http://www.cnr.it/ontology/cnr/individuo/prodotto/ID23474
Coronary blood flow, metabolism and function in dysfunctional viable miocardium before and early after surgical revascularization (Articolo in rivista)
- Type
- Label
- Coronary blood flow, metabolism and function in dysfunctional viable miocardium before and early after surgical revascularization (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1136/hrt.2003.022327 (literal)
- Alternative label
Alamanni F., Parolari A., Repossini A., Doria E., Bortone F., Campolo J., Pepi M., Sisilio E., Naliato M., Biglioli P., Parodi O. (2004)
Coronary blood flow, metabolism and function in dysfunctional viable miocardium before and early after surgical revascularization
in Heart (Lond., 1996)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Alamanni F., Parolari A., Repossini A., Doria E., Bortone F., Campolo J., Pepi M., Sisilio E., Naliato M., Biglioli P., Parodi O. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Centro Cardiologico Monzino, IRCCS, Department of Cardiac Surgery
and Cardiology, University of Milan, Milan, Italy
CNR Clinical Physiology Institute, Section of Milan, Cardiothoracovascular Department, Niguarda Hospital,Milan, Italy
Department of Cardiology, Humanitas Gavazzeni, Bergamo, Italy (literal)
- Titolo
- Coronary blood flow, metabolism and function in dysfunctional viable miocardium before and early after surgical revascularization (literal)
- Abstract
- Objectives: To assess the link between perfusion, metabolism, and function in viable myocardium before
and early after surgical revascularisation.
Design: Myocardial blood flow (MBF, thermodilution technique), metabolism (lactate, glucose, and free
fatty acid extraction and fluxes), and function (transoesophageal echocardiography) were assessed in
patients with critical stenosis of the left anterior descending coronary artery (LAD) before and 30 minutes
after surgical revascularisation.
Setting: Tertiary cardiac centre.
Patients: 23 patients (mean (SEM) age 57 (1.7) years with LAD stenosis: 17 had dysfunctional viable
myocardium in the LAD territory, as shown by thallium-201 rest redistribution and dobutamine stress
echocardiography (group 1), and six had normally contracting myocardium (group 2).
Results: LAD MBF was lower in group 1 than in group 2 (58 (7) v 113 (21) ml/min, p , 0.001) before
revascularisation and improved postoperatively in group 1 (129 (133) ml/min, p , 0.001) but not in
group 2 (105 (20) ml/min, p = 0.26). Group 1 also had functional improvement in the LAD territory at
intraoperative echocardiography (mean regional wall motion score from 2.6 (0.85) to 1.5 (0.98),
p , 0.01). Oxidative metabolism, with lactate and free fatty acid extraction, was found preoperatively
and postoperatively in both groups; however, lactate and free fatty acid uptake increased after
revascularisation only in group 1.
Conclusions: MBF is reduced and oxidative metabolism is preserved at rest in dysfunctional but viable
myocardium. Surgical revascularisation yields immediate perfusion and functional improvement, and
increases the uptake of lactate and free fatty acids. (literal)
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