Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIA
Background We investigated the impact of left atrial appendage (LAA) function by LAA strain, LAA morphology and subclinical atrial fibrillation (AF) on LAA thrombus presence and thromboembolic risk conditions (TRC) in patients with cryptogenic stroke and transient ischaemic attack (TIA).Methods 185...
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BMJ Publishing Group
2025-05-01
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| Series: | Open Heart |
| Online Access: | https://openheart.bmj.com/content/12/1/e003287.full |
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| author | Kjetil Steine Ole Morten Rønning Jørg Saberniak Loreta Skrebelyte-Strøm Eivind Bjørkan Orstad Janne Elin Mykland Hilde |
| author_facet | Kjetil Steine Ole Morten Rønning Jørg Saberniak Loreta Skrebelyte-Strøm Eivind Bjørkan Orstad Janne Elin Mykland Hilde |
| author_sort | Kjetil Steine |
| collection | DOAJ |
| description | Background We investigated the impact of left atrial appendage (LAA) function by LAA strain, LAA morphology and subclinical atrial fibrillation (AF) on LAA thrombus presence and thromboembolic risk conditions (TRC) in patients with cryptogenic stroke and transient ischaemic attack (TIA).Methods 185 patients (mean age 68±13 years, 33% female) were included in this prospective cohort study and underwent clinical evaluation, comprehensive transthoracic and transoesophageal echocardiography shortly after index event. LAA function and morphology were evaluated by monoplane/multiplane/speckle tracking strain and three-dimensional echocardiography. Combination of LAA thrombus and/or spontaneous echo contrast (SEC) was defined as TRC. An insertable cardiac monitor was implanted in all patients to detect subclinical AF.Results LAA function by novel LAA strain and LAA chicken wing were independent predictors of LAA thrombus (OR 0.9 (95% CI 0.8 to 0.95), p<0.01 and OR 2.5 (95% CI 1.1 to 5.8), p=0.04, respectively). LAA chicken wing and multilobate LAA were independent predictors of TRC (OR 2.3 (95% CI 1.2 to 4.5), p=0.01 and OR 2.2 (95% CI 1.2 to 4.2), p=0.02, respectively).LAA morphology was characterised as chicken wing in 79 (43%), windsock in 64 (34%), cactus in 35 (19%), cauliflower in 7 (4%) and multilobate LAA in 115 (62%) patients. LAA thrombus was found in 29 (16%), TRC in 123 (67%) and subclinical AF in 60 (32%) patients. Duration of subclinical AF >6 hours was associated with SEC and recurrent stroke and TIA.Conclusion LAA function by novel LAA strain and LAA structure are independently associated with LAA thrombus and TRC in patients with cryptogenic stroke and TIA.Trial registration number NCT02725944. |
| format | Article |
| id | doaj-art-0980ea81517f495d8dd8f8fcecbeb746 |
| institution | DOAJ |
| issn | 2053-3624 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | Open Heart |
| spelling | doaj-art-0980ea81517f495d8dd8f8fcecbeb7462025-08-20T03:22:18ZengBMJ Publishing GroupOpen Heart2053-36242025-05-0112110.1136/openhrt-2025-003287Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIAKjetil Steine0Ole Morten Rønning1Jørg Saberniak2Loreta Skrebelyte-Strøm3Eivind Bjørkan Orstad4Janne Elin Mykland Hilde5Cardiology, Akershus University Hospital, Lørenskog, NorwayInstitute of Clinical Medicine, University of Oslo, Oslo, NorwayCardiology, Akershus University Hospital, Lørenskog, NorwayNeurolgy and Cardiology, Akershus University Hospital, Lørenskog, NorwayCardiology, Akershus University Hospital, Lørenskog, NorwayCardiology, Akershus University Hospital, Lørenskog, NorwayBackground We investigated the impact of left atrial appendage (LAA) function by LAA strain, LAA morphology and subclinical atrial fibrillation (AF) on LAA thrombus presence and thromboembolic risk conditions (TRC) in patients with cryptogenic stroke and transient ischaemic attack (TIA).Methods 185 patients (mean age 68±13 years, 33% female) were included in this prospective cohort study and underwent clinical evaluation, comprehensive transthoracic and transoesophageal echocardiography shortly after index event. LAA function and morphology were evaluated by monoplane/multiplane/speckle tracking strain and three-dimensional echocardiography. Combination of LAA thrombus and/or spontaneous echo contrast (SEC) was defined as TRC. An insertable cardiac monitor was implanted in all patients to detect subclinical AF.Results LAA function by novel LAA strain and LAA chicken wing were independent predictors of LAA thrombus (OR 0.9 (95% CI 0.8 to 0.95), p<0.01 and OR 2.5 (95% CI 1.1 to 5.8), p=0.04, respectively). LAA chicken wing and multilobate LAA were independent predictors of TRC (OR 2.3 (95% CI 1.2 to 4.5), p=0.01 and OR 2.2 (95% CI 1.2 to 4.2), p=0.02, respectively).LAA morphology was characterised as chicken wing in 79 (43%), windsock in 64 (34%), cactus in 35 (19%), cauliflower in 7 (4%) and multilobate LAA in 115 (62%) patients. LAA thrombus was found in 29 (16%), TRC in 123 (67%) and subclinical AF in 60 (32%) patients. Duration of subclinical AF >6 hours was associated with SEC and recurrent stroke and TIA.Conclusion LAA function by novel LAA strain and LAA structure are independently associated with LAA thrombus and TRC in patients with cryptogenic stroke and TIA.Trial registration number NCT02725944.https://openheart.bmj.com/content/12/1/e003287.full |
| spellingShingle | Kjetil Steine Ole Morten Rønning Jørg Saberniak Loreta Skrebelyte-Strøm Eivind Bjørkan Orstad Janne Elin Mykland Hilde Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIA Open Heart |
| title | Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIA |
| title_full | Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIA |
| title_fullStr | Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIA |
| title_full_unstemmed | Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIA |
| title_short | Left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and TIA |
| title_sort | left atrial appendage function by strain and structure is associated with thromboembolic risk in patients with cryptogenic stroke and tia |
| url | https://openheart.bmj.com/content/12/1/e003287.full |
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