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Claudiani S, Chee L, Fernando F, Brown L, Achandira UM, Khan A, Rothwell K, Hayden C, Koutsavlis I, Hannah G, Innes A, Apperley JF, Milojkovic D. Treatment-free remission in CML patients with additional chromosome abnormalities in the Philadelphia-positive clone or variant Philadelphia translocations. Am J Hematol 2024; 99:1172-1174. [PMID: 38436141 DOI: 10.1002/ajh.27278] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024]
Abstract
Probability of treatment-free remission (TFR) in CML patients with additional chromosomal abnormalities (ACA) in the Philadelphia-positive clone or variant Philadelphia translocations (ACA/Var-Ph group, blue panel), in those with no cytogenetic abnormality other than the classical Philadelphia translocation (c-Ph group, green panel) and in the subgroups of CML patients with high-risk ACA (HR-ACA, yellow panel) and Var-Ph (red panel).
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Affiliation(s)
- Simone Claudiani
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Lynette Chee
- Department of Clinical Haematology, Peter MacCallum Cancer Centre and the Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Fiona Fernando
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Loretta Brown
- Department of Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Udayakumar M Achandira
- Department of Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Afzal Khan
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Kate Rothwell
- Department of Clinical Haematology, Leeds Teaching Hospital NHS Trust, Leeds, UK
| | - Chloe Hayden
- Imperial Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | | | - Guy Hannah
- King's College Hospital NHS Foundation Trust, Department of Haematological Medicine, London, UK
| | - Andrew Innes
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Jane F Apperley
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Dragana Milojkovic
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
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2
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Claudiani S, Chughtai F, Khan A, Hayden C, Fernando F, Khorashad J, Orovboni V, Scandura G, Innes A, Apperley JF, Milojkovic D. Long-term outcomes after upfront second-generation tyrosine kinase inhibitors for chronic myeloid leukemia: managing intolerance and resistance. Leukemia 2024; 38:796-802. [PMID: 38424138 PMCID: PMC10997507 DOI: 10.1038/s41375-024-02187-w] [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: 09/29/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
Second-generation tyrosine kinase inhibitors (2GTKI) are more effective in inducing rapid molecular responses than imatinib when used first-line in patients with chronic myeloid leukemia in chronic phase (CML-CP). However, failure of first line-2GTKI (1L-2GTKI) still occurs and there is no consensus regarding subsequent management. We retrospectively analyzed the outcome of 106 CML-CP patients treated with 1L-2GTKI and with a median follow-up of 91 months. 45 patients (42.4%) switched to an alternative TKI, 28 for intolerance (26.4%) and 17 (16%) for resistance. Most patients who remained on 1L-2GTKI achieved deep molecular responses (DMR) and 15 (14.1%) are in treatment-free remission (TFR). Intolerant patients also obtained DMR, although most required multiple TKI changes and were slower to respond, particularly if treated with 2L-imatinib. Inferior outcomes were observed in resistant patients, who failed alternative 2L-2GTKI and required 3/4GTKI and/or allogeneic hematopoietic stem cell transplant (alloSCT). 7yr-OS was significantly lower for these individuals (66.1%) than for intolerant patients and those who remained on 1L-2GTKI (100% and 97.9%, respectively; p = 0.001). It is apparent that failure of 1L-2GTKI is a challenging problem in modern CML therapy. Intolerance can be effectively managed by switching to an alternative 2GTKI, but resistance requires early consideration of 3/4GTKI.
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Affiliation(s)
- Simone Claudiani
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK.
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK.
| | - Farhan Chughtai
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Afzal Khan
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Chloe Hayden
- Imperial Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Fiona Fernando
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Jamshid Khorashad
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Victoria Orovboni
- Imperial Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Glenda Scandura
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Andrew Innes
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Jane F Apperley
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Dragana Milojkovic
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
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3
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Fernando F, Innes AJ, Claudiani S, Pryce A, Hayden C, Byrne J, Gallipoli P, Copland M, Apperley JF, Milojkovic D. The outcome of post-transplant asciminib in patients with chronic myeloid leukaemia. Bone Marrow Transplant 2023; 58:826-828. [PMID: 37015970 DOI: 10.1038/s41409-023-01975-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/21/2022] [Accepted: 03/22/2023] [Indexed: 04/06/2023]
Affiliation(s)
- Fiona Fernando
- Centre for Haematology, Imperial College London, London, UK.
- Department of Clinical Haematology, Imperial College Healthcare NHS Trust, London, UK.
| | - Andrew J Innes
- Centre for Haematology, Imperial College London, London, UK
- Department of Clinical Haematology, Imperial College Healthcare NHS Trust, London, UK
| | - Simone Claudiani
- Centre for Haematology, Imperial College London, London, UK
- Department of Clinical Haematology, Imperial College Healthcare NHS Trust, London, UK
| | - Angharad Pryce
- Centre for Haematology, Imperial College London, London, UK
- Department of Clinical Haematology, Imperial College Healthcare NHS Trust, London, UK
| | - Chloe Hayden
- North West London Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Jenny Byrne
- Centre for Clinical Haematology, Nottingham University Hospital NHS Trust, Nottingham, UK
| | - Paolo Gallipoli
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Mhairi Copland
- Paul O'Gorman Leukaemia Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Jane F Apperley
- Centre for Haematology, Imperial College London, London, UK
- Department of Clinical Haematology, Imperial College Healthcare NHS Trust, London, UK
| | - Dragana Milojkovic
- Centre for Haematology, Imperial College London, London, UK
- Department of Clinical Haematology, Imperial College Healthcare NHS Trust, London, UK
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Willadsen E, Jørgensen LD, Alaluusua S, Pedersen NH, Nielsen JB, Hölttä E, Hide Ø, Hayden C, Havstam C, Hammarström IL, Davies J, Boers M, Andersen HS, Aukner R, Jackson Morris D, Nielsen SF, Semb G, Lohmander A, Persson C. Scandcleft randomized trials of primary surgery for unilateral cleft lip and palate: Speech proficiency at 10 years of age. Int J Lang Commun Disord 2023; 58:892-909. [PMID: 36541222 DOI: 10.1111/1460-6984.12830] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 11/21/2022] [Indexed: 05/12/2023]
Abstract
BACKGROUND & AIM To assess consonant proficiency and velopharyngeal function in 10-year-old children born with unilateral cleft lip and palate (UCLP) within the Scandcleft project. METHODS & PROCEDURES Three parallel group, randomized, clinical trials were undertaken as an international multicentre study by nine cleft teams in five countries. Three different surgical protocols for primary palate repair (Arm B-Lip and soft palate closure at 3-4 months, hard palate closure at 36 months, Arm C-Lip closure at 3-4 months, hard and soft palate closure at 12 months, and Arm D-Lip closure at 3-4 months combined with a single-layer closure of the hard palate using a vomer flap, soft palate closure at 12 months) were tested against a common procedure (Arm A-Lip and soft palate closure at 3-4 months followed by hard palate closure at 12 months) in the total cohort of 431 children born with a non-syndromic UCLP. Speech audio and video recordings of 399 children were available and perceptually analysed. Percentage of consonants correct (PCC) from a naming test, an overall rating of velopharyngeal competence (VPC) (VPC-Rate), and a composite measure (VPC-Sum) were reported. OUTCOMES & RESULTS The mean levels of consonant proficiency (PCC score) in the trial arms were 86-92% and between 58% and 83% of the children had VPC (VPC-Sum). Only 50-73% of the participants had a consonant proficiency level with their peers. Girls performed better throughout. Long delay of the hard palate repair (Arm B) indicated lower PCC and simultaneous hard and soft palate closure higher (Arm C). However, the proportion of participants with primary VPC (not including velopharyngeal surgeries) was highest in Arm B (68%) and lowest in Arm C (47%). CONCLUSIONS & IMPLICATIONS The speech outcome in terms of PCC and VPC was low across the trials. The different protocols had their pros and cons and there is no obvious evidence to recommend any of the protocols as superior. Aspects other than primary surgical method, such as time after velopharyngeal surgery, surgical experience, hearing level, language difficulties and speech therapy, need to be thoroughly reviewed for a better understanding of what has affected speech outcome at 10 years. WHAT THIS PAPER ADDS What is already known on the subject Speech outcomes at 10 years of age in children treated for UCLP are sparse and contradictory. Previous studies have examined speech outcomes and the relationship with surgical intervention in 5-year-olds. What this study adds to the existing knowledge Speech outcomes based on standardized assessment in a large group of 10-year-old children born with UCLP and surgically treated according to different protocols are presented. While speech therapy had been provided, a large proportion of the children across treatment protocols still needed further speech therapy. What are the potential or actual clinical implications of this work? Aspects other than surgery and speech function might add to the understanding of what affects speech outcome. Effective speech therapy should be available for children in addition to primary surgical repair of the cleft and secondary surgeries if needed.
