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L Spätling

Publications and source records attributed to L Spätling.

At least 19 recordsLinked to original sources
PubMed1997

External four channel tocography in preterm labor. First results.

In order to known more about preterm labor the objective of our investigation was to look for a correlation between the spatial and temporal pattern of uterine contractions and the duration of pregnancy. 50 patients with preterm labor between 21 and 35 weeks of gestation underwent repeated measurements using four-channel tocography in which the pressure of contractions was registered simultaneously on the left and right sides at the fundus and the lower segment of the uterus. Half of all recorded signals were locally restricted (typical labor pattern in only one or two registration tracks). The following two phenomena were significantly associated with a shorter duration of pregnancy: 1. the reproducibility of a center of dominance (defined as the locus of registration with the highest sum of amplitudes), and 2. a predominant origin of labor in the right fundal region of the uterus. Four-channel tocography indicates whether preterm labor is likely to lead to preterm delivery. It may therefore help the obstetrician in deciding whether to use tocolytic therapy.

Adolescent↗
PubMed1997

[Tocolysis].

Effectiveness of tocolytic strategies are difficult to prove and should called in question. Tocolysis by betaadrenergic agents inhibit a symptom without eliminating causing pathologies. Initial steps in etiology as well as therapy should be based on the entire organism including the psyche with a special focus on uterus, cervix and feto-placental unit. Magnesium depletion and infection are important causes of preterm labour. Application of betaadrenergic agonists should be pulsatile by bolus tocolysis demonstrating rare side effects.

Adrenergic beta-Agonists↗
PubMed1996

Therapeutic availability of iron administered orally as the ferrous gluconate together with magnesium-L-aspartate hydrochloride.

Since in vitro experiments had excluded interactions between Fe-gluconate (Fe-gluc) and magnesium-L-aspartate hydrochloride (MAH) in aqueous solutions the present in vivo studies seemed to be justified. Animal studies: Rats were kept on magnesium-(Mg)- and iron-(Fe)- sufficient and deficient diets. The intragastral administration of Fe-gluc significantly increased plasma Fe after 3 h, either given alone, or in combination with MAH (inducing hypermagnesemia). Same results were obtained when fortified diets were offered to Fe/Mg-deficient animals. Human studies: The combination of Fe-gluc (2 x 50 mg Fe per day, per os) plus MAH (2 x 7.5 mmol Mg per day, p.o.) was well tolerated by healthy volunteers. Single dose experiments revealed that Fe-gluc alone and in combination with MAH increased plasma Fe levels during 3 h to the same extent. Two groups of pregnant women with moderately reduced hemoglobin levels either received Fe-gluc (out-patients) or its combination with MAH (at least temporarily hospitalised because of preterm labor). Treatments were well tolerated. Hemoglobin levels did not further decrease, as expected without Fe supplements, during the course of pregnancy, thus indicating the therapeutic availability of the electrolytes in both study groups. Progesterone-induced constipation is frequently observed during pregnancy; hence stool softening reported by 50% of the women receiving Fe-gluc plus MAH (versus 33% in the Fe-gluc group) can be regarded as desirable effect. It is concluded that MAH does not interfere with the enteral absorption of Fe-gluc when both electrolytes are orally administered together. Taking both electrolytes together instead of 2 to 3 h apart from each other, as actually recommended, means a less complicated dosage regimen and probably improves compliance.

Administration, Oral↗
PubMed1995

[Methemoglobinemia in the newborn infant--caused by prilocaine?-- A case report].

The occurrence of postpartum cyanosis is primarily linked to pulmonary or cardiac causes. However, under differential diagnoses, methaemoglobinaemia should also be taken into consideration the causes of which may have toxical or hereditary origins. Diagnosis can be made by photospectrometical analysis of the methaemoglobin level in blood. Pathogenetical evidence is obtained by way of reduction method with methylen blue. This method will lead to consistently reliable results only, if the methaemoglobinaemia is of toxic nature. An example of toxically induced neonatal methaemoglobinaemia, which with great probability was caused by pudendus anaesthesia with Prilocain, is discussed in this case report.

Adult↗
PubMed1994

External four-channel tocography during delivery.

