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Search Results: 1 - 10 of 52779 matches for " Agounkpé Michel Michael "
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Urologic Complications after Gynaecologic and Obstetric Surgery at the Urology-Andrology Teaching Clinic of Teaching Hospital of Cotonou  [PDF]
Hounnasso Prince Pascal, Avakoudjo Josué Georges, Babadi Naméoua, Paré Abdoul Karim, Ouattara Adama, Vodounou Alexandre, Agounkpé Michel Michael
Open Journal of Urology (OJU) , 2014, DOI: 10.4236/oju.2014.410021
Abstract:

Objective: To study the epidemiology and current trend in the management of urologic complications following obstetric and gynaecologic surgeries at CUUA University hospital of Cotonou. Patients and Methods: It was a retrospective study of patients referred with urologic complications following obstetric and gynaecological surgeries. The study took place at the Teaching Clinic of Urology Andrology at CNHU of Cotonou between April 1, 2008 and March 31, 2013. Results: Forty-one patients were studied. They represented 3.5% of people hospitalized at CUUA throughout the study period. The average age was 41 years swith range of 20 and 57 years. Twenty-one (51.2%) of them were married. Thirty patients (73.2%) were referred from a non-academichospital, while 7 patients (17.1%) were referred from academic hospital. Caesarean section was the primary gynecological surgery in 22 cases (53.7%) and hysterectomy in 19 cases (46.3%). Clinically, the pre- dominant symptoms were leakage of urine throughout the vagina and obstructive anuria with or without back pain. We found 31 cases of VVF, 5 cases of bilateral ligation of the ureters, 3 cases of unilateral ligation of the ureter, 1 ureteralinjury and 1 uretero-vaginal fistula. These complications were diagnosed postoperatively in 95.1% of cases. Surgeries done included VVF repair in 31 cases (75.6%), unilateral ureteral reimplantation in 4 cases (9.8%), removal of ligation of the ureters in 3 cases (7.3%), bilateral ureteral reimplantation for 2 cases (4.9%) and end-to-end anastomosisin 1 case (2.4%). The postoperative period was uneventful in 29 cases and we observed 7 cases of surgical site infection. The overall success rate was 87.8%. Conclusion: Urological complications following gynecologic surgeries managed at the urologic department of teaching hospital of Coto-nou had an even higher incidence. Early diagnosis especially during the operative procedure would save the patients’ serious complications and open surgery due to the lack of endo-urological facilities. The most important factor in prevention is good knowledge of pelvicanatomy and good knowledge of the surgical techniques of caesarean operation section and trans-abdominal hysterectomy.

Symptomatic Urinary Lithiasis: Epidemiology and Management at Urology Department of University Hospital of Cotonou  [PDF]
Prince Pascal Hounnasso, Josué Dejinnin Georges Avakoudjo, Abdoul Karim Paré, Kirakoya Brahima, Adama Ouattara, Michel Michael Agounkpé, Gilles Natchagandé, Sanni Rafiou Toré, Abubakar Babagana Mustapha, Alexandre Vodounou
Open Journal of Urology (OJU) , 2015, DOI: 10.4236/oju.2015.52002
Abstract: Purpose: To study the epidemiology and treatment modalities of urolithiasis at Urology Department of University Hospital of Cotonou. Materials and Methods: It was a retrospective and descriptive study over a 10 years period ranging from January 1st, 2004 to December 31st, 2013. One hundred and two patients who were hospitalized for symptomatic urolithiasis at the Urology Department of University Hospital of Cotonou were enrolled. Results: Hospital incidence of urolithiasis was 3.7%. Patients mean age was 39.6 years (extremes: 10 years to 73 years). Male to female ratio was 2.2. The main reason for consultation was renal colic for 81 patients (79.4%). Average duration of symptoms at presentation was 5 months (range: 1 day to 10 years). A total of 173 stones were identified with an average size of 12 mm (range: 1 mm to 95 mm). Calyceal stones were seen in 32.9% of cases, renal pelvis stones in 21.4% of cases, ureteral stones in 34.1% and bladder stones in 11.5% of cases. Open surgery was the main treatment for stones that could not be managed medically. 50.8% of patients underwent surgery with extraction of 116 stones. This represented 67.1% of all stones. 9 patients (8.8%) had expelled their stone during urination. The postoperative course was uneventful in 77.5% of cases. Conclusion: Modern treatment options for urolithiasis remain rudimentary in our health facilities. Open surgery is still the main stay of treatment in our countries with limited resources.
About 4 Cases Report of Giant Hydronephrosis Inurology Department of the National University Healthcare, CNHU HKM of Cotonou  [PDF]
Dodji Magloire Inès Yevi, Christian Henry Renaud Hounnasso, Gilles Natchagandé, Dejennin Georges Josué Avakoudjo, Michel Micha?l Agounkpé, Jean Sossa, Fred Hodonou, Prince-Pascal Hounnasso
Open Journal of Urology (OJU) , 2018, DOI: 10.4236/oju.2018.84013
Abstract: The authors report 4 different cases of giant hydronephrosis in the urology department of the national university healthcare, CNHU HKM of Cotonou. The frequency of the items, the etiologies and the different treatments carried out were elucidated. The patients were all females. The hydronephrosis affected the left kidney. The most frequent etiology was pyelouretral junction syndrome seconded by obstructive nephrolithiasis in the upper urinary tract. One of the last etiologies was lower pole vascular plexus. Three nephrectomies and one K?SS-HEYNES-ANDERSON pyeloplasty were carried out. Conclusion: Giant hydronephrosis is a rare condition. The etiologies were organic-based and malformed. The therapeutic attitude adopted shows the interest of an antenatal diagnosis for early care.
