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https://www.readbyqxmd.com/read/28325788/decompression-illness-with-hypovolemic-shock-and-neurological-failure-symptoms-after-two-risky-dives-a-case-report
#1
Sebastian Klapa, Johannes Meyne, Wataru Kähler, Frauke Tillmans, Henning Werr, Andreas Binder, Andreas Koch
Hypovolemia is known to be a predisposing factor of decompression illness (DCI) while diving. The typical clinically impressive neurological symptoms of DCI may distract from other symptoms such as an incipient hypovolemic shock. We report the case of a 61-year-old male Caucasian, who presented with an increasing central and peripheral neural failure syndrome and massive hypovolemia after two risky dives. Computed tomography (CT) scans of the chest and Magnetic resonance imaging scans of the head revealed multiple cerebral and pulmonary thromboembolisms...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28320316/clinical-outcomes-of-conventional-surgery-versus-mitraclip%C3%A2-therapy-for-moderate-to-severe-symptomatic-mitral-valve-regurgitation-in-the-elderly-population-an-institutional-experience
#2
Anthony Alozie, Liliya Paranskaya, Bernd Westphal, Alexander Kaminski, Mohammad Sherif, Magnus Sindt, Stephan Kische, Jochen Schubert, Doreen Diedrich, Hüseyin Ince, Gustav Steinhoff, Alper Öner
BACKGROUND: The aim of this study was to compare treatment of moderate to severe symptomatic mitral regurgitation (MR) with either conventional surgery or the mitral valve edge-to-edge device (MitraClip®) in very elderly patients. The newly introduced MitraClip device has demonstrated promising acute results in treating this patient cohort. Also noteworthy is the fact that patients who otherwise would have been denied surgery are increasingly referred for treatment with the MitraClip device...
March 20, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28317214/characterization-of-blood-flow-through-intrapulmonary-arteriovenous-anastomoses-and-patent-foramen-ovale-at-rest-and-during-exercise-in-stroke-and-transient-ischemic-attack-patients
#3
Rinaldo Romac, Otto Barak, Duska Glavas, Zora Susilovic Grabovac, Petar Lozo, Igor Roje, Kresimir Caljkusic, Irena Drmic-Hofman, James T Davis, Zeljko Dujic, Andrew T Lovering
OBJECTIVES: We determined whether stroke and/or TIA subjects have exercise-induced blood flow through intrapulmonary arteriovenous anastomoses (QIPAVA ) and/or patent foramen ovale (QPFO ) and a genetic predisposition for ischemic stroke. METHODS: Twenty-eight stroke and/or TIA subjects (33-63 years old) underwent transthoracic saline contrast echocardiography concomitant with transcranial Doppler to detect QIPAVA and QPFO at rest and during supine exercise with and without breathing 100% O2 ...
March 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28299566/life-cycle-analysis-of-perfluorooctanoic-acid-pfoa-and-its-salts-in-china
#4
Jing Meng, Yonglong Lu, Tieyu Wang, Pei Wang, John P Giesy, Andrew J Sweetman, Qifeng Li
China has been the largest producer and emitter of perfluorooctanoic acid and its salts (PFOA/PFO). However, the flows of PFOA/PFO from manufacture and application to the environment are indistinct, especially flows from waste treatment sites to the environment. Here, a life cycle analysis of PFOA/PFO is conducted in which all major flows of PFOA/PFO have been characterized for 2012. Processes related to uses and possible releases of PFOA/PFO include manufacture and use, waste management, and environmental storage...
