Dental and jawbone abnormalities linked to amelogenesis imperfecta: A retrospective and analytic study comparing panoramic radiographs.

BACKGROUND: Amelogenesis Imperfecta (AI) is a disorder of tooth development characterized by abnormal enamel formation. In order to detect other dental and jawbone abnormalities that could be associated with AI, a retrospective and analytic study was conducted comparing panoramic radiographs of AI and non-AI patients. MATERIAL AND METHODS: Digital panoramic radiographs of 60 AI and 60 non-AI patients were examined. Abnormalities in dental number, size, shape, eruption, and in the shape of the dental arches were checked and blindly recorded by two experimented observers. Descriptive statistics using percentages and chi-square test with .05 level of significance value was used. RESULTS: Prevalence of supernumerary teeth, dental agenesis, microdontia, taurodontism, radicular dilacerations, dental inclusions, temporary teeth persistence, and pulp calcifications was significantly higher in AI patients compared to control patients. Prevalence of periapical images, cysts, and hypercementosis was lower in AI patients compared to control patients, with no statistically significant difference. A significant prevalence of mandibular hypoplasia was also noted in AI patients. CONCLUSION: In addition to enamel defect, panoramic radiography was useful in detecting other dental abnormalities and mandibular hypoplasia associated with AI and should therefore be systematically indicated for AI patients' care.

SARS-CoV-2 Serology: Utility and Limits of Different Antigen-Based Tests through the Evaluation and the Comparison of Four Commercial Tests.

Introduction: SARS-CoV-2 serology have several indications. Currently, as there are various types available, it is important to master their performance in order to choose the best test for the indication. We evaluated and compared four different commercial serology tests, three of them had the Food and Drug Administration Emergency Use Authorization (FDA-EUA). Our goal was to provide new data to help guide the interpretation and the choice of the serological tests. Methods: Four commercial tests were studied: Elecsys® Roche® on Cobas® (total anti-nucleocapsid (N) antibodies), VIDAS® Biomerieux® (IgM and IgG anti- receptor binding domain (RBD) antibodies), Mindray® (IgM and IgG anti-N and anti-RBD antibodies) and Access® Beckman Coulter® (IgG anti-RBD antibodies). Two panels were tested: a positive panel (n = 72 sera) obtained from COVID-19-confirmed patients with no vaccination history and a negative panel (n = 119) of pre-pandemic sera. The analytical performances were evaluated and the ROC curve was drawn to assess the manufacturer's cut-off for each test. Results: A large range of variability between the tests was found. The Mindray®IgG and Cobas® tests showed the best overall sensitivity, which was equal to 79.2% CI 95% (67.9−87.8). The Cobas® test showed the best sensitivity after 14 days of COVID-19 molecular confirmation; which was equal to 85.4% CI 95% (72.2−93.9). The Access® test had a lower sensitivity, even after day 14 (55.5% CI 95% (43.4−67.3)). The best specificity was noted for the Cobas®, VIDAS®IgG and Access® IgG tests (100% CI 95% (96.9−100)). The IgM tests, VIDAS®IgM and Mindray®IgM, showed the lowest specificity and sensitivity rates. Overall, only 43 out of 72 sera (59.7%) showed concordant results by all tests. Retained cut-offs for a significantly better sensitivity and accuracy, without significant change in the specificity, were: 0.87 for Vidas®IgM (p = 0.01) and 0.14 for Access® (p < 10−4). The combination of Cobas® with Vidas® IgM and IgG offered the best accuracy in comparison with all other tests combinations. Conclusion: Although using an FDA-EUA approved serology test, each laboratory should carry out its own evaluation. Tests variability may raise some concerns that seroprevalence studies may vary significantly based on the used serology test.

Validity of Remission Criteria in Rheumatoid Arthritis Compared to Ultrasound-Defined Remission.

