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Di Francesco ME, Magunia H, Örgel A, Tatagiba M, Radwan M, Adib SD. Case report: Interdisciplinary treatment of complex C1/C2 fractures in a patient with concomitant three-vessel coronary artery disease requiring bypass surgery. Front Surg 2023; 10:1123947. [PMID: 37260599 PMCID: PMC10228685 DOI: 10.3389/fsurg.2023.1123947] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/25/2023] [Indexed: 06/02/2023] Open
Abstract
Background Acute myocardial infarction (MI) frequently leads to consciousness disturbance following hemodynamic collapse. Therefore, MI can occur together with upper cervical spine trauma. Herein, we report the successful treatment of complex C1/C2 fractures in a patient with concomitant three-vessel coronary artery disease (CAD). Case presentation A 70-year-old patient presented in our emergency outpatient clinic after a hemodynamic collapse without neurological deficits or heart-related complaints. Computed tomography (CT) scan of the cervical spine revealed a dislocated odontoid fracture Anderson and D'Alonzo type II and an unstable Gehweiler type III injury (Jefferson's fracture). An intradiploic arachnoid cyst in the posterior wall of the posterior fossa was a coincident radiological finding. Furthermore, coronary angiography confirmed three-vessel CAD with high-grade coronary artery stenosis. Indication for upper cervical spine surgery and bypass surgery was given. An interdisciplinary team of neurosurgeons, cardiothoracic surgeons and anesthesiologists evaluated the patient's case to develop the most suitable therapy concept and alternative strategies. Finally, in first step, C1-C2 fusion was performed by Harms technique under general anesthesia with x-ray guidance, spinal neuronavigation, Doppler ultrasound and cardiopulmonary monitoring. Cardiothoracic surgeons were on standby. One month later bypass surgery was performed uneventfully. Follow-up CT scan of cervical spine revealed intraosseous screw positioning and beginning fusion of the fractures. The patient did not develop neurological deficits and recovered completely from both surgeries. Conclusions Treating complex C1/C2 fractures with concomitant severe CAD requiring treatment is challenging and carries a high risk of complications. To our knowledge, the literature does not provide any guidelines regarding therapy of this constellation. To receive upper cervical spine stability and to prevent both, spinal cord injury and cardiovascular complications, an individual approach is required. Interdisciplinary cooperation to determine optimal therapeutic algorithms is needed.
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Affiliation(s)
| | - H. Magunia
- Department of Anesthesiology and Intensive Care Medicine, University of Tuebingen, Tuebingen, Germany
| | - A. Örgel
- Department of Diagnostic and Interventional Neuroradiology, University of Tuebingen, Tuebingen, Germany
| | - M. Tatagiba
- Department of Neurosurgery, University of Tuebingen, Tuebingen, Germany
| | - M. Radwan
- Department of Thoracic and Cardiovascular Surgery, University of Tuebingen, Tuebingen, Germany
| | - S. D. Adib
- Department of Neurosurgery, University of Tuebingen, Tuebingen, Germany
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Sherratt K, Gruson H, Grah R, Johnson H, Niehus R, Prasse B, Sandmann F, Deuschel J, Wolffram D, Abbott S, Ullrich A, Gibson G, Ray EL, Reich NG, Sheldon D, Wang Y, Wattanachit N, Wang L, Trnka J, Obozinski G, Sun T, Thanou D, Pottier L, Krymova E, Meinke JH, Barbarossa MV, Leithäuser N, Mohring J, Schneider J, Włazło J, Fuhrmann J, Lange B, Rodiah I, Baccam P, Gurung H, Stage S, Suchoski B, Budzinski J, Walraven R, Villanueva I, Tucek V, Smid M, Zajíček M, Pérez Álvarez C, Reina B, Bosse NI, Meakin SR, Castro L, Fairchild G, Michaud I, Osthus D, Alaimo Di Loro P, Maruotti A, Eclerová V, Kraus A, Kraus D, Pribylova L, Dimitris B, Li ML, Saksham S, Dehning J, Mohr S, Priesemann V, Redlarski G, Bejar B, Ardenghi G, Parolini N, Ziarelli G, Bock W, Heyder S, Hotz T, Singh DE, Guzman-Merino M, Aznarte JL, Moriña D, Alonso S, Álvarez E, López D, Prats C, Burgard JP, Rodloff A, Zimmermann T, Kuhlmann A, Zibert J, Pennoni F, Divino F, Català M, Lovison G, Giudici P, Tarantino B, Bartolucci F, Jona Lasinio G, Mingione M, Farcomeni A, Srivastava A, Montero-Manso P, Adiga A, Hurt B, Lewis B, Marathe M, Porebski P, Venkatramanan S, Bartczuk RP, Dreger F, Gambin A, Gogolewski K, Gruziel-Słomka M, Krupa B, Moszyński A, Niedzielewski K, Nowosielski J, Radwan M, Rakowski F, Semeniuk M, Szczurek E, Zieliński J, Kisielewski J, Pabjan B, Kirsten H, Kheifetz Y, Scholz M, Biecek P, Bodych M, Filinski M, Idzikowski R, Krueger T, Ozanski T, Bracher J, Funk S. Predictive performance of multi-model ensemble forecasts of COVID-19 across European nations. eLife 2023; 12:81916. [PMID: 37083521 DOI: 10.7554/elife.81916] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 02/20/2023] [Indexed: 04/22/2023] Open
Abstract
Background: Short-term forecasts of infectious disease contribute to situational awareness and capacity planning. Based on best practice in other fields and recent insights in infectious disease epidemiology, one can maximise forecasts' predictive performance by combining independent models into an ensemble. Here we report the performance of ensemble predictions of COVID-19 cases and deaths across Europe from March 2021 to March 2022. Methods: We created the European COVID-19 Forecast Hub, an online open-access platform where modellers upload weekly forecasts for 32 countries with results publicly visualised and evaluated. We created a weekly ensemble forecast from the equally-weighted average across individual models' predictive quantiles. We measured forecast accuracy using a baseline and relative Weighted Interval Score (rWIS). We retrospectively explored ensemble methods, including weighting by past performance. Results: We collected weekly forecasts from 48 models, of which we evaluated 29 models alongside the ensemble model. The ensemble had a consistently strong performance across countries over time, performing better on rWIS than 91% of forecasts for deaths (N=763 predictions from 20 models), and 83% forecasts for cases (N=886 predictions from 23 models). Performance remained stable over a 4-week horizon for death forecasts but declined with longer horizons for cases. Among ensemble methods, the most influential choice came from using a median average instead of the mean, regardless of weighting component models. Conclusions: Our results support combining independent models into an ensemble forecast to improve epidemiological predictions, and suggest that median averages yield better performance than methods based on means. We highlight that forecast consumers should place more weight on incident death forecasts than case forecasts at horizons greater than two weeks. Funding: European Commission, Ministerio de Ciencia, Innovación y Universidades, FEDER; Agència de Qualitat i Avaluació Sanitàries de Catalunya; Netzwerk Universitätsmedizin; Health Protection Research Unit; Wellcome Trust; European Centre for Disease Prevention and Control; Ministry of Science and Higher Education of Poland; Federal Ministry of Education and Research; Los Alamos National Laboratory; German Free State of Saxony; NCBiR; FISR 2020 Covid-19 I Fase; Spanish Ministry of Health / REACT-UE (FEDER); National Institutes of General Medical Sciences; Ministerio de Sanidad/ISCIII; PERISCOPE European H2020; PERISCOPE European H2021; InPresa; National Institutes of Health, NSF, US Centers for Disease Control and Prevention, Google, University of Virginia, Defense Threat Reduction Agency.
