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1.
Arch Cardiol Mex ; 94(1): 71-78, 2024.
Article in English | MEDLINE | ID: mdl-38507302

ABSTRACT

BACKGROUND: Aortic stenosis (AS) is currently the most common valvular disease, with an estimated prevalence of over 4% in octogenarians. OBJECTIVE: To describe the prevalence of moderate-severe aortic stenosis (AS) in patients with wild type transthyretin amyloidosis (ATTRwt). Also, describe the clinical features, echocardiographic characteristics and clinical evolution. METHOD: Retrospective cohort of patients with diagnosis of ATTRwt, belonging to Hospital Italiano de Buenos Aires Institutional Amyloidosis Registry, from 30/11/2007 to 31/05/2021. Patients follow up was carried out through the institution clinical history. The prevalence of moderate-severe AE was estimated and presented as a percentage with its 95% confidence interval (95% CI). The characteristics were compared by groups according to whether or not they had moderate-severe AS. RESULTS: 104 patients with ATTRwt were included. Median follow up was 476 days [interquartile range: 192-749]. Moderate-severe AS prevalence at the ATTRwt time of diagnosis was 10.5% (n = 11; 95% CI: 5-18%). The median age of patients with AS moderate-severe at the time of diagnosis of ATTRwt was 86 years [78-91] and the male sex predominated (82%). Most of the patients had a history of heart failure (n = 8) and atrial fibrillation (n = 8) prior to the diagnosis of ATTRwt. Most of the patients were subclassified as low flow low gradient severe AS group (n = 7). Four patients underwent some intervention on the aortic valve. During follow-up, 5 patients (46%) were hospitalized for decompensated heart failure and 4 (36%) died. CONCLUSIONS: In our cohort, the coexistence of both pathologies had a similar prevalence as reported in the international literature. It was an elderly population with a high percentage of atrial fibrillation and history of heart failure. Most of the patients presented with severe AS with low flow low gradient.


ANTECEDENTES: La estenosis aórtica (EA) es actualmente la enfermedad valvular más frecuente, con una prevalencia estimada de más del 4 % en octogenarios. OBJETIVO: Describir la prevalencia de estenosis aórtica (EA) moderada-grave en pacientes con amiloidosis por transtiretina wild type (ATTRwt). Además, describir las características clínicas, ecocardiográficas y la evolución en este grupo de pacientes. MÉTODO: Estudio de cohorte retrospectiva de pacientes con diagnóstico de ATTRwt, pertenecientes al Registro Institucional de Amiloidosis del Hospital Italiano de Buenos Aires, en el periodo del 30/11/2007 al 31/05/2021. El seguimiento de los pacientes se realizó a través de la historia clínica electrónica de la institución. Se estimó la prevalencia de EA moderada-grave, que se presenta como porcentaje con su intervalo de confianza del 95% (IC 95%). Se compararon las características por grupos según tuvieran o no EA moderada-grave. RESULTADOS: Se incluyeron 104 pacientes con diagnóstico de ATTRwt. La mediana de seguimiento fue de 476 días [rango intercuartílico: 192-749]. La prevalencia de EA moderada-grave al momento del diagnóstico de ATTRwt fue del 10.5% (n = 11; IC95%: 5-18%). La mediana de edad de los pacientes con EA fue de 86 años [78-91] y predominó el sexo masculino (81.8%). La mayoría de los pacientes tenían el antecedente de insuficiencia cardiaca (n = 8) y fibrilación auricular (n = 8). Predominaron los pacientes con EA grave de bajo flujo y bajo gradiente (n = 7). Cuatro pacientes fueron sometidos a alguna intervención en la válvula aórtica. Durante el seguimiento, 5 pacientes (46%) tuvieron internaciones por insuficiencia cardiaca descompensada y 4 (36%) fallecieron. CONCLUSIONES: En nuestra cohorte, la coexistencia de ambas patologías tuvo una prevalencia similar a la reportada en la literatura internacional. Se trató de una población añosa con alto porcentaje de fibrilación auricular y antecedente de insuficiencia cardiaca. La mayoría presentaron EA grave de bajo flujo y bajo gradiente.


Subject(s)
Amyloid Neuropathies, Familial , Aortic Valve Stenosis , Atrial Fibrillation , Heart Failure , Aged, 80 and over , Humans , Male , Aged , Retrospective Studies , Atrial Fibrillation/complications , Prevalence , Amyloid Neuropathies, Familial/complications , Amyloid Neuropathies, Familial/epidemiology , Heart Failure/etiology , Heart Failure/complications , Aortic Valve Stenosis/complications , Aortic Valve Stenosis/epidemiology
2.
Nutr Metab Cardiovasc Dis ; 33(5): 925-933, 2023 05.
Article in English | MEDLINE | ID: mdl-36890070

ABSTRACT

AIMS: The role of lipoprotein(a) [Lp(a)] as a possibly causal risk factor for atherosclerotic artery disease and aortic valve stenosis has been well established. However, the information available on the association between Lp(a) levels and mitral valve disease is limited and controversial. The main objective of the present study was to assess the association between Lp(a) levels and mitral valve disease. DATA SYNTHESIS: This systematic review was performed according to PRISMA guidelines (PROSPERO CRD42022379044). A literature search was performed to detect studies that evaluated the association between Lp(a) levels or single-nucleotide polymorphisms (SNPs) related to high levels of Lp(a) and mitral valve disease, including mitral valve calcification and valve dysfunction. Eight studies including 1,011,520 individuals were considered eligible for this research. The studies that evaluated the association between Lp(a) levels and prevalent mitral valve calcification found predominantly positive results. Similar findings were reported in two studies that evaluated the SNPs related to high levels of Lp(a). Only two studies evaluated the association of Lp(a) and mitral valve dysfunction, showing contradictory results. CONCLUSIONS: This research showed disparate results regarding the association between Lp(a) levels and mitral valve disease. The association between Lp(a) levels and mitral valve calcification seems more robust and is in line with the findings already demonstrated in aortic valve disease. New studies should be developed to clarify this topic.


