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Superior Mesenteric Arterial Embolism Associated with an Acute Limb Ischemia: A Case Report and Literature Review  [PDF]
Abdesslam Bouassria, Elbachir Benjelloun, Imane Kamaoui, Hicham Elbouhaddouti, Ouadii Mouaqit, Abdelmalek Ousadden, Khalid Mazaz, Khalid Ait Taleb, Laila Sedreddine, Mohammed El Abkari, SidiAdil Ibrahimi, Ihssane Mellouki
Open Journal of Gastroenterology (OJGas) , 2014, DOI: 10.4236/ojgas.2014.44027
Abstract: Introduction: Acute mesenteric ischemia due to an embolism of the superior mesenteric artery (SMA) is associated with a high mortality rate. Over twenty per cent of acute mesenteric embolism cases consist of multiple emboli. Case Presentation: We present a rare case of a 62-year-old man admitted with acute abdominal pain and signs of intestinal occlusion related to an acute mesenteric ischemia due to superior mesenteric arterial embolism. It was associated with a synchronous acute bilateral lower limb ischemia due to embolic arterial occlusion. He underwent an emergency explorative laparotomy with proximal jejunal resection, and the patient made an excellent recovery. As for the acute limb ischemia, it was treated by efficient anticoagulation allowing limb salvage. Conclusion: When treating a superior mesenteric arterial embolism, the possibility of recurrent or multiple arterial thromboembolic events should be considered. A prompt diagnosis, aggressive surgical treatment and intensive care could improve the prognosis.
Support Recovery for the Drift Coefficient of High-Dimensional Diffusions
Jose Bento,Morteza Ibrahimi
Computer Science , 2013,
Abstract: Consider the problem of learning the drift coefficient of a $p$-dimensional stochastic differential equation from a sample path of length $T$. We assume that the drift is parametrized by a high-dimensional vector, and study the support recovery problem when both $p$ and $T$ can tend to infinity. In particular, we prove a general lower bound on the sample-complexity $T$ by using a characterization of mutual information as a time integral of conditional variance, due to Kadota, Zakai, and Ziv. For linear stochastic differential equations, the drift coefficient is parametrized by a $p\times p$ matrix which describes which degrees of freedom interact under the dynamics. In this case, we analyze a $\ell_1$-regularized least squares estimator and prove an upper bound on $T$ that nearly matches the lower bound on specific classes of sparse matrices.
Hbs antigen, what prevalence among pregnant women in Morocco? Preliminary results of a prospective study conducted in Hospital University Hassan II, Fez  [PDF]
Laila Sedreddine, Meryem Sekkat, Sidi Adil Ibrahimi, Noureddine Aqodad
Open Journal of Gastroenterology (OJGas) , 2013, DOI: 10.4236/ojgas.2013.37054

The chronic viral hepatitis B is a public health problem and remains a global challenge with 350 million carriers of HBs antigen (HBsAg). The prevalence of HBsAg varies from one country or continent to another. In France, it is estimated to be 0.5%. In Morocco, the data are rare but some studies have estimated the prevalence to be 2.5%. Our aim is to estimate the prevalence of HBsAg among women who have recently given birth at the maternity CHU Hassan II of Morocco Fez, and to describe the epidemiological profile and risk factors for infection. In pregnancy, infection with hepatitis B virus (HBV) is dominated by the risk of mother to child transmission (vertical transmission), which can be avoided by serovaccination of the newborn. The search for HBsAg should be performed in all pregnant women.


The Total Hip Arthroplasty in Ankylosing Spondylitis  [PDF]
Hatim Abid, Mohammed Shimi, Abdelhalim El Ibrahimi, Abdelmajid El Mrini
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.45020
Abstract: Objectives: The assessment of the radio clinical results of sixty one total hip arthroplasties was performed among young and active patients, with follow-up for ankylosing spondylitis, in order to evaluate the effect of surgery on the quality of life of these patients. Methods: For the functional improvement of the patients, we relied on the scores of Devane, Harris and that of Postel Merle d’Aubeigné. The radiological analysis was based on the coxometry. Results: The study confirms the notable functional gain and consequently the improvement of the quality of life of the patients. However, the longevity of the implants remains difficult to envisage due to our limited and insufficient hindsight. Conclusion: The total hip arthroplasty transforms the life of the young patients’ carriers of the disabling coxitis on the stiffening spondylarthritis, by getting them the laziness and the mobility wished for.