Objectives: Remission is the ultimate purpose of treatment in rheumatoid arthritis (RA). However, even when the most stringent composite scores are used, structural damages can occur; hence, ultrasonography (US) appears to be the best way to assess real remission. This study aimed to investigate the validity of different RA remission scores using US as a reference. Methods: An analytic diagnostic study, of 30 RA patients in remission (according to the Disease Activity Score in 28 Joints [DAS28]) and a control group with active RA, was conducted between January and October 2018 at Mongi Slim Hospital in Tunis, Tunisia. Among them, patients in remission were identified according to their Simple Disease Activity Index (SDAI), Clinical Disease Activity Index (CDAI) and the Boolean American College of Rheumatology/European League against Rheumatism activity index (ACR/EULAR) remission scores. The validity of each activity score for remission was calculated by considering the absence of power Doppler (PD) signals as a gold standard. Results: All patients were in remission according to the DAS28, with an average score of 2.03 (1.1-2.6). US examination showed PD signals in 57% of patients. A total of 26 patients were in remission according to the CDAI; a Doppler signal was detected in 58% of those cases. SDAI remission was accomplished in 19 patients, with PD activity in 53% of cases. Of the 14 patients in remission according to the Boolean ACR/EULAR criteria, synovial hyper-vascularisation was found in 64%. Considering true remission as the absence of PD signals, the most sensitive and specific score was the DAS28 (93% and 68%, respectively). Conclusion: Considering remission in RA as the absence of vascularised synovitis, the DAS28 is the most sensitive and most specific score.

Endothelial dysfunction and increased carotid intima-media thickness in patients with spondyloarthritis without traditional cardiovascular risk factors.

BACKGROUND: The aim of our study was to assess subclinical atherosclerosis in spondyloarthritis (SpA) by combining three ultrasound methods (flow-mediated dilation (FMD), carotid intima-media thickness (cIMT) and Ankle Brachial Index (ABI)) and to determine the predictive factors of theses parameters. METHODS: This was a case control study conducted over 12 months including 47 patients with SpA-free-cardiovascular (CV) disease in comparison with age and sex matched 47 healthy controls. Sociodemographic, clinical and biological features as well as therapeutic modalities were recorded in our patients. All subjects had Doppler ultrasound with measurement of cIMT, FMD and ABI. Ultrasound measurements were compared between patients and controls. Linear regression was performed and assessed by machine learning to determine the predictive models of markers of subclinical atherosclerosis. RESULTS: We found higher cIMT (p<0.0001), lower FMD (p=0.008) and higher left ABI (0.048) in patients with SpA compared with controls. cIMT was positively correlated to patient-related parameters (age, systolic blood pressure) and disease parameters (age at onset of SpA, disease duration and renal involvement). Biologically, cIMT was positively correlated with creatinine, blood-glocose, total cholesterol (CT) and CT/cholesterol-high density lipoprotein ratio. FMD was negatively correlated with male gender, age, systolic blood pressure, creatinine, blood glucose and Left Lequesne Index. ABI was significantly associated with diastolic blood pressure. Multiple regression analysis identified age, CT and creatinine as independents predictive factors for increased cIMT. Regarding endothelial dysfunction, blood glucose and Left Lequesne Index were the independents predictive factors of decreased FMD. CONCLUSION: Our study supported the accelerated subclinical atherosclerosis in patients with SpA. This subclinical atherosclerosis was mainly mediated by traditional CV risk factors.

Professor Mohamed Soussi Soltani: Leader, Innovator and Researcher in Public Health.

Mohamed Soussi SOLTANI (June 27, 1953 - March 2, 2016) is Professor of Preventive and Community Medicine at the Faculty of Medicine of Monastir (Tunisia). The objective of this paper is to present, to new generations of the specialty in the Greater Maghreb, this leading teacher from the Center-East of Tunisia (Monastir), through the testimonies of his companions, and his indexed publications. All the colleagues of the late SOLTANI testified to his high human and professional qualities, particularly perseverance, commitment, forward thinking, integrity and professionalism. The scientific life of the late Professor Soltani was oriented towards two major themes: Public Health and Family Medicine. Indeed, the deceased has developed several new preventive activities in first-line structures such as anonymous and free HIV screening, family planning, rational use of drugs, breast cancer screening, smoking cessation, prevention of rheumatic heart disease. Pr SOLTANI welcomed general practitioners from the Monastir region to the Faculty's Community Medicine Department, creating with them a movement to advocate for the academic and professional development of general medicine into an authentic specialty of family medicine. Out of the 34 publications of Professor SOLTANI, indexed on PubMed, 11 were signed by himself in first position, mainly relating to maternal health (prenatal surveillance, education for maternal health, pregnancy referral system) and infant (low birth weight, vaccination, mother-to-child transmission of hepatitis B, meningitis due to Haemophilus influenzae). Thus, with a life prospering by innovations and research in public health, Professor SOLTANI will always remain a model for young people in the specialty of Preventive and Community Medicine. His followers have an obligation to write his complete biography, to safeguard it and pass it on to new generations of public health.

