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Biomedical subjects

G Magnin

Publications and source records attributed to G Magnin.

At least 55 records · Page 3Linked to original sources
PubMed1994

[Maternal mortality in Guinea: magnitude and perspectives].

In recent years maternal mortality in developing countries has become a public health priority for international organizations. However, measuring the true magnitude of this problem is the subject of much methodological debate. In less than a century, the rate of maternal mortality in most industrialized countries has decreased one hundred-fold. In contrast, the rate remains very high in most developing countries, particularly in Africa. In this article based on the studies conducted in Guinea we review various operational proposals which may contribute to improving maternal health and reducing maternal morbidity and mortality, with particular reference to the work of the French speaking organization "Santé Maternelle Internationale".

Adolescent↗
PubMed1994

[Premature rupture of membranes. Prospective study of 218 cases].

OBJECTIVES: To verify the importance of a wait-and-see attitude after premature rupture of the membranes before 34 weeks of amenorrhoea when allowed by the initial physical examination and of an intervening attitude after 34 weeks. STUDY: A prospective study included 218 cases of premature ruptures of the membranes divided into four groups according to the weeks of amenorrhoea: Group 1, before 32 weeks (n = 11); Group 2, between 32 and 34 weeks (n = 26); Group 3, between 34 and 37 weeks (n = 18); Group 4 after 37 weeks (n = 163). RESULTS: Before 34 weeks of amenorrhoea, the frequency of premature rupture of the membranes was 0.72%, of germ-positive infants 8% and of infected infants, 11%. Perinatal mortality was 80% and 17.4% of the infants were delivered by cesarian section. Labour was induced in 100 cases (46%), when there was evidence of infection, after a 24-hour waiting period or at 34 weeks of amenorrhoea. When the aspect of the cervix was unfavourable, cervical maturation was induced by intravenous injection of prostaglandins in 75 cases (34%). CONCLUSION: When the rupture occurred before 34 weeks of amenorrhoea and without signs of infection, tocolysis should be entertained. From 28 to 34 weeks and when a favourable outcome is expected, maturation by corticoids can be proposed. When chorio-amniotic infection is suspected and is not confirmed by the laboratory, antibiotic prophylaxy does not appear to improve fetal outcome. The beneficial effect of a conservative wait-and-see attitude before 34 weeks and of intervening thereafter can only be demonstrated with a large randomized study. Thus each case must be managed individually, making it difficult to establish a standard recommended attitude.

Adrenal Cortex Hormones↗
PubMed1994

[Benign pelvic schwannoma. A case report].

A rare case of benin pelvic schwannoma was observed fortuitously during normal echographic follow-up of a cyst of the ovary. The usually silent tumours are difficult to diagnose. Computed tomography appears to be the most informative examination concerning the nature of these tumours and their relations with the surrounding structures. Nevertheless, the exact nature cannot be determined before curative surgical exeresis and pathology examination. The risk of relapse is extremely small, but does exist, justifying follow-up.

Aftercare↗
PubMed1994

[A "no-bleeding" substitute hormone treatment with an oral microdose progesterone. A prospective multicenter study].

AIMS: Study of influence of different sequences of oral micronized progesterone (Pg) on endometrial morphology and the incidence of bleeding. DESIGN: Prospective comparative multicentric study conducted in 101 post-menopausal patients. PATIENTS AND METHODS: 98 patients who did not wish any regular withdrawal bleeding were given percutaneous oestradiol 17-beta (E2) (1.5 mg/d) associated with micronized Pg (100 mg/d) at bedtime during either 21 out of 28 days (group I), or 25 days per calendar month (group III), during a minimum of 6 months. For those wishing withdrawal bleeding (n = 3), E2 (3 mg/d) during 25 days was associated with Pg (300 mg/d) from the 16th to the 25th day of the month (group III). Endometrial biopsies were performed after 6 months of the same treatment and blindly analysed; transvaginal ultrasonography (measurement of endometrial mucosa thickness) was done in case of insufficient amount of tissue. RESULTS: Groups I and II: 61% of the endometrium were quiescent without mitosis, 23% were slightly active with rare mitoses, 8% partly secretory and 4% subatrophic. Sampling was inadequate in the remaining 4%. Mitotic activity of glands was low on the overall samplings (average < 0.53/1,000 cells). The average mucosa thickness was at 3.9 mm. No bleeding (spotting or withdrawal bleeding) occurred in 73.3% and 82.1% of cycles at the 3rd and 6th months of administration, respectively. Group III: endometrium were quiescent or slightly active and combined with frequent withdrawal bleeding. CONCLUSIONS: A relatively low dose of oral progesterone (100 mg/d) combined with E2 during 21d/28d or 25 d/month efficiently controls proliferation, induces a very low endometrial cyclic activity--while reducing spottings--and maintains an amenorrhea in the majority of women. This simple treatment is likely to improve compliance.