March 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28296023/closure-of-patent-forman-ovale-defects-using-gore%C3%A2-cardioform-septal-occluder
#5
Stefan E Hardt, Andreas Eicken, Felix Berger, Stephan Schubert, Mario Carminati, Gianfranco Butera, Jochen Grohmann, Rene Höhn, Jens Erik Nielsen-Kudsk, David Hildick-Smith, Magnus Settergren, John D Thomson, Nicolas Geis, Lars Søndergaard
AIMS: The GORE® CARDIOFORM Septal Occluder (GSO) is a novel device designed for rapid and effective closure of patent foramen ovale (PFO) which has distinctive features making it suitable for a broad spectrum of anatomical variations. We report the procedural and 6 months follow-up results of the first prospective, multicenter study using GSO. METHODS AND RESULTS: This single-arm study included 150 subjects undergoing closure of PFO in 10 European centers. In 149 out of 150 patients implantation of a GSO device was successful...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28295858/non-obstructive-carotid-atherosclerosis-and-patent-foramen-ovale-in-young-adults-with-cryptogenic-stroke
#6
A Jaffre, B Guidolin, J-B Ruidavets, N Nasr, V Larrue
BACKGROUND AND PURPOSE: Up to 50% of ischaemic strokes in young adults are classified as cryptogenic despite extensive work-up. We sought to evaluate the prevalence of non-obstructive carotid atherosclerosis (NOCA) and its association with patent foramen ovale (PFO) in young adults with cryptogenic stroke (CS). METHODS: Patients aged 18-54 years, consecutively treated for first-ever CS in an academic stroke service, were included. NOCA was assessed using carotid ultrasound examination and was defined as carotid plaque with <50% stenosis...
March 15, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28295572/dyspnea-following-thoracostomy-closure-after-right-pneumonectomy-an-uncommon-echocardiographic-diagnosis-and-therapeutic-approach
#7
Matteo Pernigo, Barbara Canneto, Davide Betta, Gionata Molinari, Flavio Ribichini, Guido Zannini, Corrado Vassanelli, Andrea Rossi
Dyspnea and hypoxemia are common postoperative problems after pneumonectomy. One of the rarer causes of respiratory distress after right pneumonectomy is the development of a significant right-to-left shunt across a patent foramen ovale (PFO), which can evolve at a variable interval of time after the operation. We report here our experience with a patient who underwent right pneumonectomy, followed by several complications, and who presented severe dyspnea 7 months later, after the closure of a right thoracostomy...
March 14, 2017: Echocardiography
https://www.readbyqxmd.com/read/28283958/pfo-and-migraine-is-there-a-role-for-closure
#8
REVIEW
Melissa Rayhill, Rebecca Burch
Observational studies suggest that closure of a patent foramen ovale for other indications may reduce or even eliminate migraine attacks, particularly migraine with aura. The first randomized clinical trial of patent foramen ovale (PFO) closure for prevention of migraine, the MIST trial, showed negative results. The results of the other two completed studies in this area have recently been published in the last year. PRIMA and PREMIUM were also both negative for their primary endpoints. The PREMIUM trial did show a reduction in headache days in the migraine with aura subgroup but the final results of this subset analysis have not been published...
March 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28282706/cardiovascular-malformations-in-infants-of-diabetic-mothers-a-retrospective-case-control-study
#9
Parvin Akbariasbagh, Mamak Shariat, Naseredin Akbariasbagh, Bita Ebrahim
Maternal diabetes has teratogenic effects on the evolution of the fetal cardiovascular system; as a consequence, cardiovascular malformations are the most common anomalies in infants of diabetic mothers. The present study focuses on the association of all types of diabetes in mothers with the incidence of congenital cardiovascular malformations in their infants. In this retrospective case-control study performed between the years 2008 and 2010, 35 infants of diabetic mothers were selected as a case group, and another 35 infants of mothers with normal blood glucose levels were selected as a control group...
February 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28282389/4d-flow-mri-assessment-of-right-atrial-flow-patterns-in-the-normal-heart-influence-of-caval-vein-arrangement-and-implications-for-the-patent-foramen-ovale
#10
Jehill D Parikh, Jayant Kakarla, Bernard Keavney, John J O'Sullivan, Gary A Ford, Andrew M Blamire, Kieren G Hollingsworth, Louise Coats
AIM: To investigate atrial flow patterns in the normal adult heart, to explore whether caval vein arrangement and patency of the foramen ovale (PFO) may be associated with flow pattern. MATERIALS AND METHODS: Time-resolved, three-dimensional velocity encoded magnetic resonance imaging (4D flow) was employed to assess atrial flow patterns in thirteen healthy subjects (6 male, 40 years, range 25-50) and thirteen subjects (6 male, 40 years, range 21-50) with cryptogenic stroke and patent foramen ovale (CS-PFO)...
