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White Matter Lesions Predominantly Located in Deep White Matter Represent Embolic Etiology Rather Than Small Vessel Disease. Dement Neurocogn Disord 2023; 22:28-42. [PMID: 36814699 PMCID: PMC9939570 DOI: 10.12779/dnd.2023.22.1.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/15/2023] [Accepted: 01/28/2023] [Indexed: 02/17/2023] Open
Abstract
Background and Purpose We investigated the correlation between the deep distribution of white matter hyperintensity (WMH) (dWMH: WMH in deep and corticomedullary areas, with minimal periventricular WMH) and a positive agitated saline contrast echocardiography result. Methods We retrospectively recruited participants with comprehensive dementia evaluations, an agitated saline study, and brain imaging. The participants were classified into two groups according to WMH-distributions: dWMH and dpWMH (mainly periventricular WMH with or without deep WMH.) We hypothesized that dWMH is more likely associated with embolism, whereas dpWMH is associated with small-vessel diseases. We compared the clinical characteristics, WMH-distributions, and positive rate of agitated saline studies between the two groups. Results Among 90 participants, 27 and 12 met the dWMH and dpWMH criteria, respectively. The dWMH-group was younger (62.2±7.5 vs. 78.9±7.3, p<0.001) and had a lower prevalence of hypertension (29.6% vs. 75%, p=0.008), diabetes mellitus (3.7% vs. 25%, p=0.043), and hyperlipidemia (33.3% vs. 83.3%, p=0.043) than the dpWMH-group. Regarding deep white matter lesions, the number of small lesions (<3 mm) was higher in the dWMH-group(10.9±9.7) than in the dpWMH-group (3.1±6.4) (p=0.008), and WMH was predominantly distributed in the border-zones and corticomedullary areas. Most importantly, the positive agitated saline study rate was higher in the dWMH-group than in the dpWMH-group (81.5% vs. 33.3%, p=0.003). Conclusions The dWMH-group with younger participants had fewer cardiovascular risk factors, showed more border-zone-distributions, and had a higher agitated saline test positivity rate than the dpWMH-group, indicating that corticomedullary or deep WMH-distribution with minimal periventricular WMH suggests embolic etiologies.
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2
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Yogeswaran V, Chung CJ, Kirkpatrick JN. Exertional desaturations after COVID-19: A case for PFO closure. Echocardiography 2022; 39:1635-1638. [PMID: 36447125 PMCID: PMC9878087 DOI: 10.1111/echo.15500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/16/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
We present a case of a woman with past medical history notable for mild COVID-19 infection who presented with dyspnea on exertion, then developed progressively worsening exertional desaturations and was found to have a patent foramen ovale (PFO). Extensive cardiopulmonary testing revealed no clear alternate etiology for her symptoms. After much discussion, she underwent successful closure of the PFO with complete resolution of her symptoms and significantly improved exertional desaturation.
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Affiliation(s)
- Vidhushei Yogeswaran
- University of Washington Medical CenterDivision of CardiologySeattleWashingtonUSA
| | - Christine J. Chung
- University of Washington Medical CenterDivision of CardiologySeattleWashingtonUSA
| | - James N. Kirkpatrick
- University of Washington Medical CenterDivision of CardiologySeattleWashingtonUSA
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3
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Diagnostic Accuracy of Transthoracic Echocardiography With Contrast for Detection of Right-to-Left Shunt: A Systematic Review and Meta-analysis. Can J Cardiol 2022; 38:1948-1958. [PMID: 35995285 DOI: 10.1016/j.cjca.2022.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 08/15/2022] [Accepted: 08/15/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The clinical utility of transthoracic echocardiography with contrast (TTE-C) for detection of right-to-left shunt (RLS) remains unknown. In this meta-analysis we evaluated the accuracy of TTE-C for RLS diagnosis compared with transesophageal echocardiography (TEE) as the reference standard. METHODS A systematic review and meta-analysis was performed using a search of MEDLINE, EMBASE, PubMed, and Cochrane library databases. Studies that were included provided data to assess sensitivity and specificity of TTE-C compared with TEE for RLS detection. RESULTS A total of 35 studies, involving 4209 patients, were analyzed. The average patient age was 49.1 ± 11.2 years and 53.9% were male. For RLS detection in the entire cohort, TTE-C sensitivity was 73% (95% confidence interval [CI], 66%-80%) and specificity was 94% (95% CI, 92%-96%). The sensitivity of TTE-C was 80% (95% CI, 74%-86%) in studies published in 2000 or later compared with 51% (95% CI, 36%-65%) in those published before 2000. In studies that used harmonic imaging, TTE-C sensitivity was 82% (95% CI, 77%-87%) and specificity was 95% (95% CI, 93%-97%). Among those with patent foramen ovale closure indications, TTE-C sensitivity was 74% (95% CI, 59%-89%) and specificity was 98% (95% CI, 95%-100%). In patients in whom RLS was diagnosed using a guideline-suggested 3 cardiac cycle cutoff, TTE-C sensitivity was 75% (95% CI, 66%-83%) and specificity was 94% (95% CI, 92%-97%). Provocative manoeuvres increased sensitivity by approximately 40%. CONCLUSIONS TTE-C offers excellent specificity and moderate sensitivity for RLS diagnosis compared with TEE, and it might therefore serve as an initial screening modality for selected patients with a high likelihood of having RLS and for indications for treatment.
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4
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Wang S, Zhu G, Liu Z, Zhou J, Zang W. Only transesophageal echocardiography guided patent foramen ovale closure: A single-center experience. Front Surg 2022; 9:977959. [PMID: 36303848 PMCID: PMC9592899 DOI: 10.3389/fsurg.2022.977959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 09/22/2022] [Indexed: 11/13/2022] Open
Abstract
Background An increasing number of studies have proved that patent foramen ovale (PFO) occlusion could reduce the incidence of recurrent stroke more than drug therapy alone under certain conditions. Which is the "best" guidance technique still remains to be discussed. Methods A single center retrospective study enrolled 120 patients (mean age 52.51 ± 14.29 years) who underwent PFO closure between April 2019 and March 2021. 87 patients (72.5%) had suffered cryptogenic stroke (CS) at least one time, and 24 patients (20%) had repetitive episodes of hemicrania unsourced. 65 patients were in the transesophageal echocardiography (TEE) guidance group (T-group), and the other 55 patients were in the angiographic guidance group (A-group). Results There were no significant differences in crucial clinical characteristics between the two groups. In T-group, the procedural success rate was higher (100% vs. 92.7%, P = 0.028), and the procedural time was shorter (23.15 ± 13.87 vs. 25.75 ± 7.19, P = 0.001). No difference was detected in the procedural complication rate. Follow-up were performed at least 12 months. At 12 months, new atrial fibrillation occurred in 1 patient (1.5%) in the T-group and in 1 patient (1.8%) in the A-group (P = 0.905). Residual shunt occurred in 1 patient (1.5%) in the T-group and in 3 patients (5.5%) in the A-group (P = 0.236). Recurrent cerebral ischemia occurred in 2 patient (3.1%) in the T-group and in 2 patients (3.6%) in the A-group (P = 0.865). Conclusion The use of only intra-procedural TEE guidance for PFO closure is safe and effective. The whole procedure can be performed without fluoroscopy and contrast medium. The short and medium follow-up results are satisfactory, especially in the residual shunt.
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Affiliation(s)
| | | | | | - Jian Zhou
- Correspondence: Wangfu Zang Jian Zhou
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D'Andrea A, Fabiani D, Cante L, Caputo A, Sabatella F, Riegler L, Alfano G, Russo V. Transcranial Doppler ultrasound: Clinical applications from neurological to cardiological setting. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:1212-1223. [PMID: 36218211 DOI: 10.1002/jcu.23344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
Transcranial Doppler (TCD) ultrasonography is a rapid, noninvasive, real-time, and low-cost imaging technique. It is performed with a low-frequency (2 MHz) probe in order to evaluate the cerebral blood flow (CBF) and its pathological alterations, through specific acoustic windows. In the recent years, TCD use has been expanded across many clinical settings. Actually, the most widespread indication for TCD exam is represented by the diagnosis of paradoxical embolism, due to patent foramen ovale, in young patients with cryptogenic stroke. In addition, TCD has also found useful applications in neurological care setting, including the following: cerebral vasospasm following acute subarachnoid hemorrhage, brain trauma, cerebrovascular atherosclerosis, and evaluation of CBF and cerebral autoregulation after an ischemic stroke event. The present review aimed to describe the most recent evidences of TCD utilization from neurological to cardiological setting.
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Affiliation(s)
- Antonello D'Andrea
- Cardiology Unit, Umberto I Hospital, University of Campania "Luigi Vanvitelli", Nocera Inferiore, Italy
| | - Dario Fabiani
- Cardiology Unit, Department of Medical Translational Sciences, University of Campania "Luigi Vanvitelli"-Monaldi Hospital, Naples, Italy
| | - Luigi Cante
- Cardiology Unit, Department of Medical Translational Sciences, University of Campania "Luigi Vanvitelli"-Monaldi Hospital, Naples, Italy
| | - Adriano Caputo
- Cardiology Unit, Department of Medical Translational Sciences, University of Campania "Luigi Vanvitelli"-Monaldi Hospital, Naples, Italy
| | - Francesco Sabatella
- Cardiology Unit, Department of Medical Translational Sciences, University of Campania "Luigi Vanvitelli"-Monaldi Hospital, Naples, Italy
| | - Lucia Riegler
- Cardiology Unit, Umberto I Hospital, University of Campania "Luigi Vanvitelli", Nocera Inferiore, Italy
| | - Gabriele Alfano
- Cardiology Unit, Umberto I Hospital, University of Campania "Luigi Vanvitelli", Nocera Inferiore, Italy
| | - Vincenzo Russo
- Cardiology Unit, Department of Medical Translational Sciences, University of Campania "Luigi Vanvitelli"-Monaldi Hospital, Naples, Italy
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A 76-Year-Old Man with Exertional Hypoxemia after Left Single Lung Transplantation. Ann Am Thorac Soc 2022; 19:1591-1595. [PMID: 36048119 DOI: 10.1513/annalsats.202202-172cc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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7
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Aortic Root Downward Movement as a Novel Method for Identification of an Adequately Performed Valsalva Maneuver to Detect Patent Foramen Ovale during Transesophageal Echocardiograph. Diagnostics (Basel) 2022; 12:diagnostics12040980. [PMID: 35454028 PMCID: PMC9027372 DOI: 10.3390/diagnostics12040980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/06/2022] [Accepted: 04/11/2022] [Indexed: 12/04/2022] Open
Abstract
The Valsalva maneuver (VM) is the most sensitive auxiliary method for the detection of patent foramen ovale (PFO), but it is difficult to assess whether the maneuver is adequately performed during transesophageal echocardiography (TEE). In this study, we tried to use aortic root downward movement as a novel method for judging whether VM was adequate or not, and to evaluate whether this novel method can increase the sensitivity of detecting PFO. A total of 224 patients with clinically suspected PFO were enrolled in this study. These patients were injected with activated normal saline to detect the right-to-left shunt (RLS), in the following three conditions: contrast-enhanced transthoracic echocardiography under adequate VM (AVM cTTE), contrast-enhanced TEE under non-adequate VM (non-AVM cTEE), and cTEE under adequate VM (AVM cTEE). A novel method in which the aorta root moves downward (movement range ≥16 mm) in the cTEE judged whether AVM was performed. The PFO detection rate and sensitivity of AVM cTEE were better than that of non-AVM cTEE (detection rate: 108 PFOs [48.2%] vs. 86 PFOs [38.4%], p = 0.036; sensitivity: 100% vs. 79.6%). Among AVM cTTE, non-AVM cTEE, and AVM cTEE, the RLS grade evaluation results were inconsistent, with significant differences (p < 0.05). Non-AVM cTEE had RLS underestimation or false negatives. Compared with non-AVM cTEE, AVM cTEE and AVM cTTE had better consistency in evaluating PFO RLS (kappa value = 0.675). Aortic root downward movement could be used as a novel method for judging the effectiveness of VM, which is critical for the detection of PFO in cTEE. Concerning effectiveness and convenience, this method should be promoted during the clinical detection of PFO.
