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Biomedical subjects

R Khalil

Publications and source records attributed to R Khalil.

At least 127 records · Page 7Linked to original sources
PubMedDate not supplied

[Cerebral arterial ischemic complications in young adults. Etiology and prognosis].

The authors investigated 100 patients (55 males and 45 females) aged 16 to 45 years who experienced cerebral ischemic attack, excluding venous thrombosis. Transient ischemic attacks accounted for 12% only. Attacks were related to usual causes of brain ischemia in 49 cases (premature atherosclerosis in 26, cardiopathy in 20 and lacunar stroke in 3). Thirty-eight events were attributed to most uncommon etiologies. Nonatherosclerotic arteriopathies (10 cases) such as spontaneous dissection, dysplasia or megadolichoarteries were easily diagnosed by angiography. Oral contraceptives (14 cases) and migraine (2 cases) were diagnosis of exclusion. Hematological disorders were a possible cause in 10 patients. Etiology remained undetermined in 13 cases. Four patients died acutely. Follow-up data were obtained in 93 survivors with a mean duration of 26 months (range, 6 to 60 months). Four subjects died during follow-up and 6 experienced recurrent stroke (annual recurrence rate: 3%). In activities of daily living, 64% of patients had complete autonomy while 13% had mild residual disability and 23% had severe handicap.

Adolescent↗
PubMedDate not supplied

[Prevention of deep venous thrombosis of the leg by a very low molecular weight heparin fraction (CY 222) in patients with hemiplegia following cerebral infarction: a randomized pilot study (30 patients)].

The effectiveness and safety of a very low molecular weight heparin fraction were evaluated in the prevention of deep-vein thrombosis in patients confined to bed due to hemiplegia consecutive to a recent cerebral infarction. CY 222 was administered within 48 hours of the stroke by one single daily subcutaneous injection of 0.6 ml (= 15,000 U AXa IC) during 14 days. This randomized pilot study involved 30 patients. The effects of CY 222 were assessed in a group of 15 patients compared with a control group of 15 untreated patients. No deep-vein thrombosis was detected by the labelled fibrinogen test in the treated group, as against 12 patients in the control group. Six patients (3 in each group) died during the study. One case of lethal pulmonary embolism was observed and confirmed at autopsy in the control group. In the remaining 5 patients, no systematic autopsy which would have asserted the absence of pulmonary embolism or drug-induced haemorrhage was performed. Numerous standard laboratory tests confirmed that CY 222 was well tolerated.

Aged↗
PubMedDate not supplied

[Neurologic sequelae of the neuroleptics-lithium combination: role of hyperthermia].

The combination of lithium carbonate and neuroleptic is frequently used in the treatment of bipolar disorders. Four patients exhibited permanent neurological sequelae including cerebellar, pyramidal and extra-pyramidal signs after a long-term therapy with this association. Fever, stupor and pulmonary event were initially present. Neuropathological findings in one case only showed selective degeneration of cerebellar Purkinje cells, also noted as a characteristic feature in heat stroke and malignant hyperthermia. Lithium carbonate may be the main factor of neurotoxicity but hyperthermic states are probably involved in determinating brain damage, particularly cerebellar lesions.

Adult↗
PubMedDate not supplied

[Hypoglycemic hemiplegia. Apropos of a case].

An insulin-dependent 26-year-old woman was complaining of nocturnal attacks of transient right hemiplegia. Hypoglycemia was found to be present at the time of each attack, and further investigations showed that these neurological disorders were related to an overdose of insulin. The authors discuss the effects of hypoglycemia on the brain and the pathogenetic theory of "hypoglycemic hemiplegia", involving selective neuronal vulnerability, regional blood flow disturbances or underlying ischaemic disease.

Adult↗
PubMedDate not supplied

Kufs' disease presenting as progressive dementia with late-onset generalized seizures: a clinicopathological and electrophysiological study.

A 32-year-old woman presented with increasing motor difficulties and memory disturbances. Neurological examination only showed mild cerebellar and extrapyramidal symptoms, whereas neuropsychological evaluation disclosed severe cognitive changes consistent with dementia. Her motor and mental status progressively deteriorated until death, which occurred 5 years after the first admission. One year before death, while she was almost bedridden, symptoms of myoclonic epilepsy first appeared, with frequent generalized seizures and generalized myoclonus, occurring especially upon sensory stimulation or passive joint movements. Pathological examination showed neuronal inclusions typical of Kufs' disease. This case, with primary progressive dementia and late-onset myoclonic epilepsy, differs from previously reported cases. Three special electrophysiological features were abnormal, "giant", evoked potentials; unusually marked photosensitivity; and seizure induction by any sensory stimulation.

Adult↗
PubMedDate not supplied

[2 familial cases of Lafora disease. Clinical, electroencephalographic and pathologic study].

Three children born of consanguineous parents had Lafora's disease and two of them had been studied clinically, pathologically and biochemically. The autosomal recessive transmission of the disease is confirmed by the familial study and the parents present no phenotypic anomaly of the disease. Electroclinical data are discussed with regard to the early differential diagnosis between this entity and idiopathic generalised epilepsy and myoclonic epilepsy without Lafora's bodies. Iodine spectrum of the cerebral and hepatic abnormal deposits suggest that Lafora's bodies mainly consist of long chains glycogen similar to amylopectin.

Brain↗
PubMedDate not supplied

[Analysis of 228 cases of multiple sclerosis (author's transl)].

The authors report some observations about 228 cases of multiple sclerosis with secure diagnosis subdivided in severe (34,6 %), common (29,8 %) and benign after the tenth year of illness (35,6 %). These observations are in agreement with classical statistic reports concerning the natural disease history : higher female incidence (64 %), average age at onset about 29,5 years, 4 main first signs (ocular [42,5 %], motor [41,5 %], ataxia [36,3 %], sensory [35 %] and remitting course [82,5 %]). Follow up study of 81 "benign" forms after the tenth year of the disease allows us to look at the freqwuency of "secondarily worsening" forms (25,7 %) and "benign remaining" ones until the twentieth year (10,1 %).

Adult↗
PubMedDate not supplied

[Bilateral carotid artery occlusion. Analysis of 9 cases].

The authors report on a series of 9 cases of bilateral internal carotid artery occlusion with long-term follow-up. Risk factors, clinical presentation and outcome have been reviewed. On basis of angiographic and CT scan features, the role of collateral circulation is discussed.

Aged↗