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Biomedical subjects

A Rempen

Publications and source records attributed to A Rempen.

At least 55 records · Page 3Linked to original sources
PubMed1987

Prenatal diagnosis of bilateral cystic adenomatoid malformation of the lung.

Bilateral cystic adenomatoid malformation of the lung (CAML), solid type (Stocker III), is a rare malformation that we observed sonographically in two fetuses at 23 weeks. The ultrasonic image showed an echogenic mass compressing the heart and occupying the whole thoracic cavity. Massive ascites, probably as a result of heart failure, was apparent. The prognosis is fatal. Prenatal diagnosis enables termination of pregnancy and saves the mother from invasive procedures in case of fetal distress. In unilateral, more favorable lesions, the managing physician is prepared for respiratory distress of the newborn and an emergency operation.

Female↗
PubMed1987

Transmission rate of Ureaplasma urealyticum, Mycoplasma spp., Gardnerella vaginalis, B-streptococci, Candida spp. and Chlamydia trachomatis from the mother to the newborn.

In a preliminary study of the transmission rate of Ureaplasma urealyticum, Mycoplasma species, Gardnerella vaginalis, B-Streptococci, Candida species and Chlamydia trachomatis from the mother to the newborn, swabs were taken from 45 parturients and their neonates and cultured by suitable methods. Out of 30 parturients with a positive culture, 8 harboured more than one microorganism investigated. U. urealyticum was found in 11 newborn and all of them had a positive mother. Candida spp. were found in 4 newborn, but 3 of these had a negative mother. G. vaginalis was detected in only 1 infant and the mother was negative. C. trachomatis was not isolated from any mother but was present in 2 newborn infants. Thus only U. urealyticum showed clear evidence of transmission from mother to baby.

Candidiasis, Vulvovaginal↗
PubMed1987

[Vaginal sonography of intact pregnancy in the first trimester].

The experiences in vaginal sonography in early pregnancy are reported and the first results concerning the dimensions of various structures in relation to gestational age are given. Intra-uterine structures can be identified and evaluated from a measured minimum diameter of 2-3 mm. Visualization of the chorionic cavity which proves an intra-uterine pregnancy, is possible with 4 complete weeks p.m. With 10 weeks p.m., it reaches a mean diameter of nearly 50 mm. The yolk sac which normally measures 4-5 mm and excludes a blighted ovum, is reliably seen from 5 to 10 weeks p.m. The embryo and its cardiac action which proves viability of the gestation, is recognized with 6 weeks p.m. With 10 weeks p.m., the crown-rump-length measures approx. 40 mm. Thus with vaginal sonography, the mentioned important parameters of early gestation are visible 1-2 weeks earlier than with abdominal ultrasound examination. Furthermore, other structures like amnion, umbilical cord, cranial pole of the embryo etc., can be identified earlier and in more detail. The corpus luteum is frequently recognized in the ovary as an echo-free structure with a more echo-dense border. If a non-viable early pregnancy is suspected, long hospitalization and expensive hormonal investigations are avoided by the early demonstration of a viable intra-uterine pregnancy.

Chorion↗
PubMed1986

Fetal lymphangiectasia--another cause for a positive amniotic fluid acetylcholinesterase test.

A case of a fetal lymphangiectasia on the ventral aspect of the neck was detected prenatally by ultrasound examination. Polyhydramnios was present. AFP values in amniotic fluid and maternal serum were in the upper normal range. An acetylcholinesterase band was found on gel electrophoresis. After delivery the prenatal diagnosis of congenital isolated lymphangiectasia was confirmed. The case illustrates a further example of a positive acetylcholinesterase test not associated with a neural tube defect.

Acetylcholinesterase↗
PubMed1986

[Prenatal diagnosis and postnatal course in abnormalities of the kidneys and urinary tract].