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Affiliation(s)
- E Willadsen
- Department of Nordic Studies and Linguistics, University of Copenhagen, Copenhagen, Denmark
| | - L D Jørgensen
- Copenhagen Cleft Palate Centre, University Hospital of Copenhagen, Copenhagen, Denmark
| | - S Alaluusua
- Cleft Palate and Craniofacial Center, Helsinki University Central Hospital, Helsinki, Finland
| | | | | | - E Hölttä
- Cleft Palate and Craniofacial Center, Helsinki University Central Hospital, Helsinki, Finland
| | - Ø Hide
- Department of Speech and Language Disorders, Statped sørøst, Oslo, Norway
| | - C Hayden
- The Royal Hospital for Sick Children, Belfast, UK
| | - C Havstam
- Region Västra Götaland, Department of Otorhinolaryngology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Institute of Neuroscience and Physiology, Department of Health and Rehabilitation, Speech and Language Pathology Unit, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - I L Hammarström
- Division of Speech and Language Pathology, Linköping University, Linköping, Sweden
| | - J Davies
- Greater Manchester Cleft Unit, Royal Manchester Children's Hospital, Manchester, UK
| | - M Boers
- Copenhagen Cleft Palate Centre, University Hospital of Copenhagen, Copenhagen, Denmark
| | - H S Andersen
- Copenhagen Cleft Palate Centre, University Hospital of Copenhagen, Copenhagen, Denmark
| | - R Aukner
- Department of Speech and Language Disorders, Statped sørøst, Oslo, Norway
| | - D Jackson Morris
- Department of Nordic Studies and Linguistics, University of Copenhagen, Copenhagen, Denmark
| | - S F Nielsen
- Copenhagen Business School, Center for Statistics, Copenhagen, Denmark
| | - G Semb
- Department of Plastic and Reconstructive Surgery, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - A Lohmander
- Division of Speech and Language Pathology, CLINTEC, Karolinska Institutet, Stockholm, Sweden
- Medical Unit Speech and Language Pathology, Karolinska University Hospital, Stockholm, Sweden
| | - C Persson
- Region Västra Götaland, Department of Otorhinolaryngology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Institute of Neuroscience and Physiology, Department of Health and Rehabilitation, Speech and Language Pathology Unit, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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5
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Hayden C, Motta J, Bello N, Sala R, Absalon-Medina V, Ross P, Moreno J, Garcia-Guerra A. 153 Assessment of methods to synchronise follicle wave emergence in pregnant heifers. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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White HE, Salmon M, Albano F, Andersen CSA, Balabanov S, Balatzenko G, Barbany G, Cayuela JM, Cerveira N, Cochaux P, Colomer D, Coriu D, Diamond J, Dietz C, Dulucq S, Engvall M, Franke GN, Gineikiene-Valentine E, Gniot M, Gómez-Casares MT, Gottardi E, Hayden C, Hayette S, Hedblom A, Ilea A, Izzo B, Jiménez-Velasco A, Jurcek T, Kairisto V, Langabeer SE, Lion T, Meggyesi N, Mešanović S, Mihok L, Mitterbauer-Hohendanner G, Moeckel S, Naumann N, Nibourel O, Oppliger Leibundgut E, Panayiotidis P, Podgornik H, Pott C, Rapado I, Rose SJ, Schäfer V, Touloumenidou T, Veigaard C, Venniker-Punt B, Venturi C, Vigneri P, Vorkinn I, Wilkinson E, Zadro R, Zawada M, Zizkova H, Müller MC, Saussele S, Ernst T, Machova Polakova K, Hochhaus A, Cross NCP. Standardization of molecular monitoring of CML: results and recommendations from the European treatment and outcome study. Leukemia 2022; 36:1834-1842. [PMID: 35614319 PMCID: PMC9252906 DOI: 10.1038/s41375-022-01607-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/06/2022] [Accepted: 05/12/2022] [Indexed: 11/17/2022]
Abstract
Standardized monitoring of BCR::ABL1 mRNA levels is essential for the management of chronic myeloid leukemia (CML) patients. From 2016 to 2021 the European Treatment and Outcome Study for CML (EUTOS) explored the use of secondary, lyophilized cell-based BCR::ABL1 reference panels traceable to the World Health Organization primary reference material to standardize and validate local laboratory tests. Panels were used to assign and validate conversion factors (CFs) to the International Scale and assess the ability of laboratories to assess deep molecular response (DMR). The study also explored aspects of internal quality control. The percentage of EUTOS reference laboratories (n = 50) with CFs validated as optimal or satisfactory increased from 67.5% to 97.6% and 36.4% to 91.7% for ABL1 and GUSB, respectively, during the study period and 98% of laboratories were able to detect MR4.5 in most samples. Laboratories with unvalidated CFs had a higher coefficient of variation for BCR::ABL1IS and some laboratories had a limit of blank greater than zero which could affect the accurate reporting of DMR. Our study indicates that secondary reference panels can be used effectively to obtain and validate CFs in a manner equivalent to sample exchange and can also be used to monitor additional aspects of quality assurance.
