institute for Metrology (VNIIM), Russian Federation
| | - A V Zanevskiy
- D.I. Mendeleyev Institute for Metrology (VNIIM), Russian Federation
| | | | - A Fenwick
- National Physical Laboratory (NPL), United Kingdom
| | - K Ferreira
- National Physical Laboratory (NPL), United Kingdom
| | - L Johansson
- National Physical Laboratory (NPL), United Kingdom
| | - M Capogni
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile-Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (ENEA-INMRI), Italy
| | - P Carconi
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile-Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (ENEA-INMRI), Italy
| | - A Fazio
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile-Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (ENEA-INMRI), Italy
| | - P De Felice
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile-Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (ENEA-INMRI), Italy
| |
Collapse
|
16
|
Ferrante M, Barone R, Fazio A, Zerbo S, Margherita V, Rizzo R, Fichera G, Fiore M. Prevalence and age at diagnosis of Autism Spectrum Disorder in south Italy, 2004–2014. Eur J Public Health 2015. [DOI: 10.1093/eurpub/ckv175.099] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
17
|
D'Anastasio R, Viciano J, Di Nicola M, Cesana DT, Sciubba M, Del Cimmuto M, Paolucci A, Fazio A, Capasso L. Estimation of sex from the hyoid body in skeletal individuals from archeological sites. Homo 2014; 65:311-21. [PMID: 24767538 DOI: 10.1016/j.jchb.2014.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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] [Received: 06/08/2013] [Accepted: 01/29/2014] [Indexed: 10/25/2022]
Abstract
Recent forensic studies have shown that the hyoid bone is a sexually dimorphic element of the human skeleton. Given the advanced techniques of collecting human remains in archeological and forensic contexts, the recovery of hyoid bones is now more frequent in skeletal samples. For that reason the authors propose a new method for estimating sex based on hyoid bodies from archeological sites. The study has been conducted on well-preserved hyoids of skeletal remains of 64 adult individuals (44 males and 20 females) dated from the pre-Roman to the medieval periods. The authors considered 10 linear measurements of the hyoid body. The most significant measurements showing sexual dimorphism are the body height, body length, and the maximum and minimum diameter of the articular facet for the greater horn. Discriminant function analysis achieved the allocation accuracy between 75.0% and 88.0%, depending on the measurement collected. This method represents a new, useful and easy way for increasing biological information when assessing the sex of adult human remains from an archeological sample.
Collapse
Affiliation(s)
- R D'Anastasio
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy
| | - J Viciano
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy.
| | - M Di Nicola
- Laboratory of Biostatistics, Department of Biomedical Science, State University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy
| | - D T Cesana
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy
| | - M Sciubba
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy
| | - M Del Cimmuto
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy
| | - A Paolucci
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy
| | - A Fazio
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy
| | - L Capasso
- University Museum, State University "G. d'Annunzio", Piazza Trento e Trieste 1, 66100 Chieti, Italy
| |
Collapse
|
18
|
Amendola M, Loreti S, Remetti R, Capogni M, Carconi PL, Cozzella ML, De Felice P, Fazio A, Pisacane F. Experimental and Monte Carlo simulation on new manganese bath facility for absolute neutron source emission rate measurement at ENEA-INMRI. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3106-1] [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: 11/30/2022]
|
19
|
Pintaudi B, Di Vieste G, Corrado F, Creazzo MF, Fazio A, Valenti A, D'Anna R, Di Benedetto A. Cardiac diastolic evaluation in pregnant women with abnormal glucose tolerance: an opportunity to detect the early and subclinical alterations and prevent cardiovascular diseases. J Diabetes Res 2013; 2013:486593. [PMID: 24171177 PMCID: PMC3792550 DOI: 10.1155/2013/486593] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 08/10/2013] [Accepted: 08/22/2013] [Indexed: 01/08/2023] Open
Abstract
of this study were to assess diastolic function in pregnant women with abnormal glucose tolerance (AGT), compared with normal glucose tolerance (NGT) women, and to evaluate the insulin resistance status and its association with Doppler-echocardiographic indexes. Echocardiograms of 108 consecutive Caucasian women with singleton pregnancies were performed. Insulin resistance status was estimated by the homeostasis model assessment of insulin resistance (HOMA-IR) and the quantitative insulin sensitivity check index (QUICKI). All the studied women showed normal diastolic patterns. Patients with AGT (50.9%), as compared with NGT women, had higher HOMA-IR (1.70 ± 1.30 versus 1.01 ± 0.81, P = 0.003), lower QUICKI (0.36 ± 0.005 versus 0.40 ± 0.06, P = 0.004), higher lateral mitral annulus late diastolic velocity (13.6 ± 4.9 versus 11.9 ± 4.9, P = 0.03), and higher A-wave velocity, the wave responsible for the active atrial contraction component (75.2 ± 14.2 versus 67.7 ± 16.2, P = 0.01). At multivariate regression analysis HOMA-IR was the only parameter associated with A-wave velocity. In conclusion, women with AGT had an increased subclinical diastolic active participation, which is associated with higher levels of insulin resistance. For the increased risk of deterioration of cardiac diastolic function, earlier and more seriously than normal pregnancy, AGT women may have a careful followup to detect the early signs of cardiac alteration and to prevent cardiovascular diseases.
