Dapagliflozin in Heart Failure with Mildly Reduced or Preserved Ejection Fraction.

BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors reduce the risk of hospitalization for heart failure and cardiovascular death among patients with chronic heart failure and a left ventricular ejection fraction of 40% or less. Whether SGLT2 inhibitors are effective in patients with a higher left ventricular ejection fraction remains less certain. METHODS: We randomly assigned 6263 patients with heart failure and a left ventricular ejection fraction of more than 40% to receive dapagliflozin (at a dose of 10 mg once daily) or matching placebo, in addition to usual therapy. The primary outcome was a composite of worsening heart failure (which was defined as either an unplanned hospitalization for heart failure or an urgent visit for heart failure) or cardiovascular death, as assessed in a time-to-event analysis. RESULTS: Over a median of 2.3 years, the primary outcome occurred in 512 of 3131 patients (16.4%) in the dapagliflozin group and in 610 of 3132 patients (19.5%) in the placebo group (hazard ratio, 0.82; 95% confidence interval [CI], 0.73 to 0.92; P<0.001). Worsening heart failure occurred in 368 patients (11.8%) in the dapagliflozin group and in 455 patients (14.5%) in the placebo group (hazard ratio, 0.79; 95% CI, 0.69 to 0.91); cardiovascular death occurred in 231 patients (7.4%) and 261 patients (8.3%), respectively (hazard ratio, 0.88; 95% CI, 0.74 to 1.05). Total events and symptom burden were lower in the dapagliflozin group than in the placebo group. Results were similar among patients with a left ventricular ejection fraction of 60% or more and those with a left ventricular ejection fraction of less than 60%, and results were similar in prespecified subgroups, including patients with or without diabetes. The incidence of adverse events was similar in the two groups. CONCLUSIONS: Dapagliflozin reduced the combined risk of worsening heart failure or cardiovascular death among patients with heart failure and a mildly reduced or preserved ejection fraction. (Funded by AstraZeneca; DELIVER ClinicalTrials.gov number, NCT03619213.).

[ARGEN-IAM-ST Registry: older adults with infarction: Are they all the same?] / ARGEN-IAM-ST: adultos mayores con infarto, ¿son todos iguales?

INTRODUCTION: Currently the patient is defined as an older adult (OA) when the age is at least 60 years. Given the long life expectancy, it is interesting to evaluate whether all OAs with acute myocardial infarction (AMI) are equal. The objectives were to know the prevalence of OA in AMI and within them, that of those ≥75 years of age and to analyze characteristics, reperfusion treatments and in-hospital mortality according to whether they are < or ≥ 75 years of age. METHODS: OA patients admitted to the National Registry of Infarction with ST segment elevation (ARGENIAM-ST) were analyzed. They were divided into group 1: 60-74 years old and group 2: ≥ 75 years old and compared with each other. RESULTS: 3626 AM, 75.9% from Group 1, the rest from Group 2. In group 2 there were more women, hypertensive and with a history of coronary arteries. There was a similar percentage of diabetes and dyslipidemia, but fewer of smokers. In Group 2, less reperfusion treatment was used (although more primary angioplasty), with similar door-to-balloon time. Patients in Group 2 received fewer medications of proven efficacy and in the hospital course, they had more bleeding (although not major), more heart failure and more mortality: 18.3% vs. 9.4%, p<0.001. Age ≥75 years was an independent predictor of mortality. CONCLUSIONS: one in four patients with AMI is over 75 years old; they receive less reperfusion, have more heart failure, bleeding and twice the mortality rate than patients between 60 and 74 years.

Introducción: Actualmente se define al paciente como adulto mayor (AM) si su edad es al menos de 60 años. Dada la expectativa de vida prolongada resulta interesante evaluar si todos los AM con infarto agudo de miocardio (IAM) son iguales. Los objetivos fueron conocer la prevalencia de AM en el IAM y dentro de ellos, la de los ≥75 años y analizar características, tratamientos de reperfusión y mortalidad intrahospitalaria de acuerdo a si son < o ≥ 75 años. Métodos: Se analizaron los pacientes AM ingresados en el Registro Nacional de Infarto con supra desnivel del segmento ST (ARGEN-IAM-ST). Se los dividió en grupo 1: 60-74 años y grupo 2: ≥ 75 años y se compararon entre sí. Resultados: AM 3626, 75.92% del Grupo 1, el resto del Grupo 2. En el grupo 2 hubo más mujeres, hipertensos y con antecedentes coronarios. Hubo similar porcentaje de diabetes y dislipidemia, pero menos de tabaquistas. En el Grupo 2 se empleó menos tratamiento de reperfusión (aunque más angioplastia primaria), con similar tiempo puerta-balón. Los pacientes del Grupo 2 recibieron menos medicamentos de probada eficacia y en la evolución hospitalaria, más sangrado (aunque no mayor), más insuficiencia cardíaca y más mortalidad: 18.3% vs 9.4%, p<0.001. La edad ≥75 años fue predictor independiente de mortalidad. Conclusiones: Uno de cada cuatro AM con IAM tiene más de 75 años; estos pacientes reciben menos reperfusión, presentan más insuficiencia cardíaca y sangrado y tienen el doble de mortalidad que los pacientes de entre 60 y 74 años.

Geographical variation in patient characteristics and outcomes in heart failure with mildly reduced and preserved ejection fraction.

