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1.
Am J Trop Med Hyg ; 110(1): 170-178, 2024 01 03.
Artigo em Inglês | MEDLINE | ID: mdl-38109766

RESUMO

In Burkina Faso, the health system is characterized by systemic insufficient and antiquated health-care infrastructures. Consequently, few health-care establishments have the required resources to diagnose and manage patients with COVID-19, and fewer still have intensive care facilities for severely ill patients with COVID. Furthermore, there is a widespread scarcity of qualified health-care staff. The aim of this study was to explore the experiences of patients with COVID-19 who recovered after being cared for in Bobo Dioulasso and Ouagadougou. Using individual semistructured interviews, we performed a cross-sectional qualitative, descriptive study from June 12 to 30, 2020 with the aid of 13 well-educated patients who had survived COVID-19. The results reveal that prior to hospital admission, the main reason that prompted patients to seek care was onset of symptoms of COVID-19, regardless of whether they had been in contact with suspected or confirmed cases. Transmission was mainly believed to have occurred in the community, in the hospital, and during travel. Patient management was punctuated by frequent self-medication with medicinal plants or pharmaceutical drugs. The participants reported a negative perception of hospitalization or home-based management, with several forms of stigmatization, but a positive perception influenced by the satisfactory quality of management in health-care centers. This report of patient experiences could be helpful in improving the management of COVID-19 in Burkina Faso, both in the health-care setting and in home-based care.


Assuntos
COVID-19 , Humanos , Burkina Faso/epidemiologia , Estudos Transversais , Pesquisa Qualitativa , Pacientes
2.
Influenza Other Respir Viruses ; 17(11): e13216, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38019697

RESUMO

BACKGROUND: This study aimed to estimate the anti-SARS-CoV-2 antibody seroprevalence in the general population of Bobo-Dioulasso and Ouagadougou (Burkina Faso). METHODS: We collected from March to April 2021 blood samples from randomly selected residents in both main cities based on the World Health Organization (WHO) sero-epidemiological investigations protocols and tested them with WANTAI SARS-CoV-2 total antibodies enzyme-linked immunosorbent assay (ELISA) kits intended for qualitative assessment. We also recorded participants' socio-demographic and clinical characteristics and information on exposure to SARS-CoV-2. Data were analysed with descriptive and comparative statistics. RESULTS: We tested 5240 blood samples collected between 03 March and 16 April 2021. The overall test-adjusted seroprevalence for SARS-CoV-2 antibodies was (67.8% [95% CI 65.9-70.2]) (N = 3553/3982). Seroprevalence was highest among participants aged 15-18 years old (74.2% [95% CI 70.5-77.5]) (N = 465/627), compared with those aged 10-14 years old (62.6% [95% CI 58.7-66.4]) (N = 395/631), or those over 18 (67.6% [95% CI 66.2-69.1]) (N = 2693/3982). Approximately 71.0% (601/860) of participants aged 10-18 years old who tested positive for SARS-CoV-2 antibodies experienced no clinical COVID-19 symptoms in the weeks before the survey, compared with 39.3% (1059/2693) among those aged over 18 years old. CONCLUSION: This study reports the results of the first known large serological survey in the general population of Burkina Faso. It shows high circulation of SARS-CoV-2 in the two cities and a high proportion of asymptomatic adolescents. Further studies are needed to identify the SARS-CoV-2 variants and to elucidate the factors protecting some infected individuals from developing clinical COVID-19.


Assuntos
COVID-19 , SARS-CoV-2 , Adolescente , Humanos , Adulto , Pessoa de Meia-Idade , Criança , COVID-19/epidemiologia , Estudos Soroepidemiológicos , Burkina Faso/epidemiologia , Inquéritos e Questionários , Anticorpos Antivirais
3.
Nat Commun ; 14(1): 6249, 2023 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-37803018

RESUMO

The reaction-diffusion principle imagined by Alan Turing in an attempt to explain the structuring of living organisms is leveraged in this work for the procedural synthesis of radiating metasurfaces. The adaptation of this morphogenesis technique ensures the growth of anisotropic cellular patterns automatically arranged to satisfy local electromagnetic constraints, facilitating the radiation of waves controlled in frequency, space, and polarization. Experimental validations of this method are presented, designing morphogenetic metasurfaces radiating far-field circularly polarized beams and generating a polarization-multiplexed hologram in the radiative near-field zone. The exploitation of morphogenesis-inspired models proves particularly well suited for solving generative design problems, converting global physical constraints into local interactions of simulated chemical reactants ensuring the emergence of self-organizing meta-atoms.

