Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 159
Filtrar
1.
Proc Biol Sci ; 291(2018): 20232625, 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38471561

RESUMO

Behavioural plasticity allows organisms to respond to environmental challenges on short time scales. But what are the ecological and evolutionary processes that underlie behavioural plasticity? The answer to this question is complex and requires experimental dissection of the physiological, neural and molecular mechanisms contributing to behavioural plasticity as well as an understanding of the ecological and evolutionary contexts under which behavioural plasticity is adaptive. Here, we discuss key insights that research with Trinidadian guppies has provided on the underpinnings of adaptive behavioural plasticity. First, we present evidence that guppies exhibit contextual, developmental and transgenerational behavioural plasticity. Next, we review work on behavioural plasticity in guppies spanning three ecological contexts (predation, parasitism and turbidity) and three underlying mechanisms (endocrinological, neurobiological and genetic). Finally, we provide three outstanding questions that could leverage guppies further as a study system and give suggestions for how this research could be done. Research on behavioural plasticity in guppies has provided, and will continue to provide, a valuable opportunity to improve understanding of the ecological and evolutionary causes and consequences of behavioural plasticity.


Assuntos
Poecilia , Animais , Poecilia/fisiologia , Adaptação Fisiológica , Comportamento Predatório , Evolução Biológica
2.
Mali méd. (En ligne) ; 39(1)2024. tables
Artigo em Francês | AIM (África) | ID: biblio-1554335

RESUMO

Introduction : La maladie thromboembolique veineuse (MTEV) regroupe : la thrombose veineuse profonde(TVP) et l'embolie pulmonaire(EP).Ce travail a été initié pour identifier les particularités féminines si elles existent. Matériels et Méthode : il s'agissait d'étude rétrospective, descriptive réalisée dans le service de cardiologie du CHU de Kati sur une période allant du 01 janvier 2014 au 31 décembre 2021. Ont été inclues les patientes hospitalisées durant la dite période pour maladie thromboemboliqueveineuse. Les variables étudiées étaient les données sociales démographiques, les facteurs de risque, les paramètres cliniques et paracliniques, les aspects thérapeutiques et évolutifs. Résultats : Au total nous avons enregistré 68 cas de MTEV dont 40 (58,8%) femmes. Il s'agissait 12 (30%) cas de TVP, 25 (62,5%) d'EP et leur association dans 3 (7,5%) cas. La majorité (82,5%) des patientes était des femmes au foyer.Le post partum représentait 10% des cas. La probabilité clinique, selonle score de Wells était élevée chez 93% des TVP, intermédiaire pour les cas d'embolie pulmonaire avec 50%. L'angioscanner révélait que l'embolie pulmonaire était bilatérale dans 80% des cas. L'héparine et l'AVK ont été les plus utilisés. La mortalité était de 7,5%. Conclusion : les femmes sont plus victime des maladies thromboemboliques veineuses que les hommes. Le post partum est une situationparticulière chez la femme. Les récidives ne sont pas rares


Introduction: Venous thromboembolic disease (MTEV) includes: deep venous thrombosis (DVT) and pulmonary embolism (PE).This work was initiated to identify the female particularities if they exist.Materials and Method: This was a retrospective, descriptive study conductedin the cardiology department of the Kati university hospital over a period from January 01, 2014 to December 31, 2021.Patients hospitalized during the period for venousthromboembolic disease were included.The variables studied were demographic social data, risk factors, clinical and para-clinical parameters, therapeutic and evolutionary aspects. Results: In total we recorded 68 cases of MTEV of which 40 (58.8%) women. There were 12 (30%) cases of deep vein thrombosis, 25 (62.5%) cases of pulmonary embolism and their association in 3 (7.5%) cases.The majority (82.5%) of patients were housewives.Thepostpartum accounted for 10% of cases.The clinical probability according to the Wells score was high in 93% of deep vein thrombosis, intermediate for cases of pulmonary embolism with 50%.Angio-CT showed that pulmonary embolism was bilateral in 80% of cases. Heparin and anti-vitamin K were the most commonly used. Mortality was 7.5%. Conclusion: women are more victims of venous thromboembolic diseases than men. Postpartum is a special situation for women. Recurrences are not uncommon

3.
J Fr Ophtalmol ; 46(10): 1174-1181, 2023 Dec.
Artigo em Francês | MEDLINE | ID: mdl-37867122

RESUMO

BACKGROUND: Basal cell carcinomas (BCCs) represent 90% of malignant tumors of the eyelids, which can be locally invasive and destructive. The observation of histological safety margins (MHS) allows for the prevention of recurrence while maintaining a fair compromise between aesthetics and functionality. However, to date, there is no consensus or national recommendations concerning the MHS to be observed according to the various histological subtypes of BCCs. METHODS: Through a retrospective analysis of patient records and corresponding excisional slides, we studied the 6-year recurrence rate of 98 patients who underwent surgery for palpebral BCC. RESULTS: MHS were mostly absent in the excisional specimens of recurrent BCCs and significantly more narrow than in non-recurrent BCCs, on average over 2mm. CONCLUSION: The results of our study suggest that an average MHS greater than 2mm prevents most recurrences.


