Association between new-onset right bundle branch block and primary or secondary ventricular fibrillation in ST-segment elevation myocardial infarction.

AIMS: New-onset right bundle branch block (RBBB) in myocardial infarction (MI) is often associated with ventricular fibrillation (VF) but the nature of this relationship has not been determined. METHODS AND RESULTS: Between 1998 and 2014, among other data, incidence and duration of RBBB and VF occurrence were prospectively collected in 5301 patients with ST-segment elevation MI (STEMI) admitted to two University Hospitals in Murcia (Spain). Multinomial adjusted logistic regression analyses were used to examine the association between RBBB, attending to its duration, and VF according to its primary VF (PVF) or secondary VF (SVF) character. Among 284 (5.4%) patients with new-onset RBBB, 158 were transient and 126 permanent. VF occurred in 339 (6.4%) patients, 201 PVF and 138 SVF, documented within the first 2 h of symptoms-onset in 78% and 60%, respectively. New-onset RBBB was more frequent in PVF (11.4%) and SVF (20.3%), than in non-VF (4.7%). Transient RBBB incidence was higher in PVF (9.0%) and SVF (9.4) than in non-VF (2.6%), whereas permanent RBBB was higher in SVF (10.9%) than PVF (2.5%) and non-VF (2.1%). New-onset RBBB 1.83 [95% confidence interval (CI): 1.07-3.11] and new-onset transient RBBB 2.39 (95% CI: 1.32-4.32) were independently associated with PVF. New-onset 3.03 (95% CI: 1.83-5.02), transient 2.40 (95% CI: 1.27-4.55), and permanent 2.99 (95% CI: 1.52-5.86) RBBB were independently associated with SVF. CONCLUSION: New-onset RBBB and VF in STEMI are independently associated and show particularities based on the duration of the conduction disturbance and/or the primary or secondary character of the arrhythmia.

[Decisiones de no ingreso en las Unidades de Cuidados Intensivos como medida de limitación de los tratamientos de soporte vital: variabilidad geográfica en España]. / Decisions of refusal intensive Care Units' admission as a measure of limitation of life support treatments: geographical variability in Spain.

From a post hoc analysis of the ADENI-UCI study (multicenter, observational, cohort, prospective study, with a follow-up period of 13 months, in 62 Intensive Medicine Services in Spain. geographical differences in the reason for denial of income in UCI as a LTSV measure are analyzed. A total of 2284 with an average age of 75.25 (12.45) years were included. 59.43% male. By means of multinominal regression adjusted by age, sex, APACHE and SOFA, was evident (by choosing the northern for reference) that age in the south was a less significantly exposed reason (OR: 0.48 (IC95%: 0.35-0.65). p.

Relation of New Permanent Right or Left Bundle Branch Block on Short- and Long-Term Mortality in Acute Myocardial Infarction Bundle Branch Block and Myocardial Infarction.

The aim of this study was to investigate the prognosis associated with bundle branch block (BBB) depending on location, time of appearance, and duration in patients with myocardial infarction (MI). From January 1998 to January 2008, we recruited 5,570 patients with acute MI. Thirty-day and 7-year all-cause mortality, according to BBB location, time of appearance, and duration were analyzed by multivariable analyses. BBB was present in 964 patients (17.3%); right BBB (RBBB) 10.6% and left BBB (LBBB) 6.7%. Overall mortality rate at 30 days was 13.2% (n = 738) and 7 years was 6.34 deaths per 100 patient-year. Both RBBB and LBBB were more frequently previous, 42.9% and 58.8%. Compared with non-BBB, all BBB groups showed higher prevalence of co-morbidities, especially rates of diabetes (49.0% vs 34.3%, p <0.001) and more often heart failure during hospitalization (54.5% vs 26.6%, p <0.001). Compared with RBBB, patients with LBBB had a higher prevalence of co-morbidities and a higher mortality, especially the new BBB, 30 days: 52.5% versus 31.6% and 7 years (incident rate): 27.2 versus 13.3 per 100 patient-year. New transient BBB had lower heart failure on admission (42.6% vs 58.3%, p = 0.008) and 30-day mortality (20.3% vs 69.6%, p <0.001) compared with permanent in both locations. New permanent RBBB was independently associated with 30-day (hazard ratio [HR] 2.01, 95% confidence interval [CI] 1.45 to 2.79) and 7-year mortality (HR 3.12, 95% CI 2.38 to 4.09). New-permanent LBBB was independently associated with 30-day (HR 2.15, 95% CI 1.47 to 3.15) and 7-year mortality (HR 2.91, 95% CI 2.08 to 4.08). In conclusion, in patients with acute MI, the appearance of a new BBB was independently associated with a higher 30-day and 7-year all-cause mortality.