4.
BMC Infect Dis ; 23(1): 394, 2023 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-37308819

RESUMO

BACKGROUND: Early data on COVID-19 (based primarily on PCR testing) indicated a low burden in Sub-Saharan Africa. To better understand this, this study aimed to estimate the incidence rate and identify predictors of SARS-CoV-2 seroconversion in the two largest cities of Burkina Faso. This study is part of the EmulCOVID-19 project (ANRS-COV13). METHODS: Our study utilized the WHO Unity protocol for cohort sero-epidemiological studies of COVID-19 in general population. We conducted random sampling stratified by age group and sex. Individuals aged 10 years and older in the cities of Ouagadougou and Bobo-Dioulasso, Burkina Faso were included and surveyed at 4 time points, each 21 days apart, from March 3 to May 15, 2021. WANTAI SARS-CoV-2 Ab ELISA serological tests were used to detect total antibodies (IgM, IgG) in serum. Predictors were investigated using Cox proportional hazards regression. RESULTS: We analyzed the data from 1399 participants (1051 in Ouagadougou, 348 in Bobo-Dioulasso) who were SARS-CoV-2 seronegative at baseline and had at least one follow-up visit. The incidence rate of SARS-CoV-2 seroconversion was 14.3 cases [95%CI 13.3-15.4] per 100 person-weeks. The incidence rate was almost three times higher in Ouagadougou than in Bobo-Dioulasso (Incidence rate ratio: IRR = 2.7 [2.2-3.2], p < 0.001). The highest incidence rate was reported among women aged 19-59 years in Ouagadougou (22.8 cases [19.6-26.4] per 100 person-weeks) and the lowest among participants aged 60 years and over in Bobo-Dioulasso, 6.3 cases [4.6-8.6] per 100 person-weeks. Multivariable analysis showed that participants aged 19 years and older were almost twice as likely to seroconvert during the study period compared with those aged 10 to 18 years (Hazard ratio: HR = 1.7 [1.3-2.3], p < 0.001). Those aged 10-18 years exhibited more asymptomatic forms than those aged 19 years and older, among those who achieved seroconversion (72.9% vs. 40.4%, p < 0.001). CONCLUSION: The spread of COVID-19 is more rapid in adults and in large cities. Strategies to control this pandemic in Burkina Faso, must take this into account. Adults living in large cities should be the priority targets for vaccination efforts against COVID-19.


Assuntos
COVID-19 , Adulto , Humanos , Feminino , Pessoa de Meia-Idade , Idoso , SARS-CoV-2 , Burkina Faso , Cidades , Incidência , Estudos Prospectivos
5.
Plast Reconstr Surg ; 152(3): 612-622, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-36847681

RESUMO

BACKGROUND: Crouzon syndrome is characterized by complex craniosynostosis and midfacial hypoplasia. Where frontofacial monobloc advancement (FFMBA) is indicated, the method of distraction used to achieve advancement holds an element of equipoise. This two-center retrospective cohort study quantifies the movements produced by internal or external distraction methods used for FFMBA. Using shape analysis, this study evaluates whether the different distraction forces cause plastic deformity of the frontofacial segment, producing distinct morphologic outcomes. METHODS: Patients with Crouzon syndrome who underwent FFMBA with internal distraction [Hôpital Necker-Enfants Malades (Paris, France)] or external distraction [Great Ormond Street Hospital for Children (London, United Kingdom)] were compared. Digital Imaging and Communications in Medicine files of preoperative and postoperative computed tomographic scans were converted to three-dimensional bone meshes and skeletal movements were assessed using nonrigid iterative closest point registration. Displacements were visualized using color maps and statistical analysis of the vectors was undertaken. RESULTS: Fifty-one patients met the strict inclusion criteria. Twenty-five underwent FFMBA with external distraction and 26 with internal distraction. External distraction provides a preferential midfacial advancement, whereas internal distractors produce a more positive movement at the lateral orbital rim. This confers good orbital protection but does not advance the central midface to the same extent. Vector analysis confirmed this to be statistically significant ( P < 0.01). CONCLUSIONS: Morphologic changes resulting from monobloc surgery differ depending on the distraction technique used. Although the relative merits of internal and external distraction still stand, it may be that external distraction is more suited to addressing the midfacial biconcavity seen in syndromic craniosynostosis. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.