OBJECTIVE: A four-channel tocographic technique was developed in order to improve present knowledge of spatial uterine motility. METHOD: Fifty-four women were monitored during labor. Four pressure transducers were attached in a square around the umbilicus. RESULTS: The origin of uterine contractions was generally determined to be in the upper right segment of the uterus. The rate of operative deliveries was decreased in the case of predominant upper right origin of labor. Most of the contractions with clear propagation patterns originated on the upper right side, continued to the left and then spread to the lower right part of the uterus. The highest relative intensity was also measured on the upper right side. CONCLUSION: Predominant upper right origin of labor may be important for unassisted or spontaneous delivery.

Adult↗
PubMed1994

[Plasma and myometrium electrolyte changes in the last trimester of pregnancy].

It is well known, that magnesium can positively influence preterm labour and that the magnesium level in the plasma is significantly lowered whereby magnesium excretion increases during pregnancy. These results lead to the question, whether the magnesium content in the myometrium is also reduced during pregnancy and whether blood parameters correlate with the concentration of magnesium in the myometrium. Myometrial tissues and blood samples from 127 patients, who underwent a Caesarean section, were analysed for magnesium, calcium, sodium and potassium. Erythrocytes, haemoglobin, haematocrit and the hormones oestradiol, oestriol and progesterone were analysed in the serum. We found a decrease in magnesium in the myometrium (p < 0.01) and in the plasma (p < 0.05) during pregnancy. Magnesium in the plasma correlates with magnesium in the myometrium (p < 0.001). These results indicate, that hypomagnesinaemia during pregnancy decreases the magnesium level in the myometrium.

Cesarean Section↗
PubMed1994

[2 successful pregnancies in a woman with type I osteogenesis imperfecta].

The chance of a woman with osteogenesis imperfecta to succeed in a pregnancy with a healthy baby and without any harm to herself, is poor. A case of a 37-year old patient is presented, who consciously became pregnant twice, despite her severe illness. Both pregnancies finally resulted in Caesarean section, but without any complications to the patient. While the first child, a boy, is healthy, the second, a girl, is expected to suffer from phosphate diabetes since the father suffered from this illness.

Adult↗
PubMed1994

Potentiation of magnesium-deficiency-induced foetotoxicity by concomitant iron deficiency and its prevention by adequate supply via drinking water.

Magnesium (Mg) and iron (Fe) deficiency frequently develop during pregnancy. Therefore these factors were studied alone (Mg-L, resp. Fe-L) or in combination (Mg-L/Fe-L) on 16 female and 8 male adult fertile Sprague-Dawley rats. The animals were offered a basal diet containing 30 per cent and 17 per cent of the rat's requirement for magnesium and iron, respectively, starting 21 days before mating (2:1) until 49 days after mating. Offspring were also kept on this regimen during a 3-week lactation period and 7 days post weaning. Drinking water was either enriched with 101 ppm Fe2+ (ferrous gluconate): Mg-L, or 365 ppm magnesium (magnesium-L-aspartate hydrochloride trihydrate, MAH): Fe-L, or with any: Mg-L/Fe-L or with both electrolytes: Controls. Fertility remained unaffected under these conditions. Clinically, Fe-L induced iron deficiency and growth retardation of offspring. Pronounced reproductive toxicity was elicited by Mg-L and was even potentiated by Mg-L/Fe-L. In the parental generation, too, adverse effects of Mg-L were aggravated by Mg-L/Fe-L despite the fact that no iron accumulation occurred. Bioavailability of iron was not impaired by magnesium as MAH. With respect to human pregnancy magnesium supplementation has higher priority over iron supplements. To improve tolerance and compliance both minerals are suggested to be taken simultaneously.

Administration, Oral↗
PubMed1994

Interactions between magnesium and iron. In vitro studies.