AIMS: Compared to heart failure (HF) with reduced ejection fraction, HF with preserved ejection fraction (HFpEF), and HF with mildly reduced ejection fraction (HFmrEF) are increasing in prevalence, yet little is known about the geographic variation in patient characteristics, treatments and outcomes among these two HF phenotypes. The aim of this study was to investigate geographic differences in HFpEF and HFmrEF. METHODS AND RESULTS: We conducted an individual patient analysis of five clinical trials enrolling patients with HFpEF or HFmrEF from North America (NA), Latin America (LA), Western Europe (WE), Central/Eastern Europe and Russia (CEER), and Asia-Pacific (AP). We compared regions using descriptive statistics and multivariable regression models. Among the 19 959 patients included, 4066 (23.1%) had HFmrEF and 15 353 (76.9%) HFpEF. Regardless of HF phenotype, patients from WE were oldest, and those in CEER youngest. LA had the largest portion of females and NA most black patients. Obesity and diabetes were most prevalent in NA and hypertension and coronary heart disease most common in CEER. Self-reported health status varied strikingly and was the worst in NA and best in AP. Among patients with HFmrEF, rates of the primary composite endpoint (cardiovascular death or HF hospitalization) were: NA 12.56 per 100 patient-years (/100py), AP 11.67/100py, CEER 10.12/100py, LA 8.90/100py, and WE 8.43/100py, driven by differences in the rate of HF hospitalization. The corresponding values in HFpEF were 11.47/100py, 7.80/100py, 5.47/100py, 5.92/100py, and 7.80/100py, respectively. CONCLUSIONS: There is substantial geographic variation in patient characteristics, treatment and outcomes among patients with HFpEF and HFmrEF. These findings have implications for interpretation and generalizability of trial results, design and conduct of future trials, and optimization of care for these patients.

Cardio-Renal-Metabolic Overlap, Outcomes, and Dapagliflozin in Heart Failure With Mildly Reduced or Preserved Ejection Fraction.

BACKGROUND: Cardio-renal-metabolic (CRM) conditions are individually common among patients with heart failure (HF), but the prevalence and influence of overlapping CRM conditions in this population have not been well-studied. OBJECTIVES: This study aims to evaluate the impact of overlapping CRM conditions on clinical outcomes and treatment effects of dapagliflozin in HF. METHODS: In this post hoc analysis of DELIVER (Dapagliflozin Evaluation to Improve the Lives of Patients With Preserved Ejection Fraction Heart Failure), we evaluated the prevalence of comorbid CRM conditions (atherosclerotic cardiovascular disease, chronic kidney disease, and type 2 diabetes), their impact on the primary outcome (cardiovascular death or worsening HF), and treatment effects of dapagliflozin by CRM status. RESULTS: Among 6,263 participants, 1,952 (31%), 2,245 (36%), and 1,236 (20%) had 1, 2, and 3 additional CRM conditions, respectively. HF alone was uncommon (13%). Greater CRM multimorbidity was associated with older age, higher body mass index, longer-duration HF, worse health status, and lower left ventricular ejection fraction. Risk of the primary outcome increased with higher CRM overlap, with 3 CRM conditions independently associated with highest risk of primary events (adjusted HR: 2.16 [95% CI: 1.72-2.72]; P < 0.001) compared with HF alone. Relative benefits of dapagliflozin on the primary outcome were consistent irrespective of the type of CRM overlap (Pinteraction = 0.773) and by the number of CRM conditions (Pinteraction = 0.734), with greatest absolute benefits among those with highest CRM multimorbidity. Estimated 2-year numbers needed to treat with dapagliflozin to prevent 1 primary event were approximately 52, 39, 33, and 24 for participants with 0, 1, 2, and 3 additional CRM conditions at baseline, respectively. Adverse events between treatment arms were similar across the CRM spectrum. CONCLUSIONS: CRM multimorbidity was common and associated with adverse outcomes among patients with HF and left ventricular ejection fraction >40% in DELIVER. Dapagliflozin was safe and effective across the CRM spectrum, with greater absolute benefits among those with highest CRM overlap (Dapagliflozin Evaluation to Improve the LIVEs of Patients With Preserved Ejection Fraction Heart Failure [DELIVER]; NCT03619213).

Atrial Fibrillation and Dapagliflozin Efficacy in Patients With Preserved or Mildly Reduced Ejection Fraction.

BACKGROUND: Atrial fibrillation (AF) is common in heart failure (HF), is associated with worse outcomes compared with sinus rhythm, and may modify the effects of therapy. OBJECTIVES: This study examined the effects of dapagliflozin according to the presence or not of AF in the DELIVER (Dapagliflozin Evaluation to Improve the LIVEs of Patients With PReserved Ejection Fraction Heart Failure) trial. METHODS: A total of 6,263 patients with HF with New York Heart Association functional class II-IV, left ventricular ejection fraction >40%, evidence of structural heart disease, and elevated N-terminal pro-B-type natriuretic peptide levels were randomized to dapagliflozin or placebo. Clinical outcomes and the effect of dapagliflozin, according to AF status, were examined. The primary outcome was a composite of cardiovascular death or worsening HF. RESULTS: Of the 6,261 patients with data on baseline AF, 43.3% had no AF, 18.0% had paroxysmal AF, and 38.7% had persistent/permanent AF. The risk of the primary endpoint was higher in patients with AF, especially paroxysmal AF, driven by a higher rate of HF hospitalization: no AF, HF hospitalization rate per 100 person-years (4.5 [95% CI: 4.0-5.1]), paroxysmal AF (7.5 [95% CI: 6.4-8.7]), and persistent/permanent AF (6.4 [95% CI: 5.7-7.1]) (P < 0.001). The benefit of dapagliflozin on the primary outcome was consistent across AF types: no AF, HR: 0.89 (95% CI: 0.74-1.08); paroxysmal AF, HR: 0.75 (95% CI: 0.58-0.97); persistent/permanent AF, HR: 0.79 (95% CI: 0.66-0.95) (Pinteraction = 0.49). Consistent effects were observed for HF hospitalization, cardiovascular death, all-cause mortality, and improvement in the KCCQ-TSS. CONCLUSIONS: In DELIVER, the beneficial effects of dapagliflozin compared with placebo on clinical events and symptoms were consistent, irrespective of type of AF at baseline. (Dapagliflozin Evaluation to Improve the LIVEs of Patients With PReserved Ejection Fraction Heart Failure. [DELIVER]; NCT03619213).

