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01-02-2011 | Original Article – E-Learning | Uitgave 2/2011 Open Access

Netherlands Heart Journal 2/2011

Long-term Clinical Outcome and MIBI SPECT Parameters in Percutaneous Coronary Interventions

Tijdschrift:
Netherlands Heart Journal > Uitgave 2/2011
Auteurs:
M. de Mulder, F. M. van der Zant, P. Knaapen, J. H. Cornel, V. A. W. M. Umans
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Abstract

Background and Aim

Primary percutaneous coronary intervention (PCI) is the preferred treatment option for acute myocardial infarction (MI). Off-site PCI reduces time-to-treatment, which could potentially lead to enhanced clinical outcomes. Therefore, we investigated whether off-site PCI improves 5-year clinical outcomes compared with on-site PCI and whether this is related to in-hospital 99mTc-sestamibi single photon emission computed tomography (MIBI SPECT) parameters.

Methods

We describe the 5-year follow-up for a combined endpoint of death or re-infarction in 128 patients with acute MI who were randomly assigned to undergo primary PCI at the off-site centre (n = 68) or to transferral to an on-site centre (n = 60). Three days after PCI, MIBI SPECT was performed to estimate infarct size. A multivariate Cox regression model was created to study the relation between MIBI SPECT parameters and long-term clinical outcomes.

Results

After a mean follow-up of 5.8 ± 1.1 years, 25 events occurred. Off-site PCI significantly reduced door-to-balloon time compared with on-site PCI (94 ± 54 versus 125 ± 59 min, p = 0.003). However, infarct size (17 ± 15 versus 14 ± 12%, p = 0.34) and 5-year death or infarct rate (21% versus 18%, p = 0.75) were comparable between treatment centres. With multivariate analysis, only Killip class ≥2 and Q wave MI, but not scintigraphic data, predicted long-term clinical outcomes.

Conclusion

Off-site PCI reduced door-to-balloon time with a comparable 5-year death or infarct rate. Parameters from resting MIBI SPECT on day 3 after MI did not predict long-term clinical outcomes.

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Netherlands Heart Journal

Het Netherlands Heart Journal wordt uitgegeven in samenwerking met de Nederlandse Vereniging voor Cardiologie en de Nederlandse Hartstichting. Het tijdschrift is Engelstalig en wordt gratis beschikbaa ...

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