Subject(s)
Heart Valve Diseases , Lipoprotein(a) , Mitral Valve , Humans , Heart Valve Diseases/blood , Heart Valve Diseases/epidemiology , Heart Valve Diseases/genetics , Lipoprotein(a)/blood , Lipoprotein(a)/genetics , Mitral Valve/pathology , Risk Factors
3.
Rev. argent. cardiol ; 90(3): 224-230, ago. 2022. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1407147

ABSTRACT

RESUMEN Introducción: Varios estudios han evaluado la asociación entre los niveles plasmáticos de lipoproteína (a) [Lp(a)] y la aparición de eventos relacionados con la estenosis valvular aórtica, aunque los resultados fueron contradictorios. Objetivo: El objetivo de esta revisión fue analizar la capacidad predictiva de los niveles elevados de Lp(a) sobre los eventos clínicos relacionados con la estenosis valvular aórtica. Material y métodos: Esta revisión sistemática se realizó de acuerdo con las recomendaciones PRISMA y STROBE. Se realizó una búsqueda en diferentes bases de datos con el objetivo de identificar estudios de cohorte que evaluaran la asociación entre los niveles de Lp(a) y los eventos de interés. El punto final primario fue la incidencia de eventos clínicos relacionados con la estenosis aórtica (reemplazo valvular aórtico, muerte u hospitalización). Esta revisión fue registrada en PROSPERO. Resultados: Se consideraron elegibles para el análisis siete estudios observacionales con un total de 58 783 pacientes. Los valores elevados de Lp(a) se asociaron con un mayor riesgo de eventos relacionados con la estenosis valvular aórtica en la mayoría de los estudios evaluados (entre un 70% y aproximadamente 3 veces más riesgo), a pesar de ajustar por otros factores de riesgo. Conclusión: Esta revisión sugiere que los niveles elevados de Lp(a) se asocian con una mayor incidencia de eventos clínicos relacionados con la estenosis valvular aórtica. Sin embargo, y considerando las limitaciones de este estudio, la utilidad clínica de la Lp(a) como marcador pronóstico en la enfermedad valvular aórtica deberá confirmarse en futuras investigaciones.


ABSTRACT Background: Several studies have evaluated the association between lipoprotein(a) plasma levels [Lp(a)] and the occurrence of aortic valve stenosis related events, with contradictory results. Objective: The main objective of this systematic review was to analyze the predictive capacity of elevated Lp(a) levels on major clinical events associated with aortic valve stenosis. Methods: This systematic review was conducted in accordance with PRISMA and STROBE recommendations. A search was carried out in order to identify studies with a cohort design evaluating the association between Lp(a) levels and the events of interest. The primary endpoint was the incidence of clinical events related with aortic valve stenosis (aortic valve replacement, death or hospitalization). This review was registered in PROSPERO. Results: Seven observational studies with a total of 58 783 patients were eligible for analysis. Our findings showed that the presence of elevated Lp(a) levels was associated with an increased risk of events related with aortic valve stenosis in most of the studies evaluated (between 70% and approximately 3-fold higher risk), despite adjusting for other risk factors. Conclusion: This review suggests that elevated Lp(a) levels are associated with a higher incidence of aortic valve stenosis related clinical events. However, considering the limitations of this study, the clinical usefulness of Lp(a) as a prognostic marker in aortic valve disease should be confirmed in future investigations.

4.
Rev. argent. cardiol ; 89(6): 501-506, dic. 2021. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1407084

ABSTRACT

RESUMEN Introducción: En nuestro medio existe escasa evidencia sobre la incidencia de rehospitalización, factores predictores y evolución clínica de los pacientes con estenosis aórtica (EAo) grave valorados por un Heart Team. Objetivos: Determinar la prevalencia, los predictores de rehospitalización y la evolución clínica de pacientes con EAo grave valorados por el Heart Team. Material y métodos: Estudio unicéntrico de cohorte retrospectivo, que incluyó pacientes con EAo grave valorados por el Heart Team. Se analizaron las características del total de la cohorte, y según la presencia o ausencia de rehospitalización, en un seguimiento de 2 años. Resultados: La edad promedio de la población (n = 275) fue de 83,3 ± 6,9 años, con 51,1% de sexo femenino y una incidencia de rehospitalización de 21,5%. Los pacientes rehospitalizados fueron más añosos (85,54 ± 6,66 vs. 82,62 ± 6,87 años; p = 0,003), más frágiles (97,4% vs. 89,3%; p = 0,035), con mayor riesgo quirúrgico (STS score 6,11 ± 4,79 vs. 4,72 ± 4,12; p = 0,033), y fibrilación auricular (FA) previa (40,7% vs. 23,6%; p = 0,009), en comparación con los no rehospitalizados. Se identificó la FA previa como factor de riesgo independiente de rehospitalización (OR 4,59; IC 95% 1,95-10,81, p<0,001). La incidencia de rehospitalización fue de 33,9% para el implante percutáneo de válvula aórtica (TAVI), 1,7% para la cirugía de reemplazo valvular (CRVAo), y 64,4% para el tratamiento conservador (p = 0,002). A 2 años, la rehospitalización se asoció a una mayor mortalidad (47,5% vs. 13,4%; p <0,001). Conclusiones: En pacientes con EAo grave valorados por un Heart Team se observó una significativa incidencia de rehospitalización a 2 años, que se asoció a mayor mortalidad. La FA fue un factor de riesgo independiente de rehospitalización.


ABSTRACT Background: There is scarce evidence in our setting regarding the prevalence of readmission, risk factors and clinical evolution of patients with severe aortic stenosis (AS) evaluated by a Heart Team. Objective: The aim of this study was to assess the prevalence, predictors and clinical evolution of readmission in patients with severe AS evaluated by a Heart Team. Methods: This was an observational, single-center, retrospective cohort study including patients with severe AS evaluated by a Heart Team. Total cohort characteristics were analyzed at baseline, and after stratification according to the presence or absence of readmission during a 2-year follow-up period. Results: Mean population age (n = 275) was 83.3 ± 6.9 years, and 51.1% were female patients. The prevalence of readmissions was 21.5%. Readmitted patients were older (85.54 ± 6.66 vs. 82.62 ± 6.87 years; p = 0.003) and had greater frailty (97,4% vs. 89.3%; p = 0.035), surgical risk (STS 6.11 ± 4.79 vs. 4.72 ± 4.12; p = 0.033), and previous history of atrial fibrillation (AF) (40.7% vs. 23.6%; p = 0.009), compared with non-readmitted patients. Prior AF was an independent risk factor of readmission (OR 4.59 [IC95% 1.95-10.81]; p <0.001). The prevalence of readmission was 33.9% for percutaneous aortic valve implantation (TAVI), 1.7% for valve replacement surgery (AVRS), and 64.4% for conservative treatment (p = 0.002). At 2 years, readmission was associated with lower survival (47.5% vs. 13.4%; p <0.001). Conclusions: In patients with severe AS evaluated by a Heart Team, a significant prevalence of readmission was observed at 2 years, and this was associated with higher mortality. Atrial fibrillation was an independent risk factor of readmissions.