Collapse
Affiliation(s)
- B. Pintaudi
- Department of Internal Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
- *B. Pintaudi:
| | - G. Di Vieste
- Department of Internal Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - F. Corrado
- Department of Obstetrics and Gynecology, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - M. F. Creazzo
- Department of Internal Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - A. Fazio
- Department of Internal Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - A. Valenti
- Department of Pathology and Experimental Micropathology, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - R. D'Anna
- Department of Obstetrics and Gynecology, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - A. Di Benedetto
- Department of Internal Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| |
Collapse
|
20
|
Capogni M, Cozzella ML, De Felice P, Fazio A. Comparison between two absolute methods used for 177Lu activity measurements and its standardization. Appl Radiat Isot 2012; 70:2075-80. [PMID: 22464789 DOI: 10.1016/j.apradiso.2012.02.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Accepted: 02/19/2012] [Indexed: 11/19/2022]
Abstract
A (177)Lu primary standard was developed at the ENEA-INMRI in the frame of an international comparison organized by BIPM and piloted by NIST (USA). The CIEMAT/NIST method with (3)H standard source as tracer was used for standardizing a solution of (177)Lu. The activity value was compared also with the measurements of the same mother solution carried out by the 4πγ integral counting method. Particular efforts were made to identify and quantify the long-lived (177m)Lu impurity in the mother solution. The results obtained by the two methods are in good agreement within their standard uncertainties. The arithmetic mean of the two values is in good agreement with the Comparison Reference Value (CRV). By the new primary standard two well-type ionization chambers (ICs), one fixed and the other one portable, were calibrated with an uncertainty lower than 2%. These ICs are used for routinely applications in the activity measurements of short-lived radionuclides particularly useful for medical applications.
Collapse
Affiliation(s)
- M Capogni
- ENEA Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (INMRI), Centro Ricerche Casaccia, I-00123 Rome, Italy.
| | | | | | | |
Collapse
|
21
|
Lépy MC, Altzitzoglou T, Anagnostakis MJ, Capogni M, Ceccatelli A, De Felice P, Djurasevic M, Dryak P, Fazio A, Ferreux L, Giampaoli A, Han JB, Hurtado S, Kandic A, Kanisch G, Karfopoulos KL, Klemola S, Kovar P, Laubenstein M, Lee JH, Lee JM, Lee KB, Pierre S, Carvalhal G, Sima O, Tao CV, Thanh TT, Vidmar T, Vukanac I, Yang MJ. Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry--part II (volume sources). Appl Radiat Isot 2012; 70:2112-8. [PMID: 22445105 DOI: 10.1016/j.apradiso.2012.02.079] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 02/20/2012] [Indexed: 11/16/2022]
Abstract
The second part of an intercomparison of the coincidence summing correction methods is presented. This exercise concerned three volume sources, filled with liquid radioactive solution. The same experimental spectra, decay scheme and photon emission intensities were used by all the participants. The results were expressed as coincidence summing corrective factors for several energies of (152)Eu and (134)Cs, and different source-to-detector distances. They are presented and discussed.
Collapse
Affiliation(s)
- M-C Lépy
- Laboratoire National Henri Becquerel (LNE-LNHB), CEA, LIST, F-91191 Gif-sur-Yvette cedex, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Abstract
Pituitary lactotrophs secrete prolactin. This process is enhanced by estrogen and inhibited by dopamine. Prolactinomas are benign neoplasms that rarely increase in size and are classified according to size as microadenomas (<10 mm diameter) or macroadenomas (>10 mm diameter). The clinical features of prolactinomas most commonly result from prolactin's effect on the gonads and breast in women and from mass effect in men. This review details the clinical features and management of patients with prolactinomas.
