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Search Results: 1 - 10 of 325914 matches for " Sékou Koumaré "
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Right Internal Jugular Vein Ectasia in African Woman: A Report of 2 Cases  [PDF]
Seydou Togo, Moussa Abdoulaye Ouattara, Sékou Koumaré, Mody Abdoulaye Camara, Sadio Yena
Surgical Science (SS) , 2015, DOI: 10.4236/ss.2015.610062
Abstract: Internal jugular vein (IJV) ectasia is a rare benign disease. It commonly presents as a unilateral, soft, compressible neck swelling that mostly involves the right side. It is usually a childhood disease and believed to be of congenital origin. Accurate diagnosis from careful history, physical examination and radiological study can be made. We report here two cases of IJV ectasia in African adults with right lateral neck mass dilating when increase intrathoracic pressure. Because of its rarity, this entity is frequently ignored or misdiagnosed. This case report intends to stress the importance of keeping IJV ectasia as differential diagnosis in mind in case of lateral neck swellings to avoid invasive investigations and inappropriate treatment. The asymptomatic case management of IJV ectasia is conservative with long-term surveillance.
Management for Pediatric Pleural Empyema in Resource-Poor Country: Is Chest Tube Drainage with Antiseptic Lavage-Irrigation Better than Tube Thoracostomy Alone?  [PDF]
Seydou Togo, Moussa Abdoulaye Ouattara, Ibrahim Sangaré, Jacque Saye, Cheik Amed Sékou Touré, Ibrahim Boubacar Maiga, Dokore Jerome Dakouo, Liang Guo, Sékou Koumaré, Adama Konoba Koita, Zimogo Zié Sanogo, Sadio Yéna
Surgical Science (SS) , 2015, DOI: 10.4236/ss.2015.612077
Abstract: Drainage by chest tube thoracostomy is widely used in treatment of early empyema thoracis in children, but drainage with antiseptic lavage-irrigation is more frequent in our context since the last 20 years. This study was to determine which was more effective in our experience comparing chest tube drainage with catheter antiseptic lavage-irrigation versus drainage by chest tube thoracostomy alone in the management of empyema thoracis in children. Patients and Methods: Demographic, clinical and microbiological data on children with thoracic empyema undergoing drainage by chest tube thoracostomy alone or with antiseptic lavage-irrigation were obtained from 2 thoracic surgical centers from September 2008 to December 2014. It was a retrospective study included 246 children (137 boys and 109 girls) who were managed for empyema thoracis at the author’s different department of surgery. Outcomes analysis with respect to treatment efficacy, hospital duration, chest tube duration, hospital costs, and need for subsequent procedures was analyzed and compared in the 2 groups. Results: Drainage of pus and antiseptic irrigation resulted in resolution of pyrexia with improvement in general condition in 85.82% of patients in group 1 and by tube thoracostomy alone in 73.95% in group 2. There are a significant difference in the length of hospital stay (p = 0.022), duration of chest tubes in situ (p = 0.040), treatment coast (p = 0.015) and outcome of stage 2 empyema disease (p = 0.037) between the 2 groups. Conclusion: it seems that chest tube drainage with antiseptic lavage-irrigation method is associated with a higher efficacy, shorter length of hospital stay, shorter duration of chest tube in situ, less cost and better outcome of stage 2 empyema diseases than a treatment strategy that utilizes chest tube thoracostomy alone.
A Rare Case of a Giant Cavernous Lymphangioma of the Chest Wall in a Child  [PDF]
Seydou Togo, Moussa Abdoulaye Ouattara, Ibrahim Boubacar Maiga, Yunping Lu, Donghui Jin, Ibrahim Sangaré, Maiga Abdoul Aziz, Cheik Amed Sekou Touré, Ibrahim Coulibaly, Jaques Saye, Cheik Sadibou, Sékou Koumaré, Sadio Yéna, Djibril Sangaré
Open Journal of Respiratory Diseases (OJRD) , 2016, DOI: 10.4236/ojrd.2016.61001
Abstract: Cavernous lymphangioma of the chest wall is a very rare disease entity, and only a few cases have ever been documented in the literature. Cases of recurrent cavernous lymphangioma after surgical excision of a cystic lymphangioma on the same side of the chest wall are quite uncommon. We report a case of a 10-year-old girl, with a giant cavernous lymphangioma of the left lateral chest wall extending into the axilla, who had undergone surgical excision of a cystic lymphangioma 9 years earlier.