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Affiliation(s)
- Helen E White
- Faculty of Medicine, University of Southampton, Southampton, UK.,Wessex Regional Genetics Laboratory, Salisbury NHS Foundation Trust, Salisbury, UK
| | - Matthew Salmon
- Faculty of Medicine, University of Southampton, Southampton, UK.,Wessex Regional Genetics Laboratory, Salisbury NHS Foundation Trust, Salisbury, UK
| | - Francesco Albano
- Department of Emergency and Organ Transplantation (D.E.T.O.)-Hematology and Stem Cell Transplantation Unit, University of Bari "Aldo Moro", Bari, Italy
| | | | - Stefan Balabanov
- Department of Medical Oncology and Hematology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Gueorgui Balatzenko
- Laboratory of Medical Genetics National Specialized Hospital for Active Treatment of Hematological Diseases, Sofia, Bulgaria
| | - Gisela Barbany
- Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Jean-Michel Cayuela
- Laboratory of Hematology, University Hospital Saint-Louis, Université de Paris, Paris, France
| | - Nuno Cerveira
- Department of Genetics and Research Centre, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - Pascale Cochaux
- Department of Molecular Hemato-Oncology, LHUB-ULB, Brussels, Belgium
| | - Dolors Colomer
- Pathology Department, Hospital Clinic, Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), CIBERONC, Barcelona, Spain
| | - Daniel Coriu
- Fundeni Clinical Institute, Hematology Department, Bucharest, Romania.,Hematology Department, Faculty of Medicine, University of Medicine and Pharmacy "Carol Davila", Bucharest, Romania
| | - Joana Diamond
- Laboratório de Hemato-Oncologia-LHO Instituto Português de Oncologia Francisco Gentil, Lisbon, Portugal
| | - Christian Dietz
- Institute for Hematology and Oncology (IHO GmbH), Mannheim, Germany
| | - Stéphanie Dulucq
- University Hospital of Bordeaux, Laboratory of Hematology, Haut Lévêque Hospital, Pessac, France
| | - Marie Engvall
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Georg N Franke
- University of Leipzig Medical Center, Department for Hematology, Cellular Therapies and Hemostaseology, Leipzig, Germany
| | | | - Michal Gniot
- Poznan University of Medical Sciences, Department of Hematology and Bone Marrow Transplantation, Poznan, Poland
| | - María Teresa Gómez-Casares
- Hematology Department, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Enrico Gottardi
- Laboratory of Chemical and Clinical Analysis "Area 3" A.O.U San Luigi Gonzaga-Orbassano, Turin, Italy
| | - Chloe Hayden
- SIHMDS Hosted by Imperial College Healthcare NHS Trust at Hammersmith Hospital, London, UK
| | - Sandrine Hayette
- Hospices Civils de Lyon, Hôpital Lyon Sud, Service d'Hématologie Biologique, Pierre-Bénite, France
| | - Andreas Hedblom
- Section of Molecular Diagnostics, Clinical Genetics, Region Skåne, Lund, Sweden
| | - Anca Ilea
- Ritus Biotec Laboratory, Codlea-Brasov, Romania.,Transilvania University, Brasov, Romania
| | - Barbara Izzo
- Department of Molecular Medicine and Medical Biotechnology University 'Federico II' and CEINGE-Advanced Biotechnologies, Naples, Italy
| | | | - Tomas Jurcek
- Department of Internal Medicine-Hematology and Oncology, University Hospital Brno, Brno, Czech Republic.,Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Veli Kairisto
- Department of Genomics, Turku University Hospital Laboratories, Turku, Finland
| | | | - Thomas Lion
- Labdia Labordiagnostik/St. Anna Children´s Cancer Research Institute (CCRI), Vienna, Austria
| | - Nora Meggyesi
- Laboratory of Molecular Genetics, Central Hospital of Southern Pest National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Semir Mešanović
- Pathology Department, University Clinical Center Tuzla, Policlinic for Laboratory Diagnostics, Tuzla, Bosnia and Herzegovina
| | - Luboslav Mihok
- Department of Medical Genetics, National Cancer Institute, Bratislava, Slovakia
| | | | | | - Nicole Naumann
- III. Medizinische Klinik, Universitätsmedizin Mannheim, Mannheim, Germany
| | | | | | - Panayiotis Panayiotidis
- Haematology Research Laboratory, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Helena Podgornik
- Department of Haematology, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Christiane Pott
- Second Medical Department, University Hospital Schleswig-Holstein, Campus Kiel, Germany
| | - Inmaculada Rapado
- Hematology Department, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Imas12, 28041, Madrid, Spain.,Hematological Malignancies Clinical Research Unit, CNIO, 28029, Madrid, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto Carlos III, 28029, Madrid, Spain
| | - Susan J Rose
- West Midlands Regional Genetics Laboratory, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | - Vivien Schäfer
- Abteilung Hämatologie/Onkologie, Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | - Tasoula Touloumenidou
- Molecular Diagnostics Laboratory, Hematology Department and HCT Unit, George Papanicolaou General Hospital, Thessaloniki, Greece
| | - Christopher Veigaard
- HemoDiagnostic Laboratory, Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Claudia Venturi
- IRCSS Azienda Ospedaliero-Universitaria di Bologna Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Paolo Vigneri
- Department of Clinical and Experimental Medicine, Center of Experimental Oncology and Hematology, University of Catania, Catania, Italy
| | - Ingvild Vorkinn
- Molecular Hemapathology, Oslo University Hospital, Oslo, Norway
| | - Elizabeth Wilkinson
- Haematological Malignancy Diagnostic Service, Leeds Teaching Hospitals, Leeds, UK
| | - Renata Zadro
- University Hospital Center Zagreb, Zagreb, Croatia
| | | | - Hana Zizkova
- Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Martin C Müller
- Institute for Hematology and Oncology (IHO GmbH), Mannheim, Germany
| | - Susanne Saussele
- III. Medizinische Klinik, Universitätsmedizin Mannheim, Mannheim, Germany
| | - Thomas Ernst
- Abteilung Hämatologie/Onkologie, Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | | | - Andreas Hochhaus
- Abteilung Hämatologie/Onkologie, Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | - Nicholas C P Cross
- Faculty of Medicine, University of Southampton, Southampton, UK. .,Wessex Regional Genetics Laboratory, Salisbury NHS Foundation Trust, Salisbury, UK.
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7
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Lemos Motta JC, Sala RV, Absalón-Medina VA, Canadas ER, Duran BJ, Hayden C, Moreno JF, Garcia-Guerra A. 85 Anti-Müllerian hormone in Holstein heifers and reproductive performance after fixed-time embryo transfer. Reprod Fertil Dev 2021; 34:279-280. [PMID: 35231214 DOI: 10.1071/rdv34n2ab85] [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: 11/23/2022] Open
Affiliation(s)
- J C Lemos Motta
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - R V Sala
- STgenetics, South Charleston, OH, USA
| | | | - E R Canadas
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - B J Duran
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - C Hayden
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | | | - A Garcia-Guerra
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
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8
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Motta JCL, Sala RV, Absalón-Medina VA, Fricke VC, Dominguez M, Pereira DC, Hayden C, Canadas ER, Duran BJ, Moreno JF, Garcia-Guerra A. 125 Influence of length of porcine follicle-stimulating hormone (p-FSH) treatment before ovum pickup on ovarian response and invitro embryo production in Holstein heifers. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Ovarian follicle stimulation with exogenous FSH before ovum pickup (OPU) in Bos taurus females is a common practice to increase invitro embryo production (IVP). The optimal stimulatory period length for OPU-IVP, however, has not been definitively ascertained. The objective of the present study, therefore, was to determine the effect of length of the superstimulatory treatment period before OPU on ovarian response and IVP in Holstein heifers. Nonpregnant heifers (n=57) 13.8±0.2 months of age with moderate body condition score (3.0±0.1; scale 1 to 5) were assigned in a completely randomised design to one of the following experimental groups: FSH2d: 200mg of p-FSH (Folltropin-V®, Vetoquinol) distributed in four injections (60, 60, 40, and 40mg) of FSH 12h apart; FSH3d: 200mg of p-FSH distributed in six injections (40, 40, 40, 40, 20, and 20mg) of FSH 12h apart. Timing of follicular wave emergence was synchronized by dominant follicle removal 36h before the first p-FSH injection in all heifers. An intravaginal progesterone (P4) implant (1.38g of P4 CIDR®, Zoetis) was inserted at the time of the first p-FSH injection and removed at the time of OPU, which occurred in all heifers at 44h (Nivet et al. 2012 Reproduction 143, 165-171; https://doi.org/10.1530/REP-11-0391) after the last p-FSH injection. Additionally, follicle number was determined at OPU and classified as small (<6mm), medium (6–10mm) or large (>10mm). Oocytes from follicles of different sizes were pooled by heifer at OPU and then classified and subjected to IVP procedures. Differences between treatment groups were evaluated using generalized linear mixed models (SAS 9.4; SAS Institute Inc.) and data are presented as mean±s.e.m. (Table 1). Lengthening the FSH treatment period resulted in a greater (P=0.01) number of large follicles; however, the number of small, medium-size, and total follicles was not different between groups. Number of total recovered oocytes, viable oocytes, cleaved oocytes, as well as recovery rate, percent viable oocytes, and cleavage rate were not different (P>0.2) between groups. Similarly, the number of blastocysts produced per heifer and blastocyst rate were not different (P>0.9) among groups. In conclusion, lengthening the period of FSH treatment by 1 day increased the number of large follicles at OPU but did not improve overall ovarian response, oocyte recovery, or embryo production.
Table 1.
