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Biomedical subjects

H Hopp

Publications and source records attributed to H Hopp.

54 records · Page 3Linked to original sources
PubMed1983

[Laparoscopic tubal coagulation--technic and follow-up results].

This report presents 155 cases of laparoscopic electrocoagulation of the fallopian tubes. 53 coagulations were performed with unipolar devices, 102 ones with bipolar technique.--The patency of tubal obliteration was tested 12 weeks after the operation hysterosalpingographically.--In 4 cases the contrast medium was forced through the obliterated part of the fallopian tube, but controlled a half year later the tubes are completely closed. Hysterosalpingographic studies are not suited to criticize the reliability of laparoscopic sterilization. Severe operative and early postoperative complications were not to be seen.--The laparoscopic bipolar coagulation of the fallopian tubes is a method without the high of electric accidents. There is a great efficacy in producing sterility.

Electrocoagulation↗
PubMed1982

[Continuous peridural anesthesia--results of fractionated application in comparison to catheter infusion].

This report presents 100 epidural analgesias using a catheter in a high risk group. Two groups are compared, one with intermittent manual injections, the other with constant infusion rate (CIR) by means of a syringe with bupivacaine solution 0,5% and a pump. The analgetic effect was stable, without fluctuations and was adequate during the first and the second stage of labour in the group with CIR. The CIR avoids plasma peaks with transient hypoxemia of the fetus. The high blood pressure in patients with severe pregnancy induced hypertension is more decreased with this technique. In comparison to deliveries without epidural analgesia the instrumental delivery rate was higher, the fetal outcome was equal. Severe complications are not seen. The indicated use of the epidural analgesia with CIR is recommended.

Acid-Base Equilibrium↗
PubMed1979

[External cardiotocography utilizing the US-Doppler principle developed by VEB Ultraschalltechnik Halle].

Clinical report about an ultrasonic cardiotocograph developed by VEB Ultraschalltechnik Halle/GDR. The ultrasonic-option was combined with variable modules of the Biomonitor system (VEB Kombinat Messgerätewerk Zwönitz).--Efficiency and clinical results registered with this new equipment are demonstrated by means of numerous FHF-patterns.--The cardiotocographic method is very important in connection with a further decrease of perinatal mortality and morbidity. A shortly beginning of industrial production is recommended.

Evaluation Studies as Topic↗
PubMed1979

[Cardiotocography -- proposal of system solution (author's transl)].

A system solution with new technical details and new demands on space distribution is proposed for the use of antenatal cardiotocography and cardiotocographic monitoring of labour. Bedside equipment will be reduced and widely shifted to a centralised control room by introduction of the system. All installations are of high flexibility to leave room for future developments in medical engineering and for necessary services. -- Large-scale use of the new technique with capacity utilisation of the hardware involved will be ensured by appropriate upgrading of labour room personnel as well as by techno-organisational improvement of work and minimisation of expenses on diagnosis and monitoring. The measures proposed work according to expectation and lead to good perinatological results.

Female↗
PubMed1977

[Injury hazards in deliveries using the Shute forceps (analysis of 1016 forceps deliveries)].

Report about 1016 deliveries by means of the parallel forceps (W. B. Shute). This group contains pathologic-anatomical results of 30 stillbirthes or died newborns. Accordingly to the classification in subarachnoidal, subependymal or subdural hämorrhage there are only in two cases signs of obstetrical brain damage. The hypoxia is the most important reason of intracraniale haemorrhage. In order to an objektive indication, without progredient signs of fetal hypoxia the extraction by means of parallel forceps is not dangerous. We have used the instrument for extraction as well term as preterm infants with good results.

Adult↗
PubMed1976

[Automatic tocography using the Cardiff infusion system under cardiotocographic control with the fetal monitor BMT 504].

