Maternal and perinatal outcome of eclampsia in tertiary health institution in Southeast Nigeria

Objective: To evaluate the maternal and perinatal outcome in patients with eclampsia at Nnamdi-Azikiwe-University-Teaching-Hospital (NAUTH), Nnewi, Nigeria. Methods: A retrospective study of cases of eclampsia managed at NAUTH over a 10 year period – 1st January, 2000 to 31st December, 2009. Maternal outcome was measured in terms of complications and maternal death. Foetal outcome was assessed in terms of low birth weight, pre-term births, low apgar score, and perinatal deaths. Results: There were 57 cases of eclampsia out of a total of 6,262 deliveries within the study period, giving a prevalence of 0.91%. Majority, 71.7%, had caesarean section. There were 17.4% maternal deaths mainly from pulmonary oedema, 6 (13.0%), acute renal failure, 4 (8.7%), and coagulopathy, 3 (6.5%). Perinatal deaths were 25.5% as a result of prematurity, 42 (82.4%), and low birth weight, 36 (70.6%). Twenty-one (41.2%) of the new born had Apgar score of less than seven at 5?min while 13.0% were severely asphyxiated. Conclusion: Eclampsia was associated with high maternal and perinatal morbidity and mortality in this study. There is need to review existing protocol on eclampsia management with emphasis on appropriate health education of pregnant mothers, good antenatal care, early diagnosis of pre-eclampsia with prompt treatment.     

Acceptability of caesarean delivery to antenatal patients in a tertiary health facility in south-west Nigeria.

Today, caesarean section is one of the most commonly performed surgical procedures the world over. Despite the well-documented record of safety, the strong aversion of women in sub-Saharan Africa to the procedure, especially in the presence of life-threatening indications, is of great concern to many obstetricians. This cross-sectional study, aimed at assessing the knowledge of the patients about caesarean section and its acceptability as mode of delivery, was conducted among antenatal patients at a University Teaching Hospital in south-west Nigeria. A pre-tested structured questionnaire was used. Among the 201 patients surveyed, a high level of acceptability of caesarean section (85%) was found. However, 96.5% of those who would accept would give consent only after seeking the opinion of other people, especially their husbands. Previous major surgery and caesarean section were found to favour its acceptability, while age, tribe, marital status and the woman or her husband's educational status did not have any influence. With proper health education, especially during antenatal care, many more women would find caesarean section acceptable.     

Estimating risk factors for spontaneous preterm delivery in teen pregnancies

Purpose

Our aim was to estimate the perinatal risk factors associated with spontaneous preterm birth in the teenage parturient.

Methods

In a cohort study of all nulliparous teen (≤18-year old) deliveries over a 4-year period at one institution, we identified all cases of spontaneous preterm birth as defined by non-indicated delivery prior to 37 weeks of gestation. Analysis was performed using Fisher’s exact, Student t test and logistic regression modeling.

Results

Of the 650 included teen deliveries, 88 (14 %) cases of spontaneous preterm birth were identified. Teenage mothers with spontaneous preterm birth had a significantly lower body mass index (BMI) (27.2 ± 6.4 vs. 31.0 ± 6.2, p = 0.0001) and had lower gestational weight gain (14.4 ± 6.6 vs. 11.2 ± 5.0 kg, p = 0.0001) than those mothers with uncomplicated term births. In fact, a normal prepregnancy BMI (<25 kg/m²) placed the teen at elevated risk for spontaneous preterm birth (OR 3.35, 95 % CI 1.98–5.64), while prepregnancy obesity (30–35 kg/m²) was protective (OR 0.26, 95 % CI 0.12–0.58). Controlling for potential confounders such as race, tobacco or illicit drug use, late prenatal care and sexually transmitted infections did not attenuate the above findings.

Conclusions

Higher prepregnancy BMI, especially obesity, appears to be protective against spontaneous preterm birth in the nulliparous teen parturient. Further studies confirming this finding and investigation of potential underlying mechanisms of this association are warranted.

     

Vaginal birth after one previous caesarean section in a tertiary institution in Nigeria.