Ovarian response and IVP of heifers treated with p-FSH during 2 or 3 days before ovum pickup
Response
FSH2d (n=28)
FSH3d (n=29)
P-value
Small follicles (n)
5.9±0.6
5.7±0.8
0.83
Medium follicles (n)
17.0±2.4
12.9±1.6
0.18
Large follicles (n)
2.5±0.5
4.5±0.6
0.01
Total follicles (n)
25.4±2.6
23.1±1.8
0.60
Total oocytes (n)
17.0±2.5
13.0±1.2
0.23
Recovery rate (%)
62.6±3.7
56.9±3.1
0.26
Viable oocytes (n)
14.4±2.0
11.3±1.1
0.30
Viable oocytes (%)
85.0±2.4
88.0±3.0
0.31
Cleaved oocytes (n)
8.7±1.6
7.1±1.2
0.62
Cleavage rate (%)
54.7±5.7
54.1±5.7
0.96
Blastocysts (n)
3.2±0.6
3.2±0.7
0.98
Blastocyst rate (%)
20.6±4.0
22.4±3.7
0.97
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9
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Hayden C, Sala RV, Pereira DC, Carrenho-Sala LC, Fosado M, Moreno D, Moreno JF, Garcia-Guerra A. 71 Effect of follicle-stimulating hormone dose and circulating progesterone before ovum pickup and invitro embryo production in pregnant Holstein heifers. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Superstimulation with exogenous FSH before ovum pickup for invitro embryo production (IVP) improves embryo production. However, there is limited information on different FSH dose regimens and the effect of progesterone (P4) concentrations on IVP. Thus, the objective of the present study was to evaluate the effect of FSH dose and circulating P4 on ovarian superstimulation responses, before ovum pickup (OPU) on IVP in pregnant heifers. Pregnant Holstein heifers (n=47) 19.5±0.3 months of age with moderate body condition score (3.3±0.03; scale 1 to 5) were randomly assigned to 2 treatment groups, p-FSH (Folltropin-V, Vetoquinol) 160mg (FSH160) or p-FSH 300mg (FSH300), in a crossover design. Two sessions of OPU were performed on each animal at 48 and 62 days of gestation, with a washout interval between sessions of 14 days. Dominant follicle removal (DFR) was utilised to synchronize follicular wave emergence, and FSH treatments were initiated 36h later. Heifers in both groups received a total of 4 FSH injections 12h apart as follows: FSH160 (48.0, 42.7, 37.3, and 32.0mg) or FSH300 (90.0, 80.0, 70.0, and 60.0mg). All heifers underwent OPU 40h after the last FSH treatment. Blood samples were collected for P4 quantitation at OPU and number of small (<6mm), medium (6–10mm), and large (>10mm) follicles were determined before OPU. Cumulus–oocyte complexes (COCs) recovered were processed and invitro embryo production was performed using standard procedures. Differences between treatment groups were evaluated using generalized linear mixed models, and data are presented as mean±s.e.m. (Table 1). Heifers treated with 300mg of p-FSH had a greater (P<0.05) number of medium-size follicles, total number of follicles, total COCs recovered, number of viable COCs, and number of blastocysts produced. In addition, heifers treated with 300mg of p-FSH had a greater cleavage rate (P=0.03). Circulating P4 was on average 10.1±0.4ng mL−1 and did not differ between gestation days (P=0.12). Furthermore, circulating P4 did not affect (P>0.10) any of the outcomes evaluated, nor was there an FSH dose by circulating P4 interaction (P>0.05). In conclusion, increasing the dose of p-FSH before OPU from 160 to 300mg resulted in an increase in the total number of follicles, number of oocytes, and number of blastocysts produced in pregnant donors without changes in blastocyst rate, regardless of progesterone concentrations at the time of OPU.
Table 1.
Ovum pickup and invitro embryo production in pregnant heifers treated with different doses of p-FSH
Item
FSH160
FSH300
P-value
Small follicles (n)
5.0±0.6
3.5±0.4
0.02
Medium follicles (n)
14.4±0.8
18.3±0.9
0.0003
Large follicles (n)
2.9±0.3
2.5±0.3
0.28
Total follicles (n)
22.3±0.7
24.3±0.9
0.04
Total oocytes (n)
12.8±0.7
14.7±1.0
0.02
Recovery rate (%)
56.2±2.1
59.7±2.7
0.20
Viable oocytes (n)
11.4±0.7
13.3±1.0
0.02
Viable oocytes (%)
89.9±1.7
88.0±2.4
0.22
Cleavage rate (%)
63.8±4.3
71.5±3.7
0.03
Cleaved oocytes (n)
7.2±0.7
9.3±0.9
0.14
Blastocysts (n)
2.7±0.4
3.6±0.7
0.02
Blastocyst rate (%)
22.0±3.3
22.4±3.6
0.74
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10
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Duran BJ, Lemos-Motta JC, Rojas-Canadas E, Hayden C, Rykaczewski C, Nall A, Mussard ML, Garcia-Guerra A. 48 Timing of luteolysis and conceptus expulsion after induced pregnancy loss at three different timepoints after maternal recognition of pregnancy in cattle. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Results from previous research indicate that induced pregnancy loss (IPL) on Day 36 of gestation in cattle resulted in luteolysis by gestation Day ∼45. The aim of this study was to test the hypothesis that IPL at 25, 35, or 55 days of gestation will result in luteolysis and whether the interval between IPL and luteolysis is positively associated with days of gestation at time of treatment. Pregnant non-lactating beef cows were randomly assigned to undergo IPL, consisting of an intrauterine infusion of 120mL of hypertonic saline (7.2%), at Day 25 (IPL25, n=15), Day 35 (IPL35, n=14), or Day 55 (IPL55, n=14). Corpus luteum (CL) volume and embryo/fetal viability were evaluated by transrectal B-mode ultrasonography daily for 19 days following treatment and every other day subsequently until luteolysis was identified or gestation Day 91. Blood flow through the CL was evaluated using colour-Doppler ultrasonography, and luteolysis was defined as the day when <25% of the CL was represented with colour pixels. Conceptus expulsion was defined as the absence of a conceptus and fluid accumulation in the uterus was <25%. Data were analysed using Proc Mixed in SAS (v9.4; SAS Institute Inc.). Cessation of conceptus heartbeat occurred in all animals within 24h of administration of treatment. Day of luteolysis occurred earlier (P<0.01) in IPL25 (5.3±0.4d) than IPL55 (8.9±1.4d) cows, and luteolysis tended (P=0.07) to occur earlier in IPL35 (6.6±0.6d) than IPL55 cows; however, values for this variable in IPL25 and IPL35 cows were similar (P>0.2). The variance in timing of luteolysis was greater for IPL55 than for IPL35 cows, whereas variance for IPL35 was greater than that for IPL25 (P<0.05) cows. Conceptus expulsion was detected earlier (P<0.01) in IPL25 (Day 4.2±0.4) and IPL35 (Day 5.8±0.5) than IPL55 (Day 10.4±1.4) cows; however, IPL25 and IPL35 cows had similar (P>0.1) values for this variable. Values for luteolysis and conceptus expulsion were correlated in IPL35 (r=0.84; P<0.01) and IPL55 (r=0.88; P<0.01) cows, whereas there was no correlation among values for these variables in IPL25 (r=0.31; P=0.3) cows. There were effects of treatment (P<0.01), time (P<0.01), and treatment by time interaction (P<0.01) on CL volume. Volume of the CL was less (P<0.04) in IPL25-treated cows by treatment day 5 compared with that in IPL55-treated cows. Additionally, CL volume was less (P<0.03) in IPL25 by treatment day 6 than in IPL35 cows, and IPL35 cows had a lesser (P<0.01) CL volume starting on treatment day 10 than IPL55 cows. Induction of pregnancy loss at different times of gestation resulted in luteolysis; however, the interval between treatment and luteolysis tended to increase as gestation days increased. Furthermore, the variability in the timing of luteolysis increased as gestation days increased. Results from the present study support the working hypothesis of presence of a continuous mechanism for CL maintenance during pregnancy beyond the classical maternal recognition period in cattle.
