Search PubMed⌕ Search

Biomedical subjects

A Ndiaye

Publications and source records attributed to A Ndiaye.

53 records · Page 3Linked to original sources
PubMed1994

[Arterial vascularization of the sinoatrial and atrioventricular node (preliminary study apropos of 15 anatomic parts].

Arterial supply to the sino-atrial and atrioventricular node is studied after coronary RHODOPAS injection on 15 adult hearts taken off during autopsy. Both coronaries were injected in 7 cases, left ostium in 2 cases and the right on in 6 cases. The sino-atrial node is supplied by the right sino atrionodal artery (S.A.N.A) in 6 cases upon 7 and in 3 cases by the left S.A.N.A. Anastomoses exist in 2 cases between the right S.A.N.A. and the left S.A.N.A. The atrio-ventricular nodal artery arises from the retro-ventricular trunk branching from the right coronary artery mainly. The authors emphasize that care must be taken to protect the vascular supply to the conduction tissue during cardiac surgery.

Adult↗
PubMed1994

[Anatomy of coronary arteries].

To study the coronary arteries we collected 200 black african hearts which coronaries have been injected with Rhodopast then corroded. Most of the arteries (74.10%) originate from two separate sinuses one on the left and the other one on the right. The right coronary artery runs in two different modes. In one mode it is short and ends in different branches. In the other mode it is long and runs up to the crux. The left coronary artery arrives on the left border of the heart and gives the circumflex and the left border artery. The bifurcation mode of division was 32.25% for the right coronary artery and 69.35% for the left coronary artery which had à trifurcation in 36.66%. The superior atrial artery was not seen in 3 cases and the infundibular arteries derived from the aorta in 3 cases. We have encountered intercoronary anastomoses in 82.6% of cases. These results are similar to these observed in the literature. The only difference is on the rich intercoronary anastomosis which seems to be an african particularity even though we cannot establish if they are functional or not.

Arteriovenous Anastomosis↗
PubMed1994

[Biometric aspects of the lumbar canal in Senegalese of the African negro race (apropos of 21 autopsy parts)].

Because of frequency and seriousness of myelo radicular complications of narrow lumbar canal, the authors studied its radiological and anatomical measurements in order to specify the standards for senegalese negro african. For that purpose, they collected samples of 21 lumbosacral spines from new cadavers through medico legal necropsies. Pieces have been first X rayed, then treated. They measured the antero posterior diameter of vertebral corpse, the anterio posterior diameter of vertebral canal, the narrowest transversal diameter of vertebral corpse and the inter pedicular distance. The authors found no significant differences between radiological and anatomical measurements, but the latest changed from one stage to another. The variations also were not important comparatively to standards established by two authors.

Biometry↗
PubMed1994

[Pupillary blockage after intracapsular cataract extraction in the adult apropos of 4 cases].

Intra capsular extraction is the most employed surgical technics for the treatment of senile cataract in developing countries. Nevertheless complications are usual, among them the pupillary block. The authors notified in 365 intra capsular cataract extractions, executed during 8 months, 4 cases of pupillary block occurred after operation without incident. The 3 cases had favorable evolution after an average of 4 days with medical treatment. 1 case had unfavorable evolution to aphakic glaucoma in spite of medical and surgical treatment. They point out in the necessity of strict post operative supervision and early treatment.

Adult↗
PubMed1993

[Osteosynthesis of displaced fractures of the acetabulum with Letournel plate. Apropos of 14 cases].

Up to 1989, conservative treatment was used for fractures of the acetabulum at the Dakar teaching hospital, with in previous study, of poor result. The same authors present here their first experience of surgical treatment of displaced fractures of acetabulum using LETOURNEL plate at the "Centre de Traumatologie" of Dakar for three years. Fourteen patients (12 men and 2 women) presented after traffic road accident: fracture of posterior wall: 7 cases transversal fracture: 1 case complex fractures: 6 cases. Those displaced fractures were associated with hip dislocation in 8 cases. The initial emergency treatment by reducing the dislocation, associated with transfemoral pin traction was realized. At the day 7 through a posterior surgical approach in 11 cases and through a combined anterior and posterior approach in three cases. The anatomical reconstruction of the acetabulum was achieved in 12 cases. It's still early to make a final clinical assessment, but the early functional results using MERLE D'AUBIGNE's criteria (pain, lamenliss, mobility) are very good in 10 cases and poor in 2 cases. The reliability of the procedure, and the adequate post operative kinesitherapy is according to the authors the main indication for displaced fractures of the acetabulum.

Acetabulum↗
PubMed1992

[Anatomic study of the anterior interventricular artery (Ramus interventricularis anterior). Apropos of 200 anatomical samples].

