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High-grade atrioventricular block occurring during percutaneous closure of patent foramen ovale: a case report.

ABSTRACT: Background?:Percutaneous closure of patent foramen ovale (PFO) is recommended for patients presenting with PFO-related stroke. Acute high-grade conduction disturbances occurring during PFO closure procedure have not been previously reported. Case summary?:We describe for the first time a case of reversible complete atrioventricular block which occurred during closure of a PFO. Discussion?:We hypothesized that the block was the result of atrioventricular node compression-likely caused by the right-atrial disc of the 35-mm PFO closure device. We suggest implanting smaller devices in order to prevent atrioventricular conduction disturbances.

SUBMITTER: Kibler M

PROVIDER: S-EPMC7501918 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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High-grade atrioventricular block occurring during percutaneous closure of patent foramen ovale: a case report.

Kibler Marion M Marzak Halim H Jesel Laurence L Ohlmann Patrick P

European heart journal. Case reports 20200625 4

<h4>Background</h4>Percutaneous closure of patent foramen ovale (PFO) is recommended for patients presenting with PFO-related stroke. Acute high-grade conduction disturbances occurring during PFO closure procedure have not been previously reported.<h4>Case summary</h4>We describe for the first time a case of reversible complete atrioventricular block which occurred during closure of a PFO.<h4>Discussion</h4>We hypothesized that the block was the result of atrioventricular node compression-likely ...[more]

PMID: 32974462

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Safety Outcomes After Percutaneous Transcatheter Closure of Patent Foramen Ovale.

Project description:BACKGROUND AND PURPOSE:We sought to evaluate the real-world rate of safety outcomes after patent foramen ovale (PFO) closure in patients with ischemic stroke or transient ischemic attack (TIA). METHODS:We performed a retrospective cohort study using administrative claims data on all hospitalizations from 2005 to 2013 in New York, California, and Florida. Using International Classification of Diseases, Ninth Revision, Clinical Modification codes, we identified patients who underwent percutaneous transcatheter PFO closure within 1 year of ischemic stroke or TIA. Our outcome was an adverse event occurring during the hospitalization for PFO closure, defined as in prior studies as atrial fibrillation or flutter, cardiac tamponade, pneumothorax, hemothorax, a vascular access complication, or death. Crude rates were reported with exact confidence intervals. RESULTS:We identified 1887 patients who underwent PFO closure after ischemic stroke or TIA. The rate of any adverse outcome during the hospitalization for PFO closure was 7.0% (95% confidence interval [CI], 5.9%-8.2%). Rates of adverse outcomes varied by age and type of preceding cerebrovascular event. In patients >60 years of age, the rate of adverse outcomes was 10.9% (95% CI, 8.6%-13.6%) versus 4.9% (95% CI, 3.8%-6.3%) in patients ?60 years of age. The rate of adverse outcomes was 9.9% (95% CI, 7.3%-12.5%) in patients with preceding ischemic stroke versus 5.9% (95% CI, 4.7%-7.1%) after TIA. CONCLUSIONS:Approximately 1 in 14 patients who underwent percutaneous transcatheter PFO closure after ischemic stroke or TIA experienced a serious periprocedural adverse outcome or death. The risk of adverse outcomes was highest in older patients and in those with preceding ischemic stroke.

| S-EPMC5699514 | biostudies-literature

Decline in mean platelet volume in patients with patent foramen ovale undergoing percutaneous closure.