5.
Rev. argent. cardiol ; 89(3): 197-203, jun. 2021. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1356874

ABSTRACT

RESUMEN Introducción: Una proporción significativa de los pacientes con válvula aórtica bicúspide (VAB) desarrollan una dilatación de la aorta que los predispone a serias complicaciones. Objetivos: Estimar la prevalencia de dilatación aórtica aplicando los valores de referencia de la población argentina en pacientes con VAB y la influencia de los distintos métodos de indexación (talla, T, y superficie corporal, SC). Materiales y métodos: Se incluyeron consecutivamente 581 pacientes adultos con VAB. Se definió la dilatación según el criterio propuesto por las guías (fórmulas de Devereux) y sobre la base de los valores propuestos por el registro MATEAR (Medición de Aorta Torácica por Ecocardiografía en Argentina). Resultados: La edad media fue de 44,9 años (±16), 68,7% sexo masculino. Sobre la base del registro MATEAR se observó alta prevalencia de dilatación de la raíz aórtica o aorta ascendente (72,3% según T y 61,5% según SC) que resultó, en la raíz, mayor que la obtenida según las fórmulas de Devereux (T 47% vs. 31,5%; SC 35,2% vs. 26,5% p < 0,001). Se observó una subestimación sistemática al indexar por SC en pacientes con índice de masa corporal >25 kg/m² (57,8% de la población). Conclusiones: La prevalencia de dilatación aórtica, cuando aplicamos los valores de referencia para la población argentina, fue alta y en la raiz significativamente mayor que la determinada por puntos de corte originados en otras poblaciones. Se observó una subestimación sistemática al corregir por superficie corporal en pacientes con índice de masa corporal >25 kg/m², por lo que indexar por talla sería la opción más recomendable.


ABSTRACT Background: A significant proportion of patients with bicuspid aortic valve (BAV) develop aortic dilation predisposing to serious complications. Objective: The aim of this study was to estimate the prevalence of aortic dilation applying reference values for the Argentine population in patients with BAV, and the influence of different indexing methods [height, (H) and body surface area (BSA)] Methods: A total of 581 adult patients with BAV were consecutively included in the study. Aortic dilation was defined according to guideline criteria (Devereux formula) and the reference values suggested by the Echocardiography Thoracic Aortic Assessment in Argentina (MATEAR) registry. Results: Mean age was 44.9±16 years and 68.7% were men. A high prevalence of aortic root or ascending aorta dilation was observed based on MATEAR criteria (72.3% according to H and 61.5 % according to BSA). This was significantly higher for the aortic root than the one obtained with the Devereux formula (H: 47% vs. 31.5%; BSA: 35.2% vs. 26.5% P <0.001). A systematic underestimation was found when indexing for BSA in patients with body mass index (BMI) >25 kg/m² (57.8% of population). Conclusions: When applying the reference values for the Argentine population the prevalence of aortic dilation was high and significantly greater than at the root that determined by cutoff points originating in other populations. Systematic underestimation was observed when correcting for BSA in patients with BMI >25 kg/m², so indexing by H would be the most recommended option.

7.
Int J Cardiol ; 317: 111-120, 2020 Oct 15.
Article in English | MEDLINE | ID: mdl-32380249

ABSTRACT

BACKGROUND: Several parameters have proven useful in assessing prognosis in outpatients with heart failure with preserved ejection fraction (HFpEF). In contrast, prognostic determinants in HFpEF hospitalized for an acute event are poorly investìgated. AIM: To determine the predictive value of NT-proBNP, and diastolic function (assessed by E/e'), in patients with HFpEF hospitalized for acute heart failure. METHODS AND RESULTS: We evaluated 205 consecutive HFpEF patients admitted for acute heart failure (median age: 76[53,81], 36% male, median EF: 61 [54,77]). We assessed clinical, echocardiographic, and NT-proBNP values, on admission and at discharge. Primary end-point was the composite of all-cause death and/or HF rehospitalization. After a mean follow up of 28±10 months, 82 patients met the primary end-point; there were 30 deaths (14.6%), and 72 patients (35%) were rehospitalized for HF. By multivariable analysis, predictors of the composite end-point were: discharge E/e´ ≥14 (HR: 4.63 CI 95%: 2.71-18.2, p<0.0001), discharge NT-proBNP ≥1500 pg/ml (HR: 5.23, CI 95%: 2.87-17.8, p < 0.0001), ≥50% NT-proBNP decrease between admission and discharge (HR: 0.62, CI 95%: 0.25-0.79, p = 0.019). Combining E/e´ and NT-proBNP values at discharge further and significantly improved discrimination power compared to each variable analyzed separately (AUC, NT-proBNP at discharge: 0.80; E/e´ at discharge: 0.77; E/e´ + NT-proBNP: 0.88; p < 0.01). CONCLUSIONS: In HFpEF patients hospitalized with acute heart failure, assessment of E/e´ ratio and NT-proBNP at discharge provides prognostic information on top of other variables, and allows to easily identify a population at higher risk of subsequent death or rehospitalization for heart failure, during a medium-term follow up.


Subject(s)
Heart Failure , Aged , Biomarkers , Echocardiography , Female , Heart Failure/diagnostic imaging , Humans , Male , Natriuretic Peptide, Brain , Peptide Fragments , Prognosis , Stroke Volume , Ventricular Function, Left
8.
Cardiovasc Diagn Ther ; 10(1): 12-23, 2020 Feb.
Article in English | MEDLINE | ID: mdl-32175223

ABSTRACT

BACKGROUND: Myocardial contraction fraction (MCF), a volumetric measurement of myocardial shortening, may help to improve risk stratification in patients with severe aortic stenosis (AS) referred for transcatheter aortic valve replacement (TAVR) especially in those with preserved left ventricular ejection fraction (LVEF). We investigated the association between MCF and 1-year all-cause mortality in patients with severe AS who underwent TAVR. METHODS: MCF was calculated as the ratio of stroke volume (SV) to myocardial volume. Patients referred for TAVR from 2011 to 2015 were eligible for inclusion and were divided into two groups according to the estimated MCF (MCF ≤30% vs. MCF >30%). The primary endpoint was 1-year all-cause mortality. A Cox regression analysis was performed for independent risk factors of mortality. Receiver operating curve (ROC) was performed for assessing the best cut-off point of MCF for predicting the primary outcome [area under the curve (AUC) 0.60; 95% confidence interval (CI): 0.453-0.725]. Baseline patient and echo characteristics were included for multivariate analysis. RESULTS: Of 126 patients (mean age 82±5 years, 45.2% male), 44.4% showed MCF ≤30%. Patient with reduced MCF showed higher body mass index (28.1±5.8 vs. 26.0±4.5 kg/m2, P=0.031), higher surgical EuroScore II (6.2±4.5 vs. 4.7±3.2, P=0.032), lower LVEF (54.2%±11.9% vs. 58.5%±10.8%, P=0.042) and more severe AS (indexed aortic valve area 0.40±0.09 vs. 0.45±0.10 cm2/m2, P=0.030). The median follow-up was of 14 [3.5-33] months, and 16% of patients died. Patients with MCF ≤30% showed significantly increased all-cause mortality (Log-rank P=0.002). In a multivariate model adjusting for clinical and echo variables, MCF ≤30% was independently associated with increased risk for all-cause 1-year mortality [hazard ratio (HR) 2.76, 95% CI: 1.03-7.77, P=0.04]. CONCLUSIONS: In a population of patients undergoing TAVR, MCF ≤30% was independently associated with increased mortality.

