113 research outputs found

    Prevalence of Dental Anomalies in an Adult Dentate Najaf /Iraqi Population by Using Digital Panoramic Radiographs

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    مقدمه: أجريت دراسات مختلفة عبر مجموعات سكانية مختلفة وأظهرت درجات متفاوتة من انتشار تشوهات الأسنان. كان الهدف من هذه الدراسة هو تقييم انتشار تشوهات الأسنان بين سكان النجف / العراق. طرق العمل:    تم إجراء دراسه للاشعات البانوراميه الاساسيه لـ 750 شخصًا تتراوح أعمارهم بين 18 و 40 عامًا ، وتم فحص أسنان وفكين المرضى بالأشعة من حيث العدد والحجم والتركيب والموقع وشكل الأسنان . بالإضافة إلى  ذلك جود حجر فى اللب والتشوهات غير الشفافة في الفك تمت دراستها. تم تحليل النتائج باستعمال اختبار كاى سكوير   النتائج: وأظهرت النتائج أن نسبة انتشار تشوهات الأسنان كانت (32.8٪). والتشوهات في عدد الأسنان كانت (4.19٪) ، الحجم (10٪) ، التركيب (0٪) ، الموقع (50.33٪) ، الشكل (27.74٪) ، حجر فى اللب (5.48٪) ، والتشوهات الفكيه غير الشفافة شكلت (2.26٪).  كان أكثر أنواع التشوهات السنية شيوعًا هو تشوهات موقع الأسنان ، و 55.48٪ من الحالات الشاذة للأسنان كانت مرتبطة بأسنان الفك العلوي ، و 44.52٪ كانت مرتبطة بأسنان الفك السفلي.     كانت الأسنان الزائدة ، والأسنان الخلقية المفقودة ، والتبديل بالموقع ، والتخدد الداخلى والخارجى  كانت مرتبطة في الغالب بالقواطع العلوية ، بينما لوحظ الإزاحة بالموقع في الغالب مرتبطة بالأنياب العلوية. ارتبطت الأضراس العلوية في الغالب بحجر اللب والجذور المندمجة وصغر الحجم السنى ارتبطت الجذور الزائدة في الغالب مع الضواحك السفلية ، في حين أن الانقلاب ، والانحشار ، والتقوس ، وأسنان الثور ، ولآلئ المينا ترتبط في الغالب بالأضراس السفلية. شوهدت جميع التشوهات الفكيه غير الشفافة مصاحبة للفك السفلي فقط. الاستنتاجات: يعد التشخيص المبكر وتحديد مدى انتشار تشوهات الأسنان أمرًا مهمًا في تخطيط العلاج للمرضى.Background:    Studies were done across different populations showed a varying degrees of prevalence of dental anomalies. The present study was aimed to evalu­ate the dental anomalies prevalence for Najaf/Iraq population.  Methods:    Analysis was done for the standard Orthopantomograph of 750 subjects with ages ranging between 18 and 40 years. The teeth and jaws were examined radiographically for number, size, structure, position, and shape of the teeth. In addition, the presence of pulp stone and radio-opaque dental anomalies in the jaw was also studied. Chi-squared test was carried for the data analysis. Results:   The prevalence of dental anomalies was (32.8%).  Anomalies in number of teeth was (4.19%), size (10%), structure (0%), position (50.33%), shape (27.74%), pulp stone (5.48%), and the jaws radio-opaque anomalies constitutes (2.26%). The most common type of dental anomalies was anomalies of tooth position, and 55.48% of dental anomalies were associated with the maxillary teeth, and 44.52% were associated with the mandibular teeth.     The supernumerary teeth, congenital missing teeth, transposition, dens evaginatus, and dens invaginatus were mostly associated with the upper incisors, while the displacement was mostly seen associated with the upper canines.  Upper molars were mostly associated with pulp stone, fused roots and microdontia.    The supernumerary roots were mostly associated with lower premolars, while inversion, impaction, dilaceration, taurodontism, and enamel pearls are mostly associated with lower molars. All radio-opaque jaws anomalies were seen associated with the lower jaw only. Conclusion:   The determination of prevalence of dental anomalies is important for the early diagnosis and treatment planning of patients

    Endometrial carcinoma located in the right septate uterus cavity: a case report

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    Endometrial cancer in patients with uterine congenital malformations is exceptional and there are only a few rare cases published in the literature. We report the case of a 67 years-old patient with an endometrial cancer located in the right cavity of a complete septate uterus.Pan African Medical Journal 2015; 2

    Persistance du 5ème arc aortique associé à une interruption de l’arche aortique

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    Les auteurs rapportent un cas de persistance du 5ème arc aortique associé à une interruption totale de l'arche aortique. Ce cas clinique montre le piège diagnostic posé par la persistance du 5ème arc aortique et son effet bénéfique hémodynamique. Le tableau clinique était trompeur en préopératoire en raison de la persistance des pouls fémoraux et des signes cliniques d'un shunt gauche-droite via un large canal artériel. Le diagnostic a été redressé en peropératoire grâce au monitorage de la pression artérielle par un cathéter placé dans l'artère fémorale

