27 research outputs found

    Takotsubo Syndrome and Cerebral Cardioembolism: Case Report to Redefine the Short-term Prognosis

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    Takotsubo cardiomyopathy is characterized by transient hypo-kinesis of the left ventricular apex or midventricular segments, without significant stenosis affecting coronary arteries. This cardiomyopathy is well known to be related to cerebral infarction, although scarce data describe the real timing of this adverse event.We report the case of a 69-year-old woman who experienced Takotsubo cardiomyopathy, and developed cardiogenic cerebral embolism on the fourth day from the onset of symptoms.Takotsubo patients could be effectively at high risk for stroke; thus, we should pay attention to rule out ventricular thrombosis, consider immediately anticoagulant therapy, and revise Takotsubo prognosis because its complications

    Gaia Early Data Release 3: Structure and properties of the Magellanic Clouds

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    We compare the Gaia DR2 and Gaia EDR3 performances in the study of the Magellanic Clouds and show the clear improvements in precision and accuracy in the new release. We also show that the systematics still present in the data make the determination of the 3D geometry of the LMC a difficult endeavour; this is at the very limit of the usefulness of the Gaia EDR3 astrometry, but it may become feasible with the use of additional external data. We derive radial and tangential velocity maps and global profiles for the LMC for the several subsamples we defined. To our knowledge, this is the first time that the two planar components of the ordered and random motions are derived for multiple stellar evolutionary phases in a galactic disc outside the Milky Way, showing the differences between younger and older phases. We also analyse the spatial structure and motions in the central region, the bar, and the disc, providing new insights into features and kinematics. Finally, we show that the Gaia EDR3 data allows clearly resolving the Magellanic Bridge, and we trace the density and velocity flow of the stars from the SMC towards the LMC not only globally, but also separately for young and evolved populations. This allows us to confirm an evolved population in the Bridge that is slightly shift from the younger population. Additionally, we were able to study the outskirts of both Magellanic Clouds, in which we detected some well-known features and indications of new ones

    Forme, tempi e modi di fare famiglia in Sardegna

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    Gli studi raccolti in questo volume si collocano all'interno di un progetto di rilettura organica, in un quadro di lungo periodo, delle vicende della popolazione sarda nel passaggio dal vecchio al nuovo regime demografico. La pubblicazione approfondisce le peculiaritĂ  dei comportamenti familiari nell'isola rispetto al contesto nazionale, analizzando in particolare i tempi delle nozze, le scelte residenziali e la proprietĂ  della casa da parte delle coppie, la nascita e la sopravvivenza dei figli, la condizione degli anziani. La prospettiva micro adottata nei saggi, frutto della collaborazione fra ricercatori di diversa formazione disciplinare (demografi, sociologi, statistici, storici) degli Atenei di Cagliari e Sassari, consente di ricostruire le complesse trasformazioni che accompagnano il declino demografico in Sardegna

    Acute localized exanthem due to Coxsackievirus A4

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    Enteroviruses are the leading cause of exanthems in children, especially during summer and autumn. Enterovirus infections may occur in epidemics or small outbreaks. A 30-year-old woman presented with a three-day history of an erythematous maculopapular skin rash with petechiae localized exclusively under the nipple of the right breast. The skin eruption was associated with an erythematous-petechial enanthem. The patient complained of low-grade fever, headache, asthenia, sore throat and arthromyalgias. IgM (1:128) and IgG (1:640) antibodies against Coxsackievirus A4 were detected by the virus neutralization test. Reverse transcriptase real time polymerase chain reaction (PCR) assay detected enterovirus RNA in the patient's plasma and faeces. Diagnosis of an acute localized exanthem due to Coxsachievirus A4 was performed. Skin lesions improved in seven days and completely cleared in two weeks without any systemic or topical treatment. Physicians should be aware of the possibility that enteroviruses may determine localized skin eruptions in addition to hand-foot-mouth disease and atypical exanthems. Viral infections should be considered in the differential diagnosis of localized dermatitis especially when the skin eruption is associated with enanthems and with systemic symptoms