The authors' own experiences concerning the prenatal diagnosis and postnatal course in 26 foetuses with anomalies of the urinary tract are reported. The malformations observed can be separated into five groups which can also be distinguished sonographically: Urinary tract malformations of poor prognosis, Unilateral cystic kidneys. Hydronephroses, Urinary tract malformations with ascites, Urinary tract malformations in combination with other anomalies of poor prognosis. Sonographic differentiation of the multicystic kidney (Potter type IIA) from the hydronephrosis is usually possible. The recognition of cystic renal dysplasia in urinary tract obstructions (Potter type IV) and the differentiation of renal hypoplasia from renal agenesis is difficult. The dilatation of the urinary system has to be generally regarded as an unspecific symptom, the cause of which can be finally clarified only in the postnatal period. Prenatal invasive diagnostic procedures were carried out only in two foetuses. A concomitant anhydramnios was always associated with a poor prognosis. In the case of unilateral of bilateral dilatation of the urinary tract with normal or slightly diminished amniotic fluid volume, induction of labour or prenatal intervention for drainage in utero was not indicated. The prognosis was infaust in 15 foetuses. One infant died of an unknown cause. Out of 10 surviving infants, six were successfully operated on, in three the dilatation of the urinary tract resolved spontaneously, and one child with prune belly-syndrome has to be catheterised daily.

Adolescent↗
PubMed1985

Differential diagnosis of sonographically detected tumours in the fetal cervical region.

Differential diagnosis of sonographically detected fetal neck tumours is difficult. The sonographic criteria for encephalomyelocele, lymphangioma/hygroma, teratoma, sarcoma, haemangioma, neuroblastoma and goitre are given on the basis of the authors' own observations and information from the literature. Elevation of alpha-fetoprotein in the amniotic fluid is a frequent but non-specific finding. Chromosome analysis after amniocentesis can be a useful supplementary procedure for assessing the prognosis and deciding upon the delivery procedure. Sonographic detection of a tumour in the fetal neck region enables preparations to be made for dystocia and postnatal dyspnoea of the newborn. The obstetrician must cooperate closely with paediatricians, neurologists, surgeons and ENT specialists.

Diagnosis, Differential↗
PubMed1981

[Anterior resection and abdomino-perineal extirpation in patients with rectal cancer: a retrospective analysis (author's transl)].

Eighty-seven patients with an abdomino-perineal extirpation of the rectum and 75 patients with an anterior resection of the rectum could be analysed retrospectively. The mean observation period was 36 months for anterior resection and 38 months for abdomino-perineal extirpation. The rate of recurrences, mortality, and postoperative complications of each surgical method was correlated to tumor-localization, -staging, and -grading. The poor prognosis of patients with abdomino-perineal extirpation was mainly due to relatively more cases in advanced tumor stage. In rectal cancer above 7 cm anterior resection should be performed.

Female↗
PubMedDate not supplied

[Cordocentesis and pH determination sub partu in suspicious cardiotocogram].

Two courses of labor with growth-retarded fetuses are reported, during which cordocentesis was performed because of abnormal fetal heart rate patterns along with a closed cervix. Analysis of umbilical venous blood revealed a normal pH in both cases thus avoiding cesarean section.

Acid-Base Equilibrium↗
PubMedDate not supplied

[Vaginal sonography in the 1st trimester. I. Qualitative parameters].

To establish exact data about the ultrasound image of early pregnancy and the detection rate of relevant structures, the vaginosonographic examinations of 259 normal intrauterine singleton pregnancies with reliable dates between 4 and 13 complete weeks menstrual age were analysed. The chorionic cavity as the first specific structure of pregnancy, was imaged in all cases. The chorion frondosum could be differentiated from the chorion laeve at 6/7 weeks. The yolk sac was reliably seen at 5 weeks. The embryo and its heart activity proving viability of pregnancy, were regularly found at 6 weeks. At 7 weeks the amnion was seen separately from the embryo. At 7/8 weeks its cranial pole and the umbilical cord were reliably identified. At 8/9 weeks the extremities as well as body movements were visible. Vaginal sonography is a valuable tool to examine early pregnancy and to prove its normal development. Visualization of the sequentially appearing structures may be also helpful to estimate gestational age.

Abortion, Spontaneous↗
PubMedDate not supplied

[Vaginal ultrasonography in the first trimester. II. Quantitative parameters].