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Importance of saline contrast transthoracic echocardiography for evaluating large right-to-left shunt in patent foramen ovale associated with cryptogenic stroke. Int J Cardiovasc Imaging 2021; 38:515-520. [PMID: 34546456 PMCID: PMC8926986 DOI: 10.1007/s10554-021-02418-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/13/2021] [Indexed: 11/25/2022]
Abstract
Transcatheter closure of patent foramen ovale (PFO) is an effective therapy for preventing recurrent stroke in very specific patient cohorts, such as cryptogenic stroke (CS). The identification of high-risk PFO, which is more likely to be linked to CS, is essential. This study aimed to assess the accuracy of saline contrast transthoracic echocardiography (TTE) for evaluating large right-to-left (RL) shunt. We enrolled 119 patients with or without CS who were confirmed to have PFO by transesophageal echocardiography (TEE) or catheterization. The severity of RL shunt evaluated by TTE and TEE was classified as follows: small (< 10 microbubbles), moderate (10–20 microbubbles), and large (> 20 microbubbles). With TTE, large RL shunt was observed in 94 (79%) of 119 patients, including 66 of 74 with CS and 28 of 45 without CS. With TEE, large RL shunt was observed in 33 (28 %) patients, including 26 with CS and 7 without CS. TTE showed large RL shunt more frequently than TEE (p < 0.01). Large RL shunt evaluated by TTE had a sensitivity of 89 % and an accuracy of 70 % for the association with CS, whereas large RL shunt evaluated by TEE had a sensitivity of 35% and an accuracy of 56 %. Accuracy was significantly greater in TTE than in TEE (p = 0.02). In conclusion, TTE identified large RL shunt associated with CS with higher sensitivity and accuracy compared to TEE. Our findings suggest that the decision for device closure should be made based on the severity of RL shunt by TTE.
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9
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Cho K, Feneley M, Holloway C. Atrial Septal Aneurysms - A Clinically Relevant Enigma? Heart Lung Circ 2021; 31:17-24. [PMID: 34507890 DOI: 10.1016/j.hlc.2021.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 11/25/2022]
Abstract
Atrial septal aneurysms (ASAs) are often seen during routine cardiac imaging, though their clinical relevance has been poorly defined. The aneurysmal, and often mobile, inter-atrial septum is frequently associated with other clinically relevant structural cardiac abnormalities, particularly patent foramen ovale (PFO). Whilst ASAs have previously been considered an incidental finding, a well-endowed atrial septum provides more than visual interest, including insights into atrial function and intra-atrial pressures, and has important clinical implications in PFO-associated stroke, migraines, and arrhythmias. This review outlines diagnostic challenges when assessing ASAs using all imaging modalities and the clinical implications of this common anatomical variant.
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Affiliation(s)
- Kenneth Cho
- Department of Cardiology, St Vincent's Hospital, Sydney, NSW, Australia; University of New South Wales, Sydney, NSW, Australia; Western Sydney University, Sydney, NSW, Australia
| | - Michael Feneley
- Department of Cardiology, St Vincent's Hospital, Sydney, NSW, Australia; University of New South Wales, Sydney, NSW, Australia
| | - Cameron Holloway
- Department of Cardiology, St Vincent's Hospital, Sydney, NSW, Australia; University of New South Wales, Sydney, NSW, Australia.
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Cohen A, Donal E, Delgado V, Pepi M, Tsang T, Gerber B, Soulat-Dufour L, Habib G, Lancellotti P, Evangelista A, Cujec B, Fine N, Andrade MJ, Sprynger M, Dweck M, Edvardsen T, Popescu BA. EACVI recommendations on cardiovascular imaging for the detection of embolic sources: endorsed by the Canadian Society of Echocardiography. Eur Heart J Cardiovasc Imaging 2021; 22:e24-e57. [PMID: 33709114 DOI: 10.1093/ehjci/jeab008] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 01/07/2021] [Indexed: 12/28/2022] Open
Abstract
Cardioaortic embolism to the brain accounts for approximately 15-30% of ischaemic strokes and is often referred to as 'cardioembolic stroke'. One-quarter of patients have more than one cardiac source of embolism and 15% have significant cerebrovascular atherosclerosis. After a careful work-up, up to 30% of ischaemic strokes remain 'cryptogenic', recently redefined as 'embolic strokes of undetermined source'. The diagnosis of cardioembolic stroke remains difficult because a potential cardiac source of embolism does not establish the stroke mechanism. The role of cardiac imaging-transthoracic echocardiography (TTE), transoesophageal echocardiography (TOE), cardiac computed tomography (CT), and magnetic resonance imaging (MRI)-in the diagnosis of potential cardiac sources of embolism, and for therapeutic guidance, is reviewed in these recommendations. Contrast TTE/TOE is highly accurate for detecting left atrial appendage thrombosis in patients with atrial fibrillation, valvular and prosthesis vegetations and thrombosis, aortic arch atheroma, patent foramen ovale, atrial septal defect, and intracardiac tumours. Both CT and MRI are highly accurate for detecting cavity thrombosis, intracardiac tumours, and valvular prosthesis thrombosis. Thus, CT and cardiac magnetic resonance should be considered in addition to TTE and TOE in the detection of a cardiac source of embolism. We propose a diagnostic algorithm where vascular imaging and contrast TTE/TOE are considered the first-line tool in the search for a cardiac source of embolism. CT and MRI are considered as alternative and complementary tools, and their indications are described on a case-by-case approach.
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Affiliation(s)
- Ariel Cohen
- Assistance Publique-Hôpitaux de Paris, Saint-Antoine and Tenon Hospitals, Department of Cardiology, and Sorbonne University, Paris, France.,INSERM unit UMRS-ICAN 1166; Sorbonne-Université, Paris, France
| | - Erwan Donal
- University of Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, F-35000 Rennes, France
| | - Victoria Delgado
- Department of Cardiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - Mauro Pepi
- Centro Cardiologico Monzino, IRCCS, Via Parea 4, 20141, Milan, Italy
| | - Teresa Tsang
- Division of Cardiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Bernhard Gerber
- Service de Cardiologie, Département Cardiovasculaire, Cliniques Universitaires St. Luc, Division CARD, Institut de Recherche Expérimental et Clinique (IREC), UCLouvainAv Hippocrate 10/2803, B-1200 Brussels, Belgium
| | - Laurie Soulat-Dufour
- Assistance Publique-Hôpitaux de Paris, Saint-Antoine and Tenon Hospitals, Department of Cardiology, and Sorbonne University, Paris, France.,INSERM unit UMRS-ICAN 1166; Sorbonne-Université, Paris, France
| | - Gilbert Habib
- Aix Marseille Univ, IRD, MEPHI, IHU-Méditerranée Infection, APHM, La Timone Hospital, Cardiology Department, Marseille, France
| | - Patrizio Lancellotti
- University of Liège Hospital, GIGA Cardiovascular Sciences, Department of Cardiology, CHU SartTilman, Liège, Belgium.,Gruppo Villa Maria Care and Research, Maria Cecilia Hospital, Cotignola, and Anthea Hospital, Bari, Italy
| | - Arturo Evangelista
- Servei de Cardiologia. Hospital Universitari Vall d'Hebron-VHIR. CIBER-CV. Pº Vall d'Hebron 119. 08035. Barcelona. Spain
| | - Bibiana Cujec
- Division of Cardiology, University of Alberta, 2C2.50 Walter Mackenzie Health Sciences Center, 8440 112 St NW, Edmonton, Alberta, Canada T6G 2B7
| | - Nowell Fine
- University of Calgary, Libin Cardiovascular Institute, South Health Campus, 4448 Front Street Southeast, Calgary, Alberta T3M 1M4, Canada
| | - Maria Joao Andrade
- Maria Joao Andrade Cardiology Department, Hospital de Santa Cruz-Centro Hospitalar Lisboa Ocidental, Av. Prof. Dr. Reinaldo dos Santos 2790-134 Carnaxide, Portugal
| | - Muriel Sprynger
- Department of Cardiology-Angiology, University Hospital Liège, Liège, Belgium
| | - Marc Dweck
- British Heart Foundation, Centre for Cardiovascular Science, Edinburgh and Edinburgh Imaging Facility QMRI, University of Edinburgh, United Kingdom
| | - Thor Edvardsen
- Faculty of medicine, Oslo University, Oslo, Norway and Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Bogdan A Popescu
- Cardiology Department, University of Medicine and Pharmacy 'Carol Davila', Emergency Institute for Cardiovascular Diseases 'Prof. Dr. C. C. Iliescu', Sos. Fundeni 258, sector 2, 022328 Bucharest, Romania
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Lee M, Oh JH. Echocardiographic diagnosis of right-to-left shunt using transoesophageal and transthoracic echocardiography. Open Heart 2020; 7:openhrt-2019-001150. [PMID: 32763965 PMCID: PMC7412608 DOI: 10.1136/openhrt-2019-001150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 03/09/2020] [Accepted: 06/01/2020] [Indexed: 01/16/2023] Open
Abstract
Background The diagnosis and quantification of right-to-left shunt (RLS) using transthoracic echocardiography (TTE) as well as transoesophageal echocardiography (TOE) have not been well established. We aimed to diagnose RLS by TOE using direct visualisation of the shunt and to compare the diagnosis with TTE diagnosis using conventional methods. Methods and results We evaluated 141 patients with ischaemic stroke for RLS by both non-sedation TOE and TTE using saline contrast and Valsalva manoeuvre. The amount (graded as 0 to IV) and timing of RLS were demonstrated. All patients were classified into four groups by TOE based on direct visualisation of shunt through a patent foramen ovale (PFO) or either pulmonary vein: no shunt (group 1: n=11), PFO (group 2: n=47), pulmonary RLS (group 3: n=25) and indeterminate RLS (group 4: n=58). All cases in group 3 showed delayed shunt, and all cases in group 4 had small shunt. On TTE findings, all cases with early appearing large shunt (cardiac cycles ≤3 and shunt grade ≥III) were group 2. Six of the eight patients with delayed appearing large shunt on TTE were group 3. TTE diagnosis of PFO using criteria of cardiac beats ≤3 and grade ≥II had a sensitivity of 85% and a specificity of 98% compared with TOE diagnosis using shunt visualisation. Conclusions Compared with TOE using shunt visualisation, TTE accurately diagnosed large PFO using criteria of cardiac cycles ≤3 and shunt grade ≥III. TTE possibly diagnosed pulmonary shunt using criteria of cardiac cycles >3 and shunt grade ≥III. Both modalities showed limitations in diagnosing small amount of RLS.
