The endocrinology of human pregnancy involves endocrine and metabolic changes that result from physiological alterations at the boundary between mother and fetus. Progesterone and oestrogen have a great role along with other hormones. The controversies of use of progestogen and others are discussed in this chapter. Progesterone has been shown to stimulate the secretion of Th2 and reduces the secretion of Th1 cytokines which maintains pregnancy. Supportive care in early pregnancy is associated with a significant beneficial effect on pregnancy outcome. Prophylactic hormonal supplementation can be recommended for all assisted reproduction techniques cycles. Preterm labor can be prevented by the use of progestogen. The route of administration plays an important role in the drug's safety and efficacy profile in different trimesters of pregnancy. Thyroid disorders have a great impact on pregnancy outcome and needs to be monitored and treated accordingly. Method of locating review: Pubmed, scopus

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Background: Disease surveillance and notification (DSN) is part of the Health Management Information System (HMIS) which comprises databases, personnel, and materials that are organized to collect data which are utilized for informed decision making. The knowledge about DSN is very important for the reporting of notifiable diseases. Objective: The aim of this study is to examine the awareness and knowledge of health-care workers about DSN, and availability of facility records in Anambra State, Nigeria. Materials and Methods: The study was a descriptive cross-sectional one in which relevant data were collected from health-care workers selected by a multistage sampling technique. Qualitative information was also elicited by key informant interviews, whereas an observational checklist, preceded by a desk review was used to examine the availability of facility records. Results: Although 89.8% of the health-care workers were aware of the DSN system, only 33.3, 31.1, and 33.7% of them knew the specific uses of forms IDSR 001, IDSR 002, and IDSR 003 (IDSR: Integrated Diseases Surveillance and Response), respectively. Knowledge of use of the various forms at the facility and local government area (LGA) levels were generally low, although the observational checklist revealed that IDSR 001 and IDSR 002 forms were predominantly found in primary health-care facilities. HMIS forms were less likely to be available in secondary health-care facilities (χ^[2]=7.67, P=0.005). Conclusions: Regular training and retraining of concerned health-care workers on DSN at the LGA level is recommended. This should run concurrently with adequate and regular provision of IDSR forms, copies of the standard case definitions, and other necessary logistics to the health-care facilities by the local and state governments.

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Fractured neck of femur is a common problem seen in elderly osteoporotic females, mostly in Western countries, among which are the extra-capsular fractures such as intertrochanteric and pertrochanteric fractures also known as peritrochanteric fractures, and commonly treated with dynamic hip screw (DHS) or compression hip screw (CHS). The DHS is based on tension band principle and allows the screw to slide within the barrel to enable compression of the fracture when the patient begins to bear weight. This principle only works in the presence of intact medial wall and so cannot be successful in a reverse oblique fracture of the proximal femur. However, it is important that the technique of screw placement is precise and should ideally be central in the femoral neck, on both AP and lateral radiographs. This is why the concept of tip apex distance (TAD) is critical to the outcome of fixation and can accurately predict failure or survival of the screw. A systematic review of articles published in PubMed/Medline, from 1991 to 2011 (twenty years), was carried out to critically analyse common practice with regards to DHS fixation of extra-capsular femoral neck fractures, and review the recommendations of previous authors, with regard to the effect of TAD in DHS fixation. Search words used include TAD, DHS, sliding hip screw, femoral neck fractures, peritrochanteric fractures, tension band principle, fracture collapse, screw cut-out, DHS failure, and failure of fixation. At the end of the review, recommendations and suggestions regarding the ideal techniques of placement of DHS screw into the femoral neck will be made in line with current published literature, in order to establish an evidence base for best practice. A total of forty eight (48) published articles were found relevant to the review topic. Most papers suggested that Tip Apex Distance (TAD) is the most important predictive factor for DHS failure, followed by lag screw position, fracture pattern and reduction, patient's age and presence of osteoporosis. Therefore, we recommend proper training of surgeons, as well as attention to detail while performing DHS for intertrochanteric neck of femur fractures.