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Affiliation(s)
- Katharine Sherratt
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Hugo Gruson
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Rok Grah
- European Centre for Disease Prevention and Control, Stockholm, Sweden
| | - Helen Johnson
- European Centre for Disease Prevention and Control, Stockholm, Sweden
| | - Rene Niehus
- European Centre for Disease Prevention and Control, Stockholm, Sweden
| | - Bastian Prasse
- European Centre for Disease Prevention and Control, Stockholm, Sweden
| | - Frank Sandmann
- European Centre for Disease Prevention and Control, Stockholm, Sweden
| | | | | | - Sam Abbott
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | - Graham Gibson
- University of Massachusetts Amherst, Amherst, United States
| | - Evan L Ray
- University of Massachusetts Amherst, Amherst, United States
| | | | - Daniel Sheldon
- University of Massachusetts Amherst, Amherst, United States
| | - Yijin Wang
- University of Massachusetts Amherst, Amherst, United States
| | | | - Lijing Wang
- Boston Children's Hospital, Boston, United States
| | - Jan Trnka
- Department of Biochemistry, Cell and Molecular Biology, Charles University, Prague, Czech Republic
| | | | - Tao Sun
- École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Dorina Thanou
- École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | | | | | | | | | - Neele Leithäuser
- Fraunhofer Institute for Industrial Mathematics, Kaiserslautern, Germany
| | - Jan Mohring
- Fraunhofer Institute for Industrial Mathematics, Kaiserslautern, Germany
| | - Johanna Schneider
- Fraunhofer Institute for Industrial Mathematics, Kaiserslautern, Germany
| | - Jaroslaw Włazło
- Fraunhofer Institute for Industrial Mathematics, Kaiserslautern, Germany
| | | | - Berit Lange
- Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Isti Rodiah
- Helmholtz Centre for Infection Research, Braunschweig, Germany
| | | | | | | | | | | | | | - Inmaculada Villanueva
- Institut d'Investigacions Biomediques August Pi i Sunyer, Universitat Pompeu Fabra, Barcelona, Spain
| | - Vit Tucek
- Institute of Computer Science, Prague, Czech Republic
| | - Martin Smid
- Institute of Information Theory and Automation, Prague, Czech Republic
| | - Milan Zajíček
- Institute of Information Theory and Automation, Prague, Czech Republic
| | | | | | - Nikos I Bosse
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sophie R Meakin
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Lauren Castro
- Los Alamos National Laboratory, Los Alamos, United States
| | | | - Isaac Michaud
- Los Alamos National Laboratory, Los Alamos, United States
| | - Dave Osthus
- Los Alamos National Laboratory, Los Alamos, United States
| | | | | | | | | | | | | | | | | | - Soni Saksham
- Massachusetts Institute of Technology, Cambridge, United States
| | - Jonas Dehning
- Max-Planck-Institut fur Dynamik und Selbstorganisation, Göttingen, Germany
| | - Sebastian Mohr
- Max-Planck-Institut fur Dynamik und Selbstorganisation, Göttingen, Germany
| | - Viola Priesemann
- MPRG Priesemann, Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
| | | | | | | | | | | | - Wolfgang Bock
- Technical University of Kaiserlautern, Kaiserslautern, Germany
| | | | - Thomas Hotz
- Technische Universitat Ilmenau, Ilmenau, Germany
| | | | | | - Jose L Aznarte
- Universidad Nacional de Educacion a Distancia, Madrid, Spain
| | | | - Sergio Alonso
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | - Enric Álvarez
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | - Daniel López
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | - Clara Prats
- Universitat Politecnica de Catalunya, Barcelona, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Benjamin Hurt
- University of Virginia, Charlottesville, United States
| | - Bryan Lewis
- University of Virginia, Charlottesville, United States
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Marcin Bodych
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Maciej Filinski
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | | | - Tyll Krueger
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Tomasz Ozanski
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | | | - Sebastian Funk
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Riess S, Radwan M, Baghdadi K, Winter A, Kaiser P, Hermann M, Walther T, Emrich F. Outcome after ECMO with Axillary Cannulation: The Frankfurt Experience. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1048] [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: 04/05/2023] Open
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Bhatia K, Columb M, Shelton C, Lie J, Leach S, Froud O, Verma D, Sturgess P, Sawyerr A, Desai J, Gould N, Kumari S, Sen U, Verma P, Kamath P, Koirala A, Kimber‐Craig S, Eccles J, Bewlay A, Eslam E, Radwan M, Hulgur M, Christian J, Aiyad A. Epidural labour analgesia rates during the
COVID
‐19 pandemic in the north‐west of England. Anaesthesia 2022; 77:1055-1056. [DOI: 10.1111/anae.15780] [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] [Accepted: 05/08/2022] [Indexed: 11/28/2022]
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Radwan M, Marinos S, Kaiser P, Hlavicka J, Hermann M, Walther T, Emrich F. Axillary ECMO after Cardiac Surgery: Weaning and Early Outcome in 179 Consecutive Patients. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742819] [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: 10/19/2022]
Affiliation(s)
- M. Radwan
- University Hospital Frankfurt, Frankfurt am Main, Deutschland
| | - S. Marinos
- University Hospital Frankfurt, Frankfurt am Main, Deutschland
| | - P. Kaiser
- University Hospital Frankfurt, Frankfurt am Main, Deutschland
| | - J. Hlavicka
- Uniklinikum Frankfurt, Frankfurt am Main, Deutschland
| | - M. Hermann
- University Hospital Frankfurt, Frankfurt am Main, Deutschland
| | - T. Walther
- University Hospital Frankfurt, Frankfurt am Main, Deutschland
| | - F. Emrich
- University Hospital Frankfurt, Frankfurt am Main, Deutschland
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Abstract
The main goal of the present paper is to evaluate the perturbed locations and investigate the linear stability of the triangular points. We studied the problem in the elliptic restricted three body problem frame of work. The problem is generalized in the sense that the two primaries are considered as triaxial bodies. It was found that the locations of these points are affected by the triaxiality coefficients of the primaries and the eccentricity of orbits. Also, the stability regions depend on the involved perturbations. We also studied the periodic orbits in the vicinity of the triangular points.
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Affiliation(s)
- M. Radwan
- Astronomy; Space Science and Metreology Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
| | - Nihad S. Abd El Motelp
- Astronomy Department, National Research Institute of Astronomy and Geophysics (NRIAG), 11421 Helwan, Cairo, Egypt
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Spivak B, Radwan M, Bartur P, Mester R, Weizman A. Antinuclear autoantibodies in relation to bipolar affective disorder and lithium therapy. Eur Psychiatry 2020; 11:50-2. [DOI: 10.1016/0924-9338(96)80459-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/1995] [Accepted: 05/16/1995] [Indexed: 11/28/2022] Open
Abstract
SummaryWe investigated the presence of antinuclear antibodies (ANA) in 63 drug free and lithium treated bipolar patients as compared to 37 healthy controls. Increased frequency of positive ANA was detected in bipolar patients in comparison to controls (19% vs 5%, respectively, P < 0.05). This finding was unrelated to lithium treatment. No antinative DNA antibodies or antihistone reactive antibodies were detected among the ANA positive subjects.
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Agrawal D, Swier V, Gunasekar P, Fleegel J, Radwan M. Vitamin D deficiency induces pro-inflammatory phenotype of epicardial adipose tissue accelerating neointimal hyperplasia following coronary intervention. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Wilczyńska K, Wiśniewski A, Krasiński R, Radwan P, Radwan M, Wilczyński J, Malinowski A, Kuśnierczyk P, Nowak I. Recurrent implantation failure and soluble HLA-G plasma levels. J Reprod Immunol 2017. [DOI: 10.1016/j.jri.2017.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