Collapse
Affiliation(s)
- Farshad Nassiri
- a Department of Surgery, Division of Neurosurgery, St Michael's Hospital, University of Toronto, ON, Canada
| | - Michael D Cusimano
- a Department of Surgery, Division of Neurosurgery, St Michael's Hospital, University of Toronto, ON, Canada
| | - Bernd W Scheithauer
- b Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN, USA
| | - Fabio Rotondo
- c Department of Laboratory Medicine, Division of Pathology, 30 Bond Street, St Michael's Hospital, Toronto, ON, M5B 1W8, Canada
- f Department of Laboratory Medicine, Division of Pathology, 30 Bond Street, St Michael's Hospital, Toronto, ON, M5B 1W8, Canada.
| | - Alessandra Fazio
- a Department of Surgery, Division of Neurosurgery, St Michael's Hospital, University of Toronto, ON, Canada
| | - Luis V Syro
- d Department of Neurosurgery, Clinica Medellin & Hospital Pablo Tobon Uribe, Medellin, Colombia
| | - Kalman Kovacs
- c Department of Laboratory Medicine, Division of Pathology, 30 Bond Street, St Michael's Hospital, Toronto, ON, M5B 1W8, Canada
| | - Ricardo V Lloyd
- e Department of Pathology & Laboratory Medicine, University of Wisconsin Hospital & Clinics, Madison, WI, USA
| |
Collapse
|
23
|
Nassiri F, Cusimano MD, Scheithauer BW, Rotondo F, Fazio A, Yousef GM, Syro LV, Kovacs K, Lloyd RV. Endoglin (CD105): a review of its role in angiogenesis and tumor diagnosis, progression and therapy. Anticancer Res 2011; 31:2283-2290. [PMID: 21737653] [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: 05/31/2023]
Abstract
Endoglin (CD105) is an accessory receptor for transforming growth factor beta (TGF-β) and its expression is up-regulated in actively proliferating endothelial cells. Endoglin has been suggested as an appropriate marker for tumor-related angiogenesis and neovascularization. Several studies demonstrate the potential of endoglin in tumor diagnosis, prognosis, and therapy. This review details the structure and function of endoglin, and investigates the role of endoglin in angiogenesis and tumor diagnosis, prognosis, and therapy.
Collapse
Affiliation(s)
- Farshad Nassiri
- Department of Laboratory Medicine, St. Michael's Hospital, University of Toronto, 30 Bond Street, Toronto, Ontario, M5B1W8, Canada
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Capogni M, Lo Meo S, Fazio A. Simulation of radioactive decay in GEANT Monte Carlo codes: Comparison between spectra and efficiencies computed with sch2for and G4RadioactiveDecay. Appl Radiat Isot 2010; 68:1428-32. [DOI: 10.1016/j.apradiso.2009.12.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
25
|
Lépy MC, Altzitzoglou T, Anagnostakis M, Arnold D, Capogni M, Ceccatelli A, De Felice P, Dersch R, Dryak P, Fazio A, Ferreux L, Guardati M, Han J, Hurtado S, Karfopoulos K, Klemola S, Kovar P, Lee K, Ocone R, Ott O, Sima O, Sudar S, Švec A, Van Tao C, Thanh TT, Vidmar T. Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry. Appl Radiat Isot 2010; 68:1407-12; discussion 1412. [DOI: 10.1016/j.apradiso.2010.01.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
26
|
Abstract
This article examines the relationship between substance use and gender, sexuality, ethnicity, and nativity among 250 Asian American youths involved in the dance club/rave scene. We find distinct patterns of drug use differing by country of origin and ethnicity. However, contrary to some literature we do not find significant differences corresponding to immigration status, or number of years in the U.S. The most significant differences between subgroups are related to gender and sexuality: male respondents consume more drugs, more frequently than female respondents, and non-heterosexual respondents consume more than heterosexual respondents, with differing patterns for men's and women's sexual subgroups. There were also significant gender and sexuality differences with respect to the contexts in which respondents consume drugs, with the most significant differences being between heterosexual and non-heterosexual men. As we discuss, these findings illustrate the need for further investigation of drug use patterns of gender and sexuality within Asian American communities.
Collapse
Affiliation(s)
- A Fazio
- Institute for Scientific Analysis, 1150 Ballena Blvd, #211, Alameda, CA. 94501., Tel: 510 865 6225
| | | | | | | |
Collapse
|
27
|
Abstract
A set of 60 spiked simulated air filter sources was developed for the 2004-2005 proficiency test of the Italian radioactivity surveillance network. Each simulated filter source was prepared by reproducible volumetric dispensing of 19 drops of a mixed radioactive solution containing Co-57, Cs-134, Cs-137, Co-60 and Eu-152. The spiking pattern was investigated and optimized by numerical simulations. The filter sources were checked by double counting on HPGe and NaI(Tl) detectors. The standard deviation (SD) of activity values was 1.5%.