    Anévrysme ventriculaire gauche et communication interventriculaire compliquant un infarctus du myocarde

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    L'association d'une communication interventriculaire post infarctus du myocarde et d'un anévrysme du  ventricule gauche chez un même patient est extrêmement rare et survient habituellement durant la première semaine qui suit un infarctus du myocarde. Nous rapportons le cas insolite d'un patient âgé de 63 ans, admis pour choc cardiogénique en rapport avec une communication inter ventriculaire apicale et un anévrysme  ventriculaire gauche causés par un infarctus du myocarde antérieur. La correction chirurgicale a consisté en une fermeture du défect septal par un patch en dacron via une ventriculotomie gauche associée à une  anévrysectomie et un mono pontage coronaire. Cette observation illustre d'une part la rareté de l'association communication inter ventriculaire-anévrysme ventriculaire gauche post infarctus du myocarde, et d'autre part l'efficacité du traitement chirurgical qui reste la seule option salvatrice pour cette pathologie. Key words: Infarctus du myocarde, anévrysme ventriculaire gauche, communication inter ventriculair

    Early results for active infective endocarditis

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    Introduction: Cardiac surgery is frequently needed during active phase of infective endocarditis (IE). The purpose of this study was to analyze the immediate and late results and determine the risk factors for death.Methods: We retrospectively reviewed 101 patients with IE operated in the active phase. The mean age was 40.5 ± 12.5 years. 16 patients (15.8%) were diagnosed with prosthetic valve endocarditis (PVE). 81 (80.9%) were in NYHA functional class III-IV. Blood cultures were positive in only 24 cases (23.9%).Results: in-hospital mortality rate was 17.9% (18 cases). Multivariate analysis indentified five determinant predictor factors: congestive heart failure (CHF), renal insufficiency, high Euroscore, prolonged cardiopulmonary bypass time (> 120 min) and long ICU stay. The median follow-up period was 4.2 (2-6.5) years. Overall survival rate for all patients who survived surgery was 97% at 5 years and 91% at 10 years.Conclusion: Despite high in-hospital mortality rate, when patients receive operation early in the active phase of their illness, late outcome may be good.Keywords: Infective endocarditis, valvular surgery, active phas

    Piezoelectret Sensors from Direct 3D-Printing onto Bulk Films

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    The development of piezoelectric sensors using ferroelectrets is a very active field that is increasingly gaining importance. Recently, 3D-printing ferroelectret sensors using fused deposition modeling technique has been extensively investigated due to its unparalleled advantages in terms of design flexibility and cost-effectiveness. Nevertheless, printed structures are more rigid than bulk materials due to the minimal printable thicknesses. In this work, we present a new method that combines the advantages of 3D-printing with the high performance of bulk materials by bonding both layers in the printing process. Hereby, a polylactic acid (PLA) filament is directly printed on a 20 μm-thick bulk PLA film to form well-defined structures. This structure is thermally bonded with another PLA bulk film to form the ferroelectret. In order to enhance the sensitivity of the ferroelectrets, an additional elastomeric layer is utilized. By varying the material and thickness of the elastomeric cover, piezoelectric d₃₃-coefficients of 713 pC N ⁻¹ and 229 pC N ⁻¹ are achieved using Ecoflex™ and foamed thermoplastic polyurethane (TPU), respectively. Increasing the thickness of the Ecoflex™ cover shows a significant increase of 259 % of the piezoelectric d₃₃-coefficient

    PRENOLIN project. Results of the validation phase at sendai site

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    One of the objectives of the PRENOLIN project is the assessment of uncertainties associated with non-linear simulation of 1D site effects. An international benchmark is underway to test several numerical codes, including various non-linear soil constitutive models, to compute the non-linear seismic site response. The preliminary verification phase (i.e. comparison between numerical codes on simple, idealistic cases) is now followed by the validation phase, which compares predictions of such numerical estimations with actual strong motion data recorded from well-known sites. The benchmark presently involves 21 teams and 21 different non-linear computations. Extensive site characterization was performed at three sites of the Japanese KiK-net and PARI networks. This paper focuses on SENDAI site. The first results indicate that a careful analysis of the data for the lab measurement is required. The linear site response is overestimated while the non-linear effects are underestimated in the first iteration. According to these observations, a first set of recommendations for defining the non-linear soil parameters from lab measurements is proposed. PRENOLIN is part of two larger projects: SINAPS@, funded by the ANR (French National Research Agency) and SIGMA, funded by a consortium of nuclear operators (EDF, CEA, AREVA, ENL)

    Antimicrobial resistance among migrants in Europe: a systematic review and meta-analysis