The coronary system has been studied on the basis of 200 hearts taken during necropsies and treated by injection of a synthetic resin followed by corrosion. Sixty samples were used for the study of the L.A.D. and one hundred and fifty were used for studying intercoronary anastomosis on L.A.D. The study highlighted the following particularities: the left coronary is the most common origin of L.A.D. (90 per cent cases); the L.A.D. irrigates: all the left ventricle ventral wall, the right apical part of both ventricles and the upper portion of the interventricular septum; out of 92 anastomoses, 49 were located on the L.A.D. which could protect against ischemia.

Coronary Disease↗
PubMed1991

[Docimological analysis of the anatomy test for the PCEMII final exam in Dakar].

This docimological analysis is based on computer treatment of the results of the anatomy exam for the two sessions of July (159 candidates) and October (56 candidates) of the identification questions, discrimination questions, coupling (paining), grouping, association and diagram labelling. The results were appraised following certain parameters: the gross score revealed a rather low average score for the whole class (14.57 and 9.57 over 30): the low success rate in July and the average figure of October indicate, in general, either the difficulty of the questions for the students or a bad reception of the message; the bad discrimination index, since only 21% of the questions are of the discriminatory type. This finding pointed to a revision of 50 of the 68 questions of July and 53 of the 68 questions of October. On the whole, only 15 questions, over the two sessions, could have been kept unchanged for an eventual bank (stock of data): The correlation coefficient has showed a significant relation between success in the anatomy subject and success in the PCEM2 exam. This work has showed the possibilities that computers may offer in the teaching of anatomy and the evaluation of students. Besides, it emphasizes the importance of the anatomy grade in the PCEM2 exam. Finally, the mode evaluation used help exploring the various levels of the cognitive areas (memorization, interpretation of data, problem-solving) and to build up a bank of anatomy questions.

Anatomy↗
PubMed1990

[Branches of the vertebral artery to the spinal cord].

On the cervical level, ramifications stemming directly from the vertebral artery are studied while nevertheless taking into account contributions from rising and deep cervical, and while sometimes even from the upper intercostal and/or the occipital, as well as anastomoses contracted from these various sources at the level of the neck. No bulging cervical artery exists, but the variations observed are frequent. Pedicles are rarely symmetrical and usually alternate between left and right sides. Two, differently coloured injections sometimes reveal a preponderance for one side rather than the other, but the injections must be able to be made at the same time and with an equal degree of precision if a formal conclusion is to be drawn from this.

Adult↗
PubMed1989

[Epidemiological study of diarrhea in children 0-5 yr of age].

The authors use an investigation carried out at Pikine Social Paediatric Institute on children consulting for diarrhoea to underline the epidemiological factors of this affliction in Dakar suburbs: the average age of the children is 14 months; almost half the children came from families with low or irregular incomes; coprologic examination showed parasitic germs in 26.7% of the cases, rotavirus in 24.4%, and bacteria in 17.6%.

Bacterial Infections↗
PubMedDate not supplied

[Mortality caused by traffic accidents at the Traumatology and Orthopedics Center of Grand-Yoff. A 2-year study. Apropos of 156 cases].

Most of road accident casualties are directed to the "Centre de Traumatologie et d'Orthopedie" between March 1989 and March 1991, the emergency Department received 8250 casualties treated by a team core comprising anesthetist-intensive care doctors and orthopaedic surgeons supplemented when necessary by other specialists. Out of those 8250 casualties aged 30 in average, 156 died at the hospital in varying time limits. The authors of present study intend to assess the efficiency of the medical and surgical care provided to identify the most frequent death causes and to suggest ways means of reducing the death toll. Forensic autopsies revealed the following lesions by order of prevalence: brain traumas 68, polytraumatisms 58, cervical vertebral traumas 13, abdomen traumas 7, polyfractures 3. In despite of the working conditions improvement at this specialized center (intensive care, technical facilities and staff) the mortality rate remains high, specially in polytraumatisms and brain traumas. The authors insist upon the need for a medically assisted transport unit which would take care of casualties before their arrival at hospital and for the acquisition of modern diagnosis means (tomodensitometry).

Abdominal Injuries↗
PubMedDate not supplied

[Can plantar ulcers associated with leprosy be treated in the field. Results of experience in Senegal].

The introduction of a program for the treatment of plantar ulcers (PU) in field conditions in Senegal was studied. The program was complementary to the Health Education and Protective Footwear to Prevent Disability (POD) initiatives within the Senegalese anti-leprosy program. The wound care given in health centers was coded and simplified. Access to hospitals was made easier for those patients requiring surgery. More than 30% of patients with PU were treated each year, with a mean of 62% cured. An increasing number of leprosy patients have been admitted to regional hospitals for surgery. Never before have patients with signs of leprosy had access to general hospitals. This study emphasizes the need for regular supervision of the individuals treating wounds.

Foot Ulcer↗