Collapse
Affiliation(s)
- A Ceccatelli
- ENEA, Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (INMRI), Centro Ricerche Casaccia, Rome, Italy
| | | | | |
Collapse
|
28
|
Nasca MR, Pasquale RD, Amodeo S, Fazio A, Tedeschi A, Micali G. Treatment of Hailey–Hailey disease with oral erythromycin. J DERMATOL TREAT 2009. [DOI: 10.1080/09546630050517234] [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: 10/16/2022]
|
29
|
Capogni M, De Felice P, Fazio A, Latini F, Abbas K. Development of a primary standard for calibration of 64Cu activity measurement systems. Appl Radiat Isot 2008; 66:948-53. [DOI: 10.1016/j.apradiso.2008.02.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
30
|
Ceccatelli A, Benassi M, D'Andrea M, De Felice P, Fazio A, Nocentini S, Strigari L. Experimental determination of calibration settings of a commercially available radionuclide calibrator for various clinical measurement geometries and radionuclides. Appl Radiat Isot 2007; 65:120-5. [PMID: 16996744 DOI: 10.1016/j.apradiso.2006.06.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2005] [Revised: 06/01/2006] [Accepted: 06/29/2006] [Indexed: 11/25/2022]
Abstract
Following the approach of the National Primary Laboratory of the UK (NPL) for the calibration of radionuclide calibrators, but using a commercially available instrument with no data available in the literature, the radionuclide calibrator response was investigated as a function of different measurement geometries at the "Regina Elena" National Cancer Institute (IRE) in Rome. Working with Italian National Metrology Institute for ionising radiation quantities (ENEA-INMRI), specific calibration factors with traceability to national primary standards were determined for different types of glass vials, solid capsules and plastic syringes, investigating three radionuclides with different energy spectra (Tc-99m, In-111, I-131). For each kind of syringe, calibration correction factors for different filling volumes were calculated. For Tc-99m and I-131 the difference between measured and true activity was in the range 2-7%, depending on measurement geometry. For In-111 a large percentage deviation from the true activity value was found in each geometry considered, reaching 35%. The magnitude of this difference is particularly dependent on the energies of the emitted photons.
Collapse
Affiliation(s)
- A Ceccatelli
- Laboratorio di Fisica Medica e Sistemi Esperti, Regina Elena National Cancer Institute, via E. Chianesi, 53 - 00144 Rome, Italy.
| | | | | | | | | | | | | |
Collapse
|
31
|
Abstract
The sum-peak counting method was applied for 125I absolute activity measurement. Count rate-dependent corrections for random summing and dead time effects were experimentally determined at different count rates and in several experimental conditions. Two NaI(Tl) crystals of different volumes were used. They were connected to pulse recording systems with different characteristics, with or without pile-up rejection live-time corrector circuits (PUR/LTC). A theoretical model was proposed to explain the different behaviours found experimentally. It is shown that count rate-dependent effects are drastically reduced by the use of PUR/LTC.
Collapse
Affiliation(s)
- M Capogni
- ENEA-Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti via Anguillarese, 301-I-00100 Rome, Italy.
| | | | | | | |
Collapse
|
32
|
Abstract
When close-geometry detector calibration is required in gamma-ray spectrometry, single-line emitters are usually used in order to avoid true coincidence summing effects. We managed to overcome this limitation by developing a method for the determination of the efficiency of p-type HPGe detectors in close-geometry with a calibrated Cs-134 point source. No separate determination of coincidence summing correction factors is required and a single measurement furnishes the full-energy-peak efficiencies in the 475-1365 keV energy range.
Collapse
Affiliation(s)
- P DeFelice
- EC Joint Research Centre Ispra, I-21020 Italy
| | | | | | | |
Collapse
|
33
|
Anagnostakis MJ, Bolzan C, De Felice P, Fazio A, Grisanti G, Risica S, Turtiainen T, van der Graaf E. A preliminary intercomparison of gamma-ray spectrometry on building materials. Appl Radiat Isot 2004; 61:381-8. [PMID: 15177375 DOI: 10.1016/j.apradiso.2004.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [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: 11/21/2022]
Abstract
A preliminary intercomparison on gamma-ray spectrometry determination of natural radionuclides in building materials was carried out in 1999-2002. Samples measured were fly ash, sand and tuff. Laboratories used different experimental equipment and procedures. Corrections for blank, spectral interference, self-absorption and coincidence summing effects were applied in most cases. The agreement between results was within 15-20%, most often within the reported uncertainties. Several general conclusions can be drawn regarding procedures correctness, uncertainty budget, secular equilibrium condition, and radionuclide representativeness in each natural series. Further studies are needed to draw more specific conclusions.
Collapse
Affiliation(s)
- M J Anagnostakis
- National Technical University of Athens, Nuclear Engineering Section, School of Mechanical Engineering, 15780, Greece.