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11
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Claudiani S, Apperley JF, Szydlo R, Khan A, Nesr G, Hayden C, J Innes A, Dominy K, Foskett P, Foroni L, Khorashad J, Milojkovic D. TKI dose reduction can effectively maintain major molecular remission in patients with chronic myeloid leukaemia. Br J Haematol 2020; 193:346-355. [PMID: 33368155 DOI: 10.1111/bjh.17286] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 09/05/2020] [Accepted: 11/26/2020] [Indexed: 11/29/2022]
Abstract
Targeted therapy for chronic myeloid leukaemia (CML) has allowed for a near-normal patient life-expectancy; however, quality of life and aggravation of existing co-morbidities have posed new treatment challenges. In clinical practice, TKI dose reduction occurs frequently, often on multiple occasions, because of intolerance. We conducted a retrospective 'real-world practice' review of 246 patients receiving lower than standard dose (LD) TKI after the achievement of major molecular response (MR3), because of intolerable adverse events. In 274 of 298 cases of dose reduction (91·9%), MR3 was maintained at median follow-up of 27·3 months. One patient progressed to blast crisis while on LD TKI. Two patients developed two new ABL kinase domain mutations (T315I and V299L), of whom one had achieved deep molecular response on an alternative LD TKI at last follow-up. Seventy-six patients eventually discontinued LD TKI and the two-year treatment-free remission (TFR) rate in these patients was 74·1%. The majority of patients with CML in at least MR3 appear to be safely managed with LD TKI, although three of 246 patients had new events (progression and new mutation), indicating that this approach requires vigilance. TKI LD does not prevent the achievement of TFR in this patient population.
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Affiliation(s)
- Simone Claudiani
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK.,Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Jane F Apperley
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK.,Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Richard Szydlo
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Afzal Khan
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - George Nesr
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Chloe Hayden
- Imperial Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Andrew J Innes
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK.,Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Kathy Dominy
- Imperial Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Pierre Foskett
- Imperial Molecular Pathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Letizia Foroni
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Jamshid Khorashad
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, UK
| | - Dragana Milojkovic
- Department of Haematology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
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12
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Armstrong IS, Memmott MJ, Saint KJ, Saillant A, Hayden C, Arumugam P. P396Assessment of motion correction on myocardial blood flow from dynamic rubidium-82 PET. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez149.018] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- I S Armstrong
- Manchester University NHS Foundation Trust, Manchester, United Kingdom of Great Britain & Northern Ireland
| | - M J Memmott
- Manchester University NHS Foundation Trust, Manchester, United Kingdom of Great Britain & Northern Ireland
| | - K J Saint
- Manchester University NHS Foundation Trust, Manchester, United Kingdom of Great Britain & Northern Ireland
| | - A Saillant
- Siemens Medical Solutions USA, Inc., Molecular Imaging, Knoxville, United States of America
| | - C Hayden
- Siemens Medical Solutions USA, Inc., Molecular Imaging, Knoxville, United States of America
| | - P Arumugam
- Manchester University NHS Foundation Trust, Manchester, United Kingdom of Great Britain & Northern Ireland
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13
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Hill C, Hayden C, Riaz M, Leonard AG. Buccinator Sandwich Pushback: A New Technique for Treatment of Secondary Velopharyngeal Incompetence. Cleft Palate Craniofac J 2017; 41:230-7. [PMID: 15151445 DOI: 10.1597/02-146.1] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective A small percentage of patients have inadequate velopharyngeal closure, or secondary velopharyngeal incompetence, following primary palatoplasty. Use of the buccinator musculomucosal flap has been described for primary palate repair with lengthening, but its use in secondary palate lengthening for the correction of insufficient velopharyngeal closure has not been described. This study presents the results of a series of patients who had correction of secondary velopharyngeal incompetence using bilateral buccinator musculomucosal flaps used as a sandwich. Patients In this prospective study between 1995 and 1998, a group of 16 patients with insufficient velopharyngeal closure as determined by speech assessment and videoradiography were selected. Nasopharyngoscopy was carried out in addition in a number of cases. Case selection was a result of these investigations and clinical examination in which the major factor in velopharyngeal insufficiency was determined to be short palatal length. Design The patients underwent palate lengthening using bilateral buccinator musculomucosal flaps as a sandwich. All patients were assessed 6 months postoperatively. The operative technique, postoperative course, and recorded postoperative complications including partial/total flap necrosis and residual velopharyngeal insufficiency were evaluated. Preoperative and postoperative speech samples were rated by an independent speech therapist. Results Ninety-three percent (15 of 16) had a significant improvement in velopharyngeal insufficiency, and 14 patients had no hypernasality postoperatively. Both cases of persistent mild hypernasality had had a recognized postoperative complication. Conclusion The sandwich pushback technique for the correction of persistent velopharyngeal incompetence was successful in achieving good speech results.
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Affiliation(s)
- C Hill
- Northern Ireland Plastic and Maxillofacial Service, The Royal Belfast Hospital for Sick Children, Belfast, Northern Ireland.
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14
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Leamon S, Hayden C, Lee H, Trudinger D, Appelbee E, Hurrell DL, Richardson I. Improving access to optometry services for people at risk of preventable sight loss: a qualitative study in five UK locations. J Public Health (Oxf) 2014; 36:667-73. [PMID: 24408903 PMCID: PMC4245897 DOI: 10.1093/pubmed/fdt130] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Reducing preventable sight loss is an increasing priority for public health and health care providers. We examined the factors affecting people's use of optometry services in population groups at increased risk of sight loss. Methods This is a qualitative study in five UK locations. In England, participants were from the Pakistani and Black Caribbean communities; in Scotland from the Pakistani community; and in Northern Ireland and Wales from white socio-economically deprived communities. Thirty-four focus groups were conducted (n = 289). The study included people who attend optometry services and people not engaged with services. Results Barriers to access included limited awareness of eye health and eye disease, concern about the cost of spectacles and the appropriateness of optometry in a commercial setting. Attendance at the optometrist was primarily symptom led. A positive previous experience or continuing relationship with the optometrist helped to alleviate the barriers and promote attendance. Conclusion Addressing the disparity between the broader messages about eye health and the current perception of the function of optometry could help improve access to services. Uptake may be improved through the co-production of interventions that better resonate with local communities. Non-retail service delivery options should be explored.
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Affiliation(s)
- S Leamon
- Evidence and Service Impact Unit, Royal National Institute of Blind People (RNIB), London WC1H 9NE, UK
| | - C Hayden
- Shared Intelligence, London WC1X 0GB, UK
| | - H Lee
- Sight Loss Prevention Unit, Royal National Institute of Blind People (RNIB), London WC1H 9NE, UK
| | | | - E Appelbee
- Shared Intelligence, London WC1X 0GB, UK
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15
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Lee HS, Hayden C, Leamon S. A collaborative approach to improving access to primary eye care services in five sites across the United Kingdom 2011 to 2013. Eur J Public Health 2013. [DOI: 10.1093/eurpub/ckt124.078] [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: 11/13/2022] Open
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16
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Cannon GW, DuVall SL, Hayden C, Caplan L, Curtis JR, Michaud K, Mikuls T, Reimold A, Collier DH, Harrison DJ, Joseph GJ, Sauer B. THU0537 Persistence and Dose Escalation of Tumor Necrosis Factor (TNF)-Blockers in us Veterans. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1065] [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: 11/04/2022]
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17
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Robinson D, McGovern E, Doorley E, Hayden C, O'Shea D. The Nursing Homes Support Scheme Act in Ireland – older persons’ views. Eur Geriatr Med 2011. [DOI: 10.1016/j.eurger.2011.04.006] [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: 11/16/2022]
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18
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Gregg TA, Leonard AG, Hayden C, Howard KE, Coyle CF. Birth prevalence of cleft lip and palate in Northern Ireland (1981 to 2000). Cleft Palate Craniofac J 2008; 45:141-7. [PMID: 18333643 DOI: 10.1597/06-045.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE The prevalence of cleft lip and/or palate (CL/P) in Northern Ireland (NI) was last reported for 1980 through 1990. This study was undertaken to update the prevalence of CL/P in NI for the 20-year period 1981 to 2000, to determine the pattern of prevalence, and to report the proportion of different cleft types and sex distribution. DESIGN Retrospective, population-based analysis. PATIENTS/PARTICIPANTS All live born children with CL/P in NI from 1981 to 2000 were included. A total of 750 cases were identified. Resident births outside NI, stillbirths, abortuses, and children born with atypical orofacial clefts were excluded. Those with syndromes and submucous clefts were included in the study. RESULTS The overall prevalence of children born with CL/P within NI for the period 1981 to 2000 was 1.47 per 1000 live births, or 1:682. This was consistent with the findings reported by other U.K. studies. There were no significant changes in the prevalence rates over any 5-year period. No significant seasonality trends were noted. Clefts of the palate only were always in the majority. More boys than girls were affected by cleft lip with or without cleft palate. There was a significant left-sided predilection for unilateral clefting of the lip. CONCLUSIONS There have been no significant changes in the birth prevalence of children born with CL/P or the distribution or laterality of cleft type in the NI population during the past 20 years.