Assuntos
Acrocefalossindactilia , Disostose Craniofacial , Craniossinostoses , Osteogênese por Distração , Criança , Humanos , Estudos Retrospectivos , Osteogênese por Distração/métodos , Ossos Faciais/diagnóstico por imagem , Ossos Faciais/cirurgia , Disostose Craniofacial/diagnóstico por imagem , Disostose Craniofacial/cirurgia , Craniossinostoses/diagnóstico por imagem , Craniossinostoses/cirurgia , Acrocefalossindactilia/diagnóstico por imagem , Acrocefalossindactilia/cirurgia
6.
Pediatr Pulmonol ; 57(12): 2954-2962, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35962649

RESUMO

OBJECTIVES: Children with Chiari malformation type I (CM-I) have an increased risk of sleep apnea. The aim of the study was to describe the management of CM-I patients in relation to symptoms, magnetic resonance imaging (MRI) findings and sleep apnea syndrome (SAS). METHODS: We performed a retrospective analysis of clinical charts of all 57 CM-I patients seen between September 2013 and April 2017. RESULTS: A total of 45 patients had isolated CM-I or associated co-morbidity (CM-Iia), 5 had craniosynostosis (CM-Ics), and 7 a polymalformative syndrome (CM-Ipm). The prevalence of SAS, defined as an apnea-hypopnea index >1 event/h, was high in CM-I ranging from 50% to 80% according to the CM-I group. The prevalence of central sleep apnea (CSA) was low, with 5 (9%) patients having CSA and only 3 patients with CM-Iia having isolated CSA. A total of 17 patients (30%) had foramen magnum decompression (FMD). Neither positive symptoms of CM-I nor MRI findings alone, nor both combined were good indicators for FMD. No correlation was observed between the cerebellar tonsil descent and SAS in CM-I. But all 5 patients with CSA had a FMD. The combination of MRI findings and/or symptoms of CM-I together with moderate-to-severe SAS best discriminated patients who needed a FMD. CONCLUSION: Our findings highlight the importance of a combined evaluation of symptoms, MRI and polygraphy results in the management of CM-I patients.


Assuntos
Malformação de Arnold-Chiari , Síndromes da Apneia do Sono , Apneia do Sono Tipo Central , Criança , Humanos , Malformação de Arnold-Chiari/complicações , Malformação de Arnold-Chiari/diagnóstico por imagem , Malformação de Arnold-Chiari/epidemiologia , Polissonografia/efeitos adversos , Estudos Retrospectivos , Síndromes da Apneia do Sono/complicações , Síndromes da Apneia do Sono/epidemiologia , Síndromes da Apneia do Sono/terapia , Apneia do Sono Tipo Central/epidemiologia , Apneia do Sono Tipo Central/terapia , Apneia do Sono Tipo Central/complicações , Imageamento por Ressonância Magnética/métodos
7.
Front Bioeng Biotechnol ; 10: 913190, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35685092

RESUMO

The neonate skull consists of several bony plates, connected by fibrous soft tissue called sutures. Premature fusion of sutures is a medical condition known as craniosynostosis. Sagittal synostosis, caused by premature fusion of the sagittal suture, is the most common form of this condition. The optimum management of this condition is an ongoing debate in the craniofacial community while aspects of the biomechanics and mechanobiology are not well understood. Here, we describe a computational framework that enables us to predict and compare the calvarial growth following different reconstruction techniques for the management of sagittal synostosis. Our results demonstrate how different reconstruction techniques interact with the increasing intracranial volume. The framework proposed here can be used to inform optimum management of different forms of craniosynostosis, minimising the risk of functional consequences and secondary surgery.