Administration, Cutaneous↗
PubMed1993

[Obstructive myocardiopathy and pregnancy].

We report a case of pregnancy in a patient with severe obstructive cardiomyopathy treated with beta-blockers. A review of the literature shows that in spite of possible worsening of the functional symptomatology, pregnancy does not increase the risk of mortality. The recommendations for the conduct of the delivery are reviewed. The risks for the fetus are essentially linked to the treatment with beta-blockers and the possibility of inheritance of the condition.

Adrenergic beta-Antagonists↗
PubMed1993

[Familial cancer of the ovary. A family with 6 index cases].

Greggi and Kerlikowske have worked out that a woman has a 1.4% chance of developing ovarian cancer during her life. When cancer of the ovary is found, 5 to 10% of these cases have a familial form of this pathology. Thus there are some hereditary forms of cancer of the ovary and Lynch has demonstrated that there are three types of hereditary associations with ovarian neoplastic pathology: specific familial cancer of the ovary, cancer of the ovary associated with endometrial cancer and with non-polypoidal cancer of the caecum and rectum, cancer of the ovary associated with cancer of the breast. The clinical material we are presenting here is of the first type of association and we are reporting the study of a family in which 6 members in two generations had cancer of the ovary and of whom one had cancer of the breast as well. Familial cancer of the ovary shows different characteristics coming on as it does earlier (ten years earlier) and with a shorter length of survival (1.8 as against 5 years). The risk of the next generation having ovarian neoplastic pathology is clear because there is a 50% chance in a patient who has a history of cancer of the ovary in at least two first degree relatives. For most daughters when this type of familial cancer is found it is justifiable to carry out prophylactic oophorectomy from the age of 35 year onwards. Particular supervision should be carried out for patients who are members of a family where 2 index cases have been found within 20-35 years.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1993

[Congenital arteriovenous malformation of the internal iliac artery discovered during pregnancy].

We report a case found at the start of labour because of the presence of a "tumour praevia". Ultrasound, Doppler and tomodensitometric examination carried out after caesarean section confirmed the vascular origin of this lesion. Arteriography made it possible to decide the pattern of this arteriovenous malformation which was occurring in several branches of the left internal iliac artery. It was not possible to obliterate it completely by selective arterial embolisation, so it was removed surgically a few months later. Little is known about the complications that occur because of these arteriovenous malformations in pregnancy and during delivery. There is the theoretical risk that spontaneous rupture will occur in pregnancy but this does not justify terminating the pregnancy. It is better to carry out caesarean section because the tumour can obstruct delivery and may rupture as well as causing delay in labour. The treatment for these lesions is sometimes difficult and complex and one has to decide whether to preserve the uterus or not. Selective embolisation and pre-operative embolisation followed by surgical removal of dysplasic tissue are the therapies of choice.

Adult↗
PubMed1993

[The Hellp syndrome: a frequent (?) obstetric emergency].

Preeclampsia is a multisystem disorder of pregnancy whose clinical presentation is related to the importance and the extent of maternal microvasculature damage. 16 patients with preeclampsia, thrombocytopenia (< 100,000/mm3), elevated liver enzymes and hemolysis are described. Weinstein in 1982 assigned the acronym of Hellp syndrome for this clinical presentation of preeclampsia. This syndrome was seldom recognized during the first years of the study but was diagnosed later on, in 1 pregnancy out of 600 parturitions and in 5% of preeclampsia in 1991. Two out of the patients developed eclamptic seizures. The mode of delivery was as follows: 9 out of 16 had an emergency Caesarean section; the 7 other patients had vaginal delivery after induction of labor. Delivery occurred before 32 weeks of gestation for 6 out of 17 newborns. Outcome was good for 14 of the 17 newborns (one twin pregnancy). Two fetuses died: one in utero and one during interruption of the pregnancy at 24 weeks of gestation. A small for gestational age preterm of 32 weeks died on his second day of life. Early diagnosis of Hellp Syndrome, especially when abdominal pains are present, allows a prompt management of these patients, including delivery, which appeared in our experience, the only way to avoid fetomaternal complications. The thrombotic microangiopathics and acute fatty liver of pregnancy are potential imitations of Hellp syndrome and they must be considered for differential diagnosis. The frequency of Hellp Syndrome varies from one study to another. It can be increased up to 6 fold if referred to the number of pregnancies and up to 3 fold if referred to the number of preeclampsias. These differences can be real but may be due to bias related to differences in practice between centers and also differences in definitions of Hellp Syndrome and preeclampsia.