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Affiliation(s)
- Mirae Lee
- Division of Cardiology, Department of Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Gyeongsangnam-Do, Republic of Korea
| | - Ju Hyeon Oh
- Division of Cardiology, Department of Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Gyeongsangnam-Do, Republic of Korea
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Abstract
PURPOSE OF REVIEW Cardiac imaging after ischemic stroke or transient ischemic attack (TIA) is used to identify potential sources of cardioembolism, to classify stroke etiology leading to changes in secondary stroke prevention, and to detect frequent comorbidities. This article summarizes the latest research on this topic and provides an approach to clinical practice to use cardiac imaging after stroke. RECENT FINDINGS Echocardiography remains the primary imaging method for cardiac work-up after stroke. Recent echocardiography studies further demonstrated promising results regarding the prediction of non-permanent atrial fibrillation after ischemic stroke. Cardiac magnetic resonance imaging and computed tomography have been tested for their diagnostic value, in particular in patients with cryptogenic stroke, and can be considered as second line methods, providing complementary information in selected stroke patients. Cardiac imaging after ischemic stroke or TIA reveals a potential causal condition in a subset of patients. Whether systematic application of cardiac imaging improves outcome after stroke remains to be established.
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Affiliation(s)
- S Camen
- Clinic for Cardiology, University Heart and Vascular Center Hamburg, Hamburg, Germany
- DZHK (German Center for Cardiovascular Research) (partner site Hamburg/Kiel/Luebeck), Berlin, Germany
| | - K G Haeusler
- Department of Neurology, Universitätsklinikum Würzburg, Würzburg, Germany
| | - R B Schnabel
- Clinic for Cardiology, University Heart and Vascular Center Hamburg, Hamburg, Germany.
- DZHK (German Center for Cardiovascular Research) (partner site Hamburg/Kiel/Luebeck), Berlin, Germany.
- University Heart Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
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13
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Diagnosis of Patent Foramen Ovale: The Combination of Contrast Transcranial Doppler, Contrast Transthoracic Echocardiography, and Contrast Transesophageal Echocardiography. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8701759. [PMID: 32185222 PMCID: PMC7060853 DOI: 10.1155/2020/8701759] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 02/01/2020] [Indexed: 01/27/2023]
Abstract
Objectives To access the distinct values of contrast transcranial Doppler (cTCD), contrast transthoracic echocardiography (cTTE), and contrast transesophageal echocardiography (cTEE) in the diagnosis of right-to-left shunt (RLS) due to patent foramen ovale (PFO) and to define the most practical strategy for the diagnosis of PFO. Methods 102 patients with a high clinical suspicion for PFO had simultaneous cTCD, cTTE, and cTEE performed. The agitated saline mixed with blood was used to detect right-to-left shunt (RLS). Results In all 102 patients, the shunt was detected at rest by cTCD in 60.78% of cases, by cTTE in 42.16%, and by cTEE in 47.06%. The positive results of all 3 techniques with Valsalva maneuver (VM) were significantly improved. cTCD showed higher pick-up rate than cTTE (98.04% vs. 89.22%; χ2 = 12.452, p < 0.05) and the cTEE (98.04% vs. 96.08%; nonsignificant difference) in the diagnosis of PFO. Nevertheless, cTEE, compared with cTTE, underestimated shunting in 44% of patients. The diameter of both PFO entrance and exit was significantly greater in patients with a severe shunt compared with a mild shunt (2.8 ± 1.0 mm vs. 2.0 ± 0.7 mm, t = 3.135, p < 0.05) and the cTEE (98.04% vs. 96.08%; nonsignificant difference) in the diagnosis of PFO. Nevertheless, cTEE, compared with cTTE, underestimated shunting in 44% of patients. The diameter of both PFO entrance and exit was significantly greater in patients with a severe shunt compared with a mild shunt (2.8 ± 1.0 mm vs. 2.0 ± 0.7 mm, t = 3.135, p < 0.05) and the cTEE (98.04% vs. 96.08%; nonsignificant difference) in the diagnosis of PFO. Nevertheless, cTEE, compared with cTTE, underestimated shunting in 44% of patients. The diameter of both PFO entrance and exit was significantly greater in patients with a severe shunt compared with a mild shunt (2.8 ± 1.0 mm vs. 2.0 ± 0.7 mm, t = 3.135, p < 0.05) and the cTEE (98.04% vs. 96.08%; nonsignificant difference) in the diagnosis of PFO. Nevertheless, cTEE, compared with cTTE, underestimated shunting in 44% of patients. The diameter of both PFO entrance and exit was significantly greater in patients with a severe shunt compared with a mild shunt (2.8 ± 1.0 mm vs. 2.0 ± 0.7 mm, Conclusions The best method to diagnose PFO should be the combination of cTCD, cTTE, and cTEE. And cTCD should be applied as the first choice for screening RLS. Then, cTTE should be performed to quantify the severity of the shunt. Last but not least, cTEE should be performed to assess the morphologies of PFO when the closure is planned. The study provides for clinicians the most practical strategy for diagnosing PFO in the future. However, further trials with a large sample size are required to confirm this finding.
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Takaya Y, Watanabe N, Ikeda M, Akagi T, Nakayama R, Nakagawa K, Toh N, Ito H. Importance of Abdominal Compression Valsalva Maneuver and Microbubble Grading in Contrast Transthoracic Echocardiography for Detecting Patent Foramen Ovale. J Am Soc Echocardiogr 2020; 33:201-206. [DOI: 10.1016/j.echo.2019.09.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 09/19/2019] [Accepted: 09/19/2019] [Indexed: 11/24/2022]
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Modified Method of Contrast Transthoracic Echocardiography for the Diagnosis of Patent Foramen Ovale. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9828539. [PMID: 31211145 PMCID: PMC6532309 DOI: 10.1155/2019/9828539] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 05/02/2019] [Indexed: 12/23/2022]
Abstract
Purpose To compare the sensitivity and specificity of modified and traditional methods of contrast echocardiography of the right portion of the heart in patients with a suspicion of patent foramen ovale (PFO). Methods The study population consisted of 506 patients with high clinical suspicion of PFO. The traditional Valsalva maneuver consists of expiration against a closed glottis after a full inspiration. A modified Valsalva maneuver was performed with a handmade pressure monitoring device, which measured pressure during performance of the Valsalva maneuver. Modified and traditional methods of contrast echocardiography were performed among all patients. Contrast transesophageal echocardiography (TEE) was regarded as the gold standard. Results A total of 279 patients with PFO were confirmed by TEE. 259 cases (sensitivity: 92.83%) were detected by a modified method of contrast echocardiography of the right portion of the heart, while 234 cases were detected using the traditional method (sensitivity: 83.87%). The sensitivity of modified contrast echocardiography of the right portion of the heart was significantly higher than that of the traditional method (92.83% vs. 83.87%, P=0.001). However, there was no significant difference in the specificity of the two methods for the diagnosis of PFO (97.35% vs. 96.03%, P=0.431). Additionally, the results of semiquantitative evaluation of PFO using modified method failed to show a more positive rate than shown by the traditional method (Z=−1.782, P=0.075). Conclusions Modified contrast echocardiography of the right portion of the heart yielded a higher sensitivity than the traditional method, which contributed to the diagnosis of cardiac PFO. The research was a part of a register study (https://register.clinicaltrials.gov/ ClinicalTrials ID: NCT02777359).
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Chen J, Chen L, Hu W, Ni X, Zhang Z, Feng X, Fan Z, Chen C, Qiu F, Shao B. A comparison of contrast transthoracic echocardiography and contrast transcranial Doppler in cryptogenic stroke patients with patent foramen ovale. Brain Behav 2019; 9:e01283. [PMID: 30941931 PMCID: PMC6520470 DOI: 10.1002/brb3.1283] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 03/07/2019] [Accepted: 03/14/2019] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE In recent years, increasing attention has been paid to cryptogenic stroke (CS) caused by the patent foramen ovale (PFO). This study aims to compare contrast transthoracic echocardiography (cTTE) and contrast transcranial Doppler (cTCD) to determine whether cTTE is more suitable and reliable than cTCD for clinical use. METHODS From March 2017 to May 2018, patients who suffered from migraines, stroke, hypomnesis, or asymptomatic stroke found casually were included in our study. Patients with CS were semirandomly divided into two groups (cTTE and cTCD) according to the date of the outpatient visit. Patients with either of the examination above found positive were selected to finish transesophageal echocardiography (TEE). RESULTS In our study, the sensitivities of group cTTE positive (group cTTE+) and group cTCD positive (group cTCD+) did not have any statistical difference (89% vs. 80%, p = 0.236). Focusing on group cTCD+, we discovered that the semiquantitative shunt grading was not correlated with whether a PFO was present or not (p = 0.194). However, once the PFO has been diagnosed, the shunt grading was shown to be related to the width of the gaps (p = 0.032, pdeviation = 0.03). CONCLUSION Both cTTE and the cTCD can be used for preliminary PFO findings. The semiquantitative shunt grading of cTCD and cTTE can suggest the size of the PFO and the next course of treatment. The cTTE may be more significant to a safe PFO (a PFO does not have right-to-left shunts, RLSs). Combining cTTE and TEE could help diagnose PFO and assess CS risk.