Vaginal birth after one previous lower segment caesarean section represents one of the most significant and challenging issues in obstetric practice. A 5-year retrospective study was carried out at the University of Benin Teaching Hospital between January 1999 and December 2003, to determine the incidence, the maternal and fetal outcome following vaginal delivery after one previous caesarean section with a view to evaluating its safety and efficacy. There were 5234 deliveries, with 395 cases of one previous caesarean section, giving an incidence of 7.5%. The incidences of emergency caesarean section, elective caesarean section and spontaneous vaginal delivery following trial of vaginal delivery were 34.7%, 9.4% and 48.1%, respectively. During the study period there were 1317 cases of caesarean section, giving an incidence of 25.2% caesarean section rate. The incidence of one previous section among all caesarean section births was 30%. The major morbidity following vaginal delivery was uterine rupture with an incidence of 1.5% and hysterectomy of 0.8%. Three of the uterine ruptures occurred before admission because the patients laboured at home. One maternal death occurred as a result of uterine rupture and postpartum haemorrhage, giving a maternal mortality ratio of 19/100,000 and a case fatality rate of 0.3%. The corrected perinatal mortality rate was 15.2/1000, mainly from obstructed labour, abruptio placenta and fetal distress. Both maternal and fetal mortalities from vaginal birth after one previous section were significantly less than the respective overall maternal and fetal mortality from the institution. The 1-minute apgar score of babies delivered by elective section was significantly (P < 0.001) higher than the apgar score of babies delivered by emergency section and vaginally. There was only one patient with wound dehiscence at elective section without associated perinatal death. Vaginal delivery following caesarean section is relatively safe. However, women in developing countries will continue to require counselling to counter the myths of aversion to operative delivery even at the expense of losing their lives. Our hospitals should have adequate monitoring equipment for high-risk pregnancies so that patients and their babies can be assured of survival.     

Assessment of delays in receiving delivery care at a tertiary healthcare delivery centre in Nigeria.

This study reviewed the causes of delays when patients were admitted with obstetric emergencies in Ife-Ife, Nigeria.     

Incidence and risk factors of postnatal growth restriction in preterm infants

Aim: Preterm infants are often significantly underweight at the time of hospital discharge. Growth impairment during early infancy can have permanent detrimental effects. We aimed to evaluate the incidence and risk factors of postnatal growth restriction (PNGR) in preterm infants.

Methods: This prospective study included 124 preterm infants in neonatal intensive care unit between January 2015 and June 2016.

Results: Of 140 preterm infants screened, postnatal growth retardation was detected in 46 babies (37%). Low gestational age was independent risk factors for PNGR.

Conclusion: Clinicians should be aware of the presence of this morbidity when caring for preterm infants and to provide optimal enteral nutrition.     

The preterm breech delivery in Zaria, northern Nigeria.

The preterm breech occurred in 31.21% of singleton breech presentations in a prospective study at Ahmadu Bello University Teaching Hospital (ABUTH), Zaria, Nigeria. The uncorrected perinatal mortality of 670.5 per 1000 deliveries was 1.7 times that for term breech presentations. Failure to book for antenatal care (50.94%), admission of cases in the second stage of labor (21.84%) and intrauterine fetal death on admission (38.64%) were associated factors of the high perinatal mortality. The mortality was extremely high in the very low birthweight fetus (less than 1500 g) delivered vaginally. Moreover, the cesarean section rate was associated with a 2.4 times higher perinatal morbidity and mortality rates than vaginal delivery.     

Risk factors for recurrent preterm delivery

OBJECTIVE: To identify risk factors for recurrent preterm delivery among primiparous women with previous preterm delivery. STUDY DESIGN: A retrospective case-control study was designed: 152 primiparous women who delivered preterm (22-36 weeks) were divided into two groups: 81 had a second preterm delivery (study group) and 71 had a second-term delivery (control group). Exclusion criteria were induced preterm delivery, hydramnions and multiple gestations. RESULTS: Comparing second preterm delivery before 34 weeks (n = 36) to the second delivery of the control group, higher rates of hospitalization due to preterm labor were noted in the study versus the control group (52.8% versus 16.9%,P = 0.001). The interval between pregnancies was shorter in the study subgroup, before 34 weeks gestational age, versus the controls (20.1 +/-15.7 months versus 28.9 +/- 18.7 months, P = 0.011). Multiple regression analyses, adjusted for confounding variables, found the occurrence of preterm labor and short interval between pregnancies, especially up to 12 months, as independent risk factors for the recurrence of preterm delivery (OR = 4.98; P , 0.001; OR = 5.13; P = 0.007, respectively). CONCLUSION: When adjusted for confounding variables, short interval between pregnancies is an independent risk factor for recurrent preterm delivery.     

