Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 4 )

2018 ( 53 )

2017 ( 40 )

2016 ( 41 )

Custom range...

Search Results: 1 - 10 of 6052 matches for " Samuel Takongmo "
All listed articles are free for downloading (OA Articles)
Page 1 /6052
Display every page Item
Endoscopic Third Ventriculostomy for Non-Tumor Obstructive Hydrocephalus in Children under Two Years of Age  [PDF]
Aurélien Ndoumbé, Mathieu Motah, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2015, DOI: 10.4236/ojmn.2015.53017
Abstract: The goal of this work is to report on the efficacy of endoscopic third ventriculostomy (ETV) for non-tumor obstructive hydrocephalus in children aged two years and below. In the period between June 2007 and December 2014, we had performed ETV in 30 patients with hydrocephalus from diverse etiologies. Among them were eight children aged two years or below. Clinical, radiological and outcome data of these children were retrospectively reviewed to assess ETV efficiency in this age group. Eight children (6 boys, 2 girls) with age range from 6 to 24 months (mean 12.5 months, median 15 months) suffering from non-tumor obstructive hydrocephalus underwent ETV as primary treatment. Seven patients (87.5%) were under two years and 3 had less than one year of age at the time of surgery. Macro crania, suture diastasis, scalp vein bulging and sunset gaze were the most common findings on physical examination. Computed tomography scanning was done in all patients but none had magnetic resonance imaging. Hydrocephalus was due to primary (congenital) aqueductal stenosis in all cases and was associated with myelomeningocele in one. ETV was successful in 7 (87.50%) cases but failed in one. Operation time varied from 28 to 35 minutes (mean 31.12 minutes, median 31.5 minutes). No intraoperative complication occurred. The child in whom ETV failed had postoperative CSF leak. No death related to procedure occurred. Hospital stay ranged from 2 to 4 days (mean, 2.87 days, median, 3 days). Follow up range was 5.5 to 86 months (0.46 to 7.16 years); mean, 59.14 months (4.92 years); median, 45.75 months (3.81 years).
Tumor Obstructive Hydrocephalus Treated with Endoscopic Third Ventriculostomy in Cameroon  [PDF]
Aurélien Ndoumbé, Mathieu Motah, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2015, DOI: 10.4236/ojmn.2015.53016
Abstract: The goal of this work was to report on a series of preoperative endoscopic third ventriculostomy (ETV) performed for obstructive hydrocephalus due to posterior fossa tumors. Eight patients underwent preoperative ETV prior to tumor biopsy or removal for obstructive hydrocephalus related to posterior fossa tumors. All patients underwent surgery in two steps; ETV followed a week later by tumor resection. Clinical, radiological and outcome data were retrospectively reviewed. Eight patients (6 males, 2 females) aged between 8 and 45 years (mean age 24.62 years) suffering from obstructive hydrocephalus due to posterior fossa tumors had ETV prior to tumor removal or biopsy. Five patients were adults while 3 were under 18 years. All patients complained of headaches, seven presented with symptoms of raised intracranial pressure or visual disturbances and four had vomiting or cerebellar disturbance. Computed tomography scan was done in all patients and magnetic resonance imaging in five. Complete tumor removal was achieved in 4 cases and partial removal or biopsy in the remaining 4. ETV was successful in 7 (87.50%) cases but failed in one. Two patients experienced intraoperative transitory bradycardia. Two postoperative complications occurred (one meningitis and one CSF leak). No death related to procedures occurred. The histological diagnosis were as follows: ependymoma (3), medulloblastoma (3), astrocytoma grade II (1) and pineoblastoma (1). Hospital stay ranged from 9 to 21 days (mean, 12.71 days). Follow up range was 4 months to 78.4 months (0.33 to 6.53 years; mean, 46.11 months (3.84 years); median, 41.2 months (3.43 years).
An Intragaleal Frontal Dermoid Cyst: A Location Never Reported  [PDF]
Aurélien Ndoumbe, Blaise Nkegoum, Mathieu Motah, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2014, DOI: 10.4236/ojmn.2014.43021

All dermoid cysts arising at the cranial vault had been reported as being located subgaleally, i.e. under the galea aponeurotica or epicranium. We are presenting a case that we believe to be the first case of an intragaleal dermoid cyst ever reported. An eighteen years old girl presented at our consultation for a midline frontal swelling evolving since 2 years. Neurological examination was normal. The Computed Tomography (CT) scan showed a round shaped heterogeneous mass at the vertex with no intracranial extension. The lesion was excised surgically. It appeared to be located intragaleally (within the epicranium) and composed of hairs and liquefied fat evocative of a dermoid cyst. The diagnosis of dermoid cyst was confirmed on histology. Postoperative outcome was excellent and the patient is symptom-free 16 months after surgery.