Assuntos
Carcinoma Basocelular , Neoplasias Cutâneas , Humanos , Estudos Retrospectivos , Carcinoma Basocelular/cirurgia , Carcinoma Basocelular/patologia , Pálpebras/patologia , Neoplasias Cutâneas/cirurgia , Neoplasias Cutâneas/patologia , Recidiva Local de Neoplasia/epidemiologia , Recidiva Local de Neoplasia/prevenção & controle
4.
eNeurologicalSci ; 32: 100470, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37654736

RESUMO

Introduction: In sub-Saharan Africa (SSA), stroke is a major public health problem and the etiological aspects are poorly studied and documented because of under-medicalization; the syphilitic etiology is rarely mentioned. Patients and methods: We performed a retrospective study of 472 patients hospitalized for ischemic stroke between 2016 and 2021 in the Neurology Department of the University Hospital of Conakry, confirmed by neuroradiological explorations (brain CT, MRI-Angio) and a biological workup including VDRL-TPHA serological reactions in blood and CSF. Results: Syphilitic etiology was retained for six (6) patients (4 men and 2 women) with a mean age of 43 years (extremes 36 and 49 years). The clinical picture was dominated by carotid syndromes: superficial and deep sylvian syndrome, anterior cerebral artery syndrome and vertebro-basilar syndromes and one case of lacunar syndrome.The diagnosis was based on the positivity of serological reactions (VDRL-TPHA) in blood and cerebrospinal fluid (CSF) and the presence of a predominantly lymphocytic hypercellularity and a hyperproteinorachy in the CSF in the absence of any other etiology. Conclusion: These neurological vascular syndromes consecutive to a cerebral treponematous attack are often the result of a still poorly conducted management of primary and secondary syphilis in our country.

5.
Georgian Med News ; (334): 116-124, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36864805

RESUMO

In sub-Saharan Africa (SSA), the etiological factors of epilepsy are multiple and phacomatoses, in particular Sturge weber's disease, are rarely reported due to under-medicalization and insufficient multidisciplinary care. We carried out a retrospective study of 216 patients hospitalized for recurrent epileptic seizures between 2015 and 2022 in the neurology and pediatrics department of the University Hospital Center of Conakry, among whom eight (8) patients were identified for Sturge Weber's disease in order to reassess this pathology from a clinical and paraclinical point of view in a tropical environment. Sturge Weber's disease was retained in eight (8) on the presence of symptomatic partial epileptic seizures (age 6 months to 14 years) with frequency of status epilepticus, homonymous lateral hemiparesis linked to occipital involvement, piriform calcifications on imaging and ocular disorders. The delay in consultation and medical care revealed severe mental deterioration in our patients. This study shows a stereotyped clinical picture in a context of aggravation of signs related to a delay in multidisciplinary management. These results are important for the diagnostic, therapeutic and prognostic discussion.


Assuntos
Disfunção Cognitiva , Epilepsia , Criança , Humanos , Estudos Retrospectivos , Guiné , Epilepsia/complicações , Epilepsia/diagnóstico , Convulsões/diagnóstico , Convulsões/etiologia
6.
Georgian Med News ; (334): 142-146, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36864809

RESUMO

In sub-Saharan Africa, the COVID-19 pandemic has caused severe malnutrition in elderly populations with the appearance of vitamin deficiencies, in particular thiamine responsible for Gayet Wernicke's encephalopathy (EGW). We present a series of six (6) patients hospitalized in the Neurology Department of the CHU Ignace Deen for the management of a brain syndrome with vigilance disorders after recovery from COVID-19, including oculomotor disorders, motor incoordination on a course of severe weight loss. The six patients underwent an evaluation of malnutrition by determining the WHO body mass index, the Detsky index, the serum albumin assay, the thiamine assay and a neuroradiological assessment (MRI) and an electroencephalogram (EEG) examination although this does not seem necessary for diagnosis. Study of nutritional status: weight loss greater than 5%, patients in Desky group B and C, plasma albumin<30 g/l, lowered thiamine and MRI neuroradiological data: by the existence of hypersignals in certain regions of the neocortex, certain gray nuclei, the mammillary bodies the thalamic nuclei close to the wall of the 3rd ventricle and the regions bordering the 4th ventricle sign Gayet Wernicke's encephalopathy syndrome. This study shows a stereotyped clinical, biological, neuroradiological and evolutionary profile of Gayet Wernicke's encephalopathy in elderly subjects recovered from Covid-19 with proven malnutrition. These results are useful for the therapeutic and prognostic discussion.


Assuntos
Encefalopatias , COVID-19 , Desnutrição , Encefalopatia de Wernicke , Idoso , Humanos , Encefalopatia de Wernicke/diagnóstico , Encefalopatia de Wernicke/diagnóstico por imagem , COVID-19/complicações , Pandemias , Guiné , Tiamina/uso terapêutico , Desnutrição/complicações
7.
Mali Med ; 37(3): 10-14, 2022.
Artigo em Francês | MEDLINE | ID: mdl-38514960

RESUMO

INTRODUCTION: Acute intestinal obstruction (AIO) is a syndrome defined by the cessation of intestinal transit caused by an obstacle or paralysis of intestinal peristalsis. It is a diagnostic and therapeutic emergency. The multi-bar CT scan has revolutionized the management of this pathology, as it allows the surgeon to answer different questions. The aim of our study was to describe the CT aspects of AIO, to determine the etiologies and to show the place of CT in the management of AIO. MATERIAL AND METHOD: This was a retrospective descriptive study conducted over 5 years (January 2010 to December 2015) on 81 patient files collected in the imaging departments of the CHU Aristide Le Dantec and the Hôpital Principal. The files retained were those whose diagnosis was established from the clinic, imaging and/or not from surgery. RESULTS: Mechanical occlusions represented 94.4% (76 cases) and functional occlusions 5.6% (05 cases). They were of the small bowel type in 70% of cases and colonic in 30%. The elementary lesions found were: transitional zone (36 patients), feces sign (28 patients), beak sign (06 patients), whirlpool sign (11 patients), signs of severity (36 patients). Seventy-two patients received surgery and 04 patients received medical treatment. The preoperative diagnosis was confirmed by surgery in 68 patients. Surgery corrected the diagnosis in 04 cases. Signs of severity were confirmed at surgery in all our patients. CONCLUSION: The CT scan has a major role in the therapeutic choice of AIO. It should be requested in first intention before an occlusive syndrome.