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Affiliation(s)
- T A Gregg
- Royal Belfast Hospital for Sick Children, 180 Falls Road, Belfast, Ireland.
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19
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Abidov A, Hachamovitch R, Friedman JD, Hayes SW, Kang X, Cohen I, Germano G, Berman DS, Kjaer A, Cortsen A, Federspiel M, Hesse B, Holm S, O’Connor M, Dhalla AK, Wong MY, Wang WQ, Belardinelli L, Therapeutics CV, Epps A, Dave S, Brewer K, Chiaramida S, Gordon L, Hendrix GH, Feng B, Pretorius PH, Bruyant PP, Boening G, Beach RD, Gifford HC, King MA, Fessler JA, Hsu BL, Case JA, Gegen LL, Hertenstein GK, Cullom SJ, Bateman TM, Akincioglu C, Abidov A, Nishina H, Kavanagh P, Kang X, Aboul-Enein F, Yang L, Hayes S, Friedman J, Berman D, Germano G, Santana CA, Rivero A, Folks RD, Grossman GB, Cooke CD, Hunsche A, Faber TL, Halkar R, Garcia EV, Hansen CL, Silver S, Kaplan A, Rasalingam R, Awar M, Shirato S, Reist K, Htay T, Mehta D, Cho JH, Heo J, Dubovsky E, Calnon DA, Grewal KS, George PB, Richards DR, Hsi DH, Singh N, Meszaros Z, Thomas JL, Reyes E, Loong CY, Latus K, Anagnostopoulos C, Underwood SR, Kostacos EJ, Araujo LI, Kostacos EJ, Araujo LI, Lewin HC, Hyun MC, DePuey EG, Tanaka H, Chikamori T, Igarashi Y, Harafuji K, Usui Y, Yanagisawa H, Hida S, Yamashina A, Nasr HA, Mahmoud SA, Dalipaj MM, Golanowski LN, Kemp RAD, Chow BJ, Beanlands RS, Ruddy TD, Michelena HI, Mikolich BM, McNelis P, Decker WAV, Stathopoulos I, Duncan SA, Isasi C, Travin MI, Kritzman JN, Ficaro EP, Corbett JR, Allison JS, Weinsaft JW, Wong FJ, Szulc M, Okin PM, Kligfield P, Harafuji K, Chikamori T, Igarashi Y, Tanaka H, Usui Y, Yanagisawa H, Hida S, Ishimaru S, Yamashima A, Giedd KN, Bergmann SR, Shah S, Emmett L, Allman KC, Magee M, Van Gaal W, Kritharides L, Freedman B, Abidov A, Gerlach J, Akincioglu C, Friedman J, Kavanagh P, Miranda R, Germano G, Berman DS, Hayes SW, Damera N, Lone B, Singh R, Shah A, Yeturi S, Prasad Y, Blum S, Heller EN, Bhalodkar NC, Koutelou M, Kollaros N, Theodorakos A, Manginas A, Leontiadis E, Kouzoumi A, Cokkinos D, Mazzanti M, Marini M, Cianci G, Perna GP, Pai M, Greenberg MD, Liu F, Frankenberger O, Kokkinos P, Hanumara D, Goheen E, Wu C, Panagiotakos D, Fletcher R, Greenberg MD, Liu F, Frankenberger O, Kokkinos P, Hanumara D, Goheen E, Rodriguez OJ, Iyer VN, Lue M, Hickey KT, Blood DK, Bergmann SR, Bokhari S, Chareonthaitawee P, Christensen SD, Allen JL, Kemp BJ, Hodge DO, Ritman EL, Gibbons RJ, Smanio P, Riva G, Rodriquez F, Tricoti A, Nakhlawi A, Thom A, Pretorius PH, King MA, Dahlberg S, Leppo J, Slomka PJ, Nishina H, Berman DS, Akincioglu C, Abidov A, Friedman JD, Hayes SW, Germano G, Petrovici R, Husain M, Lee DS, Nanthakumar K, Iwanochko RM, Brunken RC, DiFilippo F, Neumann DR, Bybel B, Herrington B, Bruckbauer T, Howe C, Lohmann K, Hayden C, Chatterjee C, Lathrop B, Brunken RC, Chen MS, Lohmann KA, Howe WC, Bruckbauer T, Kaczur T, Bybel B, DiFilippo FP, Druz RS, Akinboboye OA, Grimson R, Nichols KJ, Reichek N, Ngai K, Dim R, Ho KT, Pary S, Ahmed SU, Ahlberg A, Cyr G, Vitols PJ, Mann A, Alexander L, Rosenblatt J, Mieres J, Heller GV, Ahmed SU, Ahlberg AW, Cyr G, Navare S, O’Sullivan D, Heller GV, Chiadika S, Lue M, Blood DK, Bergmann SR, Bokhari S, Heston TF, Heller GV, Cerqueira MD, Jones PG, Bryngelson JR, Moutray KL, Gegen LL, Hertenstein GK, Moser K, Case JA, Zellweger MJ, Burger PC, Pfisterer ME, Mueller-Brand J, Kang WJ, Lee BI, Lee DS, Paeng JC, Lee JS, Chung JK, Lee MC, To BN, O’Connell WJ, Botvinick EH, Duvall WL, Croft LB, Einstein AJ, Fisher JE, Haynes PS, Rose RK, Henzlova MJ, Prasad Y, Vashist A, Blum S, Sagar P, Heller EN, Kuwabara Y, Nakayama K, Tsuru Y, Nakaya J, Shindo S, Hasegawa M, Komuro I, Liu YH, Wackers F, Natale D, DePuey G, Taillefer R, Araujo L, Kostacos E, Allen S, Delbeke D, Anstett F, Kansal P, Calvin JE, Hendel RC, Gulati M, Pratap P, Takalkar A, Kostacos E, Alavi A, Araujo L, Melduni RM, Duncan SA, Travin MI, Isasi CR, Rivero A, Santana C, Esiashvili S, Grossman G, Halkar R, Folks RD, Garcia EV, Su H, Dobrucki LW, Chow C, Hu X, Bourke BN, Cavaliere P, Hua J, Sinusas AJ, Spinale FG, Sweterlitsch S, Azure M, Edwards DS, Sudhakar S, Chyun DA, Young LH, Inzucchi SE, Davey JA, Wackers FJ, Noble GL, Navare SM, Calvert J, Hussain SA, Ahlberg AM, Katten DM, Boden WE, Heller GV, Shaw LJ, Yang Y, Antunes A, Botelho MF, Gomes C, de Lima JJP, Silva ML, Moreira JN, Simões S, GonÇalves L, Providência LA, Elhendy A, Bax JJ, Schinkel AF, Valkema R, van Domburg RT, Poldermans D, Arrighi J, Lampert R, Burg M, Soufer R, Veress AI, Weiss JA, Huesman RH, Gullberg GT, Moser K, Case JA, Loong CY, Prvulovich EM, Reyes E, Aswegen AV, Anagnostopoulos C, Underwood SR, Htay T, Mehta D, Sun L, Lacy J, Heo J, Brunken RC, Kaczur T, Jaber W, Ramakrishna G, Miller TD, O’connor MK, Gibbons RJ, Bural GG, Mavi A, Kumar R, El-Haddad G, Srinivas SM, A Alavi, El-Haddad G, Alavi A, Araujo L, Thomas GS, Johnson CM, Miyamoto MI, Thomas JJ, Majmundar H, Ryals LA, Ip ZTK, Shaw LJ, Bishop HA, Carmody JP, Greathouse WG, Yanagisawa H, Chikamori T, Tanaka H, Usui Y, Igarashi U, Hida S, Morishima T, Tanaka N, Takazawa K, Yamashina A, Diedrichs H, Weber M, Koulousakis A, Voth E, Schwinger RHG, Mohan HK, Livieratos L, Gallagher S, Bailey DL, Chambers J, Fogelman I, Sobol I, Barst RJ, Nichols K, Widlitz A, Horn E, Bergmann SR, Chen J, Galt JR, Durbin MK, Ye J, Shao L, Garcia EV, Mahenthiran J, Elliott JC, Jacob S, Stricker S, Kalaria VG, Sawada S, Scott JA, Aziz K, Yasuda T, Gewirtz H, Hsu BL, Moutray K, Udelson JE, Barrett RJ, Johnson JR, Menenghetti C, Taillefer R, Ruddy T, Hachamovitch R, Jenkins SA, Massaro J, Haught H, Lim CS, Underwood R, Rosman J, Hanon S, Shapiro M, Schweitzer P, VanTosh A, Jones S, Harafuji K, Giedd KN, Johnson NP, Berliner JI, Sciacca RR, Chou RL, Hickey KT, Bokhari SS, Rodriguez O, Bokhari S, Moser KW, Moutray KL, Koutelou M, Theodorakos A, Kollaros N, Manginas A, Leontiadis E, Cokkinos D, Mazzanti M, Marini M, Cianci G, Perna GP, Nanasato M, Fujita H, Toba M, Nishimura T, Nikpour M, Urowitz M, Gladman D, Ibanez D, Harvey P, Floras J, Rouleau J, Iwanochko R, Pai M, Guglin ME, Ginsberg FL, Reinig M, Parrillo JE, Cha R, Merhige ME, Watson GM, Oliverio