Cerebral vein thrombosis: management tactics with a focus on pregnancy, the use of hormone therapy and assisted reproductive technologies.

Cerebral vein thrombosis is a rare, life-threatening condition that has now become more commonly diagnosed due to advancements in imaging techniques. Our purpose is to improve understanding of pathogenesis, diagnosis and pregnancy and IVF management in patients with a history of cerebral thrombosis. We present an overview of the modern tactics of anticoagulant therapy for cerebral thrombosis with a focus on pregnancy, the use of hormone therapy, and assisted reproductive technologies.

Catastrophic Antiphospholipid Syndrome.

Unlike classic APS, CAPS causes multiple microthrombosis due to an increased inflammatory response, known as a "thrombotic storm". CAPS typically develops after infection, trauma, or surgery and begins with the following symptoms: fever, thrombocytopenia, muscle weakness, visual and cognitive disturbances, abdominal pain, renal failure, and disseminated intravascular coagulation. Although the presence of antiphospholipid antibodies in the blood is one of the diagnostic criteria, the level of these antibodies can fluctuate significantly, which complicates the diagnostic process and can lead to erroneous interpretation of rapidly developing symptoms.

The Hemostatic System in Newborns and the Risk of Neonatal Thrombosis.

Newborns are the most vulnerable patients for thrombosis development among all children, with critically ill and premature infants being in the highest risk group. The upward trend in the rate of neonatal thrombosis could be attributed to progress in the treatment of severe neonatal conditions and the increased survival in premature babies. There are physiological differences in the hemostatic system between neonates and adults.

Hydroxychloroquine in obstetric antiphospholipid syndrome: rationale and results of an observational study of refractory cases.

Background: The current recommended therapy of obstetric antiphospholipid syndrome (APS) is a long-term anticoagulant therapy that affects the final event, namely, when the thrombosis has already occurred. Unfortunately, this schedule is not always effective and fails despite the correct risk stratification and an adequate adjusted dose.

Materials And Methods: From 2013 to 2020 we observed 217 women with antiphospholipid antibodies and obstetric morbidities who were treated with conventional treatment protocol (aspirin low doses ± LMWH).

Neonatal thrombosis.

Neonatal thromboembolism in pediatric patients is a rare but life-threatening condition mainly caused by combinations of at least 2 prothrombotic triggering risk factors such as the central venous lines, septic condition, and prematurity. Other risk factors include asphyxia, dehydration, liver dysfunction, inflammation, and maternal condition. Neonatal hemostatic system is different from one of the older children and adults.

Unusual thrombosis or pregnancy complications associated to ovarian cancers: two clinical cases.

Aim: Using illustrative cases of two patients with ovarian cancer who developed unusual thrombosis in pregnancy, to describe the difficulties in diagnosing and managing such patients.

Methods: We present the analysis of two cases of thrombosis of unusual localization (central artery of the retina and transverse and sigmoid sinus thrombosis) during pregnancy in women with hidden ovarian cancer.

Results: In both cases, the symptomatic of unususal thrombosis was interpreted as a manifestation of eclampsia, leading to a choice of non-optimal obstetric tactics on a background of hidden ovarian cancer, which in both cases were diagnosed only postpartum.

Fragmentation of chlorpyrifos by thermal electron attachment: a likely relation to its metabolism and toxicity.

The energies of formation and dissociative decays of temporary negative ions of the organophosphorus insecticide chlorpyrifos (CPF) are studied using electron transmission spectroscopy (ETS), dissociative electron attachment spectroscopy (DEAS) and quantum-chemical calculations. Three features are displayed by ETS at 2.4, 3.

Resonance electron attachment and long-lived negative ions of phthalimide and pyromellitic diimide.

Resonance attachment of low energy (0-15 eV) electrons to imide-containing molecules, phthalimide (PTI) and pyromellitic diimide (PMDI), was investigated in the gas-phase by means of Electron Transmission Spectroscopy (ETS) and Dissociative Electron Attachment Spectroscopy (DEAS). Among a variety of low intensity negatively charged fragments formed by DEA, in both compounds the dominant species was found to be a long-lived (μs) parent molecular anion formed at zero energy. In addition, in PMDI long-lived molecular anions were also observed at 0.

Molecular anion formation in 9,10-anthraquinone: Dependence of the electron detachment rate on temperature and incident electron energy.

Attachment of low-energy electrons to gas phase 9,10-anthraquinone (AQ) was observed with electron transmission (ET) spectroscopy, and interpreted with the support of quantum chemical calculations. The ET spectrum displays three shape resonances at 0.45, 0.