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Sahagia M, Ivan C, Grigorescu EL, Capogni M, De Felice P, Fazio A. Standardization of 65Zn by 4πPC-γ coincidence counting method with efficiency extrapolation. Appl Radiat Isot 2004; 60:423-7. [PMID: 14987679 DOI: 10.1016/j.apradiso.2003.11.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 10/26/2022]
Abstract
A 65Zn solution was standardized by the 4piPC-gamma efficiency-extrapolation coincidence counting method. Theoretical aspects of coincidence equations, efficiency equations and linearity conditions are reviewed. Experimental measurements were performed for two low level discrimination thresholds for the PC channel (counting K+L or K X-rays or Auger electrons from EC decay) and for three different settings of the gamma window. Requirements on gamma channel set-up for linear extrapolation were established by using a Pb absorber or by proper gamma window setting. The measured activity values were discussed and found in good agreement with those obtained with a calibrated ionization chamber.
Collapse
Affiliation(s)
- Maria Sahagia
- National Institute of R&D for Physics and Nuclear Engineering Horia Hulubei, IFIN-HH, POB MG-6, Bucharest RO-76900, Romania.
| | | | | | | | | | | |
Collapse
|
35
|
Abstract
In Noirmoutier, a French island off the Atlantic coast, secondary effluents flow into a series of four lagoons, 1.4-2.8 m deep, and are reused for agricultural irrigation. The excess water is disposed of to the sea. The aim of this study was to provide a model capable of predicting the microbiological quality of the water pumped for irrigation or discharged to the sea. Meteorological variables, flow rates, physical-chemical characteristics and faecal coliform (FC) contents were monitored for a year and a half. The hydraulic pattern of each lagoon was assumed to be that of completely mixed reactor because of the calculated dispersion numbers and the wind mixing effect. Coliform decay was assumed to follow first order kinetics in each lagoon. Die-off coefficients were calculated in each lagoon using a non-steady-state model. The main bacterial removal mechanism was shown to be solar irradiation. Empirical equations were established to calculate die-off coefficients as a function of received solar energy and temperature. FC die-off rates were higher in the first lagoon and then decreased successively in those following. FC numbers in the different lagoons were predicted with reasonable accuracy in spite of high variation in inlet water quality. The model will facilitate the prediction of water quality under various climatic conditions and different water reuse scenarios and will help to optimise reclamation and storage facilities.
Collapse
Affiliation(s)
- P Xu
- Hydrosciences, MSE, UMR 5569, Université Montpellier II, France
| | | | | |
Collapse
|
36
|
Xu P, Valette F, Brissaud F, Fazio A, Lazarova V. Technical-economic modelling of integrated water management: wastewater reuse in a French island. Water Sci Technol 2001; 43:67-74. [PMID: 11436805] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
An integrated technical-economic model is used to address water management issues in the French island of Noirmoutier. The model simulates potable water production and supply, potable and non potable water demand and consumption, wastewater collection, treatment and disposal, water storage, transportation and reuse. A variety of water management scenarios is assessed through technical, economic and environmental evaluation. The scenarios include wastewater reclamation and reuse for agricultural and landscape irrigation as well as domestic non potable application, desalination of seawater and brackish groundwater for potable water supply. The study shows that, in Noirmoutier, wastewater reclamation and reuse for crop irrigation is the most cost-effective solution to the lack of water resources and the protection of sensitive environment. Some water management projects which are regarded as having less economic benefit in the short-term may become competitive in the future, as a result of tightened environmental policy, changed public attitudes and advanced water treatment technologies. The model provides an appropriate tool for water resources planning and management.
Collapse
Affiliation(s)
- P Xu
- UMR 5569, Université Montpellier II, Case 57, 34095 Montpellier, France
| | | | | | | | | |
Collapse
|
37
|
Chiozzi P, Fazio A, Pasquale V, Verdoya M. Laboratory application of NaI(Tl) gamma-ray spectrometry to studies of natural radioactivity in geophysics. Appl Radiat Isot 2000; 53:127-32. [PMID: 10879850 DOI: 10.1016/s0969-8043(00)00123-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We implemented a laboratory apparatus based on a NaI(TI) gamma-ray spectrometer for the assessment of naturally occurring radioactive materials. This apparatus is devoted to the quantitative determination of U, Th and K in rock and soil samples. We analysed the calibration procedures with particular emphasis to factors which affect accuracy and detection limits. A first series of measurements were compared to those obtained by means of high energy gamma-ray spectrometry. A discussion was made on factors restricting the approach based on scintillation spectrometry, such as secular equilibrium and radon encapsulation.