AIMS This study was undertaken to assess the perception of nurses about patient safety culture and to test whether it is significantly affected by the nurses' position, age, experience and working hours. BACKGROUND Patient safety has sparked the interest of healthcare mangers, yet there is limited knowledge about the current patient safety culture among nurses in the Gaza Strip. METHODS This was a descriptive cross-sectional study, administering the Arabic Safety Attitude Questionnaire (Short Form 2006) to 210 nurses in four public general hospitals. RESULTS Job Satisfaction was the most highly perceived factor affecting patient safety, followed by Perception of Management. Safety culture varied across nursing position, age, work experience and working hours. Nurse Managers had more positive attitudes towards patients than frontline clinicians did. The more experience nurses had, the better their attitudes towards patient safety. Nurses who worked the minimum weekly required hours and who were 35 years and older had better attitudes towards all patient safety dimensions except for Stress Recognition. Nurses with a positive attitude had better collaboration with healthcare professionals than those without a positive attitude. LIMITATION Generalization is limited, as nurses who worked in private and specialized hospitals were excluded. CONCLUSION Evaluation of the safety culture is the essential starting point to identify hindrances or drivers for safe patient care. Job Satisfaction, Perception of Management and Teamwork necessitate reinforcement, while Working Conditions, Stress Recognition and Safety Climate require improvement. IMPLICATIONS FOR NURSING AND HEALTH POLICY Ensuring job satisfaction through adequate staffing levels, providing incentives and maintaining a collegial environment require both strategic planning and institutional policies at the higher administrative level. Creation of a non-punitive and learning environment, promoting open communication and fostering continuous education should be fundamental aspects of hospital management. A policy of mixing experienced nurses with inexperienced nurses should be considered.
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Affiliation(s)
- A Elsous
- Department of Health Management and Economics, School of Public Health, International Campus - Tehran University of Medical Sciences, Tehran, Iran
| | - A Akbari Sari
- Department of Health Management and Economics, School of Public Health, International Campus - Tehran University of Medical Sciences, Tehran, Iran
| | - Y AlJeesh
- Faculty of Nursing, Islamic University of Gaza, Gaza Strip, Palestine
| | - M Radwan
- Department of Health Management and Economics, School of Public Health, International Campus - Tehran University of Medical Sciences, Tehran, Iran
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Radwan M, El-Hamid H, Nagi S. Synthesis, Properties and Hydration Characteristics of Novel Nano-Size Mineral Trioxide and Tetracalcium Phosphate for Dental Applications. ACTA ACUST UNITED AC 2016. [DOI: 10.13005/ojc/320516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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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Agrawal D, Gunasekar P, Boosani C, Swier V, Radwan M, Del Core M, Hunter W. Gene therapy reduces angioplasty induced coronary restenosis in a high cholesterol swine model. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.022] [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: 11/28/2022]
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13
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El-Sayed Ahmad A, Papadopoulos N, Risteski P, Radwan M, Ay M, Moritz A, Zierer A. Early and Long-term Outcomes after Aortic Surgery in Patients with Marfan Syndrome. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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El-Sayed Ahmad A, Risteski P, Papadopoulos N, Radwan M, Moritz A, Zierer A. Selective Antegrade Cerebral Perfusion during Mild to Moderate (≥ 28°C) Systemic Hypothermia can Safely and Reproducibly Be Apllied to All Aspects of Aortic Arch Surgery: Single Center Experience in 587 Consecutive Patients over a 15 Year Period. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Agrawal D, Yin K, Swier V, Tang L, Radwan M. Vitamin D protects against atherosclerosis via regulation of macrophage foam cell formation and polarization in hypercholesterolemic swine. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.284] [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: 11/25/2022]
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Montet D, Al Shobaky A, Barreto Crespo M, Payrastre L, Mansour H, Othman Y, Morshdy A, El Zayat M, Ibrahim H, El-Arabi T, Magid El-Shibiny A, Nagy K, Fadaly H, Sorour M, Hassanien Y, Hassan A, Abdel-Mawgood A, Ahmed A, Abdelghany S, Radwan M, Ismaiel M, Magdy M, Negm M, Mossa A, Heikal T, Abd EL-Hamid A, El Shahaby O, Abdu A, Mowafy A, Sabaa G, Mohamed S. Future topics of common interest for EU and Egypt in food quality, safety and traceability. Quality Assurance and Safety of Crops & Foods 2015. [DOI: 10.3920/qas2014.0428] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- D. Montet
- Cirad, UMR 95 Qualisud, TA B-95/16, 73, rue Jean-Fran�ois Breton, 34398 Montpellier Cedex 5, France
| | - A. Al Shobaky
- Mansoura University, 60 El Gohoureya street, El Mansoura, 35516 El Dakahylea, Egypt
| | | | - L. Payrastre
- INRA UMR 1331 Toxalim, 180 chemin de Tournefeuille, BP 93173, 31027 Toulouse Cedex 3, France
| | - H. Mansour
- Ain Shams University, Khalifa El-Maamon st., Abbasiya sq., 11566 Cairo, Egypt
- Ministry of Trade and Industry, Latin America, Garden City, Cairo, Egypt
| | - Y. Othman
- Mansoura University, 60 El Gohoureya street, El Mansoura, 35516 El Dakahylea, Egypt
| | - A. Morshdy
- Zagazig University, Zagazig, 44519 El Sharkaya, Egypt
| | - M. El Zayat
- Mansoura University, 60 El Gohoureya street, El Mansoura, 35516 El Dakahylea, Egypt
| | - H. Ibrahim
- Menoufia University, Shebin-el-Kome st., 32511 Menoufia, Egypt
| | - T. El-Arabi
- Ain Shams University, Khalifa El-Maamon st., Abbasiya sq., 11566 Cairo, Egypt
| | - A.A. Magid El-Shibiny
- Zewail City for Science & Technology, 1 Ibrahimi Street, Medan El-Sheikh Youssef, Garden City, 11461 Cairo, Egypt
| | - K. Nagy
- Agriculture Research Center, 9 Gamma Elqahera st.,12619 Giza, Egypt
| | - H. Fadaly
- Damietta University, New Damietta, 34511 Damietta, Egypt
| | - M.A. Sorour
- Sohag University, Nasser City, 82524 Sohag, Egypt
| | - Y.A. Hassanien
- Menoufia University, Shebin-el-Kome st., 32511 Menoufia, Egypt
| | - A.R. Hassan
- Menia University, Menia, PO Box 61519, Egypt
| | | | - A. Ahmed
- Ain Shams University, Khalifa El-Maamon st., Abbasiya sq., 11566 Cairo, Egypt
| | - S. Abdelghany
- Cairo University, Orman, Gamaa Street, 12613 Giza, Egypt
| | - M. Radwan
- Cairo University, Orman, Gamaa Street, 12613 Giza, Egypt
| | - M. Ismaiel
- Farm Frites Company, 18th Joseph prostito St. Sindbad Road Nozha - Heliopolis, Cairo, Egypt
| | - M. Magdy
- Katilo Co. Company, Salah Salem Street,Katilo Building, 34511 Damietta, Egypt
| | - M. Negm
- Agriculture Research Center, 9 Gamma Elqahera st.,12619 Giza, Egypt
| | - A.T. Mossa
- National Research Center, El Buhouth St., Dokki, 12311 Cairo, Egypt
| | - T. Heikal
- National Research Center, El Buhouth St., Dokki, 12311 Cairo, Egypt
| | | | - O. El Shahaby
- Mansoura University, 60 El Gohoureya street, El Mansoura, 35516 El Dakahylea, Egypt
| | - A. Abdu
- Mansoura University, 60 El Gohoureya street, El Mansoura, 35516 El Dakahylea, Egypt
| | - A. Mowafy
- Mansoura University, 60 El Gohoureya street, El Mansoura, 35516 El Dakahylea, Egypt
| | - G. Sabaa
- Zagazig University, Zagazig, 44519 El Sharkaya, Egypt
| | - S. Mohamed
- Zagazig University, Zagazig, 44519 El Sharkaya, Egypt
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El-Sayed Ahmad A, Papadopoulos N, Risteski P, Radwan M, Moritz A, Zierer A. Minimally Invasive Single Stage Repair of Extensive Thoracic Aortic Pathologies: Proof of Concept. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1544563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Radwan M, Abu El-Yazeed O, Elbadawy I, Gad M. A COMPUTATIONAL STUDY OF IN-CYLINDER FLOW CHARACTERISTICS IN TWO STROKE SIE WITH DOUBLE INTAKE MANIFOLDS AT DIFFERENT INCLINATION ANGLES. ACTA ACUST UNITED AC 2014. [DOI: 10.21608/amme.2014.35599] [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: 10/26/2022]
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Matulewicz L, Radwan M, Miszczyk L, Giebel S, Slosarek K. PO-0843: Tomotherapy vs. VMAT for ottal marrow irradiation. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30961-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jurewicz J, Radwan M, Merecz-Kot D, Sobala W, Ligocka D, Radwan P, Bochenek M, Hanke W. Occupational, life stress and family functioning: does it affect semen quality? Ann Hum Biol 2013; 41:220-8. [PMID: 24180268 DOI: 10.3109/03014460.2013.849755] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND AND AIMS Although psychological stress has been implicated as a cause of idiopathic infertility in both men and women, it has received little scientific attention among males as compared to females. The aim of the study was to examine the association between occupational, life stress, family functioning and semen quality. METHODS AND RESULTS The study population consisted of 327 men who were attending an infertility clinic for diagnostic purposes. Psychological stress was assessed based on two questionnaires: The Subjective Work Characteristics Questionnaire and the Perceived Stress Scale. The level of satisfaction with family functioning and support was evaluated by means of the APGAR Family Scale. The findings suggest that, on the one hand, exposure to occupational stressors can be negatively associated with semen quality (there was a positive association between stress and the percentage of sperm with DNA damage (p = 0.03) and atypical sperm (p = 0.05)); on the other hand, there was no correlation between the level of life stress and semen quality indicators. Negative associations were found between satisfaction with family functioning and the percentage of motile sperm cells (p = 0.02), VAP (p = 0.05), VSL (p = 0.05) and VCL (p = 0.04). CONCLUSION The study indicates that occupational stress can affect male semen quality; however, due to limited data on this issue, the obtained results should be confirmed in longitudinal studies.
