microinfarct


Also found in: Medical.

microinfarct

[¦mī·krō′in‚färkt]
(medicine)
A very small infarct.
References in periodicals archive ?
Compared to the sham group, apoptosis was higher in the myocardial microinfarct zone of the HF group (Figure 2).
[19] used the same approach in awake GCaMP6 mice studying mososcopic functional connectivity longitudinally in a microinfarct model.
[17] Placental malaria can produce pathological changes in the placenta, such as thickening of the basement membrane, inflammatory cell infiltrates, villitis and microinfarct owing to clumping of parasitised red blood cells and the occlusion of micro vasculatures.
Or, TIA patients may have suffered a microinfarct undetectable via neuroimaging with computed tomography (CAT) or magnetic resonance imaging (MRI).
The finding of even a single microinfarct in a non-diabetic patient is significant.
Hallmark findings include white matter hyperintensities (WMHs), small infarcts and cerebral microbleeds (CMBs).[sup][5],[6],[7],[8] Recently, High-resolution Magnetic Resonance was used to study the cerebral vessel in arteriosclerosis [sup][9], moyamoaya disease [sup][10] and CADASIL,[sup][11] microbleed and microinfarct detection in amyloid angiopathy,[sup][12] the changes of perivascular spaces and perforating arteries.[sup][13] De Guio et al., [sup][14] have revealed loss of venous integrity in CADASIL patients using 7T-MRI.
DM (b) Males, and/or n % CRF, % No myocardial pathologies 14 36 50 Old MI or fibrosis 7 43 29 Recent MI 11 82 18 Recent microinfarct 10 70 40 Healing MI 6 67 50 CHF 10 40 20 Other myocardial pathologies (d) 8 50 50 Sampled Stored >6 days at 4[degrees]C prior to >72 h, death, % % No myocardial pathologies 14 29 Old MI or fibrosis 29 0 Recent MI 27 36 Recent microinfarct 40 10 Healing MI 33 17 CHF 40 20 Other myocardial pathologies (d) 38 25 No.
Other terms have been suggested that might better describe the clinical importance of this finding, such as "microinfarct" or "infarctlet", or suggest that these patients have suffered a non-Q-wave AMI (63).
Moderate-to-severe white matter rarefaction and arteriolosclerosis occurred frequently (46.6 and 47.2 percent, respectively), while infarcts, microinfarcts, and microbleeds did not.
Though vascular pathologies such as macroinfarcts and microinfarcts are common in older persons with aging, it is suggested that vascular dysfunction may impair the A[beta] clearance of the brain, or vascular pathology may be an additional burden on the brains of patients with AD lowering the threshold for cognitive impairment (4).
(2) From a clinical standpoint, CAA is characterized by individual focal lesions (microbleeds, cortical superficial siderosis, microinfarcts) and large-scale alterations (white matter hyperintensities, structural connectivity, cortical thickness), both cortical and subcortical.