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Impact of aspirin on takotsubo syndrome: a propensity score‐based analysis of the InterTAK Registry

D'Ascenzo, Fabrizio ; Gili, Sebastiano ; Bertaina, Maurizio ; [et al.]

Wiley ; 2020

In: European Journal of Heart Failure Vol. 22, No. 2 ( 2020-02), p. 330-337

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In: European Journal of Heart Failure, Wiley, Vol. 22, No. 2 ( 2020-02), p. 330-337

Abstract: The aim of the present study was to investigate the impact of aspirin on prognosis in takotsubo syndrome (TTS). Methods and results Patients from the International Takotsubo (InterTAK) Registry were categorized into two groups based on aspirin prescription at discharge. A comparison of clinical outcomes between groups was performed using an adjusted analysis with propensity score (PS) stratification; results from the unadjusted analysis were also reported to note the effect of the PS adjustment. Major adverse cardiac and cerebrovascular events (MACCE: a composite of death, myocardial infarction, TTS recurrence, stroke or transient ischaemic attack) were assessed at 30‐day and 5‐year follow‐up. A total of 1533 TTS patients with known status regarding aspirin prescription at discharge were included. According to the adjusted analysis based on PS stratification, aspirin was not associated with a lower hazard of MACCE at 30‐day [hazard ratio (HR) 1.24, 95% confidence interval (CI) 0.50–3.04, P = 0.64] or 5‐year follow‐up (HR 1.11, 95% CI 0.78–1.58, P = 0.58). These results were confirmed by sensitivity analyses performed with alternative PS‐based methods, i.e. covariate adjustment and inverse probability of treatment weighting. Conclusion In the present study, no association was found between aspirin use in TTS patients and a reduced risk of MACCE at 30‐day and 5‐year follow‐up. These findings should be confirmed in adequately powered randomized controlled trials. ClinicalTrials.gov Identifier: NCT01947621.

Type of Medium: Online Resource

ISSN: 1388-9842 , 1879-0844

URL: Issue

URL: Article

DOI: 10.1002/ejhf.v22.2

DOI: 10.1002/ejhf.1698

Language: English

Publisher: Wiley

Publication Date: 2020

detail.hit.zdb_id: 1500332-2

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2

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Ethnic comparison in takotsubo syndrome: novel insights from the International Takotsubo Registry

Imori, Yoichi ; Kato, Ken ; Cammann, Victoria L. ; [et al.]

Springer Science and Business Media LLC ; 2022

In: Clinical Research in Cardiology Vol. 111, No. 2 ( 2022-02), p. 186-196

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In: Clinical Research in Cardiology, Springer Science and Business Media LLC, Vol. 111, No. 2 ( 2022-02), p. 186-196

Abstract: Ethnic disparities have been reported in cardiovascular disease. However, ethnic disparities in takotsubo syndrome (TTS) remain elusive. This study assessed differences in clinical characteristics between Japanese and European TTS patients and determined the impact of ethnicity on in-hospital outcomes. Methods TTS patients in Japan were enrolled from 10 hospitals and TTS patients in Europe were enrolled from 32 hospitals participating in the International Takotsubo Registry. Clinical characteristics and in-hospital outcomes were compared between Japanese and European patients. Results A total of 503 Japanese and 1670 European patients were included. Japanese patients were older (72.6 ± 11.4 years vs. 68.0 ± 12.0 years; p 〈 0.001) and more likely to be male (18.5 vs. 8.4%; p 〈 0.001) than European TTS patients. Physical triggering factors were more common (45.5 vs. 32.0%; p 〈 0.001), and emotional triggers less common (17.5 vs. 31.5%; p 〈 0.001), in Japanese patients than in European patients. Japanese patients were more likely to experience cardiogenic shock during the acute phase (15.5 vs. 9.0%; p 〈 0.001) and had a higher in-hospital mortality (8.2 vs. 3.2%; p 〈 0.001). However, ethnicity itself did not appear to have an impact on in-hospital mortality. Machine learning approach revealed that the presence of physical stressors was the most important prognostic factor in both Japanese and European TTS patients. Conclusion Differences in clinical characteristics and in-hospital outcomes between Japanese and European TTS patients exist. Ethnicity does not impact the outcome in TTS patients. The worse in-hospital outcome in Japanese patients, is mainly driven by the higher prevalence of physical triggers. Trial Registration URL: https://www.clinicaltrials.gov ; Unique Identifier: NCT01947621.

