نتایج جستجو برای: myocardial reperfusion
تعداد نتایج: 181323 فیلتر نتایج به سال:
We report an uncommon case of simultaneous cardio-cerebral infarction, due to Inferior – right ventricle ST Segment Elevation Myocardial Infarction (STEMI) with acute ischemic stroke. Incidence cardio cerebral infarction is exceptionally rare, incidence rate as low 0.009%. Hemodynamic compromise in patients myocardial may result the blood flow reduction that cause hemodynamic Due rarity this co...
Severe ischemic injury or infarction of myocardium may cause activation of matrix metalloproteinases (MMPs) and damage the interstitial matrix. However, it is unknown whether MMP activation and matrix damage occur after moderate ischemia and reperfusion that result in myocardial stunning without infarction, and if so whether such changes contribute to postischemic myocardial expansion and contr...
Background: Little is known about the relation between the extent of microvascular damage and infarct size in patients after successful mechanical reperfusion of acute myocardial infarction. Objective: To compare the spatial extent of reduced myocardial signal between real time myocardial contrast echocardiography (MCE) and single photon emission computed tomography (SPECT) after successful mec...
More than 30 years ago, thrombotic occlusion of a coronary artery was identified as the pathophysiological mechanism causing myocardial infarction (1). Mechanical and/or thrombolytic reperfusion has subsequently become the standard of care for patients with ST-segment elevation myocardial infarction (STEMI). However, reperfusion of the epicardial coronary artery does not guarantee reperfusion a...
OBJECTIVES We sought to evaluate the effects of mechanical thrombectomy on myocardial reperfusion during direct angioplasty for acute myocardial infarction (AMI). BACKGROUND Embolization of thrombus and plaque debris may occur during direct angioplasty for AMI. This may lead to distal vessel or side branch occlusion and to obstructions in the microvascular system, resulting in impaired myocar...
OBJECTIVES We sought to assess the relationship between the Thrombolysis In Myocardial Infarction (TIMI) myocardial perfusion (TMP) grade and myocardial salvage as well as the usefulness of TMP grade in comparing two different reperfusion strategies. BACKGROUND The angiographic index of TMP grade correlates with infarct size and mortality after thrombolysis for acute myocardial infarction (AM...
We examined the protective effects of Ginkgo biloba extract (EGb761) postconditioning on myocardial ischemia reperfusion injury in rabbits. Four groups of 8 white rabbits were allocated to: pseudo surgery group: the left coronary was lined without blocking for 160 min after thoracotomy; ischemia and reperfusion group (IR): the left anterior descending coronary artery was blocked for 40 min and ...
BACKGROUND Little is known about the relation between the extent of microvascular damage and infarct size in patients after successful mechanical reperfusion of acute myocardial infarction. OBJECTIVE To compare the spatial extent of reduced myocardial signal between real time myocardial contrast echocardiography (MCE) and single photon emission computed tomography (SPECT) after successful mec...
Epidemiological studies suggest that acute kidney injury has certain effect on myocardial function. In this study, for the first time, we tested a boron compound namely lithium tetraborate an act as anti-oxidant and anti-inflammatory agent in ischemia-reperfusion injury. For this, employed vivo rat model with ischemia reperfusion to evaluate cardiac clarify mechanisms of tetraborate. The evalua...
Background: After acute myocardial infarction, the structural protein T is released considerably longer than cytosolic creatine kinase (CK), CK MB isoenzyme (CK-MB), or lactate dehydrogenase (LDH) and late troponin T release (> 48 hours after onset of chest pain) appears to be less affected by early coronary reperfusion. Objective: To investigate the precision of a single measurement of circula...
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