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https://www.readbyqxmd.com/read/29351431/feasibility-of-phase-contrast-cine-magnetic-resonance-imaging-for-measuring-blood-flow-in-the-sheep-fetus
#1
An Qi Duan, Jack R T Darby, Jia Yin Soo, Mitchell C Lock, Meng Yuan Zhu, Lucy V Flynn, Sunthara Rajan Perumal, Christopher K Macgowan, Joseph B Selvanayagam, Janna L Morrison, Mike Seed
Phase-contrast cine MRI (PC-MRI) is the gold-standard non-invasive technique for measuring vessel blood flow and has previously been applied in the human fetal circulation. We aimed to assess the feasibility of using PC-MRI to define the distribution of the fetal circulation in sheep. Fetuses were catheterized at 119-120 days gestation (term, 150 days) and underwent MRI at 123 days gestation under isoflurane anesthesia, ventilated at a FiO2 of 1.0. PC-MRI was performed using a fetal arterial blood pressure catheter signal for cardiac triggering...
December 13, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29349838/patent-foramen-ovale-repair-at-the-time-of-double-lung-transplantation-necessary-or-not
#2
Nicholas R Hess, Stephen A Esper, Marie Tuft, Matthew Morrell, Jonathan D'Cunha
INTRODUCTION: Patient foramen ovale (PFO) is a common and often incidental intraoperative finding during lung transplantation (LTx). We sought to characterize the potential outcomes related to the decision-making of whether the PFO was repaired or left unrepaired. METHODS: We retrospectively evaluated bilateral LTx recipients between 2005 and 2015 from our prospective database. Incidence of postoperative stoke, 90-day mortality, and overall survival was compared between the PFO-positive and PFO-negative groups, and secondly compared between repaired PFO (rPFO) and non-repaired PFO (nrPFO) groups...
January 19, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29348012/coronary-embolus-an-underappreciated-cause-of-acute-coronary-syndromes
#3
REVIEW
Claire E Raphael, John A Heit, Guy S Reeder, Melanie C Bois, Joseph J Maleszewski, R Thomas Tilbury, David R Holmes
Coronary embolism is the underlying cause of 3% of acute coronary syndromes but is often not considered in the differential of acute coronary syndromes. It should be suspected in the case of high thrombus burden despite a relatively normal underlying vessel or recurrent coronary thrombus. Coronary embolism may be direct (from the aortic valve or left atrial appendage), paroxysmal (from the venous circulation through a patent foramen ovale), or iatrogenic (following cardiac intervention). Investigations include transesophageal echocardiography to assess the left atrial appendage and atrial septum and continuous electrocardiographic monitoring to assess for paroxysmal atrial fibrillation...
January 22, 2018: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29342993/-analysis-of-prognosis-and-associated-risk-factors-in-pediatric-idiopathic-pulmonary-arterial-hypertension
#4
Q Liu, C Zhang, Q Q Li, Y Zhu, D Zhang, W G Zhao, H Gu
Objective: To analyze the prognosis and associated risk factors of pediatric idiopathic pulmonary arterial hypertension. Methods: A total of 119 patients under 18 years of age diagnosed as idiopathic pulmonary arterial hypertension in the Pulmonary Arterial Hypertension Center in Beijing Anzhen Hospital between June 2007 and May 2017 were enrolled in this retrospective study. The clinical informations and follow-up data were collected. The endpoints of follow-up were defined as death or undergoing lung transplantation...
January 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29338916/patent-foramen-ovale-closure-vs-medical-therapy-for-recurrent-stroke-prevention-evolution-of-treatment-effect-during-follow-up
#5
Raffaele Piccolo, Anna Franzone, George C M Siontis, Stefan Stortecky, Thomas Pilgrim, Bernhard Meier, Stephan Windecker
BACKGROUND: Little is known regarding changes in treatment effect over time associated with patent foramen ovale (PFO) closure among patients with embolic stroke of unknown origin. METHODS: We reconstructed Kaplan-Meier curves for stroke from individual randomized trials comparing PFO closure vs. medical therapy among patients with embolic stroke. Random effects Cox-regression analyses were performed in order to estimate hazard ratios (HRs) with 95% confidence intervals (95%CIs)...
January 4, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29335719/adding-patent-foramen-ovale-closure-to-antiplatelet-therapy-reduced-stroke-after-cryptogenic-stroke
#6
(no author information available yet)
No abstract text is available yet for this article.
January 16, 2018: Annals of Internal Medicine
https://www.readbyqxmd.com/read/29335718/adding-patent-foramen-ovale-closure-to-antiplatelet-drugs-reduced-ischemic-stroke-after-cryptogenic-stroke
#7
Mark J Alberts
No abstract text is available yet for this article.