To study the development of the size of various gestational parameters in the first trimester, the vaginal sonographic measurements in 259 normal intrauterine singleton pregnancies with reliable dates between 4 and 13 complete weeks menstrual age were analysed. Growth curves of the mean chorionic cavity diameter, the maximum thickness of the trophoblast, the yolk sac diameter, the crown-rump length, the mean amniotic cavity diameter, the biparietal diameter, the transverse abdominal diameter and the femur length as well as the course of the embryonic heart rate together with their 90% confidence limits, respectively, are shown. Normal values are given to estimate pregnancy age from the various parameters. The confidence interval of gestational age to the 95th and 5th percentile, respectively, was +/- 6 days using the crown-rump length, +/- 8 days using the biparietal or transverse abdominal diameter and +/- 9 days using the mean chorionic diameter.

Confidence Intervals↗
PubMedDate not supplied

[Possible factors affecting dilatation of maternal kidney calices in pregnancy].

In a retrospective analysis we examined several factors in regard to the dilatation of the renal calyces during pregnancy in a normal group of 187 pregnant women between 8 and 42 weeks of pregnancy. The dilatation of the calyceal system was more frequent in case of preceded pyelonephritis, in primipara and bipara, and in younger pregnant patients. We found a significant increase of the dilatation with progress of pregnancy.

Adult↗
PubMedDate not supplied

[Ultrasonography of pregnancy-induced dilatation of maternal kidney calices in a normal patient sample].

To examine the physiological changes of the calyceal system during pregnancy, we selected a normal group of 187 pregnant women by anamnestic, clinical, ultrasonic and laboratory findings. The sonographic investigation of renal pelvis, renal calyces and ureters revealed a more frequent and more pronounced dilatation of the right side. The dilatation was more marked as expected by literature. The complete involution post partum occurred mostly during the first ten days. Even after marked dilatations, a parenchymal reduction could not be found.

Adolescent↗
PubMedDate not supplied

[Diagnosis and therapy of an in the cesarean section scar implanted early pregnancy].

The diagnosis of a 7 weeks-old pregnancy implanted in the uterine scar after caesarean section is reported. The sonographic findings prompted the adequate intervention without time-loss. The removal of pregnancy prevented the life-threatening complication of rupture of the uterus and enabled the preservation of the uterus and thus the fertility of the patient.

Adult↗
PubMedDate not supplied

[Spontaneous regression of fetal megacystis in the 3d trimester].

The sonographic diagnosis of a fetal megacystis in the first trimester is reported that later regressed spontaneously. Therefore, at first only follow-up examinations are indicated in case of early dilatation of the fetal bladder as the outcome may be normal. The case illustrates that great caution must be exercised in predicting an unfavorable outcome of fetuses with an early dilatation of the bladder.

Adult↗
PubMedDate not supplied

[Incidence of conspicuous ultrasound findings in the brain in clinically asymptomatic newborn infants].

With an intracranial ultrasound screening at the University Clinic for Obstetrics and Gynaecology Wuerzburg, an abnormal finding was seen in 88 out of 673 clinically asymptomatic usually mature newborns (13.1%). It concerned 37 subependymal/intraventricular haemorrhages (5.5%), sequelae of an old intrauterine bleeding in 9 cases (1.3%), 38 ventricular asymmetries (5.7%), 5 choroidal plexus cysts (0.7%), 6 arachnoidal cysts (0.9%) and 1 infratentorial tumour (0.2%). Only mild cerebral haemorrhages were observed. Follow-up studies of children with an abnormal cerebral finding are desirable to determine its clinical significance and long-term prognosis.

Arachnoid↗
PubMedDate not supplied

[Prenatal sonographic diagnosis and clinical consequences in small intestine obstruction].

Fetal intestinal obstructions can be diagnosed and differentiated from other intra-abdominal lesions with prenatal sonography. The characteristic signs are persistent echo-free areas in the fetal abdomen which frequently show peristaltic movements, and the accompanying polyhydramnios. A vaginal delivery near term is desirable and tocolytic agents and therapeutic amniocentesis should be used in the event of premature labour and maternal distress due to polyhydramnios. Premature labour also necessitates the induction of pulmonary maturation with corticoids. At least weekly ultrasonic controls are advisable to detect the rare bowel perforation. In the case of an intestinal rupture, the risk of prematurity must be weighed against the risk of abacterial meconium peritonitis before labour is induced. Own observations in five prenatally diagnosed intestinal obstructions and a review of the literature confirm the proposed management in these infants.

Diseases in Twins↗