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Biomedical subjects

G Dumitrescu

Publications and source records attributed to G Dumitrescu.

At least 19 recordsLinked to original sources

[Clinical imaging correlations in lacunar infarcts].

PURPOSE: This paper is a study concerning the clinical-imagistic correlations in lacunar infarcts causes and associated lesions in these ones. We made an attempt to find out and emphasize the risk factors, causes and pathogenic mechanisms involved in lacunar syndromes. MATERIALS AND METHODS: We studied 138 patients with lacunar infarcts diagnosed by clinical examination and computer tomography. The investigation of risk factors evidenced arterial hypertension in 75 cases (54%). The clinical features of lacunar syndromes were: 1) pure motor stroke 41c; 2) pure sensory stroke 8c; 3) ataxic hemiparesis 9c; 4) dysarthria-clumsy hand 1c; 5) sensorimotor stroke 21c; 6) Landry syndrome 1c. RESULTS: We correlated the clinical manifestations and complementary investigations what enabled us to charge in determining of lacunar infarcts: focal microangiopathy-small artery disease (75c), cardio-embolic mechanism (12c), arterio-arteriolar embolic mechanism (15c). The risk factors and pathogenic mechanisms need more adequate research in order to find appropriate prevention and medical attendance.

Adult↗

[Association between phakomatosis and neoplasia in children pathology. IV Pediatric Clinic experience].

The risk to developing a neoplasm is increased when associated to a patient phakomatosis (Recklinghausen neurofibromatosis, Bourneville's tuberous sclerosis). We analysed 6 cases with phakomatosis and tumours, admitted in the Department of Oncopediatry, between 1993-1998; five of these children had neurofibromatosis and one Bourneville's disease. The associated tumours were hematologic malignancies (juvenile myeloid chronic leukemia) and solid tumors (rhabdomyosarcoma, hepatic carcinoma, CNS tumour, NHL optic glioma). The diagnosis was confirmed by microscopic examination of the bioptic material in all cases. Tumoral staging was performed by clinics, biology and imagistic investigations. All cases had extensive and aggressive tumours at the moment of diagnosis, We noticed a poor response and an early relapse after chemotherapy. A special follow-up and a different management has to be established for the patients with phakomatosis, in order to have a good oncological prophylaxis.

Adolescent↗

Effect of the oral administration of NIVGRIP inactivated influenza vaccine on virus carriage in the nasopharynx of children aged 0-5 years.

The NIVGRIP inactivated influenza vaccine was administered by oral route to 11 children of a semi-closed pre-school community, found to carry viruses in their nasopharynx. Periodic virological investigations demonstrated that after vaccination virus carriage disappeared completely in 7 children; in the remaining 4 cases there was a considerable decrease (from 14 to 6) in the number of virus strains isolated. The virus isolates obtained after vaccination were represented exclusively by enteroviruses (Coxsackie B1 and B3, poliovirus type 1), in contrast with the wider range of viral agents (adeno-, parainfluenza, herpes, Coxsackie, and polioviruses) detected prior to vaccine administration.

Administration, Oral↗

Primary hyperparathyroidism. Report of a clinical case without bone lesions.

A 26-year-old woman was admitted to the Institute of Endocrinology in Bucharest for evaluation of primary hyperparathyroidism (P-HPT). Anamnesis revealed a 10-year history of nephrolithiasis; peptic ulcer, chronic pancreatitis, cholelithiasis. Eight months previously, she had given birth to a child who had neonatal hypocalcaemic tetany. Investigations revealed the presence of moderate hypercalcaemia, hypercalciuria, hypo-phosphoremia; serum chloride level was above 100 mEq/1, and the chloride phosphate ratio was greater than 33. X-ray films of the abdomen revealed the presence of nephrolithiasis and right nephrocalcinosis. Selenium methyonine scanning, ultrasonography and computerized tomography were negative. On surgical exploration a 2-3 cm parathyroid adenoma was removed from between the trachea and the esophagus.

Adult↗