Biomedical subjects

M W Chee

Publications and source records attributed to M W Chee.

21 records · Page 2Linked to original sources

PubMed1993

Computed tomography in patients with recurrent seizures.

Eighty patients had Computed Tomography (CT) performed for evaluation of epileptic seizures. Abnormal scans were found in 37 of the 80 patients (46.3%). Focal CT abnormalities were seen in 26 of the 80 patients (32.5%). Tumors were present in four and arteriovenous malformation (AVM) in three. Simple partial motor seizures were most strongly correlated with abnormal scans (five, 45.4%). Nineteen out of 21 patients with focal electro-encephalographic (EEG) abnormalities had focal CT abnormality compared to one out of 15 of those with generalised abnormality. 88.9% of patients with hemiplegia had abnormal scans. Whilst focal EEG abnormalities and abnormal neurologic signs pointed to a higher likelihood of CT abnormality, two subjects who were shown to have vascular malformations had normal EEG and neurologic exams. Routine CT scanning for evaluation of patients with recurrent seizures is advocated.

Adolescent↗

PubMed1990

Nuclear third nerve palsy and somnolence due to stroke--a case report.

We describe a 40 year-old male with a ball-cage mitral valve prosthesis who suddenly developed bilateral ptosis, bilateral dilated and unreactive pupils, right third nerve palsy, bilateral failure of vertical gaze, somnolence and mild ataxia without major motor deficits. Computed Tomography (CT) revealed bilateral thalamic infarcts in the distribution of the rostral basilar artery. Infarction in this case occurred despite adequate anticoagulation. The recognition of the entity of rostral basilar artery occlusion is important as interruption of anticoagulation may be avoided.

Adult↗

PubMed1990

Persistent mutism and dysphagia of acute onset due to bilateral internal capsule infarction.

Acute mutism with paralysis of the bulbar and facial muscles following discrete bilateral internal capsular infarction is a rare stroke syndrome. We describe a 62 year-old male who suddenly became unable to speak or swallow. The paucity of facial expression and inability to voluntarily move the facial, lingual and pharyngeal muscles were persistent and contrasted with a relatively mild limb paresis which recovered. High resolution CT scan revealed infarcts in the posterior limbs of both internal capsules. It is important to recognise this stroke syndrome because of the permanence of dysarthria and dysphagia associated with it.

Bulbar Palsy, Progressive↗