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Condition: Patent Foramen Ovale
Procedure: CT Scan

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Total 55 results found since Jan 2013.

Prevalence of Patent Foramen Ovale in Ischaemic Stroke in Italy: Results of SISIFO Study
Conclusion: If any relationship exists between stroke and PFO, this is more likely in PACI and POCI at a younger age. Our results are consistent with recent findings that underline PFO alone must not be considered a significant independent predictor for stroke; so the presence of PFO alone doesn't permit rushed causal correlations or ‘therapeutic aggressiveness'.Cerebrovasc Dis 2015;39:162-169
Source: Cerebrovascular Diseases - February 26, 2015 Category: Neurology Source Type: research

Advances in stroke medicine.
Authors: Campbell BC Abstract In recent years, reperfusion therapies such as intravenous thrombolysis and endovascular thrombectomy for ischaemic stroke have dramatically reduced disability and revolutionised stroke management. Thrombolysis with alteplase is effective when administered to patients with potentially disabling stroke, who are not at high risk of bleeding, within 4.5 hours of the time the patient was last known to be well. Emerging evidence suggests that other thrombolytics such as tenecteplase may be even more effective. Treatment may be possible beyond 4.5 hours in patients selected using brain imagi...
Source: Medical Journal of Australia - May 6, 2019 Category: General Medicine Tags: Med J Aust Source Type: research

A Review of the Role of Transthoracic and Transesophageal Echocardiography, Computed Tomography, and Magnetic Resonance Imaging in Cardioembolic Stroke
Med Sci Monit. 2022 Jun 22;28:e936365. doi: 10.12659/MSM.936365.ABSTRACTStroke is a major source of morbidity and mortality worldwide, accounting for the second largest cause of mortality and the third greatest cause of disability. Stroke is frequently preceded by a transient ischemic attack (TIA). The etiologies of 20-30% of ischemic strokes are unknown, and thus are termed "cryptogenic strokes". About 25% of ischemic strokes are cardioembolic. Strokes occur at a rate of around 2% per year in individuals with heart failure with reduced ejection fraction (HFrEF), with a strong correlation between stroke risk and the degree...
Source: Medical Science Monitor - June 22, 2022 Category: Research Authors: Sergiu Florin Arnautu Diana Aurora Arnautu Ana Lascu Andrei A Hajevschi Ciprian Ilie Ilie Rosca Abhinav Sharma Dragos Catalin Jianu Source Type: research

Use of Magnetic Resonance Venography in Screening Patients With Cryptogenic Stroke for May-Thurner Syndrome
The purpose of this study was to determine the prevalence of May-Thurner syndrome (MTS) in patients with cryptogenic stroke and to determine the incidence of patent foramen ovale. Magnetic resonance venography of 214 patients with cryptogenic stroke and 50 control patients with abdominopelvic computed tomography scans were evaluated for MTS. Incidence of patent foramen ovale and MTS in the stroke group were significantly greater than the control group (P = 0.0001, P = 0.0023, respectively). In addition, there was significantly greater compression of the left common iliac vein in the stroke group (32%) compared with the control group (13%) (P
Source: Current Problems in Diagnostic Radiology - June 19, 2016 Category: Radiology Authors: Anand M. Prabhakar, Alexander S. Misono, Katelyn N. Brinegar, Ali Khademhosseini, Rahmi Oklu Source Type: research

Pulmonary Embolism in Ischemic Stroke.
Abstract Silent pulmonary embolism (PE) may be associated with acute ischemic stroke (AIS). We identified 10 patients from 3,132 unique patients (3,431 CT scans). We retrospectively examined CT angiogram of patients with AIS to determine the frequency of concurrent PE in AIS. The period prevalence of PE was 0.32. Seven patients had concurrent PE, whereas three had PE diagnosed 2 days after their AIS presentation. We suspected paradoxical embolism via patent foramen ovale as the cause of stroke in three patients and thrombophilia in four patients. Seven patients had poor outcome including four deaths. CT angiogram ...
Source: The Canadian Journal of Neurological Sciences - January 28, 2018 Category: Neurology Authors: Eswaradass PV, Dey S, Singh D, Hill MD Tags: Can J Neurol Sci Source Type: research

Potential Utility of Multidetector Computed Tomography to Identify both Cardiac Embolic Sources and Coronary Artery Disease in Patients with Embolic Stroke
Conclusions: Our results suggest that MDCT has potential to identify both cardiac embolic sources and CAD in patients with embolic stroke but without known CAD.Cardiology 2016;133:205-210
Source: Cardiology - November 30, 2015 Category: Cardiology Source Type: research