Dapagliflozin and New York Heart Association functional class in heart failure with mildly reduced or preserved ejection fraction: the DELIVER trial.

AIMS: This pre-specified analysis of the DELIVER trial examined whether clinical benefits of dapagliflozin in heart failure (HF) with left ventricular ejection fraction (LVEF) >40% varied by baseline New York Heart Association (NYHA) class and examined the treatment effects on NYHA class over time. METHODS AND RESULTS: Treatment effects of dapagliflozin by baseline NYHA class II (n = 4713) versus III/IV (n = 1549) were examined on the primary endpoint (cardiovascular death or worsening HF event) and key secondary endpoints. Effects of dapagliflozin on change in NYHA class at 4, 16, and 32 weeks were also evaluated. Higher baseline NYHA class was associated with older age, female sex, greater comorbidity burden, lower LVEF, and higher natriuretic peptide levels. Participants with baseline NYHA class III/IV, as compared with II, were independently more likely to experience the primary endpoint (adjusted hazard ratio [HR] 1.16 [95% confidence interval, 1.02-1.33]) and all-cause death (adjusted HR 1.22 [1.06-1.40]). Dapagliflozin consistently reduced the risk of the primary endpoint compared with placebo, irrespective of baseline NYHA class (HR 0.81 [0.70-0.94] for NYHA class II vs. HR 0.80 [0.65-0.98] for NYHA class III/IV; pinteraction  = 0.921). Participants with NYHA class III/IV had greater improvement in Kansas City Cardiomyopathy Questionnaire total symptom scores between baseline and 32 weeks (+4.8 [2.5-7.1]) versus NYHA class II (+1.8 [0.7-2.9]; pinteraction  = 0.011). Dapagliflozin was associated with higher odds of any improvement in NYHA class (odds ratio [OR] 1.32 [1.16-1.51]), as well as improvement to NYHA class I (OR 1.43 [1.17-1.75]), versus placebo at 32 weeks, with benefits seen as early as 4 weeks. CONCLUSIONS: Among symptomatic patients with HF and LVEF >40%, treatment with dapagliflozin provided clinical benefit irrespective of baseline NYHA class and was associated with early and sustained improvements in NYHA class over time.

Baseline Characteristics of Patients With HF With Mildly Reduced and Preserved Ejection Fraction: DELIVER Trial.

OBJECTIVES: This report describes the baseline clinical profiles and management of DELIVER (Dapagliflozin Evaluation to Improve the Lives of Patients With Preserved Ejection Fraction Heart Failure) trial participants and how these compare with those in other contemporary heart failure with preserved ejection fraction trials. BACKGROUND: The DELIVER trial was designed to evaluate the effects of the sodium-glucose cotransporter-2 inhibitor dapagliflozin on cardiovascular death, heart failure (HF) hospitalization, or urgent HF visits in patients with HF with mildly reduced and preserved left ventricular ejection fraction (LVEF). METHODS: Adults with symptomatic HF and LVEF >40%, with or without type 2 diabetes mellitus, elevated N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels, and evidence of structural heart disease were randomized to dapagliflozin 10 mg once daily or matching placebo. RESULTS: A total of 6,263 patients were randomized (mean age: 72 ± 10 years; 44% women; 45% type 2 diabetes mellitus; 45% with body mass index ≥30 kg/m2; and 57% with history of atrial fibrillation or flutter). Most participants had New York Heart Association functional class II symptoms (75%). Baseline mean LVEF was 54.2 ± 8.8% and median NT-proBNP of 1,399 pg/mL (IQR: 962 to 2,210 pg/mL) for patients in atrial fibrillation/flutter compared with 716 pg/mL (IQR: 469 to 1,281 pg/mL) in those who were not. Patients in both hospitalized and ambulatory settings were enrolled, including 10% enrolled in-hospital or within 30 days of a hospitalization for HF. Eighteen percent of participants had HF with improved LVEF. CONCLUSIONS: DELIVER is the largest and broadest clinical trial of this population to date and enrolled high-risk, well-treated patients with HF with mildly reduced and preserved LVEF. (Dapagliflozin Evaluation to Improve the Lives of Patients With Preserved Ejection Fraction Heart Failure [NCT03619213]).

Immediate extubation after off-pump coronary artery bypass graft surgery in 1,196 consecutive patients: feasibility, safety and predictors of when not to attempt it.