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Affiliation(s)
- Jie Chen
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Luyun Chen
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wangwang Hu
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xianda Ni
- Department of Ultrasonography, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zengrui Zhang
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaowen Feng
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zijian Fan
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Cuiping Chen
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Fengzhen Qiu
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bei Shao
- Department of Neurology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Di Biase L, Burkhardt JD, Horton R, Sanchez J, Mohanty P, Mohanty S, Bailey S, Gallinghouse GJ, Natale A, Krishnan SC. Closure of foramen ovale triggered by injury to tunnel surfaces of septum primum and secundum. J Interv Card Electrophysiol 2019; 55:63-71. [DOI: 10.1007/s10840-019-00510-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 01/07/2019] [Indexed: 11/28/2022]
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Zhang L, Zhu X, Qiu X, Li Y, Chen Y, Wang H, He S, Lai W, Peng A, Ning M, Chen L. Relationship between right-to-left shunt and migraine in patients with epilepsy: a single-centre, cross-sectional study in China. BMJ Open 2018; 8:e024144. [PMID: 30297353 PMCID: PMC6194457 DOI: 10.1136/bmjopen-2018-024144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES To investigate the relationship between right-to-left shunt and migraine to account for the unexplained high prevalence of migraine in patients with epilepsy. DESIGN This is a cross-sectional study. The diagnosis and interview process of patients with migraine was based on the International Classification of Headache Disorders-3 beta in patients with epilepsy. Participants underwent transthoracic echocardiography (TTE) with contrast medium to identify right-to-left shunt. The highest number of microbubbles were recorded in the left atrium before the complete microbubble outflow of the right atrium. A moderate-to-large shunt was defined as the presence of 10 or more microbubbles. SETTING A single-centre, cross-sectional study in China, 2015-2017. PARTICIPANTS Patients with epilepsy. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome measures were the prevalence of migraine, the prevalence of right-to-left shunt in patients with migraine and those without migraine, and the prevalence of migraine in different degrees of shunting. RESULTS Three hundred thirty-nine participants with epilepsy who completed TTE were included in the analysis. The overall prevalence of migraine was 23.0%. One-third of the migraineurs had mild right-to-left shunt and one-fifth of the migraineurs had moderate-to-large right-to-left shunt. Patients with mild shunt did not have a higher prevalence of migraine than those without shunt (26.3% vs 18.1%, p=0.102); however, a higher prevalence of migraine was found in patients with moderate-to-large shunt (39.0% vs 18.1%, OR=2.90, 95% CI=1.41 to 5.98, p=0.003). Patients with migraine and patients without migraine had similar prevalence of mild shunt; however, patients with migraine had more moderate-to-large shunt (20.5% vs 9.6%, p=0.002). Right-to-left shunt and female were factors predicting migraine prevalence. CONCLUSIONS One-fifth of migraineurs were correlated with moderate-to-large right-to-left shunt which could be an underlying cause of migraine in epilepsy.
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Affiliation(s)
- Lin Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xi Zhu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiangmiao Qiu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yajiao Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yucheng Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hui Wang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shixu He
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wanlin Lai
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Anjiao Peng
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Mingming Ning
- Department of Neurology, Cardio-Neurology Clinic, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lei Chen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Schwartz BG, Alexander CT, Grayburn PA, Schussler JM. Utility of routine transesophageal echocardiography in patients with stroke or transient ischemic attack. Proc (Bayl Univ Med Cent) 2018; 31:401-403. [PMID: 30948966 DOI: 10.1080/08998280.2018.1471935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 04/24/2018] [Accepted: 04/30/2018] [Indexed: 02/03/2023] Open
Abstract
In several series of patients with presumed stroke, transesophageal echocardiography (TEE) has seemed advantageous over transthoracic echocardiography (TTE) in that it improves detection of cardiac sources and can lead to changes in the methods of treatment. We hypothesized that the real-world application of TEE in our institution produced results at variance from those previously reported. Our study of 219 patients, referred for TEE for an indication of stroke or transient ischemic attack, found few relevant findings that would have indicated a new diagnosis or required a change in treatment. These results suggest that for most patients in whom TEE is ordered, either a TTE or no cardiac testing would suffice.
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Affiliation(s)
| | - Chris T Alexander
- Department of Internal Medicine, Baylor University Medical CenterDallasTexas
| | - Paul A Grayburn
- The Baylor Scott & White Heart Hospital, Plano,Texas.,Division of Cardiology, Baylor University Medical CenterDallasTexas.,The Baylor Scott & White Heart and Vascular HospitalDallasTexas
| | - Jeffrey M Schussler
- Division of Cardiology, Baylor University Medical CenterDallasTexas.,The Baylor Scott & White Heart and Vascular HospitalDallasTexas.,Texas A&M College of MedicineDallasTexas
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Vorselaars VMM, Velthuis S, Huitema MP, Hosman AE, Westermann CJJ, Snijder RJ, Mager JJ, Post MC. Reproducibility of right-to-left shunt quantification using transthoracic contrast echocardiography in hereditary haemorrhagic telangiectasia. Neth Heart J 2018; 26:203-209. [PMID: 29497946 PMCID: PMC5876176 DOI: 10.1007/s12471-018-1094-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Aim Transthoracic contrast echocardiography (TTCE) is recommended for screening of pulmonary arteriovenous malformations (PAVMs) in hereditary haemorrhagic telangiectasia. Shunt quantification is used to find treatable PAVMs. So far, there has been no study investigating the reproducibility of this diagnostic test. Therefore, this study aimed to describe inter-observer and inter-injection variability of TTCE. Methods We conducted a prospective single centre study. We included all consecutive persons screened for presence of PAVMs in association with hereditary haemorrhagic telangiectasia in 2015. The videos of two contrast injections per patient were divided and reviewed by two cardiologists blinded for patient data. Pulmonary right-to-left shunts were graded using a three-grade scale. Inter-observer and inter-injection agreement was calculated with κ statistics for the presence and grade of pulmonary right-to-left shunts. Results We included 107 persons (accounting for 214 injections) (49.5% male, mean age 45.0 ± 16.6 years). A pulmonary right-to-left shunt was present in 136 (63.6%) and 131 (61.2%) injections for observer 1 and 2, respectively. Inter-injection agreement for the presence of pulmonary right-to-left shunts was 0.96 (95% confidence interval (CI) 0.9–1.0) and 0.98 (95% CI 0.94–1.00) for observer 1 and 2, respectively. Inter-injection agreement for pulmonary right-to-left shunt grade was 0.96 (95% CI 0.93–0.99) and 0.95 (95% CI 0.92–0.98) respectively. There was disagreement in right-to-left shunt grade between the contrast injections in 11 patients (10.3%). Inter-observer variability for presence and grade of the pulmonary right-to-left shunt was 0.95 (95% CI 0.91–0.99) and 0.97 (95% CI 0.95–0.99) respectively. Conclusion TTCE has an excellent inter-injection and inter-observer agreement for both the presence and grade of pulmonary right-to-left shunts. Electronic supplementary material The online version of this article (10.1007/s12471-018-1094-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- V M M Vorselaars
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands.
| | - S Velthuis
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - M P Huitema
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - A E Hosman
- Department of Pulmonology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - C J J Westermann
- Department of Pulmonology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - R J Snijder
- Department of Pulmonology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - J J Mager
- Department of Pulmonology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - M C Post
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands
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Imaging in Congenital and Hereditary Abnormalities of the Interventricular Septum: Clinical Anatomy and Diagnostic Clues. J Thorac Imaging 2018; 33:147-155. [PMID: 29489583 DOI: 10.1097/rti.0000000000000326] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Early identification of congenital heart diseases, specifically those affecting the structural integrity and function of the interventricular septum, in childhood is important toward decreasing the morbidity and mortality of those affected. We review the pertinent clinical and imaging manifestations for those with ventricular septal defects, ventricular septal aneurysms, tetralogy of Fallot, and hypertrophic (obstructive) cardiomyopathy, in addition to discussing first-line imaging studies, including echocardiography, and indications for advanced imaging.
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What is Clinical Efficacy of Transesophageal Echocardiography in Patients With Cryptogenic Stroke? Neurologist 2018; 23:30-33. [DOI: 10.1097/nrl.0000000000000155] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Hoole SP, Hernández-Sánchez J, Davies WR, McNab DC, Calvert PA, Rana BS, Shapiro LM, Davies MG. Effects of Patent Foramen Ovale Closure on Obstructive Sleep Apnea Syndrome: PCOSA Study. Can J Cardiol 2017; 33:1708-1715. [PMID: 29173609 DOI: 10.1016/j.cjca.2017.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/31/2017] [Accepted: 09/01/2017] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Previous studies have shown a higher prevalence of patent foramen ovale (PFO) in patients with obstructive sleep apnea syndrome (OSAS). Right to left shunting through a PFO may be encouraged by the respiratory physiology of OSAS, contributing to the disease pathophysiology. We assessed whether PFO closure would improve respiratory polygraphy parameters compared with baseline measurements in patients with OSAS. METHODS Twenty-six patients with newly diagnosed OSAS and a moderate-large PFO (prevalence, 18% of 143 patients screened) were referred for PFO closure. The oxygen desaturation index (ODI), apnea-hypopnea index (AHI), Epworth Sleepiness Scale (ESS), 6-minute walk test (6MWT), and Sleep Apnea Quality of Life Index (SAQLI) results were compared in these patients at baseline (before continuous positive pressure ventilation [CPAP]) and at 6-month follow-up (after interrupting CPAP for 1 week). RESULTS All PFOs were safely sealed at 6 months, as confirmed by repeated transthoracic echocardiography. The ODI (44.8 [interquartile range (IQR), 31.2-63.5) vs 42.3 [IQR, 34.0-60.8]; P = 0.89) and AHI (47.9 [IQR, 31.5-65.2] vs 42.3 [IQR, 32.1-63]; P = 0.99) did not change after PFO closure nor did the 6MWT, although the ESS (13.0 [IQR, 12.0-16.8] vs 6.0 [IQR, 4.0-8.8]; P < 0.001) and the SAQLI (3.4 [IQR, 2.8-4.3] vs 4.4 [IQR, 3.9-5.3]; P < 0.001) did improve. CONCLUSIONS The prevalence of PFO in OSAS appears to be no higher than that in the general population. Although PFO closure is safe and effective, it did not improve respiratory polygraphy measures of OSAS severity. The improvement in the ESS and SAQLI likely reflect residual benefits from CPAP.