8.
J Plast Reconstr Aesthet Surg ; 75(8): 2706-2718, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35431130

RESUMO

BACKGROUND: This study aims to assess the improvement of sleep apnea after secondary Le Fort III facial advancement with distraction (LF3) in faciocraniosynostosis (FCS) patients with sleep apnea who have previously undergone fronto-facial monobloc advancement (FFMBA) with distraction. METHODS: Patients having undergone secondary LF3 were selected from a cohort of FCS patients with documented sleep apnea who had previously undergone fronto-facial monobloc advancement. Patient charts and polysomnographic records were reviewed. Apnea-hypopnea index (AHI) was recorded before and at least 6 months after secondary LF3. The primary outcome was normalization of AHI (less than 5/h was considered normal). Hierarchical multilevel analysis was performed to predict postoperative AHI evolution. RESULTS: Seventeen patients underwent a secondary LF3, 7.0 ± 3.9 years after the primary FFMBA. The mean age was 9.6 ± 3.9 years. A total of 15 patients (88%) normalized their AHI. Two of four patients were decannulated (50%). There was a statistically significant decrease in AHI (preoperative AHI 21.5/h vs. 3.9/h postoperatively, p=0.003). Hierarchic multilevel modeling showed progressive AHI decrease postoperatively. CONCLUSION: Secondary LF3 improves residual or relapsing sleep apnea in FCS patients who have previously had FFMBA.


Assuntos
Disostose Craniofacial , Osteogênese por Distração , Síndromes da Apneia do Sono , Apneia Obstrutiva do Sono , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Disostose Craniofacial/cirurgia , Humanos , Recidiva Local de Neoplasia , Osteotomia de Le Fort , Apneia Obstrutiva do Sono/cirurgia
9.
Bone Rep ; 16: 101524, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35372644

RESUMO

Objective: Faciocraniosynostoses (FCS) are malformations affecting the development of the bones of the skull and face, due to the premature closure of one or more craniofacial sutures, mostly secondary to activating Fibroblast Growth Factor Receptor (FGFR) 1-3 mutations. Gain-of-function FGFR3 mutations are also responsible for various conditions referred to as osteochondrodysplasia (OCD), characterized by structural and functional abnormalities of growth plate cartilages. We hypothesized that patients with FGFR-related faciocraniosynostoses may present extra-cranial growth anomalies. Study design: We retrospectively collected height and weight data from a cohort of 70 patients. Included patients were admitted for FGFR-related FCS between 2000 and 2021 at the Craniofacial Unit of Necker - Enfants Malades University Hospital in Paris, France. Results: We showed that FGFR-related faciocraniosynostoses had significantly reduced heights and weights relative to controls, and that two specific time periods (1-3 years and > 8 years of age) were associated with lower height and weight values. Four patients had received growth hormone treatment but remained below normal values for growth in height and weight. Conclusions: Patients with FGFR-related faciocraniosynostoses have clinically significant extra-cranial anomalies which are not currently investigated and managed in usual protocols; these patients could benefit from a systematic pre-pubertal endocrine assessment. More generally, our results extend the scope of extracranial anomalies in FGFR-related faciocraniosynostoses and support the hypothesis that all conditions with activating FGFR mutations affect both membranous ossification and long bones.

10.
Br J Oral Maxillofac Surg ; 60(4): 499-506, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35314080

RESUMO

The aim of this study was to carry out a retrospective multicentre study comparing the morphological outcome of 8 techniques used for the management of sagittal synostosis versus a large cohort of control patients. Computed tomographic (CT) images were obtained from children CT-scanned for non-craniosynostosis related events (n = 241) and SS patients at preoperative and postoperative follow-up stages (n = 101). No significant difference in morphological outcomes was observed between the techniques considered in this study. However, the majority of techniques showed a tendency for relapse. Further, the more invasive procedures at older ages seem to lead to larger intracranial volume compared to less invasive techniques at younger ages. This study can be a first step towards future multicentre studies, comparing surgical results and offering a possibility for objective benchmarking of outcomes between methods and centres.