January 16, 2018: Annals of Internal Medicine
https://www.readbyqxmd.com/read/29335335/closure-of-patent-foramen-ovale-versus-medical-therapy-in-patients-with-cryptogenic-stroke-or-transient-ischemic-attack-updated-systematic-review-and-meta-analysis
#8
George Ntaios, Vasileios Papavasileiou, Dimitrios Sagris, Konstantinos Makaritsis, Konstantinos Vemmos, Thorsten Steiner, Patrik Michel
BACKGROUND AND PURPOSE: Previous systematic reviews and meta-analyses compared the efficacy and safety of patent foramen ovale (PFO) closure versus medical treatment in patients with cryptogenic stroke or transient ischemic attack (TIA). Recently, new evidence from randomized trials became available. METHODS: We searched PubMed until September 24, 2017, for trials comparing PFO closure with medical treatment in patients with cryptogenic stroke/TIA using the items: stroke or cerebrovascular accident or TIA and patent foramen ovale or paradoxical embolism and trial or study...
January 15, 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29332308/transcatheter-closure-of-patent-foramen-ovale-for-secondary-prevention-of-ischemic-stroke-quantitative-synthesis-of-pooled-randomized-trial-data
#9
Abdul Hakeem, Mehmet Cilingiroglu, Angelos Katramados, Konstantinos Dean Boudoulas, Cezar Iliescu, Betul Gundogdu, Konstantinos Marmagkiolis
OBJECTIVES: To evaluate the safety and efficacy of percutaneous device closure of patent foramen ovale (PFO) for secondary prevention of ischemic stroke BACKGROUND: Stroke remains the leading cause of serious long-term disability in the United States. The effectiveness of a percutaneous PFO closure in the prevention of recurrent cryptogenic strokes has not been established. METHODS: We performed a literature search using PubMed, EMBASE, Cochrane Central Register of Controlled Trials, Google Scholar, and Internet-based sources from January 2003 to September 2017...
January 14, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29322216/-therapy-changes-after-stroke-in-patients-with-open-foramen-ovale-patent-foramen-ovale-closure-or-anticoagulants-versus-antiplatelet-therapy-to-prevent-stroke-recurrence-trial-close-randomized-evaluation-of-recurrent-stroke-comparing-pfo-closure-to-established
#10
REVIEW
https://www.readbyqxmd.com/read/29317977/stemi-due-to-big-ostial-left-main-thrombus-extending-into-aorta-challenging-situation-with-no-clear-guidelines
#11
Mohammady Shahin, Oliver Gaemperli, Patrick Siegrist, Jasmina Alibegovic
Extensive left main (LM) coronary artery thrombus is a rare and life-threatening angiographic finding with usual dramatic clinical presentation including hemodynamic instability and sudden cardiac death. The proper management of a big LM thrombus extending into aorta remains a challenging issue with no clear guidelines. In the following case report we present a 45-year-old patient with no apparent risk factors for coronary artery disease who presented with acute infero-lateral ST-elevation myocardial infarction (STEMI)...
December 2017: Cardiology Research
https://www.readbyqxmd.com/read/29306484/meta-analysis-comparing-patent-foramen-ovale-closure-versus-medical-therapy-to-prevent-recurrent-cryptogenic-stroke
#12
Tomo Ando, Anthony A Holmes, Mohit Pahuja, Arshad Javed, Alenxandros Briasoulis, Tesfaye Telila, Hisato Takagi, Theodore Schreiber, Luis Afonso, Cindy L Grines, Sripal Bangalore
New evidence suggests that closure of a patent foramen ovale (PFO) plus medical therapy (MT; antiplatelet or anticoagulation) is superior to MT alone to prevent recurrent cryptogenic stroke. We performed a meta-analysis of randomized controlled trials that compared PFO closure plus MT with MT alone in patients with cryptogenic stroke. The efficacy end points were recurrent stroke, transient ischemia attack, and death. The safety end points were major bleeding and newly detected atrial fibrillation. Trials were pooled using random effects and fixed effects models...
