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Up to two-thirds of RCVS cases are associated with an underlying condition or exposure, particularly vasoactive or recreational drug use, complications of pregnancy (eclampsia and pre-eclampsia), and the adjustment period following childbirth called puerperium. [1] Vasoactive drug use is found in about 50% of cases. [6]
cephal(o)-of or pertaining to the head (as a whole) Greek κεφαλή (kephalḗ), the head cephalalgy, hydrocephalus: cerat(o)-of or pertaining to the cornu; a horn Greek κέρας, κερατ-(kéras, kerat-), a horn ceratoid: cerebell(o)-of or pertaining to the cerebellum: Latin cerebellum, little brain cerebellum: cerebr(o)-
Signs and symptoms of pregnancy are common, benign conditions that result from the changes to the body that occur during pregnancy. Signs and symptoms of pregnancy typically change as pregnancy progresses, although several symptoms may be present throughout. Depending on severity, common symptoms in pregnancy can develop into complications ...
In children, numerous nonspecific signs and symptoms may be present. [7] The increased pressure leads to compression and traction of the cranial nerves, a group of nerves that arise from the brain stem and supply the face and neck. Most commonly, the abducens nerve (sixth nerve) is involved. This nerve supplies the muscle that pulls the eye ...
A study in 2012 found that the maternal plasma cell-free DNA test was also able to detect trisomy 18 (Edwards syndrome) in 100% of the cases (59/59) at a false-positive rate of 0.28%, and trisomy 13 (Patau syndrome) in 91.7% of the cases (11/12) at a false-positive rate of 0.97%.
A 2019 study published in JAMA Pediatrics, for example, found that IQ levels were slightly lower in 3- and 4-year-old children whose mothers had higher measures of fluoride in their urine when ...
In March 2021, the European Medicines Agency (EMA) announced that out of the around 20 million people who had received the Oxford–AstraZeneca COVID-19 vaccine, general blood clotting rates were normal, but that it had identified seven cases of disseminated intravascular coagulation, and eighteen cases of cerebral venous sinus thrombosis. [35]
Circulating free DNA (cfDNA) (also known as cell-free DNA) are degraded DNA fragments released to body fluids such as blood plasma, urine, cerebrospinal fluid, etc. Typical sizes of cfDNA fragments reflect chromatosome particles (~165bp), as well as multiples of nucleosomes, which protect DNA from digestion by apoptotic nucleases. [1]