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Affiliation(s)
- J Jurewicz
- Department of Environmental Epidemiology, Nofer Institute of Occupational Medicine , 91-362 Lodz , Poland
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Gandhi G, Allahbadia G, Kagalwala S, Allahbadia A, Ramesh S, Patel K, Hinduja R, Chipkar V, Madne M, Ramani R, Joo JK, Jeung JE, Go KR, Lee KS, Goto H, Hashimoto S, Amo A, Yamochi T, Iwata H, Morimoto Y, Koifman M, Lahav-Baratz S, Blais E, Megnazi-Wiener Z, Ishai D, Auslender R, Dirnfeld M, Zaletova V, Zakharova E, Krivokharchenko I, Zaletov S, Zhu L, Li Y, Zhang H, Ai J, Jin L, Zhang X, Rajan N, Kovacs A, Foley C, Flanagan J, O'Callaghan J, Waterstone J, Dineen T, Dahdouh EM, St-Michel P, Granger L, Carranza-Mamane B, Faruqi F, Kattygnarath TV, Gomes FLAF, Christoforidis N, Ioakimidou C, Papas C, Moisidou M, Chatziparasidou A, Klaver M, Tilleman K, De Sutter P, Lammers J, Freour T, Splingart C, Barriere P, Ikeno T, Nakajyo Y, Sato Y, Hirata K, Kyoya T, Kyono K, Campos FB, Meseguer M, Nogales M, Martinez E, Ariza M, Agudo D, Rodrigo L, Garcia-Velasco JA, Lopes AS, Frederickx V, Vankerkhoven G, Serneels A, Roziers P, Puttermans P, Campo R, Gordts S, Fragouli E, Alfarawati S, Spath K, Wells D, Liss J, Lukaszuk K, Glowacka J, Bruszczynska A, Gallego SC, Lopez LO, Vila EO, Garcia MG, Canas CL, Segovia AG, Ponce AG, Calonge RN, Peregrin PC, Hashimoto S, Amo A, Ito K, Nakaoka Y, Morimoto Y, Alcoba DD, Valerio EG, Conzatti M, Tornquist J, Kussler AP, Pimentel AM, Corleta HE, Brum IS, Boyer P, Montjean D, Tourame P, Gervoise-Boyer M, Cohen J, Lefevre B, Radio CI, Wolf JP, Ziyyat A, De Croo I, Tolpe A, Degheselle S, Van de Velde A, Tilleman K, De Sutter P, Van den Abbeel E, Kagalwala S, Gandhi G, Allahbadia G, Kuwayama M, Allahbadia A, Chipkar V, Khatoon A, Ramani R, Madne M, Alsule S, Inaba M, Ohgaki A, Ohtani A, Matsumoto H, Mizuno S, Mori R, Fukuda A, Morimoto Y, Umekawa Y, Yoshida A, Tanigiwa S, Seida K, Suzuki H, Tanaka M, Vahabi Z, Yazdi PE, Dalman A, Ebrahimi B, Mostafaei F, Niknam MR, Watanabe S, Kamihata M, Tanaka T, Matsunaga R, Yamanaka N, Kani C, Ishikawa T, Wada T, Morita H, Miyamura H, Nishio E, Ito M, Kuwahata A, Ochi M, Horiuchi T, Dal Canto M, Guglielmo MC, Fadini R, Renzini MM, Albertini DF, Novara P, Lain M, Brambillasca F, Turchi D, Sottocornola M, Coticchio G, Kato M, Fukunaga N, Nagai R, Kitasaka H, Yoshimura T, Tamura F, Hasegawa N, Nakayama K, Takeuchi M, Ohno H, Aoyagi N, Kojima E, Itoi F, Hashiba Y, Asada Y, Kikuchi H, Iwasa Y, Kamono T, Suzuki A, Yamada K, Kanno H, Sasaki K, Murakawa H, Matsubara M, Yoshida H, Valdespin C, Elhelaly M, Chen P, Pangestu M, Catt S, Hojnik N, Kovacic B, Roglic P, Taborin M, Zafosnik M, Knez J, Vlaisavljevic V, Mori C, Yabuuchi A, Ezoe K, Takayama Y, Aono F, Kato K, Radwan P, Krasinski R, Chorobik K, Radwan M, Stoppa M, Maggiulli R, Capalbo A, Ievoli E, Dovere L, Scarica C, Albricci L, Romano S, Sanges F, Barnocchi N, Papini L, Vivarelli A, Ubaldi FM, Rienzi L, Rienzi L, Bono S, Capalbo A, Spizzichino L, Rubio C, Ubaldi FM, Fiorentino F, Ferris J, Favetta LA, MacLusky N, King WA, Madani T, Jahangiri N, Aflatoonian R, Cater E, Hulme D, Berrisford K, Jenner L, Campbell A, Fishel S, Zhang XY, Yilmaz A, Hananel H, Ao A, Vutyavanich T, Piromlertamorn W, Saenganan U, Samchimchom S, Wirleitner B, Lejeune B, Zech NH, Vanderzwalmen P, Albani E, Parini V, Smeraldi A, Menduni F, Antonacci R, Marras A, Levi S, Morreale G, Pisano B, Di Biase A, Di Rosa A, Setti PEL, Puard V, Cadoret V, Tranchant T, Gauthier C, Reiter E, Guerif F, Royere D, Yoon SY, Eum JH, Park EA, Kim TY, Yoon TK, Lee DR, Lee WS, Cabal AC, Vallejo B, Campos P, Sanchez E, Serrano J, Remohi J, Nagornyy V, Mazur P, Mykytenko D, Semeniuk L, Zukin V, Guilherme P, Madaschi C, Bonetti TCS, Fassolas G, Izzo CR, Santos MJDL, Beltran D, Garcia-Laez V, Escriba MJ, Grau N, Escrich L, Albert C, Zuzuarregui JL, Pellicer A, LU Y, Nikiforaki D, Meerschaut FV, Neupane J, De Vos WH, Lierman S, Deroo T, Heindryckx B, De Sutter P, Li J, Chen XY, Lin G, Huang GN, Sun ZY, Zhong Y, Zhang B, Li T, Zhang SP, Ye H, Han SB, Liu SY, Zhou J, Lu GX, Zhuang GL, Muela L, Roldan M, Gadea B, Martinez M, Perez I, Meseguer M, Munoz M, Castello C, Asensio M, Fernandez P, Farreras A, Rovira S, Capdevila JM, Velilla E, Lopez-Teijon M, Kovacs P, Matyas SZ, Forgacs V, Reichart A, Rarosi F, Bernard A, Torok A, Kaali SG, Sajgo A, Pribenszky CS, Sozen B, Ozturk S, Yaba-Ucar A, Demir N, Gelo N, Stanic P, Hlavati V, ogoric S, Pavicic-Baldani D, prem-Goldtajn M, Radakovic B, Kasum M, Strelec M, Canic T, imunic V, Vrcic H, Ajina M, Negra D, Ben-Ali H, Jallad S, Zidi I, Meddeb S, Bibi M, Khairi H, Saad A, Escrich L, Grau N, Meseguer M, Gamiz P, Viloria T, Escriba MJ, Lima ET, Fernandez MP, Prieto JAA, Varela MO, Kassa D, Munoz EM, Morita H, Watanabe S, Kamihata M, Matsunaga R, Wada T, Kani K, Ishikawa T, Miyamura H, Ito M, Kuwahata A, Ochi M, Horiuchi T, Nor-Ashikin MNK, Norhazlin JMY, Norita S, Wan-Hafizah WJ, Mohd-Fazirul M, Razif D, Hoh BP, Dale S, Cater E, Woodhead G, Jenner L, Fishel S, Andronikou S, Francis G, Tailor S, Vourliotis M, Almeida PA, Krivega M, Van de Velde H, Lee RK, Hwu YM, Lu CH, Li SH, Vaiarelli A, Antonacci R, Smeraldi A, Desgro M, Albani E, Baggiani A, Zannoni E, Setti PEL, Kermavner LB, Klun IV, Pinter B, Vrtacnik-Bokal E, De Paepe C, Cauffman G, Verheyen G, Stoop D, Liebaers I, Van de Velde H, Stecher A, Wirleitner B, Vanderzwalmen P, Zintz M, Neyer A, Bach M, Baramsai B, Schwerda D, Zech NH, Wiener-Megnazi Z, Fridman M, Koifman M, Lahav-Baratz S, Blais I, Auslender R, Dirnfeld M, Akerud H, Lindgren K, Karehed K, Wanggren K, Hreinsson J, Rovira S, Capdevila JM, Freijomil B, Castello C, Farreras A, Fernandez P, Asensio M, Lopez-Teijon M, Velilla E, Weiss A, Neril R, Geslevich J, Beck-Fruchter R, Lavee M, Golan J, Ermoshkin A, Shalev E, Shi W, Zhang S, Zhao W, Xue XIA, Wang MIN, Bai H, Shi J, Smith HL, Shaw L, Kimber S, Brison D, Boumela I, Assou S, Haouzi D, Ahmed OA, Dechaud H, Hamamah S, Dasiman R, Nor-Shahida AR, Wan-Hafizah WJ, Norhazlin JMY, Mohd-Fazirul M, Salina O, Gabriele RAF, Nor-Ashikin MNK, Ben-Yosef D, Shwartz T, Cohen T, Carmon A, Raz NM, Malcov M, Frumkin T, Almog B, Vagman I, Kapustiansky R, Reches A, Azem F, Amit A, Cetinkaya M, Pirkevi C, Yelke H, Kumtepe Y, Atayurt Z, Kahraman S, Risco R, Hebles M, Saa AM, Vilches-Ferron MA, Sanchez-Martin P, Lucena E, Lucena M, Heras MDL, Agirregoikoa JA, Martinez E, Barrenetxea G, De Pablo JL, Lehner A, Pribenszky C, Murber A, Rigo J, Urbancsek J, Fancsovits P, Bano DG, Sanchez-Leon A, Marcos J, Molla M, Amorocho B, Nicolas M, Fernandez L, Landeras J, Adeniyi OA, Ehbish SM, Brison DR, Egashira A, Murakami M, Nagafuchi E, Tanaka K, Tomohara A, Mine C, Otsubo H, Nakashima A, Otsuka M, Yoshioka N, Kuramoto T, Choi D, Yang H, Park JH, Jung JH, Hwang HG, Lee JH, Lee JE, Kang AS, Yoo JH, Kwon HC, Lee SJ, Bang S, Shin H, Lim HJ, Min SH, Yeon JY, Koo DB, Kuwayama M, Higo S, Ruvalcaba L, Kobayashi M, Takeuchi T, Yoshida A, Miwa A, Nagai Y, Momma Y, Takahashi K, Chuko M, Nagai A, Otsuki J, Kim SG, Lee JH, Kim YY, Kim HJ, Park IH, Sun HG, Lee KH, Song HJ, Costa-Borges N, Belles M, Herreros J, Teruel J, Ballesteros A, Pellicer A, Calderon G, Nikiforaki D, Vossaert L, Meerschaut FV, Qian C, Lu Y, Parys JB, De Vos WH, Deforce D, Deroo T, Van den Abbeel E, Leybaert L, Heindryckx B, De Sutter P, Surlan L, Otasevic V, Velickovic K, Golic I, Vucetic M, Stankovic V, Stojnic J, Radunovic N, Tulic I, Korac B, Korac A, Fancsovits P, Pribenszky C, Lehner A, Murber A, Rigo J, Urbancsek J, Elias R, Neri QV, Fields T, Schlegel PN, Rosenwaks Z, Palermo GD, Gilson A, Piront N, Heens B, Vastersaegher C, Vansteenbrugge A, Pauwels PCP, Abdel-Raheem MF, Abdel-Rahman MY, Abdel-Gaffar HM, Sabry M, Kasem H, Rasheed SM, Amin M, Abdelmonem A, Ait-Allah AS, VerMilyea M, Anthony J, Bucci J, Croly S, Coutifaris C, Maggiulli R, Rienzi L, Cimadomo D, Capalbo A, Dusi L, Colamaria S, Baroni E, Giuliani M, Vaiarelli A, Sapienza F, Buffo L, Ubaldi FM, Zivi E, Aizenman E, Barash D, Gibson D, Shufaro Y, Perez M, Aguilar J, Taboas E, Ojeda M, Suarez L, Munoz E, Casciani V, Minasi MG, Scarselli F, Terribile M, Zavaglia D, Colasante A, Franco G, Greco E, Hickman C, Cook C, Gwinnett D, Trew G, Carby A, Lavery S, Asgari L, Paouneskou D, Jayaprakasan K, Maalouf W, Campbell BK, Aguilar J, Taboas E, Perez M, Munoz E, Ojeda M, Remohi J, Rega E, Alteri A, Cotarelo