Thoracic Spinal Cord Stab Injury: A Case Report and Literature Review  [PDF]
Aurélien Ndoumbe, Marc Leroy Guifo, Mathieu Motah, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2015, DOI: 10.4236/ojmn.2015.54019
Abstract: Thoracic spinal cord stab injuries are rare lesions. A 17-year-old boy was stabbed on his back by his classmate when he bent forward to pick up his cloth from the ground. On admission, he presented with: complete paraplegia with muscle strength of zero on all muscle groups, complete anesthesia from dermatome 10 and below, acute urinary retention, and a four-centimeter wound on the thoracolumbar region from which cerebrospinal fluid mixed with blood was oozing out. A high-dose methylprednisolone protocol was started (30 mg/kg in one hour and then 5.4 mg/kg over 23 hours) an indwelling urinary catheter placed and sterile dressing of the wound done. Antibiotics and analgesics were also administered. The computed tomography scanning revealed a spinal cord transection at T10-T11 level with incarceration of the broken knife blade. An emergency thoracic laminectomy was performed. Removal of the broken knife blade revealed complete spinal cord transection with a compressive hematoma within the spinal cord which was removed by smooth suction. The spinal dura was sutured and the wound closed in many layers. On day 14 after surgery, sensitivity was recovered with 3 on 5 muscle strength in both lower limbs except for both feet where motor function remained null. Urinary retention and fecal incontinence persisted. The patient was discharged from our service for a rehabilitation center. At 32-month follow-up, neurological examination was unchanged although patient noticed a slight improvement of sphincter disturbances.
Epidemiological Analysis of Surgically Treated Acute Traumatic Epidural Hematoma  [PDF]
Aurelien Ndoumbe, Martine Virginie Patience Ekeme, Bonaventure Jemea, Chantal Simeu, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2016, DOI: 10.4236/ojmn.2016.63016
Abstract: This study is a retrospective analysis of demographic, clinical, radiological and outcome data of surgically treated acute traumatic epidural hematomas. Forty-six consecutive cases of epidural hematomas were operated at the University Hospital Center of Yaoundé, Cameroon, between February 2006 and December 2013. The mean age was 29.56 years and63.04% of patients were between 21 and 30 years. Almost 94% of patients were males. Thirty-five percent of patients were motorcycle riders. Road traffic accident was the cause in 70% of cases. Mean time between head trauma and surgical evacuation was 78 hours. Head trauma was moderate in 52.17%. Initial loss of consciousness was found in 78.26% and lucid interval in 65.23%. Seventy-four percent of patients had signs of intracranial hypertension on admission, 35% had at least one neurologic focal sign and 50% had a scalp wound. Eight patients (17.39%) presented with unilateral or bilateral mydriasis. On computed tomography, the hematoma was on the left side in 60.86% of patients and frontal-parietal location was the most frequent. Computed tomography showed mass effect in 97.82% of patients. The most frequent surgical procedure was craniotomy. Six (13.04%) patients died, but 82.60% recovered fully (GOS 5). In Cameroon, traumatic acute epidural hematoma affects primarily healthy young men in their twenties and thirties. Road traffic accidents are the main etiology. Most patients had moderate head trauma and presented with intracranial hypertension. Early surgery is rarely done. Nevertheless, even with delayed surgery, most patients have good outcome.
Epidemiological Analysis of 135 Cases of Severe Traumatic Brain Injury Managed at a Surgical Intensive Care Unit  [PDF]
Aurélien Ndoumbe, Paul Boris Ngoyong Edu, Chantal Simeu, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2018, DOI: 10.4236/ojmn.2018.81010
Abstract: This study was a retrospective analysis of the epidemiologic profile of severe traumatic brain injuries managed at the surgical intensive care unit of the University Hospital Center of Yaoundé, Cameroon, between January 2011 and December 2015. All the patients admitted at the surgical intensive care unit for a traumatic brain injury with an initial Glasgow coma scale score ≤ 8 were included. One hundred and thirty-five cases were enrolled. One hundred and fourteen were males and 21 were females. Their mean age was 32.75 years. Forty-four patients were aged between 16 to 30 years. Road traffic accidents represented the first mode of injury with 101 cases and most of the patients were pedestrians hit by a car. Pupils and students were the most involved. Twenty-three patients had additional extracranial injury. On admission, 97 (71.85%) patients had GCS 7-8. A brain CT scan was done for 115 patients. Intracranial and intracerebral hemorrhages were the most frequent radiological findings with 57 cases. The overall mortality was 32.59% with 44 deaths. Thirty-two of the deaths occurred in patients with GCS 7 - 8 on admission. Ninety-one (67.40%) patients survived, 74 (54.81%) had persisting disabilities, while only 17 (12.59%) recovered fully. The following factors had an impact on the outcome: GCS at admission, pupillary anomalies, length of hospital stay, endotracheal intubation and surgery. Severe TBI remains a heavy socio-economic burden worldwide. In Cameroon where the health system is poorly organized, the outcome of individuals who sustained a severe TBI was dismal.
Outcome of Surgically Treated Acute Traumatic Epidural Hematomas Based on the Glasgow Coma Scale  [PDF]
Aurélien Ndoumbe, Martine Virginie Patience Ekeme, Chantal Simeu, Samuel Takongmo
Open Journal of Modern Neurosurgery (OJMN) , 2018, DOI: 10.4236/ojmn.2018.81009
Abstract: This study was a retrospective analysis of outcome of surgically treated acute traumatic epidural hematomas based on the Glasgow coma scale. The series enrolled forty-six consecutive cases of acute traumatic epidural hematomas. The mean age of patients was 29.56 years and 63.04% of the patients were between 21 and 30 years of age. Forty-tree out of 46 (93.47%) of the patients were males. Road traffic crash was the main mode of injury. The severity of the traumatic brain injury was classified according to the Glasgow coma scale score at admission. The injury was mild or moderate in 35 (76.08%) cases and severe in 11. Eight patients (17.39%) presented with pupillary abnormalities. The computed tomography scanning of the head has objectivized the epidural hematoma in all patients and has shown a mass effect with midline shift in all but one case (45/46). The most frequent surgical procedure done was craniotomy. Six (13.04%) patients died (GOS 1), but 38 (82.60%) recovered fully (GOS 5) and two (04.34%) were disabled but independent (GOS 4). The Glasgow coma score at admission was very predictive for good or poor outcome, since all patients but one who died and all survivors who were disabled were comatose at admission (GCS ≤ 8).
Abcès appendiculaires: analyse de 19 cas traités au Centre Hospitalier et Universitaire de Yaoundé et déductions pratiques
Guifo Marc Leroy,Takongmo Samuel,Chichom Alain,Pisoh Tagnyin Christopher
Pan African Medical Journal , 2010,
Abstract: INTRODUCTION: L’abcès appendiculaire représente 10% des cas d’appendicite aigue. Leur incidence accrue pourrait traduire des difficultés diagnostiques rencontrées en milieux défavorisés ou l’utilisation des examens morphologiques doit être pertinente lorsqu’ils sont disponibles. Le drainage par voie extrapéritonéale si possible suivit d’une appendicectomie à froid était considéré comme l’attitude thérapeutique indiquée. On observe en pratique une incidence faible des appendicectomies différées par rapport à la prévalence des cas d’abcès appendiculaires. METHODES: Le but de cette étude était d’évaluer de fa on critique la prise en charge des abcès appendiculaires au CHU de Yaoundé. Nous avons rétrospectivement analysé les dossiers de patients traités pour appendicite au CHU de Yaoundé de 2001 à 2006 et les données concernant l’age, le sexe, les découvertes opératoires, les gestes thérapeutiques étaient recueillis. RESULTATS: Dix-neuf cas d’abcès sur 200 cas d’appendicites ont été retrouvés. Dans deux cas seulement il n’y avait pas eu d’appendicectomie au cours de l’intervention soit 10%. On avait 10.5% de complications essentiellement des suppurations pariétales ; comparable à 6% pour les formes non évoluées. CONCLUSION: Nous en concluons qu’il est nécessaire de disposer d’un examen morphologique dans les appendicites évoluées avec des manifestations localisées et nous recommandons une prise en charge individualisée.
Investigating the Distribution of Selected Major and Trace Metals in Lithogenic Environment near Cement Factory, Mekelle, Ethiopia  [PDF]
Samuel Estifanos
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.52018