In vitro experiments were performed to study the effects of magnesium (Mg) on the absorption of iron (Fe), which have been reported in the literature. Both poorly soluble Mg compounds (Mg oxide and Mg trisilicate) and a readily soluble Mg salt (Mg aspartate hydrochloride trihydrate) were studied along with ferrous gluconate. The influence of the addition of Mg aspartate hydrochloride, Mg oxide and Mg trisilicate on the pH of aqueous acidic solutions was examined initially. As expected, the Mg salts employed as antacids (Mg oxide and Mg trisilicate) were found to have a potent neutralising effect, while after the addition of Mg aspartate hydrochloride the pH value was only slightly shifted toward the alkaline side. These findings suggest that Mg aspartate hydrochloride--unlike Mg oxide and Mg trisilicate--has no appreciable influence on Fe absorption, as the availability of Fe salts in the intestinal tract is pH dependent. A procedure simulating the physiological variations of the pH value in the gastrointestinal tract was used to determine the Fe and Mg content in the supernatant after the addition of the above Fe and Mg salts to aqueous solutions. The addition of poorly water-soluble Mg compounds was shown to result in a drastic reduction in the amount of Fe contained in the supernatant. These data are in agreement with those reported in the literature. However, no decrease in the amount of dissolved Fe was noted in the presence of Mg aspartate hydrochloride. These findings confirm that poorly water-soluble Mg compounds have a high capacity to adsorb Fe and, thus, interfere with Fe absorption.(ABSTRACT TRUNCATED AT 250 WORDS)

Aspartic Acid↗
PubMed1993

[Magnesium in obstetrics and gynecology].

Pregnancy induces a significant decrease of magnesium levels in serum and myometrium of 15%. A 25% increase of magnesium excretion in urine may be the most important reason. Magnesium supplementation during pregnancy seems necessary because it improves maternal health and fetal outcome. Magnesium supplementation reduces the incidence of preterm labour and vaginal haemorrhage. Premature delivery is significantly reduced from 8.2 to 2.8%. Intravenous magnesium application in pharmacological doses is still the therapeutic basis in pre-eclampsia and eclampsia. In gynaecology magnesium relieves premenstrual mood changes and alleviates dysmenorrhoea.

Female↗
PubMed1993

Therapeutic exercise for insulin-requiring gestational diabetics: effects on the fetus--results of a randomized prospective longitudinal study.

Regular physical activity is an established therapeutic adjunct in diabetes, but has not been offered to pregnant diabetics in the past; for sports might induce significant cardiovascular and hormonal changes that are able to reduce blood flow to the uterus and thus limit oxygen transfer to the fetus. Studying the impact of a medically supervised exercise program on gestational diabetes mellitus [GDM) in a randomised prospective longitudinal study, this paper aims to assess the effects of maternal moderate and strenuous exercise on the fetus. By evaluating shortterm fetal responses as reflected in heart rate patterns (FHR) and longterm-pregnancy complications and neonatal outcome, our results suggest that--in absence of ominous FHR changes or significant changes in uterine activity following the exercise sessions or increased diabetes-related peri- and neonatal morbidity--regular physical activity seems to be a safe therapeutic option for the fetus of GDM mothers.

Adult↗
PubMed1992

[The magnesium and calcium content of pre- and postmenopausal myometrium].

Magnesium and calcium, as well as sodium and potassium, have an important influence on the physiology of contraction of the uterus. The ionic concentrations in the pre- and postmenopausal myometrium were examined. We assumed, that there are differences in the electrolytic contents because of the different functions of the corpus, isthmic part and cervix uteri during pregnancy and throughout labour. Small tissue samples from 37 premenopausal and 20 postmenopausal patients, who underwent an operation with different indications, were dissected after hysterectomy. Magnesium and calcium levels were determined by atomic absorption spectrophotometry and potassium and sodium by emission spectrometry in the wet tissue. In both groups, we found significant differences of the electrolytic contents of the myometrium. In the premenopausal uteri, the magnesium levels decrease significantly (p < 0.001) from the corpus (mean = 4.14 mmol/kg) to the cervix (mean = 2.14 mmol/kg). The same scenario can be observed for the potassium levels (Corpus mean = 56.2 mmol/kg and cervix mean = 25.4 mmol/kg). In contrary, the calcium levels (Corpus mean = 1.60 mmol/kg and cervix mean = 2.26 mmol/kg) and sodium levels (Corpus mean = 69.3 mmol/kg and cervix mean = 93.0 mmol/kg) increase significantly (p < 0.001). In the postmenopausal group, we found slightly elevated concentrations of magnesium, sodium and potassium. Only the calcium content of the corpus uteri rises up to three times about 20 years after the menopause (from mean = 1.60 mmol/kg) (p < 0.001). The electrolytic contents in the myometrium were shown to be different in the corpus, isthmus and cervix uteri.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