Asociación entre el síndrome coronario agudo y el consumo de antiinflamatorios no esteroideos / Association between acute coronary syndrome and use of non steroidal anti-inflammatory drug

Objetivos: Evaluar el impacto cardiovascular asociado al consumo de antiinflamatorios no esteroideos en un Área de Salud, estimando la asociación entre la prescripción previa de un antiinflamatorio no esteroideo al episodio de síndrome coronario agudo. Material y Métodos: Se realiza un estudio retrospectivo observacional de casos cruzados de 5 años de duración, del 1 de Enero de 2008 hasta el 31 de diciembre de 2012. Los pacientes en primer lugar fueron casos y controles (n=1.317) que tuvieron eventos cardiovasculares y fueron al servicio de Urgencias del Hospital por dicho motivo.Área de Salud de Alcázar de San Juan. Medida principal: Asociación del riesgo de sufrir un síndrome coronario agudo mediante el Odds Ratio con el consumo de antiinflamatorios no esteroideos Resultados: La asociación entre el síndrome coronario agudo y el consumo de Antiinflamatorios fue positiva y significativa, (OR 1,42; IC95% 1,06-1,9). Esta asociación fue de mayor magnitud en pacientes con menor comorbilidad, Charlson ≤ 1 (OR 1,66; IC95% 1,15 - 2,40) frente a los de mayor comorbilidad, Charlson > 1 (OR 1,07; IC95% 0,65 - 1,76). Esta modificación de efecto se debió en parte al consumo concomitante de fármacos que previenen contra patologías cardiovasculares como los antiagregantes, anticoagulantes y estatinas. Conclusiones: El consumo de antiinflamatorios no esteroideos se ha asociado a un mayor riesgo de síndrome coronario agudo, por lo que es necesario realizar un seguimiento a los pacientes que consuman estos fármacos, no debiéndose tomar durante tiempos prolongados ni a dosis altas (AU)

Aims: Evaluate cardiovascular impact related to the use of non steroidal anti-inflammatory drugs in a Health Area, by estimating the connection between the previous medical prescription of non steroidal anti-inflammatory medicines and acute coronary syndrome. Material and Methods: A retrospective observational study of clinical casecrosover during 5 years is done, from 1st of January 2008 to 31st of December 2012. In first place patients were cases and controls (n=1.317) who suffered cardiovascular accidents and went to Emergency Room. Setting: Alcazar de San Juan Health Care Area. Main measurements: Association of the risk of acute coronary syndrome by Odds Ratio with consumption of non anti-inflammatory drug. Results: The connection between acute coronary syndrome and the use of anti-inflammatory drugs was positive and significant (OR 1.42; IC95% 1.06-1.9), which means the probability of suffering a cardiovascular accident increases to 42% in patients taking non steroidal anti-inflammatory drugs. The connection between the prescription of anti-inflammatory drugs and acute coronary syndrome reached a bigger magnitude in patients with less comorbidity, Charlson ≤ 1 (OR 1.66; IC95% 1.15 - 2.40) as opposite to those with more comorbidity, Charlson > 1 (OR 1.07; IC95% 0.65 - 1.76). This change of effect was due, in part, to the concomitant use of medicines which prevent cardiovascular diseases, such as antiaggregant, anticoagulant and statins drugs. Conclusions: The use of non steroidal anti-inflammatory drugs has been connected to a higher risk of cardiovascular accidents; therefore it is necessary to realize follow-up patients who consume these drugs. These drugs must not be consumed for a long time or at high doses (AU)

[Female sex is inversely and independently associated with marked ST-segment elevation. A study in patients with ST-segment elevation acute myocardial infarction and early admission]. / El sexo femenino se asocia de forma inversa e independiente a la marcada elevación del segmento ST. Estudio en pacientes con infarto agudo de miocardio con ST elevado e ingreso precoz.