Type of Medium: Online Resource

ISSN: 1861-0684 , 1861-0692

URL: Article

DOI: 10.1007/s00392-021-01857-4

RVK:

XA 37040

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2022

detail.hit.zdb_id: 2218331-0

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Machine learning‐based prediction of in‐hospital death for patients with takotsubo syndrome: The InterTAK‐ML model

De Filippo, Ovidio ; Cammann, Victoria L. ; Pancotti, Corrado ; [et al.]

Wiley ; 2023

In: European Journal of Heart Failure

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In: European Journal of Heart Failure, Wiley

Abstract: Takotsubo syndrome (TTS) is associated with a substantial rate of adverse events. We sought to design a machine learning (ML)‐based model to predict the risk of in‐hospital death and to perform a clustering of TTS patients to identify different risk profiles. Methods and results A ridge logistic regression‐based ML model for predicting in‐hospital death was developed on 3482 TTS patients from the International Takotsubo (InterTAK) Registry, randomly split in a train and an internal validation cohort (75% and 25% of the sample size, respectively) and evaluated in an external validation cohort (1037 patients). Thirty‐one clinically relevant variables were included in the prediction model. Model performance represented the primary endpoint and was assessed according to area under the curve (AUC), sensitivity and specificity. As secondary endpoint, a K‐medoids clustering algorithm was designed to stratify patients into phenotypic groups based on the 10 most relevant features emerging from the main model. The overall incidence of in‐hospital death was 5.2%. The InterTAK‐ML model showed an AUC of 0.89 (0.85–0.92), a sensitivity of 0.85 (0.78–0.95) and a specificity of 0.76 (0.74–0.79) in the internal validation cohort and an AUC of 0.82 (0.73–0.91), a sensitivity of 0.74 (0.61–0.87) and a specificity of 0.79 (0.77–0.81) in the external cohort for in‐hospital death prediction. By exploiting the 10 variables showing the highest feature importance, TTS patients were clustered into six groups associated with different risks of in‐hospital death (28.8% vs. 15.5% vs. 5.4% vs. 1.0.8% vs. 0.5%) which were consistent also in the external cohort. Conclusion A ML‐based approach for the identification of TTS patients at risk of adverse short‐term prognosis is feasible and effective. The InterTAK‐ML model showed unprecedented discriminative capability for the prediction of in‐hospital death.

Type of Medium: Online Resource

ISSN: 1388-9842 , 1879-0844

URL: Article

DOI: 10.1002/ejhf.2983

Language: English

Publisher: Wiley

Publication Date: 2023

detail.hit.zdb_id: 1500332-2

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Impact of Atrial Fibrillation on Outcome in Takotsubo Syndrome: Data From the International Takotsubo Registry

El‐Battrawy, Ibrahim ; Cammann, Victoria L. ; Kato, Ken ; [et al.]

Ovid Technologies (Wolters Kluwer Health) ; 2021

In: Journal of the American Heart Association Vol. 10, No. 15 ( 2021-08-03)

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In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 10, No. 15 ( 2021-08-03)

