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Biomedical subjects

C Popa

Publications and source records attributed to C Popa.

At least 19 recordsLinked to original sources

Two cases of choreatic syndrome caused by polycythemia vera.

Two patients with choreatic syndromes caused by polycythemia vera recovered after treatment of the polycythemia by only two venesections: this proves that the syndrome is due to reversible alterations. Investigations of the cerebral circulation in one of the patients showed that blood flow was lowest in the grey matter at the basal region of the brain: this suggests that the alterations might mainly occur there. However, investigation of erythrocyte rheology, glucose-6-phosphate dehydrogenase, serum concentrations of caeruloplasmin and serotonin, and urinary excretion of epinephrine, norepinephrine and vanillylmandelic acid gave normal results in both patients. There are therefore no indications as to the possible pathophysiology of these alterations. There are now 24 cases reported, including our 2 patients, which suggests that the association of these two diseases may not be so rare as supposed.

Adult

[Characteristics of the course of the last epidemic of epidemic cerebrospinal meningitis (ECSM) in the city of Bucharest].

Active survey of the epidemiologic potential of cerebrospinal meningitis, in Bucharest, starting in 1967, made it possible to carry out a complex study of the last epidemic wave in 1968-1972. Details are given concerning the results of the complex epidemiologic, clinical and laboratory investigations, which revealed the particularities of this epidemic episode, including the frequency and gravity of the cases, territorial distribution, prevalent affection of certain age groups and children's communities, the prevalence of certain clinical forms, antigenic structure of the pathogenic agent and its sensitivity to antibiotics, comparative efficiency of the different methods of laboratory diagnosis, real and apparent contagiousness, etc. The authors discuss the efficiency of present methods applied in the prevention and control of meningococcal infections in general and of epidemic cerebrospinal meningitis in particular.

Adolescent

Recurrent cranial polyneuropathy.

General considerations on recurrent cranial polyneuropathy are made. In addition, a study carried out in 42 patients with recurrent cranial polyneuropathy (RCP) permitted the assessment of some parameters closely related to age, sex and evolution in order to elaborate an etiopathologic hypothesis. Female cases prevailed (31 females, 11 males); the interval between two episodes varied from 1 month to 39 years. 117 episodes were found (from 2 to 8 episodes in one patient). Immune, vascular and entrapment aspects are discussed.

Adolescent

Calcium blockers in ischemic stroke.

The study investigated the evolution of 72-nifedipine treated cases with ischemic stroke. Dipyridamole was administered to 72 controls. Subjects showed clinical improvement, thus calcium blockers can constitute a therapy alternative. A good influence of nifedipine was remarked in blood pressure.

Adult

Neurotrophic trigeminal syndrome after pontine stroke.

The present study describes a patient, aged 72 yrs, with pontine crossed syndrome, displaying ipsilateral to the lesion a syndrome of cranial nerves V, VI, VII, VIII, on the right; a right neocerebellar syndrome; anhidrosis in the right hemibody; contralateral to the lesion: thermoalgic anesthesia with hyperhidrosis in the left hemibody. Concomitant with the pontine lesion, the patient developed torpid trophic ulcerations all over the right hemiface which, in the course of one year, became deformed, retractile, depigmented of hyperpigmented scars, the erosion being so deep at the level of the right nasal wing that the latter disappeared. This clinical picture developed in a patient with basilar invagination of 3 mm and left humeral micromelia. Eight cases of trigeminal torpid trophic ulceration associated with lesions of the brain stem are known till now, but association with vascular pontine lesion has not been described as yet. Etiopathogenic considerations are made.

Aged

Particular neurological aspects in vascular autoimmune diseases. I. Rheumatoid purpura, Stevens-Johnson syndrome, rheumatoid arthritis and systemic lupus erythematosus.

This study presents particular clinical manifestations in 7 patients with autoiMmune diseases: rheumatoid purpura with right crural nerve paresis (1 case), Stevens-Johnson syndrome with encephalomyeloradicular syndrome (1 case) and left Wallenberg syndrome (1 case), rheumatoid arthritis with right parieto-occipital syndrome (1 case) and Gowers local panatrophy (1 case), systemic lupus erythematosus with confusional state and meningeal syndrome (1 case) and left ictal hemiplegia (1 case). The importance of neurological clinical manifestations at the onset or during the evolution of the autoimmune diseases is emphasized.

Adult

Haemodilution therapy in acute ischaemic stroke.

The effect of hemodilution was studied in 106 acute ischaemic stroke patients (55 hemodiluted and 51 control subjects). The investigation did not show statistically significant differences between the two groups regarding the mortality rate and the degree of rehabilitation (modified Rankin Scale) but revealed a significant neurologic score (proposed by the Scandinavian Stroke Study Group) in the hemodiluted group. A correlation between the favourable score modification and the degree of hematocrit modification was also observed.

Acute Disease