    The microbiome and its relevance in complex wounds

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    Chronic wounds include arterial, venous, diabetic and pressure ulcers. The term "chronic wound" defines wounds that have not healed within three months. The possible causes that transform a simple wound into a chronic one are the object of study, and research has focused on infection as one of the crucial factors in producing and maintaining chronic wounds. In fact, 60% of chronic wounds are colonized by bacteria living in a biofilm. A biofilm is a complex aggregation of microorganisms characterized by the secretion of an adhesive and protective matrix. The two most common biofilm generators are Staphylococcus aureus and Pseudomonas aeruginosa. Several conditions constitute risk factors for the formation of biofilms, such as diabetes mellitus, venous insufficiency, malnutrition, cancer, oedema, and repetitive trauma. There are no standard diagnostic tests to determine the presence of biofilms, but there are several clinical indications which can help, and performing a tissue biopsy is better than a swab. Wound bed preparation is a crucial part of biofilm treatment and surgical or conservative sharp wound debridement are the preferred treatments that are effective in removing or reducing biofilms. We report three cases of complex wounds and their treatment

    Vision problems in Down syndrome adults do not hamper communication, daily living skills and socialisation

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    Vision problems in Down syndrome adults do not hamper communication, daily living skills and socialisatio

    Changes in eruptive style during the A.D. 1538 Monte Nuovo eruption (Phlegrean Fields, Italy): the role of syn-eruptive crystallization

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    The Monte Nuovo eruption is the most recent event that occurred at Phlegrean Fields (Italy) and lasted from 29 September to 6 October 1538. It was characterized by 2 days of quasi-sustained phreatomagmatic activity generating pumice-bearing pyroclastic density currents and forming a 130-m-high tuff cone (Lower Member deposits). The activity resumed after a pause of 2 days with two discrete Vulcanian explosions that emplaced radially distributed, scoria-bearing pyroclastic flows (Upper Member deposits). The juvenile products of Lower and Upper Members are, respectively, phenocryst-poor, light-coloured pumice and dark scoria fragments with K-phonolitic bulk compositions, identical in terms of both major and trace elements. Groundmass is formed by variable proportions of K-feldspar and glass, along with minor sodalite and Fe-Ti oxide present in the most crystallized samples. Investigations of groundmass compositions and textures were performed to assess the mechanisms of magma ascent, degassing and fragmentation along the conduit and implications for the eruptive dynamics. In pumice of the Lower Member groundmass crystal content increases from 13 to 28 vol% from the base to the top of the sequence. Products of the Upper Member consist of clasts with a groundmass crystal content between 30 and 40 vol% and of totally crystallized fragments. Crystal size distributions of groundmass feldspars shift from a single population at the base of the Lower Member to a double population in the remaining part of the sequence. The average size of both populations regularly increases from the Lower to the Upper Member. Crystal number density increases by two orders of magnitude from the Lower to the Upper Member, suggesting that nucleation dominated during the second phase of the eruption. The overall morphological, compositional and textural data suggest that the juvenile components of the Monte Nuovo eruption are likely to record variations of the magma properties within the conduit. The different textures of pumice clasts from the Lower Member possibly reflect horizontal gradients of the physical properties (P, T) of the ascending magma column, while scoriae from the second phase are thought to result from the disruption of a slowly rising plug crystallizing in response to degassing. In particular, crystal size distribution data point to syn-eruptive degassing-induced crystallization as responsible for the transition in eruptive style from the first to the second phase of the eruption. This mechanism not only has been proved to profoundly affect the dynamics of dome-forming calc-alkaline eruptions, but may also have a strong influence in driving the eruption dynamics of alkaline magmas of intermediate to evolved compositions.Published601-621reserve
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