December 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29306229/morphometric-analysis-of-the-foramen-magnum-using-cone-beam-computed-tomography
#13
Gülsün Akay, Kahraman Güngör, İlkay Peker
Background/aim: The aim of this study was to perform morphometric analysis of the foramen magnum (FM) using cone-beam computed tomography (CBCT). Materials and methods: This study included CBCT images of 190 individuals (88 males and 102 females). The sagittal and transverse diameters and circumference of the FM were measured. The shape of FM was classified as round, hexagonal, oval, egg-shaped, tetragonal, pentagonal, irregular A, and irregular B. The data were statistically analyzed with chi-square and t-tests to assess the level of significance for sex and age...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29299960/closure-of-patent-foramen-ovale-in-cryptogenic-stroke-has-the-story-come-to-an-end
#14
Jean-Louis Mas, Gilles Chatellier
Contrasting with three randomized trials that failed to show any superiority of patent foramen ovale closure over antithrombotic therapy, two trials recently reported lower rates of stroke recurrence among patients assigned to patent foramen ovale closure than among those assigned to antiplatelet therapy. In addition, one of the initially negative trials concluded in favor of patent foramen ovale closure after an extended follow-up period. A better selection of patients, the use of reference treatment groups that included patients who received antiplatelet therapy alone (rather than antiplatelet drugs or oral anticoagulants, according to physician preference), and a longer follow-up of patients, may explain the divergent findings across studies...
January 1, 2018: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/29296068/morphological-dilemma-anomalous-pulmonary-venous-confluence-or-cor-triatriatum-does-it-matter
#15
Nagarajan Muthialu
Cardiac variant of total anomalous pulmonary venous return is a rare entity, whereby all the pulmonary veins drain directly to the right atrium or coronary sinus. The effective left heart blood flow channels through a small stretched patent foramen ovale and can often be confused with a variant of cor triatriatum. Cor triatriatum is a rare congenital cardiac anomaly where pulmonary veins drain to a persistent chamber above the left atrium with a membrane separating these two. There persists either a small aperture directly from the true to the accessory left atrium or none at all...
January 2018: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/29279905/evidence-based-management-of-patent-foramen-ovale-in-patients-with-ischemic-stroke
#16
Hooman Kamel
No abstract text is available yet for this article.
December 26, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29279641/cerebral-air-embolism-secondary-to-lung-laceration
#17
Ashok Kumar Singh, Jayant Verma, Surendra Kumar
Cerebral air embolism is a rare clinical entity in day-to-day practice. The introduction of air into the venous or the arterial system can cause cerebral air embolism leading to severe neurological deficits. The common causes reported in the literature are iatrogenic; it can be caused by positive pressure maneuvers performed during cardiac resuscitation, lung biopsy, and the placement of venous catheters in the presence of a patent foramen ovale. We report a case of cerebral air embolism which has occurred secondary to lung laceration...
November 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29279077/platypnea-orthodeoxia-syndrome-after-complicated-cholecystectomy-an-unsuspected-diagnosis
#18
Catarina Queirós, Elsa Francisco, João Almeida
A 65-year-old woman with no significant prior medical history presented, in the postoperative course of a complicated cholecystectomy, several episodes of arterial desaturation. Pulmonary embolism was repeatedly suspected, but there was no evidence of pulmonary thrombus on the chest computed tomography angiographies obtained. As these episodes were mainly induced by postural changes, a platypnea-orthodeoxia syndrome was suspected. A transthoracic echocardiogram was performed and revealed a patent foramen ovale...
November 29, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/29250321/recent-advances-in-managing-septal-defects-atrial-septal-defects
#19
REVIEW
P Syamasundar Rao, Andrea D Harris
The purpose of this review is to discuss the management of atrial septal defects (ASD), paying particular attention to the most recent developments. There are four types of ASDs: ostium secundum, ostium primum, sinus venosus, and coronary sinus defects. The fifth type, patent foramen ovale-which is present in 25 to 30% of normal individuals and considered a normal variant, although it may be the seat of paradoxical embolism, particularly in adults-is not addressed in this review. The indication for closure of the ASDs, by and large, is the presence of right ventricular volume overload...
2017: F1000Research
https://www.readbyqxmd.com/read/29229471/patent-foramen-ovale-closure-for-secondary-prevention-of-cryptogenic-stroke-updated-meta-analysis-of-randomized-clinical-trials
#20
Muthiah Vaduganathan, Arman Qamar, Ankur Gupta, Navkaranbir Bajaj, Harsh B Golwala, Ambarish Pandey, Deepak L Bhatt
BACKGROUND: Patent foramen ovale closure represents a potential secondary prevention strategy for cryptogenic stroke, but available trials have varied by size, device studied, and follow-up. METHODS: We conducted a systematic search of published randomized clinical trials (RCTs) evaluating patent foramen ovale closure vs. medical therapy in patients with recent stroke or transient ischemic attack using PubMED, EMBASE, and Cochrane through September 2017. Weighting was by random effects models...
December 8, 2017: American Journal of Medicine
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