INTRODUCTION: L'occlusion intestinale aiguë (OIA) est un syndrome défini par l'arrêt du transit intestinal provoqué par un obstacle ou par une paralysie du péristaltisme intestinal. Il s'agit d'une urgence diagnostique et thérapeutique. Le scanner multibarrette a révolutionné la prise en charge de cette pathologie, car permettant de répondre aux différentes questions du chirurgien.Le but de notre étude était de décrire les aspects scanographiques des OIA, de déterminer les étiologies et de montrer la place de la TDM dans la prise en charge des OIA. MATÉRIEL ET MÉTHODE: Il s'agissait d'une étude rétrospective descriptive réalisée sur 05ans (Janvier 2010 à décembre 2015) portant sur 81 dossiers de patients colligés dans les services d'imagerie du CHU Aristide Le Dantec et de l'hôpital Principal. Les dossiers retenus sont ceux dont le diagnostic était établi à partir de la clinique, de l'imagerie et/ou non de la chirurgie. RÉSULTATS: Les occlusions mécaniques représentaient 94,4% (76 cas) et fonctionnelles 5.6% (05 cas).Elles étaient de type grêle dans 70% des cas et colique dans 30%.Les lésions élémentaires mises en évidence étaient : zone transitionnelle (36 patients), signe du fèces (28 patients), signe du bec (06 patients), signe du tourbillon (11 patients), signes de gravité (36 patients). Soixante-douze patients ont bénéficié d'une chirurgie et 04 patients d'un traitement médical. Le diagnostic préopératoire était confirmé par la chirurgie chez 68 patients. La chirurgie a redressé le diagnostic dans 04 cas. Les signes de gravité étaient confirmés à la chirurgie chez tous nos patients. CONCLUSION: La TDM occupe une place prépondérante dans le choix thérapeutique des OIA. Elle doit être demandée en première intention devant un syndrome occlusif.

8.
Mali Med ; 37(1): 54-60, 2022.
Artigo em Francês | MEDLINE | ID: mdl-38196252

RESUMO

OBJECTIVE: to report the epidemiological, clinical, paraclinical and therapeutic characteristics of the first COVID 19 patients in intensive care. PATIENTS AND METHOD: retrospective descriptive and analyticalstudy over 4 months, covering all adult patients tested positive for SARS-Cov-2 and admitted to intensive care. RESULTS: 49 patients, 35 men and 14 women (2% of cases) were admitted to intensive care. The median age was 64 years [26 - 92]. Hypertension (16; 32.6%), and diabetes (11; 22.4%) were the mostcommoncomorbidities. The most common symptoms on admission were cough (38; 80.9%), shortness of breath (35; 74.5%), and fever (33; 70.2%). The median time to onset of symptoms was 11 days. Non-invasive ventilation (NIV) was used in 21 patients (42.9%). Fourteen (28.6%) wereintubated and put onassisted ventilation. The mean hospital stay was 7.77 ± 7.30 days. We recorded 20 (40.8%) deaths. Factors associated with death were high blood pressure, onset of shock, and on mechanical ventilation. CONCLUSION: Covid-19 remains a public healthproblemwith high morbidity and mortality. The morbidity and mortalityfactorsare: comorbidities and the severity of the clinicalpicture.


OBJECTIF: rapporter les caractéristiques épidémiologiques, cliniques, paracliniques et thérapeutiques des premiers patients COVID 19 en réanimation. PATIENTS ET MÉTHODE: étude rétrospective descriptive et analytique sur 4 mois, portant sur l'ensemble des patients adultes testés positif au SARS-Cov-2 et admis en réanimation. RÉSULTATS: 49 patients, 35 hommes et 14 femmes (2% des cas) étaient admis en réanimation. L'âge médian était de 64 ans [26 ­ 92]. L'HTA (16 ; 32,6%), et le diabète (11 ; 22,4%) étaient les comorbidités les plus fréquentes. Les symptômes les plus fréquents à l'admission étaient la toux (38 ; 80,9%), l'essoufflement (35 ; 74,5%), et la fièvre (33 ; 70,2%). Le délai médian d'apparition des symptômes était de 11 jours. La ventilation non invasive (VNI) a été utilisée chez 21 patients (42,9%). Quatorze (28,6%) ont été intubés et mise sous ventilation assistée. La durée moyenne d'hospitalisation était de 7,77 ± 7,30 jours. Nous avons enregistré 20 (40,8%) décès. Les facteurs associés au décès étaient l'hypertension artérielle, la survenue d'un état de choc, la mise sous ventilation assistée. CONCLUSION: la Covid-19 reste un problème de santé publique avec une morbi mortalité élevée. Les facteurs de morbi-mortalité sont : les comorbidités et la sévérité du tableau clinique.

9.
Mali Med ; 37(1): 32-35, 2022.
Artigo em Francês | MEDLINE | ID: mdl-38196251

RESUMO

Atrial fibrillation is the most frequent permanent rhythm disorder.Theaim of this work was to determine the epidemiological and clinical aspects of atrial fibrillation cases hospitalized in the cardiology department of the University Hospital of Kati. MATERIALS AND METHODS: We carried out a descriptive retrospective study, from January 2018 to December 2019.Patients of all ages and both sexes with clinical and EKG atrial fibrillation admitted to the department during the study period were included in the study.The variables studiedwere: socio-demographic characteristics, clinical signs, classification of atrial fibrillation, and comorbidities associated. RESULTS: A total of 52 patients were included in the studyof 203 cases hospitalized in the department, with a hospital prevalence of 25.61%, the female sex was predominant 69.23%. The main reason for consultation was heart failure syndrome (46.15%).Arterial hypertension (55.76%) was the mostassociatedcomorbidity. Permanent atrial fibrillation accounted for 63.46% of cases . CONCLUSION: Atrial fibrillation is the most frequent arrhythmia in our environment, preventive measures must be put in place for early detection and better management of comorbiditiesassociatedwith atrial fibrillation.


La fibrillation auriculaire est le trouble du rythme le plus fréquent. Le but de ce travail était de déterminer les aspects épidémiologiques et cliniques de la fibrillation atriale dans le service de cardiologie du CHU de Kati. MATÉRIELS ET MÉTHODES: Il s'agit d'une étude rétrospective descriptive menée de janvier 2018 à décembre 2019. Ont été inclus dans cette étude les patients de tout âge et des deux sexes ayant présenté une fibrillation atriale sur des critères cliniques et électrocardiographiques, admis dans le service pendant la période d'étude. Les variables étudiées étaient : les caractéristiques sociodémographiques, les signes cliniques et électriques, et les comorbidités associées. RÉSULTATS: Au total 52 patients ont été inclus dans l'étude sur 203 cas hospitalisés dans le service soit une prévalence hospitalière de 25,61%, le sexe féminin a été prédominant 69,23%. Le principal motif de consultation était le syndrome d'insuffisance cardiaque (46,15%). L'hypertension artérielle (55,76%) a été la comorbidité la plus associée. La fibrillation atriale permanente représentait 63,46% des cas. CONCLUSION: La fibrillation atriale est l'arythmie la plus fréquente dans notre milieu, des mesures préventives doivent être mise en place pour une détection précoce et une meilleure prise en charge des comorbidités associées.

11.
Trop Med Int Health ; 26(2): 166-172, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33159424

RESUMO

OBJECTIVE: Intra-cerebral Haemorrhage (ICH) seems more prevalent in sub-Saharan Africa (SSA) than in High-Income Countries (HIC) with poorer clinical outcome. Higher impact of hypertension and/or amyloid angiopathy could account for this disproportion. Here, we sought to (i) retrospectively compare ICH clinical and imaging patterns in Belgium and Guinea and in a subsequent cohort (ii) prospectively compare brain MRI characteristics to seek evidence for a different proportion of amyloid angiopathy patterns. METHODS: Ninety one consecutive patients admitted for spontaneous ICH at Brussels Erasme-ULB Hospital and at Conakry Ignace Deen-UGANC were retrospectively compared in terms of ICH volume estimated with the ABC/2 method, clinical characteristics and modified ranking (mRS) score at 30 days. mRS was dichotomised as good outcomes (≤3) and poor outcomes (>3). A prospective cohort of 30 consecutive patients with ICH admitted at CHU Conakry Ignace Deen-UGANC was prospectively included to undergo brain MRI. Results of the Guinean MRI were compared to 30 patients randomly selected from Brussels' initial cohort. Paired Student's t-test and Mann-Whitney u-test were used for group comparisons. RESULTS: Age of ICH onset was higher in Belgium (68 ± 17 years vs. 56 ± 14 years, P < 0.01) while ICH volume and 30-day mortality rate were higher in Guinea (20 ml vs. 11 ml, P < 0.01 and mortality 33% vs. 10 %, P < 0.01). ICH burden in survivors in Conakry and Brussels showed respectively good outcomes in 56.7% and 60.4% (P = 0.09) and poor outcomes in 10.3% vs. 29.6% (P < 0.001). MRI analysis of the prospective cohort failed to disclose significant differences regarding brain MRI characteristics. CONCLUSIONS: Intra-cerebral Haemorrhage affected patients 15 years younger in Guinea with larger haematoma volumes and higher mortality than in Belgium. MRI findings did not show more prevalent amyloid angiopathy pathology suggesting that better primary prevention of hypertension could positively impact ICH epidemiology in Guinea.


OBJECTIF: L'hémorragie intracérébrale (HIC) semble plus répandue en Afrique subsaharienne (ASS) que dans les pays à revenu élevé (PRE), avec des résultats cliniques moins bons. Un impact plus élevé de l'hypertension et/ou de l'angiopathie amyloïde pourrait expliquer cette disproportion. Ici, nous avons cherché à (i) comparer rétrospectivement les schémas cliniques et d'imagerie de l'HIC en Belgique et en Guinée et dans une cohorte subséquente (ii) comparer de manière prospective les caractéristiques de l'IRM cérébrale pour rechercher des preuves d'une proportion différente des profils d'angiopathie amyloïde. MÉTHODES: 91 patients consécutifs admis pour HIC spontanée à l'hôpital Erasme-ULB de Bruxelles et à Ignace Deen-UGANC de Conakry ont été rétrospectivement comparés en termes de volume d'HIC estimé avec la méthode ABC/2, les caractéristiques cliniques et le score de classement modifié (mRS) à 30 jours. Le mRS a été dichotomisé en bons résultats (≤3) et mauvais résultats (>3). Une cohorte prospective de 30 patients consécutifs atteints d'HIC admis au CHU Ignace Deen-UGANC de Conakry a été incluse de manière prospective pour subir une IRM cérébrale. Les résultats de l'IRM guinéenne ont été comparés à ceux de 30 patients sélectionnés aléatoirement dans la cohorte initiale de Bruxelles. Le test t de Student apparié et le test u de Mann-Whitney ont été utilisés pour les comparaisons de groupe. RÉSULTATS: L'âge d'apparition de l'HIC était plus élevé en Belgique (68 ± 17 ans vs 56 ± 14 ans, P < 0,01) tandis que le volume de l'HIC et le taux de mortalité à 30 jours étaient plus élevés en Guinée (20 ml vs 11 ml, P < 0,01 et mortalité 33% vs 10%, P <0,01). La charge de l'HIC chez les survivants à Conakry et à Bruxelles a montré respectivement de bons résultats dans 56,7% et 60,4% (P = 0,09) et de mauvais résultats dans 10,3% vs 29,6% (P < 0,001). L'analyse IRM de la cohorte prospective n'a pas permis de révéler de différences significatives concernant les caractéristiques de l'IRM cérébrale. CONCLUSIONS: L'HIC a touché des patients 15 ans plus jeunes en Guinée avec des volumes d'hématomes plus importants et une mortalité plus élevée qu'en Belgique. Les résultats de l'IRM n'ont pas montré de pathologie angiopathique amyloïde plus répandue, ce qui suggère qu'une meilleure prévention primaire de l'hypertension pourrait avoir un impact positif sur l'épidémiologie de l'HIC en Guinée.


Assuntos
Angiopatia Amiloide Cerebral/diagnóstico por imagem , Hemorragia Cerebral/diagnóstico por imagem , Hipertensão/diagnóstico por imagem , Imageamento por Ressonância Magnética , Adulto , Idoso , Idoso de 80 Anos ou mais , Bélgica/epidemiologia , Angiopatia Amiloide Cerebral/complicações , Hemorragia Cerebral/mortalidade , Feminino , Guiné/epidemiologia , Humanos , Hipertensão/complicações , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Estudos Retrospectivos , Fatores de Risco
12.
Mali Med ; 36(1): 49-51, 2021.
Artigo em Francês | MEDLINE | ID: mdl-37973573

RESUMO

OBJECTIVES: The objectives were to describe the epidemiological and prognostic aspects of eclampsia in the Bougouni reference health center. METHODS: This was a transversal prospective, descriptive study from January 1 to December 31, 2015 in the gynecology-obstetrics department of Bougouni reference health center. Were included, all pregnant or postpartum women diagnosed with eclampsia during the study period. RESULTS: The frequency of eclampsia was 2.54%. They were adolescent girls in 50% of cases, primigest in 62.5% of cases, unschooled in 67.5% of cases, having not performed any antenatal care in 70% of cases. Eclampsia occurred in antepartum in 37.5% of cases, in 5% in perpartum and in 57.5% in postpartum. Therapeutically, nicardipine with 72.5% and nifedipine with 22.5% were the antihypertensive drugs used. As for anticonvulsants, magnesium sulfate (MgSO4) was used in 92.5% and diazepam in 7.5%. The maternal-fetal prognosis was marked by 2.5% of maternal death, 27% of prematurity and 27.5% of fetal death in utero. CONCLUSION: Eclampsia is a dreadful pathology with serious maternal and fetal complications.


OBJECTIFS: Les objectifs étaient de décrire les aspects épidémiologique et pronostique de l'éclampsie dans le centre de santé de référence de Bougouni. MÉTHODES: Il s'agissait d'une étude transversale prospective, descriptivedu 1er janvier au 31 décembre 2015 dans le service de gynécologie-obstétrique du centre de santé de référence de Bougouni. Ont été incluses, toutes les femmes enceintes ou les accouchées chez qui le diagnostic de crise d'éclampsie a été retenu pendant la période d'étude. RÉSULTATS: La fréquence de l'éclampsie a été de 2,54%. Il s'agissait d'adolescentes dans 50% des cas, primigestes dans 62,5% des cas, non scolarisées dans 67,5% des cas,n'ayant effectuées aucune consultation prénatale dans70% des cas. L'éclampsie est survenue en antépartumdans 37,5% des cas, dans 5% en perpartum et dans 57,5% en postpartum. Sur le plan thérapeutique, la nicardipine avec 72,5% et la nifédipine avec 22,5% ont été les antihypertenseurs utilisés. Quant aux anticonvulsivants, le sulfate de magnésium (MgSO4) a été utilisé dans 92,5% et le diazépam dans 7,5%. Le pronostic materno-fœtal a été marqué par 2,5% de décès maternel, 27% de prématurité et 27,5% de mort fœtale in-utéro. : L'éclampsie est une pathologie redoutable aux complications maternelles et fœtales graves.

13.
Biol Lett ; 16(9): 20200424, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32961092

RESUMO

For many pollinators, flowers provide predictable temporal schedules of resource availability, meaning an ability to learn time-dependent information could be widely beneficial. However, this ability has only been demonstrated in a handful of species. Observations of Heliconius butterflies suggest that they may have an ability to form time-dependent foraging preferences. Heliconius are unique among butterflies in actively collecting pollen, a dietary behaviour linked to spatio-temporally faithful 'trap-line' foraging. Time dependency of foraging preferences is hypothesized to allow Heliconius to exploit temporal predictability in alternative pollen resources. Here, we provide the first experimental evidence in support of this hypothesis, demonstrating that Heliconius hecale can learn opposing colour preferences in two time periods. This shift in preference is robust to the order of presentation, suggesting that preference is tied to the time of day and not due to ordinal or interval learning. However, this ability is not limited to Heliconius, as previously hypothesized, but also present in a related genus of non-pollen feeding butterflies. This demonstrates time learning likely pre-dates the origin of pollen feeding and may be prevalent across butterflies with less specialized foraging behaviours.


Assuntos
Borboletas , Animais , Cor , Aprendizagem , Pólen , Recompensa
14.
Mali Med ; 35(4): 27-32, 2020.
Artigo em Francês | MEDLINE | ID: mdl-37978741

RESUMO

OBJECTIVE: to compare aspects of the diastolic component of umbilical artery flow with fetal fate parameters. MATERIAL AND METHODS: this was a prospective, cross-sectional study at the Kaolack Regional Hospital over 6 months including patients with an at-risk pregnancy and a gestational age greater than 20 SA. The aspect of umbilical artery flow, umbilical artery IR and cerebro-placental index were studied.We compared the velocity data with the rates of fetal suffering, low birth weight and perinatal mortality. The statistical analysis was done with EPI info software version 7, Excel 2010 and SPSS 20.0 with a p-value of less than 5%. RESULTS: 46 patients were included with an average age of 24.54 years. The mean gestational age was 33.7 AS. The diastolic component of umbilical artery flow was null in 19.6%; reversed in 10.9%; decreased in 21.7% and normal in 47.8%. Confrontation with fetal fate parameters found a rate of 78.6% fetal suffering in the null or reversed diastolic components group compared to 34.4% in the non-zero diastolic components group. For low birth weight, this rate was 92.9% compared to 28.1%. The perinatal mortality rate was 64.2% compared to 12.5%. CONCLUSION: The umbilical artery Doppler study plays a major role in the monitoring and obstetric management of high-risk pregnancies. Our results demonstrate the correlation between a diastolic component of the flow of the pathological umbilical artery and the adverse outcome of the pregnancy at risk.


OBJECTIF: confronter les aspects de la composante diastolique du flux de l'artère ombilicale aux paramètres du devenir fœtal. MATÉRIEL ET MÉTHODES: il s'agissait d'une étude prospective, transversale à l'Hôpital régional de Kaolack sur 6 moisincluant les patientes avec une grossesse à risque et un âge gestationnel supérieur à 20 SA. Etaient étudiés l'aspect du flux de l'artère ombilicale, l'IR de l'artère ombilicale et l'index cérébro-placentaire. Nous avons confronté les données vélocimétriques au taux de souffrance fœtale, de faible poids de naissance et de mortalité périnatale. L'analyse statistique a été faite avec le logiciel EPI info version 7, Excel 2010 et SPSS 20.0 avec une p-value inférieure à 5%. RÉSULTATS: 46 patientes étaient incluses avec un âge moyen était de 24,54 ans. L'âge gestationnel moyen était de 33,7 SA. La composante diastolique du flux de l'artère ombilicale était nulle dans 19,6% ; inversée dans 10,9% ; diminuée dans 21,7% et normale dans 47,8%.La confrontation avec les paramètres du devenir fœtal trouvait un taux de souffrance fœtale de 78,6% dans le groupe des composantes diastoliques nulles ou inversées contre 34,4% dans le groupe des composantes diastoliques non nulles. Pour le faible poids de naissance ce taux était de 92,9% contre 28,1%. Concernant le taux de mortalité périnatale on notait 64,2% contre 12,5%. CONCLUSION: L'étude Doppler de l'artère ombilicale joue un rôle majeur dans la surveillance et la prise en charge obstétricale des grossesses à risque. Nos résultats démontrent la corrélation entre une composante diastolique du flux de l'artère ombilicale pathologique et l'issue défavorable de la grossesse à risque.

15.
Int J Stroke ; 15(6): 666-667, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-31631795

RESUMO

Sub-Saharan Africa has extremely high stroke prevalence and case fatality. Most Sub-Saharan African regions are uncharted in terms of stroke characteristics, epidemiology, and burden. We report here the results from the first stroke registry in Guinea.


Assuntos
Acidente Vascular Cerebral , Guiné/epidemiologia , Hospitais , Humanos , Prevalência , Sistema de Registros , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/terapia
16.
Front Neurol ; 10: 856, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31447769

RESUMO

Introduction: Sub-Saharan Africa (SSA) has the highest stroke prevalence along with a case fatality that amounts to 40%. We aimed to assess the effect of a minimal setting stroke unit in SSA Public hospital on stroke mortality and main medical complications. Materials and Methods: The study was set in Conakry, Guinea, Ignace Deen public referral hospital. Clinical characteristics, hospital mortality and main medical stroke complications rates (pneumonia, urinary tract infections, sores and venous thromboembolism) of admitted stroke patients after the installation of a minimal stroke unit equipped with heart rate, blood pressure and blood oxygen saturation monitoring and portable oxygen concentrator (POST) were compared to a similar number of stroke patients admitted before the stroke unit creation (PRE). Results: PRE (n = 318) and POST (n = 361) stroke, patients were comparable in term of age (61 ± 14 vs. 60 ± 14.8 years, p = 0.24), sex (56 vs. 50% males, p = 0.09), High blood pressure rate (76.7 vs. 79%, p = 0.44), stroke subtype (ischemic in 72 vs. 78% of cases, p = 0.05) and NIHSS (11 ± 4 vs. 11 ± 4, p = 0.85). Diabetes was more frequent in the PRE group (19 vs. 9%, p < 0.001). Mortality was significantly lower in the POST group (7.2 vs. 22.3%, p < 0.0001) as well as medical complications (4.1 vs. 27.7%, p < 0.001) and lower pneumonia rate (3.3 vs. 14.5%, p < 0.001). Conclusions: Minimally equipped stroke units significantly reduce stroke mortality and main medical complications in SSA.

17.
Med Sante Trop ; 29(2): 170-174, 2019 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-31379343

RESUMO

The severity of a blood pressure spike is more closely associated with serious organ dysfunction, which can be life-threatening in the short term, than with the blood pressure level itself. A hypertensive emergency is defined as the presence of high blood pressure associated with acute organ dysfunction. The specific nature of high blood pressure in black patients may cause more frequent hypertensive emergencies. In this retrospective case study, we report our experience and highlight the specific prognosis for black African patients. We examined three patients, aged 27, 47, and 59 years, admitted to intensive care for a hypertensive emergency with neurological distress, and all in status epilepticus. Average blood pressure was 171 mm HG. Treatment included intubation, ventilation, and induction of a barbiturate coma, plus antihypertensive treatment. The outcome was favorable, with an average stay of 5 days. The frequency of hypertensive emergencies varies according to age, ethnic origin, and period studied. Black patients often suffer from more severe forms of high blood pressure, arising at an earlier age. Hypertensive encephalopathy can occur in patients with or without chronic hypertension. Without treatment, the encephalopathy induces a coma that can quickly become fatal. Its spontaneous course is catastrophic (10-20% survival at one year), but more favorable with adequate treatment (60-80% survival at five years).


Assuntos
Encefalopatia Hipertensiva/complicações , Estado Epiléptico/complicações , Adulto , População Negra , Emergências , Humanos , Encefalopatia Hipertensiva/diagnóstico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Estado Epiléptico/diagnóstico
18.
Mali Med ; 34(3): 24-29, 2019.
Artigo em Francês | MEDLINE | ID: mdl-35897217

RESUMO

AIM: Describe the ultrasound aspects of rotator cuff tear by specifying the contribution of this technique in the shoulder scan. PATIENTS AND METHOD: We conducted a prospective six-month analytical study from January 1, 2014 to May 31, 2014, on the rupture of the shoulder rotator cuff in the radiology department of the Béthune hospital center. Ultrasound examinations were performed using a Toshiba Aplion300 device using two linear probes of 13 and 15 Mhz. Data processing is done with SPSS 17.0 software. The Chi-square test was used to compare data with a significant threshold for p <0.05. RESULTS: Our work focused on 28 patients who had a cuff tear during the ultrasound examination. The age group between 50 and 59 years was the most represented, 32.1%. Ultrasound showed calcification tendinopathy of the rotator cuff in 46.4% of cases. The rotator cuff tears were present in the supraspinatus, infra-spinal and subscapular tendons in 96.4% (27 cases), 32% (9 cases) and 21.4% (6 cases), respectively. In 58.3% there was a transfixing rupture of the supraspinatus with 72.3% non-transfixing ruptures. Seven patients had supraspinous tendon retraction including 6 cases of retraction stage 1 and 5 cases of stage 2 retraction. The infraspinatus was the second tendon of the cuff affected with 9 cases (32%) followed by the subscapularis 6 cases (21, 4%). We did not record lesions (rupture or calcification) of Teres minor. Radiography was normal in 7 patients, ie 32%. CONCLUSION: Ultrasonography, coupled with standard radiography, is the firstline examination in the imaging assessment of the symptomatic shoulder. It allows, as in our work, a better morphological analysis of tendon rotator cuff.


OBJECTIF: Décrire les aspects échographiques de la rupture de la coiffe des rotateurs en précisant l'apport de cette technique dans le bilan d'exploration de l'épaule. PATIENTS ET MÉTHODE: Nous avons mené une étude prospective à visée analytique sur six mois allant du 1er janvier 2014 au 31 mai 2014 portant sur la rupture de la coiffe des rotateurs de l'épaule dans le service de radiologie du centre hospitalier de Béthune. Les examens échographiques ont été réalisés à l'aide d'un appareil Toshiba Aplion300 en utilisant deux sondes linéaires de 13et 15 Mhz. Le traitement des données a été effectué avec le logiciel SPSS 17.0. Le test de Khi2 a été utilisé pour la comparaison de données avec un seuil significatif pour p < 0,05. RÉSULTATS: Notre travail a porté sur 28 patients qui présentaient une rupture de coiffe lors de l'examen échographique. La tranche d'âge comprise entre 50 -59 ans était la plus représentée soit 32.1%.L'échographie retrouvait une tendinopathie calcifiante de la coiffe des rotateurs dans 46.4% des cas. Les ruptures de coiffe des rotateurs siégeaient sur les tendons supra épineux, infra épineux et subscapulaire dans respectivement 96,4% (27 cas), 32% (9 cas) et 21,4% (6 cas).Dans 58.3% on retrouvait une rupture transfixiante du supraépineux avec 72.3% de ruptures non transfixiantes. Sept patients présentaient une rétraction du tendon supraépineux dont 6 cas de rétraction stade 1 et 5 cas de rétraction stade 2.L'infra épineux était le second tendon de la coiffe atteint avec 9 cas (32%) suivi du subscapulaire 6 cas (21,4%).Nous n'avons pas enregistré de lésions (rupture ou calcifications) du Teres minor. La radiographie était normale chez 7 patients soit 32%. CONCLUSION: L'échographie, couplée à la radiographie standard, constitue l'examen de première intention dans le bilan d'imagerie de l'épaule symptomatique. Elle permet comme dans notre travail, une meilleure analyse morphologique des tendons de la coiffe des rotateurs.

