TY - JOUR
T1 - Analysis of the diastolic function by myocardial perfusion gated SPECT after coronary revascularization in acute myocardial infarction
AU - Aguadé-Bruix, S.
AU - Candell-Riera, J.
AU - García-Dorado, D.
AU - Castell-Conesa, J.
AU - Romero-Farina, G.
AU - De León, G.
AU - Pizzi, M. N.
AU - Cuberas-Borrós, G.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - Objective: To evaluate the evolutive changes in diastolic function after percutaneous coronary revascularization (PCR) in acute myocardial infarction (AMI), using myocardial perfusion gated SPECT. Material and methods: Thirty-two patients (mean 61.9±9.7 years, 7 women) were studied by two at rest gated SPECT: the first gated-SPECT-1 was performed with an injection of a dose of 99mTc-tetrofosmin prior to PCR and the second gated-SPECT-2 between the fourth and fifth weeks after AMI. Changes of peak filling rate (PFR) and the time to peak filling rate (TTPF) were assessed between both studies, and were related to the extent of salvaged myocardium (SM), end-diastolic (EDV) and end-systolic (ESV) volumes, and left ventricular ejection fraction (LVEF) changes. Results: An improvement was observed in diastolic function parameters Gated-SPECT-2: PFR increased significantly (P=0.011) while the TTPF decreased without reaching statistical significance (P=0.288). In multivariate analysis, adjusted by clinical and coronary variables, improvement of PFR was significantly associated with percentage of SM (P=0.030), increase in LVEF (P=0.004) and with ESV volume reduction (P=0.005). Improvement of TTPF was only related significantly to the percentage of SM (P=0.046). PFR increased 0.01 EDV/sec. and TTPF decreased 1.14ms for each cm2 increase of the area of SM. Conclusions: After PCR in AMI, the myocardial perfusion gated SPECT makes it possible to assess the significant improvement in diastolic function mainly related to the amount of MS. © 2012 Elsevier España, S.L. and SEMNIM.
AB - Objective: To evaluate the evolutive changes in diastolic function after percutaneous coronary revascularization (PCR) in acute myocardial infarction (AMI), using myocardial perfusion gated SPECT. Material and methods: Thirty-two patients (mean 61.9±9.7 years, 7 women) were studied by two at rest gated SPECT: the first gated-SPECT-1 was performed with an injection of a dose of 99mTc-tetrofosmin prior to PCR and the second gated-SPECT-2 between the fourth and fifth weeks after AMI. Changes of peak filling rate (PFR) and the time to peak filling rate (TTPF) were assessed between both studies, and were related to the extent of salvaged myocardium (SM), end-diastolic (EDV) and end-systolic (ESV) volumes, and left ventricular ejection fraction (LVEF) changes. Results: An improvement was observed in diastolic function parameters Gated-SPECT-2: PFR increased significantly (P=0.011) while the TTPF decreased without reaching statistical significance (P=0.288). In multivariate analysis, adjusted by clinical and coronary variables, improvement of PFR was significantly associated with percentage of SM (P=0.030), increase in LVEF (P=0.004) and with ESV volume reduction (P=0.005). Improvement of TTPF was only related significantly to the percentage of SM (P=0.046). PFR increased 0.01 EDV/sec. and TTPF decreased 1.14ms for each cm2 increase of the area of SM. Conclusions: After PCR in AMI, the myocardial perfusion gated SPECT makes it possible to assess the significant improvement in diastolic function mainly related to the amount of MS. © 2012 Elsevier España, S.L. and SEMNIM.
KW - Diastolic function
KW - Coronary revascularization
KW - Acute myocardial infarction
KW - Gated-SPECT
UR - https://dialnet.unirioja.es/servlet/articulo?codigo=6024026
U2 - 10.1016/j.remn.2012.04.003
DO - 10.1016/j.remn.2012.04.003
M3 - Article
SN - 2253-654X
VL - 32
SP - 8
EP - 12
JO - Revista Espanola de Medicina Nuclear e Imagen Molecular
JF - Revista Espanola de Medicina Nuclear e Imagen Molecular
IS - 1
ER -