2017: PloS One
https://www.readbyqxmd.com/read/28273804/domain-4-d4-of-perfringolysin-o-to-visualize-cholesterol-in-cellular-membranes-the-update
#11
REVIEW
Masashi Maekawa
The cellular membrane of eukaryotes consists of phospholipids, sphingolipids, cholesterol and membrane proteins. Among them, cholesterol is crucial for various cellular events (e.g., signaling, viral/bacterial infection, and membrane trafficking) in addition to its essential role as an ingredient of steroid hormones, vitamin D, and bile acids. From a micro-perspective, at the plasma membrane, recent emerging evidence strongly suggests the existence of lipid nanodomains formed with cholesterol and phospholipids (e...
March 3, 2017: Sensors
https://www.readbyqxmd.com/read/28273530/kinetic-sorption-of-contaminants-of-emerging-concern-by-a-palygorskite-montmorillonite-filter-medium
#12
Tedros M Berhane, Jonathan Levy, Mark P S Krekeler, Neil D Danielson
Kinetic sorption of bisphenol A (BPA), carbamazepine (CMZ) and ciprofloxacin (CIP) by three palygorskite-montmorillonite (Pal-Mt) granule sizes was studied. For BPA, CMZ and CIP, apparent sorption equilibrium was reached within about 3, 5 and 16 h, respectively. The highest and the lowest sorption capacities were by the small and the large granule sizes, respectively. Experimental results were compared to various sorption kinetics models to gain insights regarding the sorption processes and achieve a predictive capacity...
February 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28266661/influence-of-the-valsalva-maneuver-on-cardiac-hemodynamics-and-right-to-left-shunt-in-patients-with-patent-foramen-ovale
#13
Enfa Zhao, Yafei Zhang, Chunmiao Kang, Hua Niu, Jing Zhao, Lei Sun, Baomin Liu
The purpose of this study was to investigate the influence of the Valsalva maneuver (VM) on cardiac hemodynamics in patients with patent foramen ovale (PFO). Sixty-five patients who were highly suspected to have PFO were included. The changes in E, A, E/A ratio of mitral valve blood flow, E, A, E/A ratio of tricuspid valve blood flow, left ventricular end-diastolic volume, area and right atrial area during the resting state and the strain phase of the Valsalva maneuver were observed by transthoracic echocardiography (TTE)...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28263714/r468a-mutation-in-perfringolysin-o-destabilizes-toxin-structure-and-induces-membrane-fusion
#14
Magdalena Kulma, Aleksandra Kacprzyk-Stokowiec, Katarzyna Kwiatkowska, Gabriela Traczyk, Andrzej Sobota, Michał Dadlez
Perfringolysin O (PFO) belongs to the family of cholesterol-dependent cytolysins. Upon binding to a cholesterol-containing membrane, PFO undergoes a series of structural changes that result in the formation of a β-barrel pore and cell lysis. Recognition and binding to cholesterol are mediated by the D4 domain, one of four domains of PFO. The D4 domain contains a conserved tryptophan-rich loop named undecapeptide (E458CTGLAWEWWR468) in which arginine 468 is essential for retaining allosteric coupling between D4 and other domains during interaction of PFO with the membrane...
March 2, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28254390/fluid-overload-and-outcomes-in-critically-ill-children-a-single-center-prospective-cohort-study
#15
Franco Diaz, Mark Benfield, LaTanya Brown, Leslie Hayes
OBJECTIVE: To prospectively evaluate the association between fluid overload (FO) and clinical outcomes, mortality, mechanical ventilation (MV), and duration and length of stay in a pediatric intensive care unit (PICU). METHODS: Over a 12-month period, patients who were on MV for >24h or vasoactive support were prospectively included. Demographic and clinical data were recorded. Daily FO was calculated as [(fluid in-fluid out)/admission weight]×100%. Multivariate stepwise logistic regression analysis was used to determine predictors of survival...