RP, Rubino P, Colicchia A, Giannini P, Devjak R, Papler TB, Tacer KF, Verdenik I, Scarica C, Ubaldi FM, Stoppa M, Maggiulli R, Capalbo A, Ievoli E, Dovere L, Albricci L, Romano S, Sanges F, Vaiarelli A, Iussig B, Gala A, Ferrieres A, Assou S, Vincens C, Bringer-Deutsch S, Brunet C, Hamamah S, Conaghan J, Tan L, Gvakharia M, Ivani K, Chen A, Pera RR, Bowman N, Montgomery S, Best L, Campbell A, Duffy S, Fishel S, Hirata R, Aoi Y, Habara T, Hayashi N, Dinopoulou V, Partsinevelos GA, Bletsa R, Mavrogianni D, Anagnostou E, Stefanidis K, Drakakis P, Loutradis D, Hernandez J, Leon CL, Puopolo M, Palumbo A, Atig F, Kerkeni A, Saad A, Ajina M, D'Ommar G, Herrera AK, Lozano L, Majerfeld M, Ye Z, Zaninovic N, Clarke R, Bodine R, Rosenwaks Z, Mazur P, Nagorny V, Mykytenko D, Semeniuk L, Zukin V, Zabala A, Pessino T, Outeda S, Blanco L, Leocata F, Asch R, Wan-Hafizah WJ, Rajikin MH, Nuraliza AS, Mohd-Fazirul M, Norhazlin JMY, Razif D, Nor-Ashikin MNK, Machac S, Hubinka V, Larman M, Koudelka M, Budak TP, Membrado OO, Martinez ES, Wilson P, McClure A, Nargund G, Raso D, Insua MF, Lotti B, Giordana S, Baldi C, Barattini J, Cogorno M, Peri NF, Neuspiller F, Resta S, Filannino A, Maggi E, Cafueri G, Ferraretti AP, Magli MC, Gianaroli L, Sioga A, Oikonomou Z, Chatzimeletiou K, Oikonomou L, Kolibianakis E, Tarlatzis BC, Sarkar MR, Ray D, Bhattacharya J, Alises JM, Gumbao D, Sanchez-Leon A, Amorocho B, Molla M, Nicolas M, Fernandez L, Landeras J, Duffy S, Campbell A, Montgomery S, Hickman CFL, Fishel S, Fiorentino I, Gualtieri R, Barbato V, Braun S, Mollo V, Netti P, Talevi R, Bayram A, Findikli N, Serdarogullari M, Sahin O, Ulug U, Tosun SB, Bahceci M, Leon AS, Gumbao D, Marcos J, Molla M, Amorocho B, Nicolas M, Fernandez L, Landeras J, Cardoso MCA, Aguiar APS, Sartorio C, Evangelista A, Gallo-Sa P, Erthal-Martins MC, Mantikou E, Jonker MJ, de Jong M, Wong KM, van Montfoort APA, Breit TM, Repping S, Mastenbroek S, Power E, Montgomery S, Duffy S, Jordan K, Campbell A, Fishel S, Findikli N, Aksoy T, Gultomruk M, Aktan A, Goktas C, Ulug U, Bahceci M, Petracco R, Okada L, Azambuja R, Badalotti F, Michelon J, Reig V, Kvitko D, Tagliani-Ribeiro A, Badalotti M, Petracco A, Pirkevi C, Cetinkaya M, Yelke H, Kumtepe Y, Atayurt Z, Kahraman S, Aydin B, Cepni I, Serdarogullari M, Findikli N, Bayram A, Goktas C, Sahin O, Ulug U, Bahceci M, Rodriguez-Arnedo D, Ten J, Guerrero J, Ochando I, Perez M, Bernabeu R, Okada L, Petracco R, Azambuja R, Badalotti F, Michelon J, Reig V, Tagliani-Ribeiro A, Kvitko D, Badalotti M, Petracco A, Reig V, Kvitko D, Tagliani-Ribeiro A, Okada L, Azambuja R, Petracco R, Michelon J, Badalotti F, Petracco A, Badalotti M. Embryology. Hum Reprod 2013. [DOI: 10.1093/humrep/det210] [Citation(s) in RCA: 7] [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: 11/12/2022] Open
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Ahmed A, Allam M, Habil E, Metwally A, Ibrahiem N, Radwan M, El Gaafary M, Gadallah M. Compliance with haemodialysis practice guidelines in Egypt. East Mediterr Health J 2013; 19:4-9. [DOI: doi 10.26719/2013.19.1.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
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Ahmed A, Allam M, Habil E, Metwally A, Ibrahiem N, Radwan M, El Gaafary M, Gadallah M. Compliance with haemodialysis practice guidelines in Egypt. East Mediterr Health J 2013. [DOI: 10.26719/2013.19.1.4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ahmed AMA, Allam MF, Habil ES, Metwally AM, Ibrahiem NA, Radwan M, El-Gaafary MM, Gadallah MA. Compliance with haemodialysis practice guidelines in Egypt. East Mediterr Health J 2013; 19:4-9. [PMID: 23520899] [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: 06/01/2023]
Abstract
Evidence- and consensus-based clinical practice guidelines for haemodialysis have recently been developed in Egypt. This study aimed to measure compliance with the guidelines in a sample of 16 government hospitals in Cairo and Giza governorates. Each haemodialysis unit was visited to assess the haemodialysis unit and patient care practices for all patients under dialysis at the time of the visit. The mean percentage compliance with haemodialysis guidelines among all study hospitals was 59.3% (SD 11.2%) overall. Within the 5 separate domains, compliance was: 58.8% (SD 12.4%) for personnel, 68.5% (SD 16.0%) for patient care practices, 61.3% (SD 15.4%) for infection prevention and control, 51.5% (SD 18.2%) for the facility and 56.5% (SD 7.1%) for documentation/ records. There were no statistically significant differences between Cairo and Giza governorates except for facility measures which were slightly better in Giza. Overall, compliance with the developed practice guidelines for haemodialysis in Egypt was not satisfactory and was not uniform across facilities.
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Fourati Ben Mustapha S, Khrouf M, Kacem Ben Rejeb K, Elloumi Chaabene H, Merdassi G, Wahbi D, Ben Meftah M, Zhioua F, Zhioua A, Azzarello A, Host T, Mikkelsen AL, Theofanakis CP, Dinopoulou V, Mavrogianni D, Partsinevelos GA, Drakakis P, Stefanidis K, Bletsa A, Loutradis D, Rienzi L, Cobo A, Paffoni A, Scarduelli C, Capalbo A, Garrido N, Remohi J, Ragni G, Ubaldi FM, Herrer R, Quera M, GIL E, Serna J, Grondahl ML, Bogstad J, Agerholm IE, Lemmen JG, Bentin-Ley U, Lundstrom P, Kesmodel US, Raaschou-Jensen M, Ladelund S, Guzman L, Ortega C, Albuz FK, Gilchrist RB, Devroey P, Smitz J, De Vos M, Bielanska M, Leveille MC, Borghi E, Magli MC, Figueroa MJ, Mascaretti G, Ferraretti AP, Gianaroli L, Szlit E, Leocata Nieto F, Maggiotto G, Arenas G, Tarducci Bonfiglio N, Ahumada A, Asch R, Sciorio R, Dayoub N, Thong J, Pickering S, Ten J, Carracedo MA, Guerrero J, Rodriguez-Arnedo A, Llacer J, Bernabeu R, Tatone C, Heizenrieder T, Di Emidio G, Treffon P, Seidel T, Eichenlaub-Ritter U, Cortezzi SS, Cabral EC, Ferreira CR, Trevisan MG, Figueira RCS, Braga DPAF, Eberlin MN, Iaconelli Jr. A, Borges Jr. E, Zabala A, Pessino T, Blanco L, Rey Valzacchi G, Leocata F, Ahumada A, Vanden Meerschaut F, Heindryckx B, Qian C, Deforce D, Leybaert L, De Sutter P, De las Heras M, De Pablo JL, Navarro B, Agirregoikoa JA, Barrenetxea G, Cruz M, Perez-Cano I, Gadea B, Herrero J, Martinez M, Roldan M, Munoz M, Pellicer A, Meseguer M, Munoz M, Cruz M, Roldan M, Gadea B, Galindo N, Martinez M, Pellicer A, Meseguer M, Perez-Cano I, Scarselli F, Alviggi E, Colasante A, Minasi MG, Rubino P, Lobascio M, Ferrero S, Litwicka K, Varricchio MT, Giannini P, Piscitelli P, Franco G, Zavaglia D, Nagy ZP, Greco E, Urner F, Wirthner D, Murisier F, Mock P, Germond M, Amorocho Llanos B, Calderon G, Lopez D, Fernandez L, Nicolas M, Landeras J, Finn-Sell SL, Leandri R, Fleming TP, Macklon NS, Cheong YC, Eckert JJ, Lee JH, Jung YJ, Hwang HK, Kang A, An SJ, Jung JY, Kwon HC, Lee SJ, Palini S, Zolla L, De Stefani S, Scala V, D'Alessandro A, Polli V, Rocchi P, Tiezzi A, Pelosi E, Dusi L, Bulletti C, Fadini R, Lain M, Mignini Renzini M, Brambillasca F, Coticchio G, Merola M, Guglielmo MC, Dal Canto M, Figueira R, Setti AS, Braga DPAF, Iaconelli Jr. A, Borges Jr. E, Worrilow KC, Uzochukwu CD, Eid S, Le Gac S, Esteves TC, van Rossem F, van den Berg A, Boiani M, Kasapi E, Panagiotidis Y, Goudakou M, Papatheodorou A, Pasadaki T, Prapas N, Prapas Y, Panagiotidis Y, Kasapi E, Goudakou M, Papatheodorou A, Pasadaki T, Vanderzwalmen P, Prapas N, Prapas Y, Norasing S, Atchajaroensatit P, Tawiwong W, Thepmanee O, Saenlao S, Aojanepong J, Hunsajarupan P, Sajjachareonpong K, Punyatanasakchai P, Maneepalviratn S, Jetsawangsri U, Herrero J, Cruz M, Tejera A, Rubio I, Romero JL, Meseguer M, Nordhoff V, Schlatt S, Schuring AN, Kiesel L, Kliesch S, Azambuja R, Okada L, Lazzari V, Dorfman L, Michelon J, Badalotti M, Badalotti F, Petracco A, Schwarzer C, Esteves TC, Nordhoff V, Schlatt S, Boiani M, Versieren K, Heindryckx B, De Croo I, Lierman S, De Vos W, Van den Abbeel E, Gerris J, De Sutter P, Milacic I, Borogovac D, Veljkovic M, Arsic B, Jovic Bojovic D, Lekic D, Pavlovic D, Garalejic E, Guglielmo MC, Coticchio G, Albertini DF, Dal Canto M, Brambillasca F, Mignini Renzini M, De Ponti E, Fadini R, Sanges F, Talevi R, Capalbo A, Papini L, Mollo V, Ubaldi FM, Rienzi LF, Gualtieri R, Albuz FK, Guzman L, Orteg C, Gilchrist RB, Devroey P, De Vos M, Smitz J, Choi J, Lee H, Ku S, Kim S, Choi Y, Kim J, Moon S, Demilly E, Assou S, Moussaddykine S, Dechaud H, Hamamah S, Takisawa T, Doshida M, Hattori H, Nakamura Y, Kyoya T, Shibuya Y, Nakajo Y, Tasaka A, Toya M, Kyono K, Novo S, Penon O, Gomez R, Barrios L, Duch M, Santalo J, Esteve J, Nogues C, Plaza JA, Perez-Garcia L, Ibanez E, Chavez S, Loewke K, Behr B, Reijo Pera R, Huang S, Wang H, Soong Y, Chang C, Okimura T, Kuwayama M, Mori C, Morita M, Uchiyama K, Aono F, Kato K, Takehara Y, Kato O, Minasi M, Casciani V, Scarselli F, Rubino P, Colasante A, Arizzi L, Litwicka K, Ferrero S, Mencacci C, Piscitelli C, Giannini P, Cucinelli F, Tocci A, Nagy ZP, Greco E, Wydooghe E, Vandaele L, Dewulf J, Van den Abbeel E, De Sutter P, Van Soom A, Moon JH, Son WY, Mahfoudh A, Henderson S, Jin SG, Shalom-Paz E, Dahan M, Holzer H, Mahmoud K, Triki-Hmam C, Terras K, Zhioua