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INTRODUCTION: toutes les sténoses symptomatiques de l'ésophage peuvent être dilatées par voie endoscopique. Nous évaluons l'apport des moyens endoscopiques dans la prise en charge de la dilatation ésophagienne pour sténose caustique de l'ésophage (SCO) au Mali. METHODES: il s'agissait d'une étude descriptive et prospective réalisée dans le service de chirurgie thoracique à l'hôpital du Mali. Au total 46 dossiers cliniques de patients on été enregistrés et subdivisés en 4 groupes en fonction de la topographie des lésions cicatricielles. Le nombre de cas d'assistance endoscopique réalisé a été déterminé afin de comprendre l'apport des moyens endoscopiques dans le succès de la dilatation des SCO. Pour les 2 différentes méthodes de dilatation utilisées, le résultat du traitement et le coût ont comparés.RESULTATS: la FOGD a été utilisée dans 19 cas (41.30%) de dilatation avec la bougie de Savary Guillard et dans 47.82% des cas dans la dilatation de Lerut. La vidéo-laryngoscopie a été utilisé 58.69% des cas de dilatation à la bougie de Lerut. Le passage de guide métallique et / ou de fil-guide a été réalisée dans 39.13% avec la vidéo laryngoscopie et dans 58.68% avec la FOGD. Dans la comparaison des deux méthodes, il existe une différence significative dans la survenue des complications (p=0.04075), l'anesthésie générale (p=0.02287), l'accessibilité à la méthode (p=0.04805) et la mortalité (p=0.00402). CONCLUSION: la SCO est une pathologie grave et sous évaluée au Mali. Les moyens endoscopiques contribuent considérablement au succès de la dilatation �sophagienne pour sténose caustique dans les différentes méthodes utilisées.

To detect visible light cooperative targets during UAV landing, we use a time relay to encode the intensity of lamps. The change pattern of the lamps intensity is presented in this paper. The frames with strong and weak lamps light are called strong frames weak frames respectively. In continuous sequence images, we take weak frames as background and subtract background using strong fames. The geometric transformations are considered when subtracting background and a float threshold value are used to threshold the difference images. We also design several geometric constraints to eliminate interference points. The approaches to find the first weak frames and to track lamps in a sequence images are also presented. The experiments show that our method is robust to scale change, interference points and moving object in background.

Introduction: The aim of this work was to present the contribution of the endoscopy in the management of esophageal dilatation for caustic esophageal stenosis (CES). Methods: This was a descriptive and prospective study in the thoracic surgery department at the Hospital of Mali. A total of 46 cases of CES is recorded and divided into 4 groups according to the topography of the esophageal lesions. For the different methods of dilatation the number of performed endoscopic support was determined to understand the contribution of endoscopic means in the success of dilatation for CES. The outcome, complications and mortality in the two methods were compared. Results: Fibroscopy was used in 41.30% of patients with Savary Guillard dilators and in 47.82% of patients with Lerut dilators. Video laryngoscopy was used in 58.69% of patients who underwent dilatation with Lerut dilators. The passage of the guide wire was performed in 39.13% under video laryngoscopy and 58.68% under fibroscopy. In comparison of the two methods, there is a significant difference in the occurrence of complications (p = 0.04075), general anesthesia (p = 0.02287), accessibility (p = 0.04805) and mortality (p = 0.00402). Conclusion: The CES is a serious disease and under evaluated in Mali. The endoscopies contribute significantly to the success of esophageal dilatation for caustic stenosis in the different methods we used. [ABSTRACT FROM AUTHOR]

Esophageal foreign bodies are a frequent reason for consultation in the Pediatric Emergency Department. However, they can occur at all ages. This study aims to highlight the clinical, paraclinical and therapeutic features of esophageal foreign bodies management at the Hospital in Mali. We conducted a prospective study of all cases of ingestion of foreign bodies between January 2011 and December 2014. A total of 36 patients underwent endoscopic or surgical treatment. The average age was 6 years (with a range from 14 months to 62 years). They mainly affected male patients with a sex ratio of 1.75. Foreign bodies were blocked in the cricopharyngeal shrinkage in 69.45% of cases, 22.22% of whom had subsequent aortic shrinkage. The average time of foreign body removal was 7.30 hours. Rigid fibroscopy allowed the removal of the foreign body in 88.89% of cases. Thoracotomy allowed the removal of the foreign body in 5.55%. Esophageal foreign bodies can occur at all ages but they are more frequent among children. Endoscopic removal is the gold standard treatment but surgical removal of a blocked esophageal foreign body, although rare, is the last resort, due to the nature of the foreign body and to the occurrence of complications. The best way to reduce accidents is prevention.

Introduction: The aim of this work was to present the contribution of the endoscopy in the management of esophageal dilatation for caustic esophageal stenosis (CES)., Methods: This was a descriptive and prospective study in the thoracic surgery department at the Hospital of Mali. A total of 46 cases of CES is recorded and divided into 4 groups according to the topography of the esophageal lesions. For the different methods of dilatation the number of performed endoscopic support was determined to understand the contribution of endoscopic means in the success of dilatation for CES. The outcome, complications and mortality in the two methods were compared., Results: Fibroscopy was used in 41.30% of patients with Savary Guillard dilators and in 47.82% of patients with Lerut dilators. Video laryngoscopy was used in 58.69% of patients who underwent dilatation with Lerut dilators. The passage of the guide wire was performed in 39.13% under video laryngoscopy and 58.68% under fibroscopy. In comparison of the two methods, there is a significant difference in the occurrence of complications (p=0.04075), general anesthesia (p=0.02287), accessibility (p=0.04805) and mortality (p=0.00402)., Conclusion: The CES is a serious disease and under evaluated in Mali. The endoscopies contribute significantly to the success of esophageal dilatation for caustic stenosis in the different methods we used.