microaneurysm


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microaneurysm

 [mi″kro-an´u-rizm]
a minute aneurysm occurring on a vessel of small size, or such as occurs in thrombotic purpura.

mi·cro·an·eu·rysm

(mī'krō-an'yū-rizm),
Focal dilation of retinal capillaries occurring in diabetes mellitus, retinal vein obstruction, and absolute glaucoma, or of arteriolocapillary junctions in many organs in thrombotic thrombocytopenic purpura.

microaneurysm

A minute aneurysmal dilation of arteries, arterioles or capillaries, which is classically seen in the retina of patients with long-standing diabetes and often associated with oedema and haemorrhage. Microaneurysms occur elsewhere in diabetes, as well as in other conditions (e.g., thrombotic thrombocytopenic purpura).

microaneurysm

A teensy-weensy aneurysmal dilation of small arteries, arterioles, or capillaries 'classically' seen in the retina of Pts with long-standing DM, often associated with edema and hemorrhage; MAs occur elsewhere in DM, and in other conditions–eg, thrombotic thrombocytopenic purpura. See Cherry-red spot.

mi·cro·an·eu·rysm

(mī-krō-an'yūr-izm)
Focal dilation of retinal capillaries occurring in diabetes mellitus, retinal vein obstruction, and absolute glaucoma, or of arteriolocapillary junctions in many organs in thrombotic thrombocytopenic purpura.

microaneurysm

Tiny swelling in the wall of a blood vessel. It appears in the retinal capillaries as a small, round, red spot. It is commonly found in diabetic retinopathy, retinal vein occlusion or absolute glaucoma.
References in periodicals archive ?
Lian) such as author, year of publication and country, sample size, age, sex, intervention (components of intervention), intervention details, dose, treatment duration, changes in microaneurysms, hemorrhage, exudate, visual acuity, and FFA.
PD duration predicted lens condition, overall fundus photo clinical opinion, retinal hemorrhage or microaneurysm in inferior/superior nasal fields, RPE hyperpigmentation in the macula-centered field, and rod-cone mixed response implicit time b-wave.
Retinal microvascular abnormalities like microaneurysm, arteriovenous nicking, haemorrhages, and vessel caliber are considered as associative to the stroke and indicative of death from stroke and IHD (Ischemic Heart Diseases) [1].
Nonproliferative DR showed one or more of the following symptoms: microaneurysm, hemorrhage, exudates, or microvascular abnormalities; proliferative DR showed the generation of new vessels and fibrosis.
Analysis of 400 randomly selected focal spots showed that Navilas hit 92% of microaneurysm targets, while analysis of 100 focal spots from the control group showed an accuracy rate of 72%.
Then, the left renal pedicle was clamped by the microaneurysm clamp.
The RPE is located in the outer layer and microaneurysm is in the inner layer, and the laser beam that is delivered obliquely from the inner and central side arrives relatively peripheral to the outer layer.
In amyloid angiopathy there is deposition of amyloid- [beta] in the capillary wall, which also results in microaneurysm formation, concentric splitting, chronic inflammatory infiltrates and fibrinoid necrosis.
The Mongolian gerbils were anaesthetized by diethyl ether and placed in the dorsal position.The neck area was shaved, and then both common carotid arteries were exposed carefully by blunt dissection and clamped for 10 min with microaneurysm clips.
Chan et al., "Characterization of microaneurysm closure after focal laser photocoagulation in diabetic macular edema," American Journal of Ophthalmology, vol.
Hajdu, "An ensemble-based system for microaneurysm detection and diabetic retinopathy grading," IEEE Transactions on Biomedical Engineering, vol.
Failure of endothelial cells to recruit pericytes results in mechanical instability, eventually leading to microaneurysm [35] and embryonic lethality [36].