OBJECTIVE: The purpose of this study was to evaluate the feasibility and safety of immediate extubation (ultrafast-track anesthesia [UFTA]) in the operating room, and the predictors of when not to attempt it in patients undergoing off-pump coronary artery bypass graft surgery (OPCAB). DESIGN: Case series. SETTING: A private hospital. PARTICIPANTS: One thousand one hundred ninety-six patients undergoing OPCAB surgery, representing 4 years of a single anesthesia service's practice (3 anesthesiologists), were evaluated for immediate extubation. All patients were considered amenable to immediate extubation if specific criteria were met. INTERVENTION: Patients received general anesthesia (UFTA protocol) and underwent off-pump coronary artery bypass graft surgery. MEASUREMENTS AND MAIN RESULTS: One thousand sixty-five patients (89%) met extubation criteria and were extubated successfully in the operating room. By multivariate analysis, the following independent predictors of avoiding immediate extubation were identified: reoperation (odds ratio [OR] = 3.9, p < 0.001), pre-existing renal disease (OR = 3.1, p < 0.0001), diabetes (OR = 1.7, p < 0.007), preoperative intra-aortic balloon pump placement (OR = 7.4, p < 0.0001), and total surgical time (OR = 3.7, p < 0.0001). Patients who met extubation criteria had lower in-hospital reintubation (2.5% v 16%, p < 0.001), myocardial infarction (1.03% v 4.58%, p = 0.001), renal insufficiency (2.2% v 7.63%, p < 0.001), stroke (0.4% v 2.29%, p = 0.032), and mortality rates (1.2% v 10.7%, p < 0.001) than patients who did not. CONCLUSIONS: UFTA is feasible and safe in most patients undergoing OPCAB surgery. Baseline and intraoperative data predicted when immediate extubation should not be attempted.

The addition of echocardiographic parameters to PESI risk score improves mortality prediction in patients with acute pulmonary embolism: PESI-Echo score.

AIMS: Pulmonary embolism severity index (PESI) has been developed to help physicians make decisions about the treatment of patients with pulmonary embolism (PE). The combination of echocardiographic parameters could potentially improve PESI's mortality prediction. To assess the additional prognostic value of tricuspid annular plane systolic excursion (TAPSE) and pulmonary artery systolic pressure (PASP) when combined with the PESI score in patients with PE to predict short-term mortality. METHODS AND RESULTS: A multicentric prospective study database of patients admitted with PE in 75 academic centres in Argentina between 2016 and 2017 was analysed. Patients with an echocardiogram at admission with simultaneous measurement of TAPSE and PASP were included. PESI risk score was calculated blindly and prospectively, and in-hospital all-cause mortality was assessed. Of 684 patients, 91% had an echocardiogram, PASP and TAPSE could be estimated simultaneously in 355 (57%). All-cause in-hospital mortality was 11%. The receiver operating characteristic analysis showed an area under the curve (AUC) [95% confidence interval (CI)] of 0.76 (0.72-0.81), 0.74 (0.69-0.79), and 0.71 (0.62-0.79), for the PESI score, PASP, and TAPSE parameters, respectively. When PESI score was combined with the echocardiogram parameters (PESI + PASP-TAPSE = PESI-Echo), an AUC of 0.82 (0.77-0.86) was achieved (P = 0.007). A PESI-Echo score ≥128 was the optimal cut-off point for predicting hospital mortality: sensitivity 82% (95% CI 67-90%), specificity 69% (95% CI 64-74%). The global net reclassification improvement was 9.9%. CONCLUSIONS: PESI-Echo score is a novel tool for assessing mortality risk in patients with acute PE. The addition of echocardiographic parameters to a validated clinical score improved the prediction of hospital mortality.

Training in statistical analysis reduces the framing effect among medical students and residents in Argentina.

PURPOSE: The framing effect refers to a phenomenon wherein, when the same problem is presented using different representations of information, people make significant changes in their decisions. This study aimed to explore whether the framing effect could be reduced in medical students and residents by teaching them the statistical concepts of effect size, probability, and sampling for use in the medical decision-making process. Methods: Ninety-five second-year medical students and 100 second-year medical residents of Austral University and Buenos Aires University, Argentina were invited to participate in the study between March and June 2017. A questionnaire was developed to assess the different types of framing effects in medical situations. After an initial administration of the survey, students and residents were taught statistical concepts including effect size, probability, and sampling during 2 individual independent official biostatistics courses. After these interventions, the same questionnaire was randomly administered again, and pre- and post-intervention outcomes were compared among students and residents. RESULTS: Almost every type of framing effect was reproduced either in the students or in the residents. After teaching medical students and residents the analytical process behind statistical concepts, a significant reduction in sample-size, risky-choice, pseudo-certainty, number-size, attribute, goal, and probabilistic formulation framing effects was observed. Conclusion: The decision-making of medical students and residents in simulated medical situations may be affected by different frame descriptions, and these framing effects can be partially reduced by training individuals in probability analysis and statistical sampling methods.

Care bundle to reduce readmission in patients with heart failure: a modified Delphi consensus panel in Argentina.

OBJECTIVES: The aim of this study was to develop consensus among Argentine cardiologists on a care bundle to reduce readmissions of patients with heart failure (HF). SETTING: Hospitals and cardiology clinics in Argentina that provide in-hospital care for patients with HF. PARTICIPANTS: Twenty-four cardiology experts participated in the two online rounds and 18 (75%) of them participated in the third-round meeting. METHODS: This study used a mixed-method design; it was conducted between August 2019 and January 2020. The development of a care bundle (a set of evidence-based interventions applied to improve clinical outcomes) involved three phases: (1) a literature review to define the list of interventions to be evaluated; (2) a modified Delphi panel to select interventions for the bundle and (3) definition of the HF care bundle. Also, the process included three rounds of scoring. RESULTS: Twenty-six interventions were evaluated. The interventions in the final bundle covered four categories: medication, continuum of care, lifestyle habits, predischarge tests. These were: medication: beta-blockers, angiotensin receptor neprilysin inhibitors or ACE-inhibitors, furosemide and antimineralocorticoids; continuum of care: follow-up appointment, daily weight monitoring; lifestyle habits: smoking cessation counselling and low-sodium diet; predischarge tests: renal function, ionogram, blood pressure control, echocardiogram and determination of decompensating cause. CONCLUSION: Following a systematic mixed-method approach, we have developed a care bundle of interventions that could decrease readmission of patients with HF. The application of this bundle could contribute to scale evidence-based interventions.

