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Biomedical subjects

A Ndiaye

Publications and source records attributed to A Ndiaye.

At least 37 records · Page 2Linked to original sources
PubMed2001

[Evaluation of surgical treatment of anal fistula].

Second reason for consultations in proctology in our department after hemorroïds-linked illnesses, fistulas in ano constitute a chronic disease which causes therapeutic difficulties linked mainly to the futur functionning of the sphincter, especially in its most complex types. In our group of 43 patients in whom surgical exploration with stylet was the key of the diagnosis, the anorectoscopy and even less chirurgical examination were not often contributive, the fear of post-operative incontinence forced us to prefer ligation-section with rubber every time that the sphincter was involved. With our results, the majority of patients (41/43) healed in normal periods with a sufficient functionning of the anus. This result confirmed our attitude towards the sphincter: that is to save if possible.

Adolescent↗
PubMed2001

[Duodenal ulcer: truncal vagotomy with celioscopy. Report of 53 cases].

The recent introduction of laparoscopic surgery in the therapeutic arsenal of duodenal ulcer enabled us to carry out these interventions by abdominal route in order to appreciate the early results. It concerned a prospective study from March 1999 to August 2000 of 53 cases of which were 47 men and 6 women, aged from 16-75 years average age 52 years. Twenty six patients had pyloro-duodenal stenosis, the rest, chronic duodenal ulcer. Vagotomy was carried out on a patient on dorsal decubitus under general anesthesia with oro-tracheal intubation operator within the legs of the patient and the monitor at the right hand side. The process required four trocars depending on the morphology of the patient. A pneumoperitoneum of 3-5 litres permitted to attain the oesophagial hiatus by collapsing the pars-flaccida of the minor epiploon, the reperation of the right diaphragmatic pillar and the discovery of the posterior vagus nerve which was coagulated and sectioned. The traction of the body of the stomach towards the ombilious exposed the anterior portion of the stomach, thanks to the coagulator, the anterior branches of the vagus nerve are sectioned. Drainage by minilaparotomy terminates the intervention if only stenosis existed. Mortality was nul. The time of intervention was 35 to 135 minutes with an average of 71 minutes. The hospital stay was between 3 and 12 days with an average of 5 days. Three conversions to laparotomy (difficultdissection, liver cirrhosis, breakdown of materials), pleural wound consisted the morbidity. Two cases of re-operation due to evacuaton poorly appreciated in pre-operation period were observed. The results according to Visick criterias were: 1 : 51; II : 0; III : 0; IV: 2 patients for a follow up of 3-17 months. Vagotomy under coelioscopy is an intervention which permits to obtain results comparable to those of conventional surgery.

Adolescent↗
PubMed2000

Connections between the trigeminal mesencephalic nucleus and the superior colliculus in the rat.

Retrograde tracing methods are employed here to demonstrate that neurons in the trigeminal mesencephalic nucleus (5me) project to the superior colliculus (SC) in the rat. These neurons, mainly of small size, are situated bilaterally in the caudal part of the nucleus. Anterograde tracing studies demonstrated the existence of SC projections to neurons in 5me. The SC fibers contact 'en passant' small as well as large cell bodies of 5me neurons. These pathways suggested a role of the 5me neurons in oculomotor control and associated oro-facial functions.

Animals↗
PubMed2000

[Emergence and course of the ilioinguinal nerve of the groin].

The aim of our study was to find a way of preserving the ilioinguinal nerve during surgical procedures for the repair of inguinal hernias. 40 inguinal regions were dissected, 37 ilio-inguinal nerves studied. The emergence of the nerve was at 4.21 cm of the anterior superior iliac spine, at 0.78 cm of the inguinal ligament on average. Its course was parallel to the inguinal ligament, always lay under the aponevrosis of the external oblique abdominal muscle, it passed through the superficial abdominal ring in 67.56% before proceeding on anterior side of spermatic cord. This result allowed us to examine the possibility of the nerve course variation's, of anastomosis with iliohypogastric nerve and particularly the best way to identify it when surgical procedures are performed in the lower portion of the abdomen.

Hernia, Inguinal↗
PubMed2000

[Adnexal masses in the Surgical Clinic of the University Hospital Center of Dakar, 74 cases].

