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H Weidinger

Publications and source records attributed to H Weidinger.

15 recordsLinked to original sources

[The advantage of preventive vaginal antisepsis with hexetidine in obstetrics and gynecology].

In five studies, the advantage of repeated vaginal prophylaxis by a new preparation of hexetidine vaginal suppositories (10 mg) was investigated prospectively, randomised and method-controlled (n = 2 x 50). After a five-day application, the hexetidine group achieved bacterial reductions of five log CFU/ml in the vagina and nearly three log CFU/ml in the cervix uteri, whilst no reduction was found in the controls at any time (p less than 0.01). The reduction of individual bacterial species was investigated in 224 pregnant and also gynaecological patients. In cases of impending preterm childbirth, a five-day application of 20 mg hexetidine/day could reduce all bacteria sufficiently with the exception of lactobacilli; especially beta Streptococci were reduced. The same was achieved by a three-day application of 10 mg hexetidine/day pre-operatively. A long-term study in 11,724 deliveries showed, that neonatal infectious mortality and morbidity after 36 gestational weeks could be reduced significantly by hexetidine. The new hexetidine preparation appeared to be efficient in vaginal antisepsis, especially in pregnancy. A favourable lactobacilli-selective effect was demonstrated. Since the importance of lactobacilli in vaginal ecology is known, hexetidine prophylaxis must be considered as advantageous in Obstetrics and Gynecology. From a practical and economic point of view, the application of hexetidine as vaginal suppositories appears favourable compared to antiseptic solutions.

Adult

[The use of partusisten in the delivery of triplets with an incarcerated fetus (author's transl)].

A triplet delivery is reported. The multiple pregnancy was undiagnosed prior to labor. Twins were diagnosed on admission for delivery. The ultrasonic and abdominal EKG findings at term are discussed. The hitherto undiagnosed third triplet became incarcerated following the administration of two units of syntocinon after the delivery of the second triplet. The intrapartum tocolysis with partusisten became life saving for the third triplet on three counts. 1. The progressive acidosis was stopped. 2. Time was gained to prepared for delivery of the last triplet. 3. Internal podalic version and extraction was much easier.

Diagnostic Errors

[The influence of beta-sympathomimetics and so-called Ca++-antagonistic inhibitors on human heart muscle in vitro (author's transl)].

In an in vitro assay on fetal human heart muscle it was demonstrated for the first time that overstimulation by beta-sympathomimetics could cause elective parenchymal necrosis. Fenoterolhydrobromide, which is used for tocolysis on a longterm scale, induces in vitro necroses of individual heart muscle fibers according to a pathogenetic principle postulated by Flekkenstein. The combination of Fenoterolhydrobromide with a Ca++-antagonist prevents elective parenchymal necroses by reducing the Ca++-influx into the heart muscle fibers. These results suggest that elective necroses of heart muscle fibers may be not only of coronarogenic but also of metabolic origin.

Calcium

[Tocolysis].

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Adrenergic beta-Agonists

[Potassium substitutes during tocolysis].

The level of serum potassium during tokolytic therapy with Partusisten and Isoptin decreases in the first 24 hours of therapy. This decrease is not due to an increase in renal potassium elimination. During tokolytic treatment the serum level of potassium returns to its normal value after 48 hours without potassium substitution. While there is a decrease in serum potassium noticeable changes in electrocardiogram which are typial for hypopotassemia are observed. These changes disappear afer 48 hours of tokolytic treatment but never the less the initial serum potassium drop should be balanced by potassium substitution within these 48 hours.

Adrenergic beta-Agonists

The effects of betamimetic drugs used for tocolysis on the fetal myocardium.

During the last five years tocolysis with betamimetic drugs, e.g. Fenoterol has become a standard method for the treatment of impending premature births. We studied the effect of Fenoterol in vitro on organ cultures of human fetal hearts. At a concentration in the nutrient medium corresponding to the dose used in clinical application, light and electron microscopy demonstrated myocardia damage. In contrast the combined use of Fenoterol and the calcium antagonist Verapamil in a ratio of 1:40 showed no pathological findings either clinically or in vitro. The results are documented with light and electron photomicrographs.

Ethanolamines

[Behaviour of serum concentrations of glucose, immunoreactive insulin and potassium ions in newborns after long term or crash treatments with Partusisten or Partusisten in combination with Isoptin (author's transl)].

The investigation was done on 50 infants born of metabolic healthy mothers. A group of 10 women received short term treatment with Partusisten and Isoptin. Another 10 were treated over the same period with Partusisten only. A further group of 15 received long term treatment (more than 7 days) with Partusisten and Isoptin and a final group of 15 mothers received placebos. Serum concentrations of glucose, immunoreactive insulin and potassium, together with acid-base-status and other important blood chemistry were determined in mothers and newborns directly postpartum. Blood sugar, immunoreactive insulin and potassium were further determined in the newborns 30 minutes, 60 minutes, 2 hours and 6 hours after birth. The results showed that a temporary relative hypoglycaemia occured in the newborns in short term as well as long term treatment with Partusisten or Partusisten in combination with Isoptin. Temporary derangements in insulin-glucose equilibrium were also seen in newborns from mothers receiving long term treatment. It was also demonstrated that approximately 1 hour post-partum, blood sugar and immunoreactive insulin of the newborn attained values compatible with normal carbohydrate metabolism. From these results it is indicated that infants born of mothers, who received tocolytic treatments with Partusisten or Partusisten in combination with Isoptin, should be given sodiumbicarbonate and glucose directly after birth.

Acid-Base Imbalance

[Changes in maternal cardiovascular parameter during tocolysis and in the dorsal position shock syndrome (author's transl)].

Maternal circulatory parameters and fetal heart rate were measured in 25 healthy pregnant women in the last trimenon during treatment with Fenoterol, Fenoterol in combination with Verapamil and Verapamil alone. Dosages were used in accordance with the tocolytic guidelines from Weidinger and Wiest. We were able to demonstrate that the betamimetic Fenoterol alone and in combination with the Ca++-antagonist Verapamil strongly increases the maternal heart rate an the maternal cardiac output whereas the peripheral resistance decreases accordingly. The average blood pressure stayed leveled, so that a decreased uterine blood flow cannot be assumed under betamimetics from the maternal cardiovascular point of view. However, there are indications for an increased placental blood flow during tocolysis. The betamimetic drug show no significant effect on the fetal heart rate. Additional application of the Ca++-antagonist Verapamil during tocolysis with Fenoterol (in dosages usually used for tocolysis) doesn't change cardiovascular reactions caused by Fenoterol. Change in position from supine to left lateral position caused a short term increase in the maternal cardiac output even noted in pregnant women without a clinically observed cavasyndrom. These changes of maternal cardiac output are comparable with those in orthostatic stress situations.

Adult

[Growth hormone in the newborn infant during the first 6 days of life].

Human Growth Hormone (HGH) of the newborn during its first days of life is approximately 61 ng/ml, then it falls between the third and fourth day. This fall in serum concentration principally occurs when the infant stops losing weight and starts regaining it. Experiences show that HGH of newborn does not stem from the mother.

Adult