9.
Rev. argent. cardiol ; 86(3): 96-102, jun. 2018.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1003194

ABSTRACT

RESUMEN: Introducción: La miectomía septal ampliada constituye el tratamiento de elección para pacientes con miocardiopatía hipertrófica obstructiva sintomática, refractarios al tratamiento farmacológico. Objetivos: Evaluar los resultados posoperatorios, el cambio en los síntomas y la evolución ecocardiográfica de una población sometida a miectomía septal ampliada por miocardiopatía hipertrófica obstructiva sintomática. Material y métodos: Desde noviembre de 2011 a octubre de 2017, se intervino un total de 28 pacientes. Se analizaron la evolución posoperatoria, clínica y ecocardiográfica al alta y al seguimiento. Resultados: Edad promedio 53,3 ± 13,4 años. La mortalidad perioperatoria (< 30 días) fue del 0%. Un paciente falleció a los 90 días (3,5%). No se produjeron comunicaciones interventriculares, daño de la válvula aórtica ni se reemplazó la válvula mitral en ningún paciente. El 91% de ellos se encontraban con disnea en CF III-IV en el preoperatorio, los restantes tenían angina o síncope. En el seguimiento, el 92,8% estaban asintomáticos, 1 paciente en CF III y otro en CF II. El gradiente preoperatorio basal promedio fue de 53,5 mmHg y con valsalva 86,4 mmHg; los gradientes basal y con valsalva posoperatorios fueron 9,4 mmHg y 13,5 mmHg (p < 0,01). Al seguimiento, los gradientes en reposo y con valsalva fueron aún más bajos, 8,3 mmHg y 10,7 mmHg, respectivamente (p: NS). Nueve pacientes (32%) presentaban insuficiencia mitral moderada a grave previa por movimiento anterior sistólico o patología intrínseca mitral. Se detectó solo un paciente con insuficiencia mitral moderada asintomática en el seguimiento (3,5%). La mediana de seguimiento fue de 400 días, Pc 25-75 de 695 días (mínimo de 30 días y el máximo de 1868 días). Conclusión: Con la miectomía septal ampliada se obtiene una mejoría hemodinámica y clínica de los pacientes sintomáticos, con bajo número de complicaciones posoperatorias. Esto tiene como resultado una mejor calidad de vida.

10.
Eur Heart J ; 39(15): 1281-1291, 2018 04 14.
Article in English | MEDLINE | ID: mdl-29020352

ABSTRACT

Aims: In degenerative mitral regurgitation (DMR), lack of mortality scores predicting death favours misperception of individual patients' risk and inappropriate decision-making. Methods and results: The Mitral Regurgitation International Database (MIDA) registries include 3666 patients (age 66 ± 14 years; 70% males; follow-up 7.8 ± 5.0 years) with pure, isolated, DMR consecutively diagnosed by echocardiography at tertiary (European/North/South-American) centres. The MIDA Score was derived from the MIDA-Flail-Registry (2472 patients with DMR and flail leaflet-Derivation Cohort) by weighting all guideline-provided prognostic markers, and externally validated in the MIDA-BNP-Registry (1194 patients with DMR and flail leaflet/prolapse-Validation Cohort). The MIDA Score ranged from 0 to 12 depending on accumulating risk factors. In predicting total mortality post-diagnosis, the MIDA Score showed excellent concordance both in Derivation Cohort (c = 0.78) and Validation Cohort (c = 0.81). In the whole MIDA population (n = 3666 patients), 1-year mortality with Scores 0, 7-8, and 11-12 was 0.4, 17, and 48% under medical management and 1, 7, and 14% after surgery, respectively (P < 0.001). Five-year survival with Scores 0, 7-8, and 11-12 was 98 ± 1, 57 ± 4, and 21 ± 10% under medical management and 99 ± 1, 82 ± 2, and 57 ± 9% after surgery (P < 0.001). In models including all guideline-provided prognostic markers and the EuroScoreII, the MIDA Score provided incremental prognostic information (P ≤ 0.002). Conclusion: The MIDA Score may represent an innovative tool for DMR management, being able to position a given patient within a continuous spectrum of short- and long-term mortality risk, either under medical or surgical management. This innovative prognostic indicator may provide a specific framework for future clinical trials aiming to compare new technologies for DMR treatment in homogeneous risk categories of patients.


Subject(s)
Mitral Valve Insufficiency/mortality , Mitral Valve Insufficiency/surgery , Mitral Valve/pathology , Mitral Valve/surgery , Aged , Atrial Fibrillation/etiology , Clinical Decision-Making/ethics , Databases, Factual , Echocardiography , Female , Follow-Up Studies , Humans , Male , Middle Aged , Mitral Valve/diagnostic imaging , Mitral Valve Insufficiency/diagnostic imaging , Mitral Valve Insufficiency/physiopathology , Predictive Value of Tests , Prognosis , Registries , Risk Factors
11.
J Am Coll Cardiol ; 68(12): 1297-307, 2016 09 20.
Article in English | MEDLINE | ID: mdl-27634121

ABSTRACT

BACKGROUND: Studies suggesting that B-type natriuretic peptide (BNP) may predict outcomes of mitral regurgitation (MR) are plagued by small size, inconsistent etiologies, and lack of accounting for shifting normal BNP ranges with age and sex. OBJECTIVES: This study assessed the effect of BNP activation on mortality in a large, multicenter cohort of patients with degenerative MR. METHODS: In 1,331 patients with degenerative MR, BNP was prospectively measured at diagnosis and expressed as BNPratio (ratio to upper limit of normal for age, sex, and assay). Initial surgical management was performed within 3 months of diagnosis in 561 patents. RESULTS: The cohort had a mean age of 64 ± 15 years, was 66% male, and had a mean ejection fraction 64 ± 9%, mean regurgitant volume 67 ± 31 ml, and low mean Charlson comorbidity index of 1.09 ± 1.76. Median BNPratio was 1.01 (25th and 75th percentiles: 0.42 to 2.36). Overall, BNPratio was a powerful, independent predictor of mortality (hazard ratio: 1.33 [95% confidence interval: 1.15 to 1.54]; p < 0.0001), whereas absolute BNP was not (p = 0.43). In patients who were initially treated medically (n = 770; 58%), BNPratio was a powerful, independent, and incremental predictor of mortality after diagnosis (hazard ratio: 1.61 [95% confidence interval: 1.34 to 1.93]; p < 0.0001). Higher BNP activation was associated with higher mortality (p < 0.0001). All subgroups, particularly severe MR, incurred similar excess mortality with BNP activation. After initial surgical treatment (n = 561, 42%) BNP activation did not impose excess long-term mortality (p = 0.23). CONCLUSIONS: In patients with degenerative MR, BNPratio is a powerful, independent, and incremental predictor of long-term mortality under medical management. BNPratio should be incorporated into the routine clinical assessment of patients with degenerative MR.