The aim of this study was to assesss epidemiological, clinical and the therapeutic aspects of annexial masses. We have performed a retrospective study from 15/09/1994 up to 31/12/1997 including 74 patients. The prevalence rate was 18.40% of the overall gynecologic surgery in our department. Mean age was 36 years old. The range 30-41 years represented 40.5% of our cases. The mean gestity was 4 and the average parity 4. The most common clinical features were pelvic pains (75.57%) and hypogastric masses (50%). The duration of the disease ranged from 1 to 10 years. The general status was good in 94.59% of cases, bad with ascites in 5.41%. The annexial masses were cystic in 87.83%. The ovarian cysts were located at the both sides in 45.94, and bilateral in 8.10%. The annexial masses were solid in 9.45%. An abscess was found in 6.75%. We have performed an annexectomy in 66.1% and a cystectomy in 16.21%. The post operative complications were wound suppuration in 13.51%. The mortality rate was 1.35%. At the long-term follow up we have noticed an eventration in 1.35% and a recurrence with need of reintervention in 16.21%. The pathologic exam found a benign tumor in 95.16% and a carcinoma in 4.84%. The annexial masses are very common in our practice. They involve young multipare women. The main clinical outcome is pelvic pains. Annexectomy is the principal treatment.

Academic Medical Centers↗
PubMed2000

[Recent traumatic peroneal tendon dislocation: a case report].

Peroneal tendons dislocation describes a permanent or intermittent displacement of these tendons out of the retro malleolar sucket to its lateral side. It was described in fist in 1803 by Monteggia. It remains a rare affectation, dominantly of traumatic causes, mostly by passed in emergency situation. Also in its rarity, it remains remarkable for its diagnostic interest but also for its management which remains only surgical. This case concerned an adult of 24 years old, victim of closed trauma of the right ankle, the ankle was forced in varus and supine position. Ths initial diagnosis was a benign sprain which was later rectified 14 days after for a diagnosis of peroneal tendons dislocation. During the operation, a rupture of the retinaculum like type II of Eckert and Davis was noticed. A simple suture technique using Exner method give a good result 14 months later. The authors insist after this case indifferential diagnosis with sprain and recommended a surgical repair in recent lesions.

Adult↗
PubMed2000

[Antidiabetic activity of Zizyphus mauritiana Lam (Rhamnaceae)].

In traditonnal medicine, several plants were used in diabetes treatment. Among them, the aqueous extract from the leaves of Zizyphus mauritiana Lam (Rhamnaceae) was studied. The extract was administrated per os to Wistar rats made diabetics either temporarily by oral glucose tolerance test (first case) or definetely by subcutaneous injection of alloxan (second case). It was observed a striking decrease of the hyperglycemic arrow (p < 0.05) in the first case, with 300 mg/kg administrated 90 minutes before starting the test. In the second case, the results obtained with a dose of 300 mg/kg once or twice a day were identical as those with glibenclamide at 0.2 mg/kg per day. So, the antidiabetic activity of Zizyphus mauritiana Lam was experimentally born out but it has to be standardized for common use.

Alloxan↗
PubMed1999

[Deep onchocerciasis of the left thigh. An unusual case].

INTRODUCTION: Commonly onchocercoma has been presented as superficial and multiple nodules. When it's unique and deeply situated, its clinical diagnosis is difficult. An uncommon form of onchocercoma is reported. CASE REPORT: A 37 years old man presented a big tumor at the inferior third of the left thigh like lipoma or liposarcoma because of microcalcifications. The tumor was removed. It was a cyst containing a liquid like an "mango juice". The histological examination was performed. Degenerated microfilariae of Onchocerca volvulus was found. DISCUSSION: A big and deep onchocerma of the thigh is uncommon and diagnosis before operation is very difficult. Histological examination have eliminate filarial infections like Dracunculus medinensis and have given the right diagnosis. Radiological microcalcifications and absence of microfilariae at the parasilogical and ophthalmological examinations recall an "aged" onchocercoma. For this reason, we didn't realise a chemotherapy. CONCLUSION: This tumor in Sahel areas is very difficult to diagnose before operation. The histological examination is very important in this case. We don't use chemotherapy because this onchocercoma looks old without alive microfilariae.

Adult↗
PubMed1999

[Fibrodysplasia ossificans progressiva or Munchmeyer disease apropos of 2 cases].

