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Biomedical subjects

H Albrecht

Publications and source records attributed to H Albrecht.

At least 163 records · Page 9Linked to original sources
PubMed1976

[Investigations on the distribution, cause and prevention of early perinatal morbidity (author's transl)].

These investigations were designed to detect causes of early perinatal morbidity in order to develop methods to decrease the perinatal morbidity in our unit. From October 1972 to December 1974 the most important antenatal, intrapartum and postpartum data on 2210 deliveries were coded. In 98% of the cases continuous fetal monitoring was performed. To detect early perinatal morbidity the acid base balance of all deliveries was measured from the umbilical vessels and the Apgar rating was determined at 1,5 and 10 minutes. The data show that a further decrease of the incidence of acidosis and low apgar scores is only possible in a limited way. Of the 13% deliveries with pH values of/or less than 7.15 or Apgar scores of/or less than 6 at 1 minute, only 5% appeared to be avoidable in this retrospective study. The incidence of severe acidosis decreased from 2.3% in 1972 to 1.3% in 1974. A comparison of the years 1973 and 1974 showed an improvement. Apgar scores of 6 or less at one minute decreased from 16 to 10% and severe acidosis with pH values of less than 7.10 decreased from 2.7% to 1.8%. In vaginal operative deliveries, the incidence of severe acidosis was reduced from 8.5% to 1.1%.

Acidosis↗
PubMed1975

Some remarks concerning the fetal heart rate total dip areas.

It was ascertained whether the sum total of the dip areas 60 minutes prior to delivery is an evaluating parameter for judging the fetal state. The cardiotokograms of 62 deliveries with a normal newborn state (newborn index 1) and forty with a pathological newborn state (newborn index 2 and 3) were digitally computer [5]. By proper programming numerous decriptive dip parameter can be determined, e.g. the amplitude, duration, area, lag time, recovery time, fluctuation before, within, and after the dip. The sum total of the dip areas was calculated from the CTG 60 minutes before delivery. Only cardiotokograms with at least two decelerations were included. The pathological newborn group has a larger mean sum total of dip areas than the group with a normal index (Fig. 1). This difference, however, is not significant. Mean values were calculated for other descriptive parameters, e. g. dip fluctuations, lag time, dip amplitude etc. These also differ only slightly between the two groups. (Fig 2). Hence they give no satisfactory decription of the fetal state. By including several dip parameters simultaneously [7] an evaluating parameter can be determined for both decelerations. The various descriptive parameter are given different weights and are added up (discrimination analysis). In analogy to the sum total of the dip areas the sum total of the evaluating parameters was calculated. The difference between the two groups with respect to these evaluating parameter sums is significant. (Fig. 3). The sum of total dip areas alone does not appear to be a sufficient FHR parameter for evaluating the fetal state. Evaluation is significantly improved by considering simultaneously several descriptive parameters.

Female↗
PubMed1975

[Critical analysis of a high percentage of caesarean section, particularly with regard to infantile morbidity (author's transl)].

UNLABELLED: In 354 Caesarean section deliveries during 1972 to 1974 the data of history, course of pregnancy, delivery and postoperative period including cardiotocography before and during birth and the condition of the newborn up to the 7th day were analyzed with a computer. RESULTS: In two thirds of the cases three or more risks determined the indication for Caesarean section. Identical combinations of risks were rare. After section the infantile morbidity is higher than after spontaneous delivery. Classification of Caesarean sections according to indication: preventive without fetal distress, with signs of chronic, subacute or acute fetal distress or emergency operation, showed the following distribution: Infantile morbidity is highest after emergency operations, less so in preventive operations with fetal distress, chronic, subacute or acute (38% of all sections). Where there was no fetal distress (62% of all sections), infantile morbidity is the same as after spontaneous delivery. A high percentage of the group with fetal distress and high infantile morbidity shows an increase in pre-or intrapartal risks and prepartal pathologic FHF changes. A reduction in the number of Caesarean sections would be possible only in the group without signs of fetal distress provided that this would not lead to a considerable increase in Caesarean section for fetal distress and infantile morbidity.

Acid-Base Equilibrium↗
PubMed1975

[The effect of lumbar peridural anesthesia with catheter on the maternal and fetal acid-base status and the 1 minute apgar score (author's transl)].

Comparison of 650 deliveries with P.A. and of 928 deliveries without P.A. during the same period. PH from the umbilical artery and 1 minute Apgar score were studied in three groups of patients: 1.) All deliveries, 2.) Spontaneous vaginal deliveries without maternal or fetal risk, 3.) Operative vaginal deliveries. The only significant differences were found among the operative vaginal deliveries: The infants of the peridural group showed a higher incidence of pH-values above 7,2 than those of the non peridural group. Analysis of the maternal acid-base status showed less respiratory alcalosis and less metabolic acidosis in the peridural group. The neonates of this group showed a lower post partum metabolic acidosis than those in the non peridural group.

Acid-Base Equilibrium↗