Rationale and design of the rigorous atrial analysis in advanced interatrial block (ARABIA) prospective study

Advanced interatrial block (IAB) is present in 10% of subjects ≥75 years and is associated with the risk of clinical events. Methods and results: Prospective multicenter study that will include subjects ≥75 years without exclusion criteria (indication for anticoagulation, cardiac devices, severe valve disease, systolic dysfunction, moderate or severe cognitive impairment, poor echocardiographic window, non-sinus rhythm or partial IAB, stroke, and life expectancy <2 years). A total of 356 subjects, 178 patients with advanced IAB (exposed) and 178 matched individuals with normal P-wave (non-exposed) will be included. Electrocardiogram and advanced transthoracic echocardiography will be performed. Two substudies will include magnetic resonance imaging: cardiac (86 subjects, 43 exposed, and 43 non-exposed) and brain (86 subjects, 43 exposed, and 43 non-exposed). The follow-up will be 2 years. Our main objective is to determine the association of advanced IAB, P-wave duration, and atrial imaging parameters (I] atrial global longitudinal strain, II] maximal left atrial volume index, III] left atrial ejection fraction, IV] left atrial fibrosis - % total left atrial area V] inter- and intra-atrial asynchrony/dyssynchrony) with clinical events (atrial fibrillation, stroke, cognitive impairment, and mortality). The secondary objective is to assess the association of the P-wave duration with atrial imaging parameters and of both with cerebral microemboli in magnetic resonance imaging. Conclusion: Our study will provide data regarding the association of advanced IAB, P-wave duration, and atrial imaging parameters with clinical events. We will also assess the association P-wave duration-atrial imaging parameters-cerebral microemboli.Sin financiación1.380 JCR (2021) Q4, 135/143 Cardiac & Cardiovascular Systems0.419 SJR (2021) Q3, 203/356 Cardiology and Cardiovascular MedicineNo data IDR 2020UE

VA-ECMO support in patients with refractory cardiogenic shock. A 6-year multicenter registry

Introducción y objetivos Los datos respecto a la utilización del oxigenador extracorpóreo de membrana venoarterial (ECMO-VA) en adultos con shock cardiogénico (SC) son escasos. El objetivo del presente estudio fue describir los datos de un registro multicéntrico español, y analizar qué factores tuvieron un impacto en la mortalidad intrahospitalaria. Métodos Registro retrospectivo multicéntrico español de pacientes en situación de SC profundo que recibieron soporte circulatorio con ECMO-VA. Resultados Desde enero de 2012 hasta octubre de 2018, se asistieron 233 pacientes con ECMO-VA. La edad media fue 56,3 ± 12,18 años y 50 eran mujeres (21,5%). Recibieron el alta hospitalaria 109 pacientes (46,8%). Las complicaciones más frecuentes observadas fueron: insuficiencia renal aguda en 131 (59,0%), hemorragia en 70 (31,7%), hipoxemia en 86 (36,9%) e infección en 99 (43,4%). Los predictores independientes de mortalidad intrahospitalaria fueron lactato al implante (OR = 1,05; IC95%, 1,05-1,19), edad (OR = 2,19; IC95%, 1,05-4,58) y canulación intraparada cardiaca (OR = 1,04; IC95%, 1,01-1,06). Un total de 45 pacientes tenían edad > 60 años y lactato al implante > 8 mmol/l, su mortalidad intrahospitalaria fue de 77,8% y llegó al 91,7% en 12 de ellos en los que la canulación fue intraparada cardiaca. Conclusiones La terapia con ECMO-VA es factible en pacientes con SC profundo. La selección adecuada parece fundamental para evitar la futilidad del implante en pacientes con escasas posibilidades de éxito.Introduction and objectives The data regarding the use of venoarterial extracorporeal membrane oxygenation (VA-ECMO) in adults in with cardiogenic shock (CS) are scarce. The aim of this study was to describe the data of a Spanish multicenter registry, and to analyze which factors had an impact on in-hospital mortality. Methods Retrospective Spanish multicenter registry of patients with deep CS treated with VA-ECMO circulatory support. Results From January 2012 to October 2018, 233 patients were treated with VA-ECMO. Mean age was 56.3 ± 12.18 years and 50 were female (21.5%). A total of 109 patients were successfully discharged (46.8%). The most frequent complications were acute kidney injury in 131 (59.0%), hypoxemia in 86 (36.9%) major bleeding in 70 (31.7%), and infection in 99 (43.4%). The independent in-hospital mortality risk factors were lactate before implant (OR, 1.05; 95%CI, 1.05-1.19), age (OR, 2.19; 95%CI, 1.05-4.58), and cannulation during cardiac arrest (OR, 1.04; 95%CI, 1.01-1.06). A total of 45 patients > 60 years with lactate before implant > 8 mmol/l had an in-hospital mortality rate of 77.8%, in-hospital mortality and reached 91.7% in 12 of them with cannulation during cardiac arrest. Conclusions VA-ECMO therapy for patients with deep cardiogenic shock is feasibly. Appropriate selection seems critical in order to avoid the futility of using ECMO in those patients with low survival chances.Sin financiaciónNo data JCR 20200.114 SJR (2020) Q4, 316/349 Cardiology and Cardiovascular MedicineNo data IDR 2020UE

Development and Validation of a Prediction Model and Score for Transthyretin Cardiac Amyloidosis Diagnosis: T-Amylo.

BACKGROUND Although transthyretin cardiac amyloidosis (ATTR-CA) is often underdiagnosed, clinical suspicion is essential for early diagnosis. OBJECTIVES The aim of this study was to develop and validate a feasible prediction model and score to facilitate the diagnosis of ATTR-CA. METHODS This retrospective multicenter study enrolled consecutive patients who underwent 99mTc-DPD scintigraphy for suspected ATTR-CA. ATTR-CA was diagnosed if Grade 2 or 3 cardiac uptake was evidenced on 99mTc-DPD scintigraphy in the absence of a detectable monoclonal component or by demonstration of amyloid by biopsy. A prediction model for ATTR-CA diagnosis was developed in a derivation sample of 227 patients from 2 centers using multivariable logistic regression with clinical, electrocardiography, analytical, and transthoracic echocardiography variables. A simplified score was also created. Both of them were validated in an external cohort (n = 895) from 11 centers. RESULTS The obtained prediction model combined age, gender, carpal tunnel syndrome, interventricular septum in diastole thickness, and low QRS interval voltages, with an area under the curve (AUC) of 0.92. The score had an AUC of 0.86. Both the T-Amylo prediction model and the score showed a good performance in the validation sample (ie, AUC: 0.84 and 0.82, respectively). They were tested in 3 clinical scenarios of the validation cohort: 1) hypertensive cardiomyopathy (n = 327); 2) severe aortic stenosis (n = 105); and 3) heart failure with preserved ejection fraction (n = 604), all with good diagnostic accuracy. CONCLUSIONS The T-Amylo is a simple prediction model that improves the prediction of ATTR-CA diagnosis in patients with suspected ATTR-CA.Part of this project was funded by Pfizer through an independent general research grant (number 64764667). This study has been partially funded by Instituto de Salud Carlos III through the project "PI20/01379” (co-funded by European Regional Development Fund/ European Social Fund "A way to make Europe"/"Investing in your future"). The CNIC is supported by the ISCIII, MCIN, the Pro-CNIC Foundation, and the Severo Ochoa grant (CEX2020-001041-S). Dr Basurte Elorz has received a consultant fee from Pfizer. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.S