Cervical Thoracic Necrotizing Fasciitis with the Mammary Gland Spread of Odontogenic Origin  [PDF]
Seydou Togo, Moussa Abdoulaye Ouattara, Jaques Saye, Ibrahim Boubacar Maiga, Cheick Ahmed Sékou Touré, Ibrahim Sankaré, M.A.C. Cissé, Nouhoum Diani, Sékou Koumaré, Moussa Camara, Adama Konoba Koita, Sadio Yéna, Zimogo Zié Sanogo, Djibril Sangaré
Surgical Science (SS) , 2016, DOI: 10.4236/ss.2016.74024
Abstract: Necrotizing fasciitis is an uncommon infection, but potentially lethal, especially when associated with systemic disorders such as diabetes. We report the case of a 35-year-old female with uncontrolled diabetes mellitus, presenting with edema of the neck, facial and left mammary gland, secondary to untreated dental infection, progressing to a full-blown necrotizing fasciitis in a short period of time with sepsis. The patient was managed with aggressive multidisciplinary medical and surgical treatment. Despite the technologic advances in diagnosis and treatment, complications still result with astounding high mortality. Clearly, the morbidity associated to this infection, even in diabetic patients, can be minimized if an early diagnosis and effective debridement are done.
Secondary Spontaneous Rupture of the Diaphragm in a Child after Blunt Chest Trauma  [PDF]
Seydou Togo, Bourama Kané, Moussa Abdoulaye Ouattara, Issa Boubacar Maiga, Yunping Lu, Donghui Jin, Allaye Ombotimbé, Ibrahim Sangaré, Maiga Abdoul Aziz, Cheik Amed Sekou Touré, Ibrahim Coulibaly, Adama Issa Koné, Sitan Illiassou, Jaques Saye, Cheik Sadibou Traoré, Sékou Koumaré, Moussa Camara, Koita Adama Kononba, Mody Traoré, Zimogo Zié Sanogo, Sadio Yéna, Djibril Sangaré
Open Journal of Respiratory Diseases (OJRD) , 2016, DOI: 10.4236/ojrd.2016.62006
Abstract: Traumatic diaphragmatic rupture (TDR) is very rare in the pediatric age group. Because of its rarity and its coexistence with more injuries, the diagnosis is often delayed. Very little has been written about this condition in the pediatric age group. TDR, while uncommon, should be considered in cases of blunt thoracic trauma. All patients should undergo meticulous examination preoperatively. The clinical presentation and importance of making an accurate diagnosis and surgery is highlighted. We report a case of secondary spontaneous traumatic left-sided diaphragmatic rupture in a child that was managed by delayed surgical repair.