Fibrodysplasia ossificans progressiva or myositis ossificans progessiva or still Munchmeyer disease is a genetic ailment with dominant autosomic transmission. It includes a high rate of change and doesn't appear any race. The authors gave an account of two remarks about it on a causal and late discovery upon two young black Africans. The first observation is a nine year-old-boy, without any similar family previous history and who has been hospitalized in maxillo-facial milieu for a mandible osteitis staphiloccocus. It showed some muscular ossifications of paravertebral, cervical, dorsal and lumbar nature--from a spontaneous appearance and evolving progressively since the age of three months. The radiographic results displayed some specific bones disorders which enable to retain the diagnosis above. The second observation is the case of a twenty four-year-old-woman who has previously benefitted from a surgical exploration a non-inflammatory muscular tumefication at the right arm which occurred at the age of twenty one. Three years later, she took surgery for the restriction of the oral gap and a right hand side lumbar paravertebral tumefaction which was thus restricting the mobility of the rachis. The radiological results have found some specific bone disorder++ at the hands and the feet which enable to link the paravertebral ossifications to their fibrodysplasic origin. Munchmeyer disease remains a affection of easy radio-clinical diagnosis. The essential point is to precociously think of it before the specific osseous anomalies occurring at the level of the feet and the hands. The functional or even vital prognosis remains closely linked to both the important and the topography of conjunctivo-muscular ossifications.

Adult↗
PubMed1999

[Anatomical study of the interosseous membrane of the forearm].

The authors have dissected 20 forearms of human cadavers to study anatomy and some functions of the IOM. The fibers bundles of the IOM were arranged in one plane descending obliquely and distally from the radius to insertion to the ulna. Central band of the IOM was easily found and was thick. It's a resistant ligament for longitudinal stability of the radius. Now, it's important to know anatomical alignment of the IOM because ultrasound imaging can be used for diagnosis of its rupture or elbow injuries and in a early future, surgical methods of repair or reconstruction of IOM will be developed.

Forearm↗
PubMed1998

The recurrent laryngeal nerve (RLN): application to transhiatal oesophagectomy.

To emphasize the risks of recurrent laryngeal nerve lesions during transhiatal oesophagectomy an anatomical study of the course of the recurrent laryngeal nerve (RLN) was performed. Twenty RLN were dissected in their thoracic portion. This work showed the constancy of the low origin of the nerve in the adult under the aortic arch, and its course in the tracheal angle. It confirmed the close connections of the nerve with the posterior mediastinal viscera. Lastly, it displayed oesophageal nerve branches arising from the RLN and a few anastomoses between them and the tracheal nerve branches. This anatomical disposition resulted into the difficulty of transhiatal oesophaphagectomies and the risk of injury of the recurrent laryngeal nerve. The possibility of nerve lesions can explain the respiratory complications of this surgical approach.

Adult↗
PubMed1998

[Scapulo-thoracic mycetoma. A rare localization, a particular form].

INTRODUCTION: An uncommon form and a rare localization of mycetoma is reported. The aim of this report was to distinguish this inhabitual form of mycetoma from some tropical diseases like onchocerca and other fungal diseases. CASE REPORT: A 55 year old man was admitted 10 years after a septic worm-hole for a scapulo-thoracic tumor. This encapsulated mass was a bending and rounded polyfistular one attached to the dorsal aspect of left shoulder. The fistula discharge a serosanguineous or purulent exudate. The characteristic red granule was not visible. The tumor was removed and histological examination was performed. A typical granuloma of red granule of streptomyces pelletieri was found. A good result was obtained with associated cotrimoxazole treatment. DISCUSSION: Scapulo-thoracic form included: scapular, axillary and chest form of mycetoma. All these localizations are rare. One of them can be complicated by osteitis or pleuro-pulmonary localization. Streptomyces pellitieri is the actinomycetic causal agent. This encapsulated form is uncommon. CONCLUSION: Scapulo-thoracic mycetoma is rare. Encapsulated and pedicular form is uncommon. Around Sahel areas, differential diagnosis must be evoked such as parasitic and mycobacterial infections.

Dermatomycoses↗
PubMed1997

The Sesbania Root Symbionts Sinorhizobium saheli and S. teranga bv. sesbaniae Can Form Stem Nodules on Sesbania rostrata, although They Are Less Adapted to Stem Nodulation than Azorhizobium caulinodans.