Project description:INTRODUCTION: The presence of patent foramen ovale (PFO) is considered a possible cause for cryptogenic stroke. The mechanism underlying the ischaemic neurological events in the presence of PFO has not been firmly established. The purpose of this study was to compare: (1) the mean platelet volume levels in PFO patients with and without a cryptogenic stroke, and (2) pre- and post-procedural mean platelet volumes (MPV) in patients undergoing percutaneous PFO closure. METHODS: Sixteen PFO patients undergoing percutaneous closure to prevent recurrent ischaemic events and 15 asymptomatic patients with PFO were enrolled in the study. Mean platelet volume was compared between patients with and without a history of stroke. We also compared pre- and post-procedural MPV levels in patients undergoing percutaneous PFO closure. RESULTS: Mean platelet volume, which is a marker for platelet activity, was similar in PFO patients with and without stroke (9.34 ± 1.64 vs 9.1 ± 1.34 fl; p = 0.526). Interestingly, MPV decreased significantly after percutaneous closure compared to pre-procedural levels (9.34 ± 1.64 vs 8.3 ± 1.12 fl; p = 0.001). CONCLUSION: Our findings suggest interatrial communication through a PFO may be related to increased MPV and increased platelet activity.

| S-EPMC4170178 | biostudies-literature

Patent Foramen Ovale Closure: State of the Art

Project description:Patent foramen ovale (PFO) is a common abnormality affecting between 20% and 34% of the adult population. For most people, it is a benign finding; however, in some people, the PFO can open widely to enable paradoxical embolus to transit from the venous to arterial circulation, which is associated with stroke and systemic embolisation. Percutaneous closure of the PFO in patients with cryptogenic stroke has been undertaken for a number of years, and a number of purpose-specific septal occluders have been marketed. Recent randomised control trials have demonstrated that closure of PFO in patients with cryptogenic stroke is associated with reduced rates of recurrent stroke. After a brief overview of the anatomy of a PFO, this article considers the evidence for PFO closure in cryptogenic stroke. The article also addresses other potential indications for closure, including systemic arterial embolisation, decompression sickness, platypnoea–orthodeoxia syndrome and migraine with aura. The article lays out the pre-procedural investigations and preparation for the procedure. Finally, the article gives an overview of the procedure itself, including discussion of closure devices.

| S-EPMC7726850 | biostudies-literature

Platypnea and orthodeoxia syndrome as an uncommon clinical indication for a challenging percutaneous patent foramen ovale closure: a case report.

Project description:BackgroundPlatypnea and Orthodeoxia Syndrome (POS) is a rare clinical condition characterized by positional dyspnoea and arterial desaturation. Various mechanisms are related to this syndrome. The simultaneous presence of abnormal anatomical findings [aortic root dilatation, atrial septal aneurysm (ASA), Lipomatous septum, and patent foramen ovale (PFO)] and an occurring ventilation/perfusion mismatch can modify intracardiac haemodynamics leading to POS in elderly patients.Case summaryA 70-year-old man was admitted to our emergency department suffering from neurological symptoms. A brain computed tomography scan showed a subdural haematoma and the patient underwent surgical evacuation. Some days later, he experienced an acute pulmonary insufficiency (SpO2 63%) due to parenchymal basal pneumonia treated with endotracheal intubation. Two weeks later, despite pneumonia resolution, the patient's dyspnoea became worse, experiencing deep hypoxia as soon as the patient sat up with a partial resolution on recumbent position. A transoesophageal echocardiogram with bubble-test was performed showing aortic root dilatation and a lipomatous interatrial septum characterized by the presence of tunnel-like PFO with large ASA resulting in a big right to left shunt at rest with no signs of pulmonary hypertension. The patient underwent PFO percutaneous closure intervention and a few days later O2 therapy was reduced and the patient decannulated.DiscussionThis case illustrates how the presence of both intracardiac and extracardiac factors may facilitate the onset of POS in aged patients. Platypnea and Orthodeoxia Syndrome should be considered in patients with unexplained dyspnoea and arterial desaturation related to orthostatism. It has a good prognosis with an improvement of quality of life if the causal factor can be treated.

| S-EPMC8188864 | biostudies-literature

Patent foramen ovale closure in a patient with vena cava filter: a case report.