JG, Shelton V, Frank SN, Perna AF, Ferreira MJ, Ferrer-Antunes AI, Rodrigues V, Santos F, Lima J, Cerqueira MD, Magram MY, Lodge MA, Babich JW, Dilsizian V, Line BR, Bhalodkar NC, Lone B, Singh R, Prasad Y, Yeturi S, Blum S, Heller EN, Rodriguez OJ, Skerrett D, Charles C, Shuster MD, Itescu S, Wang TS, Bruyant PP, Pretorius PH, Dahlberg S, King MA, Petrovici R, Iwanochko RM, Lee DS, Emmett L, Husain M, Hosokawa R, Ohba M, Kambara N, Tadamura E, Kubo S, Nohara R, Kita T, Thompson RC, McGhie AI, O’Keefe JH, Christenson SD, Chareonthaitawee P, Kemp BJ, Jerome S, Russell TJ, Lowry DR, Coombs VJ, Moses A, Gottlieb SO, Heiba SI, Yee G, Coppola J, Elmquist T, Braff R, Youssef I, Ambrose JA, Abdel-Dayem HM, Canto J, Dubovsky E, Scott J, Terndrup TE, Faber TL, Folks RD, Dim UR, Mclaughlin J, Pollepalle D, Schapiro W, Wang Y, Akinboboye O, Ngai K, Druz RS, Polepalle D, Phippen-Nater B, Leonardis J, Druz R. Abstracts of original contributions ASNC 2004 9th annual scientific session September 3-–October 3, 2004 New York, New York. J Nucl Cardiol 2004. [DOI: 10.1007/bf02974964] [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: 11/29/2022]
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Toraason M, Hayden C, Marlow D, Rinehart R, Mathias P, Werren D, Olsen LD, Neumeister CE, Mathews ES, Cheever KL, Marlow KL, DeBord DG, Reid TM. DNA strand breaks, oxidative damage, and 1-OH pyrene in roofers with coal-tar pitch dust and/or asphalt fume exposure. Int Arch Occup Environ Health 2001; 74:396-404. [PMID: 11563602 DOI: 10.1007/s004200100238] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine the potential for asphalt fume exposure to increase DNA damage, we conducted a cross-sectional study of roofers involved in the application of roofing asphalt. METHODS DNA strand breaks and the ratio of 8-hydroxydeoxyguanosine (8-OHdG) to 2-deoxyguanosine (dG) were measured in peripheral blood leukocytes of roofers. In addition, urinary excretion of 8-OHdG and 8-epi-prostaglandin F2alpha (8-epi-PGF) was also measured. The study population consisted of 26 roofers exposed to roofing asphalt and 15 construction workers not exposed to asphalt during the past 5 years. A subset of asphalt roofers (n = 19) was exposed to coal-tar pitch dust (coal tar) during removal of existing roofs prior to applying hot asphalt. Personal air monitoring was performed for one work-week to measure exposure to total particulates, benzene-soluble fraction of total particulates, and polycyclic aromatic compounds (PACs). Urinary 1-OH-pyrene levels were measured as an internal biomarker of PAC exposure. RESULTS Full-shift breathing zone measurements for total particulates, benzene-solubles and PACs were significantly higher for coal-tar exposed workers than for roofers not exposed to coal tar. Similarly, urinary 1-OH-pyrene levels were higher in coal-tar exposed roofers than roofers not exposed to coal tar. Total particulates or benzene-soluble fractions were not associated with urinary 1-OH-pyrene, but PAC exposure was highly correlated with urinary 1-OH-pyrene. When stratified by 1-OH-pyrene excretion, DNA strand breaks increased in a dose-dependent manner, and leukocyte 8-OHdG/dG decreased in a dose-dependent manner. Significant changes in DNA damage appeared to be linked to PACs from coal-tar exposure, although asphalt fume alone was associated with a small but significant increase in urinary 1-OH-pyrene and DNA strand breaks. CONCLUSIONS Results are consistent with previous reports that asphalt or coal-tar exposure can cause DNA damage. Urinary 8-epi-PGF remained relatively constant during the week for virtually all subjects, regardless of exposure indicating that neither asphalt nor coal-tar exposure induces an overt oxidative stress. A small, but statistically significant increase in 8OHdG was evident in end-of-week urine samples compared with start-of-week urine samples in roofers exposed to coal-tar. The increase in urinary 8OHdG coupled with the decrease in leukocyte 8-OHdG/dG, suggests that coal-tar exposure induces protective or repair mechanisms that result in reduced levels of steady-state oxidative-DNA damage.
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Affiliation(s)
- M Toraason
- National Institute for Occupational Safety and Health, Cincinnati, OH 45226, USA
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Raisch DW, Klaurens LM, Hayden C, Malagon I, Pulliam G, Fass R. Impact of a formulary change in proton pump inhibitors on health care costs and patients' symptoms. Dig Dis Sci 2001; 46:1533-9. [PMID: 11478507 DOI: 10.1023/a:1010608408684] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Patients may fail to successfully undergo a switch in therapy associated with a formulary change. The aim of this study was to measure health care costs and outcomes among patients who failed a formulary change in proton pump inhibitors in a VA medical center. Patients who failed a switch from omeprazole to lansoprazole (N = 51) were matched with patients who were successfully switched (N = 51). Health care utilization data was gathered from VA electronic databases and medical records for six months before and after the switch and, for failure patients, during the lansoprazole trial period. Statistical comparisons between failure and success patients were performed on changes in health care costs between these time periods. Health outcome data for the lansoprazole trial period and subsequent omeprazole reinstatement period were obtained through a telephone questionnaire of failure patients. Changes in total health care utilization costs did not differ significantly between failure and success groups for any of the time periods. Failure patients had significantly poorer health outcomes during their lansoprazole trial periods with significantly greater severity of heartburn and severity and frequency of acid regurgitation (P < 0.001). In conclusion, the formulary change had a negative impact upon health outcomes among failure patients but did not significantly affect their health care utilization costs. Identification of failure patients early in their lansoprazole trial periods could improved their health outcomes and satisfaction with medical care.