Family Medicine (General Medicine): What academic and professional specificities?

Family Medicine, a true scientific and academic discipline, has been defined by the World Organization of National Colleges, Academies and academic associations of general practitioners / family physicians (WONCA) since 2002, as being a "clinical specialty oriented towards primary care". This paper details the specificities of Family Medicine: a horizontal specialty, primary care, providing comprehensive and continuous care, patient-centered and community-oriented. The promotion of Family Medicine in the Maghreb countries requires a multi-axial strategy based on the social marketing of Family Medicine, the recognition of Family Medicine as a medical specialty and of Family Medicine as a gateway to national health system, the establishment of a quality approach in basic health centers and free practice offices (centers of health centers) and regular validation of the Family Medicine diploma.

Maghreb doctors need capacity building in epidemic investigation and control.

OBJECTIVE: Describe the training needs of young Maghreb doctors in epidemic management. METHODS: This is a study to quantify the need for medical training on "epidemic management". The study population was formed by residents and assistant professors of the French-speaking faculties of medicine in the Greater Maghreb, hospital-university professors, who were invited to respond to an online questionnaire. The "need" for learning a skill was defined by the perception of its importance, of its low coverage by the curricula and its poor mastery. A grid with 20 items, coded according to the Likert scale of 1 to 5 points, was specially developed for the measurement of need, retained beyond the thresholds of 45/90 points for the two dimensions "confirmation" and "investigation", 60/120 points for the "control" dimension, and 150/300 for the total sum. RESULTS: A total of 121 young Maghreb doctors answered the questionnaire to assess the needs for learning epidemic management skills. The median overall scores for the chapters "importance", "coverage" and "performance" were 76, 40 and 48 respectively out of 100 points. The median scores for training "needs" were 54/90, 48/90 and 67/120 points, respectively, for the dimensions "confirmation", "investment" and "control", giving a global median score of 168 / 300. CONCLUSION: Capacity building in epidemic management is a need felt by young Maghreb doctors, partially covered by current medical school programs, and consequently altering their professional performance.

Evaluation of the Primary Health Care policy in the Maghreb. Feedback from Expert-Leaders in Tunisia.

INTRODUCTION: The Basic Health Care Policy (BHC), the Maghrebian version of WHO's Primary Health Care, is celebrating forty years in Tunisia. The aim of this paper was to contribute to the evaluation of BHCs in Tunisia, by listening to the testimonies of experts / leaders who have led their journey during these four decades. METHODS: The experts / leaders included in this testimony were invited via email and throu gh the use of the Delphi technique to report the acquired lessons and the errors. The collected qualitative data was analyzed through a process of categorization which classified them into: assets (strengths and opportunities) and handicaps (weaknesses and threats). RESULTS: Four experts / leaders took part in this call for testimonies, including two consultants to international organizations, a trade union doctor and a professor of Preventive Medicine. The main assets of the BHC in Tunisia, according to the participants, were: 1. The medical leadership initiated from the student phase;  2. The political commitment of public authorities ; 3. The academic support from the medical faculties and their Preventive Medicine departments ; 4. The institutionalization of the organizational framework of the Health Unit ; 5. The Academic training of professionals in integrated medicine. As for the handicaps of BHC in Tunisia, the experts / leaders particularly mentioned: 1. The weakness of community participation ; 2. The international attractiveness of accompanying national doctors; 3. The pressures of academic career imperatives ; 4. The lack of a National School of Public Health; 5. The context of privatization and hospital-centrism. CONCLUSION: This feedback from the experts / leaders concerning BHC policies in Tunisia highlighted the perception of its performance "in tune" with WHO and "three years before Alma Ata". The new generation of BHC leaders have an obligation to safeguard their principles and adapt their practices to population expectations and new managerial approaches.

Towards new perspectives Support for Prevention to the National Health System in Tunisia.

