Publication
Síndrome Coronária Aguda sem elevação do segmento ST: duração do QRS e prognóstico a longo prazo
| dc.contributor.author | Rocha, S | |
| dc.contributor.author | Torres, M | |
| dc.contributor.author | Nabais, S | |
| dc.contributor.author | Gaspar, A | |
| dc.contributor.author | Rebelo, A | |
| dc.contributor.author | Magalhães, S | |
| dc.contributor.author | Salgado, A | |
| dc.contributor.author | Azevedo, P | |
| dc.contributor.author | Pereira, MA | |
| dc.contributor.author | Correia, A | |
| dc.date.accessioned | 2012-02-08T16:04:07Z | |
| dc.date.available | 2012-02-08T16:04:07Z | |
| dc.date.issued | 2009 | |
| dc.description.abstract | BACKGROUND: Recent studies have demonstrated that QRS duration (QRSd) is associated with poor prognosis in heart failure and ST-elevation myocardial infarction. Less is known about the prognostic importance of QRSd in patients with non-ST elevation acute coronary syndrome (non-ST ACS). AIM: To determine if admission QRSd is associated with 1-year mortality in non-ST ACS. METHODS: We studied 539 patients (aged 65.52 +/- 12.47 years, 69.9% male) admitted to the coronary unit with non-ST ACS. QRSd was measured on the admission electrocardiogram. RESULTS: Mean QRSd was 94.29 +/- 18.3 ms. One-year mortality was 13.4%. QRSd showed a good correlation with 1-year mortality and its best cut-off was 92 ms. Patients with QRSd > or = 92 ms were older, more frequently male and with prior history of coronary heart disease. On admission they presented more often in Killip class > 1, and had a higher incidence of heart failure and left ventricular systolic dysfunction. They less often underwent coronary angiography. One-year mortality was higher in patients with QRSd > or = 92 ms. After adjusting for baseline characteristics and treatment, QRSd > or = 92 ms remained an independent predictor of 1-year mortality (adjusted OR=3.87; 95% CI 1.74-8.44). CONCLUSION: In this non-ST ACS population, QRSd was an independent predictor of 1-year mortality after the event. | por |
| dc.identifier.citation | Rev Port Cardiol. 2009 Jun;28(6):697-706. | por |
| dc.identifier.uri | http://hdl.handle.net/10400.23/141 | |
| dc.language.iso | por | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Sociedade Portuguesa de Cardiologia | por |
| dc.subject | Síndrome Coronária Aguda | por |
| dc.subject | Electrocardiografia | por |
| dc.title | Síndrome Coronária Aguda sem elevação do segmento ST: duração do QRS e prognóstico a longo prazo | por |
| dc.title.alternative | Non-ST elevation acute coronary syndrome: QRS duration and long-term prognosis | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |