ABSTRACT
OBJECTIVE: To assess the pertinence and the cost of preoperative examinations prescriptions by surgeons at CHU-YO for programmed surgery. PATIENTS AND METHODS: This was a prospective and observational study of 145 patients received in preanesthetic consultations between February 4 and April 4, 2016 in the department of anesthesiology, intensive care unit and emergency of CHU-YO. It consisted of an evaluation of 1106 preoperative examinations prescribed by the surgeons of this hospital compared to the formalized recommendations of French experts. RESULTS: Out of a total of 1,106 prescribed preoperative examinations, 1069 (96.6%) have been achieved. The six most commonly prescribed tests were hemogram (95.9%), blood grouping (90.3%), prothrombin (PT) (91.7%), active cephalin time (ACT) (86.9%), blood sugar (92.4%) and creatininemia (89%). Ninety-two results (8.6%) examinations were abnormal. Prescriptions for preoperative examinations were relevant in 30.2% of cases. The average cost of performing preoperative examinations per patient was 19832±14023 FCFA. CONCLUSION: Prescriptions for preoperative examinations by surgeons are mostly non-rational, the application of a repository is essential to improve this practice.
OBJECTIF: évaluer la pertinence et le coût de la prescription des examens préopératoires par les chirurgiens au centre hospitalier universitaire Yalgado Ouédraogo (CHU-YO) en chirurgie réglée. PATIENTS ET MÉTHODES: Il s'est agi d'une étude prospective observationnelle portant sur 145 patients reçus en consultation préanesthésique entre le 4 février et le 4 avril 2016 dans le service d'anesthésie-réanimation et d'urgences du CHU-YO. Elle a consisté en une évaluation de 1106 examens préopératoires prescrits par les chirurgiens de cet hôpital, par comparaison aux recommandations formalisées d'experts français. RÉSULTATS: Sur un total de 1106 examens préopératoires prescrits, 1069 (96,6%) ont été réalisés. Les six examens les plus fréquemment prescrits étaient l'hémogramme (95,9%), le groupage sanguin (90,3%), la détermination du taux de prothrombine (TP) (91,7%), le temps de céphaline activée (TCA) (86,9%), la glycémie (92,4%) et la créatininémie (89%). Quatre-vingt-douze résultats (8,6%) d'examens étaient anormaux. Les prescriptions d'examens préopératoires étaient pertinentes dans 30,2% des cas. Le coût moyen de réalisation des examens préopératoires par patient était de 19832 ± 14023 FCFA. CONCLUSION: Les prescriptions d'examens préopératoires par les chirurgiens sont majoritairement non rationnelles, l'application d'un référentiel y relatif est indispensable pour améliorer cette pratique.
ABSTRACT
During the long Sahelian dry season, mosquito vectors of malaria are expected to perish when no larval sites are available; yet, days after the first rains, mosquitoes reappear in large numbers. How these vectors persist over the 3-6-month long dry season has not been resolved, despite extensive research for over a century. Hypotheses for vector persistence include dry-season diapause (aestivation) and long-distance migration (LDM); both are facets of vector biology that have been highly controversial owing to lack of concrete evidence. Here we show that certain species persist by a form of aestivation, while others engage in LDM. Using time-series analyses, the seasonal cycles of Anopheles coluzzii, Anopheles gambiae sensu stricto (s.s.), and Anopheles arabiensis were estimated, and their effects were found to be significant, stable and highly species-specific. Contrary to all expectations, the most complex dynamics occurred during the dry season, when the density of A. coluzzii fluctuated markedly, peaking when migration would seem highly unlikely, whereas A. gambiae s.s. was undetected. The population growth of A. coluzzii followed the first rains closely, consistent with aestivation, whereas the growth phase of both A. gambiae s.s. and A. arabiensis lagged by two months. Such a delay is incompatible with local persistence, but fits LDM. Surviving the long dry season in situ allows A. coluzzii to predominate and form the primary force of malaria transmission. Our results reveal profound ecological divergence between A. coluzzii and A. gambiae s.s., whose standing as distinct species has been challenged, and suggest that climate is one of the selective pressures that led to their speciation. Incorporating vector dormancy and LDM is key to predicting shifts in the range of malaria due to global climate change, and to the elimination of malaria from Africa.
Subject(s)
Animal Migration/physiology , Anopheles/physiology , Estivation/physiology , Insect Vectors/physiology , Models, Biological , Seasons , Animals , Malaria/transmission , Population Density , Population Dynamics , Rain , Species SpecificityABSTRACT
Changes in spatial distribution of mosquitoes over time in a Sahelian village were studied to understand the sources of the mosquitoes during the dry season when no larval sites are found. At that time, the sources of Anopheles gambiae Giles may be local shelters used by aestivating mosquitoes or migrants from distant populations. The mosquito distribution was more aggregated during the dry season, when few houses had densities 7- to 24-fold higher than expected. The high-density houses during the dry season differed from those of the wet season. Most high-density houses during the dry season changed between years, yet their vicinity was rather stable. Scan statistics confirmed the presence of one or two adjacent hotspots in the dry season, usually found on one edge of the village. These hotspots shifted between the early and late dry season. During the wet season, the hotspots were relatively stable near the main larval site. The locations of the hotspots in the wet season and early and late dry season were similar between years. Season-specific, stable, and focal hotspots are inconsistent with the predictions based on the arrival of migrants from distant localities during the dry season, but are consistent with the predictions based on local shelters used by aestivating mosquitoes. Targeting hotspots in Sahelian villages for vector control may not be effective because the degree of aggregation is moderate, the hotspots are not easily predicted, and they are not the sources of the population. However, targeting the dry-season shelters may be highly cost-effective, once they can be identified and predicted.
Subject(s)
Anopheles/physiology , Estivation , Animals , Female , Housing , Humans , Male , Mali , Population Density , Population Dynamics , SeasonsABSTRACT
INTRODUCTION: Pain is a frequent reason of consultation in traumatological emergencies. Its management is characterized by oligoanalgesia whose causes are multiple. The purpose of this study is to assess the knowledge and practices of pain management by traumatological emergencies staff of the teaching hospital Yalgado Ouedraogo of Ouagadougou. MATERIALS AND METHODS: A questionnaire survey of health workers performing in traumatological emergencies has been conducted. Two different questionnaires, one for medical staff and one for the paramedics were administered. RESULTS: A total of 67 health workers participated in the study with a participation rate of 98% and 100%, respectively, for the medical and paramedical staff. According to their report, 65.3% of medical and 77.7% of paramedical staff had never received training on pain and its management. For 85.7% of physicians, pain should be assessed before treatment, but 79.6% of them didn't know any conventional pain assessment method. All the nurses and 40.8% of physicians felt that pain in the emergency services should not be treated immediately to prevent misdiagnosis. Morphine and regional anesthesia were not used for pain treatment in the emergency room. 10.2% of medical staff and 27.8% of the paramedics said that they systematically search for the analgesicsside effects. CONCLUSION: The knowledge of health workers about pain and its management is insufficient. The lack of training of health workers on the management of pain is the cause and contributes to explain the oligoanalgesia in this service.
INTRODUCTION: La douleur est un motif fréquent de consultation aux urgences traumatologiques. Sa prise en charge est caractérisée par une oligoanalgésie dont les causes sont multiples. Le but de cette étude est d'évaluer les connaissances et pratiques du personnel des urgences traumatologiques du Centre hospitalier universitaire Yalgado Ouédraogo de Ouagadougou sur la prise en charge de la douleur. MATÉRIEL ET MÉTHODE: Une enquête par questionnaire auprès du personnel de santé exerçant aux urgences traumatologiques a été menée. Deux questionnaires différents, l'un pour le personnel médical et l'autre pour le personnel paramédical ont été administrés. RÉSULTATS: Au total, 67 agents de santé ont participé à l'étude avec un taux de participation de 98% et 100% respectivement pour le personnel médical et paramédical. Selon leur déclaration, 65,3% du personnel médical et 77,7% du personnel paramédicaux n'avaient jamais bénéficié de formation sur la douleur et sa prise en charge. Pour 85,7% des médecins, la douleur devrait être évaluée avant traitement mais 79,6% d'entre eux ne connaissaient aucune méthode conventionnelle d'évaluation de la douleur. L'ensemble des infirmiers et 40,8% des médecins estimaient que la douleur aux urgences ne devrait pas être traitée d'emblée afin d'éviter des erreurs diagnostiques. La morphine et l'anesthésie locorégionale n'étaient pas utilisées aux urgences pour traiter la douleur. 10,2% du personnel médical et 27,8% du personnel paramédical ont affirmé rechercher systématiquement les effets secondaires des antalgiques. CONCLUSION: Les connaissances des agents de santé sur la douleur et sa prise en charge sont insuffisantes. L'absence de formation du personnel de santé en algologie en est la cause et contribue à expliquer l'oligoanalgésie observée dans ce service.