"Prevention", a component of primary health care since Alma Ata's declaration (1978), has been a strategic axis of health policy in Tunisia for four decades. If the Tunisian Revolutionary Constitution (2014) declared in its Article 38 that "the State guarantees prevention", the regulatory texts, organizing preventive structures and its operational programs, have today become ill-suited with the global burden of disease and current scientific evidence. The analysis of current preventive practices in Tunisia, based on the "health continuum", the taxonomy of "preventive strategies" and the identification of "vulnerable populations", has shown the need to implement prevention activities. "Primordial" and "quaternary" (for the management of cardiovascular diseases and cancers), extension of the fields of health education and epidemiological surveillance, towards Therapeutic Education of Patients / Health Promotion, and health monitoring, and coverage of new groups at risk: adolescents and the elderly. Faced with the multitude of prevention structures and the fragmentation of health programs, the reform of the national preventive policy and its practices should be based on the principles of integration, relevance and efficiency, through the establishment of a National Health Protection Agency (NHPA). This ANP is called upon to launch new prevention support projects including integrated preventive medicine centers (providing periodic health examinations), hospital patient therapeutic education services and home care units. Such a reform, announcing the birth of a new generation of preventive basic health care activities in Tunisia, should be reinforced by a legal, organizational and educational basis.

Epidemiological and anatomopathological profile of breast cancer in the region of North-West of Tunisia.

INTRODUCTION: Breast cancer is a common and serious disease. It represents the first cause of mortality and morbidity from cancer of Tunisian women and worldwide. AIM: To analyze the clinico-pathological and evolutionary characteristics of the patients followed at the carcinology's pole in the region of the North-West of Tunisia. METHODS: We conducted a retrospective descriptive study of 114 patients, who were diagnosed with non metastatic breast cancers over a 6-year period, from January 2011 to December 2016. RESULTS: Among the 289 patients treated in the medical carcinology department of the Jendouba regional hospital for invasive breast carcinoma over a period of 6 years, 114 patients had localized breast carcinoma, they were the subject of our study. The average age was 51 years. Nonspecific invasive cancer was the most frequent histological type (95.6%). The mean histological size was 29.3 mm. SBR grade II was most prevalent. Histological lymph node involvement was observed in 50.9%. Lymphovascular invasion was detected in 23.9% of cases and perineural sheaths was detected in 21.9% of cases. The most common molecular subtype was Luminal B. After discussion in a multidisciplinary concertation meeting, the patients received locoregional treatment: surgery, radiotherapy and systemic treatment: chemotherapy, endocrine hormone therapy. After a median follow-up of 45 months, OS and PFS at 5 years were 85.6% and 79.2% respectively. CONCLUSION: In the region of the North-West of Tunisia, breast cancer is characterized by its occurrence at a young age, the importance of tumor size, the importance of lymph node involvement, the frequency of inflammatory breast carcinoma and especially by the predominance of the molecular groups Luminal B and HER2 neu.

Long term inhibition of hip joint damage under tumor necrosis factor-alpha inhibitors in spondyloarthritis.

The aim of this study was to assess the impact of long-term treatment with TNF blockers on the radiographic progression of hip disease in spondyloarthritis (SpA). This retrospective multicentric cohort study included 2 groups of patients with SpA and hip involvement. Patients of group 1 were treated with anti-TNF alpha for at least 2 years, whereas those of group 2 were anti-TNF-naïve patients. Clinical, laboratory and radiologic parameters were assessed at baseline and after at least 2 years. Groups 1 and 2 included respectively 48 and 46 patients. The radiological features of hip disease were comparable between the two groups at baseline. The second evaluation was performed after an average duration of 4.1 ± 2.9 years [2-10] in group 1 and 4.8 ± 2.1 years [2-14] in group 2 (p = 0.116). The absence of hip structural damage was more frequently found in group 1 (72 hips vs 52, p < 0.0001, odds ratio [OR] = 4.7, 95% confidence interval [CI] = 2.1-10.4). The better outcome in group 1 remained significant even after adjusting for BASDAI (p < 0.05, (adjusted odds ratio [aOR] = 3.3, 95% CI = 1.2-9.2), BASFI (p < 0.0001, aOR = 3.1, 95% CI = 1.1-8.9), and CRP (p < 0.01, aOR = 4.2, 95% CI = 1.8-9.8). Our finding suggests that anti-TNF therapy may inhibit hip joint damage in patients with SpA.