Assuntos
Craniossinostoses , Anormalidades Maxilomandibulares , Procedimentos de Cirurgia Plástica , Criança , Craniossinostoses/diagnóstico por imagem , Craniossinostoses/cirurgia , Craniotomia/métodos , Humanos , Lactente , Anormalidades Maxilomandibulares/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Estudos Retrospectivos , Crânio/cirurgia , Tomografia Computadorizada por Raios X
11.
Int J Infect Dis ; 118: 224-229, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35227869

RESUMO

OBJECTIVES: Our study aimed to assess the statistical relationship between the use of chloroquine phosphate or hydroxychloroquine plus azithromycin (CQ/HCQ + AZ) and virological recovery, disease worsening, and death among out- and inpatients with COVID-19 in Burkina Faso. METHODS AND DESIGNS: This was a retrospective observational study that compared outcomes in terms of time to recovery, worsening, and death in patients who received CQ/HCQ + AZ and those who did not using a multivariable Cox or Poisson model before and after propensity matching. RESULTS: Of the 863 patients included in the study, about 50% (432/863) were home-based follow-up patients and 50% were inpatients. Of these, 83.3% (746/863) received at least 1 dose of CQ/HCQ + AZ and 13.7% (118/863) did not. There were no significant differences in associated time to recovery for patients receiving any CQ/HCQ + AZ (adjusted HR 1.44; 95% CI 0.76-2.71). Similarly, there was no significant association between CQ/HCQ + AZ use and worsening (adjusted IRR 0.80; 95% CI 0.50-1.50). However, compared with the untreated group, the treated group had a lower risk of death (adjusted HR 0.20; 95% CI 0.10-0.44). CONCLUSIONS: The study provided valuable additional information on the use of CQ/HCQ in patients with COVID-19 and did not show any harmful outcomes of CQ/HCQ + AZ treatment.


Assuntos
Tratamento Farmacológico da COVID-19 , Hidroxicloroquina , Antivirais/uso terapêutico , Azitromicina/efeitos adversos , Burkina Faso/epidemiologia , Cloroquina/efeitos adversos , Humanos , Hidroxicloroquina/uso terapêutico , Pacientes Internados , Pacientes Ambulatoriais , SARS-CoV-2
12.
J Exp Med ; 219(4)2022 04 04.
Artigo em Inglês | MEDLINE | ID: mdl-35254402

RESUMO

Crouzon syndrome with acanthosis nigricans (CAN, a rare type of craniosynostosis characterized by premature suture fusion and neurological impairments) has been linked to a gain-of-function mutation (p.Ala391Glu) in fibroblast growth factor receptor 3 (FGFR3). To characterize the CAN mutation's impact on the skull and on brain functions, we developed the first mouse model (Fgfr3A385E/+) of this syndrome. Surprisingly, Fgfr3A385E/+ mice did not exhibit craniosynostosis but did show severe memory impairments, a structurally abnormal hippocampus, low activity-dependent synaptic plasticity, and overactivation of MAPK/ERK and Akt signaling pathways in the hippocampus. Systemic or brain-specific pharmacological inhibition of FGFR3 overactivation by BGJ398 injections rescued the memory impairments observed in Fgfr3A385E/+ mice. The present study is the first to have demonstrated cognitive impairments associated with brain FGFR3 overactivation, independently of skull abnormalities. Our results provide a better understanding of FGFR3's functional role and the impact of its gain-of-function mutation on brain functions. The modulation of FGFR3 signaling might be of value for treating the neurological disorders associated with craniosynostosis.