Project description:BackgroundThe presence of a patent foramen ovale (PFO) is associated with several medical conditions, including cryptogenic left circulation thromboembolism. PFO closure was demonstrated to reduce recurrent ischaemic stroke in patients with prior cryptogenic stroke. The presence of an inferior vena cava filter (IVCF), however, may impede a transfemoral PFO closure procedure.Case summaryWe describe the case of a 50-year-old man with a PFO suffering from ischaemic stroke from paradoxical thromboembolism originating from deep vein thrombosis and requiring an IVCF. After deep vein thrombosis resolution, due to the high risk of stroke recurrences, the patient was recommended PFO closure. IVCF retrieval by the interventional radiologist was first attempted but failed. A transfemoral PFO closure procedure was thus endeavoured with the IVCF in place and was successful. The patient was then discharged in good clinical status and no stroke recurrences were reported at 5 months follow-up.DiscussionAlbeit an IVCF provides benefit in patients with recurrent thromboembolic events despite adequate anticoagulation therapy, its presence may hinder interventional procedures necessitating delivery systems to advance through the inferior vena cava. We reported on a successful PFO closure procedure via a femoral venous access in a patient with an IVCF in place, thus demonstrating the feasibility of advancing delivery systems through an IVCF. As interventional procedures requiring the advancement of delivery systems through the inferior vena cava are becoming increasingly common, the feasibility of IVCF crossing with catheters and delivery systems alike paves the way for novel interventional possibilities.

| S-EPMC8343425 | biostudies-literature

Recurrent stroke secondary to late patent foramen ovale-closure device thrombus: a case report.

Project description:BackgroundPercutaneous patent foramen ovale (PFO) closure has been well established in the secondary prevention of cryptogenic stroke with overall low rates of procedural complications. One such complication is PFO closure device thrombus formation which is now rarely reported with newer generation devices.Case summaryWe present the unusual case of a 59-year-old woman with myelofibrosis who developed late-onset recurrent embolic strokes related to Amplatzer PFO closure device thrombus whilst therapeutically anticoagulated on Warfarin. Surgical management was deemed too high risk and our patient was conservatively managed with enoxaparin. Serial transthoracic echocardiography demonstrated a reduction in thrombus size and the patient had no further neurological events.DiscussionOverall, the risk of serious complications following percutaneous PFO closure, such as device-associated thrombus, remains low. The risk of thrombus formation in patients with hypercoagulable states is not well characterized. Despite good evidence for the efficacy in preventing recurrent cryptogenic stroke, the role of PFO closure in addition to anticoagulation is unclear. Given this uncertain benefit of PFO closure in anticoagulated patients and the unclear risk profile, patient selection, and thorough pre-procedural evaluation are vital when assessing the appropriateness of percutaneous PFO closure.

| S-EPMC8377246 | biostudies-literature

Platypnea-Orthodeoxia Syndrome after Thoracic Vertebral Compression Fracture Successfully Treated by Percutaneous Patent Foramen Ovale Closure.

Project description: Not available

| S-EPMC8318820 | biostudies-literature

Patent foramen ovale and closure technique with the amplatzer occluder.

Project description:Proof that percutaneous closure of the patent foramen ovale (PFO) is superior to medical treatment is still incomplete. Paradoxical embolism is a rare event occurring over decades rather than years. None of the 4 randomized trials published carried enough patients or was followed up for long enough to reach superiority endpoints. All data, however, point to a benefit of PFO closure. Free wall erosion (exceedingly rare) and triggering of atrial fibrillation (in about 1% of patients) are the only noteworthy complications. They are outweighed by the supposedly prevented events of paradoxical embolisms, such as stroke, transient ischemic attacks, myocardial infarctions, or other systemic embolisms. Medical treatment with perhaps the exception of lifelong oral anticoagulation provides less protection. During a 10-year follow-up of a comparative study the annual mortality was significantly lower in the patients with PFO closure (0.4%) than in those with medical treatment (1.1%, P < 0.03). PFO closure can be accomplished in less than 1 hour with immediate resumption of physical activity. It represents thus a kind of mechanical vaccination.

| S-EPMC4099166 | biostudies-literature

Percutaneous closure versus medical therapy for stroke with patent foramen Ovale: a systematic review and meta-analysis.