Collapse
Affiliation(s)
- P Chiozzi
- Dipartimento per lo Studio del Territorio e delle sue Risorse, Settore di Geofisica, Universita di Genova, Italy
| | | | | | | |
Collapse
|
38
|
Gualdrini G, Battisti P, Biagini R, De Felice P, Fazio A, Ferrari P. Development and characterisation of a head calibration phantom for in vivo measurements of actinides. Appl Radiat Isot 2000; 53:387-93. [PMID: 10879891 DOI: 10.1016/s0969-8043(00)00174-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 10/18/2022]
Abstract
The investigation of actinides' internal contamination in human body makes use of a variety of techniques. In large scale screening the technique of "in vivo" evaluation of bone 241Am burden via the determination of the nuclide activity in the skull is often used. For this purpose, adequate calibration procedures and standard phantoms are needed. The present paper summarises the studies and technical procedures followed for the development of a calibration phantom based on a commercial Alderson angiographic head in which a set of 24 241Am point sources were embedded. A theoretical study was first carried out, at the ENEA Institute for Radiation Protection, using the MCNP4-B Monte Carlo code to determine the point source distribution that closely approximates a homogeneous bone contamination. The numerical models were also used to evaluate the resulting degree of approximation. The point sources were prepared at the ENEA National Metrology Institute for ionising radiation quantities and were traceable to the Italian national standard of radionuclide activity. The sources were prepared by quantitatively dispensing a liquid solution onto a plastic disc. The activity of each source was checked by gamma-ray spectrometry and the reproducibility of the activity values was determined. Each source was then placed in the optimum position in the skull, given by the Monte Carlo modelling, by a precision mechanical device. The phantom was finally used to calibrate a whole body counter operating at the ENEA Institute for Radiation Protection. The paper reports the main theoretical and experimental aspects of this work, and also discusses the results of the first calibrations.
Collapse
Affiliation(s)
- G Gualdrini
- Ente Nazionale per le Nuove Tecnologie, l'Energia e l'Ambiente, Istituto per la Radioprotezione v. Dei Colli 16 I, Bologna, Italy.
| | | | | | | | | | | |
Collapse
|
39
|
Abstract
Simplified and fast procedures for coincidence-summing correction in gamma-ray spectrometry were investigated. These procedures are based on the usual theoretical expressions of the correction factors, but differ in the determination of the total efficiency curve based on the following approximations: (a) replacement, below the knee efficiency value, of the total efficiency by the full-energy peak efficiency; and (b) use of linear interpolations (in log-log plot) between only two experimental points above the knee efficiency value; or (c) assumption of a peak-to-total efficiency ratio independent on the counting geometry; or (d) assumption of a constant relation between the peak-to-total efficiency ratios and the photoelectric-to-total cross section ratios. The above approximations were separately assumed for determination of the coincidence-summing correction factors for nuclides with complex decay scheme (133Ba, 134Cs, 152Eu) and for 60Co and 88Y measured on a 15% relative efficiency p-type coaxial HPGe detector, for three source-detector geometries: point source placed on top of and at 10 cm from the detector window, and 1 l Marinelli beaker filled with aqueous solution. The results were compared with those based on more accurate experimental determinations of the total efficiency curve from measurements of standard sources of eight different single-gamma-ray emitters. The usefulness of each simplified procedure is evaluated with respect to its accuracy and to the reduction of the number of standard sources and measurement time.
Collapse
|
40
|
Avenoso A, Facciolà G, Campo GM, Fazio A, Spina E. Determination of clozapine, desmethylclozapine and clozapine N-oxide in human plasma by reversed-phase high-performance liquid chromatography with ultraviolet detection. J Chromatogr B Biomed Sci Appl 1998; 714:299-308. [PMID: 9766870 DOI: 10.1016/s0378-4347(98)00202-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An isocratic high-performance liquid chromatography (HPLC) method with ultraviolet detection for the simultaneous determination of clozapine and its two major metabolites in human plasma is described. Analytes are concentrated from alkaline plasma by liquid-liquid extraction with n-hexane-isoamyl alcohol (75:25, v/v). The organic phase is back-extracted with 150 microl of 0.1 M dibasic phosphate (pH 2.2 with 25% H3PO4). Triprolidine is used as internal standard. For the chromatographic separation the mobile phase consisted of acetonitrile-0.06 M phosphate buffer, pH 2.7 with 25% phosphoric acid (48:52, v/v). Analytes are eluted at a flow-rate of 1.0 ml/min, separated on a 250 x 4.60 mm I.D. analytical column packed with 5 microm C6 silica particles, and measured by UV absorbance detection at 254 nm. The separation requires 7 min. Calibration curves for the three analytes are linear within the clinical concentration range. Mean recoveries were 92.7% for clozapine, 82.0% for desmethylclozapine and 70.4% for clozapine N-oxide. C.V. values for intra- and inter-day variabilities were < or = 13.8% at concentrations between 50 and 1000 ng/ml. Accuracy, expressed as percentage error, ranged from -19.8 to 2.8%. The method was specific and sensitive with quantitation limits of 2 ng/ml for both clozapine and desmethylclozapine and 5 ng/ml for clozapine N-oxide. Among various psychotropic drugs and their metabolites, only 2-hydroxydesipramine caused significant interference. The method is applicable to pharmacokinetic studies and therapeutic drug monitoring.