Clinical results of the induction of labour by means of the Cardiff-equipment. The fetal monitor BMT-504 (VEB Kombinat Mebgerätewerk Zwönitz) has been used as cardiotocographic control unit. Labour has been induced with oxytocin (n = 38) or methyloxytocin (n = 30). 50 deliveries, which where induced by means of intravenous oxytocin infusion enables to be comparate the results. Using the automatic infusion the average induction-delivery interval was 4 hours 14 minutes, the average dosage of tocergic drugs was 2 IW oxytocin or 20 mug methyloxytocin. Using oxytocin for labour induction we found an increase in obstetric operative frequency caused by fetal distress. There where an increase in basal tone of uterine activity in this patients. Therefore we recommend methyloxytocin for the labour induction of high risk pregnancies. The safety factors, which are incorporated in the Cardiff-equipment have many advantages in obstetrical routine work, to determine fetal distress at an earlier stage. The results presented show that with this automatic infusion system labour can induced with even greater efficiency and safety. The equipment is very useful in accordance to the continuous increasing number of planned deliveries.

Female↗
PubMed1976

[The significance of fetal electroencephalography for the diagnosis of fetal disorders].

In typical cardiotocographic and bloodgasanalytic changes indicating fetal hypoxia the fetal electroencephalography shows frequency slowing, voltage suppression and spike activity. This EEG tracings simultaneously appeared with first cardiotocographic signs of fetal distress. It was not possible to recognize disturbances of fetal oxygenation in an earlier stage by EEG monitoring. Fetal EEG is of difficult technique and interpretation. In so far cardiotocography is of higher security, sensibility and easier handling for fetal monitoring. With regard to future improvements in electroencephalographic techniques it seems possible to get additional and more accurate informations for fetal monitoring and about perinatal morbidity.

Diazepam↗
PubMed1976

[Comparative studies of the value of impulse-reception methods of prenatal cardiotocography].

102 pregnant womens have been controlled by means of the various three methods of the antenatal CTG (phonocardiography, ultrasonography and indirect fetal ECG) between the 22th to 41th week. The registered time for each method was ten minutes. Between the 27th to 33th week of the pregnancy the ultrasonography gives the best results. The phonocardiography gives after the 32th week, especially after the 37th week, increasing technical unobjectionable tachograms. There was a good tachografic performans between the 22th to 27th week and after the 35th week by means of indirect fetal ECG. Between the 27th and 34th week this method refuses. The interpretation of indirect fetal ECG or phonocardiotocography, if they are possible, shows clear advantages in antenatal diagnostic of fetal condition.

Echocardiography↗
PubMed1975

[Cardiotokography, obstetrical decission, and perinatological results].

For clinical use we divide the cardiotocographic parameters in 4 groups with the following percentages for antenatal or intranatal period. Normal criterias (antenatal: 80%; intranatal: 40%) Warn symptoms (antenatal: 5%; intranatal: 10%) Umbilico-placental circulatory disturbances (antenatal: 6%; intranatal: 45%) Signs of hypoxia (antenatal: 9%; intranatal: 5%). Variable decelerations are typically for disturbances in the umbilico-placental circulation. The clinical reasons are as well cord compressions as uterine hyperactivity or supine hypotensive syndrom. A prospective management of labor is possible only by means of CTG. The fetal death during labor is avoidable. The number of fetal micro-blood-samplings was reduced (in our hospital 10%) and the feto-maternal relationship was included. The operative frequency is the result of objective obstetrical decisions. We have before and after introduction of fetal monitoring a constant frequency of caesarean sectio of about 3%. A rise in operative frequency simultaneously with the beginning of fetal monitoring is due by a high operative activity in cases of umbilico-placental circulatory disturbances. The rate of neurological findings in newborn infants can be decreased. This result is not valid in preterm or small for date infants.

Asphyxia Neonatorum↗
PubMedDate not supplied

Histochemical evaluation of placental angiotensinase A in pre-eclampsia: enzyme activity in villous trophoblast indicates an enhanced likelihood of gestational proteinuric hypertension.