Mandated preterm delivery: its prevalence and impact at a tertiary referral center.

OBJECTIVE: To determine the prevalence and impact of mandated preterm deliveries at a tertiary referral center. METHODS: A chart review was conducted at our institution on all livebirths from 24 weeks to completion of 37 weeks' gestation between 1 January 1998 and 31 December 1999. Mandated delivery was defined as intentional intervention because of a deteriorating maternal or fetal condition. Reasons for intervention and intrapartum courses were compared with two other preterm groups (premature ruptured membranes, spontaneous labor) delivering during the same period. Statistical analyses included the Student t test, univariate ANOVA, X2 test and Mann-Whitney test. RESULTS: A total of 894 pregnancies delivered preterm, with 132 (14.8%) being mandated. Primary reasons for mandated delivery included severe pre-eclampsia (69.0%), vaginal bleeding (11.4%), deteriorating maternal illness (10.6%), worsening fetal growth restriction (6.1%) or major fetal malformation (3.0%). Delivery at less than 34 weeks was more common in the mandated group (68.9%) than in the ruptured membranes group (41.2%, p < 0.005) or in the spontaneous labor group (46.5%; p < 0.01). Cesarean section rates were higher in the mandated group (69.7%) than in the ruptured membranes group (18.3%; p <0.001) or in the spontaneous labor group (21.5%; p < 0.001). The presence of an unfavorable cervix, unsuccessful trial of labor, non-cephalic fetal presentation, or fetal intolerance of labor explained the high rate of surgery. CONCLUSIONS: Conditions mandating delivery accounted for 14.8% of all preterm births. Mandated delivery is associated with a greater need for delivery before 34 weeks, often by Cesarean section.     

Incidence of and socio-biologic risk factors for spontaneous preterm birth in HIV positive Nigerian women

ABSTRACT: BACKGROUND: Recent studies have identified HIV as a leading contributor to preterm delivery and its associated morbidity and mortality. However little or no information exists in our sub-region on this subject. Identifying the factors associated with preterm delivery in HIV positive women in our country and sub-region will not only prevent mother to child transmission of HIV virus but will also reduce the morbidity and mortality associated with prematurity and low birth weight. This study was designed to determine the incidence and risk factors for preterm delivery in HIV positive Nigerians. METHOD: The required data for this retrospective study was extracted from the data base of a cohort study of the outcome of prevention of mother to child transmission at the Nigerian Institute of Medical Research, Lagos. Only data of women that met the eligibility of spontaneous delivery after 28 weeks of gestation were included. Ethical approval was obtained from the Institution's Ethical Review Board. RESULTS: 181 women out of the 1626 eligible for inclusion into the study had spontaneous preterm delivery (11.1%). The mean birth weight was 3.1 +/- 0.4 kg, with 10.3% having LBW. Spontaneous preterm delivery was found to be significantly associated with unmarried status (cOR: 1.7;1.52-2.57), baseline CD4 count <200 cells/mm3(cOR: 1.8;1.16-2.99), presence of opportunistic infection at delivery (cOR: 2.2;1.23-3.57), multiple pregnancy (cOR 10.4; 4.24 -- 26.17), use of PI based triple ARV therapy (eOR 10.2; 5.52 -- 18.8) in the first trimester (cOR 2.5; 1.77 -- 3.52) on univariate analysis. However after multivariate analysis controlling for potential confounding variables including low birth weight, only multiple pregnancy (aOR: 8.6; CI: 6.73 -- 12.9), presence of opportunistic infection at delivery (aOR: 1.9; CI: 1.1 -- 5.7), and 1st trimester exposure to PI based triple therapy (aOR: 5.4; CI: 3.4 -- 7.8) retained their significant association with preterm delivery. CONCLUSION: The spontaneous preterm delivery rate among our cohort was 11.1%. HIV positive women with multiple pregnancies, symptomatic HIV infection at delivery and first trimester fetal exposure to PI based triple therapy were found to be at risk of spontaneous preterm delivery. Early booking and non-use of PI based triple therapy in the first trimester will significantly reduce the risk of preterm delivery.     

