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  • Medeiros Parks posted an update 2 days, 10 hours ago

    Recent dyspnea, worsening at the end of pregnancy and postpartum, should suggest a cardiac complication. In presence of chest pain, aortic dissection should be considered with the same degree of emergency as myocardial infarction or pulmonary embolism. Cardiac ultrasonography, chest CT, Nt-proBNP and troponin should be considered in case of chest pain or recent dyspnea. Women with cardiac symptoms should be referred to an emergency department (not necessarily to the local maternity) for a complete cardiovascular check-up.

    To describe, for the 2013-2015period, the frequency, causes, risk factors, adequacy of care and preventability of maternal deaths in France.

    Data from the National Confidential Enquiry into Maternal Deaths for 2013-2015.

    For the period 2013-2015, 262maternal deaths occurred in France, one every four days, i.e a maternal mortality ratio of 10.8per 100,000live births (95% CI 9.5-12.1), stable compared to 2010-2012. Compared to women aged 25-29, the risk is multiplied by 1.9for women aged 30-34, by 3for women aged 35-39and by 4for women aged 40and over. Obese women are twice as frequent among maternal deaths (24%) than in the general population of parturients (11%). There are territorial disparities -the maternal mortality ratio in the French overseas departments is 4times higher than in metropolitan France-, and social disparities-the mortality of migrant women remains higher than that of women born in France, particularly for women born in sub-Saharan Africa whose risk is 2.5times higher than that nativeduring pregnancy or in the year following childbirth. In order to go further in understanding the mechanisms involved, and to identify precise avenues for prevention, it is necessary to analyse in detail the stories of each maternal death in order to identify the opportunities for improvement repeatedly found in the series of deaths. This is what the following articles in this issue propose, with an analysis by cause of death.Between 2013 and 2015, 20 maternal deaths were associated with stroke. Stroke was the main cause of death in 16 cases (12 hemorrhagic strokes [75%], 1 ischemic stroke and three cerebral thrombophlebitis). In the four other cases, the stroke was a complication of another pathology. The 16 deaths directly related to stroke account for 5.7% of all maternal deaths (maternal mortality ratio of 0.7/100,000 live births vs. 0.9/100,000 over the period 2010-2012, NS). read more Stroke occurred during pregnancy in 8 cases (50%). Three patients died without giving birth and the 5 others gave birth by emergency caesarean section. In the remaining eight cases (50%), stroke occurred between day 0 and day 54 during the post-partum period. The mean age was 35.5 years, with 9 women being more than 35 years old (56%). One or more factors of sub-optimal care were present in 28% of the cases, and 8% of deaths were considered possibly or probably preventable. The last four strokes were associated with another pathology (eclampsia [n=2], hepatic cirrhosis [n=1], possible complication of spinal anesthesia [n=1]).Between 2013 and 2015, six maternal deaths were due to hypertensive disorders. During this period, the maternal mortality ratio was 0.2/100,000 live births. Hypertensive disorders were responsible for 2% of maternal deaths in France and for 5% of direct maternal mortality. All these deaths happened after the delivery. Mode of delivery was a cesarean section when the hypertensive complication started before the delivery (4/6; 67%). Three had DIC during the immediate post-partum. Five women were under 35 years old. Only one had a BMI over 30. Four out of six patients were primiparous. One woman was Afro-Caribbean. Medical care was estimated non-optimal in 100% of the cases. In three cases, it was prenatal care and in three cases it was obstetrical care during delivery; anesthesia and intensive care were suboptimal in five cases. Eighty percent of these deaths seemed to be preventable. The main causes of suboptimal management were inappropriate or insufficient obstetrical and/or anesthetic treatments, and delayed optimal treatment. The analysis of these maternal deaths offers the opportunity to stress major points to optimize medical management in case of hypertensive disorders during pregnancy such as management of eclampsia (use of magnesium sulfate) or recognition of DIC when HELLP syndrome is diagnosed.Pregnancy represents a period of significant psychological vulnerability for women. During the perinatal period, twenty percent of them would present with mental disorders ranging from anxiety to depression. In those with pre-existing mental illness, the risk of acute decompensation is significant. For this reason, the World Health Organization recommends classifying suicides occurring during pregnancy and up to one-year post-partum as maternal deaths. Thus, between 2013 and 2015, 35 maternal suicides occurred in France, representing a maternal mortality ratio of 14 per 100,000 live births (95% CI 1.0-2.0). By constituting 13.4% of all maternal deaths for the period, this group is the one of the 2 leading causes of maternal mortality. A total of 23% occurred in the first 42 days post-partum, and 77% between 43 days and one year after birth. 33.3% of the suicidal mothers had a known psychiatric history and 30.3% had a history of psychiatric care, unknown to obstetrical teams. Non-optimal care was present in 72% of cases with 91 % of suicides were potentially preventable, preventability factors beinga lack of multidisciplinary care and inadequate interaction between the patient and the care system. Strong messages were drawn from the analysis of these cases to optimize care improve knowledge of the psychiatric history from the time of enrolment in maternity units, improve the identification of warning symptoms and the use of the psychologist and/or psychiatrist, set up a specific care pathway and multidisciplinary collaboration in case of known psychiatric disease.Chronic wounds are still an intractable medical problem for both clinicians and researchers and cause a substantial social and medical burden. Current clinical approaches can only manage wounds but have limited capacity to promote the regeneration of chronic wounds. As a type of natural nanovesicle, extracellular vesicles (EVs) from multiple cell types (e.g., stem cells, immune cells, and skin cells) have been shown to participate in all stages of skin wound healing including inflammation, proliferation, and remodeling, and display beneficial roles in promoting wound repair. Moreover, EVs can be further re-engineered with genetic/chemical or scaffold material-based strategies for enhanced skin regeneration. In this review, we provide an overview of EV biology and discuss the current findings regarding the roles of EVs in chronic wound healing, particularly in immune regulation, cell proliferation and migration, angiogenesis, and extracellular matrix remodeling, as well as the therapeutic effects of EVs on chronic wounds by genetic modification, in combination with functionalized biomaterials, and as drug carriers.

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