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Patent foramen ovale: a variant of normal or a true congenital heart disease?
Cardiovasc Pathol
January 2025
Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Padova, Italy. Electronic address:
Foramen ovale plays a key role in foetal circulation, however it may remain patent after birth throughout the life. Its patency is so frequent in healthy people (27-35%), such as to be considered a variant of normal. It is at risk of complications, like paradoxical embolism by right to left shunt with stroke, migraine, temporary blindness, as well as aneurysm, thrombosis and endocarditis of the fossa ovalis.
View Article and Find Full Text PDFReview of the potential for selenium remobilization in semi-passive treatment systems of mine impacted waters.
J Environ Manage
January 2025
BQE Water, Vancouver, BC, Canada.
Biological semi-passive mine water treatment technologies are used in the mining industry as an alternative to or in conjunction with active treatment systems to remediate mine impacted water (MIW) containing nitrate and selenium oxyanions such as selenate and selenite. In semi-passive biological treatment systems, MIW is pumped through a saturated, porous media (either a gravel bed or waste rock) which provides ample surface area for biofilm growth and the creation of anoxic, subaqueous environments. Additional nutrients and carbon sources are pumped into the system to encourage the growth of microbes that biochemically reduce selenate and selenite to insoluble reduced Se species such as selenium nanoparticles (SeNP) by respiring selenate and selenite.
View Article and Find Full Text PDF[Transcatheter closure of patent ductus arteriosus in an extremely low birth weight preterm infant].
Zhonghua Er Ke Za Zhi
January 2025
Heart Center, Women and Children's Hospital, Qingdao University, Qingdao266034, China.
Effects of patent foramen ovale in migraine: a metabolomics-based study.
J Physiol
January 2025
Department of Neurology, West China Hospital, Sichuan University, Chengdu, China.
Patent foramen ovale (PFO), a cardiac anatomical anomaly inducing abnormal haemodynamics, leads to a paradoxical bypass of the pulmonary circulation. PFO closure might alleviate migraines; however, clinical evidence and basic experiments for the relationship are lacking. To explore the effect of PFO on migraine, 371 migraineurs finishing blood tests and contrast transthoracic echocardiography for the detection of PFO were prospectively included.
View Article and Find Full Text PDFA rare case of paradoxical embolization due to an acquired extracardiac right-to-left shunt during covid-19 infection: Every street leads to heart.
J Cardiol Cases
October 2024
Pediatric Cardiology Unit, University of Campania "Luigi Vanvitelli", AORN "Ospedali dei Colli", Monaldi Hospital, Naples, Italy.
Unlabelled: Right-to-left shunt may be a cause of paradoxical embolization (and cryptogenic cerebral ischemic events). Patent foramen ovale and pulmonary arterio-venous malformations are the most common cause of paradoxical embolization; however, some rare cardiovascular lesions may cause a right-to-left shunt with consequent paradoxical embolization. We describe a case of a young child with superior sinus venosus atrial septal defect who underwent surgical closure and developed a cryptogenic cerebral ischemic attack due to a rare cause of paradoxical embolization, during a long-term follow-up.
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