[External validation of prognostic scores for in-hospital and 30-day mortality in patients with pulmonary embolism in Argentina]. / Validación externa de puntajes pronósticos para mortalidad hospitalaria y a treinta días en pacientes con tromboembolismo pulmonar en Argentina.

Prognostic models have been developed to help make decisions in the treatment of pulmonary embolism (PE). Among them, the Pulmonary Embolism Severity Index (PESI) and simplified PESI (sPESI), however they have not been validated in our setting. The objective was to evaluate PESI and sPESI scores ability to predict in-hospital mortality in patients with PE in Argentina. We analyzed a database of 75 academic centers in Argentina that included consecutive patients with PE from 2016 to 2017. The scores were prospectively calculated, and in-hospital and 30 days mortality were assessed. The validation of the models was assessed through discrimination using the area under the ROC curve (AUC), and calibration with the Hosmer-Lemeshow (HL) test. The cohort included 684 patients. In-hospital mortality was 12% and at 30 days an additional 3.2% mortality was registered. The AUC (95% CI) for in-hospital mortality was 0.75 (0.69-0.81) for PESI and 0.77 (0.71-0.82) for sPESI (p = 0.2 between scores). AUC of 30-day mortality 0.75 (0.68-0.8) and 0.78 (0.74-0.83) for PESI and sPESI (p = 0.2 between scores). Both models presented good calibration. The PESI and sPESI risk scores demonstrated similar performance and good accuracy in predicting hospital and 30-day mortality. Both scores can be established as simple prediction tools for PE patients in Argentina.

Se han desarrollado modelos pronósticos para guiar el tratamiento del tromboembolismo pulmonar agudo (TEP), entre ellos el Pulmonary Embolism Severity Index (PESI) y PESI simplificado (sPESI), los cuales no han sido validados en nuestro país. El objetivo fue evaluar la capacidad de los puntajes de riesgo PESI y sPESI para predecir mortalidad hospitalaria en pacientes con TEP en Argentina. Analizamos una base de datos de 75 centros académicos de Argentina que incluyeron pacientes consecutivos con TEP desde el 2016 al 2017. Las puntuaciones se calcularon de forma prospectiva y se evaluó la mortalidad hospitalaria y a 30 días. La validación de los modelos se realizó a través de discriminación mediante área bajo la curva ROC (AUC) y calibración con la prueba de Hosmer-Lemeshow (HL). La cohorte total incluyó 684 pacientes. La mortalidad hospitalaria fue 12% y a los 30 días se registró un 3.2% adicional de mortalidad. El AUC (IC 95%) para la mortalidad hospitalaria fue de 0.75 (0.69-0.81) para PESI y 0.77 (0.71-0.82) para sPESI (p = 0.25 entre puntajes). El AUC de mortalidad a los 30 días fue de 0.75 (0.68-0.8) y 0.78 (0.74-0.83) para PESI y sPESI (p = 0.2 entre puntajes). Ambos modelos presentaron buena calibración y demostraron un desempeño similar para predecir mortalidad hospitalaria y a 30 días, por lo que pueden establecerse como herramientas de predicción simples para pacientes con TEP en Argentina.

ARGEN-IAM-ST: adultos mayores con infarto, ¿son todos iguales? / ARGEN-IAM-ST Registry: older adults with infarction: Are they all the same?

Resumen Introducción : Actualmente se define al paciente como adulto mayor (AM) si su edad es al menos de 60 años. Dada la expectativa de vida prolongada resulta intere sante evaluar si todos los AM con infarto agudo de mio cardio (IAM) son iguales. Los objetivos fueron conocer la prevalencia de AM en el IAM y dentro de ellos, la de los ≥75 años y analizar características, tratamientos de reperfusión y mortalidad intrahospitalaria de acuerdo a si son < o ≥ 75 años. Métodos : Se analizaron los pacientes AM ingresados en el Registro Nacional de Infarto con supra desnivel del segmento ST (ARGEN-IAM-ST). Se los dividió en grupo 1: 60-74 años y grupo 2: ≥ 75 años y se compararon entre sí. Resultados : AM 3626, 75.92% del Grupo 1, el resto del Grupo 2. En el grupo 2 hubo más mujeres, hipertensos y con antecedentes coronarios. Hubo similar porcentaje de diabetes y dislipidemia, pero menos de tabaquistas. En el Grupo 2 se empleó menos tratamiento de reperfusión (aunque más angioplastia primaria), con similar tiempo puerta-balón. Los pacientes del Grupo 2 recibieron me nos medicamentos de probada eficacia y en la evolución hospitalaria, más sangrado (aunque no mayor), más insuficiencia cardíaca y más mortalidad: 18.3% vs 9.4%, p<0.001. La edad ≥75 años fue predictor independiente de mortalidad. Conclusiones : Uno de cada cuatro AM con IAM tiene más de 75 años; estos pacientes reciben menos reper fusión, presentan más insuficiencia cardíaca y sangrado y tienen el doble de mortalidad que los pacientes de entre 60 y 74 años.