February 16, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28251616/migraine-with-neurological-features-in-a-scuba-diver-with-a-patent-foramen-ovale
#16
Ashhar Ali, A David Rothner
Neurologic complications of decompression sickness have been observed for over half of a century. Little is known, however, about the risk of diving in patients that suffer from migraine with aura (MWA). We report the case of a pediatric patient with a history of migraine with aura, who was later found to have a PFO, who developed headache with neurological symptoms during a scuba diving lesson.
March 2, 2017: Headache
https://www.readbyqxmd.com/read/28249937/is-transnasal-tee-imaging-a-viable-alternative-to-conventional-tee-during-structural-cardiac-interventions-a-comparison-of-image-quality
#17
Dimitris Klettas, Emma Alcock, Rafal Dworakowski, Philip MacCarthy, Mark Monaghan
AIM: The role of transoesophageal echocardiography in cardiac interventional structural procedures is well established and appreciated. However, the need for general anaesthesia (GA) throughout the procedure remains a controversial issue. The aim of the present study is to assess the feasibility and imaging quality of using a transnasal microrobe that allows the usage of conscious sedation in patients that undergo cardiac structural interventional procedures without missing the benefits, guidance and navigation of conventional trans-procedural TEE...
March 1, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28224399/can-neuroimaging-differentiate-pfo-and-af-related-cardioembolic-stroke-from-the-other-embolic-sources-clinical-radiological-correlation-on-a-retrospective-study
#18
Alessandro Stecco, Martina Quagliozzi, Eleonora Soligo, Andrea Naldi, Alessia Cassarà, Lorenzo Coppo, Roberta Rosso, Angelo Sante Bongo, Paola Amatuzzo, Francesco Buemi, Elena Guenzi, Alessandro Carriero
PURPOSE: The aim of this retrospective study was to map the specific ischemic lesion patterns of distribution in patent foramen ovale-related stroke (PFO-stroke) and atrial fibrillation-related stroke (AF-stroke) in patients with idiopatic ischemic stroke. MATERIALS AND METHODS: 750 ischaemic strokes were screened on basis of diagnostic imaging and tests: patients with known causes were excluded. 171 patients with unknown cause were selected and divided in two groups: AF-stroke (43 patients) and PFO-stroke (128 patients)...
February 21, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28218704/an-easy-approach-to-control-%C3%AE-phase-formation-in-pfo-films-for-optimized-emission-properties
#19
Qi Zhang, Lang Chi, Gang Hai, Yueting Fang, Xiangchun Li, Ruidong Xia, Wei Huang, Erdan Gu
We demonstrate a novel approach to control β-phase content generated in poly(9,9-dioctylfluorene) (PFO) films. A very small amount of paraffin oil was used as the additive to the PFO solution in toluene. The β-phase fraction in the spin-coated PFO films can be modified from 0% to 20% simply by changing the volume percentage of paraffin oil in the mixed solution. Organic light emitting diodes (OLEDs) and amplified spontaneous emission (ASE) study confirmed low β-phase fraction promise better OLEDs device, while high β-phase fraction benefits ASE performance...
February 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28218570/open-surgical-retrieval-of-an-embolized-pfo-occluder-system
#20
Andraes Frech, Olaf Gorny, Gustav Fraedrich, Gerlig Widmann, Johannes Mair, Nicolas Moes, Silvana Mueller, Josef Klocker
Device migration after intervention for persistent foramen ovale occlusion is a rare complication. In case of failure of endovascular device retrieval, open surgical removal is indicated, safe, and reliable.
February 20, 2017: VASA. Zeitschrift Für Gefässkrankheiten
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