Initial Experience with Open Heart Surgery in Sub-Saharan Africa: Challenges in Mali with Minimum Standards for Practice  [PDF]
Seydou Togo, Moussa Abdoulaye Ouattara, Abdoul Aziz Ma?ga, Moussa Bazongo, Issa Boubacar Ma?ga, Cheik Ahmed Sékou Touré, Ibrahim Coulibaly, Sounkalo Diop, Allaye Ombotimbe, Sitta Illiassou, Souleymane Coulibaly, Mamadou Solo Koita, Koumba Nelly Dora Ignanga, Sanibé Dramane Koné, Moussa Oscar Kamano, Fatoumata Konaté, Adama Issa Koné, Amadou Sidibé, Ahmadou Dramé, Nouhoum Oueloguem, Bourama Kané, Boubacar Dramé, Sékou Koumaré, Zimogo Zié Sanogo, Sadio Yéna
World Journal of Cardiovascular Surgery (WJCS) , 2019, DOI: 10.4236/wjcs.2019.99013
Abstract: Introduction: There has been limited experience with Open Heart Surgeries (OHS) in Sub-Saharan Africa. In west Africa especially in Mali, most fledgling centers are unable to overcome the myriad of challenges encountered in establishing OHS though there is a high prevalence of surgically correctable heart diseases. The aim of this paper is to review our initial experience of our first cases in developing OHS program and discuss the challenges and prospects that need to be overcome to further develop it. Methods: A total of 6 patients who underwent OHS during the first “cardiac mission” in July 2016 were included in this retrospective study. The medical records of the patients were examined and data on age, sex, diagnosis, EuroSCORE, type of surgery, cardiopulmonary bypass details, complications and length of hospital stay were extracted. Results: Six patients with a male to female ratio of 1, ages ranging between 12 and 35 years (mean of 22.5 ± 12 years) were studied. The mean of EuroSCORE was 6 ± 41. Pericardial patch closure of isolated atrial septal defect was performed in one patient. One patient had mitral valve repair for rheumatic mitral regurgitation consisting of chordal shortening with a tricuspid valvuloplasty. Three patients had mitral valve replacement with tricuspid valvuloplasty. Four patients had mitral valve replacement. Sixty-day mortality?was 0%. Conclusion: Safe conduct of open heart surgery in Mali Hospital setting is feasible. Grant financial aid is required for rapid growth of Open-Heart Surgery in this part of Sub-Saharan Africa.
Effects of the Chinese Innovation System on Regional Innovation Performance  [PDF]
Kou Kou
Technology and Investment (TI) , 2018, DOI: 10.4236/ti.2018.91003
Abstract: This paper presents the influence of innovation systems on regional innovation performance in China for the period 1998-2008. It places special emphasis on the effects of institutional factors, namely marketization level. The findings indicate that the innovation system contributes greatly to increasing the level of innovation. Among the factors of innovation systems, the openness of the region and government expenditure on education plays key roles. Market-oriented institutional arrangements also increase innovation performance.
Introduction to stochastic calculus applied to finance, by Damien Lamberton and Bernard Lapeyre
S. G. Kou
International Journal of Stochastic Analysis , 1998, DOI: 10.1155/s1048953398000094
From finite sample to asymptotics: A geometric bridge for selection criteria in spline regression
S. C. Kou
Mathematics , 2005, DOI: 10.1214/009053604000000841
Abstract: This paper studies, under the setting of spline regression, the connection between finite-sample properties of selection criteria and their asymptotic counterparts, focusing on bridging the gap between the two. We introduce a bias-variance decomposition of the prediction error, using which it is shown that in the asymptotics the bias term dominates the variability term, providing an explanation of the gap. A geometric exposition is provided for intuitive understanding. The theoretical and geometric results are illustrated through a numerical example.
Stochastic modeling in nanoscale biophysics: Subdiffusion within proteins
S. C. Kou
Statistics , 2008, DOI: 10.1214/07-AOAS149
Abstract: Advances in nanotechnology have allowed scientists to study biological processes on an unprecedented nanoscale molecule-by-molecule basis, opening the door to addressing many important biological problems. A phenomenon observed in recent nanoscale single-molecule biophysics experiments is subdiffusion, which largely departs from the classical Brownian diffusion theory. In this paper, by incorporating fractional Gaussian noise into the generalized Langevin equation, we formulate a model to describe subdiffusion. We conduct a detailed analysis of the model, including (i) a spectral analysis of the stochastic integro-differential equations introduced in the model and (ii) a microscopic derivation of the model from a system of interacting particles. In addition to its analytical tractability and clear physical underpinning, the model is capable of explaining data collected in fluorescence studies on single protein molecules. Excellent agreement between the model prediction and the single-molecule experimental data is seen.
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