Abstract Introduction : Currently the patient is defined as an older adult (OA) when the age is at least 60 years. Given the long life expectancy, it is interesting to evaluate whether all OAs with acute myocardial infarction (AMI) are equal. The objectives were to know the prevalence of OA in AMI and within them, that of those ≥75 years of age and to analyze characteristics, reperfusion treat ments and in-hospital mortality according to whether they are < or ≥ 75 years of age. Methods : OA patients admitted to the National Reg istry of Infarction with ST segment elevation (ARGEN-IAM-ST) were analyzed. They were divided into group 1: 60-74 years old and group 2: ≥ 75 years old and compared with each other. Results : 3626 AM, 75.9% from Group 1, the rest from Group 2. In group 2 there were more women, hyperten sive and with a history of coronary arteries. There was a similar percentage of diabetes and dyslipidemia, but fewer of smokers. In Group 2, less reperfusion treat ment was used (although more primary angioplasty), with similar door-to-balloon time. Patients in Group 2 received fewer medications of proven efficacy and in the hospital course, they had more bleeding (although not major), more heart failure and more mortality: 18.3% vs. 9.4%, p<0.001. Age ≥75 years was an independent predictor of mortality. Conclusions : one in four patients with AMI is over 75 years old; they receive less reperfusion, have more heart failure, bleeding and twice the mortality rate than patients between 60 and 74 years.

Protection of Distal Embolization in High-Risk Patients with Acute ST-Segment Elevation Myocardial Infarction (PREMIAR).

Distal embolization may decrease myocardial reperfusion after primary percutaneous coronary intervention (PCI). Nonetheless, results of previous trials assessing the role of distal protection during primary PCI have been controversial. The Protection of Distal Embolization in High-Risk Patients with Acute ST-Segment Elevation Myocardial Infarction Trial (PREMIAR) was a prospective, randomized, controlled study designed to evaluate the role of filter-based distal protection during PCI in patients with acute ST-segment elevation myocardial infarction at high risk of embolic events (including only baseline Thrombolysis In Myocardial Infarction grade 0 to 2 flow). The primary end point was continuous monitoring of ST-segment resolution. Secondary end points included core laboratory analysis of angiographic myocardial blush, ejection fraction measured by cardiac ultrasound, and adverse cardiac events at 6 months. From a total of 194 enrolled patients, 140 subjects were randomized to PCI with or without embolic protection, and 54 were included in a registry arm due to the presence of angiographic exclusion criteria. Baseline characteristics were comparable between arms. The rate of complete ST-segment resolution (>or=70%) at 60 minutes was similar in patients treated with or without distal protection (61.2% vs 60.3%, respectively, p = 0.85). Angiographic myocardial blush (67% vs 70.7%, p = 0.73), in-hospital ejection fraction (47.4 +/- 9.9% vs 45.3 +/- 7.3%, p = 0.29), and combined end point of death, heart failure, or reinfarction at 6 months (14.3% vs 15.7%, p = 0.81) were consistently achieved in a similar proportion in the 2 groups. In conclusion, the use of filter-based distal protection is safe and effectively retrieves debris; however, such use does not translate into an improvement of myocardial reperfusion, left ventricular performance, or clinical outcomes.

Actitudes y prácticas clínicas en la insuficiencia cardiaca en médicos de Argentina / Attitudes and Clinical Practice in Heart Failure Among Physicians in Argentina

RESUMEN Introducción: Es necesario identificar áreas de mejora en la atención de los pacientes con insuficiencia cardíaca (IC), para implementar intervenciones educativas con el fin de optimizar la calidad de atención y los resultados clínicos. Objetivo: Evaluar las actitudes, conocimiento, confianza y formas de atención a pacientes con IC, de médicos de Argentina. Material y métodos: Estudio de corte transversal a través de una encuesta auto administrada para evaluar los patrones de práctica clínica y las actitudes/percepciones relacionadas con el diagnóstico, tratamiento y seguimiento de pacientes con IC en el ámbito ambulatorio y el hospitalario. Se incluyeron médicos de 22 centros de Argentina que participaron de un programa integral educativo de IC entre marzo y julio de 2021. Resultados: Se encuestaron 50 médicos, con edad media de 41 (±8) años; el 86% eran cardiólogos. En pacientes con fracción de eyección ventricular izquierda deprimida, el 24% inicia con la terapia cuádruple, y privilegia en un 88% los betabloqueantes, 72% los inhibidores duales de la neprilisina y la angiotensina II, 48% los antagonistas de los receptores mineralocorticoides y en el 34% los inhibidores del cotrasportador sodio glucosa 2. El 50% de los encuestados refiere que no llega a alcanzar la cuádruple terapia. El 44% refiere sentirse muy inseguro con el diagnóstico de IC con fracción de eyección preservada. El 46% de los médicos considera relevante la determinación de anemia o ferropenia. Conclusión: Se identificaron brechas de conocimiento en el diagnóstico y tratamiento de la IC, especialmente en el diagnóstico de IC con fracción de eyección preservada, y la cuádruple terapia. Esto refuerza la necesidad de implementar estrategias educativas que tengan como foco el conocimiento y seguridad, y las formas de atención.

ABSTRACT Background: It is necessary to identify areas of improvement in the care of heart failure (HF) patients and thus implement educational interventions to optimize quality of care and their clinical outcomes. Objective: The aim of this study was to evaluate attitudes, knowledge, confidence and care pathways of patients with HF among physicians in Argentina. Methods: We conducted a cross-sectional study using a self-administered survey to evaluate clinical practice patterns, and attitudes/perceptions regarding the diagnosis, treatment and follow-up of HF patients in the outpatient and inpatient setting. The survey respondents were physicians from 22 centers in Argentina who participated in a comprehensive educational program for the care of HF patients carried out between March and July 2021. Results: A total of 50 physicians were surveyed; mean age was 41±8 years and 86% were cardiologists. In patients with reduced left ventricular ejection fraction, 24% of the respondents reporting starting with quadruple therapy; 88% chose beta-blockers, 72% dual angiotensin receptor-neprilysin inhibitors, 48% mineralocorticoid receptor antagonists and 34% sodium-glucose cotransporter-2 inhibitors. Fifty percent of the survey respondents answered that they do not reach quadruple therapy. Fortyfour percent of physicians reported they felt very uncertain about the diagnosis of HF with preserved ejection fraction, and 46% considered relevant to evaluate the presence of anemia or iron deficiency Conclusion: There are knowledge gaps in the diagnosis and treatment of HF, especially in the diagnosis of HF with preserved ejection fraction, and in the indication of quadruple therapy. This highlights the need for implementing educational strategies that focus on knowledge, confidence, and care pathways.