Abstract: Atrial fibrillation (AF) is a major risk factor for mortality. The prevalence, clinical correlates, and prognostic impact of AF in Takotsubo syndrome (TTS) have not yet been investigated in a large patient cohort. This study aimed to investigate the prevalence, clinical correlates, and prognostic impact of AF in patients with TTS. Methods and Results Patients with TTS were enrolled from the International Takotsubo Registry, which is a multinational network with 26 participating centers in Europe and the United States. Patients were dichotomized according to the presence or absence of AF at the time of admission. Of 1584 patients with TTS, 112 (7.1%) had AF. The mean age was higher ( P 〈 0.001), and there were fewer women ( P =0.046) in the AF than in the non‐AF group. Left ventricular ejection fraction was significantly lower ( P =0.001), and cardiogenic shock was more often observed ( P 〈 0.001) in the AF group. Both in‐hospital ( P 〈 0.001) and long‐term mortality ( P 〈 0.001) were higher in the AF group. Multivariable Cox regression analysis revealed that AF was independently associated with higher long‐term mortality (hazard ratio, 2.31; 95% CI, 1.50–3.55; P 〈 0.001). Among patients with AF on admission, 42% had no known history of AF before the acute TTS event, and such patients had comparable in‐hospital and long‐term outcomes compared with those with a history of AF. Conclusions In patients presenting with TTS, AF on admission is significantly associated with increased in‐hospital and long‐term mortality rates. Whether antiarrhythmics and/or cardioversion are beneficial in TTS with AF should thus be tested in a future trial. Registration URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01947621.

Type of Medium: Online Resource

ISSN: 2047-9980

URL: Article

DOI: 10.1161/JAHA.119.014059

Language: English

Publisher: Ovid Technologies (Wolters Kluwer Health)

Publication Date: 2021

detail.hit.zdb_id: 2653953-6

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Intraventricular Thrombus Formation and Embolism in Takotsubo Syndrome : Insights From the International Takotsubo Registry

Ding, Katharina J. ; Cammann, Victoria L. ; Szawan, Konrad A. ; [et al.]

Ovid Technologies (Wolters Kluwer Health) ; 2020

In: Arteriosclerosis, Thrombosis, and Vascular Biology Vol. 40, No. 1 ( 2020-01), p. 279-287

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In: Arteriosclerosis, Thrombosis, and Vascular Biology, Ovid Technologies (Wolters Kluwer Health), Vol. 40, No. 1 ( 2020-01), p. 279-287

Abstract: Takotsubo syndrome (TTS) is characterized by acute left ventricular dysfunction, which can contribute to intraventricular thrombus and embolism. Still, prevalence and clinical impact of thrombus formation and embolic events on outcome of TTS patients remain unclear. This study aimed to investigate clinical features and outcomes of patients with and without intraventricular thrombus or embolism. Additionally, factors associated with thrombus formation or embolism, as well as predictors for mortality, were identified. Approach and Results: TTS patients enrolled in the International Takotsubo Registry at 28 centers in Australia, Europe, and the United States were dichotomized according to the occurrence/absence of intraventricular thrombus or embolism. Patients with intraventricular thrombus or embolism were defined as the ThrombEmb group. Of 1676 TTS patients, 56 (3.3%) patients developed intraventricular thrombus and/or embolism following TTS diagnosis (median time interval, 2.0 days [range, 0–38 days]). Patients in the ThrombEmb group had a different clinical profile including lower left ventricular ejection fraction, higher prevalence of the apical type, elevated levels of troponin and inflammatory markers, and higher prevalence of vascular disease. In a Firth bias-reduced penalized-likelihood logistic regression model apical type, left ventricular ejection fraction ≤30%, previous vascular disease, and a white blood cell count on admission 〉 10×10 3 cells/μL emerged as independent predictors for thrombus formation or embolism. Conclusions: Intraventricular thrombus or embolism occur in 3.3% of patients in the acute phase of TTS. A simple risk score including clinical parameters associated with intraventricular thrombus formation or embolism identifies patients at increased risk. Clinical Trial Registration: URL: http://www.clinicaltrials.gov . Unique identifier: NCT01947621.

Type of Medium: Online Resource

ISSN: 1079-5642 , 1524-4636

URL: Article

DOI: 10.1161/ATVBAHA.119.313491

Language: English

Publisher: Ovid Technologies (Wolters Kluwer Health)

Publication Date: 2020

detail.hit.zdb_id: 1494427-3

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Prognostic impact of acute pulmonary triggers in patients with takotsubo syndrome: new insights from the International Takotsubo Registry

Kato, Ken ; Cammann, Victoria L. ; Napp, L. Christian ; [et al.]

