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Biomedical subjects

M Thiery

Publications and source records attributed to M Thiery.

At least 91 records · Page 5Linked to original sources
PubMed1987

Increased monozygotic twinning rate after ovulation induction.

Multiple births after artificial induction of ovulation (AIO) are usually considered to be due to fertilisation of multiple ova. In the East Flanders Prospective Twin Study between 1978 and 1985 the frequency of zygotic splitting after AIO (1.2%) was significantly higher than the expected frequency (0.45%) among spontaneous twins and triplets. Moreover, after AIO the frequency of zygotic division was significantly higher in triplets than in twins. AIO seems to be the first identified biological mechanism influencing the monozygotic twinning rate.

Female↗
PubMed1987

The Ombrelle-380 IUD: a pilot study.

The initial results of a pilot trial (314 insertions and 3784 woman-months of experience at 18 months) suggest the low expulsion rate (0.0) and high clinical effectiveness (pregnancy rate 0.0) of the Ombrelle-380, a new high-load copper-releasing IUD of French origin.

Female↗
PubMed1987

The Dimélys IUD.

The Dimélys is a new lily-shaped copper-bearing IUD of French origin of which the first clinical results are reported here. This device was inserted at interval in 348 women and 8975 woman-months of experience were accumulated at 3 years. Though only moderately effective (pregnancy rates 2.8 and 5.7 at 1 and 3 years, respectively) the Dimélys is well retained by the uterus (expulsion rates 1.5 and 2.5 at 1 and 3 years, respectively). Clinical efficacy was found to be influenced by the recipient's age, and expulsion rates were significantly higher when inserted by unskilled operators.

Adult↗
PubMed1987

Immediate postpartum insertion: performance of the Nova-T-PP and randomized comparison with the Nova-T.

Clinical evaluation of the Postpartum Nova-T or Nova-T-PP (a Nova-T IUD adapted for postpartum insertion) was based on 412 insertions and showed that this model--besides being effective and safe--had a low expulsion rate (7.2% at 1 year). To prove that the Nova-T-PP's low expulsion rate is indeed the result of its special design, a randomized trial was conducted to compare the Nova-T-PP with the parent model (Nova-T) when inserted within 10 minutes of delivery of the placenta. The result of this study (408 insertions, 203 of them Nova-T) indicate that there is no significant difference in expulsion rate between the two IUD models, suggesting that the addition of two extra arms to the original Nova-T model does not improve the retention of the adapted IUD model.

Adult↗
PubMed1987

Long-term release of copper from two multiload IUD models: MLCu250 and MLCu375.

Decrease of mean copper content was assessed for two commercial types of Multiload IUD with different copper loads. Mean daily loss of copper amounted to about 18 mcg and 30 mcg for MLCu250 and MLCu375 devices, respectively. On the basis of these estimates, we conclude that both these IUD models can be considered long-lasting interceptive agents.

Copper↗
PubMed1987

Histologic and microbiologic findings in the fallopian tubes of IUD users.

Non-microbial inflammatory changes are more frequent in the oviducts of IUD users than in those of former users and never users. No correlation was found between the incidence of non-microbial tubal inflammation and the interval between IUD use and tubal sterilization, pelvic inflammation and surgery, and parity. Inflammatory response was more common among women using copper devices than among those wearing a non-copper IUD.

Fallopian Tubes↗
PubMed1987

Ovarian actinomycosis during first-trimester pregnancy.

A case of actinomycotic ovarian abscess ruptured during early gestation and related to IUD use is reported. The patient was treated by antibiotic therapy and oophorectomy. Further evolution of the pregnancy was irrelevant.

Abscess↗
PubMed1987

Diabetes insipidus and pregnancy.

A case of a pregnant woman with diabetes insipidus is reported. The course of the pregnancy was uneventful except for a slightly increased need for vasopressin during the last trimester. Neurophysin levels increased at a rate similar to that seen in the normal pregnant state. The combination of normal neurophysin physiology and undisturbed spontaneous labor demonstrating normal oxytocin secretion suggests that there is a singular deficiency of antidiuretic hormone in essential diabetes insipidus.

Adult↗
PubMed1987

The multisleeved copper T model TCu220C: effect of long-term use on corrosion and dissolution of copper.

Corrosion and dissolution of copper were studied in 136 multisleeved TCu220C models used for up to 158 months. Surface alterations were examined at low magnification. Topography and depth of copper corrosion were evaluated microscopically in cross-sections of the TCu220C devices. Amounts of residual copper were determined by X-ray fluorescence spectrometry. Sleeve and wire corrosion differ in two respects: edge corrosion is typical for tubular copper and the corrosion process is more pronounced in the upper part of multisleeved devices. Despite considerable individual variation, maximum corrosion depth in relation to duration of IUD use is topographically similar for copper sleeves and copper wire. Calcareous deposits reduce both the dissolution and the corrosion of copper but not the contraceptive effectiveness of the TCu220C. Up to 125 months, the loss of copper from deposit-bearing devices amounts on average to 8 micrograms/day as against 23 micrograms/day for TCu220C models without visible coating.

Copper↗
PubMed1987

Tight nuchal cord and neonatal hypovolaemic shock.

Two neonates who went into acute hypovolaemic shock due to a tight nuchal cord were successfully resuscitated. The occurrence of this life threatening complication in two low risk pregnancies emphasises the importance of having staff trained in resuscitation immediately available in the delivery unit.

Female↗
PubMed1987

A randomized study of two cups for vacuum extraction.

O'Neil designed a set of suction cups which, because of more efficient lateral pull and greater maneuverability, were claimed to be more efficient and perinatally safer than the Malmström model. These claims were checked by comparing the two instruments in a randomized controlled trial comprising 410 attempted elective extractions. The two instrument groups were comparable at entry and the operators had a similar degree of experience, the sole inter-group difference being the 0.5 cm larger diameter of the O'Neil cups. No significant differences were found between the two types of instrument as to failure rate, incidence of correct cup positioning, and capacity of eliciting internal rotation nor was there a significant divergence in neonatal safety. In a few cases the perineum was lacerated by the traction cord affixed to the O'Neil instrument. The results of this study indicate that the relative advantages and disadvantages of the two cup models are unremarkable.

Extraction, Obstetrical↗