Results of the Sauvé-Kapandji Procedure for Posttraumatic Disorders of the Distal Radioulnar Joint in Young Patients  [PDF]
Hatim Abid, Mohammed Shimi, Abdelhalim El Ibrahimi, Abdelmajid El Mrini
Open Journal of Orthopedics (OJO) , 2015, DOI: 10.4236/ojo.2015.53005
Abstract: The authors report their experience with the Sauvé-Kapandji procedure for the management of posttraumatic disorders of the distal radioulnar joint in 9 younger and active patients. The mean age of our series was 37 years. We operated patients for whom pain in the distal radioulnar joint was more relieved by usual analgesic medical treatment, and those with a limitation of wrist movements. Until the latest follow-up, patients have benefited from antero-posterior and profile radiographs of the wrist. Functional assessment was based on the Modified Mayo Wrist Score whose average value was around 77 points. Postoperatively all patients experienced relief of pain. Rotation of the forearm increased to near normal values. On a professional level, eight of nine employed patients had returned to work. There were no major complications.
Experimental and Modeling Investigation of Shallow Water Table Fluctuations in Relation to Reverse Wieringermeer Effect  [PDF]
Ibrahimi Mohamed Khaled, Miyazaki Tsuyoshi, Nishikawa Kohei, Nishimura Taku, Imoto Hiromi
Open Journal of Soil Science (OJSS) , 2011, DOI: 10.4236/ojss.2011.12003
Abstract: Soil column experiments and modeling investigations were performed to study the behavior of shallow water table in response to various recharge events. Hence, shallow water table fluctuations inside sandy (Toyoura sand) and clayey (Chiba light clay) soil columns in response to surface and sub-surface recharge events were investigated under laboratory conditions. Experimental results showed that small application of water could raise the shallow water table level more than 100 times in depth in the case of Toyoura sand and more than 50 times in the case of Chiba LiC, reflecting a reverse Wieringermeer effect (RWE) response type of groundwater. This rise was associated with a prompt change of pressure head values which exhibited instantaneous fluctuations of centimeters due to the addition of millimeters of water. The recharge volumes leading to such disproportionate water table rise were successfully estimated using a simple analytical model based on the moisture retention curve of the soil and considering the hysteresis effect on soil water dynamics within the capillary fringe zone.
Young patient with juvenile polyposis syndrome: A case report  [PDF]
Mounia El Yousfi, Bahija Benyachou, Adil Ibrahimi, Laila Chbani, Afaf Amarti
Open Journal of Gastroenterology (OJGas) , 2012, DOI: 10.4236/ojgas.2012.23022
Abstract: A case is reported here of juvenile polyposis in a 15- year-old girl. She was diagnosed upon the assessment of the dysenteric syndrome. Coloscopy and gastro- scopy had shown polyps of variable size whose histological study confirmed the hamartomatous character typical of the youthful non adenomatous polyps free of dysplasia. There was no localization in the small bowel. Coloprotectomy with ileoanal anastomosis was carried out in view of the importance of diarrhoea and the impacts on the general state of health.
The endoscopic pneumatic balloon dilation in treating achalasia in a Moroccan center  [PDF]
Mounia El Yousfi, Nada Lahmidani, Adil Ibrahimi, Dafr-Allah Benajah
Open Journal of Gastroenterology (OJGas) , 2012, DOI: 10.4236/ojgas.2012.24033
Abstract: Aim of the work: Achalasia is a rare pathology whose physiopathogenesis is mysterious. The treatment is based on endoscopic pneumatic dilation (PD) and surgery. The aim of our work is to show our experiment about endoscopic pneumatic dilation as the principal treatment suggested for patients presenting achalasia. Material and method: It is a retrospective study relating 21 cases of achalasia indexed between 2002 and 2007. The remission was judged on Eckardt’s clinical criteria. If the symptoms persist after three episodes of PD, there’s a therapy failure and the patients were then proposed to surgery or recurrent DP. The results: The Middle Age at the time of diagnosis was of 44 ± 10, 66 years (20 to 76). The sex ratio was 1, 3 (12M?9F) (p = 0.5). The diagnosis of achalasia is based on imaging, endoscopy and manometric arguments. The PD of the cardia was proposed in first intention, except two patients who were treated 6 and 15 years before by surgery. 38 dilations were performed for 21 patients with an average of 1.8 PD per patient [1-6]. The rate of good answers after the third episode of PD was about 90.47% (19 patients). There was no complication of the PD. In plain-varied analysis, no predictive factor of good answers to PD was retained. Conclusion: PD is an effective cure with a negligible morbidity and no mortality. The surgery is reserved for the failures of pneumatic dilation.
The association of Crohn’s disease with celiac disease  [PDF]
Iliass Charif, Mohamed El Abkari, Adil Ibrahimi, Mounia El Yousfi, Mounia El Yousfi
Open Journal of Gastroenterology (OJGas) , 2012, DOI: 10.4236/ojgas.2012.24036
Abstract: We report two cases of a man and a woman whose association of Crohn’s disease (CRD) and celiac disease (CD) was evident and significant. The characteristic of our patients was the young age of discovery, and the localization of the CRD which was different in the two cases: colic localization in the woman and ileal stenosing in the man. The diagnosis of MCO was confirmed by the histological study of the jejunal biopsies in both cases and by serologies (anti-gliadines Antibody) in one case. Through these two observations, we insist on the singularity of the association of the celiac disease to the Crohn’s disease and on the complex etiopathogenesis of CRD which could have common points with that of CD. This fact can help us to understand more the two diseases and thereafter master their management.
C- versus O-Arylation of an Enol-Lactone Using Potassium tert-butoxide
Sanae Ibrahimi,Gilles Sauvé,El Moktar Essassi
International Journal of Molecular Sciences , 2003, DOI: 10.3390/i4060371
Abstract: The use of potassium tert-butoxide as the base in arylation reactions of an enollactone with a series of benzyl halides was explored. Our work demonstrates that the ratio of C-arylation to O-arylation varies with the substitution pattern of the aryl halide.
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