Wiley ; 2021

In: ESC Heart Failure Vol. 8, No. 3 ( 2021-06), p. 1924-1932

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In: ESC Heart Failure, Wiley, Vol. 8, No. 3 ( 2021-06), p. 1924-1932

Abstract: Acute pulmonary disorders are known physical triggers of takotsubo syndrome (TTS). This study aimed to investigate prevalence of acute pulmonary triggers in patients with TTS and their impact on outcomes. Methods and results Patients with TTS were enrolled from the International Takotsubo Registry and screened for triggering factors and comorbidities. Patients were categorized into three groups (acute pulmonary trigger, chronic lung disease, and no lung disease) to compare clinical characteristics and outcomes. Of the 1670 included patients with TTS, 123 (7%) were identified with an acute pulmonary trigger, and 194 (12%) had a known history of chronic lung disease. The incidence of cardiogenic shock was highest in patients with an acute pulmonary trigger compared with those with chronic lung disease or without lung disease (17% vs. 10% vs. 9%, P = 0.017). In‐hospital mortality was also higher in patients with an acute pulmonary trigger than in the other two groups, although not significantly (5.7% vs. 1.5% vs. 4.2%, P = 0.13). Survival analysis demonstrated that patients with an acute pulmonary trigger had the worst long‐term outcome ( P = 0.002). The presence of an acute pulmonary trigger was independently associated with worse long‐term mortality (hazard ratio 2.12, 95% confidence interval 1.33–3.38; P = 0.002). Conclusions The present study demonstrates that TTS is related to acute pulmonary triggers in 7% of all TTS patients, which accounts for 21% of patients with physical triggers. The presence of acute pulmonary trigger is associated with a severe in‐hospital course and a worse long‐term outcome.

Type of Medium: Online Resource

ISSN: 2055-5822 , 2055-5822

URL: Issue

URL: Article

DOI: 10.1002/ehf2.v8.3

DOI: 10.1002/ehf2.13165

Language: English

Publisher: Wiley

Publication Date: 2021

detail.hit.zdb_id: 2814355-3

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Outcomes Associated With Cardiogenic Shock in Takotsubo Syndrome : Results From the International Takotsubo Registry

Di Vece, Davide ; Citro, Rodolfo ; Cammann, Victoria L. ; [et al.]

Ovid Technologies (Wolters Kluwer Health) ; 2019

In: Circulation Vol. 139, No. 3 ( 2019-01-15), p. 413-415

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In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 139, No. 3 ( 2019-01-15), p. 413-415

Type of Medium: Online Resource

ISSN: 0009-7322 , 1524-4539

URL: Article

DOI: 10.1161/CIRCULATIONAHA.118.036164

Language: English

Publisher: Ovid Technologies (Wolters Kluwer Health)

Publication Date: 2019

detail.hit.zdb_id: 1466401-X

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Clinical Predictors and Prognostic Impact of Recovery of Wall Motion Abnormalities in Takotsubo Syndrome: Results From the International Takotsubo Registry

Jurisic, Stjepan ; Gili, Sebastiano ; Cammann, Victoria L. ; [et al.]

Ovid Technologies (Wolters Kluwer Health) ; 2019

In: Journal of the American Heart Association Vol. 8, No. 21 ( 2019-11-05)

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In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 8, No. 21 ( 2019-11-05)

Abstract: Left ventricular ( LV ) recovery in takotsubo syndrome ( TTS ) occurs over a wide‐ranging interval, varying from hours to weeks. We sought to investigate the clinical predictors and prognostic impact of recovery time for TTS patients. Methods and Results TTS patients from the International Takotsubo Registry were included in this study. Cut‐off for early LV recovery was determined to be 10 days after the acute event. Multivariable logistic regression was used to assess factors associated with the absence of early recovery. In‐hospital outcomes and 1‐year mortality were compared for patients with versus without early recovery. We analyzed 406 patients with comprehensive and serial imaging data regarding time to recovery. Of these, 191 (47.0%) had early LV recovery and 215 (53.0%) demonstrated late LV improvement. Patients without early recovery were more often male (12.6% versus 5.2%; P =0.011) and presented more frequently with typical TTS (76.3% versus 67.0%, P =0.040). Cardiac and inflammatory markers were higher in patients without early recovery than in those with early recovery. Patients without early recovery showed unfavorable 1‐year outcome compared with patients with early recovery ( P =0.003). On multiple logistic regression, male sex, LV ejection fraction 〈 45%, and acute neurologic disorders were associated with the absence of early recovery. Conclusions TTS patients without early LV recovery have different clinical characteristics and less favorable 1‐year outcome compared with patients with early recovery. The factors associated with the absence of early recovery included male sex, reduced LV ejection fraction, and acute neurologic events. Clinical Trial Registration URL : http://www.clinicaltrials.gov . Unique identifier: NCT 01947621.