Assuntos
Acantose Nigricans , Disostose Craniofacial , Craniossinostoses , Acantose Nigricans/complicações , Acantose Nigricans/genética , Animais , Encéfalo , Disostose Craniofacial/complicações , Disostose Craniofacial/genética , Craniossinostoses/genética , Modelos Animais de Doenças , Transtornos da Memória/genética , Camundongos , Receptor Tipo 3 de Fator de Crescimento de Fibroblastos/genética
13.
Eur J Ophthalmol ; 32(6): 3274-3280, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35118895

RESUMO

INTRODUCTION: Among non-syndromic, single-suture craniosynostoses, unicoronal craniosynostosis (UCS) presents the highest rate of ophthalmic manifestations requiring a visual follow-up, due to the high risk of amblyopia. After birth or during childhood, children with UCS have a high risk to present an aniso-astigmatism and a strabismus. The aim of this study was to characterize clinical ophthalmologic findings associated with UCS in a paediatric cohort. METHODS: This retrospective study included children admitted in our unit between 2015 and 2021, with isolated UCS treated in our institution and complete ophthalmological assessment comprising visual assessment, refractive status and oculomotor examination. Children with associated craniofacial disorders were excluded. RESULTS: A total of 28 children met the inclusion criteria. Median age was 62 [13-192] months with a large proportion of girls (86%) and 71% of right-sided UCS. The mean best corrected visual acuity was 0.07 (±0.13) LogMAR, including 10 (36%) children with an amblyopia or history of amblyopia. Astigmatism was significantly higher on the contralateral side of the UCS than on the ipsilateral side, with a refractive cylinder error of 0.97 (±1.06) vs 0.56 (±0.68) diopters, respectively (p = 0.03). Strabismus was observed in 20 patients (71%) with a main pattern of esotropia with a vertical component. A pseudo-superior oblique palsy was found in 13 children (65%) with a median cyclodeviation of 8.7° [-5,4°-20.6°]. CONCLUSION: Children with UCS experience a high rate of various visual manifestations. This study highlights their need for a strict ophthalmological follow-up, in order to early diagnose and prevent visual complications.


Assuntos
Ambliopia , Astigmatismo , Craniossinostoses , Erros de Refração , Estrabismo , Ambliopia/complicações , Ambliopia/etiologia , Astigmatismo/complicações , Astigmatismo/etiologia , Criança , Craniossinostoses/complicações , Craniossinostoses/diagnóstico , Craniossinostoses/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Erros de Refração/diagnóstico , Erros de Refração/etiologia , Estudos Retrospectivos , Estrabismo/diagnóstico , Estrabismo/etiologia
14.
Br J Neurosurg ; : 1-3, 2021 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-34747686

RESUMO

BACKGROUND: Children with Chiari Malformation type II (CM-II) have an increased risk of sleep apnoea. The aim of the study was to describe the management of patients with CM-II in relation to sleep apnoea syndrome, clinical symptoms and magnetic resonance imaging (MRI) findings. CASE SERIES PRESENTATION: The paper reports 8 consecutive patients with CM-II followed between September 2013 and April 2017. The prevalence of sleep apnoea syndrome was high with 6 out of 8 patients having mild-to-severe sleep apnoea. Patients with severe sleep apnoea syndrome (3 patients) were treated with upper airway surgery and/or noninvasive ventilation. CONCLUSION: Our findings highlight the importance of respiratory polygraphy in the management of patients with CM-ΙΙ. Poly(somno)graphy is recommended in the follow-up care of children with CM-II.

15.
Ther Clin Risk Manag ; 17: 1187-1198, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34815671

RESUMO

INTRODUCTION: Though chloroquine derivatives are used in the treatment of coronavirus disease 2019 (COVID-19) in many countries worldwide, doubts remain about the safety and efficacy of these drugs, especially in African communities where published data are scarce. METHODS: We conducted an observational prospective cohort study from April 24 to September 03, 2020, in Burkina Faso to assess (as primary outcome) the clinical, biological, and cardiac (electrocardiographic) safety of chloroquine or hydroxychloroquine plus azithromycin administered to COVID-19 patients. The main secondary outcomes were all-cause mortality and median time of viral clearance. RESULTS: A total of 153 patients were enrolled and followed for 21 days. Among patients who took at least one dose of chloroquine or hydroxychloroquine (90.1% [138/153]), few clinical adverse events were reported and were mainly rash/pruritus, diarrhea, chest pain, and palpitations. No statistically significant increase in hepatic, renal, and hematological parameters or electrolyte disorders were reported. However, there was a significant increase in the QTc value without exceeding 500ms, especially in those who received chloroquine phosphate. Three adverse events of special interest classified as serious (known from chloroquine derivatives) were recorded namely pruritus, paresthesia, and drowsiness. One case of death occurred. The average onset of SARS-CoV-2 PCR negativity was estimated at 7.0 (95% CI: 5.0-10.0) days. CONCLUSION: Hydroxychloroquine appeared to be well tolerated in treated COVID-19 patients in Burkina Faso. In the absence of a robust methodological approach that could generate a high level of scientific evidence, our results could at least contribute to guide health decisions that should be made based on different sources of scientific evidence including those from our study.