Subject(s)
Mitral Valve Insufficiency/blood , Mitral Valve Insufficiency/mortality , Natriuretic Peptide, Brain/blood , Aged , Female , Humans , Male , Middle Aged , Mitral Valve Insufficiency/surgery , Prospective Studies , Survival Rate
12.
Rev. argent. cardiol ; 82(5): 366-372, oct. 2014. graf, tab
Article in Spanish | LILACS | ID: lil-734525

ABSTRACT

Introducción: La miocardiopatía hipertrófica es la miocardiopatía de origen genético más común y en nuestro medio no hay información disponible acerca de las características basales y de la evolución de los pacientes con esta patología. Objetivos: Conocer el perfil clínico de pacientes con miocardiopatía hipertrófica e identificar predictores de mala evolución. Material y métodos: Se incluyeron 143 pacientes con miocardiopatía hipertrófica en el Hospital Italiano de Buenos Aires entre 2005 y 2011. Resultados: La mediana de edad de la población fue de 66 años y el 52% eran mujeres. La mayoría de los pacientes (92%) presentaron distribución asimétrica, el 60% obstrucción dinámica. Con una mediana de seguimiento de 2,11 años (rango intercuartil 25-75: 0,75-3,70), la mortalidad total fue del 5,59%. El síntoma más frecuente fue la disnea (36%); le siguieron la angina (17%) y el síncope (14%). Las variables que se asociaron en forma independiente con la disnea fueron la obstrucción dinámica, la insuficiencia mitral mayor o igual a moderada, el diámetro de la aurícula izquierda y el sexo femenino. La obstrucción dinámica se asoció en forma independiente con la angina. El espesor máximo presentó una relación directa e independiente con el síncope, mientras que la fracción de eyección y la hipertrofia ventricular izquierda o las T negativas en el electrocardiograma tuvieron una relación inversa. Los pacientes que se internaron por insuficiencia cardíaca descompensada tuvieron mayor mortalidad en forma independiente. Conclusiones: Al igual que en otras series, en nuestra población se objetivó que la miocardiopatía hipertrófica es una enfermedad muy heterogénea. Es necesario realizar un estudio prospectivo para validar los predictores de riesgo evaluados en este trabajo.


Introduction: Hypertrophic cardiomyopathy is the most frequent genetic cardiomyopathy and there is no available information on baseline characteristics and outcome of patients with this disease in our country. Objectives: To know the clinical profile of patients with hypertrophic cardiomyopathy and to identify predictors of adverse outcome. Methods: One hundred and forty-three patients with hypertrophic cardiomyopathy at the Hospital Italiano of Buenos Aires between 2005 and 2011 were included in the study. Results: Median age was 66 years and 52% were women. Most patients presented an asymmetric distribution (92%) and 60% had dynamic obstruction. Mortality was 5.59% at a median follow-up of 2.11-years (25-75 IQR: 0.75-3.70). The most prevalent symptom was dyspnea (36%), followed by angina (17%) and syncope (14%). Dynamic obstruction, moderate or severe mitral regurgitation, left atrial diameter and female gender were independently associated with dyspnea. Dynamic obstruction was independently associated with angina. Maximum wall thickness was directly and independently associated with syncope, while ejection fraction and left ventricular hypertrophy or negative T in the electrocardiogram presented an inverse relationship. Mortality was independently associated with hospitalization for decompensated heart failure. Conclusions: Similar to previous studies, our population shows that hypertrophic cardiomyopathy is a heterogeneous disease. A prospective study is necessary to validate the risk predictors assessed in this study.

13.
Rev. argent. cardiol ; 82(5): 366-372, oct. 2014. graf, tab
Article in Spanish | BINACIS | ID: bin-131317

ABSTRACT

Introducción: La miocardiopatía hipertrófica es la miocardiopatía de origen genético más común y en nuestro medio no hay información disponible acerca de las características basales y de la evolución de los pacientes con esta patología. Objetivos: Conocer el perfil clínico de pacientes con miocardiopatía hipertrófica e identificar predictores de mala evolución. Material y métodos: Se incluyeron 143 pacientes con miocardiopatía hipertrófica en el Hospital Italiano de Buenos Aires entre 2005 y 2011. Resultados: La mediana de edad de la población fue de 66 años y el 52% eran mujeres. La mayoría de los pacientes (92%) presentaron distribución asimétrica, el 60% obstrucción dinámica. Con una mediana de seguimiento de 2,11 años (rango intercuartil 25-75: 0,75-3,70), la mortalidad total fue del 5,59%. El síntoma más frecuente fue la disnea (36%); le siguieron la angina (17%) y el síncope (14%). Las variables que se asociaron en forma independiente con la disnea fueron la obstrucción dinámica, la insuficiencia mitral mayor o igual a moderada, el diámetro de la aurícula izquierda y el sexo femenino. La obstrucción dinámica se asoció en forma independiente con la angina. El espesor máximo presentó una relación directa e independiente con el síncope, mientras que la fracción de eyección y la hipertrofia ventricular izquierda o las T negativas en el electrocardiograma tuvieron una relación inversa. Los pacientes que se internaron por insuficiencia cardíaca descompensada tuvieron mayor mortalidad en forma independiente. Conclusiones: Al igual que en otras series, en nuestra población se objetivó que la miocardiopatía hipertrófica es una enfermedad muy heterogénea. Es necesario realizar un estudio prospectivo para validar los predictores de riesgo evaluados en este trabajo.(AU)