Sesbania species can establish symbiotic interactions with rhizobia from two taxonomically distant genera, including the Sesbania rostrata stem-nodulating Azorhizobium sp. and Azorhizobium caulinodans and the newly described Sinorhizobium saheli and Sinorhizobium teranga bv. sesbaniae, isolated from the roots of various Sesbania species. A collection of strains from both groups were analyzed for their symbiotic properties with different Sesbania species. S. saheli and S. teranga bv. sesbaniae strains were found to effectively stem nodulate Sesbania rostrata, showing that stem nodulation is not restricted to Azorhizobium. Sinorhizobia and azorhizobia, however, exhibited clear differences in other aspects of symbiosis. Unlike Azorhizobium, S. teranga bv. sesbaniae and S. saheli did not induce effective stem nodules on plants previously inoculated on the roots, although stem nodulation was arrested at different stages. For Sesbania rostrata root nodulation, Sinorhizobium appeared more sensitive than Azorhizobium to the presence of combined nitrogen. S. saheli and S. teranga bv. sesbaniae were effective symbionts with all Sesbania species tested, while Azorhizobium strains fixed nitrogen only in symbiosis with Sesbania rostrata. In a simple screening test, S. saheli and S. teranga bv. sesbaniae were incapable of asymbiotic nitrogenase activity. Thus, Azorhizobium can easily be distinguished from Sinorhizobium among Sesbania symbionts on the basis of symbiotic and free-living nitrogen fixation. The ability of Azorhizobium to overcome the systemic plant control appears to be a stem adaptation function. This last property, together with its host-specific symbiotic nitrogen fixation, makes Azorhizobium highly specialized for stem nodulation of the aquatic legume Sesbania rostrata.

Journal Article↗
PubMed1997

[Anatomic study via dissection of the common fibular nerve: etiopathogenic consideration].

In order to understand and prevent the particular rate of the common fibular nerve palsy during the traumatisms of the main stem of the sciatic nerve; the authors have studied through dissection the osteomuscular and aponeurotic relationships of 38 common fibular nerves. They blame it on the relations between the nerve and the proximal ends of the fibula; the nerve can be stretched on and mainly on its fixation on the crural fascia by fibrous tracts seen in 78.94 of the cases.

Adult↗
PubMed1997

[Evaluation of the predictive value of fibrin degradation products in the detection of deep venous thrombosis after total knee prosthesis].

The total knee arthroplasty (TKA) favours deep venous thrombosis (DVT), more often sural thrombosis. In this case, pulmonary embolism is exceptional but sural thrombosis can give a poor functional prognostic by trophic disorders. The purpose of this work is to verify the predictive value of D-Dimer by Elisa technic in the detection of DVT after TKA. We have studied 42 TKA at the Edouard HERRIOT Hospital(Lyon) between April 2, 1992 and October 20, 1994. Patients were divided in two groups: with DVT (n = 5) and without DVT (n = 37). Prophylactic heparinotherapy was systematic. The biologic follow-up by ELISA technic(Fibrinostika FbDP, Organon Teknika) of the D-Dimer were realized at D0 (Day 0) preoperative period and D1, D4, and D6 postoperative period. An echo-Doppler exam were effected at D8 postoperative. The analysis of mean rate of the D-Dimer didn't show significative difference between the two groups at D0, D1, D4 and D6. But, we observed that the rate of D-Dimer increased after TKA significantly in both groups. We can't evaluate predictive interest of the D-Dimer after TKA but the little number of DVT authorizes to pursue this study and to moderate our conclusion.

Aged↗
PubMed1996

[The sensitive branch of the radial nerve at the inferior third of the forearm and at the wrist. Clinical applications].

The sensitive branch of radial nerve is superficial at the inferior third of forearm. This explain frequency of their operative lesions. The purpose of our work is to study his anatomy for choosing surgical approach who protect the nerve. The sensitive radial nerve was dissected is 20 cadaver forearms and wrists. The ride of the nerve and his terminal branches was constant at the lateral side of the radius may be the origins of the terminal branches was variable with 40% of specimens innervating the radial 2 1/2 digits. This is the common terminal distribution of the nerve. The authors do not recommended lateral approach advise anterior surgical approach for the inferior third of the radius to prevent nervous lesions, disagreeable in post-operative period.

Forearm↗
PubMed1996

[Early evaluation of surgical treatment for patella fractures].

From mars 1989 to mars 1992, 26 fractures of the patella were treated surgically in the "Orthopaedic and Traumatological center in Dakar". We have evaluated the functional and the anatomical results. The mean age of the patients was 45 years. The most common mechanism was direct trauma (24 cases). We have registered 12 opened fractures, 24 displaced fractures and 13 comminutive fractures. Surgical methods were modified tension band internal fixation (18 cases), tension band wiring for fixation (5 cases) and circumferential wire loop fixation (3 cases). The mean follow-up was ten months. Only eight patients have adequate post-operative kinesitherapy. So functional results was poor in 50% of cases. The anatomical reconstruction of the patella were achieved in 18 cases. We have observed a relation between: anatomical results and inadequate indications; excellent functional results and adequate kinesitherapy. So the authors recommend modified tension band internal fixation in transversal fractures and fracture with central communication. Tension band wiring for fixation is used in others comminutive fractures. Post operative kinesitherapy must be realized in a adequate center and criteria of functional evaluation be wider theses.

Adult↗