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Biomedical subjects

P Brosset

Publications and source records attributed to P Brosset.

16 recordsLinked to original sources
PubMed2004

[Slow ventricular tachycardia presenting in the antenatal period].

The authors report two cases of slow ventricular tachycardia presenting in the antenatal period. One foetus had anasarca at 38 weeks' gestation. After birth, improved myocardial function contributed to the rapid resorption of the effusions. The other case was well tolerated in the foetal and neonatal periods. In both cases, Holter ECG recorded an intermittent ventricular arrhythmia with salvos of sustained ventricular tachycardia with a maximum rate of 185/min, only 10% higher than the underlying sinus rhythm, disappearing on acceleration of the sinus rhythm. The aetiological investigation was negative. Therapeutic abstention was supported by the spontaneously favourable outcome after 3 and 5 months. Slow ventricular tachycardia or accelerated idioventricular rhythms are usually considered to be benign but the case with foetal anasarca suggests that they should be carefully followed up in the neonatal period. In the absence of a consensus on management, therapeutic abstention implies regular cardiological examination until the arrhythmia has disappeared.

Female↗
PubMed1997

Identical chromosome imbalance in two siblings born to a mother with a double reciprocal translocation.

We report the case of a woman who carried two reciprocal translocations. Her karyotype was 46,XX,t(3;12)(q12;q21)(4;17)(p14;p13). She had two children, a phenotypically normal daughter (karyotype (46,XX,t(3;12)(q12;q21)) and a son with partial 4p trisomy (karyotype 46,XY,t(3;12) (q12;q21),-17,+maternal der(17)). She was pregnant with a female fetus who had the same karyotype as her son. She also reported a history of two spontaneous abortions. This viable recurrent abnormality was due to the maternal (4;17) translocation with meiotic segregation type 2:2 adjacent 1. In this case of the two reciprocal translocations carried by the mother, one led to imbalances, whereas the other remained balanced in the viable offspring.

Adult↗
PubMed1994

[Concentration of amoxicillin in neonates after infusion to the mother during labor].

Amoxicillin is effective against S. agalactiae (MIC 50 = 0.03 mg/l). Neonatal prophylaxis of GBS infection had already been studied but very few data are available regarding pharmacokinetic of these antibiotics. In this study, 58 pregnant women with GBS colonisation and/or with epidemiologic risk factors received intrapartum antibiotic infusion at the beginning of the labor (1 g amoxicillin every 6 hours until the delivery). At delivery, cord blood and gastric fluid were taken in delay from 0.5 to 6 hours after the beginning of the infusion. Dosages were done in triplicate with a microbiological method using Bacillus subtilis ATCC 6633 as test strain. In cord blood amoxicillin appeared as early as the first half hour. Concentration were from 5 to 7 mg/l between 1 hour and 4 hours after the beginning of the infusion, and from 3 to 4 mg/l after 4 hours. In gastric fluid, concentrations obtained were over 1 mg/l after 1.5 hour and over 3 mg/l after 2.5 hours with good efficiency even after the sixth hour. The protocol using a slow intrapartum amoxicillin infusion (1 g) gave concentrations in gastric fluid and cord blood over S. agalactiae MIC.

Adult↗
PubMed1994

[Maternal motivation for choice of feeding method].

We studied the different motivations mothers had for choosing a particular mode of nursing at the University Hospital in Limoges. An anonymous questionnaire was distributed to all mothers who hat delivered between January 1 and April 30, 1992. It was apparent that the medical team did little to promote breast-feeding or to counteract negative attitudes. The results of this study, together with a review of the literature were used to determine conditions for encouraging breast feeding.

Attitude of Health Personnel↗
PubMed1992

Comparative effects of two topical antiseptics (chlorhexidine vs KMn04) on bacterial skin flora in atopic dermatitis.

In order to determine the efficacy and tolerance of two topical antiseptics, chlorhexidine vs KMn04 (diluted at 1:20,000), we compared their bacteriological and clinical effects in a randomized trial on 20 children with Atopic Dermatitis (AD) treated with topical steroids (desonide). After treatment, a clinical improvement was noted in the two groups, though without statistical differences. In vivo: Before treatment, Staphylococcus aureus (S.A.) density was high and predominant in both groups. After treatment, the decrease in S.A. was greater in the chlorhexidine group than in the KMn04 group, without significant difference. In vitro: At the clinical dilution used, there was a statistical difference (p < 0.05) between the number of killed bacteria in the chlorhexidine group (-3 log) and the number in the KMn04 group (-1 log). This study confirms the role and importance of the choice of a topical antiseptic in the treatment of AD.

Administration, Cutaneous↗
PubMed1989

[Neonatal pneumococcal septicemia].

We report two cases of neonatal pneumococcal septicemia, including one fatal case in a 32-week-gestational-age premature infant. Neonatal pneumococcal septicemias account for less than 1% of all neonatal infections. Diagnosis is provided by simple and rapid methods for identifying pneumococci. Clinical features have little specificity (respiratory distress) and resemble those found in B streptococcus infections. The mother rarely exhibits symptoms at delivery. The severity of the prognosis is not related to resistance to the antimicrobial agents currently used in neonatal infections but to the infectivity of the organism itself and to the specific immunologic characteristics of premature neonates. The current use of amoxicillin and aminoglycosides in neonatal infections does not therefore need to be revised.

Humans↗
PubMed1988

[Metabolic and cardiovascular effects of beta-blockers taken by the mother in newborn infants].

The effects of beta-blockers administered to mothers with arterial hypertension were investigated in 38 neonates of varying gestational age and weight. During the first 48 hours of extra-uterine life, heart rate was continuously monitored and blood pressure and glycaemia were measured every 3 hours. Left ventricular function was studied by echocardiography on the first day post-partum, once again between the 5th and 10th days. Hypoglycaemia was observed in 42% of the neonates; 47% had one or several episodes of bradycardia and 2 had arterial hypotension. Most important, a significant improvement of left ventricular function was observed between the first and the 5th-10th days. This time-related change was not found in a control group. The cardiac dysfunction was more pronounced in neonates who had an episode of bradycardia, and although it is usually asymptomatic, it probably accounts for the fortunately rare cardiovascular collapses observed in some newborn babies.

Adrenergic beta-Antagonists↗
PubMed1986

[Value of continuous Doppler velocimetry for the diagnosis of patent ductus arteriosus].

A study of the curve of wave Doppler ultrasonography of 3 arterial axes (carotid, subclavian and femoral) was performed in 32 children in whom the diagnosis of patent ductus arteriosus was suspected. A continuous 8 MHz wave directional ultrasonic Doppler apparatus was used. At the level of subclavian and femoral arteries, patent ductus arteriosus is associated with a negative holodiastolic wave on the curve. At the carotid level, disappearance of the physiologic diastolic elevation may be the only change observed. Three groups were studied (1) 15 premature neonates with isolated murmur, (2) 15 premature neonates with respiratory distress and (3) 2 older children. In group 2, diagnosis of patent ductus arteriosus relies on clinical signs. A good correlation between Doppler and clinical data and/or TM ultrasonography was observed in 93% of cases.

Child↗