16.
BMC Infect Dis ; 21(1): 896, 2021 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-34479501

RESUMO

BACKGROUND: The world has high hopes of vaccination against COVID-19 to protect the population, boost economies and return to normal life. Vaccination programmes are being rolled out in high income countries, but the pandemic continues to progress in many low-and middle-income countries (LMICs) despite implementation of strict hygiene measures. We aim to present a comprehensive research protocol that will generate epidemiological, sociological and anthropological data about the COVID-19 epidemic in Burkina Faso, a landlocked country in West Africa with scarce resources. METHODS: We will perform a multidisciplinary research using mixed methods in the two main cities in Burkina Faso (Ouagadougou and Bobo-Dioulasso). Data will be collected in the general population and in COVID-19 patients, caregivers and health care professionals in reference care centers: (i) to determine cumulative incidence of SARS-CoV-2 infection in the Burkinabe population using blood samples collected from randomly selected households according to the WHO-recommended protocol; (ii) develop a score to predict severe complications of COVID-19 in persons infected with SARS-CoV-2 using retrospective and prospective data; (iii) perform semi-structured interviews and direct observation on site, to describe and analyze the healthcare pathways and experiences of patients with COVID-19 attending reference care centers, and to identify the perceptions, acceptability and application of preventive strategies among the population. DISCUSSION: This study will generate comprehensive data that will contribute to improving COVID-19 response strategies in Burkina Faso. The lessons learned from the management of this epidemic may serve as examples to the country authorities to better design preventive strategies in the case of future epidemics or pandemics. The protocol was approved by the Ministry for Health (N° 2020-00952/MS/CAB/INSP/CM) and the Health Research Ethics Committee in Burkina Faso (N° 2020-8-140).


Assuntos
COVID-19 , Burkina Faso/epidemiologia , Humanos , Estudos Prospectivos , Estudos Retrospectivos , SARS-CoV-2
17.
Arch Oral Biol ; 131: 105253, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34500259

RESUMO

OBJECTIVE: This retrospective radiographic controlled study investigates the dental phenotype in patients with Crouzon syndrome to determine if differences are observed as suggested by the FGFR2C342Y/+ Crouzon mouse models, and whether these models could be of interest to study the role of this mutation in tooth development. DESIGN: We assessed dental phenotype using dedicated linear measurements in 22 children with Crouzon syndrome and compared tooth morphology in both primary and permanent dentitions to an age-matched control group. Descriptive statistics were performed with "Sex" and "Age" as covariates for the permanent tooth models and "Sex" only for the primary tooth models, to take into account potential confounding factors. RESULTS: We showed that permanent but not primary tooth dimensions were globally reduced in Crouzon syndrome, without microdontia. In permanent dentition, crown height, mesiodistal and faciolingual cervical diameters were reduced by 6.3%, 5.7% and 5.5% respectively (p < 0.05). CONCLUSION: Our results underline the implication of Fibroblast Growth Factor Receptor 2 (FGFR2) in dental development of humans and contribute to support FGFR2C342Y/+ Crouzon mouse models as partial replicas of this condition, including in the oral region.