F, Hfaiedh T, Ben Aribia MH, Otsubo H, Egashira A, Tanaka K, Matsuguma T, Murakami M, Murakami K, Otsuka M, Yoshioka N, Araki Y, Kuramoto T, Smit JG, Sterrenburg MD, Eijkemans MJC, Al-Inany HG, Youssef MAFM, Broekmans FJM, Willoughby K, DiPaolo L, Deys L, Lagunov A, Amin S, Faghih M, Hughes E, Karnis M, Ashkar F, King WA, Neal MS, Antonova I, Veleva L, Petkova L, Shterev A, Nogales C, Martinez E, Ariza M, Cernuda D, Gaytan M, Linan A, Guillen A, Bronet F, Cottin V, Fabian D, Allemann F, Koller A, Spira JC, Agudo D, Martinez-Burgos M, Arnanz A, Basile N, Rodriguez A, Bronet F, Cho YS, Filioli Uranio M, Ambruosi B, Paternoster MS, Totaro P, Sardanelli AM, Dell'Aquila ME, Zollner U, Hofmann T, Zollner KP, Kovacic B, Roglic P, Vlaisavljevic V, Sole M, Santalo J, Boada M, Coroleu B, Veiga A, Martiny G, Molinari M, Revelli A, Chimote NM, Chimote M, Mehta B, Chimote NN, Sheikh N, Nath N, Mukherjee A, Rakic K, Reljic M, Kovacic B, Vlaisavljevic V, Ingerslev HJ, Kirkegaard K, Hindkjaer J, Grondahl ML, Kesmodel US, Agerholm I, Kitasaka H, Fukunaga N, Nagai R, Yoshimura T, Tamura F, Kitamura K, Hasegawa N, Nakayama K, Katou M, Itoi F, Asano E, Deguchi N, Ooyama K, Hashiba Y, Asada Y, Michaeli M, Rotfarb N, Karchovsky E, Ruzov O, Atamny R, Slush K, Fainaru O, Ellenbogen A, Chekuri S, Chaisrisawatsuk T, Chen P, Pangestu M, Jansen S, Catt S, Molinari E, Racca C, Revelli A, Ryu C, Kang S, Lee J, Chung D, Roh S, Chi H, Yokota Y, Yokota M, Yokota H, Sato S, Nakagawa M, Komatsubara M, Makita M, Araki Y, Yoshimura T, Asada Y, Fukunaga N, Nagai R, Kitasaka H, Itoi F, Tamura F, Kitamura K, Hasegawa N, Katou M, Nakayama K, Asano E, Deguchi N, Oyama K, Hashiba Y, Naruse K, Kilani S, Chapman MG, Kwik M, Chapman M, Guven S, Odaci E, Yildirim O, Kart C, Unsal MA, Yulug E, Isachenko E, Maettner R, Strehler E, Isachenko V, Hancke K, Kreienberg R, Sterzik K, Coticchio G, Guglielmo MC, Dal Canto M, Albertini DF, Brambillasca F, Mignini Renzini M, Fadini R, Zheng XY, Wang LN, Liu P, Qiao J, Inoue F, Dashtizad M, Wahid H, Rosnina Y, Daliri M, Hajarian H, Akbarpour M, Abbas Mazni O, Knez K, Tomaevic T, Vrtacnik Bokal E, Zorn B, Virant Klun I, Koster M, Liebenthron J, Nicolov A, van der Ven K, van der Ven H, Montag M, Fayazi M, Salehnia M, Beigi Boroujeni M, Khansarinejad B, Deignan K, Emerson G, Mocanu E, Wang JJ, Andonov M, Linara E, Ahuja KK, Nachef S, Figueira RCS, Braga DPAF, Setti AS, Iaconelli Jr. A, Pasqualotto FF, Borges Jr. E, Pasqualotto E, Borges Jr. E, Pasqualotto FF, Chang CC, Bernal DP, Elliott TA, Shapiro DB, Toledo AA, Nagy ZP, Economou K, Davies S, Argyrou M, Doriza S, Sisi P, Moschopoulou M, Karagianni A, Mendorou C, Polidoropoulos N, Papanicopoulos C, Stefanis P, Karamalegos C, Cazlaris H, Koutsilieris M, Mastrominas M, Gotts S, Doshi A, Harper J, Serhal P, Borini A, Guzeloglu-Kayisli O, Bianchi V, Seli E, Bianchi V, Lappi M, Bonu MA, Borini A, Mizuta S, Hashimoto H, Kuroda Y, Matsumoto Y, Mizusawa Y, Ogata S, Yamada S, Kokeguchi S, Noda Y, Shiotani M, Stojkovic M, Ilic M, Markovic N, Stojkovic P, Feng G, Zhang B, Zhou H, Zhou L, Gan X, Qin X, Shu J, Wu F, Molina Botella I, Lazaro Ibanez E, Debon Aucejo A, Pertusa J, Fernandez Colom PJ, Pellicer A, Li C, Zhang Y, Cui Y, Zhao H, Liu J, Oliveira JBA, Petersen CG, Mauri AL, Massaro FC, Silva LFI, Ricci J, Cavagna M, Pontes A, Vagnini LD, Baruffi RLR, Franco Jr. JG, Massaro FC, Petersen CG, Vagnini LD, Mauri AL, Silva LFI, Felipe V, Cavagna M, Pontes A, Baruffi RLR, Oliveira JBA, Franco Jr. JG, Vilela M, Tiveron M, Lombardi C, Viglierchio MI, Marconi G, Rawe V, Wale PL, Gardner DK, Nakagawa K, Sugiyama R, Nishi Y, Kuribayashi Y, Jyuen H, Yamashiro E, Shirai A, Sugiyama R, Inoue M, Salehnia M, Hovatta O, Tohonen V, Inzunza J, Parmegiani L, Cognigni GE, Bernardi S, Ciampaglia W, Infante FE, Tabarelli de Fatis C, Pocognoli P, Arnone A, Maccarini AM, Troilo E, Filicori M, Radwan P, Polac I, Borowiecka M, Bijak M, Radwan M. POSTER VIEWING SESSION - EMBRYOLOGY. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.79] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ahmed AMA, Allam MF, Habil ES, Metwally AM, Ibrahiem NA, Radwan M, El-Gaafary MM, Afifi A, Gadallah MA. Development of practice guidelines for hemodialysis in Egypt. Indian J Nephrol 2010; 20:193-202. [PMID: 21206681 PMCID: PMC3008948 DOI: 10.4103/0971-4065.73450] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Although hemodialysis is the main modaility of treatment of end-stage renal disease, no practice guidelines are available in Egypt. Applying international guidelines for hemodialysis would not be suitable or feasible, because of different health system and lack of resources. The aim of this project was the development of evidence- and consensus-based clinical practice guidelines for hemodialysis in Egypt. The Egyptian guidelines were adopted from the standards developed by The College of Physicians and Surgeons of Alberta (Canada), The National Kidney Foundation (USA), The Clinical Standards Board for Scotland (Scotland), and The College of Physicians and Surgeons of Ontario (Canada). In addition, the guidelines published in Oxford Handbook of Dialysis were reviewed. Thereafter, a panel of Egyptian experts in the field of nephrology and hemodialysis was selected and invited to participate in this project. The Delphi technique was applied to build up the consensus among the experts on the formulated guidelines. The final version of the Egyptian Hemodialysis Practice Guidelines included five main sections; personnel, patient care practices, infection prevention and control, facility, and documentation/records. A consensus on practice guidelines for hemodialysis has been successfully produced and is supported by levels of evidence. The 12 Egyptian experts who participated in the Delphi technique and the reviewers assured the completeness and acceptability of the developed practice guidelines. Also, including experts from the university hospitals together with the Directorates of Cairo and Giza Health Affairs of the Egyptian Ministry of Health (MOH) avoided conflicts between clinical recommendations and feasible application in the MOH hemodialysis facilities.
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Affiliation(s)
- A. M. A. Ahmed
- National Research Center, Ain Shams University, Cairo, Egypt
| | - Mohd. F. Allam
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - E. S. Habil
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - A. M. Metwally
- National Research Center, Ain Shams University, Cairo, Egypt
| | - N. A. Ibrahiem
- National Research Center, Ain Shams University, Cairo, Egypt
| | - M. Radwan
- National Research Center, Ain Shams University, Cairo, Egypt
| | | | - A. Afifi
- Department of Nephrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - M. A. Gadallah
- National Research Center, Ain Shams University, Cairo, Egypt
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Allam M, Habil ES, Metwally AM, Ibrahiem NA, Radwan M, El-Gaafary MM, Afifi A, Gadallah MA, Ahmed AMA. Development of practice guidelines for hemodialysis in Egypt. Indian J Nephrol 2010; 20:193. [DOI: doi 10.4103/0971-4065.73450] [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: 10/31/2023] Open
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Sipak-Szmigiel O, Cybulski C, Wokołorczyk D, Lubiński J, Kurzawa R, Baczkowski T, Radwan M, Radwan P, Ronin-Walknowska E. HLA-G polymorphism and in vitro fertilization failure in a Polish population. ACTA ACUST UNITED AC 2009; 73:348-52. [PMID: 19317745 DOI: 10.1111/j.1399-0039.2008.01205.x] [Citation(s) in RCA: 21] [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: 11/30/2022]
Abstract
To investigate whether human leukocyte antigen-G (HLA-G) gene polymorphism is associated with in vitro fertilization (IVF) failure, we sequenced exons 2-4 of the HLA-G gene in 50 couples with three or more IVFs (including 10 couples with five or more IVFs) and 58 control fertile couples from a Polish population. Of the 10 different HLA-G alleles identified in our study subjects, neither allele was found to be associated with IVF. We also genotyped 50 couples with IVF and 71 control couples for the -725C>G variant in the promoter region and the 14 bp insertion or deletion polymorphism in the 3' untranslated region of the HLA-G gene. The frequency of -725GG or GC genotype in women with IVF and in control fertile women was similar [26% vs 25.3%; odds ratio (OR) = 1.0; P = 1.0]. The 14 bp ins/ins or ins/del genotype was more common in women with IVF than in control women (76.9% vs 59.1%; OR 2.4; P = 0.03), but the difference was not significant after Bonferroni correction for multiple comparisons. The frequency of the ins/ins or ins/del genotype was particularly high (90%) in women who experienced five or more IVFs (OR = 6.2; P = 0.08), but again, the excess was not statistically significant, possibly because of small sample sizes. These results are in line with functional studies that show lower levels of HLA-G mRNA and protein related to the HLA-G allele including the 14 bp sequence and suggest that the insertion allele may be associated with an increased risk of IVF.
