Emergency C-sections are performed for various reasons. This is a case report of emergency C-section performed due to fetal distress. This is a classic case report which emphasizes the importance of managing emergency...Emergency C-sections are performed for various reasons. This is a case report of emergency C-section performed due to fetal distress. This is a classic case report which emphasizes the importance of managing emergency C-sections according to international standards and acknowledges co-operation of obstetrician and anesthesiologist. We reviewed literature about emergency C-sections and discussed sensitive time intervals, types of anesthesia and neonatal resuscitation.展开更多
Background: Multi-scar uterus is a uterus with two or more scars due to surgery or trauma. Objective: The aim was to compare the maternal and fetal prognosis of emergency C-sections of bi-scar uteruses to those of ute...Background: Multi-scar uterus is a uterus with two or more scars due to surgery or trauma. Objective: The aim was to compare the maternal and fetal prognosis of emergency C-sections of bi-scar uteruses to those of uteruses with at least 3 scars at the Nianankoro Fomba Hospital in Segou. Materials and Methods: It was a descriptive and analytical cross-sectional study with prospective data collection over a 24-month period from March 20, 2018, to March 20, 2020. Results: In 2 years, we collected 103 emergency C-sections for multi-scar uterus out of 1198 C-sections with a frequency of 8.6%. The age group of 20 to 35 years was the most represented with 86.4%. The bi-scar uteruses were the most frequent with 77.7%. In 71.8% of cases, the C-section was performed during the latent phase of labor. The C-section was performed under loco-regional anesthesia in 89.3% of cases. Difficulties in hemostasis and bladder injury were the most frequent intraoperative accidents. Surgical site infection was the main postoperative complication. No maternal deaths were recorded. The perinatal prognosis was marked by 4.3% fresh stillbirths in bi-scar uterus against 3.7% in three or more scar uteruses and including 2 fresh stillbirths and 1 macerated. We did not record any early neonatal deaths after C-section. Conclusion: The frequency of emergency C-sections in patients with a multi-scar uterus remains very high in our hospital. A better awareness of the patients, their spouses and all the actors involved in the management of pregnancies and childbirth, can contribute to curb this trend.展开更多
Taking data from the China Fertility Survey 2017 for nine provinces in southwestern and south-central China,we calculated differences in C-section rates among women of different ages,and with different types of hukou ...Taking data from the China Fertility Survey 2017 for nine provinces in southwestern and south-central China,we calculated differences in C-section rates among women of different ages,and with different types of hukou and different levels of educa-tion.We used the Cox proportional hazards model and a binary logistic regression method to examine the impact of C-section at the first birth on the intention of hav-ing a second child and actually giving birth to a second child under the Universal Two-child Policy.This study comes to the following conclusions:(1)the C-section rate is generally high among women,especially among those who are older,have non-agricultural hukou,or have a junior college or above education level;(2)sim-ilar to the research findings of scholars in other countries,women having C-sec-tion at first birth are 16-20%less likely to have a second child than women having no C-section at first birth;and(3)women having C-section at first birth are less inclined to have a second child.展开更多
实现未来输电断面与相似历史断面的辨识,可以为未来输电断面控制措施的制定提供指导,对保障电力系统的安全稳定运行具有重大意义。然而,现有方法对断面关键特征筛选及样本相似性度量方法选取的考虑还不充分,因此,该文提出一种嵌入多尺...实现未来输电断面与相似历史断面的辨识,可以为未来输电断面控制措施的制定提供指导,对保障电力系统的安全稳定运行具有重大意义。然而,现有方法对断面关键特征筛选及样本相似性度量方法选取的考虑还不充分,因此,该文提出一种嵌入多尺度关键特征信息的改进模糊C均值(fuzzy C-means,FCM)聚类方法进行断面相似性辨识。首先,为得到更多方面的断面特征样本,建立分层决策模型,筛选及改进电网基础特征量;然后,提出考虑热稳定和暂态功角稳定约束的断面极限传输容量(total transfer capability,TTC)计算模型求取TTC;其次,提出综合考虑样本形态与数值两类特征的自适应FCM聚类用于断面相似性辨识,通过多指标评价体系自适应选定最优聚类个数,提升算法客观性,通过引入余弦距离考虑样本形态特征,提升算法可信性;最后,以IEEE 39节点系统和某地实际电网为例,验证所提方法的有效性。展开更多
文摘Emergency C-sections are performed for various reasons. This is a case report of emergency C-section performed due to fetal distress. This is a classic case report which emphasizes the importance of managing emergency C-sections according to international standards and acknowledges co-operation of obstetrician and anesthesiologist. We reviewed literature about emergency C-sections and discussed sensitive time intervals, types of anesthesia and neonatal resuscitation.