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Affiliation(s)
- D W Raisch
- VA Cooperative Studies Program, Clinical Research Pharmacy Coordinating Center, Albuquerque, New Mexico 87104, USA
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Lyons F, Walsh T, Hayden C, Boyd W, Coughlan BM. Cervical cytology history in Irish doctors and midwives. Ir Med J 2000; 93:176-8. [PMID: 11105441] [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: 02/18/2023]
Abstract
In Ireland we do not have a national cervical screening programme. It is hoped that such a service will soon be implemented and a pilot programme is currently underway. In our department there was a perception that many women working in the area of women's health had a "laissez-faire" attitude towards their own cervical cytology. This prompted us to perform an anonymous survey of a sample of Irish gynaecologists, general practitioners and midwives in advance of a national cervical screening programme. Overall, 80% of the questionnaires were returned completed--72% from gynaecologists, 68% from GPs and 100% from midwives. 60% of those who returned completed questionnaires were "up-to-date", 21% were "late" and 19% had never had a cervical smear.
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Affiliation(s)
- F Lyons
- Department of Gynaecology, Mater Misericordiae Hospital, Dublin
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Hayden C. Jabberwocky. Int J Tuberc Lung Dis 1999; 3:358-9. [PMID: 10206509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Affiliation(s)
- C Hayden
- Communications and Education Branch, Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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Maetz HM, Walton W, Smith M, Lincoln R, Galvin M, Tryon C, Hayden C, McMacken M, Ring K, Potts L, Edmondson J. "A satellite primer on tuberculosis:" a collaboration in distance education. J Public Health Manag Pract 1998; 4:46-55. [PMID: 10187066 DOI: 10.1097/00124784-199809000-00008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 11/25/2022]
Abstract
"A Satellite Primer on Tuberculosis" was offered as a distance-based certificate course on tuberculosis (TB) fundamentals to a national audience of over 5,000 individuals. The course was a collaborative effort of a school of public health, a state health department, and the Centers for Disease Control and Prevention. Instruction was provided through print-based self-study modules that were complemented by live, interactive satellite conferences. Course completers, over 70 percent of whom were nurses and employees of public health departments, scored significantly higher on a course posttest than on a pretest, and the vast majority felt the course provided valuable training.
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Affiliation(s)
- H M Maetz
- Department of Epidemiology and International Health, University of Alabama at Birmingham School of Public Health, USA
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Hayden C, Pereira E, Rye P, Palmer L, Gibson N, Palenque M, Hagel I, Lynch N, Goldblatt J, Lesouëf P. Mutation screening of interferon-gamma (IFNgamma) as a candidate gene for asthma. Clin Exp Allergy 1997; 27:1412-6. [PMID: 9433936 DOI: 10.1046/j.1365-2222.1997.1800979.x] [Citation(s) in RCA: 13] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Reduced levels of interferon gamma (IFNgamma) mRNA and protein have been detected in the bronchoalveolar lavage fluid of atopic asthmatics. IFNgamma is secreted by TH1 cells while IL-4 and IL-5 are secreted by TH2 cells and an imbalance in the TH1/TH2 response may be responsible for atopic asthma. The gene for IFNgamma is located on chromosome 12; a region of the genome which has been shown in linkage studies to be associated with asthma. OBJECTIVE To determine if there are any mutations present in the coding exons and 5' flanking region of the IFNgamma gene in atopic asthmatic subjects compared with controls to explain the lower levels of this cytokine as an inherited, rather than acquired, factor in the asthmatic subjects. METHODS The four exons and 5' flanking region of the IFNgamma gene were amplified by polymerase chain reaction (PCR) from genomic DNA of 265 individuals from a Western Australian and a Venezuelan population. The PCR products were examined by single strand conformational polymorphism and heteroduplex analyses to see if there were any changes in the DNA migration patterns which would suggest the presence of a sequence variation. RESULTS The four exons and the 5' flanking region of the IFNgamma gene were amplified from 265 individuals from two populations. Single strand conformational polymorphism and heteroduplex analyses did not reveal any mutations in the regions examined. CONCLUSION The gene for IFNgamma appears to be highly conserved as no sequence variations were detected in 265 individuals. These results suggest that mutations of the IFNgamma gene are unlikely to be a significant cause of an inherited asthma diathesis.
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Affiliation(s)
- C Hayden
- Department of Paediatrics, University of Western Australia, Perth
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Hayden C, Hayden J. Personal financial hygiene for junior doctors. West J Med 1997. [DOI: 10.1136/bmj.314.7088.2] [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: 11/04/2022]
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Brower ST, Tartter PI, Ahmed S, Brusco CM, Bossolt K, Hayden C, Bleiweiss I. Proliferative indices and oncoprotein expression in benign and malignant breast biopsies. Ann Surg Oncol 1995; 2:416-23. [PMID: 7496836 DOI: 10.1007/bf02306374] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [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: 01/25/2023]
Abstract
BACKGROUND Prognostic factors are used routinely in the management of breast cancer. However, their potential for identifying precursor malignant lesions has not been assessed. METHODS We have examined 285 breast biopsy specimens (140 benign, 145 malignant) for DNA ploidy, S-phase fraction, Ki-67 nuclear antigen proliferative indices, and HER-2/neu and epidermal growth factor receptor oncoproteins. RESULTS When proliferative indices were compared between the benign and malignant groups, differences were noted for DNA ploidy, S-phase fraction, and cell cycling index (p < 0.0005). When the benign nonproliferative specimens were compared with the atypical/proliferative benign specimens, proliferative indices failed to show any differences. When the specific subset of proliferative/atypical benign breast tissue was compared with the malignant specimens, DNA index, S-phase fraction, and cell cycling index showed significant differences. The mean for epidermal growth factor receptor was greater in the non-proliferative group but not statistically significant (p < 0.1). HER-2/neu oncoprotein failed to show any differences between the benign and malignant groups. Within the atypical benign group, Ki-67 correlated strongly with S-phase fraction and HER-2/neu (p < 0.01). CONCLUSIONS We have demonstrated that proliferative indices can differentiate between benign and malignant breast tissues but not among specific subgroups. In addition, epidermal growth factor may differentiate between nonproliferative and proliferative/atypical benign biopsy results. Oncoprotein determination, ploidy, and DNA proliferative indices may be useful in defining malignant and benign breast disease but are not useful in distinguishing between benign and malignant breast disease with an increased likelihood for malignant transformation.
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Affiliation(s)
- S T Brower
- Department of Surgery, Mount Sinai Medical Center, New York, New York 10029, USA
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Hayden C. Bed and breakfast blues. Health Serv J 1992; 102:22-4. [PMID: 10122022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Abstract
The conditions necessary for the secretion of phospholipase C (phosphatidylcholine cholinephosphohydrolase) by Pseudomonas aeruginosa were studied. Enzyme secretion by washed cell suspensions required a carbon source and ammonium, potassium, and calcium ions. The calcium requirement could be substituted by magnesium and strontium but not by copper, manganese, cobalt, or zinc. During growth in liquid medium, cells secreted phospholipase C during late logarithmic and early stationary phases. Secretion was repressed by the addition of inorganic phosphate but not by organic phosphates, glucose, or sodium succinate. Studies with tetracycline indicated that de novo protein synthesis was necessary for the secretion of phospholipase C and that the exoenzyme was not released from a preformed periplasmic pool. Similarly, extraction of actively secreting cells with 0.2 M MgCl2 at pH 8.4 solubilized large quantities of the periplasmic enzyme alkaline phosphatase but insignificant amounts of phospholipase C. Bacteria continued to secrete enzyme for nearly 45 min after the addition of inorganic phosphate or rifampin.
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Hayden C. The impact of OSHA on the insurance industry. Am Ind Hyg Assoc J 1978; 39:840-3. [PMID: 727110 DOI: 10.1080/0002889778507868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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