Sixteen physicochemical parameters including four major and ten trace metals were analyzed for seven top soil and six top stream sediment samples collected around the vicinity of cement factory in Mekelle, Ethiopia. Water and aqua regia extraction techniques were deployed to determine the water soluble and near total concentration of the metals in the samples. Water extraction results verified the magnitude of loading of the metals from anthropogenic sources. The mean values of the water soluble metals are found to exceed the reference values except for Ca and Zn in both lithogenic media indicating the severity of pollution. Spatial distribution of the metals suggested that cement factory dust and traffic emissions represent the most important pollutant sources for the investigated area.  The mean proportion of the major and trace metals in the water soluble phase of soil can be put on a descending order as: Mg (57.76%) > Fe > Ca > K > Na > Mn (3.77%) and Mo (53.17%) > Cu > Co > As > Ni > Zn > Pb

Assessing the Relative Efficiency of Health Systems in Sub-Saharan Africa Using Data Envelopment Analysis  [PDF]
Samuel Ambapour
American Journal of Operations Research (AJOR) , 2015, DOI: 10.4236/ajor.2015.51003
Abstract: We assess the relative efficiency of health systems of 35 countries in sub-Saharan Africa using Data Envelopment Analysis. This method allows us to evaluate the ability of each country to transform its sanitary “inputs” into health “outputs”. Our results show that, on average, the health systems of these countries have an efficiency score between 72% and 84% of their maximum level. We also note that education and density of population are factors that affect the efficiency of the health system in these countries.
Page 1 /6052
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.