Genetic factors in preterm delivery

Tens of thousands of children deliver before they are full term each year. Although many social, environmental, and medical risk factors have been suggested, the etiology of a large percentage of preterm labor cases is still unknown. It has been noted for many years that preterm delivery is a condition that runs in families. Evidence concerning its aggregation among families, the recurrent nature of preterm labor, and its differing prevalence between races has led to the suggestion of a genetic cause for preterm delivery. There have been few formal studies to investigate this hypothesis. We suggest that modern molecular biology approaches can reveal the part that genes play in preterm delivery.     

Incidence and risk factors for severe perineal laceration after vaginal delivery in Japanese patients

Objective: The aim of this study was to assess the frequency of severe perineal lacerations defined as either third- or fourth-degree lacerations during normal spontaneous vaginal delivery and to evaluate potential risk factors in Japanese patients. Materials and methods: An electronic audit of the perinatal database at the Tama-Nagayama Hospital of Nippon Medical School and Yamaguchi Hospital from 1997 through 2004 was completed. Singleton vaginal vertex deliveries were analyzed for potential risk factors using univariate and multivariate logistic regression analysis. Results: From the database, 7,946 deliveries were identified, with 135 deliveries resulting in severe lacerations (1.7%). In the multivariate logistic regression analysis, severe lacerations were associated significantly with primiparous (odds ratio, 4.36; 95% CI, 2.17–9.57), oxytocin use (odds ratio, 2.19; 95% CI, 1.27–3.73), midline episiotomy (odds ratio, 4.68; 95% CI, 2.09–11.55), forceps-assisted delivery (odds ratio, 7.11; 95% CI, 1.95–20.59), vacuum-assisted delivery (odds ratio, 5.93; 95% CI, 3.38–10.36), and shorter attendant experience (odds ratio, 2.88; 95% CI, 1.12–9.81). Conclusions: The present study demonstrated that operator factors, such as midline episiotomy, oxytocin use, assisted delivery and attendant experience, are independent risk for severe perineal lacerations after vaginal delivery in Japanese patients. The results suggest that midline episiotomy and assisted vaginal delivery, especially forceps-assisted delivery should be avoided in patients who are being delivered of a first child whenever possible.     

Placenta previa and the risk of preterm delivery.

OBJECTIVES: We aimed to quantify the risk of preterm delivery and maternal and neonatal morbidities associated with placenta previa. STUDY DESIGN: We conducted a retrospective cohort study of singleton births that occurred between 1976 and 2001, examining outcomes including preterm delivery and perinatal complications. Multivariate logistic regression was used to control for potential confounders. Kaplan-Meier survival curves were constructed to compare preterm delivery in pregnancies complicated by previa vs. no previa. RESULTS: Among the 38 540 women, 230 women had previas (0.6%). Compared to controls, pregnancies with previa were significantly associated with preterm delivery prior to 28 weeks (3.5% vs. 1.3%; p = 0.003), 32 weeks (11.7% vs. 2.5%; p < 0.001), and 34 weeks (16.1% vs. 3.0%; p < 0.001) of gestation. Patients with previa were more likely to be diagnosed with postpartum hemorrhage (59.7% vs. 17.3%; p < 0.001) and to receive a blood transfusion (11.8% vs. 1.1%; p < 0.001). Survival curves demonstrate the risk of preterm delivery at each week and showed an overall higher rate of preterm delivery for patients with a placenta previa. CONCLUSIONS: Placenta previa is associated with maternal and neonatal complications, including preterm delivery and postpartum hemorrhage. These specific outcomes can be used to counsel women with previa.     