INTRODUCTION AND OBJECTIVES: In patients with acute myocardial infarction, a number of variables in the initial ECG are useful prognostic indicators. The presence of ST-segment elevation, however, usually indicates the need for reperfusion therapy. The aims of this study were to investigate sex differences in the ECGs of patients with ST-elevation myocardial infarction (STEMI) and to look for a possible association between sex and marked ST-segment elevation. METHODS: A prospective observational longitudinal study of consecutive patients (n=1422) who were admitted early for a first STEMI to one of two coronary units was carried out. Initial ECG parameters were analyzed for sex differences. Multivariate analysis was performed to identify variables associated with marked ST-segment elevation (i.e., total ST-segment elevation >11 mm, according to the upper tertile of the frequency distribution). RESULTS: In women (n=336), Q-wave myocardial infarction was observed more often in the initial ECG (19% versus 15.6%; P< .03), the total ST-segment elevation was lower (10+/-6.6 mm versus 11.1+/-7.9 mm; P< .004), and marked ST-segment elevation was less common (26.4% versus 35.5%; P< .005). There was an independent inverse association between female sex and marked ST-segment elevation (odds ratio=0.70; 95% confidence interval, 0.52-0.96; P< .02). CONCLUSIONS: In patients with STEMI, female sex was associated with a lower total ST-segment elevation and there was an independent inverse association with marked ST-segment elevation.

El sexo femenino se asocia de forma inversa e independiente a la marcada elevación del segmento ST. Estudio en pacientes con infarto agudo de miocardio con ST elevado e ingreso precoz / Female sex is inversely and independently associated with marked ST-segment elevation. A study in patients with ST-segment elevation acute myocardial infarction and early admission

Introducción y objetivos. En el electrocardiograma inicial de los pacientes con infarto agudo de miocardio, diferentes variables tienen valor pronóstico. La elevación del segmento ST, además, es un indicador del tratamiento de reperfusión. Nuestro objetivo es conocer las diferencias electrocardiográficas en relación con el sexo de los pacientes con infarto agudo de miocardio con elevación del segmento ST (IAMEST) y la posible asociación del sexo con una marcada elevación del segmento ST. Métodos. Estudio observacional, longitudinal y prospectivo de los pacientes ingresados consecutivamente en dos unidades coronarias con un primer IAMEST e ingreso precoz (n = 1.422). Las variables del ECG inicial se compararon por sexos. Se realizó un análisis multivariable para conocer las variables con influencia en una marcada elevación del segmento ST (elevación ST > 11 mm, según tercil superior en distribución de frecuencias). Resultados. Las mujeres (n = 336) presentaron más frecuentemente en el ECG inicial onda Q patológica (el 19 frente al 15,6%; p < 0,03), menor elevación total del segmento ST (10 ± 6,6 frente a 11,1 ± 7,9 mm; p < 0,004) y, en menor proporción, marcada elevación del ST (el 26,4 frente al 35,5%; p < 0,005). Entre otras variables, el sexo femenino se asoció de forma inversa e independiente con una marcada elevación del ST (odds ratio = 0,70; intervalo de confianza del 95%, 0,52-0,96; p < 0,02). Conclusiones. En pacientes con IAMEST, el sexo femenino se acompaña de una menor magnitud de elevación del segmento ST y se asocia inversa e independientemente a la marcada elevación del ST (AU)

Introduction and objectives. In patients with acute myocardial infarction, a number of variables in the initial ECG are useful prognostic indicators. The presence of ST-segment elevation, however, usually indicates the need for reperfusion therapy. The aims of this study were to investigate sex differences in the ECGs of patients with ST-elevation myocardial infarction (STEMI) and to look for a possible association between sex and marked ST-segment elevation. Methods. A prospective observational longitudinal study of consecutive patients (n=1422) who were admitted early for a first STEMI to one of two coronary units was carried out. Initial ECG parameters were analyzed for sex differences. Multivariate analysis was performed to identify variables associated with marked ST-segment elevation (i.e., total ST-segment elevation >11 mm, according to the upper tertile of the frequency distribution). Results. In women (n=336), Q-wave myocardial infarction was observed more often in the initial ECG (19% versus 15.6%; P<.03), the total ST-segment elevation was lower (10±6.6 mm versus 11.1±7.9 mm; P<.004), and marked ST-segment elevation was less common (26.4% versus 35.5%; P<.005). There was an independent inverse association between female sex and marked ST-segment elevation (odds ratio=0.70; 95% confidence interval, 0.52-0.96; P<.02). Conclusions. In patients with STEMI, female sex was associated with a lower total ST-segment elevation and there was an independent inverse association with marked ST-segment elevation (AU)