Introduction: Hypertrophic cardiomyopathy is the most frequent genetic cardiomyopathy and there is no available information on baseline characteristics and outcome of patients with this disease in our country. Objectives: To know the clinical profile of patients with hypertrophic cardiomyopathy and to identify predictors of adverse outcome. Methods: One hundred and forty-three patients with hypertrophic cardiomyopathy at the Hospital Italiano of Buenos Aires between 2005 and 2011 were included in the study. Results: Median age was 66 years and 52% were women. Most patients presented an asymmetric distribution (92%) and 60% had dynamic obstruction. Mortality was 5.59% at a median follow-up of 2.11-years (25-75 IQR: 0.75-3.70). The most prevalent symptom was dyspnea (36%), followed by angina (17%) and syncope (14%). Dynamic obstruction, moderate or severe mitral regurgitation, left atrial diameter and female gender were independently associated with dyspnea. Dynamic obstruction was independently associated with angina. Maximum wall thickness was directly and independently associated with syncope, while ejection fraction and left ventricular hypertrophy or negative T in the electrocardiogram presented an inverse relationship. Mortality was independently associated with hospitalization for decompensated heart failure. Conclusions: Similar to previous studies, our population shows that hypertrophic cardiomyopathy is a heterogeneous disease. A prospective study is necessary to validate the risk predictors assessed in this study.(AU)

14.
J Am Soc Echocardiogr ; 26(7): 699-705, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23623592

ABSTRACT

BACKGROUND: Basal left atrial volume (LAV) indexed to body surface area (LAVI) predicts adverse events in patients with organic mitral regurgitation, but information is lacking regarding change in left atrial volume during follow-up. METHODS: One hundred forty-four asymptomatic patients (mean age, 71 ± 12 years; 66% women; mean ejection fraction, 66 ± 4.8%) with moderate to severe mitral regurgitation were prospectively included, with a median follow-up period of 2.76 years (interquartile range, 1.86-3.48 years). RESULTS: Fifty-four patients (37.50%) reached the combined end point of dyspnea and/or systolic dysfunction. Both basal and change in LAV were independently associated with the combined end point on multivariate analysis: for basal LAVI ≥ 55 mL/m(2), odds ratio, 2.26 (95% confidence interval, 1.04-4.88; P = .038), and for change in LAV ≥ 14 mL, odds ratio, 7.32 (95% confidence interval, 3.25-16.48; P < .001), adjusted for effective regurgitant orifice area and deceleration time. Combined event-free survival at 1, 2, and 3 years was significantly less in patients with basal LAVI ≥ 55 mL/m(2) (75%, 58%, and 43%) than in those with basal LAVI < 55 mL/m(2) (95%, 89%, and 77%) (log-rank test = 15.38, P = .0001). The incidence of the combined end point was highest (88%) in patients with basal LAVI ≥ 55 mL/m(2) and change in LAV ≥ 14 mL. CONCLUSIONS: Measurement of basal LAV and its increase during follow-up predict an adverse course in patients with moderate and severe asymptomatic mitral regurgitation. Hence, its assessment could be incorporated into the currently used algorithm for risk stratification and decision making in this group of patients.


Subject(s)
Echocardiography, Doppler/methods , Heart Atria/diagnostic imaging , Heart Atria/physiopathology , Mitral Valve Insufficiency/diagnostic imaging , Mitral Valve Insufficiency/physiopathology , Aged , Chi-Square Distribution , Endpoint Determination , Female , Follow-Up Studies , Humans , Logistic Models , Male , Predictive Value of Tests , Prognosis , Prospective Studies , ROC Curve , Survival Rate , Treatment Outcome
15.
Rev. chil. cardiol ; 32(2): 157-160, 2013. ilus
Article in Spanish | LILACS | ID: lil-688437

ABSTRACT

Se presenta el caso clínico de una mujer de 63 años de edad con Endocarditis de la Válvula Tricúspide que desarrolló tromboembolismo pulmonar y un síndrome de platipnea-ortodeoxia explicado por la presencia de un formen oval permeable. La paciente se recuperó satisfactoriamente después de un reemplazo de la válvula tricúspide.


The case of 63 year old woman with Endocarditis at the Tricuspid Valve, pulmonary and paradoxical embolism with platypnea-orthodeoxia syndrome is presented. The patient recovered after surgical replacement of the tricuspid valve.


Subject(s)
Humans , Female , Middle Aged , Endocarditis, Bacterial/surgery , Endocarditis, Bacterial/physiopathology , Dyspnea/etiology , Dyspnea/physiopathology
16.
Rev. argent. cardiol ; 80(5): 341-346, oct. 2012. ilus, tab
Article in Spanish | LILACS | ID: lil-662170

ABSTRACT

Introducción El tracto de salida del ventrículo izquierdo (TSVI) suele estar implicado con relativa frecuencia en alteraciones anatómicas y anatomofuncionales, que son objeto de estudios. Sin embargo, su dinámica normal también es importante, en particular en procedimientos que involucran su área, y los nuevos métodos de imágenes tridimensionales permiten evaluarla. Objetivo Evaluar la dinámica del TSVI durante el ciclo cardíaco por ecocardiografía tridimensional transesofágica (eco 3D TE). Material y métodos Se incluyeron en forma prospectiva 42 pacientes derivados para ecocardiografía transesofágica. Los estudios se realizaron con sonda transesofágica tridimensional, con adquisiciones de volumen completo integradas por 4 latidos gatillados para análisis off-line. El ciclo cardíaco se dividió en protosístole (S1), mesosístole (S2) y telesístole (S3) y en protodiástole (D1), mesodiástole (D2) y telediástole (D3). El área del TSVI se estimó por planimetría del eje corto por cortes ortogonales al eje mayor del TSVI en cada fase. Resultados La edad media fue de 67 ± 10 años; el 63% eran hombres. El área del TSVI (cm2) en las diferentes fases del ciclo cardíaco fue: S1: 4,44 ± 1,02; S2: 4,15 ± 0,91; S3: 3,9 ± 0,89; D1: 3,76 ± 0,98; D2: 3,89 ± 1,04; D3: 4,34 ± 1,11. El área máxima se observó en S1, correspondiendo a la aposición de cierre de la valva anterior mitral (VaM) y escasa excursión del septum interventricular (SIV) hacia el TSVI; el área mínima se observó en D1 coincidiendo con cierta persistencia del SIV en el TSVI y la apertura máxima de la VaM ocupando parte del TSVI. La modificación total del área fue del 15% ± 11% (p < 0,0001), cambiando además de forma parcialmente elíptica o circular (sístole) a marcadamente elíptica o semilunar (diástole). Conclusión El TSVI presenta una variación en su área y su forma durante el ciclo cardíaco, con dependencia fundamentalmente del movimiento del SIV (en sístole) y de la apertura mitral (en diástole).