19.
Mali Med ; 34(1): 30-34, 2019.
Artigo em Francês | MEDLINE | ID: mdl-35897247

RESUMO

Impact of the prescription and delivery of benzodiazepines in the occurrence of addictions in the district of Mbour. INTRODUCTION: Benzodiazepines (BZD) are widely used nowadays and are at the origin of an addiction. OBJECTIVES: The objective was to evaluate the quality of benzodiazepine prescribing and delivery in the Mbour department of Senegal and subsequently to implement an addictovigilance strategy. Thus, we studied the prescribing habits, the quality of delivery and identified the consumption habits of these drugs. MATERIALS AND METHODS: It was a cross-sectional, prospective study with two questionnaires: addressed to patients and prescribers, conducted in pharmacies, hospitals, districts and Mbour health posts. RESULTS: 44% of BZD prescriptions were prescribed by doctors and especially general practitioner. 31.1% did not comply with the rules of prescription (marketing authorization). As for the dispensing rules, (85.3%) were dispensed without a prescription. The level of consumption was high in the 30-40 age group (43.95%) predominantly female (59%). Insomnia predominated as a reason for prescription (16.4%) on anxiety (11.94%) with (65.5%) dependence. CONCLUSION: The abuses observed in the prescription, the delivery and consumption of BZD, constitutes a real health problem. Half of the consumers become addicted, hence the need for a national addictovigilance program.


INTRODUCTION: Les benzodiazépines (BZD) sont très utilisées de nos jours et sont à l'origine d'une addiction. OBJECTIFS: L'objectif était d'évaluer la qualité de la prescription et de la délivrance des benzodiazépines dans le département de Mbour au Sénégal et ultérieurement mettre en place une stratégie d'addictovigilance. Ainsi, nous avons étudié les habitudes de prescription, la qualité de délivrance et identifié les habitudes de consommation de ces médicaments. MATÉRIELS ET MÉTHODES: Il s'agissait d'une étude transversale, prospective avec deux questionnaires : adressé aux patients et prescripteurs, menée dans des pharmacies, hôpital, district et postes de santé de Mbour. RÉSULTATS: 44% des ordonnances de BZD étaient prescrites par des médecins et particulièrement des généralistes. 31,1% ne respectaient pas les règles de prescriptions (hors AMM). Quant aux règles de délivrance, 85,3% étaient délivrées sans ordonnance. Le niveau de consommation était élevé dans la tranche d'âge 30-40 ans (43,95%) avec une prédominance féminine (59%). L'insomnie prédominait comme motif de prescription (16,4%) sur l'anxiété (11,94%) avec (65,5%) de dépendance. CONCLUSION: Les abus observés dans la prescription, la délivrance et la consommation des BZD, constitue un véritable problème de santé. La moitié des consommateurs deviennent addictes, d'où la nécessité de mettre en place un programme d'addictovigilance à l'échelon national.

20.
Mali Med ; 34(1): 48-52, 2019.
Artigo em Francês | MEDLINE | ID: mdl-35897256

RESUMO

Envenomation by snakebite remains a public health problem in Africa. The purpose of our work was to study the acute complications of snakebite envenomation and the risk factors for its complications. METHOD: This was a retrospective and prospective study over a period of 07 years, which was performed in the department of anesthesia resuscitation and emergencies of CHU-Mother Child "Luxembourg" of Bamako. RESULTS: During this period, 76 cases of Ophidian envenomation were recorded. The average age of the patients was 34 ± 12 years old. . The family of vipers (Echis and Bitis) was the most incriminated 84,61% of the cases. Hemorrhagic complications were observed in 78.94% of patients, other complications (cardiovascular, neurological, dermatological, ophthalmological ...) were observed in 21.05% of patients. The main risk factor for complication observed was the delay in management (> 6 hours delay) in 100% of patients. The absence of serotherapy and or the initial resort to traditional treatment have been complicating risk factors. Almost all victims of Elapidae bites, 89.9% (5/6 cases) died. Serotherapy was performed urgently in 97.4% of cases. The morbidity in our study was 10.52% with a 7.8% mortality. CONCLUSION: in our context, the management of envenomations by snake bite remains dependent on a multitude of complications. The prognosis is conditioned by the early administration of symptomatic treatment and a specific antidote.


L'envenimation par morsure de serpent reste un problème de santé publique en Afrique. Notre travail avait pour objectif d'étudier les complications aigues de l'envenimation par morsure de serpent, ainsi que les facteurs de risque de ses complications. MÉTHODE: Il s'agissait d'une étude rétrospective et prospective sur une période de 07 ans, qui a été réalisée dans le département d'anesthésie réanimation et des urgences du CHU-Mère enfant le « Luxembourg ¼ de Bamako. RÉSULTATS: Durant cette période, 76 cas d'envenimations ophidiennes ont été enregistrés. L'âge moyen des patients était de 34±12 ans. . La famille des vipéridés (Echis et Bitis) était la plus incriminée 84,61% des cas. Les complications hémorragiques ont été observées chez 78,94% des patients, d'autres complications (cardiovasculaire, neurologique, dermatologique, ophtalmologique...) ont été observées chez 21,05% des patients. Le principal facteur de risque de survenu de complication observé, était le retard de prise en charge (délai> 6heures) Chez 100% des patients. L'absence de la sérothérapie et ou le recours initial à un traitement traditionnel ont été des facteurs de risques de complication. La presque totalité des victimes par morsures d'Elapidés soit 89,9% (5/6 cas) sont décédées. La sérothérapie a été effectuée en urgence chez 97,4% des cas. La morbidité dans notre étude a été de 10,52% avec une mortalité à 7,8%. CONCLUSION: dans notre contexte, la prise en charge des envenimations par morsure de serpent reste tributaire d'une multitude de complications. Le pronostic est conditionné par l'administration précoce d'un traitement symptomatique et d'un antidote spécifique.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...