Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective To define the normal ranges of umbilical cord blood oxygen saturation (SaO2) and acid-base status at birth and to evaluate the effect of gestational age on cord blood values in vigorous newborn infants following spontaneous vaginal birth from a vertex position.Design Prospective study.Setting Department of Obstetrics and Gynaecology, University of Graz, Austria.Sample Cord blood samples from 1281 vigorous newborn infants.Methods Cord blood sampling was performed following on newborn infants following spontaneous vaginal birth in a vertex position. SaO2 was measured directly by a spectrophotometer and pH, base excess, pCO2 and pO2 by a pH/blood-gas analyser. Infants with a 5-minute Apgar score ≥ 7 were considered vigorous. Subgroups were classified according to the gestational age: preterm, term and postterm (〈 37, 37–42 and 〉 42 weeks, respectively).Results The median umbilical artery SaO2 was 24.3% and the 2.5th centile was as low as 2.7%. The median umbilical artery values were pH = 7.25, base excess =−4.3 mmol/L and pO2= 16 mmHg. The 2.5th centiles were 7.08, −11.1 mmol/L and 5 mmHg, respectively. The median umbilical artery pCO2 was 50 mmHg and the 97.5th centile was 75 mmHg. The mean umbilical artery and vein SaO2 values were not significantly influenced by gestational age. The umbilical artery SaO2 and base excess values were strongly skewed. The mean umbilical artery pH values in preterm infants were higher than in other subgroups. The mean umbilical artery and vein base excess values were lower in post-term newborn infants than in other subgroups.Conclusions The physiological range of oxygen saturation in umbilical cord of vigorous newborn infants at birth is wide and skewed. In contrast to pH and base excess, umbilical cord blood oxygen saturation is not influenced significantly by gestational age at birth.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1437-3262
    Keywords: Key words Structural units ; Structure evolution ; Periadriatic Lineament ; Pannonian Basin ; Hungary ; Slovenia ; Croatia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Due to the political boundaries between the Central European countries, on one hand, and the thick Tertiary cover in the Pannonian Basin, on the other, the eastward continuation of the Alpine and Dinaridic units has been ambiguous and poorly documented. Based on comparative analyses, the aim of the present paper is to define the pre-Tertiary structural units in the junction area of the Alpine, Dinaridic, and Pannonian regions, in the SW part of the Pannonian Basin, and to draw conclusions on the continuation of the Alpine and Dinaridic units. According to diagnostic characteristics of the Periadriatic Lineament system, the Balaton Lineament system may be considered as its direct eastern continuation. North of the Periadriatic–Balaton Lineament system, the Transdanubian Range Unit, due to its pre-Tertiary paleogeographic setting, shows mainly South Alpine facies relations; however, its present structural position is identical to that of the Upper Austroalpine nappes. Between the Periadriatic–Balaton and Zagreb–Zemplin Lineament systems heterogeneous structural units are juxtaposed, forming the Sava Composite Unit. In the northern part of this composite unit non-metamorphosed nappes occur which can be considered the eastern continuation of the South Alpine units. These nappes are overthrust onto Internal Dinaridic units in the Tertiary. The Zagreb–Zemplin (Mid-Hungarian) Lineament separates the Sava Unit from the Tisza Unit showing close affinity to the Tethyan margin of the Eurasian plate during the early stage of the Alpine evolution.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 42 (2000), S. 368-370 
    ISSN: 1432-1920
    Keywords: Key words Decompression illness ; Caisson disease ; Spinal cord ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of decompression illness in which the patient developed paraparesis during scuba diving after rapid ascent. MRI of the spine revealed a focal intramedullary lesion consistent with the symptoms. The pathophysiological and radiological aspects of spinal decompression illness are discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Herzschrittmachertherapie & Elektrophysiologie 11 (2000), S. 102-109 