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Affiliation(s)
- Stephen P Hoole
- Cardiology Department, Papworth Hospital, Papworth Everard, United Kingdom.
| | - Jules Hernández-Sánchez
- Papworth Trials Unit Collaboration, Papworth Hospital, Papworth Everard, United Kingdom; MRC Biostatistics Unit, University of Cambridge, School of Clinical Medicine, Cambridge Institute of Public Health, Forvie Site, Cambridge, United Kingdom
| | - William R Davies
- Cardiology Department, Papworth Hospital, Papworth Everard, United Kingdom
| | - Duncan C McNab
- Cardiology Department, Papworth Hospital, Papworth Everard, United Kingdom
| | - Patrick A Calvert
- Cardiology Department, Papworth Hospital, Papworth Everard, United Kingdom
| | - Bushra S Rana
- Cardiology Department, Papworth Hospital, Papworth Everard, United Kingdom
| | - Leonard M Shapiro
- Cardiology Department, Papworth Hospital, Papworth Everard, United Kingdom
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Mahmoud AN, Elgendy IY, Agarwal N, Tobis JM, Mojadidi MK. Identification and Quantification of Patent Foramen Ovale-Mediated Shunts: Echocardiography and Transcranial Doppler. Interv Cardiol Clin 2017; 6:495-504. [PMID: 28886841 DOI: 10.1016/j.iccl.2017.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Once deemed benign, patent foramen ovale (PFO)-mediated right-to-left shunting has now been linked to stroke, migraine, and hypoxemia. Contrast transesophageal echocardiography is considered the standard technique for identifying a PFO, allowing visualization of the atrial septal anatomy and differentiation from non-PFO right-to-left shunts. Transthoracic echocardiography is the most common method for PFO imaging, being cost-effective, but has the lowest sensitivity. Transcranial Doppler is highly sensitive but is unable to differentiate cardiac from pulmonary shunts; it is the best method to quantitate shunt severity, being more sensitive than transthoracic or transesophageal echocardiography so is our preferred screening method for PFO.
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Affiliation(s)
- Ahmed N Mahmoud
- Division of Cardiology, Department of Medicine, University of Florida, 1600 Southwest Archer Road, Gainesville, FL 32608, USA
| | - Islam Y Elgendy
- Division of Cardiology, Department of Medicine, University of Florida, 1600 Southwest Archer Road, Gainesville, FL 32608, USA
| | - Nayan Agarwal
- Division of Cardiology, Department of Medicine, University of Florida, 1600 Southwest Archer Road, Gainesville, FL 32608, USA
| | - Jonathan M Tobis
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Avenue, Factor Building CHS, Room B-976, Los Angeles, CA 90095, USA
| | - Mohammad Khalid Mojadidi
- Division of Cardiology, Department of Medicine, University of Florida, 1600 Southwest Archer Road, Gainesville, FL 32608, USA.
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Kara K, Sivrioğlu AK, Öztürk E, İncedayı M, Sağlam M, Arıbal S, Işılak Z, Mutlu H. The role of coronary CT angiography in diagnosis of patent foramen ovale. Diagn Interv Radiol 2017; 22:341-6. [PMID: 27152642 DOI: 10.5152/dir.2016.15570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
PURPOSE We aimed to examine the incidence of patent foramen ovale (PFO) and atrial septal aneurysms (ASA) in the Turkish population using coronary computed tomography angiography (CTA); assess the feasibility of coronary CTA for PFO diagnosis by conducting a comparison with transthoracic echocardiography (TTE); and determine the diagnostic role and characteristics of the interatrial tunnel, free flap valve (FFV), and shunts. METHODS The present study was conducted retrospectively and included a sample of 782 patients. Coronary CTA results for all patients were evaluated for the following parameters: the presence of PFO, the degree of contrast jet (if present due to PFO), ASA existence, free flap valve (FFV) length, and PFO tunnel diameters (1 and 2). Coronary CTA and TTE results for PFO detection were also compared for 19 patients who underwent both procedures. RESULTS PFO was present in 118 patients (15%). In 19 patients who underwent both CTA and TTE, the shunt was present in 15 patients on TTE compared with nine patients on CTA. The sensitivity and specificity of CTA for shunt existence were 53% (8/15) and 75% (3/4), respectively. FFV was observed on CTA in 118 patients (15%). No significant relationship was observed between shunt existence and FFV length (P = 0.148), or between shunt existence and tunnel diameter-1 (P = 0.638) or diameter-2 (P = 0.058). ASAs were present in 16 patients (2%), while accompanying PFO was present in three patients (2.4%). CONCLUSION Coronary CTA constitutes a more practical and efficient alternative to TTE for PFO diagnosis. Further, it allows the clear visualization of anatomical details of the interatrial tunnel, shunts, and associated abnormalities and detects ASAs.
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Affiliation(s)
- Kemal Kara
- Department of Radiology, GATA Haydarpaşa Teaching Hospital, İstanbul, Turkey.
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Zhao E, Zhang Y, Kang C, Niu H, Zhao J, Sun L, Liu B. Influence of the Valsalva maneuver on cardiac hemodynamics and right to left shunt in patients with patent foramen ovale. Sci Rep 2017; 7:44280. [PMID: 28266661 PMCID: PMC5339784 DOI: 10.1038/srep44280] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 02/06/2017] [Indexed: 12/04/2022] Open
Abstract
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). Statistical analyses were performed using SPSS Version18.0. Compared to the resting state, mitral valve diastolic velocity E and A peaks at the strain phase of the Valsalva maneuver significantly decreased (P < 0.05), left ventricular end diastolic volume(LVEDV) and area(LVEDA) decreased significantly (P < 0.05), while E/A ratio of mitral valve, tricuspid valve systolic velocity E and A peaks and E/A ratio remained unchanged (P > 0.05). PFO hemodynamic changes mainly occurred in the left ventricle when the Valsalva maneuver was performed. The Valsalva maneuver increased pressure in the chest, then pulmonary venous return was impeded, which resulted in left ventricular limited filling, and E and A peaks decreased. The pressure of the left ventricle and atrium was lower than that of the right side, which resulted in right-to-left shunt (RLS) through PFO.
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Affiliation(s)
- Enfa Zhao
- Department of Ultrasound, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yafei Zhang
- Department of General Surgery, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chunmiao Kang
- Department of Ultrasound, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hua Niu
- Department of Ultrasound, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jing Zhao
- Department of Ultrasound, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Lei Sun
- Department of Ultrasound, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Baomin Liu
- Department of Ultrasound, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Transthoracic contrast echocardiography using vitamin B6 and sodium bicarbonate as contrast agents for the diagnosis of patent foramen ovale. Int J Cardiovasc Imaging 2017; 33:1125-1131. [PMID: 28176181 DOI: 10.1007/s10554-017-1088-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 01/28/2017] [Indexed: 10/20/2022]
Abstract
To evaluate the utility of transthoracic contrast echocardiography (cTTE) using vitamin B6 and sodium bicarbonate as contrast agents for diagnosing right-to-left shunt (RLS) caused by patent foramen ovale (PFO) compared to that of transesophageal echocardiography (TEE). We investigated 125 patients admitted to our neurology department with unexplained cerebral infarction and migraine. All patients underwent cTTE using vitamin B6 and sodium bicarbonate as contrast agents, after which they underwent transthoracic echocardiography. The Doppler signal was recorded during the Valsalva maneuver, and TEE examinations were performed. The feasibility, diagnostic sensitivity, and safety of cTTE and TEE for PFO recognition were compared. Evidence of PFO was found in 49 (39.20%) patients with cTTE, more than were detected with TEE (39, 31.20%) (χ2=5.0625, P=0.0244). cTTE had a sensitivity of 92.31% and a specificity of 84.88% for diagnosing PFO, showing high concordance with TEE for PFO recognition (κ=0.72). Further, results of a semi-quantitative evaluation of PFO-RLS by cTTE were better than those with TEE (Z=-2.011, P=0.044). No significant adverse reaction was discovered during cTTE examination. cTTE using vitamin B6 and sodium bicarbonate as contrast agents has relatively good sensitivity and specificity for diagnosing RLS caused by PFO when compared with those for TEE. Using vitamin B6 and sodium bicarbonate as contrast agents to perform cTTE is recommended for detecting and diagnosing the PFO due to its simplicity, non-invasive character, low cost, and high feasibility.
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Celeste F, Muratori M, Mapelli M, Pepi M. The Evolving Role and Use of Echocardiography in the Evaluation of Cardiac Source of Embolism. J Cardiovasc Echogr 2017; 27:33-44. [PMID: 28465991 PMCID: PMC5412748 DOI: 10.4103/jcecho.jcecho_1_17] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
This report will review the role of echocardiography in the diagnosis of cardiac sources of embolism. Embolism of cardiac origin accounts for around 15%–30% of ischemic strokes. The diagnosis of a cardioembolic source of stroke is frequently uncertain and relies on the identification of a potential cardiac source of embolism in the absence of significant autochthonous cerebrovascular occlusive disease. Transthoracic and/or transesophageal echocardiography serves as a cornerstone in the evaluation, diagnosis, and management of these patients. This article reviews potential cardiac sources of embolism and discusses the role of echocardiography in clinical practice. Recommendations for the use of echocardiography in the diagnosis of cardiac sources of embolism are given including major and minor conditions associated with the risk of embolism.
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Affiliation(s)
- Fabrizio Celeste
- Department of Cardiovascular Sciences, Centro Cardiologico Monzino, IRCCS, University of Milan, 20138 Milan, Italy
| | - Manuela Muratori
- Department of Cardiovascular Sciences, Centro Cardiologico Monzino, IRCCS, University of Milan, 20138 Milan, Italy
| | - Massimo Mapelli
- Department of Cardiovascular Sciences, Centro Cardiologico Monzino, IRCCS, University of Milan, 20138 Milan, Italy
| | - Mauro Pepi
- Department of Cardiovascular Sciences, Centro Cardiologico Monzino, IRCCS, University of Milan, 20138 Milan, Italy
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Savino K, Maiello M, Pelliccia F, Ambrosio G, Palmiero P. Patent foramen ovale and cryptogenic stroke: from studies to clinical practice: Position paper of the Italian Chapter, International Society Cardiovascular Ultrasound. Int J Clin Pract 2016; 70:641-8. [PMID: 27384340 DOI: 10.1111/ijcp.12842] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Over the last two decades the interest on patent foramen ovale (PFO) as a cause of cardioembolism in cryptogenic stroke has tremendously increased, thanks to the availability of better techniques to diagnose cardiac right-to-left shunt by ultrasounds and of percutaneous means of PFO treatment with interventional techniques. Many studies have been published that have attempted to define diagnostic methodology, prognosis, and optimal treatment (pharmacological or percutaneous closure) of PFO patients with cryptogenic stroke. Unfortunately, even today, definitive evidence is still lacking, and clinical management is not consistent among cardiologists. AIMS This review aims to evaluate the role of PFO in cryptogenic stroke, the diagnostic accuracy of transcranial Doppler, contrast transthoracic and transesophageal echocardiography in the diagnosis of left-fright shunt and PFO; and discuss the indications to medical treatment and percutaneous closure of PFO. METHODS All studies published in the literature on PFO and cryptogenic stroke are considered and discussed. RESULTS We define an appropriate diagnostic and clinical management of PFO patients with cryptogenic stroke. CONCLUSION After many years of interest on PFO and many concluded studies, there are still no definitive data. However, we are on good track for an appropriate management of PFO patients and cryptogenic stroke.