Adolescent↗
PubMed1993

[The role of ultrasound-guided puncture in the evaluation of liquid tumors of the ovary].

Twenty percent of liquid tumors of the ovary are persistent functional cysts. Laboratory tests of the cystic fluid should make it possible to distinguish between functional cysts and organic cysts. In 170 patients derived from a multicenter study and presenting with a liquid tumor of the ovary (including 9% of cancers), samples of the cystic fluid and serum were taken from the patient and the ACE, CA 125, CA 19-9 markers, estradiol and Progesterone were assayed. The results of these assays were subjected to computerized analysis and compared with the pathological findings. The assays were able to discriminate between organic cysts and functional cyst with 93% of sensitivity and 95% specificity. The insufficient reliability of this evaluation justified a second study (in progress) which is limited to the study of pure fluid tumors with thin walls, no partitions, no vegetations and measuring less than 8 cm in diameter in which the incidence of cancers is very low. This study should fine tune the initial findings and result in a sensitivity approaching 100 percent. If this hypothesis is confirmed, it should be possible to include ultrasound-guided puncture carried out under closely defined conditions in the therapeutic decision trees for liquid cysts of the ovary.

Adolescent↗
PubMed1992

[The HELLP syndrome. 13 cases].

The Hellp syndrome is a complication of raised blood pressure in pregnancy, haemolysis, a rise in liver enzymes and thrombopenia. In this retrospective study we report 12 cases of Hellp syndrome which occurred in the University Hospital Centre of Poitiers between 1982 and 1990 and we discuss causes, the progress, the prognosis and the management. Six patients were helped by prophylactic Caesarean operation. Two patients had eclamptic fits. Fortunately there was no maternal death. There were seven cases of intrauterine growth retardation, two of in utero fetal death and one of early neonatal death. When clinical and biological parameters of the Hellp syndrome come right following delivery, the outlook for the mother is quickly favourable, but the syndrome can continue and sometimes become worse after delivery. Stopping the pregnancy is the basic treatment and conservative treatment has only a very limited success. Finally, the prognosis for the future is usually good and it is unlikely to recur.

Anemia, Hemolytic↗
PubMed1992

[The Harlequin Baby syndrome. A new case].

The Harlequin baby syndrome is a rare but lethal ichtyosis. We report a new case of a primiparous woman of 28 years of age who had a pregnancy that progressed normally with the delivery of a child of 2,450 grams whose Apgar was 9 at one minute and 10 at three minutes, but who died after living just 24 hours. The reason for this work is to try to analyse the features that are known about possible treatment and antenatal diagnosis of the Harlequin baby syndrome. It has been suggested that vitamin A supplements should be given for several years because the skin state may be improved. On the other hand morbidity is likely to remain serious particularly from the point of view of growth and psychomotor development. Antenatal diagnosis using skin biopsy can be obtained after 23 weeks of amenorrhoea using a fetoscope; it shows the 25% of cases recur. At present the only treatment if a recurrence does occur is to terminate the pregnancy.

Abortion, Therapeutic↗
PubMed1991

[Q fever and fetal death in utero. Two cases].

Some cases of late abortion occurring after a Coxiella burneti infection, more often with a chronic evolution, have already been mentioned in the literature. We reported here two cases of early abortion, contemporaneous of an acute infection due to C. burneti. Two patients, after a contact, before and at the beginning of the pregnancy, with an animal susceptible to contaminate human beings by C. burneti, presented no clinical symptom characteristic of Q fever. The fetal death for the two cases was found out at the 17th week of amenorrhoea. All the investigations in order to search for an abortion etiology remained negative. Only, the specific serologies showed an acute infection due to C. burneti.

Adult↗
PubMed1991

[Human parvovirus B19 infection during pregnancy. 2 cases].

We report two cases of non immunologic hydrops fetalis associated with intra-uterine human parvovirus B19 (PV B19) infection. The outcome was stillbirth in both cases. Infection by PV B19 was suspected by the presence of intranuclear inclusions in fetal erythroblasts. It was confirmed by the presence of specific immunoglobulins M (IgM) against PV B19 in maternal sera. Intra-uterine infection with human PV B19 is known since 1984; this virus may cause non immunologic hydrops fetalis and stillbirth; teratogenic effects have also been suggested. Epidemiological studies, published in 1988 and 1990 have evaluated the risk of PV B19 fetal related death at 9% and no association was found between infection and congenital anomalies. Subsequent management of infected pregnancies is studied. We emphasize the interest of pathological examination of hydropic stillbirth for this diagnosis.

Adult↗