Foetal instrumental extractions (IE) at the maternity at Nabil Choucair Health Center (Senegal) from 2005 to 2016: epidemio-clinical and prognostic aspects

Background: The main objective was to take stock of practices on instrumental extractions at the maternity of Nabil Choucair Health Center.Methods: This was a prospective, descriptive study from 1 January 2005 to 31 April 2016. The collection was carried out through the data sheet completed on the basis of an analysis of files, the delivery register and the anaesthesia register of the operating room. The data was entered using the Sphinx software version 5 and the data analysis performed by Epi info version 3.5.Results: 240 instrumental extraction cases were compiled, and their frequency was 0.4%. The mean age of patients was 24.8 years. Obstetric vacuum was the most commonly used instrument (66.4%) and an episiotomy was performed in 73.6%. Maternal complications were dominated by simple perineal tears (6.2%).Conclusions: Instrumental extractions should be rehabilitated in our maternity facilities to combat the outbreak of the caesarean section. Instrumental extractions indications and techniques should be controlled to avoid complication

Practice of diagnostic hysteroscopy after myomectomy in the prevention of intrauterine adhesions: experience of Ouakam military hospital (Dakar, Senegal)

Background: Surgical treatment of myomas may be the cause of some complications, including intrauterine adhesions. The objective of the study was to evaluate the incidence of intrauterine adhesions in patients who underwent myomectomy by laparotomy or hysteroscopic resection.Methods: We carried out a prospective single center study from August 1st 2016 to May 31st 2017 in the gynaecological and obstetrical department of Ouakam the Military Hospital (Senegal). We included patients who underwent myomectomy by laparotomy with opening of the uterine cavity or myomectomy by hysteroscopy. A diagnostic hysteroscopy was performed to search post-operative intrauterine adhesions. For each patient, we studied the socio-demographic aspects, the surgical approach, the delay of diagnostic hysteroscopy, the appearance of uterine cavity and the tolerance of hysteroscopy.Results: 54 patients underwent the diagnostic hysteroscopy. The mean age was 36 years old. The main indication of myomectomy was menorrhagia. 37 patients underwent myomectomy by laparotomy and 17 by hysteroscopy. Each case was followed by a post-operative diagnostic hysteroscopy with a mean delay time of 58 days. We found post-operative intrauterine adhesions in 7 patients (5 in the laparotomy group and 2 in hysteroscopy group).Conclusions: Early diagnostic hysteroscopy after myomectomy should be done in our context to reduce post-operative intrauterine adhesions and preserve the patient’s fertility

Epidemiological, clinical, prognostic and therapeutic aspects of twin delivery in two referral maternity units in Dakar (Senegal)

Background: Twin pregnancy is the simultaneous development of two embryos and then two fetuses in the uterine cavity. Objective of present study was to assess the epidemiological, clinical, prognostic and therapeutic aspects of twin delivery in two referral maternity units in Dakar.Methods: A descriptive and analytical retrospective bi-centric study of all cases of twin deliveries recorded in two referral center in Dakar was conducted during the period January 1st, 2005-December 31st, 2015, i.e. an 11-year period. It concerned 619 pregnant women who gave birth to twins in these two referral medical structures. The epidemiological parameters, clinical, prognostic and therapeutic aspects of twin childbirth were studied. The data were entered and analysed using Epi info version 3.5.3.Results: The twinning prevalence was 1.11%. The majority of our parturient women (506 or 81.7% of the cases) came from the Dakar suburbs. The average age of the parturient women was 28 years and the gestity age 3.1. Pregnancy was well monitored for 98.5% of the parturient women with an average number of prenatal consultations of 3.6. The first prenatal consultation was performed in 52% of cases in the first quarter. In more than one third of cases (234 or 37.8%), the diagnosis was made in the third quarter of pregnancy. 113 cases (18.2%) of premature rupture of membranes, 10 cases (1.61%) of threat of premature delivery and 7 cases (11.13%) of placenta previa were registered. During labour, the diagnosis was made by clinical examination in 32.2% of cases. Bichorial biamniotic twin pregnancy was the most frequent anatomical type (62.6%). On admission, the first twin (T1) was in cephalic presentation in 56.7%, in breech presentation in 15.2%; The second twin (T2) was in breech presentation in 21.1% of the cases. Caesarean section was related to the first twin in 50.6% and the second twin in 53.8% of the cases. Caesarean section was performed in 50.6% for the first twin and in 53.8% for the second twin. The mean time interval between the delivery of T1 and that of T2 was 17.4 min. Low birth weight was more frequent for the second twin (54.3%). The stillbirth rate was 48.26 per thousand. Maternal complications were dominated by renal-vascular syndromes (4.2%), haemorrhagic causes (1.86%), perineal lesions (1.6%) and uterine rupture (0.97%). Postpartum haemorrhage was observed in 8 cases (1.29%). Maternal mortality was nilConclusions: Twin delivery poses varying difficulties due to the complexity of obstetrical mechanics and the frequency of dystocic presentations. Despite improved maternal prognosis, in recent years, perinatal mortality and morbidity, still high, remain a constant concern