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Affiliation(s)
- K Savino
- Division of Cardiology - S. Maria della Misericordia Hospital, University of Perugia School of Medicine, Perugia, Italy
| | - M Maiello
- ASL Brindisi, District Cardiology Equipe, Brindisi, Italy
| | - F Pelliccia
- Department Heart and Great Vessels "Attilio Reale", University "La Sapienza" Rome, Rome, Italy
| | - G Ambrosio
- Division of Cardiology - S. Maria della Misericordia Hospital, University of Perugia School of Medicine, Perugia, Italy
| | - P Palmiero
- ASL Brindisi, District Cardiology Equipe, Brindisi, Italy
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D’Andrea A, Conte M, Cavallaro M, Scarafile R, Riegler L, Cocchia R, Pezzullo E, Carbone A, Natale F, Santoro G, Caso P, Russo MG, Bossone E, Calabrò R. Transcranial Doppler ultrasonography: From methodology to major clinical applications. World J Cardiol 2016; 8:383-400. [PMID: 27468332 PMCID: PMC4958690 DOI: 10.4330/wjc.v8.i7.383] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 04/22/2016] [Accepted: 05/27/2016] [Indexed: 02/06/2023] Open
Abstract
Non-invasive Doppler ultrasonographic study of cerebral arteries [transcranial Doppler (TCD)] has been extensively applied on both outpatient and inpatient settings. It is performed placing a low-frequency (≤ 2 MHz) transducer on the scalp of the patient over specific acoustic windows, in order to visualize the intracranial arterial vessels and to evaluate the cerebral blood flow velocity and its alteration in many different conditions. Nowadays the most widespread indication for TCD in outpatient setting is the research of right to left shunting, responsable of so called “paradoxical embolism”, most often due to patency of foramen ovale which is responsable of the majority of cryptogenic strokes occuring in patients younger than 55 years old. TCD also allows to classify the grade of severity of such shunts using the so called “microembolic signal grading score”. In addition TCD has found many useful applications in neurocritical care practice. It is useful on both adults and children for day-to-day bedside assessment of critical conditions including vasospasm in subarachnoidal haemorrhage (caused by aneurysm rupture or traumatic injury), traumatic brain injury, brain stem death. It is used also to evaluate cerebral hemodynamic changes after stroke. It also allows to investigate cerebral pressure autoregulation and for the clinical evaluation of cerebral autoregulatory reserve.
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Abstract
A patent foramen ovale (PFO) is common and found in nearly 25% of healthy individuals. The majority of patients with PFO remain asymptomatic and they are not at increased risk for developing a stroke. The presence of PFO, however, has been found to be higher in patients with cryptogenic stroke, suggesting there may be a subset of patients with PFO who are indeed at risk for stroke. Paradoxical embolization of venous thrombi through the PFO, which then enter the arterial circulation, is hypothesized to account for this relationship. Although aerated-saline transesophageal echocardiography is the gold standard for diagnosis, aerated-saline transthoracic echocardiography and transcranial Doppler are often used as the initial diagnostic tests for detecting PFO. Patients with cryptogenic stroke and PFO are generally treated with antiplatelet therapy in the absence of another condition for which anticoagulation is necessary. Based on the findings of 3 large randomized clinical trials, current consensus guidelines do not recommend percutaneous closure, though this is an area of controversy. The following review discusses the relationship of PFO and cryptogenic stroke, focusing on the epidemiology, pathophysiological mechanisms, diagnostic tools, associated clinical/anatomic factors and treatment. (Circ J 2016; 80: 1665-1673).
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Katsanos AH, Psaltopoulou T, Sergentanis TN, Frogoudaki A, Vrettou AR, Ikonomidis I, Paraskevaidis I, Parissis J, Bogiatzi C, Zompola C, Ellul J, Triantafyllou N, Voumvourakis K, Kyritsis AP, Giannopoulos S, Alexandrov AW, Alexandrov AV, Tsivgoulis G. Transcranial Doppler versus transthoracic echocardiography for the detection of patent foramen ovale in patients with cryptogenic cerebral ischemia: A systematic review and diagnostic test accuracy meta-analysis. Ann Neurol 2016; 79:625-35. [PMID: 26833864 DOI: 10.1002/ana.24609] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 01/29/2016] [Accepted: 01/29/2016] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Patent foramen ovale (PFO) can be detected in up to 43% of patients with cryptogenic cerebral ischemia undergoing investigation with transesophageal echocardiography (TEE). The diagnostic value of transthoracic echocardiography (TTE) in the detection of PFO in patients with cryptogenic ischemic stroke or transient ischemic attack has not been compared with that of transcranial Doppler (TCD) using a comprehensive meta-analytical approach. METHODS We performed a systematic literature review to identify all prospective observational studies of patients with cryptogenic cerebral ischemia that provided both sensitivity and specificity measures of TTE, TCD, or both compared to the gold standard of TEE. RESULTS Our literature search identified 35 eligible studies including 3,067 patients. The pooled sensitivity and specificity for TCD was 96.1% (95% confidence interval [CI] = 93.0-97.8%) and 92.4% (95% CI = 85.5-96.1%), whereas the respective measures for TTE were 45.1% (95% CI = 30.8-60.3%) and 99.6% (95% CI = 96.5-99.9%). TTE was superior in terms of higher positive likelihood ratio values (LR+ = 106.61, 95% CI = 15.09-753.30 for TTE vs LR+ = 12.62, 95% CI = 6.52-24.43 for TCD; p = 0.043), whereas TCD demonstrated lower negative likelihood values (LR- = 0.04, 95% CI = 0.02-0.08) compared to TTE (LR- = 0.55, 95% CI = 0.42-0.72; p < 0.001). Finally, the area under the summary receiver operating curve (AUC) was significantly greater (p < 0.001) in TCD (AUC = 0.98, 95% CI = 0.97-0.99) compared to TTE studies (AUC = 0.86, 95% CI = 0.82-0.89). INTERPRETATION TCD is more sensitive but less specific compared to TTE for the detection of PFO in patients with cryptogenic cerebral ischemia. The overall diagnostic yield of TCD appears to outweigh that of TTE.
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Affiliation(s)
- Aristeidis H Katsanos
- Department of Neurology, University of Ioannina School of Medicine, Ioannina, Greece.,Second Department of Neurology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | - Theodora Psaltopoulou
- Department of Hygiene, Epidemiology, and Medical Statistics, School of Medicine, University of Athens, Athens, Greece
| | - Theodoros N Sergentanis
- Department of Hygiene, Epidemiology, and Medical Statistics, School of Medicine, University of Athens, Athens, Greece
| | - Alexandra Frogoudaki
- Second Department of Cardiology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | - Agathi-Rosa Vrettou
- Second Department of Cardiology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | - Ignatios Ikonomidis
- Second Department of Cardiology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | - Ioannis Paraskevaidis
- Second Department of Cardiology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | - John Parissis
- Second Department of Cardiology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | - Chrysa Bogiatzi
- Stroke Prevention and Atherosclerosis Research Centre, Robarts Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Christina Zompola
- Second Department of Neurology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | - John Ellul
- Department of Neurology, School of Medicine, University of Patras, Patras, Greece
| | - Nikolaos Triantafyllou
- First Department of Neurology, Eginition Hospital, School of Medicine, University of Athens, Athens, Greece
| | - Konstantinos Voumvourakis
- Second Department of Neurology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece
| | | | - Sotirios Giannopoulos
- Department of Neurology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Anne W Alexandrov
- Department of Neurology, University of Tennessee Health Sciences Center, Memphis, TN.,School of Nursing, Australian Catholic University, Sydney, Australia
| | - Andrei V Alexandrov
- Department of Neurology, University of Tennessee Health Sciences Center, Memphis, TN
| | - Georgios Tsivgoulis
- Second Department of Neurology, Attikon University Hospital, School of Medicine, University of Athens, Athens, Greece.,Department of Neurology, University of Tennessee Health Sciences Center, Memphis, TN.,International Clinical Research Center, Department of Neurology, St Anne's University Hospital Brno, Brno, Czech Republic
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Şenadim S, Bozkurt D, Çabalar M, Bajrami A, Yayla V. The Role of Patent Foramen Ovale in Cryptogenic Stroke. Noro Psikiyatr Ars 2016; 53:63-66. [PMID: 28360768 DOI: 10.5152/npa.2015.10034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 12/11/2014] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION Almost one-third of ischemic strokes has an unknown etiology and are classified as cryptogenic stroke. Paradoxical embolism because of a patent foramen ovale (PFO) is detected in 40%-50% of these patients. Recently, PFO has been reported as a risk factor for patients of all age groups. METHODS In this study, 1080 ischemic stroke patients admitted to our clinic (2011-2013) were retrospectively evaluated. Age, sex, risk factors, complete blood count, vasculitis, biochemical and hypercoagulability tests, magnetic resonance imaging, magnetic resonance angiography, transthoracic echocardiography, transeosophageal echocardiography (TEE) findings, and therapeutic approaches were evaluated. RESULTS The age range of the participants (seven male and four female patients) was 20-60 years (mean=43.09±11.13 years). Hemiparesis (n=10), diplopia (n=2), hemianopsia (n=2), and dysarthria (n=2) were the main findings of the neurological examinations. Patient medical history revealed hypertension (n=3), asthma (n=1), deep venous thrombosis (n=1), and smoking (n=4). Diffusion-weighted imaging showed middle cerebral artery (n=8) and posterior cerebral artery (n=3) infarctions. In one case, symptomatic severe carotid stenosis was detected. In eight cases, TEE showed PFO without any other abnormalities, but PFO was associated with atrial septal aneurysm in two cases, and in one case it was associated with ventricular hypokinesia and pulmonary arterial hypertension. Antiplatelet therapy was applied to nine patients and percutaneous PFO closure operation to two patients. In a 2-year follow-up, no recurrent ischemic stroke was recorded. CONCLUSION PFO, especially in terms of the etiology of cryptogenic stroke in young patients, should not be underestimated. We want to emphasize the importance of TEE in identifying potential cardioembolic sources not only in young but also in all ischemic stroke patients with unknown etiology; we also discuss the controversial management options of PFO.