Uso de recursos y costos de hospitalizaciones por insufi ciencia card í aca: un estudio retrospective multic é ntrico en Argentina.

OBJECTIVES: Heart failure has a great impact on health budget, mainly due to the cost of hospitalizations. Our aim was to describe health resource use and costs of heart failure admissions in three important institutions in Argentina. METHODS: Multi-center retrospective cohort study, with descriptive and analytical analysis by subgroups of ejection fraction, blood pressure and renal function at admission. Generalized linear models were used to assess the association of independent variables to main outcomes. RESULTS: We included 301 subjects; age 75.3±11.8 years; 37% women; 57% with depressed ejection fraction; 46% of coronary etiology. Blood pressure at admission was 129.8±29.7 mmHg; renal function 57.9±26.2 ml/min/1.73 m2. Overall mortality was 7%. Average length of stay was 7.82±7.06 days (median 5.69), and was significantly longer in patients with renal impairment (8.9 vs. 8.18; p=0.03) and shorter in those with high initial blood pressure (6.08±4.03; p=0.009). Mean cost per patient was AR$68,861±96,066 (US$=8,071; 1US$=AR$8.532); 71% attributable to hospital stay, 20% to interventional procedures and 6.7% to diagnostic studies. Variables independently associated with higher costs were depressed ejection fraction, presence of valvular disease, and impaired renal function. CONCLUSIONS: Resource use and costs associated to hospitalizations for heart failure is high, and the highest proportion is attributable to the costs related to hospital stay.

Insuficiencia cardíaca crónica en Argentina. OFFICE IC AR, un registro conjunto de la Sociedad Argentina de Cardiología y de la Federación Argentina de Cardiología / Chronic Heart Failure in Argentina. OFFICE IC AR, a joint registry of the Argentine Society of Cardiology and the Argentine Federation of Cardiology

RESUMEN Introducción: Diferentes registros argentinos de insuficiencia cardíaca crónica (ICC) fueron generados en los últimos 25 años, en forma individual por la Sociedad Argentina de Cardiología (SAC) y la Federación Argentina de Cardiología (FAC), con diversa representatividad. Los últimos datos conocidos datan de 2013. El Registro OFFICE IC AR fue encarado en forma conjunta por la SAC y la FAC para conocer la realidad de la ICC en Argentina. Objetivos: Describir en forma amplia y comprensiva las características salientes de la ICC en Argentina, incluyendo las características de los pacientes, el uso de recursos diagnósticos y terapéuticos, la adherencia a las guías de práctica y el pronóstico a mediano y largo plazo. Material y Métodos: Estudio prospectivo de cohorte, de pacientes con ICC de al menos 6 meses de evolución, alejados de una internación por al menos 3 meses. Se recabaron datos clínicos y paraclínicos. Los pacientes fueron categorizados, de acuerdo a la fracción de eyección ventricular izquierda (FEVI), en IC con FE reducida, ICFER (≤40%); IC con FE en el rango medio, ICFErm, ahora denominada IC con FE levemente reducida, ICFElr (41%-49%), e IC con FE preservada, ICFEP (≥50%). En seguimiento de al menos 1 año se registró la incidencia de hospitalización por insuficiencia cardíaca (HIC), muerte cardiovascular (MCV) y muerte de todas las causas (MTC) Resultados: Entre noviembre de 2017 y enero de 2020, 100 cardiólogos de todo el país incluyeron 1004 pacientes con ICC; edad media 65,8 ± 12,4 años, 74,6% hombres, FEVI conocida en el 93,8%. El 68,4% tenía ICFER, el 16% ICFElr y el 15,6% ICFEP. Hubo alta prevalencia de comorbilidades, incluyendo diabetes y anemia en el 30%, e insuficiencia renal crónica en el 22%. Fue elevada la utilización de antagonistas neurohormonales (ANH): 89,5% betabloqueantes; 57,3% inhibidores o antagonistas del sistema renina angiotensina, 28,9% sacubitril valsartán y 78,6% antialdosterónicos. En 69% se utilizó triple terapia. Su empleo fue mayor en la ICFER, pero elevado incluso en la ICFEP. En una mediana de seguimiento de 1,7 años la incidencia anual de MCV/HIC fue 12,8%, la de MCV 6,6% y la de MTC 8,4%, sin diferencia entre las distintas categorías de FEVI. Conclusiones: En el primer registro conjunto de ICC SAC-FAC se verificó elevada prevalencia de ICFER, alta prevalencia de comorbilidades, uso frecuente de ANH y pronóstico acorde a los registros internacionales.