Project description:BACKGROUND:Patent foramen ovale (PFO) closure has emerged as a secondary prevention option in patients with PFO and cryptogenic stroke. However, the comparative efficacy and safety of percutaneous closure and medical therapy in patients with cryptogenic stroke and PFO remain unclear. METHODS:Randomized controlled trials (RCTs) and comparative observational studies that compared PFO closure against medical therapy, each with a minimal of 20 patients in the closure arm and 1-year follow-up were included. RESULTS:We analyzed 6961 patients from 20 studies (5 RCTs and 15 observational studies) with a median follow-up of 3.1 years. Moderate-quality evidence showed that PFO closure was associated with a significantly lower incidence of the composite outcome of ischemic stroke, transient ischemic attack (TIA), or all-cause death (odds ratio [OR]: 0.57; 95% confidence interval [CI]: 0.38 to 0.85; P?=?0.006), mainly driven by lower incidence of stroke (OR: 0.39; 95% CI: 0.24 to 0.63; P?<?0.001). The numbers needed to treat were 43 and 39 for the composite outcome and recurrent ischemic stroke respectively. PFO closure increased the risks for atrial fibrillation or atrial flutter (OR: 5.74; 95% CI: 3.08 to 10.70; P?<?0.001; high-quality evidence) and pulmonary embolism (OR: 3.03; 95% CI: 1.06 to 8.63; P?=?0.038; moderate-quality evidence), with the numbers needed to harm being 30 and 143 respectively. The risks for TIA, all-cause death, and major bleeding were not statistically different. Analyses limited to RCTs showed similar findings, as did a series of other subgroup analyses. CONCLUSION:In conclusion, PFO closure reduced the incidences of stroke and the composite outcome of ischemic stroke, TIA, or all-cause death, but increased risks for atrial fibrillation or atrial flutter and pulmonary embolism compared with medical therapy.

| S-EPMC5834900 | biostudies-literature

Systematic review of percutaneous closure versus medical therapy in patients with cryptogenic stroke and patent foramen ovale.

Project description:ObjectivesTo provide a comprehensive comparison of patent foramen ovale (PFO) closure versus medical therapy in patients with cryptogenic stroke or transient ischaemic attack (TIA) and demonstrated PFO.DesignSystematic review with complete case meta-analysis and sensitivity analyses. Data sources included MEDLINE and EMBASE from 1980 up to May 2013. All randomised controlled trials (RCTs) comparing treatment with percutaneous catheter-based closure of PFO to anticoagulant or antiplatelet therapy in patients with cryptogenic stroke or TIA and echocardiographically confirmed PFO or atrial septal defect (ASD) were eligible.Participants1967 participants with prior stroke or TIA and echocardiographically confirmed PFO or ASD.Primary outcome measuresThe primary outcome of interest was recurrence of ischaemic stroke. We utilised data from complete cases only for the primary endpoint and combined data from trials to estimate the pooled risk ratio (RR) and associated 95% CIs calculated using random effects models.ResultsWe identified 284 potentially eligible articles of which three RCTs including 2303 patients proved eligible and 1967 patients had complete data. Of the 1026 patients randomised to PFO closure and followed to study conclusion 22 experienced non-fatal ischaemic strokes, as did 34 of 941 patients randomised to medical therapy (risk ratio (RR) 0.61, 95% CI 0.34 to 1.07; heterogeneity: p=0.34, I(2)=8%, confidence in estimates low due to risk of bias and imprecision). Analyses for ischaemic stroke restricted to 'per-protocol' patients or patients with concomitant atrial septal aneurysm did not substantially change the observed RRs. Complication rates associated with either PFO closure or medical therapy were low.ConclusionsPooled data from three RCTs provides insufficient support that PFO closure is preferable to medical therapy for secondary prevention of cryptogenic stroke in patients with PFO.

| S-EPMC3948581 | biostudies-literature

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