Neuro-vascular Diseases - DocNeuro

Conductive aphasia

Naoum P. Issa MD PhD — Mon, 15 Sep 2014 01:12:56 +0000

Conductive aphasia is defined as the inability to repeat a spoken phrase, even when comprehension is intact and speech production is otherwise normal. Conductive aphasia is classically caused by lesions to the arcuate fasciculus (usually on the left). The arcuate fasciculus is a curved bundle of axons that projects from Wernicke’s area to Broca’s area. […]

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Expressive aphasia

Naoum P. Issa MD PhD — Mon, 15 Sep 2014 00:48:33 +0000

Patients with expressive aphasia have difficultly speaking fluently, although they can understand what other people say when they are spoken to. On exam this manifests as: Patients can follow commands (as long as that does not require speaking). Depending on the severity of the aphasia, patients have difficulty producing speech ranging from some word finding […]

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Receptive aphasia

Naoum P. Issa MD PhD — Sun, 14 Sep 2014 19:04:26 +0000

Patients with receptive aphasia can speak clearly (fluently) but cannot understand what others say and have difficulty putting together meaningful sentences. On exam this manifests as: Patients do not follow commands because they cannot understand the command. Some patients have “word salad,” in which speech is produced clearly but consists of a string of non-sensical […]

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Classifying aphasia

Naoum P. Issa MD PhD — Sun, 14 Sep 2014 18:39:49 +0000

Aphasia is defined as a loss of the ability to understand or produce speech, usually caused by damage to the cerebrum. It is important to clinically classify the type of aphasia a patient has, as this helps localize the lesion and has implications for therapy. It is first important to distinguish aphasia from dysarthria. Dysarthria […]

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MCA aneurysm

Christopher Buckle MD — Tue, 15 Jul 2014 14:16:12 +0000

History : 45 year old man with sudden onset of severe headache. What is the most likely etiology for this patient’s intraventricular hemorrhage? A. cavernous malformation B. aneurysm C. hypertensive intracranial hemorrhage D. AVM Answer: MCA Aneursym. The images demonstrate an intensely vascular mass in the right supraclinoid region. The mass appears […]

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Stroke in APLS

Naoum P. Issa MD PhD — Mon, 06 Jan 2014 00:08:45 +0000

Antiphospholipid syndrome (APLS; Hughes Syndrome) produces a hypercoagulable state that can predispose to ischemic strokes as well as other thrombotic events. Diagnosis of APLS Both clinical evidence of thrombosis and the laboratory detection of antiphospholipid antibodies are needed for a diagnosis of APLS. The most common thrombotic events are DVTs, small vessel thromsosis, and ischemic […]

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Recurrent artery of Heubner

Naoum P. Issa MD PhD — Sun, 08 Sep 2013 18:14:55 +0000

The recurrent artery of Heubner is a branch off the proximal A2 or distal A1 segment of the anterior cerebral artery (ACA) and supplies the head of the caudate nucleus, as well as a small part of the internal capsule and putamen. The artery is also sometimes called the medial striate artery or long central artery. Occlusion of […]

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Supplementary Motor Area Aphasia

Naoum P. Issa MD PhD — Tue, 09 Apr 2013 11:52:23 +0000

A form of trans-cortical motor aphasia (TCMA), Supplementary Motor Area aphasia can occur in strokes of the Anterior Cerebral Artery (ACA) on the dominant hemisphere. Most aphasias are the result of infarction of branches of the Middle Cerebral Artery, either affecting Broca’s area (Brodmann’s areas 44 and 45) or Wernicke’s area (Brodmann’s area 22). However aphasia […]

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Stroke, Cerebrovascular Accident, CVA

Jeffrey Waggoner MD — Fri, 15 Mar 2013 21:23:03 +0000

When an area of the brain experiences a sudden loss of blood, the event is called a stroke or cerebrovascular accident. Accompanying this circumstance is a loss of neurologic function. Strokes are broadly classified as either hemorrhagic or ischemic. An acute ischemic stroke refers to strokes caused by thrombosis or embolism and accounts for 85% […]

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Transient Ischemic Attack

Jeffrey Waggoner MD — Fri, 15 Mar 2013 21:03:51 +0000

A transient ischemic attack (TIA) is a transient disruption of blood flow to an area of the brain. The event usually last only a few minutes. TIA symptoms occur suddenly and may be identical to those of a stroke but resolve, with most residuals of a TIA disappearing within an hour although they may persist […]

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