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Background: Early initiation of antenatal care is widely believed to improve maternal and fetal outcome. This study was designed to ascertain the gestational age at booking using World Health Organization recommendations for developing countries. Materials and Methods: This cross-sectional study was carried out using interviewer-administered questionnaire to 345 willing participants at a booking clinic in a tertiary health facility in North-Central, Nigeria. Results: A total of 345 women were interviewed. The average age of the clients was 27.1±5.1 years. Almost (45.8%) had at least secondary level of education. One-third of the women were not working women. The average gestational age at booking was 19.1±7.8. Late booking (≥17 weeks) was significantly influenced by the client's level of education ( P=0.017). Reasons for booking late were given as follows: Not being sick (26.1%), Lack of knowledge of booking time (22.8%), having booked elsewhere (14.1%), financial constraints (9.2%), fear of too many follow-up visits (4.9%), spouse's un co-operative attitude (3.9%), lack of transport to the health care facility (2.2%), and other minor reasons (16.8%). Conclusion: Most women booked for antenatal care (ANC) late. Efforts toward maternal education, public health enlightenment campaigns, poverty reduction, and use of focused antenatal care model should be sustained as measures to encourage early initiation of ANC.

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Background: To investigate the relationship between certain maternal characteristic and infant birth weight and weight gain in puerperal women seen at a tertiary health centre. Materials and Methods: We measured the weight of 318, randomly selected infants after a complete physical examination at birth and at 6 weeks postnatal using standard procedures and related them to certain maternal characteristics. Results: There were 318 women and baby pairs. Maternal ages ranged from 16 to 42 years, with a mean of 25.6±1.3 years. Mean birth weight of babies was 3.10±1.89 kg; mean gestational age was 36±4.6 weeks, with 9.4% and 3.0% of babies born having low birth weight or Macrosomia respectively. Mothers from the North of the country, multiparity and systolic and/or diastolic hypertensions were factors associated with low birth weight. At 6 weeks, 27.1% of infants failed to gain weight as expected for their age. Similarly, 37.0% of infants born to mothers with some tertiary education showed slowed weight gain compared with those who had secondary (19.2%) or primary (14.7%) education, P=0.03. Maternal weight at delivery positively correlated with birth weight of the infant (r=0.357, P<0.001). However, maternal weight and blood pressure negatively correlated with infant weight gain at 6 weeks post-delivery. Conclusion: Our study demonstrates that certain maternal characteristics could play a role in the birth weight and early infant weight gain, and are preventable through simple public health approaches.

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Background: Early diagnosis, prompt treatment, and disease containment are vital measures in the management of Lassa fever (LF), a lethal and contagious arenaviral hemorrhagic disease prevalent in West Africa. Lassa Virus (LAV)-specific Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) test, the gold standard for diagnosis, is unavailable in most centers. Serologic detection of LAV IgM is a more accessible tool and this work was to investigate its adequacy as an early marker for LF. Patients and Methods: A prospective case-control study conducted July 2007-March 2011 in a tertiary referral health center in Nigeria. Blood samples for test and control were evaluated for Lassa specific antigens and IgM using RT-PCR (primers S36+ and LVS 339) and indirect ELISA (Lassa Nucleo-protein (NP)-Antigen) respectively. RT-PCR outcome was used as standard to test for the sensitivity and specificity of IgM. Results: Of the 37 confirmed cases of LF infection by RT-PCR, 21 (57%) were IgM positive. Amongst the 35 confirmed negative cases (control group), eight were IgM positive. The diagnostic sensitivity and specificity of the IgM assay were 57% and 77% respectively. The negative and positive predictive values of the IgM serological assay were 63% and 72%, respectively, while the efficiency of the test was 67%. Conclusion: The specificity and sensitivity of IgM as a screening tool for early detection of LF appear weak and, hence, the need for a reliable LF "rapid screening kit" since RT-PCR is unavailable in most centers. In the interim, "high clinical index of suspicion," irrespective of IgM status, requires urgent referral to confirmatory centers.

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Background: The knowledge of medical ethics is essential for health care practitioners worldwide. The main objective of this study was to evaluate the knowledge of medical doctors in a tertiary care hospital in Nigeria in the area of medical ethics. Materials and Methods: A cross-sectional questionnaire-based study involving 250 medical doctors of different levels was carried out. The questionnaire, apart from the bio-data, also sought information on undergraduate and postgraduate training in medical ethics, knowledge about the principles of biomedical ethics and the ethical dilemmas encountered in daily medical practice. Results: One hundred and ninety (190) respondents returned the filled questionnaire representing a response rate of 76%. One hundred and fifty-two respondents (80%) have had some sort of medical ethics education during their undergraduate level in the medical education. The median duration of formal training or exposure to medical ethics education was 3.00 hours (range: 0-15). One hundred and twenty-nine respondents have read at least once the code of medical ethics of the Medical and Dental Council of Nigeria while 127 (66.8%) have some general knowledge of the principles of biomedical ethics. The breakdown of the identified ethical dilemmas shows that discharge against medical advice was the most identified by the respondents (69.3%) followed by religious/cultural issues (56.6%) while confidentiality was recognized by 53.4%. Conclusion: The knowledge of medical ethics by Nigerian medical doctors is grossly inadequate. There is an urgent need for enhancement of the teaching of the discipline at both undergraduate and postgraduate levels in Nigeria.

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Background: The objective is to study intracranial complications of HIV/AIDS using brain-computed tomography in patients who presented with neurological features before the advent of subsidized HIV/AIDS treatment program with highly active antiretroviral therapy (HAART) in Nigeria. Materials and Methods: Retrospective study of patients' records retrieved from radiology and medical records departments of the hospital. The studied patients had HIV/AIDS and presented with neurological features and underwent CT scan. Results: A total of 36 patients who tested positive for HIV and who presented with neurological features suspected to be complications of AIDS were examined with CT scan. They consisted of 24 male and 12 females. The male to female ratio was 2:1. The age of the patients ranged from 27 to 45 years. Seventeen patients (47.2%) were aged 30-34 years. Twenty-four patients (60%) were single while 12 (40%) were married. Twenty-seven patients (75%) were infected with HIV 1 and 2, five patients (13.9%) were infected only with HIV-1 while four were infected with only HIV-2. Presenting neurological complaints include left hemiplegia 13 (36.1%), right hemiplegia 6 (16.7%), coma 7 (19.4%), memory loss/dementia complex 5 (13.9%), convulsion with coma 2 (5.6%), left hemi-pariesis with memory loss 2 (5.6%), and staggering gait 1 (2.8%). The findings in CT scan include infarcts-like lesions 14 (38.9%), multiple ring-enhancing lesions 7 (19.4%), cerebral atrophy 5 (13.9%), multiple nodular lesions 4 (11.1%), acute intracerebral hemorrhage 3 (8.3%), cerebral hemiatrophy 2 (5.6%), and solitary ring-enhancing lesions 1 (2.8%). Eight patients with single or multiple ring enhancing lesions were treated with empirical treatment for toxoplasmosis but only three (37.5%) made full recovery. Conclusion: Brain CT scan showed extensive structural damages in patients with HIV/AIDS who were not treated with HAART. Out-of-pocket payment for investigations and treatment and absence of HAART could be partly responsible for high rate of advanced disease.

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Background: Primary health care (PHC) physicians manage most patients with osteoarthritis (OA). In Saudi Arabia, very little is known about the management of OA by PHC physicians. This study aims to assess knowledge, attitude, and practice of PHC physicians in the management of OA. Materials and Methods: During October 2011, a cross-sectional survey was conducted on physicians who were practicing at the primary care centers in AlJouf province of Saudi Arabia. The physicians were asked to fill a valid questionnaire comprised of 35 closed ended questions, 6 items about their socio-demographic characters, and a very well modified 29 questions about their knowledge, attitude, and practice in the management of OA. Data was processed and analysed using SPSS (version 16) program, the level of significance was set as Chi-square test was applied for analysis of categorical data. Results: Response rate (77/90=85.6% yielded 77 questionnaires for analysis. The mean ± SD age of respondents was 38 (12.3) years. Majority of the physicians surveyed, 58 (75.3%) considered OA as a common health problem in Saudi Arabia. Only 28 (36.4%) physicians surveyed will achieve continuity of care for OA, whereas more than half (n=44; 57.1%) will refer OA immediately or later to the specialists. The proportion of continuity of care for OA among physicians with diplomas was more than that found among general practitioner (57.1% vs 34.1%; <.05). Only 30 (39%) of physicians appeared to know the radiographic changes associated with OA. 21 (27.3%) of physicians manage an average of 5-10 patients with OA per week. Almost 3/4 ^th of the physicians ( n=57; 74%) prescribe NSAIDs, and only (n=14; 18.2%) prescribe acetaminophen for OA. Less than 1/5 ^th of the physicians surveyed ( n=12; 15.6%) prescribe herbal medicine for OA. Almost all physicians subscribe to regular training programs about OA. Conclusions: Appropriate attitude with lack of knowledge was found, and practice of our physicians with regards to this disorder appeared inappropriate. More education focusing on the disorder is recommended.