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Affiliation(s)
- Songül Şenadim
- Clinic of Neurology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Dilek Bozkurt
- Clinic of Neurology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Murat Çabalar
- Clinic of Neurology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Arsida Bajrami
- Clinic of Neurology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
| | - Vildan Yayla
- Clinic of Neurology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, İstanbul, Turkey
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Homma S, Messé SR, Rundek T, Sun YP, Franke J, Davidson K, Sievert H, Sacco RL, Di Tullio MR. Patent foramen ovale. Nat Rev Dis Primers 2016; 2:15086. [PMID: 27188965 DOI: 10.1038/nrdp.2015.86] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Patent foramen ovale (PFO) is the most common congenital heart abnormality of fetal origin and is present in approximately ∼25% of the worldwide adult population. PFO is the consequence of failed closure of the foramen ovale, a normal structure that exists in the fetus to direct blood flow directly from the right to the left atrium, bypassing the pulmonary circulation. PFO has historically been associated with an increased risk of stroke, the mechanism of which has been attributed to the paradoxical embolism of venous thrombi that shunt through the PFO directly to the left atrium. However, several studies have failed to show an increased risk of stroke in asymptomatic patients with a PFO, and the risk of stroke recurrence is low in patients who have had a stroke that may be attributed to a PFO. With the advent of transoesophageal and transthoracic echocardiography, as well as transcranial Doppler, a PFO can be routinely detected in clinical practice. Medical treatment with either antiplatelet or anticoagulation therapy is recommended. At the current time, closure of the PFO by percutaneous interventional techniques does not appear to reduce the risk of stroke compared to conventional medical treatment, as shown by three large clinical trials. Considerable controversy remains regarding the optimal treatment strategy for patients with both cryptogenic stroke and PFO. This Primer discusses the epidemiology, mechanisms, pathophysiology, diagnosis, screening, management and effects on quality of life of PFO.
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Affiliation(s)
- Shunichi Homma
- Department of Medicine, Columbia University, College of Physicians and Surgeons, 630 West 168th Street, New York 10032, USA
| | - Steven R Messé
- Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Tatjana Rundek
- Department of Neurology, University of Miami School of Medicine, Miami, Florida, USA
| | - Yee-Ping Sun
- Department of Medicine, Columbia University, College of Physicians and Surgeons, 630 West 168th Street, New York 10032, USA
| | | | - Karina Davidson
- Department of Medicine, Columbia University, College of Physicians and Surgeons, 630 West 168th Street, New York 10032, USA
| | | | - Ralph L Sacco
- Department of Neurology, University of Miami School of Medicine, Miami, Florida, USA
| | - Marco R Di Tullio
- Department of Medicine, Columbia University, College of Physicians and Surgeons, 630 West 168th Street, New York 10032, USA
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Bassotti G. Being constipated: A bad omen for your cardiovascular system? Atherosclerosis 2015; 245:240-1. [PMID: 26684285 DOI: 10.1016/j.atherosclerosis.2015.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 10/01/2015] [Indexed: 02/08/2023]
Affiliation(s)
- Gabrio Bassotti
- Gastroenterology and Hepatology Section, Department of Medicine, University of Perugia Medical School, Perugia, Italy.
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Zhao E, Wei Y, Zhang Y, Zhai N, Zhao P, Liu B. A Comparison of Transthroracic Echocardiograpy and Transcranial Doppler With Contrast Agent for Detection of Patent Foramen Ovale With or Without the Valsalva Maneuver. Medicine (Baltimore) 2015; 94:e1937. [PMID: 26512622 PMCID: PMC4985435 DOI: 10.1097/md.0000000000001937] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Patent foramen ovale (PFO) is a remnant of the fetal circulation exist in 20% of the general population. The purpose of our study was to compare of transthoracic echocardiography (TTE) and contrast-transcranial Doppler sonography (c-TCD) in the diagnosis and quantification of PFO with or without the Valsalva maneuver (VM).We studied 106 patients with a high clinical suspicion for PFO prospectively. Simultaneous c-TCD and TTE were conducted using agitated saline solution to detect right to left shunt (RLS). To classify RLS, mainly PFO, we applied a 4-level visual classification for c-TCD test: no occurrence of micro-embolic signals; grade I, 1 to 10 signals; grade II, 10 to 30 signals but not curtain; and grade III, curtain pattern. We used the number of micro-bubbles appeared in left atrium per frame image to define classification for TTE test: no occurrence of micro-bubbles; grade I, 1 to 10 micro-bubbles; grade II, 10 to 30 micro-bubbles; and grade III, more than 30 micro-bubbles or left atrium nearly filled with micro-bubbles or left atrial opacity. Statistical analyses were performed using SPSS Version 18.0.RLS was detected in 36.0% in c-TCD test and in 46% in TTE test at rest (P = 0.158). And during the VM, RLS was detected in 99.0% in c-TCD test and in 83.0% in TTE test (P < 0.001). Compared with the positive results of c-TCD and TTE at rest, the positive results of them with VM is more higher, respectively (all P < 0.001). The VM obviously increased the number of micro-bubbles shunting.Both c-TCD and TTE should used as initial screening tool for PFO. VM increases the size of shunt. VM resulted in detection of more RLS both in c-TCD and TTE tests.
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Affiliation(s)
- Enfa Zhao
- From the Department of Ultrasound, Second Affiliated Hospital of Medical School, Xi'an Jiao Tong University (EZ, YW, BL); Department of General Surgery, Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University (YZ); and Transcranial Doppler Sonography Laboratory, Second Affiliated Hospital of Medical School, Xi'an Jiao Tong University, Xi'an, Shaanxi, China (NZ, PZ)
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Han K, Xing Y, Yang Y, Chao AC, Sheng WY, Hu HH, Wu J. Body positions in the diagnosis of right-to-left shunt by contrast transcranial Doppler. ULTRASOUND IN MEDICINE & BIOLOGY 2015; 41:2376-2381. [PMID: 26067785 DOI: 10.1016/j.ultrasmedbio.2015.04.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/24/2015] [Accepted: 04/26/2015] [Indexed: 06/04/2023]
Abstract
Contrast transcranial Doppler (c-TCD) is sensitive in detecting right-to-left shunt (RLS). However, the methodology and ideal posture are controversial. Consecutive migraine patients were prospectively examined for RLS using c-TCD. Each patient was examined while at rest and subsequently with the Valsalva maneuver (VM) in three positions: supine, left lateral decubitus and right lateral decubitus. RLS was diagnosed with at least one microbubble detected at any position. RLS was highest in the left lateral decubitus position, both during rest and with VM. The left lateral decubitus position was associated with the highest total number of microbubbles and greater shunt grades. Patients who tested positive in the other two positions had the lowest index position failure rate during rest in the left lateral decubitus position. In some patients in whom RLS is detected at rest, it may not be detected (false negative) under VM. To ensure c-TCD's the sensitivity to RLS, testing in the left lateral decubitus position at rest and under VM is suggested; testing in other positions is necessary to avoid false negatives.
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Affiliation(s)
- Ke Han
- Department of Neurology, First Hospital of Jilin University, Changchun, China
| | - Yingqi Xing
- Department of Neurology, First Hospital of Jilin University, Changchun, China
| | - Yi Yang
- Department of Neurology, First Hospital of Jilin University, Changchun, China
| | - A-Ching Chao
- Department of Neurology, Kaohsiung Medical University Hospital and Department of Neurology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Yung Sheng
- Department of Neurology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Han-Hwa Hu
- Graduate Institute of Clinical Medicine and Department of Neurology, College of Medicine, Taipei Medical University and Hospital, Taipei, Taiwan
| | - Jiang Wu
- Department of Neurology, First Hospital of Jilin University, Changchun, China.
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Kahya Eren N, Bülbül NG, Yakar Tülüce S, Nazlı C, Beckmann Y. To Be or Not to Be Patent: The Relationship Between Migraine and Patent Foramen Ovale. Headache 2015; 55:934-42. [DOI: 10.1111/head.12618] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2015] [Indexed: 01/03/2023]
Affiliation(s)
- Nihan Kahya Eren
- Cardiology Department; Izmir Katip Celebi University Ataturk Education and Research Hospital; Izmir Turkey
| | - Nazlı G. Bülbül
- Neurology Department; Izmir Katip Celebi University Ataturk Education and Research Hospital; Izmir Turkey
| | - Selcen Yakar Tülüce
- Cardiology Department; Izmir Katip Celebi University Ataturk Education and Research Hospital; Izmir Turkey
| | - Cem Nazlı
- Cardiology Department; Izmir Katip Celebi University Ataturk Education and Research Hospital; Izmir Turkey
| | - Yeşim Beckmann
- Neurology Department; Izmir Katip Celebi University Ataturk Education and Research Hospital; Izmir Turkey
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Lin W, Yip JWL, Yeo TC. Refractory hypoxaemia following inferior ST-segment elevation myocardial infarction: case report of an unusual complication and review of treatment strategies. Heart Lung Circ 2015; 24:e157-61. [PMID: 26048320 DOI: 10.1016/j.hlc.2015.04.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 04/13/2015] [Accepted: 04/17/2015] [Indexed: 10/23/2022]
Abstract
Right ventricular (RV) infarction is not an uncommon complication of acute left ventricular infarction. It has been established that RV dysfunction post myocardial infarction (MI) is associated with increased mortality and morbidity. When RV infarction occurs in a patient with previously dormant patent foramen ovale (PFO), an unusual presentation of persistent refractory hypoxaemia ensues. We present a case of new RV infarction in a patient with underlying ischaemic cardiomyopathy, which was complicated by acute right-to-left shunting through the PFO. He was treated with percutaneous coronary intervention (PCI) and subsequent percutaneous PFO closure. We will also review the existing literature with regards to diagnostic and management strategies for patients with this unusual sequelae of MI.
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Affiliation(s)
- Weiqin Lin
- Cardiac Department, National University Heart Centre, Singapore; National University Health System
| | - James Wei Luen Yip
- Cardiac Department, National University Heart Centre, Singapore; National University Health System
| | - Tiong Cheng Yeo
- Cardiac Department, National University Heart Centre, Singapore; National University Health System
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Patent Foramen Ovale in Recreational and Professional Divers: An Important and Largely Unrecognized Problem. Can J Cardiol 2015; 31:1061-6. [PMID: 26143138 DOI: 10.1016/j.cjca.2015.03.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Revised: 03/10/2015] [Accepted: 03/10/2015] [Indexed: 11/20/2022] Open
Abstract
Patent foramen ovale (PFO) is associated with an increased risk of decompression sickness (DCS) in divers that results from a paradoxical embolization of nitrogen bubbles. The number of scuba divers worldwide is estimated in the millions, and the prevalence of PFO is 25%-30% in adults. It is interesting that despite these numbers, many important issues regarding optimal screening, risk stratification, and management strategy still remain to be resolved. Recently published data suggest the possible effectiveness of both PFO closure and conservative diving measures in preventing arterial gas embolization. This review aims to introduce the basic principles of physiology and the pathophysiology of bubble formation and DCS, summarize the current literature on PFO and diving, and review the possibilities of diagnostic workup and management.