Increased Blood Residence Time as Markers of High-Risk Patent Foramen Ovale
AbstractPrevious investigations have suggested that patients with patent foramen ovale (PFO) often have an atrial dysfunction, like to that observed in patients with atrial fibrillation (AF) which may concur to an increased risk of cryptogenic stroke. The aim of the study is to compare the atrial resident time (Rt) of PFO patients to those with sinus rhythm (SR) and AF using patient-specific 3D computational fluid dynamics (CFD) analysis. Models of left atrium (LA) hemodynamics were obtained from time-resolved CT scans and transthoracic echocardiography (TTE). Enrolled patients were divided into three groups: 30 healthy su...
Source: Translational Stroke Research - June 11, 2022 Category: Neurology Source Type: research

Acute Ischemic Stroke in a Young Woman With No Known Risk Factors.
CONCLUSION: Onset of neurologic symptoms can be immediate or delayed in patients undergoing venous foam sclerotherapy. Early recognition of neurologic deficits resulting from paradoxical gas embolism and its treatment with hyperbaric oxygen can prevent permanent disability. PMID: 29677415 [PubMed - in process]
Source: WMJ - March 1, 2018 Category: General Medicine Authors: Abdelhamid N, Farooq S, Sarraj A Tags: WMJ Source Type: research

Left Atrial Enlargement Could Be Detected on Extended Computed Tomography Angiography —Reply
In Reply We agree with Popkirov that left atrial volume is a better marker of incident atrial fibrillation than atrial diameter; however, we did not have these data available at all of the sites participating in the New Approach Rivaroxaban Inhibition of Factor Xa in a Global Trial Versus ASA to Prevent Embolism in Embolic Stroke of Undetermined Source (NAVIGATE-ESUS) trial. Recently completed and ongoing studies will help determine if our observation has a clinical role and may provide additional data on left atrial size and function. Once all of these data are available, guidelines committees will likely make recommendat...
Source: JAMA Neurology - November 11, 2019 Category: Neurology Source Type: research

Prevalence And Clinical Implications Of Patent Foramen Ovale In The SCOT-HEART Trial
This study assesses the prevalence of PFO in the Scottish COmputed Tomography of the HEART (SCOT-HEART) trial and its clinical implications.
Source: Journal of Cardiovascular Computed Tomography - January 1, 2023 Category: Radiology Authors: M. Williams, S. Sanders, S. Williams, E. van Beek, E. Nicol, D. Newby Source Type: research

Decompressive craniectomy for malignant middle cerebral artery infarction in a 16-year old boy: a case report
ConclusionsThis case highlights the preponderance of cryptogenic stroke in younger patients and its etiological elusiveness. It further demonstrates that age is predictive in terms of survival and functional outcome in the context of malignant middle cerebral artery infarction.
Source: Journal of Medical Case Reports - December 19, 2016 Category: Journals (General) Source Type: research

Paradoxical Embolism in the Setting of Inferior Vena Cava Filter Removal (P1.283)
Conclusions:Although clinically relevant events secondary to IVC filter migration and fracture are rare, they can be life-threatening. Care should be taken when choosing to place these devices, and alternative therapies should be considered when possible. They should be removed when no longer needed, as fracture rates are increased with longer dwell times. Up to half of complications can be avoided with retrieval within 3 months.Disclosure: Dr. Yost has nothing to disclose. Dr. Klaas has nothing to disclose.
Source: Neurology - April 17, 2017 Category: Neurology Authors: Yost, M., Klaas, J. Tags: Cerebrovascular Disease Case Reports I Source Type: research

Clot Through the Heart: Paradoxical Embolism With Thrombus-in-Transit at Multidetector Computed Tomography
We present the case of a 67-year-old man with concomitant stroke and pulmonary embolism 1 day after radiofrequency catheter ablation for refractory atrial tachycardia. A chest computed tomographic angiogram revealed “thrombus-in-transit” across a patent foramen ovale, confirming the diagnosis of paradoxical embolism. Paradoxical embolism is a rare definitive diagnosis. Our case is a key demonstration of the even rarer instance where such a diagnosis is confirmed at multidetector computed tomography.
Source: Journal of Computer Assisted Tomography - July 1, 2015 Category: Radiology Tags: Cardiothoracic Imaging Source Type: research

Paradoxical brain embolism shadowing massive pulmonary embolism
Patent foramen ovale is frequently observed in the general population. In case of massive pulmonary embolism, the sudden increase in the right heart cavity's pressure may cause a right-to-left shunting across this foramen, which could be associated with conflicting outcomes. Herein, we report a case of reversible cardiac arrest preceded by seizures, and followed by hemodynamic stability without any vasopressor. A brain CT-scan showed a limited ischemic stroke. Initial echocardiographic assessment revealed an acute cor pulmonale and a right-to-left intracardiac shunt across a large patent foramen ovale, suggesting the diagn...
Source: The American Journal of Emergency Medicine - May 15, 2018 Category: Emergency Medicine Authors: Fran çois Bagate, Alexandre Bedet, Armand Mekontso Dessap, Guillaume Carteaux Source Type: research