Type of Medium: Online Resource

ISSN: 2047-9980

URL: Article

DOI: 10.1161/JAHA.118.011194

Language: English

Publisher: Ovid Technologies (Wolters Kluwer Health)

Publication Date: 2019

detail.hit.zdb_id: 2653953-6

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9

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Cammann, Victoria L. ; Szawan, Konrad A. ; Stähli, Barbara E. ; [et al.]

Elsevier BV ; 2020

In: Journal of the American College of Cardiology Vol. 75, No. 16 ( 2020-04), p. 1869-1877

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In: Journal of the American College of Cardiology, Elsevier BV, Vol. 75, No. 16 ( 2020-04), p. 1869-1877

Type of Medium: Online Resource

ISSN: 0735-1097

URL: Article

DOI: 10.1016/j.jacc.2020.02.057

RVK:

XA 17760

Language: English

Publisher: Elsevier BV

Publication Date: 2020

detail.hit.zdb_id: 1468327-1

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10

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Coexistence and outcome of coronary artery disease in Takotsubo syndrome

Napp, L Christian ; Cammann, Victoria L ; Jaguszewski, Milosz ; [et al.]

Oxford University Press (OUP) ; 2020

In: European Heart Journal Vol. 41, No. 34 ( 2020-09-07), p. 3255-3268

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In: European Heart Journal, Oxford University Press (OUP), Vol. 41, No. 34 ( 2020-09-07), p. 3255-3268

Abstract: Takotsubo syndrome (TTS) is an acute heart failure syndrome, which shares many features with acute coronary syndrome (ACS). Although TTS was initially described with angiographically normal coronary arteries, smaller studies recently indicated a potential coexistence of coronary artery disease (CAD) in TTS patients. This study aimed to determine the coexistence, features, and prognostic role of CAD in a large cohort of patients with TTS. Methods and results Coronary anatomy and CAD were studied in patients diagnosed with TTS. Inclusion criteria were compliance with the International Takotsubo Diagnostic Criteria for TTS, and availability of original coronary angiographies with ventriculography performed during the acute phase. Exclusion criteria were missing views, poor quality of angiography loops, and angiography without ventriculography. A total of 1016 TTS patients were studied. Of those, 23.0% had obstructive CAD, 41.2% had non-obstructive CAD, and 35.7% had angiographically normal coronary arteries. A total of 47 patients (4.6%) underwent percutaneous coronary intervention, and 3 patients had acute and 8 had chronic coronary artery occlusion concomitant with TTS, respectively. The presence of CAD was associated with increased incidence of shock, ventilation, and death from any cause. After adjusting for confounders, the presence of obstructive CAD was associated with mortality at 30 days. Takotsubo syndrome patients with obstructive CAD were at comparable risk for shock and death and nearly at twice the risk for ventilation compared to an age- and sex-matched ACS cohort. Conclusions Coronary artery disease frequently coexists in TTS patients, presents with the whole spectrum of coronary pathology including acute coronary occlusion, and is associated with adverse outcome. Trial registration ClinicalTrials.gov number: NCT01947621.

Type of Medium: Online Resource

ISSN: 0195-668X , 1522-9645

URL: Article

DOI: 10.1093/eurheartj/ehaa210

Language: English

Publisher: Oxford University Press (OUP)

Publication Date: 2020

detail.hit.zdb_id: 2001908-7

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