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Affiliation(s)
- O Sipak-Szmigiel
- Department of Feto-Maternal Medicine, Pomeranian Medical University, ul. Unii Lubelskiej 1, Szczecin, Poland.
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Laleman W, Radwan M, Van Steenbergen W. A rare and reversible cause of acute dilatation of the pancreatic duct. Endoscopy 2008; 40 Suppl 2:E183. [PMID: 18668468 DOI: 10.1055/s-2008-1077335] [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: 12/10/2022]
Affiliation(s)
- W Laleman
- Unit for Liver, Biliary and Pancreatic Diseases, University Hospital Gasthuisberg, Catholic University of Leuven, Leuven, Belgium.
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Radwan M, Maciolek-Blewniewska G, Malinowski A. Spontaneous heterotopic pregnancy and acute appendicitis treated by laparoscopy. Int J Gynaecol Obstet 2007; 96:129. [PMID: 17239385 DOI: 10.1016/j.ijgo.2006.09.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2006] [Revised: 09/23/2006] [Accepted: 09/28/2006] [Indexed: 11/17/2022]
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Hammadeh ME, Radwan M, Al-Hasani S, Micu R, Rosenbaum P, Lorenz M, Schmidt W. Comparison of reactive oxygen species concentration in seminal plasma and semen parameters in partners of pregnant and non-pregnant patients after IVF/ICSI. Reprod Biomed Online 2007; 13:696-706. [PMID: 17169183 DOI: 10.1016/s1472-6483(10)60661-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [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
The aims of this study were (i) to determine and compare the concentration of reactive oxygen species (ROS) and total antioxidant status (TAS) in seminal plasma and sperm parameters of the male partners of patients undergoing IVF or intracytoplasmic sperm injection (ICSI) treatment and (ii) to establish the relationship between ROS and TAS concentrations and sperm quality and their effect on fertilization and pregnancy rate of patients who achieved a pregnancy and those who were unsuccessful. Twenty-six IVF and 22 ICSI patients were included in this study. The ROS concentration in seminal plasma and sperm concentration, vitality (eosin test), motility, morphology, membrane integrity (HOS test), maturity (chromomycin, CMA3) and DNA fragmentation (TUNEL) results and their relationship to fertilization and pregnancy were analysed. ROS concentrations were similar regarding the seminal plasma of male partners of patients who achieved a pregnancy and those who were unsuccessful. The other semen parameters, concentration, motility, vitality, membrane and DNA integrity, were comparable in both groups. However, both groups demonstrated a negative correlation between ROS concentration and sperm vitality, membrane integrity and morphology. Moreover, an inverse correlation was found between TUNEL, vitality, and membrane integrity. In conclusion, ROS concentration in seminal plasma affects the quality of spermatozoa. A negative correlation between the ROS concentration in seminal plasma and fertilization rate in both IVF/ICSI programmes was shown.
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Affiliation(s)
- M E Hammadeh
- Department of Obstetrics and Gynaecology, University of Saarlandes 66421 Homburg/Saar, Germany.
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Abdel-aziz YA, Yehia MH, El-Salam FAA, Radwan M. Periodic motions of spinning rigid spacecraft under influence of gravitational and magnetic fields. Appl Math Mech 2006; 27:1061-1069. [DOI: 10.1007/s10483-006-0806-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Radwan M, Bahgat M. Novel growth of aluminium nitride nanowires. J Nanosci Nanotechnol 2006; 6:558-61. [PMID: 16573061 DOI: 10.1166/jnn.2006.102] [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] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This work describes novel growth of aluminium nitride (AIN) nanowires by nitridation of a mixture consists of aluminium and ammonium chloride powders (Al:NH4Cl = 1.5:1 weight ratio) at 1000 degrees C for 1 h in flowing nitrogen gas (1 l/min). XRD analysis of the product showed the formation of pure hexagonal AIN. SEM micrographs of as-synthesized product revealed the growth of homogeneous AIN nanowires (phi 40-150 nm). No droplets were observed at the tips of obtained nanowires which suggests that they were grown mainly by a vapor-phase reactions mechanism. Thermodynamic analysis of possible intermediate reactions in the operating temperatures range illustrates that these nanowires could be grown via spontaneous vapor-phase chlorination-nitridation sequences.
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Affiliation(s)
- M Radwan
- Central Metallurgical Research and Development Institute (CMRDI), PD. Box 87 Helwan, Cairo 11421, Egypt
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Abd El-Salam F, Ahmed M, Radwan M. The post-Newtonian effects in the critical inclination problem in artificial satellite theory. Applied Mathematics and Computation 2005; 161:813-823. [DOI: 10.1016/j.amc.2003.12.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Radwan M. Structural characterization of diglycol carbonate and polycarbonate solid state nuclear track detectors irradiated with infrared laser pulses. Acta Crystallogr A 2002. [DOI: 10.1107/s0108767302098835] [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: 11/10/2022] Open
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Abstract
In this study, the transport and fate of nitrate within the soil profile and nitrate leaching to drains were analyzed by comparing historic field data with the simulation results of the DRAINMOD model. The nitrogen version of DRAINMOD was used to simulate the performance of the nitrogen transport and transformation of the Hooibeekhoeve experiment, situated in the sandy region of the Kempen (Belgium) and conducted for a 30-year (1969-1998) period. In the analysis, a continuous cropping with maize was assumed. Comparisons between experimentally measured and simulated state variables indicate that the nitrate concentrations in the soil and nitrate leaching to drains are controlled by the fertilizer practice, the initial conditions, and the rainfall depth and distribution. Furthermore, the study reveals that the model used gives a fair description of the nitrogen dynamics in the soil and subsurface drainage at field scale. From the comparative analysis between experimental data and simulation results it can also be concluded that the model after calibration is a useful tool to optimize as a function of the combination "climate-crop-soil-bottom boundary condition" the nitrogen application strategy resulting in an acceptable level of nitrate leaching for the environment.
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Affiliation(s)
- A El-Sadek
- Katholieke Universiteit Leuven, Hyddrauliccs Laboratory, Faculty of Engineering, Heverlee, Belgium.
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Abstract
To model catchment surface water quantity and quality, different model types are available. They vary from detailed physically based models to simplified conceptual and empirical models. The most appropriate model type for a certain application depends on the project objectives and the data availability. The detailed models are very useful for short-term simulations of representative events. They cannot be used for long-term statistical information or as a management tool. For those purposes, more simplified (conceptual or meta-) models must be used. In this study, nitrogen dynamics are modeled in a river in Flanders. Nitrogen sources from agricultural leaching and domestic point sources are considered. Based on this input, concentrations of ammonium (NH4-N) and nitrate (NO3-N) in the river water are modeled in MIKE 11 by taking into consideration advection and dispersion and the most important biological and chemical processes. Model calibration was done on the basis of available measured water quality data. To this detailed model, a more simplified model was calibrated with the objective to more easily yield long-term simulation results that can be used in a statistical analysis. The results show that the conceptual simplified model is 1800 times faster than the MIKE 11 model. Moreover the two models have almost the same accuracy. The detailed models are recommended for short-term simulations unless there are enough data for model input and model parameters. The conceptual simplified model is recommended for long-term simulations.
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Affiliation(s)
- M Radwan
- K.U. Leuven, Hydraulics Laboratory, Faculty of Engineering, Heverlee, Belgium.
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Leweke M, Kampmann C, Radwan M, Dietrich DE, Johannes S, Emrich HM, Münte TF. The effects of tetrahydrocannabinol on the recognition of emotionally charged words: an analysis using event-related brain potentials. Neuropsychobiology 2000; 37:104-11. [PMID: 9566276 DOI: 10.1159/000026487] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [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: 11/19/2022]
Abstract
The effects of synthetic tetrahydrocannabinol (THC) on event-related brain potentials (ERPs) were assessed in 19 healthy male volunteers while they performed a visual continuous word recognition task. The study used a double-blind cross-over design. Specifically, word lists were manipulated to contain an equal number of emotionally neutral, negative, and positive words. Most words were repeated after several intervening items with the subject's task to classify each word as old (previously seen) or new. Behaviorally, a decrease in recognition rate was observed under THC but no influence of the emotional charge of a word on recognition rate was seen. The ERPs showed a typical difference between old and new words taking the form of an enhanced positivity for old words beginning 250 ms poststimulus. The effects of THC were confined to the positive words, for which an enhancement of the positivity to the old words was seen. This effect was interpreted in terms of a congruity of the drug-induced mood state and the material to be recognized. The dissociation between ERPs and behavioral indices suggested that the former primarily reflect implicit memory processes.
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Affiliation(s)
- M Leweke
- Department of Clinical Psychiatry, Medical School of Hannover, Germany
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Abstract
The physiological and pathophysiological roles of the central nervous endogenous cannabinoid system are not completely understood, but still represent a challenge in basic neurobiological, cognitive, and psychiatric research. The system has been implicated in the pathogenesis of schizophrenia. Binocular depth inversion, an illusion of visual perception, provides a model of impaired perception during psychotic states. Using this model the effects of nabilone, a psychoactive synthetic 9-trans-ketocannabinoid, and of cannabidiol, the main natural component of herbal cannabis, and a combined application of both substances on binocular depth inversion and behavioural states were investigated in nine healthy male volunteers. The time course of the effects of both substances on binocular depth inversion was analysed after oral administration using three different groups of natural stimuli. A significant impairment of binocular depth perception was found when nabilone was administered, but combined application with cannabidiol revealed somewhat reduced effects on binocular depth inversion. The influence of psychoactive cannabinoids on this perceptual model and the role of the endogenous cannabinoid system in visual information processing are discussed.
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Affiliation(s)
- F M Leweke
- Department of Clinical Psychiatry and Psychotherapy, Medizinische Hochschule Hannover, D-30623, Hannover, Germany.