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    BACKGROUND: Rates of antimicrobial resistance (AMR) are rising globally and there is concern that increased migration is contributing to the burden of antibiotic resistance in Europe. However, the effect of migration on the burden of AMR in Europe has not yet been comprehensively examined. Therefore, we did a systematic review and meta-analysis to identify and synthesise data for AMR carriage or infection in migrants to Europe to examine differences in patterns of AMR across migrant groups and in different settings. METHODS: For this systematic review and meta-analysis, we searched MEDLINE, Embase, PubMed, and Scopus with no language restrictions from Jan 1, 2000, to Jan 18, 2017, for primary data from observational studies reporting antibacterial resistance in common bacterial pathogens among migrants to 21 European Union-15 and European Economic Area countries. To be eligible for inclusion, studies had to report data on carriage or infection with laboratory-confirmed antibiotic-resistant organisms in migrant populations. We extracted data from eligible studies and assessed quality using piloted, standardised forms. We did not examine drug resistance in tuberculosis and excluded articles solely reporting on this parameter. We also excluded articles in which migrant status was determined by ethnicity, country of birth of participants' parents, or was not defined, and articles in which data were not disaggregated by migrant status. Outcomes were carriage of or infection with antibiotic-resistant organisms. We used random-effects models to calculate the pooled prevalence of each outcome. The study protocol is registered with PROSPERO, number CRD42016043681. FINDINGS: We identified 2274 articles, of which 23 observational studies reporting on antibiotic resistance in 2319 migrants were included. The pooled prevalence of any AMR carriage or AMR infection in migrants was 25·4% (95% CI 19·1-31·8; I2 =98%), including meticillin-resistant Staphylococcus aureus (7·8%, 4·8-10·7; I2 =92%) and antibiotic-resistant Gram-negative bacteria (27·2%, 17·6-36·8; I2 =94%). The pooled prevalence of any AMR carriage or infection was higher in refugees and asylum seekers (33·0%, 18·3-47·6; I2 =98%) than in other migrant groups (6·6%, 1·8-11·3; I2 =92%). The pooled prevalence of antibiotic-resistant organisms was slightly higher in high-migrant community settings (33·1%, 11·1-55·1; I2 =96%) than in migrants in hospitals (24·3%, 16·1-32·6; I2 =98%). We did not find evidence of high rates of transmission of AMR from migrant to host populations. INTERPRETATION: Migrants are exposed to conditions favouring the emergence of drug resistance during transit and in host countries in Europe. Increased antibiotic resistance among refugees and asylum seekers and in high-migrant community settings (such as refugee camps and detention facilities) highlights the need for improved living conditions, access to health care, and initiatives to facilitate detection of and appropriate high-quality treatment for antibiotic-resistant infections during transit and in host countries. Protocols for the prevention and control of infection and for antibiotic surveillance need to be integrated in all aspects of health care, which should be accessible for all migrant groups, and should target determinants of AMR before, during, and after migration. FUNDING: UK National Institute for Health Research Imperial Biomedical Research Centre, Imperial College Healthcare Charity, the Wellcome Trust, and UK National Institute for Health Research Health Protection Research Unit in Healthcare-associated Infections and Antimictobial Resistance at Imperial College London

    Laparoscopy in management of appendicitis in high-, middle-, and low-income countries: a multicenter, prospective, cohort study.

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    BACKGROUND: Appendicitis is the most common abdominal surgical emergency worldwide. Differences between high- and low-income settings in the availability of laparoscopic appendectomy, alternative management choices, and outcomes are poorly described. The aim was to identify variation in surgical management and outcomes of appendicitis within low-, middle-, and high-Human Development Index (HDI) countries worldwide. METHODS: This is a multicenter, international prospective cohort study. Consecutive sampling of patients undergoing emergency appendectomy over 6 months was conducted. Follow-up lasted 30 days. RESULTS: 4546 patients from 52 countries underwent appendectomy (2499 high-, 1540 middle-, and 507 low-HDI groups). Surgical site infection (SSI) rates were higher in low-HDI (OR 2.57, 95% CI 1.33-4.99, p = 0.005) but not middle-HDI countries (OR 1.38, 95% CI 0.76-2.52, p = 0.291), compared with high-HDI countries after adjustment. A laparoscopic approach was common in high-HDI countries (1693/2499, 67.7%), but infrequent in low-HDI (41/507, 8.1%) and middle-HDI (132/1540, 8.6%) groups. After accounting for case-mix, laparoscopy was still associated with fewer overall complications (OR 0.55, 95% CI 0.42-0.71, p < 0.001) and SSIs (OR 0.22, 95% CI 0.14-0.33, p < 0.001). In propensity-score matched groups within low-/middle-HDI countries, laparoscopy was still associated with fewer overall complications (OR 0.23 95% CI 0.11-0.44) and SSI (OR 0.21 95% CI 0.09-0.45). CONCLUSION: A laparoscopic approach is associated with better outcomes and availability appears to differ by country HDI. Despite the profound clinical, operational, and financial barriers to its widespread introduction, laparoscopy could significantly improve outcomes for patients in low-resource environments. TRIAL REGISTRATION: NCT02179112
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