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Biomedical subjects

B Dalens

Publications and source records attributed to B Dalens.

At least 55 records · Page 3Linked to original sources
PubMed1987

A new parascalene approach to the brachial plexus in children: comparison with the supraclavicular approach.

A technique for blocking the brachial plexus was designed after reevaluation of the gross anatomy of the neck in children. It consists of penetrating the perineural sheath at the level of the omohyoid muscle using a strictly anterior-posterior direction for insertion of the needle. This procedure was prospectively evaluated in 60 children (group P) and compared with classical supraclavicular approach in 60 similar patients (group S). Insulated needles and a nerve stimulator were used with both techniques. Although both techniques produced a high degree of sensory blockade in almost all infraclavicular branches of the brachial plexus, the parascalene approach proved to be easier and more reliable while also being almost free of complications.

Adolescent↗
PubMed1984

Flexible bronchoscopy in infants and children.

The authors describe the use of flexible bronchoscope in infants and children ranging in age from 20 hours to 17 years and in weight from 1.5 kg upwards. Bronchoscopy was carried out under local (17 cases) and general anesthesia (95 cases). Seventeen-six of the 95 examinations under general anesthesia were conducted using the jet-ventilation technique. The advantages and drawbacks of this technique are discussed. The authors list the indications which they regard as favoring the flexible tube rather than the rigid one, and emphasize the complementary nature of these 2 techniques in pediatrics.

Adolescent↗
PubMed1984

[Ventilation using jet-ventilation during fiber-optic bronchoscopy in children under 5 years old. Apropos of 100 case reports].

The authors report an original procedure for respiratory assistance during flexible bronchoscopy in infants and toddlers. The injector is directly connected with the operating channel of the bronchoscope. Ventilation parameters are pre-regulated before introducing the fiberscope into the respiratory tree. Insufflation volumes are restricted to 5 ml/kg at the tip of the bronchoscope, on a basis of 40 to 60 cycles per minute, according to children's age. A venturi effect may occur as discrepancy between bronchi and the size of the fiberscope does exist. For evaluating this effect, gas flow is measured through tracheal tubes selected in accordance to the size of the respiratory tree of the infant. This evaluation demonstrates that tidal volumes are comprised within 5 and 10 ml/kg. The procedure of jet-ventilation was performed on 100 infants under general anaesthesia with curarization. Baro-traumatic accidents did not occur, despite poor physical conditions in many cases. The procedure was safe for the infants and convenient for the physicians. In this way, it could be recommended for flexible bronchoscopy in infants and toddlers with poor condition or when excessive duration of the examination could be required (diagnostic or therapeutic procedures associated).

Anesthesia, General↗
PubMed1984

[Outcome of nonsurgically treated pseudoappendicular syndromes in children. Retrospective study of 479 cases].

A retrospective study was conducted to assess outcome in 479 children admitted to a surgical pediatric department with pseudo-appendicular syndromes untreated by surgery. A precise diagnosis had been made during the first admission in 186 cases. At a later date, each child had been examined clinically and a detailed history taken, or a questionnaire was sent to the families or treating physician. Replies were received concerning 263 children, including 205 who had had no further episode of abdominal pain, 24 who had had similar atypical bouts of abdominal pain and 34 who had been operated upon at a later date (representing 12.9% of replies). These findings would appear to justify avoidance of surgery, after admission for observation, whenever the atypical symptomatology, negative results of paraclinical investigations and the progression towards total remission of the affection is observed.

Abdomen↗
PubMed1983

Diagnostic and prognostic value of fibrin stabilising factor in Schönlein-Henoch syndrome.

Fibrin stabilising factor (FSF) was studied in the circulating blood of 196 children. These 196 children comprised three groups: 131 controls (group A), 20 children with diseases of potential repercussion on FSF determination (group B), and 45 children with Schönlein-Henoch syndrome (group C). Determinations from groups A and B produced normal values, but results from group C were significantly lower at the onset of the vasculitis. Seventeen children with Schönlein-Henoch syndrome have had complications, in 7 of whom these were severe. The decrease in FSF levels was correlated with the severity of such complications, and an increase in FSF was associated with recovery. Determination of FSF activity appears to help in the diagnosis of Schönlein-Henoch vasculitis, as well as helping to monitor the course of the disease and assessing the risks of complications.

Child↗
PubMed1983

[Value of herniography in the therapeutic management of inguinal hernias in young girls. Apropos of 148 cases].

The authors report a study on 148 female children demonstrating clinical evidence for inguinal hernias. The diagnosis was evaluated using Ducharme-Bensoussan's procedure for herniography hernia was documented in 143 cases, so which 44% revealed genital tract content. Eight cases produces unrelated pathological findings, especially crural hernia, nephro-uropathy diaphragmatic hernia. However, the main interest of the procedure is in evaluating the controlateral inguinal canal. Whereas three infants presented with bilateral symptoms, bilateral hernia was proven in 66 cases (46,2%) by herniography. In this way, the procedure is a sure way to ensure that hernia is really unilateral and to prevent any controlateral recur in the coming months.

Child↗
PubMed1982

Evaluation of infectious episodes in neonates using a new procedure for the nitroblue tetrazolium test.

A new procedure for the NBT slide test for peripheral blood neutrophils has been tested. 255 neonates were studied of which 63 served as control cases. Among the 114 term infants, 37 were patently infected, 30 suspicious and 47 non-infected. The latter did not significantly differ from control cases, whereas suspicious and infected infants were credited with significantly higher NBT scores. 78 infants were preterm, 31 of which were patently infected, 22 suspicious and 25 non-infected. NBT scores of infected and suspicious infants were significantly higher than those of non-infected infants, but, as previously reported, scores of preterm infants were systematically and significantly lower than those of full-term infants of the same bacteriological class. Threshold values are suggested; they could represent an accurate diagnostic aid in the early differentiation of healthy infants from high-risk infants regarding bacterial infections.

Bacterial Infections↗