Assuntos
Disostose Craniofacial , Animais , Disostose Craniofacial/diagnóstico por imagem , Disostose Craniofacial/genética , Modelos Animais de Doenças , Humanos , Camundongos , Mutação , Fenótipo , Estudos Retrospectivos
18.
J Neurosurg Pediatr ; 28(4): 425-431, 2021 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-34388723

RESUMO

OBJECTIVE: Crouzon syndrome with acanthosis nigricans (CAN) is a rare and clinically complex subtype of Crouzon syndrome. At three craniofacial centers, this multicenter study was undertaken to assess clinical signs in relation to the required interventions and treatment course in patients with CAN. METHODS: A retrospective cohort study of CAN was performed to obtain information about the clinical treatment course of these patients. Three centers participated: Erasmus Medical Centre, Rotterdam, the Netherlands; John Radcliffe Hospital, Oxford, United Kingdom; and Hôpital Necker-Enfants Malades, Paris, France. RESULTS: Nineteen patients (5 males, 14 females) were included in the study. All children were operated on, with a mean of 2.2 surgeries per patient (range 1-6). Overall, the following procedures were performed: 23 vault expansions, 10 monobloc corrections, 6 midface surgeries, 11 foramen magnum decompressions, 29 CSF-diverting surgeries, 23 shunt-related interventions, and 6 endoscopic third ventriculostomies, 3 of which subsequently required a shunt. CONCLUSIONS: This study demonstrates that patients with the mutation c.1172C>A (p.Ala391Glu) in the FGFR3 gene have a severe disease trajectory, requiring multiple surgical procedures. The timing and order of interventions have changed among patients and centers. It was not possible to differentiate the effect of a more severe clinical presentation from the effect of treatment order on outcome.


Assuntos
Acantose Nigricans/cirurgia , Disostose Craniofacial/cirurgia , Acantose Nigricans/complicações , Acantose Nigricans/genética , Encéfalo/diagnóstico por imagem , Criança , Pré-Escolar , Protocolos Clínicos , Estudos de Coortes , Anormalidades Craniofaciais/cirurgia , Disostose Craniofacial/complicações , Disostose Craniofacial/genética , Descompressão Cirúrgica , Feminino , Forame Magno/cirurgia , França , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Mutação/genética , Países Baixos , Receptor Tipo 3 de Fator de Crescimento de Fibroblastos/genética , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Reino Unido , Ventriculostomia
19.
Clin Plast Surg ; 48(3): 497-506, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34051901

RESUMO

The introduction of distraction osteogenesis to frontofacial monobloc advancement has increased the safety of the procedure. One hundred forty-seven patients with syndromic craniosynostosis underwent frontofacial monobloc advancement using 4 internal distractors. Twenty-five were aged 18 months or less. Ten patients presented with a tracheostomy, 5 (50%) were decannulated after surgery, and 3 others (30%) required an additional intervention before decannulation. Six patients required the addition of a transfacial pin and external traction. Very early frontofacial monobloc with 4 internal distractors is a safe and effective treatment to protect the ophthalmic, neurologic, and respiratory functions in infants with severe syndromic craniosynostosis.


Assuntos
Disostose Craniofacial/cirurgia , Osteogênese por Distração/métodos , Disostose Craniofacial/complicações , Craniossinostoses/complicações , Craniossinostoses/cirurgia , Ossos Faciais/anormalidades , Ossos Faciais/cirurgia , Feminino , Humanos , Lactente , Masculino , Placas Oclusais , Osteogênese por Distração/instrumentação , Síndromes da Apneia do Sono/etiologia , Síndromes da Apneia do Sono/cirurgia , Traqueostomia
20.
J Craniofac Surg ; 32(7): e615-e616, 2021 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-33654032

RESUMO

ABSTRACT: Patients with craniofacial microsomia often require multiple surgical interventions to address both hard and soft tissue defects. For improvement of soft tissue defects, microvascular free tissue transfers have been widely performed after puberty. To camouflage facial asymmetry, early fat grafting was performed on five six-month-old patients, and acceptable outcomes were obtained without overcorrection. This result suggests that early fat grafting in craniofacial microsomia is useful to camouflage asymmetrical facial contours.


Assuntos
Síndrome de Goldenhar , Procedimentos de Cirurgia Plástica , Tecido Adiposo/transplante , Pré-Escolar , Face/cirurgia , Assimetria Facial/cirurgia , Síndrome de Goldenhar/cirurgia , Humanos
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