    ISSN: 1435-1544
    Keywords: Key words Heart rate variability – myocardial infarction –¶risk stratification – sudden cardiac death ; Schlüsselwörter Herzfrequenzvaraiabiltät – Myokardinfarkt –¶Risikostratifizierung – plötzlicher Herztod
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Hintergrund: In der Risikostratifizierung für einen PHT bzw. das Auftreten eines arrhythmogenen Ereignisses nach AMI wurden bisher eine hohe Spezifität und ein hoher negativ prädiktiver Wert durch Kombination mehrerer Methoden erreicht. Sensitivität und positive Prädiktion sind jedoch weiterhin nicht ausreichend. Eine dieser Methoden ist die Messung der HRV, die als unabhängiger Prädiktor eines solchen Ereignisses gilt. Sie wird genutzt, um einen schnellen Überblick über den Zustand des autonomen Nervensystems zu bekommen, wird jedoch insbesondere in der Kardiologie bisher nur aus dem 24-Stunden-Langzeit-EKG bestimmt.¶   Studienziel: Die Kurzzeitmessung der HRV bei Postinfarktpatienten als ergänzende Methode zur Risikostratifizierung soll untersucht werden.¶   Methode: Wir führten bei 158 Patienten 11±5 Tage nach AMI eine 5-minütige EKG-Messung in Ruhe und unter parasympathischer Stimulation mittels eines getackteten Atemmanövers durch. Die Messungen wurden unmittelbar und nach einer Woche wiederholt. 87 Patienten erhielten zusätzlich ein 24-Stunden-Langzeit-EKG.¶   Ergebnisse: Der Vergleich zweier aufeinanderfolgender Messungen eines Patienten zeigte Pearsons-Korrelationskoeffizienten zwischen 0,87 und 0,95. Im Vergleich Kurzzeit-/Langzeitmessung ergaben sich lediglich für die Ruheparameter befriedigende bis gute Korrelationen, nicht jedoch für die den Parasympathikus repräsentierenden Parameter. Keine Korrelation fand sich zwischen HRV und Alter, ebensowenig für die Messung unter parasympathischer Stimulation für die HRV und dem Vorliegen eines Diabetes mellitus.¶   Schlussfolgerungen: Die Kurzzeitmessung der HRV liefert bei exzellenter Reproduzierbarkeit zuverlässige Aussagen über die Balance des autonomen Nervensystems. Nach Definierung von Grenzbereichen und Evaluierung an einem Hochrisikokollektiv steht eine schnelle und einfache Methode als weiterer Baustein zur Risikostratifizierung nach Infarkt zur Verfügung und ermöglicht auch die Beurteilbarkeit von Diabetikern.
    Notes: Summary Background: High specifity and high positive prediction have been reached in risk stratification for SCD after AMI by combining multiple methods. However, sensitivity and positive prediction are still not satisfying. One of these methods is the measurement of HRV, established as an independent predictor for SCD. Actually, HRV is used in cardiology, diabetology and neonatology to obtain quick assessment of the present state of the autonomic nervous system.¶   Aim of the study: We studied the short-term measurement of HRV in patients after AMI as an additional method for risk stratification.¶   Method: We performed one measurement over 5 minutes at rest and one with parasympathetic stimulation by regularized breathing in 158 patients 11±5 days after AMI. The measurement was repeated immediately and after one week. 87 patients had an additional Holter ECG.¶   Results: Correlation of two consecutive measurements showed a Pearson‘s correlation coefficient between 0.87 and 0.95. Comparing short- and long-term measurement, only the parameters obtained at rest showed satisfying correlations, but not the parameters representing parasympathetic activity. There was no correlation between HRV and age and, for measurement with parasympathetic stimulation, between HRV and diabetes.¶   Conclusions: Short-term measurement of HRV has an excellent reproducibility and provides reliable information about the balance of the autonomic nervous system. After defining cut-off values and evaluating the method with patients at high risk for SCD, it seems to be a simple and quick method for risk stratification after AMI. Finally, it can also be used for evaluation of patients with diabetes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...