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Biomedical subjects

R Petit

Publications and source records attributed to R Petit.

At least 37 records · Page 2Linked to original sources
PubMed1984

[Urethral instability: diagnosis and clinical significance].

Simultaneous urethrocystometry, the advantages of which are outlined, enabled us to diagnose 27 cases of pure urethral instability (male and female) and 16 cases of mixed instability (urethral and bladder instability). We analysed the relationship between the main symptom, this urethral dysfunction and the competence of the bladder neck. Definition, characteristics and frequency of urethral instability are discussed. It is responsible of: frequency or urgency, in the absence of bladder instability, when the bladder neck is closed, intermittent sphincteric incontinence, in the presence of a normal closure pressure on the urethral pressure profile, when the bladder neck is incompetent, enuresis, particularly in case of stable bladder; a new treatment is proposed for this entity. The clinical interest of this diagnosis is stressed in these three situations.

Adolescent↗
PubMed1983

Effect of aminophylline on brain blood flow in the newborn piglet.

The effect of 6 mg/kg of aminophylline on brain blood flow was examined in newborn piglets. Arterial plasma aminophylline concentration averaged 7 mg/l. Total brain, regional brain (cerebrum, cerebellum and stem) and eye blood flow as well as the total brain oxygen consumption were not altered by aminophylline treatment. Choroid plexus blood flow was five times higher than the total brain blood flow in these newborn piglets. In contrast to brain blood flow, choroid plexus blood flow decreased significantly following aminophylline administration.

Aminophylline↗
PubMed1983

[Prostate hypertrophy. Surgical experience in Belgium. Multi-center study of 1,140 patients of 80 years and older].

An inquiry organized by the Belgian Society of Surgery brought data on the mortality and morbidity of surgery on patients of 80 years and older for benign prostatic hypertrophy in a total number of 1,140 operations. Consensus exist to see this surgery as planned surgery. The mortality was 73 (6.3%) without statistical difference between endoscopic and open surgery. The morbidity of 824 patients was 165. This last figure relates to the big series in the literature. The mortality is in direct relation to the age of the patients. Evaluation of cardio-pulmonary risk (70.8% of the mortality), operation on indication at earlier diagnosis and prospective studies on the risk of operation in this population group are indicated.

Aged↗
PubMed1978

[Fiberscopic transbronchial lung biopsy. Study of 100 cases].

The authors report their experience of 100 transbronchial pulmonary biopsies done during fibroscopy. The technique is easy; patients with respiratory insufficiency or bullous lesions are excluded. Biopsy is done blindly, without any brillance amplifier. A hundred biopsies were performed (34 in limited opacities, 66 in diffuse images). Pulmonary parenchyma was brought out in 77% of cases and a histological diagnosis was made in 52% of cases. Two pneumothorax and 5 minor hemoptysis occured as sequellae of these biopsies. This method of study is interesting mainly for alveolar or interstitial diffuse pneumopathies. In such cases, it represents a real improvement over the bronchial biopsy, often avoiding the need for a surgical biopsy.

Biopsy↗
PubMed1975

[Osteosynthesis of trochantero-diaphyseal and sub-trochanteric fractures. (Apropos of 57 osteosyntheses)].

The authors report 57 cases of osteosynthesis for trochanterodiaphysial and subtrochanteric fractures. They analyse the types of fracture in relation to age, methods of treatment used and the results. They emphasize the poor prognosis after 70 years. They suggest close wound intramedullary nailing whenever possible and osteosynthesis on non-fractured metastasis in order to prevent fracture.

Adolescent↗