Assessment of Left Ventricular Outflow Tract Dynamics During the Cardiac cycle by Three-Dimensional Echocardiography Background Anatomical and anatomo-functional disorders of the left ventricular outflow tract (LVOT) are subject of numerous studies. However, LVOT normal dynamic behavior, especially in procedures involving this area is also relevant, and may be evaluated with new three-dimensional imaging methods. Objective The aim of this study was to assess LVOT dynamics during the cardiac cycle with three-dimensional transesophageal echocardiography (TEE). Methods Forty two patients referred for transesophageal echocardiography (TEE) were prospectively included. All TEE studies were performed with a three-dimensional transesophageal probe. For complete volume images, 4 gated beats were acquired for off-line analysis. The cardiac cycle was divided in proto-systole (S1), mid-systole (S2) and tele-systole (S3) and proto-diastole (D1), mid-diastole (D2) and tele-diastole (D3). The LVOT area was measured by planimetry of the short axis, through orthogonal sections to the long axis of the LVOT in each phase. Results Mean age was 67 ± 10 years, and 63% of the patients were male. The LVOT area (cm2) in the different phases of the cardiac cycle was: S1: 4.44 ± 1.02; S2: 4.15 ± 0.91; S3: 3.9 ± 0.89; D1: 3.76 ± 0.98; D2: 3.89 ± 1.04; D3: 4.34 ± 1.11. Maximum area was observed in S1, corresponding to the closed position of the anterior leaflet of the mitral valve (AL) and reduced motion of the interventricular septum (IVS) towards LVOT; minimum area was obtained in D1 consistent with a certain persistence of IVS in the LVOT and maximal AL opening occupying part of the LVOT. Total area reduction was 15 ± 11% (p<0.0001), changing the LVOT from a partially elliptical or circular shape (systole) to a markedly elliptical or semilunar one (diastole). Conclusion The LVOT changes its area and shape during the cardiac cycle, depending basically on the movement of the IVS (during systole) and mitral valve opening (during diastole).

17.
Rev. argent. cardiol ; 80(5): 387-389, oct. 2012. ilus
Article in Spanish | LILACS | ID: lil-662178

ABSTRACT

El foramen oval permeable (FOP) es un defecto del septum interauricular que puede coexistir con aneurisma de éste y se asocia con pasaje de flujo de izquierda a derecha. Su presencia se ha vinculado con accidente cerebrovascular (ACV) embólico y con el síndrome de platipneaortodesoxia. En esta presentación se describe el caso de una paciente con síndrome de platipnea-ortodesoxia que representó un verdadero desafío diagnóstico, ya que ingresó a nuestra institución por neumonía y luego incidentalmente se diagnosticó una tromboembolia de pulmón (TEP). Dada la tórpida evolución y al evidenciarse disnea con desaturación que se acentuaba al sentarse, se realizó un ecocardiograma transesofágico (ETE) que mostró un FOP con aneurisma del septum interauricular y pasaje marcado de burbujas de derecha a izquierda en forma espontánea (en decúbito dorsal). Luego de completar tratamiento antibiótico, se procedió al cierre percutáneo del FOP con la colocación de un Amplatzer.


A patent foramen ovale (PFO) is an atrial septal defect with or without atrial septal aneurysm, associated with left-to-right shunt.It is also related with embolic stroke and platypnea-orthodeoxia syndrome.This report describes the case of a patient with platypnea-orthodeoxia syndrome, which represented a diagnostic challenge because she was admitted due to pneumonia but then was incidentally diagnosed with pulmonary thromboembolism (PTE). Given the unfavorable progression of her condition, and worsening of dyspnea with hypoxemia upon sitting, a transesophageal echocardiography (TEE) was performed, revealing a PFO with atrial septal aneurysm and marked right-to-left bubble passage occurring spontaneously (in dorsal recumbent position). After completion of antibiotic treatment, percutaneous closure of patent foramen ovale was performed with an Amplatzer device.

18.
Rev. argent. cardiol ; 80(5): 341-346, oct. 2012. ilus, tab
Article in Spanish | BINACIS | ID: bin-129033

ABSTRACT

Introducción El tracto de salida del ventrículo izquierdo (TSVI) suele estar implicado con relativa frecuencia en alteraciones anatómicas y anatomofuncionales, que son objeto de estudios. Sin embargo, su dinámica normal también es importante, en particular en procedimientos que involucran su área, y los nuevos métodos de imágenes tridimensionales permiten evaluarla. Objetivo Evaluar la dinámica del TSVI durante el ciclo cardíaco por ecocardiografía tridimensional transesofágica (eco 3D TE). Material y métodos Se incluyeron en forma prospectiva 42 pacientes derivados para ecocardiografía transesofágica. Los estudios se realizaron con sonda transesofágica tridimensional, con adquisiciones de volumen completo integradas por 4 latidos gatillados para análisis off-line. El ciclo cardíaco se dividió en protosístole (S1), mesosístole (S2) y telesístole (S3) y en protodiástole (D1), mesodiástole (D2) y telediástole (D3). El área del TSVI se estimó por planimetría del eje corto por cortes ortogonales al eje mayor del TSVI en cada fase. Resultados La edad media fue de 67 ± 10 años; el 63% eran hombres. El área del TSVI (cm2) en las diferentes fases del ciclo cardíaco fue: S1: 4,44 ± 1,02; S2: 4,15 ± 0,91; S3: 3,9 ± 0,89; D1: 3,76 ± 0,98; D2: 3,89 ± 1,04; D3: 4,34 ± 1,11. El área máxima se observó en S1, correspondiendo a la aposición de cierre de la valva anterior mitral (VaM) y escasa excursión del septum interventricular (SIV) hacia el TSVI; el área mínima se observó en D1 coincidiendo con cierta persistencia del SIV en el TSVI y la apertura máxima de la VaM ocupando parte del TSVI. La modificación total del área fue del 15% ± 11% (p < 0,0001), cambiando además de forma parcialmente elíptica o circular (sístole) a marcadamente elíptica o semilunar (diástole). Conclusión El TSVI presenta una variación en su área y su forma durante el ciclo cardíaco, con dependencia fundamentalmente del movimiento del SIV (en sístole) y de la apertura mitral (en diástole).(AU)