Uterine ruptures during labor: a study of 26 cases at Nabil Choucair Medical Center, in the suburbs of Dakar

Background: This study aims to clarify the epidemiological profile of patients and describe the diagnostic, therapeutic and prognostic aspects of uterine ruptures at Nabil Choucair Health Center, in the suburbs of Dakar.Methods: This was a retrospective and prospective, descriptive and analytical study conducted over a period of 112 months, from July 31, 2005 and March 31, 2015; it concerned all diagnosed cases with uterine rupture, managed at Nabil Health Center Choucair Dakar. Data were collected from antenatal notebooks, delivery records, surgical reports and anesthetic records. The following parameters were studied: socio-demographic characteristics (frequency, chracteristics of patient), the course of pregnancy, diagnostic, prognostic, and therapeutic aspects. Data analysis was performed using SPSS software (version 11.0).Results: During the study period, we recorded 26 uterine ruptures from a total of 34,097 deliveries, that is a frequency of 8 out of 10,000 births. The epidemiological profile of the patients was that of a 30-year old woman, on average, few previous deliveries with an average parity of 3, who received on average 3 antenatal and evacuated in 50% of cases. Uterine rupture occurred in 17 patients on a new uterus (65, 4%) and in 9 patients on a scarred uterus (34.6%). Two patients (7%) were in hemorrhagic shock. A laparotomy aimed at specifying the place of rupture and making the treatment was performed in all patients. It was 18 uterine segmento-corporeal ruptures (69.2%), 5 segmental ruptures (19.2%) and 2 corporeal ruptures (7.6%). We recorded 9 uterine ruptures with living fetus (38.5%). Twenty-three patients (88.5%) underwent conservative suture against only 3 hemostasis hysterectomy (11.5%). The postoperative courses were uneventful in 57.7% of cases. Eleven patients (42.3%) had anemia and we recorded maternal deaths, which is a maternal mortality of 3.84%.Conclusions: Uterine rupture is a serious complication that is still responsible for significant maternal and fetal mortality. Prevention is based on careful monitoring of pregnancy and delivery

Pseudo tumor tuberculosis of the uterine cervix: about a case at the colposcopy and cervico vaginal pathologies unit of the University hospital Le Dantec, Dakar, Senegal

Tuberculosis is still common in developing countries and particularly in sub-Saharan Africa since the advent of the HIV/AIDS. Genital tuberculosis usually affects young women in genital activity period. The most frequent locations are tubal, endometrial and ovarian. The cervical location is rare. We report on the case of a 36 years old patient with eight pregnancies and eight deliveries who lives in a rural area and has got in her history 8 vaginal deliveries with four living children and 4 dead children and who was referred by a colleague for a "tumor of the uterine cervix". In her medical history, there was a BCG vaccination during childhood and she had never received Pap smear. The colposcopy revealed an ulcerating budding tumor of the cervix with necrotic areas. The colposcopy biopsy revealed fibrocaseous tuberculosis of the uterine cervix. Tuberculosis is still a common disease in developing countries. The cervical localization is rare but should be considered in case of an ulcerating tumor budding of the cervix

Global methodology for damage detection and localization in civil engineering structures

The Structural Health Monitoring (SHM) in civil engineering faces several challenges. The main issue lies in defining a reliable and precise methodology of damage detection and localization in order to allow preventive maintenance or to enable the definition of repair actions. In this paper, a new methodology of SHM is proposed. Using Vibration-Based Damage Detection Methods (VBDDM), a damage detection and localization algorithm is elaborated and tested on a Finite Element Model (FEM) of an existing building. In a first case, the damage is introduced artificially by a local reduction of stiffness, while in the second case, the damage is calculated according to a real seismic signal from the italian L’Aquila earthquake. The advantages and disadvantages of each dynamic monitoring technique are discussed and the usefulness of the algorithm is highlighted

Methodology for health monitoring of reinforced concrete structures subjected to seismic excitations

Methodology for health monitoring of reinforced concrete structures subjected to seismic excitation

An algorithm for damage detection and localization using output-only response for civil-engineering structures subjected to seismic excitation

Structure damage in civil engineering is generally caused by natural aging of materials, human activities or natural disasters. Control and monitoring of the structure's health (SHM) present a very important stake for human and material security. In this context, many methods based on structure dynamic behaviour allow detection or localization of structural damages, especially concerning structures submitted to seismic excitations. These SHM technics are usually called Vibration-Based Damage Detection Methods (VBDDM). Every method of detection and localization depends on the accuracy of the experimental identification of modal parameters using Operational Modal Analysis (OMA), as well as number of modes and sensors. So far, no method enables, in simple and quick procedure, a precise detection and localization while having the optimal conditions: minimal number of sensors, use of low order modes. In this paper, we propose a new algorithm using in the first place, Covariance-driven stochastic subspace identification method (SSI-COV) to estimate modal parameters and in the second place, some VBDDM methods to reach a good detection and localization level for robust SHM applications. In order to evaluate our approach, a finite element model of reinforced concrete building is established