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Biomedical subjects

M Massin

Publications and source records attributed to M Massin.

At least 19 recordsLinked to original sources
PubMed1992

[Stilling Duane syndrome and MRI: 2 preliminary results].

Dynamic mode magnetic resonance imaging (DMMRI) allows good visualization of the oculomotor muscles and allows their dimensions to be measured both when they contract and when they relax. The accuracy of this method has been checked and the measurements of the cross section of medial and inferior recti and of superior obliques can be considered to be valid. Measurements of length are inaccurate and the other muscles are not perpendicular to the sectional planes generally used in MRI of the head. By means of a fixation scale situated in the tunnel of the machine, the maximum diameter of medial recti in their thickest part was evaluated in two girls affected by a Stilling Duane retraction syndrome of the left eye. Two direction of the gaze were explored: 25 degrees at the right, then 25 degrees at the left, these angles being obtained by the fixation of particular points of the tunnel scale. The measurements have been made on axial sections, then on coronal sections, both medio-orbital and apical. The first finding is that the diseased medial rectus is much bigger than the healthy one. When relaxed, its thickness is about the same as that of the contracted normal muscle. Coronal orbital cross sections clearly show recession of the belly of the diseased muscle towards the back of the orbit. When contracted it stays in the apical plane and when relaxed in the medio-orbital plane. Lastly the relaxation is much weaker for the pathological muscle than for the healthy one.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1989

[A multicenter randomized study of fusidic acid ophthalmic gel and rifamycine eyedrops in acute conjunctivitis].

A total of 163 patients with acute, presumably bacterial, conjunctivitis were included in a randomized trial, comparing: 1% fusidic acid viscous eye drops, a new ophthalmic formulation of fusidic acid instilled twice daily with rifamycin eye drops, four times daily. Both drugs were given 7 days long. Bacterial origin of the conjunctivitis, mainly staphylococcal, was proved in 75% of the cases. Overall, at the end of the treatment, a satisfactory response, on bacteriological and clinical grounds, was recorded for 87.3 and 89.5% of the patients in the Fucidin gel and rifamycin groups respectively. 9 and 12% of the patients in each group respectively, had a clinical recurrence 15 days after the treatment. No significant difference between the groups clinically and bacteriologically was noted. Side effects, mainly burning and smarting were noted by the investigators in 8 and 11 patients treated by fusilic acid and rifamycin respectively. Two patients were taken out of the study in the rifamycin group because of allergy. The difference between the groups is not significant. The use of fusidic acid viscous eye drops as compared to rifamycin eye drops was judged significantly easier by the patients (P less than 0.02), especially because of the reduced number of applications, the lack of color, and the lase of application.

Acute Disease↗
PubMed1985

Nickel allergy: analysis of metal clothing objects and patch testing to metal samples.

In 22 nickel-sensitive subjects, 57 metal clothing objects were said to be not tolerated (37) or tolerated (20). They were analysed by X-ray energy dispersion in electron microscopy, and by the dimethylglyoxime spot test. The correlation between the analytical results and the statements of patients is discussed. Patch tests to nickel-plated metal samples with various thicknesses of chromium (0.25 mu to 1 mu) or gold/copper/cadmium (0.5 mu) were performed in human subjects or in guinea pigs sensitive to nickel. Surface-plating and anticorrosive techniques, as well as the results in nickel-sensitive subjects, are described and discussed. Good tolerance will not be obtained under experimental conditions if nickel in any form is a component of the object. It is to be hoped that appropriate regulations will prohibit the use of nickel in the manufacture of clothing objects.

Adolescent↗
PubMed1985

[Specular microscopy in the diagnosis of the iridocorneal endothelial syndrome].

Irido-corneal endothelial syndrome regroups three disorders including: endotheliopathy, peripheral anterior synechiae and iris changes. According to the aspect of these abnormalities, three syndromes are described: essential iris atrophy, Chandler's syndrome and iris naevus (Cogan-Reese) syndrome. Endothelial changes studied by specular microscopy are typical: in early stages, a rounding off cell angles and intracellular blackout areas can be seen; in former stages, black out areas increase and there is a disruption of the regular mosaic. These features are a major point for differential diagnosis. We present six cases reports among which three where effectively diagnosed as iridocorneal endothelial syndrome and three were not.

Adult↗
PubMed1985

[Anti-inflammatory effect of tiaprofenic acid following ocular surgery].

We evaluated the anti-inflammatory and analgesic action of tiaprofenic acid in the post-operative course of ocular surgery by means of a double-blind study versus placebo in a series of 85 patients. 41 of these patients received tiaprofenic acid and 44 received the placebo. Tiaprofenic acid was administrated at a dose of 600 mg/day according to a peri-operative therapeutic plan (2 days before and 6 days after the operation). The results demonstrate that the anti-inflammatory action of tiaprofenic acid is significantly better than that of the placebo and that it is very rapid, appearing on the day after the operation. The tolerance was very good and identical in the two groups. The use of tiaprofenic acid in ocular surgery results in a significant reduction in the intensity and the duration of the inflammatory reaction.

Anti-Inflammatory Agents, Non-Steroidal↗