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Background: Co-infection of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) is common as both viruses share common routes of transmission. HIV significantly affects the natural history of HBV, hence the need to determine the prevalence of co-infection. Materials and Methods: This was a retrospective study between 2005 and 2009, in which is a total of 2018 subjects who reported at our University Teaching Hospital blood bank and human immunodeficiency virus clinic were studied. Hepatitis B surface antigen (HBsAg) was tested for using a one step lateral flow rapid chromatographic immunoassay (Acumen labs and diagnostic centre, Bangalore, India) and HIV 1/2 was tested using two kits, Determine (made by Abbot, Japan for Inverness Medical, Japan). Results: A total of 2018 subjects were studied out of which 1176 were HIV positive (964 males and 212 females) and 842 (334 males and 508 females) were negative. The prevalence of HBsAg positivity in the study population was 5.9%. It was 6.3% and 5.6% in the HIV-infected and un-infected population, respectively. Although the prevalence was higher in those who are HIV infected, the difference was not statistically significant ( P=0.52). Males who were HIV positive were found to be more likely to have co-infection than females (8.7% vs. 4.2%, P=0.02, OR=1.917). Conclusion: This study showed that in south-eastern Nigeria, infection with HBV is relatively common in both HIV-infected and un-infected individuals. Routine screening for HBV should be done for all HIV positive individuals.

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Background: A carefully performed facial analysis can serve as a strong foundation for successful facial reconstructive and plastic surgeries, rhinoplasty or orthodontics. Aim: The purpose of this study is to determine the facial features and qualities of the Igbo Nigerian adult male using photometry. Materials and Methods: One hundred and twenty subjects aged between 18 and 28 years were studied at the Anambra State University, Uli, Nigeria. The frontal and right lateral view photographs of their faces were taken and traced out on tracing papers. On these, two vertical distances, nasion to subnasal and subnasale to menton, and four angles, nasofrontal (NF), nasofacial, nasomental (NM) and mentocervical, were measured. Results: The result showed that the Igbo Nigerian adult male had a middle face that was shorter than the lower one (41.76% vs.58.24%), a moderate glabella (NF=133.97°), a projected nose (NM=38.68°) and a less prominent chin (NM=125.87°). Conclusion: This study is very important in medical practice as it can be used to compare the pre- and post-operative results of plastic surgery and other related surgeries of the face.

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Background: Atherosclerosis is one of the common causes of morbidity and mortality, in postmenopausal women. Homocysteine, a sulfur-containing amino acid product of methionine metabolism, may play an important role in the development of cardiovascular diseases. This study was designed to evaluate the relationship between intra-operative grading of coronary artery atherosclerosis and homocysteine level in postmenopausal women who were candidates for off-pump coronary bypass graft surgery (CABG). Materials and Methods: In this cross-sectional study, 136 postmenopausal women (with the mean age of 54.9±4 years) were enrolled as candidates for elective off-pump CABG. For each patient the extent and severity of atherosclerosis was assessed by intra-operative grading (IOG) and Gensini score system. Total homocysteine was determined with ELISA method after 12 hours of fasting. The patients were classified into two groups (diffuse vs. discrete) based on intra-operative findings. Finally the relation between age, IOG, and Gensini score with homocysteine level was assessed by ANOVA, T-test, and Tukey HSD test. Results: There was a positive correlation between intra-operative grading and homocysteine level in both groups (P=0.005). The association between Gensini score and homocysteine was significant in higher levels of hyperhomocysteinemia (P<0.05). The homocysteine level also increased with age; therefore, patients were classified into two categories (<54 years and ≥54 years) by Levene test. Statistical analysis indicated no relationship between IOG, Gensini score, and homocysteine level in the patients who were younger than 54 years (P=0.3, P=0.2), but significant relation was detected between IOG, Gensini score, and homocysteine in the patients who were older than 54 years with diffuse or discrete lesions in coronary arteries (P=0.001, P=0.001). Conclusion: According to our findings, homocysteine level increases in post-menopausal women that can be an important risk factor for atherosclerosis and cardiovascular diseases.

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Background The knowledge of the root canal morphology and the possible anatomical variations of mandibular premolars are important for the successful endodontic treatment of such cases. The aim of this study was to investigate the presence of two or three root canals in extracted first and second mandibular premolars which were collected from health centers in Syria. Materials and Methods: One hundred and ten human mandibular premolars (70 first premolars and 40 second premolars) with fully developed roots were investigated. After access the cavity of the teeth, the root canals were explored and radiographs were taken. Results: Premolars with one canal were found in 87% of cases (53% first premolar and 34% second premolar) and premolars with two canals were found in 12% of cases (10% first premolar and 2% second premolar). There was just one case (1%) where a first premolar had three canals. These differences were statistically significant with P<0.05. Conclusion: Clinicians should be aware of the anatomical variation in the mandibular premolars and be able to apply this knowledge in radiographical and clinical interpretation.