Collapse
Affiliation(s)
- A Avenoso
- Institute of Pharmacology, School of Medicine, University of Messina, Italy
| | | | | | | | | |
Collapse
|
41
|
Adsley I, Andrew D, Arnold D, Bojanowski R, Bourlat Y, Byrne A, Crespo MT, Desmond J, de Felice P, Fazio A, Gascón J, Grieve R, Holmes A, Jerome S, Korun M, Magnoni M, Odell K, Popplewell D, Poupaki I, Sutton G, Toole J, Wakerley M, Wershofen H, Woods M, Youngman M. The characterisation of an intertidal sediment from the Cumbrian coastline. Appl Radiat Isot 1998. [DOI: 10.1016/s0969-8043(97)10063-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
42
|
Fazio A, Hynes JE, Keefe JJ. Retention of patients with a diagnosis of diabetes in selected managed care plans. Manag Care Interface 1998; 11:68-72. [PMID: 10181563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
This study was designed to determine the extent of retention of patients in staff-model HMOs. Study groups with Type II diabetes were compared with a control group without diabetes. Each study group (three groups of approximately 400 patients, drawn from three MCOs) was enrolled in a staff-model HMO in 1990. Patients were then followed for five consecutive years through 1995. The age- and gender-matched control groups (approximately 400 patients randomly selected from each of the three MCOs) were identified from managed care plan enrollees without a diagnosis of diabetes. It was found that the retention rates of patients with diabetes are higher than those without diabetes in two plans. For the third plan, the retention rates among patients with diabetes were the same as the control group's. The first year of enrollment was found to be the most important predictor of patient retention. The findings of this study strongly suggest plans seek methods to optimize treatments and delay the natural history, morbidity, and exacerbations associated with diabetes, since there is a higher probability that these patients will be members in the future.
Collapse
|
43
|
|
44
|
Albertó E, Fazio A, Wright JE. Reevaluation of Hohenbuehelia nigra and species with close affinities. Mycologia 1998. [DOI: 10.1080/00275514.1998.12026891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- E. Albertó
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Ciencias Biológicas, Ciudad Universitaria, Pab. II, 1428 Buenos Aires, Argentina
| | - A. Fazio
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Ciencias Biológicas, Ciudad Universitaria, Pab. II, 1428 Buenos Aires, Argentina
| | - J. E. Wright
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Ciencias Biológicas, Ciudad Universitaria, Pab. II, 1428 Buenos Aires, Argentina
| |
Collapse
|
45
|
Abstract
The effect of ketoconazole (200 mg/d orally for 10 days) on the plasma concentrations of carbamazepine (CBZ) and its active metabolite carbamazepine-10,11-epoxide (CBZ-E) was assessed in eight patients with epilepsy stabilized on CBZ therapy. Administration of ketoconazole was associated with a significant increase in plasma CBZ concentrations (from 5.6 +/- 1.9 to 7.2 +/- 2.9 micrograms/ml on day 10 [means +/- SD, P < 0.02]), whereas plasma concentrations of CBZ-E were unchanged. After ketoconazole was discontinued, plasma CBZ levels decreased to pretreatment values. This interaction was probably mediated by an inhibiting action of ketoconazole on cytochrome CYP3A4, the main enzyme responsible for CBZ metabolism.
Collapse
Affiliation(s)
- E Spina
- Institute of Pharmacology, University of Messina, Italy
| | | | | | | | | | | |
Collapse
|
46
|
Fazio A. Stepped-care to hypertension therapy. J Pract Nurs 1995; 45:44-55. [PMID: 7602549] [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: 05/21/2023]
|
47
|
Yamreudeewong W, Henann NE, Fazio A, Lower DL, Cassidy TG. Drug-food interactions in clinical practice. J Fam Pract 1995; 40:376-384. [PMID: 7699352] [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] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Drug-food interactions are a significant problem in clinical practice. Foods may alter the effects of drugs by interfering with pharmacokinetic processes, such as absorption and elimination. For example, absorption of tetracyclines is decreased when taken with milk or other dairy products. Pharmacologic and pharmacodynamic mechanisms also play an important role in drug-food interactions by altering drug effects. An example is the interaction of warfarin sodium with leafy green vegetables, whereby the hypoprothrombinemic effect of warfarin may be decreased and thromboembolic complications may develop. Similarly, certain drugs may have an effect on food intake, absorption, metabolism, and utilization. Numerous drugs, such as antineoplastic agents, have been shown to suppress appetite, resulting in decreased food intake and nutritional deficiency. It is important that health care providers, such as physicians, pharmacists, and dietitians, recognize and work as a team to prevent significant drug-food interactions. Minimizing adverse drug-food interactions would improve patient care by optimizing therapeutic effects and maintaining proper nutritional status.