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Patent foramen ovale increases the risk of acute ischemic stroke in patients with acute pulmonary embolism leading to right ventricular dysfunction. Thromb Res 2014; 134:1052-6. [DOI: 10.1016/j.thromres.2014.09.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/02/2014] [Accepted: 09/10/2014] [Indexed: 11/22/2022]
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Liou K, Wolfers D, Turner R, Bennett M, Allan R, Jepson N, Cranney G. Patent foramen ovale influences the presentation of decompression illness in SCUBA divers. Heart Lung Circ 2014; 24:26-31. [PMID: 25130890 DOI: 10.1016/j.hlc.2014.07.057] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/02/2014] [Accepted: 07/07/2014] [Indexed: 11/20/2022]
Abstract
BACKGROUND Few have examined the influence of patent foramen ovale (PFO) on the phenotype of decompression illness (DCI) in affected divers. METHODOLOGY A retrospective review of our database was performed for 75 SCUBA divers over a 10-year period. RESULTS Overall 4,945 bubble studies were performed at our institution during the study period. Divers with DCI were more likely to have positive bubble studies than other indications (p<0.001). Major DCI was observed significantly more commonly in divers with PFO than those without (18/1,000 v.s. 3/1,000, p=0.02). Divers affected by DCI were also more likely to require a longer course of hyperbaric oxygen therapy (HBOT) if PFO was present (p=0.038). If the patient experienced one or more major DCI symptoms, the odds ratio of PFO being present on a transoesophageal echocardiogram was 3.2 (p=0.02) compared to those who reported no major DCI symptoms. CONCLUSION PFO is highly prevalent in selected SCUBA divers with DCI, and is associated with a more severe DCI phenotype and longer duration of HBOT. Patients with unexpected DCI with one or more major DCI symptoms should be offered PFO screening if they choose to continue diving, as it may have considerable prognostic and therapeutic implications.
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Affiliation(s)
- Kevin Liou
- Eastern Heart Clinic, Prince of Wales Hospital, Barker Street, Randwick, 2031, Australia.
| | - Darren Wolfers
- Australian Diving and Hyperbaric Medicine Research Group, Prince of Wales Hospital, Barker Street, Randwick, 2031, Australia
| | - Robert Turner
- Australian Diving and Hyperbaric Medicine Research Group, Prince of Wales Hospital, Barker Street, Randwick, 2031, Australia
| | - Michael Bennett
- Australian Diving and Hyperbaric Medicine Research Group, Prince of Wales Hospital, Barker Street, Randwick, 2031, Australia
| | - Roger Allan
- Eastern Heart Clinic, Prince of Wales Hospital, Barker Street, Randwick, 2031, Australia
| | - Nigel Jepson
- Eastern Heart Clinic, Prince of Wales Hospital, Barker Street, Randwick, 2031, Australia
| | - Greg Cranney
- Eastern Heart Clinic, Prince of Wales Hospital, Barker Street, Randwick, 2031, Australia
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Windecker S, Stortecky S, Meier B. Paradoxical Embolism. J Am Coll Cardiol 2014; 64:403-15. [DOI: 10.1016/j.jacc.2014.04.063] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 03/05/2014] [Accepted: 04/03/2014] [Indexed: 12/11/2022]
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Hari P, Pai RG, Varadarajan P. Echocardiographic Evaluation of Patent Foramen Ovale and Atrial Septal Defect. Echocardiography 2014; 32 Suppl 2:S110-24. [DOI: 10.1111/echo.12625] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Pawan Hari
- Division of Cardiology; Loma Linda University Medical Center; Loma Linda California
| | - Ramdas G. Pai
- Division of Cardiology; Loma Linda University Medical Center; Loma Linda California
| | - Padmini Varadarajan
- Division of Cardiology; Loma Linda University Medical Center; Loma Linda California
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Mojadidi MK, Winoker JS, Roberts SC, Msaouel P, Gevorgyan R, Zolty R. Two-dimensional echocardiography using second harmonic imaging for the diagnosis of intracardiac right-to-left shunt: a meta-analysis of prospective studies. Int J Cardiovasc Imaging 2014; 30:911-23. [PMID: 24740212 DOI: 10.1007/s10554-014-0426-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 04/11/2014] [Indexed: 01/17/2023]
Abstract
Right-to-left shunting (RLS), usually through a patent foramen ovale (PFO), has been associated with migraine, cryptogenic stroke and hypoxemia. With emerging observational studies and clinical trials on the subject of PFO, there is a need for accurate diagnosis of PFO in patients being considered for transcatheter closure. While transesophageal echo (TEE) bubble study is the current standard reference for diagnosing PFO, transthoracic echo with second harmonic imaging (TTE-HI) may be a preferable screening test for RLS due to its high accuracy and non-invasiveness. The aim of this meta-analysis was to determine the accuracy of TTE-HI compared to TEE as the reference. A systematic review of Medline, Cochrane and Embase was done for all the prospective studies assessing for intracardiac RLS using TTE-HI compared to TEE as the reference; both TTE-HI and TEE were performed with a contrast agent and a maneuver to provoke RLS in all studies. A total of 15 studies with 1995 patients fulfilled the inclusion criteria. The weighted mean sensitivity and specificity for TTE-HI were 91 and 93 % respectively. Likewise, the positive and negative likelihood ratios were 13.52 and 0.13 respectively. TTE-HI is a reliable, non-invasive test with proficient diagnostic accuracies. The high sensitivity and specificity of TTE-HI make it a useful initial screening test for RLS. If the precise anatomy is required, then TEE can be obtained before scheduling a patient for transcatheter PFO closure.
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Affiliation(s)
- Mohammad Khalid Mojadidi
- Department of Medicine, Montefiore Medical Center and Jacobi Medical Center, Albert Einstein College of Medicine, 1400 Pelham Parkway South, Building 1, Rm 3N1, Bronx, NY, USA,
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Abstract
Cerebral air embolism associated with central venous catheter insertion and removal is a rare but serious complication. There are many hypotheses on how air bubbles might be transported from the venous system to intracranial vessels. The literature has described how intra-cardiac defects transpulmonary passage and even retrograde flow of gas bubbles can explain this phenomenon. We present a case that illustrates the devastating effects of cerebral air embolism after a patient selfextracted his central venous catheter.
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Carminati M, Agnifili M, Arcidiacono C, Brambilla N, Bussadori C, Butera G, Chessa M, Heles M, Micheletti A, Negura DG, Piazza L, Saracino A, Testa L, Tusa M, Bedogni F. Role of imaging in interventions on structural heart disease. Expert Rev Cardiovasc Ther 2014; 11:1659-76. [DOI: 10.1586/14779072.2013.854166] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Falanga G, Carerj S, Oreto G, Khandheria BK, Zito C. How to Understand Patent Foramen Ovale Clinical Significance: Part I. J Cardiovasc Echogr 2014; 24:114-121. [PMID: 28465918 PMCID: PMC5353567 DOI: 10.4103/2211-4122.147202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Patent foramen ovale (PFO) is a remnant of fetal circulation commonly found in healthy population. However, a large number of clinical conditions have been linked to PFO, the most important being ischemic strokes of undetermined cause (cryptogenic strokes) and migraine, especially migraine with aura. Coexistent atrial septal aneurysm, size of PFO, degree of the shunt, shunt at rest, pelvic deep vein thrombosis, and prothrombotic states (G20210A prothrombin gene mutation, Factor V Leiden mutation, MTHFR: C677T, basal homocystine, recent surgery, trauma, or use of contraceptives) could enhance stroke risk in subjects with PFO. Owing to the complexity of this issue, for any individual presenting with a PFO, particularly in the setting of cryptogenic stroke, it is not clear whether the PFO is pathogenically related to the neurological event or an incidental finding. Thus, a heart-brain team, which individually plans the best strategy, in accordance with neuroimaging findings and anatomical characteristics of PFO, is strongly recommended. In the first part of this review, we discuss the embryologic and anatomic features of PFO, the diagnostic techniques for its identification and evaluation, and the relationship between PFO and neurological syndromes. A special attention is made to provide some key points, useful in a daily clinical practice, which summarize how better we understand PFO clinical significance
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Affiliation(s)
- Gabriella Falanga
- Department of Clinical and Experimental Medicine, Cardiology Unit, University of Messina, Azienda Ospedaliera Universitaria "Policlinico G. Martino" and Universita' degli Studi di Messina, Messina, Italy
| | - Scipione Carerj
- Department of Clinical and Experimental Medicine, Cardiology Unit, University of Messina, Azienda Ospedaliera Universitaria "Policlinico G. Martino" and Universita' degli Studi di Messina, Messina, Italy
| | - Giuseppe Oreto
- Department of Clinical and Experimental Medicine, Cardiology Unit, University of Messina, Azienda Ospedaliera Universitaria "Policlinico G. Martino" and Universita' degli Studi di Messina, Messina, Italy
| | - Bijoy K Khandheria
- Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke's Medical Centers, University of Wisconsin School of Medicine and Public Health, Milwaukee, Wisconsin, USA
| | - Concetta Zito
- Department of Clinical and Experimental Medicine, Cardiology Unit, University of Messina, Azienda Ospedaliera Universitaria "Policlinico G. Martino" and Universita' degli Studi di Messina, Messina, Italy
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Importance of Adequately Performed Valsalva Maneuver to Detect Patent Foramen Ovale during Transesophageal Echocardiography. J Am Soc Echocardiogr 2013; 26:1337-43. [DOI: 10.1016/j.echo.2013.07.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Indexed: 02/06/2023]
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50
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Ren P, Li K, Lu X, Xie M. Diagnostic value of transthoracic echocardiography for patent foramen ovale: a meta-analysis. ULTRASOUND IN MEDICINE & BIOLOGY 2013; 39:1743-1750. [PMID: 23820251 DOI: 10.1016/j.ultrasmedbio.2013.03.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Revised: 03/06/2013] [Accepted: 03/08/2013] [Indexed: 06/02/2023]
Abstract
As a non-invasive and convenient modality, transthoracic echocardiography (TTE) has been widely recommended for the diagnosis of patent foramen ovale (PFO). In this study our aim was to systematically review the diagnostic accuracy of TTE in detection of PFO. We conducted comprehensive searches in PubMed, Embase and the Cochrane Library to the end of September 1, 2012. Sixteen studies comprising 1831 patients were included in the meta-analysis. The quality of reported studies was modest. The summary sensitivity and specificity of TTE in diagnosis of PFO were 88% (95% confidence interval [CI], 79-94) and 97% (95% CI, 92-99), respectively. The positive likelihood ratio was 27.1 (95% CI, 11.2-65.1), and the negative likelihood ratio was 0.12 (95% CI, 0.07-0.22). The summary diagnostic odds ratio was 221 (95% CI, 95-518). Subgroup analyses suggested that age and initial disease may affect the accuracy of TTE in detection of PFO. The meta-analysis suggested that TTE is a test with high sensitivity and specificity in detection of PFO, but it may not be appropriate for screening for PFO in all patients, especially patients with a small right-left shunt.
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Affiliation(s)
- Pingping Ren
- Department of Ultrasonography, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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