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Abstract
Thirty-three schizophrenic inpatients aged 45.3 +/- 13.5 years who had been found not guilty of homicide by reason of insanity were compared with 28 schizophrenic patients matched for age, sex and duration of disease who had not committed any crime. Statistical analysis revealed a high rate in the study group of individual factors associated with aggression, such as alcohol abuse, previous contact with the police, aggressive behavior and threats (P < 0.05). Significantly more of them were also immigrants (P < 0.05). There was no between-group difference in familial factors. These findings support earlier studies indicating that schizophrenic patients with the profile of alcoholism, aggressiveness and foreign country of origin are at high risk of homicidal behavior.
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Affiliation(s)
- A Valevski
- Geha Psychiatric Hospital, Rabin Medical Center, Beilinson Campus, Petah Tiqva, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Shiloh R, Zemishlany Z, Aizenberg D, Radwan M, Schwartz B, Dorfman-Etrog P, Modai I, Khaikin M, Weizman A. Sulpiride augmentation in people with schizophrenia partially responsive to clozapine. A double-blind, placebo-controlled study. Br J Psychiatry 1997; 171:569-73. [PMID: 9519099 DOI: 10.1192/bjp.171.6.569] [Citation(s) in RCA: 186] [Impact Index Per Article: 6.9] [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: 02/06/2023]
Abstract
BACKGROUND We hypothesised that a combined regimen of clozapine, a relatively weak D2-dopaminergic antagonist, and sulpiride, a selective D2 blocker, would demonstrate a greater antipsychotic efficacy by enhancing the D2 blockade of clozapine. METHOD Twenty-eight people with schizophrenia, previously unresponsive to typical antipsychotics and only partially responsive to current treatment with clozapine, received, double-blind, 600 mg/day sulpiride or placebo, in addition to an ongoing clozapine treatment. The clinical status was evaluated before, during, and at the end of 10 weeks of sulpiride addition using the Brief Psychiatric Rating Scale (BPRS), Scale for the Assessment of Positive Symptoms (SAPS), Scale for the Assessment of Negative Symptoms, and Hamilton Rating Scale for Depression. RESULTS The clozapine-sulpiride group exhibited substantially greater and significant improvements in positive and negative psychotic symptoms. About half of them, characterised by a younger age and lower baseline SAPS scores, had a mean reduction of 42.4 and 50.4% in their BPRS and SAPS scores, respectively. CONCLUSIONS A subgroup of patients with chronic schizophrenia may substantially benefit from sulpiride addition to clozapine.
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Affiliation(s)
- R Shiloh
- Geha Psychiatric Hospital, Rabin Medical Center, Petah Tiqva, Israel
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Hirschmann S, Apter A, Weizmann A, Radwan M. [Anorexia nervosa beginning after the menopause]. Harefuah 1996; 131:10-2, 71. [PMID: 8854468] [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: 02/02/2023]
Abstract
Anorexia nervosa (AN) in older patients is not often described. We present a 70-year-old woman with AN which started at the age of 50 after her menopause. We suggest that AN starting after the menopause is a unique disturbance with characteristics different from those in younger age groups. The causes of anorexia in the older patient and its special dynamics should be recognized. It may be necessary to create a different diagnostic system and devise special treatment for AN in post-menopausal women.
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Affiliation(s)
- S Hirschmann
- Geha Psychiatric Hospital, Beilinson Medical Center, Petah Tikva
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Spivak B, Karny N, Katz G, Radwan M, Apter A, Master R, Weizman A. Functional hemisphere imbalance in patients with paranoid or disorganized schizophrenia. Eur Psychiatry 1996; 11:175-9. [DOI: 10.1016/0924-9338(96)88387-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/1995] [Accepted: 11/08/1995] [Indexed: 11/28/2022] Open
Abstract
SummaryWe assessed hemisphere function in right-handed male chronic schizophrenic patients using dichotic listening tests. We evaluated digit, tonic and transitional tests in patients with paranoid schizophrenia (n = 8), patients with disorganized schizophrenia (n = 8) and in control subjects (n = 8). The dichotic listening analysis discriminated between paranoid and disorganized schizophrenia. In disorganized schizophrenia, functional impairment of both hemispheres was demonstrated, while in paranoid schizophrenia dysfunction was more prominent in the right hemisphere. These results indicate the possible involvement of right hemisphere dysfunction in the pathophysiology of chronic paranoid schizophrenia, in contrast to dysfunction of both hemispheres in chronic disorganized schizophrenia.
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Abstract
BACKGROUND Cyproheptadine, an antiserotonergic agent, was used to treat neuroleptic-induced akathisia. METHOD In an open clinical trial 17 neuroleptic-treated patients with akathisia were administered cyproheptadine (16 mg/day) over 4 days. Assessment of akathisia, psychosis and depression were monitored by BAS, BPRS and HAM-D. RESULTS All subjects showed improvement in the severity of akathisia, which in the majority (15/17) was of a marked degree. There was no aggravation of psychosis or depression. Symptoms of akathisia returned when cyproheptadine was discontinued. CONCLUSIONS Cyproheptadine may be useful in neuroleptic-induced akathisia.
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Affiliation(s)
- D Weiss
- Gehah Psychiatric Hospital, Petah Tiqva, Israel
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Abstract
We determined the presence of antinuclear autoantibodies (ANA), antinative DNA and histone-reactive ANA in 3 groups of chronic schizophrenic patients (n=85): haloperidol-treated patients (for at least 3 months) (n=35), drug-free for at least 3 months (n=35) and neuroleptic-naive patients (n=15). The autoantibody titers were compared with those of healthy controls (n=37). A significantly higher frequency of positive ANA was found among chronic schizophrenic patients (approximately 20%) as compared with the controls (approximately 5%), irrespective of drug treatment, sex and age. No antinative ANA autoantibodies or histone reactive ANA were detected in either schizophrenic patients or controls. Further studies are needed to isolate and characterize in ANA-positive schizophrenic patients a putative specific ANA profile.
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Affiliation(s)
- B Spivak
- Research Unit, Ness Ziona Government Psychiatric Hospital, Israel
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Mintz M, Hermesh H, Glicksohn J, Munitz H, Radwan M. First month of neuroleptic treatment in schizophrenia: only partial normalization of the late positive components of visual ERP. Biol Psychiatry 1995; 37:402-9. [PMID: 7772649 DOI: 10.1016/0006-3223(94)00145-s] [Citation(s) in RCA: 9] [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: 01/27/2023]
Abstract
In a previous study we recorded visual event-related potentials (ERP) in drug-naive schizophrenics during passive-attention and active-attention tasks. Patients, compared to normal controls, had much lower late positive components (LPC) in both sessions, but nearly normal LPC increase from passive to active task. The present sample consisted of drug-naive and drug-free patients who were tested before and during the first month of neuroleptic treatment. Neuroleptics initiated gradual amelioration of psychiatric symptoms expressed by reduced Brief Psychiatric Rating Scale (BPRS) scores. Schizophrenics compared to controls showed a session-related increase in LPC amplitude, but this process of LPC recovery was too minor to fully normalize the low LPC amplitudes in patients. Furthermore, the treatment either did not improve or even reduce the LPC reaction to the active-attention task. These findings indicate that normalization of low LPC in schizophrenia might require a long period of treatment, and that patients' reduced LPC reactivity to the task might be contributed, rather than treated, by neuroleptics.
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Affiliation(s)
- M Mintz
- Department of Psychology, Tel-Aviv University, Ramat-Aviv, Israel
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Abstract
A patient with posttraumatic stress disorder (PTSD) had several episodes of catatonia in the past 44 years. These episodes were characterized by a sudden onset of intense excitement, mild pyrexia, often moderate elevation of serum creatinine phosphokinase and the development of a full catatonic state. We could not relate the symptomatology exhibited to any one of the accepted etiologies of catatonia. We assume, following careful evaluation of the clinical picture, and thorough biochemical and imaging work-up, that in this case the catatonic states represented an overwhelming psychic response to associated traumatic recollections, bringing to extreme the avoidance, numbness and motor responses usually encountered in PTSD.
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Affiliation(s)
- R Shiloh
- Beilinson Medical Center, Geha Psychiatric Hospital, Petah Tiqva, Israel
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Akef ZA, Radwan M, Hafez AS. Evaluation of expanded program on immunization during the first year of life in Abu Dhabi. J Egypt Public Health Assoc 1995; 70:57-83. [PMID: 17214201] [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: 05/13/2023]
Abstract
This study was intended to highlight the program of vaccination in the first year of life against the Expanded Program on Immunization (EPI)-target diseases and to determine the trend of these diseases in Abu Dhabi during 1984-1989. The data were collected from annual reports of Ministry of Health. This retrospective study pointed out to the following results: (1) The average vaccination coverage (percent) during the first year of life against EPI-Target diseases increased gradually during 1984, 1986, 1987, 1988, 1989. (2) The vaccination coverage (percent) during the first year of life using BCG and measles vaccines are increased significantly (p < 0.001) during 1985-1989 compared with 1984. (3) The vaccination coverage (percent) during the first year of life using OPV and DPT at the third dose are increased significantly (p < 0.05) during 1987-1989 compared with 1984. (4) The reported cases of measles and its incidence rate consequently decreased during 1988-1989 compared with 1987 and the differences are statistically significant (p < 0.001). The reported cases of diphtheria and its incidence rate show significant increase (p < 0.01) during 1988 compared with 1984. Other EPI target diseases do not show any statistically significant difference (p > 0.05) during 1985-1989 compared with 1984. Based on this study it can be concluded that with increase in average vaccination coverage (percent) from 58.5% in 1984 to 82.9% in 1989, the number of reported cases of EPI target diseases decreased.
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Affiliation(s)
- Z A Akef
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University
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Abstract
Hyperemesis gravidarum is a potentially dangerous disorder of pregnancy characterized by severe and protracted vomiting. It is suggested that psychosocial factors may have a role in determining whether the pregnant woman experiences a transient spell of mild vomiting or progresses towards the much rarer but more significant pernicious vomiting. Psychotherapy, hypnotherapy and behavior therapy have been reported to contribute to the treatment of patients with hyperemesis gravidarum. A review of the etiological factors as well as of the therapeutic approaches is presented.
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Affiliation(s)
- I Iancu
- Outpatient Psychiatric Service, Sheba Medical Center, Tel Hashomer, Israel
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