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Int. j. cardiovasc. sci. (Impr.) ; 28(5): 409-416, set.-out. 2015. tab, graf
Article in Portuguese | LILACS | ID: lil-786807

ABSTRACT

Fundamentos: Pressão de pulso (PP) corresponde à diferença entre pressão arterial sistólica e diastólica. Na síndrome coronariana aguda (SCA), a PP à admissão relaciona-se potencialmente com o prognóstico. Objetivo: Avaliar o impacto prognóstico da PP na admissão hospitalar por SCA. Métodos: Estudaram-se 8 152 pacientes, incluídos no Registro Nacional Português de SCA, calculando-se a PP àadmissão hospitalar. Criaram-se dois grupos de acordo com um valor cut-off de PP a partir do qual é mais significativa a presença de eventos adversos intra-hospitalares [morte, reinfarto, hemorragia, insuficiência cardíaca(IC)]. Foi então avaliada a ocorrência dos eventos adversos e a gravidade da doença coronariana. Resultados: O valor cut-off foi 50 mmHg. O Grupo 1 (PP ≥50 mmHg) incluiu 5 459 (67,0%) pacientes, sendo significativamente mais velhos (67,0±13,0 anos vs. 63,0±14,0 anos; p<0,001) com mais hipertensão arterial (75,0%vs. 59,4%; p<0,001), diabetes (33,0% vs. 23,1%; p<0,001) e doença multiarterial (56,1% vs. 51,9%. Valores de PP<50 mmHg (Grupo 2) estão associados à maior taxa de eventos adversos – combinado de morte, reinfarto,hemorragia e IC (56,2% vs. 47,0%; p<0,001). PP <50mmHg foi preditor independente de IC (OR 1,3 IC95% 1,1-1,4)e do combinado de eventos (OR 1,2 IC95% 1,1-1,4). Conclusão: Apesar de os valores de PP mais elevados se relacionarem significativamente com pior perfil de risco cardiovascular, valores de PP mais baixos estiveram mais associados a eventos adversos intra-hospitalares.


Background: Pulse pressure (PP) is the difference between the systolic and the diastolic blood pressure. In the acute coronary syndrome (ACS), PP at the admission is potentially related to the prognosis.Objective: Evaluating the PP prognosis impact at the hospital admission due to ACS. Methods: The study featured 8152 patients, included in the Portuguese National Record of ACS, calculating the PP at the hospital admission. Two groups were created under a cut-off PP value from which the presence of intra-hospital adverse events [death,reinfarction, bleeding, heart failure (HF)] is more significant. Then, the occurrence of adverse events and the coronary disease seriousness were evaluated. Results: The cut-off value was 50 mmHg. Group 1 (PP ≥50 mmHg) featured 5459 (67.0%) patients, being significantly older(67.0±13.0 years vs. 63.0±14.0 years; p<0.001) with more hypertension (75.0% vs. 59.4%; p<0.001), diabetes (33.0% vs. 23.1%;p<0.001), and multiarterial disease (56.1% vs. 51.9%). PP values <50 mmHg (Group 2) are related to a higher rate of adverseevents – a combination of death, reinfarction, bleeding and HF (56.2% vs. 47.0%; p<0.001). PP <50 mmHg was independente predictor of HF (OR 1.3 CI95% 1.1-1.4) and of the combination of events (OR 1.2 CI95% 1.1-1.4). Conclusion: Despite higher PP values being significantly related to worst cardiovascular risk profile, lower PP values were more associated to intra-hospital adverse events.


Subject(s)
Humans , Male , Female , Aged , Blood Pressure , Biomarkers/analysis , Prognosis , Acute Coronary Syndrome/complications , Acute Coronary Syndrome/diagnosis , Coronary Artery Disease/complications , Coronary Artery Disease/diagnosis , Echocardiography/methods , Electrocardiography/methods , Myocardial Infarction/complications , Myocardial Infarction/diagnosis , Risk Factors , Stroke Volume
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