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Endometriosis is the presence of endometrial tissue outside the Uterus. The true incidence of endometriosis is not really known, but it is believed that 10-15% of all women in their reproductive age will develop endometriosis and 25-35% of all women who are infertile have endometriosis. Incisional endometriosis (IE) is a rare entity reported in 0.03-1.08% of women following obstetric or gynaecologic surgeries. Most cases reported in literature have appeared after caesarean sections and were often clinically mistaken for hernia, abscess, suture granuloma or lipoma. The diagnosis is frequently made only after excision of the diseased tissue. A case report of a patient with a painful troublesome scar after a caesarean section is presented.

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Total laparoscopic hysterectomy (TLH) is an advanced gynecological laparoscopic procedure that is widely performed in the developed world. However, its feasibility in resource-poor settings is hampered by obvious lack of equipments and/or skilled personnel. Indeed, TLH has never been reported from any Nigerian hospital. We present a 50-year-old multipara scheduled for hysterectomy on account of pre-malignant disease of the cervix, who had TLH with bilateral salpingo-oophorectomy in the Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, southwestern Nigeria and was discharged home on the first post-operative day. She was seen in the gynecology clinic a week later in stable condition and she was highly pleased with the outcome of her surgery. This case is presented to highlight the attainability of operative gynecological laparoscopy, including advanced procedures like TLH in a resource-constrained setting, through the employment of adequate local adaptation and clever improvisation.

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Background: The head and neck (H/N) is a common site for childhood cancers. This study examined all cases of H/N childhood cancers diagnosed in a major teaching hospital in Nigeria over 18 years to determine patterns of broad lineage cancer groups. Materials and Methods: Primary pediatric childhood malignancies diagnosed between 1990 and 2008 were analysed. Logistic regression models were fitted to determine significant clinical correlates of childhood cancer. Results: Lymphomas were the commonest cancers (49.5%). After controlling for site and age, there was no significant difference in the incidence of Burkitt's lymphoma (BL) by sex ( P=0.423). The jaw bones (mandible and maxilla) were the commonest sites in the H/N for involvement of BL, with over 20 times the odds of occurrence when compared to other non-jaw sites of the H/N region (Adjusted Odds Ratio [AOR]=21.41, P<0.001). Among the jaw bones, there was no significant difference in the occurrence of BL ( P=0.860). Conclusion: Lymphomas are the commonest cancer group among children in Nigeria. In resource limited settings where diagnoses depend majorly on clinical intuition, an awareness of predictors of a disease can shorten the time spent on arriving at a working diagnosis and guide the immediate choice of investigations and treatment.

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Background: HIV infection in adolescents is promoted by sexual risky behaviours and nonconsensual sex. Nonconsensual sex ranges from forced sex/rape, unwanted touch and inducement by gifts. This study was designed to determine the prevalence of nonconsensual sex (NCS) and HIV infection in adolescents. Materials and Methods: Eight hundred and eighty three adolescents from 10 secondary schools were randomly selected and given a questionnaire to fill. All had group pre-test counseling had HIV screening. HIV positive subjects had a confirmatory test done after individual post-test counseling. Ethical clearance was received from the relevant authorities and persons. Results: Of the 883 students, 169 (19.2%) were sexually experienced. Of which 101/169 (59.8%) were males and 40.2% females. Mean age at first sexual debut was 14.4±2.6 years; males 13.3±2.7 years and females 14.6±3.2 years, P=0.006. Seventy three of 127 respondents (57.5%) indicated consensual sex and 42.5% (54/127) indicated NCS. Of the 54 subjects, 74% were females and 22% males. Mean age at first sex in NCS was 13.5 + 3.4 yrs; males, 12.5±2.9 yr in NCS and 14±2.6 in consensual, P=0.045; females 14±3.5 in NCS and 16.5±1.2 in consensual P=0.02. Circumstances of sex showed 59.3% were forced sex or rape, 7.4% was following gifts. Over 70% of NCS group use no form of protection. In the population studied 9/883 (1.02%) were HIV positive. Among the sexually experienced HIV prevalence was 2.4% (4/169), and 3.7% (2/54) among NCS. Conclusion: Prevalence of NCS is high, occurring at an earlier age and associated with lack of condom use as well as a higher HIV prevalence.

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