The aim of this study was to examine whether differences in placental angiotensinase A (glutamyl aminopeptidase, EC 3.4.11.7) activities occurred in hypertensive complications of pregnancy compared with uncomplicated pregnancies. Biochemical and semiquantitative histochemical methods were used and compared for their applicability. Angiotensinase A activity was detected using L-alpha glutamyl-4-methoxy-2-naphthylamide (alpha-Glu-MNA) as substrate and Fast Blue B salt for simultaneous azo-coupling in cryostat sections of placental tissue samples from 32 patients with pre-eclampsia, 11 patients with pregnancy-induced hypertension and 44 participants with uncomplicated pregnancies. The graduated intensity of reaction product in the villous trophoblast and in fetal blood vessels was evaluated semiquantitatively in a double-blind study by light microscopy (semiquantitative score method). Score levels were related to relative frequencies of hypertensive disorders (proportional odds model) and correlated to the severity of gestational hypertension (Spearman's rank correlation). After detection of enzyme activity, the same tissue samples were homogenized and used for kinetic fluorometric measurements under the same substrate and buffer conditions as in enzyme histochemistry. Enhanced villous trophoblastic angiotensinase A activity was significantly associated with an increased frequency of pre-eclampsia in pregnant women (cumulative odds ratio x 0(1) 6.37; P < 0.001) and showed significant correlations with the severity of gestational hypertensive disorders, represented by systolic (r = 0.31; P < 0.05) and diastolic (r = 0.34; P < 0.05 blood pressure and by concomitant proteinuria (r = 044; P < 0.01). Histochemical evaluation of fetal blood vessels and biochemical measurements revealed no statistically significant results. In conclusion this study demonstrates for the first time that increased villous trophoblastic angiotensinase A activity indicates an increased likelihood of the presence of pre-eclampsia and the severity of hypertensive disorders in pregnancy.

Adult↗
PubMedDate not supplied

Prenatal diagnosis of isolated foramen ovale obstruction. A report of two cases.

Premature obstruction of the foramen ovale is a rare but serious clinical entity. Obstruction can be associated with right ventricular failure, fetal hydrops, tricuspid regurgitation, left heart obstructive defects and supraventricular tachycardia. In most cases, the diagnosis is made at the postmortem examination. The etiology is unknown. We discuss 2 prenatal cases with the sole diagnosis of ventricular asymmetry. The right ventricle was dilated and hypertrophic, and the foramen ovale ballooned into the left atrium without color Doppler detection of right-to-left flow. After delivery, the infants had no hydrops or symptoms of cardiac or respiratory distress. Echocardiography demonstrated a structurally normal heart with increased right ventricle dimensions until the 7th day of life. Delivery should be induced if possible in cases of foramen ovale obstruction with signs of cardiac decompensation.

Echocardiography↗
PubMedDate not supplied

[Management of premature rupture of fetal membranes in obstetrical departments in Germany].

Since the treatment of premature ruptures of membranes is not only controversial in the German but also in the international literature, we performed a survey of all obstetrics departments in Germany. From a total of 843 hospitals, 444 questionnaires were returned for evaluation (52.7%). The purpose was to determine which diagnostic and therapeutic regimes are used and how these agree with the literature. In addition to questions on the type of hospital, birth rates with a percentage of premature births and applied diagnostic parameters, our special interest focused on therapy, particularly with regard to prophylactic antibiotic application, tocolytic treatment and lung maturity induction. Prophylactic antibiotics are used in 36.7% and prophylactic tocolytic therapy in 41.7% of the departments. Interestingly, lung maturity induction was performed in 93.5%, in part even before the 28th week of pregnancy, although the effect of this therapy has not yet been proven at a very early stage of gestation. Due to the different views in the literature and, in part, a lack of basic scientific data, it seems there is a preference for the procedure, in which the best personal experience has been made. Because premature ruptures of the membranes is responsible for 30-40% of premature births, it is urgently necessary to clarify this controversial problem by large multicenter studies so that the treatment of early premature ruptures of the amnion can be founded on a rational basis.

Antibiotic Prophylaxis↗