Collapse
|
48
|
Pisani F, Xiao B, Fazio A, Spina E, Perucca E, Tomson T. Single dose pharmacokinetics of carbamazepine-10,11-epoxide in patients on lamotrigine monotherapy. Epilepsy Res 1994; 19:245-8. [PMID: 7698101 DOI: 10.1016/0920-1211(94)90068-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [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: 01/26/2023]
Abstract
The pharmacokinetics of a single oral dose of carbamazepine-10,11-epoxide (CBZ-E, 100 mg) were compared in 10 patients on chronic monotherapy with lamotrigine (LTG, 200-300 mg/day) and in 10 drug-free healthy control subjects. CBZ-E pharmacokinetic parameters in LTG-treated patients were found to be similar to those observed in controls (half-life: 7.2 +/- 1.6 vs 6.1 +/- 0.9 h; apparent oral clearance: 110.8 +/- 53.1 vs 120.5 +/- 29.9 ml/h/kg; apparent volume of distribution: 1.08 +/- 0.37 vs 1.04 +/- 0.25 l/kg respectively; means +/- s.d.). These data indicate that, contrary to previous suggestions, LTG has no effect on the metabolic disposition of CBZ-E.
Collapse
Affiliation(s)
- F Pisani
- Neurological Clinic, University of Messina, Italy
| | | | | | | | | | | |
Collapse
|
49
|
Pisani F, Fazio A, Oteri G, Artesi C, Xiao B, Perucca E, Di Perri R. Effects of the antidepressant drug viloxazine on oxcarbazepine and its hydroxylated metabolites in patients with epilepsy. Acta Neurol Scand 1994; 90:130-2. [PMID: 7801739 DOI: 10.1111/j.1600-0404.1994.tb02692.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [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: 01/27/2023]
Abstract
The effects of Viloxazine (VLX, 100 mg b.i.d. for 10 days) on the steady-state plasma concentrations of Oxcarbazepine (OXC), its active metabolite 10, 11-dihydro-10-hydroxy-carbazepine (MHD) and the corresponding diol (DHD) were studied in a randomized, double-blind cross-over placebo-controlled trial in 6 epileptic patients stabilized on a fixed dosage of OXC. Administration of VLX resulted in an 11% increase in the plasma concentration of MHD (p = 0.003) associated with a 31% fall in DHD levels (p = 0.0001). Plasma concentrations of unchanged OXC were unaffected by VLX. No changes in seizure frequency nor signs of drug toxicity were observed during the study. Although VLX may inhibit the conversion of MHD to the inactive diol, the interaction is unlikely to be of clinical significance.
Collapse
Affiliation(s)
- F Pisani
- Institute of Neurological and Neurosurgical Sciences, University of Messina, Italy
| | | | | | | | | | | | | |
Collapse
|
50
|
Abstract
Fourteen children (6 M, 8 F) suffering from refractory epilepsy received LTG as add-on therapy. LTG was administered twice daily at dosages increasing up to 2 mg/kg/day (for patients taking VPA) or to 10 mg/kg/day for patients taking AEDs that induce hepatic metabolism. The drug was withdrawn for side effects in 3 cases (rash: two cases, hirsutism: one), because of increased seizure frequency in 2 cases and because of unchanged seizure frequency in one. One patient died from acute respiratory failure, after repeated respiratory tract infections. A decrease in seizure frequency after one year of treatment with LTG was observed in 6 of the 7 patients who completed the study. The median total seizure frequency decreased from 10.7 +/- 7.3 to 3.8 +/- 4.6 seizures per day. At the end of the study, seizure frequency had decreased by more than 50% in 2 patients, by more than 75% in 2 patients, and 2 patients were seizure-free; in the remaining patient seizure frequency was unchanged. The best results were obtained with plasma LTG concentrations ranging from 0.5 to 5.4 micrograms/ml; no further improvement was observed at higher LTG concentrations.
Collapse
Affiliation(s)
- D Battino
- Neurological Institute C. Besta, Milan, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|