ABSTRACT Background: Several Argentine registries on chronic heart failure (CHF) have been generated over the past 25 years, either individually by the Argentine Society of Cardiology (SAC) or the Argentine Federation of Cardiology (FAC), with different representativeness. The last known data are from 2013. The OFFICE IC AR registry was jointly undertaken by the SAC and FAC to know the reality of CHF in Argentina. Objective: The aim of this registry was to extensively and comprehensively describe the outstanding characteristics of CHF in Argentina, including patient characteristics, use of diagnostic and therapeutic resources, adherence to practice guidelines and mid-and long-term prognosis. Methods: This was a prospective cohort study of patients with at least 6-month evolution CHF and not hospitalized for at least the past 3 months. Clinical and paraclinical data were collected. Patients were categorized according to left ventricular ejection fraction (LVEF), into HF with reduced EF, HFrEF (≤40 %), HF with midrange EF, now termed HF with mildly reduced EF, HFmrEF (41%-49%), and HF with preserved EF, HFpEF (≥50%). The incidence of hospitalization for HF (HHF), cardiovascular mortality (CVM) and all-cause mortality (ACM) was recorded for at least 1-year follow-up. Results: Between November 2017 and January 2020, 100 cardiologists from all over the country included 1004 patients with CHF. Mean age was 65.8 ± 12.4 years, 74.6% were men, and 93.8% had known LVEF. In 68.4% of cases, patients had HFrEF, 16% HFmrEF and 15.6% HFpEF. A high prevalence of comorbidities was found, including diabetes and anemia in 30% of cases, and chronic renal failure in 22%. There was high use of neurohormonal antagonists (NHA): 89.5% betablockers, 57.3% renin-angiotensin system inhibitors or antagonists, 28.9% sacubitril-valsartan and 78.6% aldosterone antagonists. Triple therapy was used in 69% of patients, with higher prescription in HFrEF, but elevated even on HFpEF. At a median follow-up of 1.7 years, the annual incidence of CVM/HHF was 12.8%, CVM 6.6% and ACM 8.4%, without statistical differences between the different LVEF categories. Conclusions: This first SAC-FAC joint CHF registry verified a high prevalence of HFrEF, a high prevalence of comorbidities, frequent use of NHA and prognosis according to international registries.

Comparison of the amplitude of the P-wave from intracardiac electrocardiogram obtained by means of a central venous catheter filled with saline solution to that obtained via esophageal electrocardiogram.

Recognition of the P wave is important for the correct characterization of atrial and ventricular arrhythmias. When the P wave is difficult to identify on standard electrocardiography (SECG), either esophageal electrocardiography (EECG) or intracardiac electrocardiography (IC-ECG), central venous catheter may be used. The feasibility of these methods has already been demonstrated, but there is no published study comparing them. This study compared the amplitude of the P wave obtained by IC-ECG with those of the P waves obtained by EECG and SECG. SECG, EECG, and IC-ECG were performed on each patient. IC-ECG and EECG made it possible to register P waves larger than registered by SECG (p <0.00001). The difference between the largest P waves obtained with IC-ECG (5.93 +/- 3.56 mm) and EECG (4.67 +/- 2.16 mm) was not statistically significant (p = 0.1953). In conclusion, IC-ECG is easy to perform and magnifies the P wave at least as effectively as EECG.

Validación externa de puntajes pronósticos para mortalidad hospitalaria y a treinta días en pacientes con tromboembolismo pulmonar en Argentina / External validation of prognostic scores for in-hospital and 30-day mortality in patients with pulmonary embolism in Argentina

Resumen Se han desarrollado modelos pronósticos para guiar el tratamiento del tromboembolismo pulmonar agudo (TEP), entre ellos el Pulmonary Embolism Severity Index (PESI) y PESI simplificado (sPESI), los cuales no han sido validados en nuestro país. El objetivo fue evaluar la capacidad de los puntajes de riesgo PESI y sPESI para predecir mortalidad hospitalaria en pacientes con TEP en Argentina. Analizamos una base de datos de 75 centros académicos de Argentina que incluyeron pacientes consecutivos con TEP desde el 2016 al 2017. Las puntuaciones se calcularon de forma prospectiva y se evaluó la mortalidad hospitalaria y a 30 días. La validación de los modelos se realizó a través de discriminación mediante área bajo la curva ROC (AUC) y calibración con la prueba de Hosmer-Lemeshow (HL). La cohorte total incluyó 684 pacientes. La mortalidad hospitalaria fue 12% y a los 30 días se registró un 3.2% adicional de mortalidad. El AUC (IC 95%) para la mortalidad hospitalaria fue de 0.75 (0.69-0.81) para PESI y 0.77 (0.71-0.82) para sPESI (p = 0.25 entre puntajes). El AUC de mortalidad a los 30 días fue de 0.75 (0.68-0.8) y 0.78 (0.74-0.83) para PESI y sPESI (p = 0.2 entre puntajes). Ambos modelos presentaron buena calibración y demostraron un desempeño similar para predecir mortalidad hospitalaria y a 30 días, por lo que pueden establecerse como herramientas de predicción simples para pacientes con TEP en Argentina.

Abstract Prognostic models have been developed to help make decisions in the treatment of pulmonary embolism (PE). Among them, the Pulmonary Embolism Severity Index (PESI) and simplified PESI (sPESI), however they have not been validated in our setting. The objective was to evaluate PESI and sPESI scores ability to predict in-hospital mortality in patients with PE in Argentina. We analyzed a database of 75 academic centers in Argentina that included consecutive patients with PE from 2016 to 2017. The scores were prospectively calculated, and in-hospital and 30 days mortality were assessed. The validation of the models was assessed through discrimination using the area under the ROC curve (AUC), and calibration with the Hosmer-Lemeshow (HL) test. The cohort included 684 patients. In-hospital mortality was 12% and at 30 days an additional 3.2% mortality was registered. The AUC (95% CI) for in-hospital mortality was 0.75 (0.69-0.81) for PESI and 0.77 (0.71-0.82) for sPESI (p = 0.2 between scores). AUC of 30-day mortality 0.75 (0.68-0.8) and 0.78 (0.74-0.83) for PESI and sPESI (p = 0.2 between scores). Both models presented good calibration. The PESI and sPESI risk scores demonstrated similar performance and good accuracy in predicting hospital and 30-day mortality. Both scores can be established as simple prediction tools for PE patients in Argentina.