Assessment of Left Ventricular Outflow Tract Dynamics During the Cardiac cycle by Three-Dimensional Echocardiography Background Anatomical and anatomo-functional disorders of the left ventricular outflow tract (LVOT) are subject of numerous studies. However, LVOT normal dynamic behavior, especially in procedures involving this area is also relevant, and may be evaluated with new three-dimensional imaging methods. Objective The aim of this study was to assess LVOT dynamics during the cardiac cycle with three-dimensional transesophageal echocardiography (TEE). Methods Forty two patients referred for transesophageal echocardiography (TEE) were prospectively included. All TEE studies were performed with a three-dimensional transesophageal probe. For complete volume images, 4 gated beats were acquired for off-line analysis. The cardiac cycle was divided in proto-systole (S1), mid-systole (S2) and tele-systole (S3) and proto-diastole (D1), mid-diastole (D2) and tele-diastole (D3). The LVOT area was measured by planimetry of the short axis, through orthogonal sections to the long axis of the LVOT in each phase. Results Mean age was 67 ± 10 years, and 63% of the patients were male. The LVOT area (cm2) in the different phases of the cardiac cycle was: S1: 4.44 ± 1.02; S2: 4.15 ± 0.91; S3: 3.9 ± 0.89; D1: 3.76 ± 0.98; D2: 3.89 ± 1.04; D3: 4.34 ± 1.11. Maximum area was observed in S1, corresponding to the closed position of the anterior leaflet of the mitral valve (AL) and reduced motion of the interventricular septum (IVS) towards LVOT; minimum area was obtained in D1 consistent with a certain persistence of IVS in the LVOT and maximal AL opening occupying part of the LVOT. Total area reduction was 15 ± 11% (p<0.0001), changing the LVOT from a partially elliptical or circular shape (systole) to a markedly elliptical or semilunar one (diastole). Conclusion The LVOT changes its area and shape during the cardiac cycle, depending basically on the movement of the IVS (during systole) and mitral valve opening (during diastole).(AU)

19.
Rev. argent. cardiol ; 80(5): 387-389, oct. 2012. ilus
Article in Spanish | BINACIS | ID: bin-129025

ABSTRACT

El foramen oval permeable (FOP) es un defecto del septum interauricular que puede coexistir con aneurisma de éste y se asocia con pasaje de flujo de izquierda a derecha. Su presencia se ha vinculado con accidente cerebrovascular (ACV) embólico y con el síndrome de platipneaortodesoxia. En esta presentación se describe el caso de una paciente con síndrome de platipnea-ortodesoxia que representó un verdadero desafío diagnóstico, ya que ingresó a nuestra institución por neumonía y luego incidentalmente se diagnosticó una tromboembolia de pulmón (TEP). Dada la tórpida evolución y al evidenciarse disnea con desaturación que se acentuaba al sentarse, se realizó un ecocardiograma transesofágico (ETE) que mostró un FOP con aneurisma del septum interauricular y pasaje marcado de burbujas de derecha a izquierda en forma espontánea (en decúbito dorsal). Luego de completar tratamiento antibiótico, se procedió al cierre percutáneo del FOP con la colocación de un Amplatzer.(AU)


A patent foramen ovale (PFO) is an atrial septal defect with or without atrial septal aneurysm, associated with left-to-right shunt.It is also related with embolic stroke and platypnea-orthodeoxia syndrome.This report describes the case of a patient with platypnea-orthodeoxia syndrome, which represented a diagnostic challenge because she was admitted due to pneumonia but then was incidentally diagnosed with pulmonary thromboembolism (PTE). Given the unfavorable progression of her condition, and worsening of dyspnea with hypoxemia upon sitting, a transesophageal echocardiography (TEE) was performed, revealing a PFO with atrial septal aneurysm and marked right-to-left bubble passage occurring spontaneously (in dorsal recumbent position). After completion of antibiotic treatment, percutaneous closure of patent foramen ovale was performed with an Amplatzer device.(AU)

20.
Rev. argent. cardiol ; 80(4): 292-298, ago. 2012. ilus, tab
Article in Spanish | LILACS | ID: lil-657578

ABSTRACT

Introducción El péptido natriurético cerebral (BNP) y las troponinas son marcadores útiles para la estratificación de la tromboembolia pulmonar (TEP), pero se desconoce cuál tiene mejor asociación con la gravedad del cuadro. Objetivo Evaluar ambos marcadores en forma comparativa dentro de una población de riesgo moderado y alto. Material y métodos Se elaboró un registro prospectivo de los pacientes con diagnóstico de TEP que presentaran troponina I (TI) o BNP positivos. Se realizó un ecocardiograma en las primeras 24 horas y seguimiento clínico en la internación. Se estableció un punto combinado de muerte, recurrencia de TEP, shock, hipotensión arterial, asistencia respiratoria mecánica y uso de trombolíticos. Se buscó la asociación entre ambos marcadores y los eventos descriptos. Resultados Se incluyeron 71 pacientes consecutivos. Los pacientes con disfunción moderada o grave del ventrículo derecho presentaron niveles mayores de BNP 661 pg/ml (420-1113) vs. 316 pg/ml (129-570); p = 0,002, sin diferencias en los niveles de TI 0,115 ng/ml (0,015-0,345) vs. 0,24 ng/ml (0,076-0,58); p = 0,0788. Los niveles de BNP fueron mayores en los que presentaron el punto combinado 604 pg/ml (370-934) vs. 316 pg/ml (148-900); p = 0,042, mientras que con la TI no ocurrió lo mismo 0,12 ng/ml (0,037-0,48) vs. 0,13 ng/ml (0,07-0,41); p = 0,46. Conclusiones El BNP tuvo valores más elevados en pacientes con disfunción ventricular significativa y en los que tuvieron el punto combinado. Este hallazgo podría reflejar una mayor utilidad del BNP respecto de la TI para identificar a los pacientes con mayor compromiso clínico.


Prognostic value of brain natriuretic peptide and troponin I in moderate and high risk pulmonary embolism Background Brain natriuretic peptide (BNP) and troponins are useful markers for risk stratification in pulmonary embolism (PE). However, it is not clear which of the two biomarkers has better association with the clinical severity of this condition. Objective The aim of this study was to assess both biomarkers in moderate and high risk PE populations. Methods A prospective study was undertaken to analyze all patients diagnosed with PE who had positive troponin I (TI) or BNP levels. An echocardiogram within the first 24 hours and clinical follow up during hospitalization were performed on these patients. A composite endpoint of death, recurrent PE, shock, hypotension, mechanical ventilation and thrombolytic therapy was established. The association of both serum markers with the described events was assessed. Results Seventy one consecutive patients were included in this study. Patients with moderate or severe right ventricular dysfunction had higher BNP levels (661 pg/ml (420-1113) vs. 316 pg/ ml (129-570) p=0.002) without significant difference in TI levels (0.115 ng/ml (0.015-0.345) vs. 0.24 ng/ml (0.076-0.58) p=0.0788). BNP levels were higher in patients with composite endpoint 604 pg/ml (370-934) vs. 316 pg/ml (148-900) p=0.042, whereas no similar association was found for TI 0.12 ng/ml (0.037-0.48) vs. 0.13 ng/ml (0.07-0.41) p=0.46. Conclusions BNP showed higher values in patients with right ventricular dysfunction and composite endpoint, indicating its greater sensitivity to identify patients with more severe clinical involvement.

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