Adenomyosis and risk of preterm delivery

OBJECTIVE: To evaluate the risk of preterm delivery in patients with adenomyosis. DESIGN: A 1:2 nested case-control study. SETTING: Tertiary-care institution. POPULATION: A base cohort population of 2138 pregnant women who attended routine prenatal check-up between July 1999 and June 2005. METHODS: From this base cohort population, gravid women with singleton pregnancy who delivered prior to the completion of 37 weeks of gestation were identified and formed the study group. Singleton gravid women who had term delivery and who matched with age, body mass index, smoking, and status of previous preterm delivery were recruited concurrently and served as control group. Preterm delivery cases were further divided into spontaneous preterm delivery and preterm premature rupture of membranes (PPROM) cases. MAIN OUTCOME MEASURES: Risk analysis of preterm delivery between gravid women with and without adenomyosis. RESULTS: One-hundred and four preterm delivery case subjects and 208 control subjects were assessed. Overall, gravid women with adenomyosis were associated with significantly increased risk of preterm delivery (adjusted odds ratio 1.96, 95% CI 1.23-4.47, P=0.022). For subgroup analysis, gravid women with adenomyosis had an adjusted 1.84-fold risk of spontaneous preterm delivery (95% CI 1.32-4.31, P=0.012) and an adjusted 1.98-fold risk of PPROM (95% CI 1.39-3.15, P=0.017). CONCLUSIONS: Gravid women with adenomyosis were associated with increased risk of both spontaneous preterm delivery and PPROM. A common pathophysiological pathway may exist in these two disorders. Further in-depth biochemical and molecular studies are necessary to explore this phenomenon.     

Surgical site infection after cesarean delivery: incidence and risk factors at a US academic institution

Purpose: To identify the rate of surgical site infection (SSI) after Cesarean delivery (CD) and determine risk factors predictive for infection at a large academic institution.

Methods: This was a retrospective cohort study in women undergoing CD during 2013. SSIs were defined by Centers for Disease Control (CDC) criteria. Chi square and t-tests were used for bivariate analysis and multivariate logistic regression was used to identify SSI risk factors.

Results: In 2419 patients, the rate of SSI was 5.5% (n?=?133) with cellulitis in 4.9% (n?=?118), deep incisional infection in 0.6% (n?=?15) and intra-abdominal infection in 0.3% (n?=?7). On multivariate analysis, SSI was higher among CD for labor arrest (OR 2.4; 95%CI 1.6–3.5; p?<.001). Preterm labor (OR 2.8; 95%CI 1.3–6.0; p?=?.01) and general anesthesia (OR 4.4; 95%CI 2.0–9.8; p?=?.003) were predictive for SSI. Increasing BMI (OR 1.1; 95%CI 1.05–1.09; p?=?.02), asthma (OR 1.9; 95%CI 1.1–3.2; p?=?.02) and smoking (OR 1.9; 95%CI 1.1–3.2; p?=?.02) were associated with increased SSI.

Conclusions: Several patient and surgical variables are associated with increased rate of SSI after CD. Identification of risk factors for SSI after CD is important for targeted implementation of quality improvement measures and infection control interventions.     

Psychiatric and substance use disorders as risk factors for low birth weight and preterm delivery

OBJECTIVE: We examined the associations between psychiatric and substance use diagnoses and low birth weight (LBW), very low birth weight (VLBW), and preterm delivery among all women delivering in California hospitals during 1995. METHODS: This population-based retrospective cohort analysis used linked hospital discharge and birth certificate data for 521,490 deliveries. Logistic regression analyses were conducted to assess the associations between maternal psychiatric and substance use hospital discharge diagnoses and LBW, VLBW, and preterm delivery while controlling for maternal demographic and medical characteristics. RESULTS: Women with psychiatric diagnoses had a significantly higher risk of LBW (adjusted odds ratio [OR] 2.0; 95% confidence interval [CI] 1.7, 2.3), VLBW (OR 2.9; 95% CI 2.1, 3.9), and preterm delivery (OR 1.6; 95% CI 1.4, 1.9) compared with women without those diagnoses. Substance use diagnoses were also associated with higher risk of LBW (OR 3.7; 95% CI 3.4, 4.0), VLBW (OR 2.8; 95% CI 2.3, 3.3), and preterm delivery (OR 2.4; 95% CI 2.3, 2.6). CONCLUSION: Maternal psychiatric and substance use diagnoses were independently associated with low birth weight and preterm delivery in the population of women delivering in California in 1995. Identifying pregnant women with current psychiatric disorders and increased monitoring for preterm and low birth weight delivery among this population may be indicated.