Epidemiological Aspects of Female Urological Diseases, at the National University Teaching Hospital H. K. Maga of Cotonou from 2008 to 2017  [PDF]
Dodji Magloire Inès Yevi, Josué Dejennin Georges Avakoudjo, Dètondji Fred Jean-Martin Hodonou, Yves Nsounfou Ngapna, Jean Sossa, Gilles Natchagandé, Fouad Kolawolé Yde Soumanou, Michel Micha?l Agounkpé
Open Journal of Urology (OJU) , 2018, DOI: 10.4236/oju.2018.810032
Abstract: Most urological conditions are represented by male disorders. Analyzing certain epidemiological aspects of female urological disorders at the National University Teaching Hospital of Cotnou, will allow us objectively to have reliable data to optimize the urological management of women. Patients and Methods: This was a retrospective, analytical and descriptive study that was conducted at the CNHU-HKM over a 10-year period from January 2008 to December 2017 on the epidemiological aspects of female urological diseases from the study of patient records. The variable studied was: the age, the profession, the year of admission, the organ affected, and the type of pathology. The confidentiality of the data has been ensured. Results: Female urological disorders over 10 years accounted for 9.62% of all patients received in Urology Department. The age group greater than 50 years was the most common at 31.34%. Traders and housewives were the most numerous (39.93% and 14.55%). Bladder diseases were the most frequent (51.50), dominated by vesico-vaginal fistulas (29.85%). In addition to fistulas, tumoral affections were most prevalent at 27.99% followed by infectious diseases at 8.21%. The lithiasic affections were infrequent at 6.72%. Conclusion: Female urological conditions are infrequent but not negligible, dominated by vesico-vaginal fistulas and tumors in the context of developing countries. The specific evaluation of each pathology group can help optimize management.
Experimental Aspects of Colloidal Interactions in Mixed Systems of Liposome and Inorganic Nanoparticle and Their Applications
Raphael Michel,Michael Gradzielski
International Journal of Molecular Sciences , 2012, DOI: 10.3390/ijms130911610
Abstract: In the past few years, growing attention has been devoted to the study of the interactions taking place in mixed systems of phospholipid membranes (for instance in the form of vesicles) and hard nanoparticles (NPs). In this context liposomes (vesicles) may serve as versatile carriers or as a model system for biological membranes. Research on these systems has led to the observation of novel hybrid structures whose morphology strongly depends on the charge, composition and size of the interacting colloidal species as well as on the nature (pH, ionic strength) of their dispersing medium. A central role is played by the phase behaviour of phospholipid bilayers which have a tremendous influence on the liposome properties. Another central aspect is the incorporation of nanoparticles into vesicles, which is intimately linked to the conditions required for transporting a nanoparticle through a membrane. Herein, we review recent progress made on the investigations of the interactions in liposome/nanoparticle systems focusing on the particularly interesting structures that are formed in these hybrid systems as well as their potential applications.
Spatiotemporal heterodyne detection
Michael Atlan,Michel Gross
Physics , 2009, DOI: 10.1364/JOSAA.24.002701
Abstract: We describe a scheme into which a camera is turned into an efficient tunable frequency filter of a few Hertz bandwidth in an off-axis, heterodyne optical mixing configuration, enabling to perform parallel, high-resolution coherent spectral imaging. This approach is made possible through the combination of a spatial and temporal modulation of the signal to reject noise contributions. Experimental data obtained with dynamically scattered light by a suspension of particles in brownian motion is interpreted.
Species doubling and effective Lagrangians
Michael Creutz,Michel Tytgat
Physics , 1996, DOI: 10.1016/S0920-5632(96)00744-X
Abstract: Coupling gauge fields to the chiral currents from an effective Lagrangian for pseudoscalar mesons naturally gives rise to a species doubling phenomenon similar to that seen with fermionic fields in lattice gauge theory.
Digital holography with ultimate sensitivity
Michel Gross,Michael Atlan
Physics , 2008, DOI: 10.1364/OL.32.000909
Abstract: We propose a variant of the heterodyne holography scheme that combines the properties of off-axis and phase-shifting holography. This scheme makes it possible to filter off numerically the zero-order image alias and the technical noise of the reference. It is then possible to record and reconstruct holographic images at an extremely low signal level. We show experimentally that the sensitivity of the method is limited only by the quantum nature of photons.
Species Doubling and Chiral Lagrangians
Michael Creutz,Michel Tytgat
Physics , 1996, DOI: 10.1103/PhysRevLett.76.4671
Abstract: Coupling gauge fields to the chiral currents from an effective Lagrangian for pseudoscalar mesons naturally gives rise to a species doubling phenomenon similar to that seen with fermionic fields in lattice gauge theory.
Wide-field Fourier transform spectral imaging
Michael Atlan,Michel Gross
Physics , 2008, DOI: 10.1063/1.2778357
Abstract: We report experimental results of parallel measurement of spectral components of the light. The temporal fluctuations of an optical field mixed with a separate reference are recorded with a high throughput complementary metal oxide semi-conductor camera (1 Megapixel at 2 kHz framerate). A numerical Fourier transform of the time-domain recording enables wide-field coherent spectral imaging. Qualitative comparisons with frequency-domain wide-field laser Doppler imaging are provided.
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