文摘Background: Multi-scar uterus is a uterus with two or more scars due to surgery or trauma. Objective: The aim was to compare the maternal and fetal prognosis of emergency C-sections of bi-scar uteruses to those of uteruses with at least 3 scars at the Nianankoro Fomba Hospital in Segou. Materials and Methods: It was a descriptive and analytical cross-sectional study with prospective data collection over a 24-month period from March 20, 2018, to March 20, 2020. Results: In 2 years, we collected 103 emergency C-sections for multi-scar uterus out of 1198 C-sections with a frequency of 8.6%. The age group of 20 to 35 years was the most represented with 86.4%. The bi-scar uteruses were the most frequent with 77.7%. In 71.8% of cases, the C-section was performed during the latent phase of labor. The C-section was performed under loco-regional anesthesia in 89.3% of cases. Difficulties in hemostasis and bladder injury were the most frequent intraoperative accidents. Surgical site infection was the main postoperative complication. No maternal deaths were recorded. The perinatal prognosis was marked by 4.3% fresh stillbirths in bi-scar uterus against 3.7% in three or more scar uteruses and including 2 fresh stillbirths and 1 macerated. We did not record any early neonatal deaths after C-section. Conclusion: The frequency of emergency C-sections in patients with a multi-scar uterus remains very high in our hospital. A better awareness of the patients, their spouses and all the actors involved in the management of pregnancies and childbirth, can contribute to curb this trend.
文摘Taking data from the China Fertility Survey 2017 for nine provinces in southwestern and south-central China,we calculated differences in C-section rates among women of different ages,and with different types of hukou and different levels of educa-tion.We used the Cox proportional hazards model and a binary logistic regression method to examine the impact of C-section at the first birth on the intention of hav-ing a second child and actually giving birth to a second child under the Universal Two-child Policy.This study comes to the following conclusions:(1)the C-section rate is generally high among women,especially among those who are older,have non-agricultural hukou,or have a junior college or above education level;(2)sim-ilar to the research findings of scholars in other countries,women having C-sec-tion at first birth are 16-20%less likely to have a second child than women having no C-section at first birth;and(3)women having C-section at first birth are less inclined to have a second child.
文摘实现未来输电断面与相似历史断面的辨识,可以为未来输电断面控制措施的制定提供指导,对保障电力系统的安全稳定运行具有重大意义。然而,现有方法对断面关键特征筛选及样本相似性度量方法选取的考虑还不充分,因此,该文提出一种嵌入多尺度关键特征信息的改进模糊C均值(fuzzy C-means,FCM)聚类方法进行断面相似性辨识。首先,为得到更多方面的断面特征样本,建立分层决策模型,筛选及改进电网基础特征量;然后,提出考虑热稳定和暂态功角稳定约束的断面极限传输容量(total transfer capability,TTC)计算模型求取TTC;其次,提出综合考虑样本形态与数值两类特征的自适应FCM聚类用于断面相似性辨识,通过多指标评价体系自适应选定最优聚类个数,提升算法客观性,通过引入余弦距离考虑样本形态特征,提升算法可信性;最后,以IEEE 39节点系统和某地实际电网为例,验证所提方法的有效性。
