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
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 45 (1993), S. 147-150 
    ISSN: 1432-1041
    Keywords: Terbutaline ; Bambuterol ; Cerebrospinal fluid ; plasma ; human ; adverse effects®
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Concentrations in cerebrospinal fluid (CSF) and plasma of bambuterol and its active metabolite, the β2-adrenoceptor agonist terbutaline, were measured in man after four once-daily doses of 30 mg bambuterol hydrochloride (Bambec®). Nine patients scheduled for orthopaedic surgery under spinal anaesthesia completed the study. The concentrations of both substances were much lower in CSF than in plasma, the ratio CSF/plasma being 0.09 for bambuterol and 0.19 for terbutaline, at apparent steady state. While the rank order of the ratios was expected from the fractions of unbound bambuterol and terbutaline in plasma, their absolute values were only about 1/6 (bambuterol) and 1/4 (terbutaline) of those predicted from diffusion equilibria between plasma and CSF. Thus, the rates of transport of bambuterol and terbutaline from plasma into the central nervous system appear to be slow relative to transport out of the system, e.g. by outflow of CSF. The findings are in agreement with animal experiments and suggest that bambuterol and terbutaline are less likely than lipophilic β2-adrenoceptor agonists to interact with central receptors.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-1238
    Keywords: Subcutaneous oxygens tension ; Transcutaneous oxygen tension ; Tissue perfusion ; PEEP ; Cardiac output ; Oxygen delivery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective To compare subcutaneous (PscO2) and transcutaneous (PtcO2) oxygen tension measurements in relation to hemodynamic variables at different levels of PEEP, and to evaluate the usefulness of these measurements as monitors of peripheral tissue perfusion. Design Prospective trial. Setting Intensive care unit in a university hospital. Patients Seven patients with gastric cancer who where undergoing total gastrectomy. Interventions Silicone catheter was placed in the upper arm and transcutaneous oxygen monitor was placed on the upper part of the chest. A pulmonary artery catheter was placed in the right pulmonary artery. Measurements and results PscO2 and PtcO2 together with hemodynamic variables were measured at different levels of PEEP. Progressive increase of PEEP reduced cardiac index (CI) (p〈0.05) with a concomitant decrease of PscO2 (p〈0.05) and oxygen delivery (DO2) (p〈0.05). Changes in PtcO2 parallelled changes in arterial oxygen tension (PaO2), but no correlation was found between PtcO2, CI and DO2. Conclusion PscO2 is a sensitive indicator of subcutaneous tissue perfusion, which can be used to identify the PEEP level, with optimum peripheral perfusion. PscO2 seems to be a more reliable indicafor of tissue perfusion than PtcO2.
    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
    Intensive care medicine 1 (1975), S. 129-136 
    ISSN: 1432-1238
    Keywords: Microembolism ; arthroplasty ; lung function ; Xe133 radiospirometry ; IPPB (Intermittent positive pressure breathing) ; epidural anesthesia ; pulmonary blood volume
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary With a Xenon133 radiospirometric technique the regional lung function was evaluated before and after prosthetic hip arthroplasty performed in the lateral decubitus position with either respirator-controlled neuroleptic anesthesia or epidural anesthesia with spontaneous breathing. Regional lung function measured in a supine position 1, 20 and 72-96 hours postoperatively revealed a reduction of the perfusion, ventilation and volume of ventilated alveoli on the dependant lung. The reduction was most pronounced immediately postoperatively, especially following respirator-controlled anesthesia. There was also an increase of pulmonary blood volume and a decrease of total lung volume in this group. The changes of lung function are probably caused by congestive atelectasis, secondary to impaired ventilation of the dependent lung. Peroperatively induced microembolism might have potentiated the effect.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1433-8580
    Keywords: Rat ; Halothane ; Anaesthesia ; Regional blood flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The haemodynamic effects of halothane-N2O/O2 anaesthesia with controlled ventilation were studied in rats, using the microsphere method. Mean arterial blood pressure was significantly reduced but only minor effects on cardiac output (CO), heart rate, and systemic vascular resistance were seen. During anaesthesia, there were significantly increased fractions of CO delivered to brain, lungs, small intestine and liver (hepatic artery), while the fractions to spleen, stomach and carcass were decreased. Fractional distribution and regional blood flow to heart, kidneys, adrenals and preportal area remained unchanged. When anaesthesia was prolonged from 60 to 90 min, no further changes in central or regional haemodynamics were seen. Considering the minor effects on central haemodynamics and the abscense of changes in central and regional haemodynamics at 60 and 90 min, this anaesthesia model should be useful in experimental research.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-5195
    Keywords: Deep vein thrombosis ; Pulmonary embolism ; Total hip replacement ; Preoperative haemodilution ; Dextran 70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'effet antithrombosant d'une hémodilution pré-opératoire par le dextran 70 at été étudié chez 57 malades qui ont subi une arthroplastie totale de hanche pour coxarthrose. Les malades ont été distribués par randomisation en deux groupes; dans l'un, ils ont été soumis au traitement: hémodilution pré-opératoire et dans l'autre, groupe de contrôle, ils ont reçu 500 ml de dextran 70 pendant l'opération et au second jour post-opératoire. L'hémodilution pré-opératoire a été réalisée en remplaçant le sang par le dextran pour réduire l'hématocrite à 25–30. Le sang prélevé a été employé pour compenser l'hémorragie per-opératoire. Dix à 14 jours après l'opération les malades ont été examinés par scintigraphie pulmonaire, radiographie pulmonaire et phlébographie bilatérale. Douze malades ont aussi subi une scintigraphie au Xenon 133. Il n'y a pas eu de différence significative entre les deux groupes en ce qui concerne le développement de thrombose des veines profondes. Par contre le nombre d'embolie pulmonaire a été réduit de façon significative dans le groupe qui a subi l'hémodilution pré-opératoire. Un malade du groupe de contrôle présenta des symptômes cliniques d'embolie pulmonaire et en mourut.
    Notes: Summary The effect of preoperative normovolaemic haemodilution with dextran 70 in 57 patients undergoing total hip replacement for osteoarthritis, was evaluated with respect to the production of thrombosis and pulmonary embolism. The patients were randomly allocated to one group undergoing preoperative haemodilution and one control group receiving 500 ml dextran 70 during operation and again on the second postoperative day. Before operation blood was replaced by dextran 70 to lower the hematocrit to between 25 and 30. The blood drained from the patients was used to replace blood lost at operation. Between 10 and 14 days after operation the patients were examined by perfusion lung scan, chest radiography and bilateral phlebography. Twelve patients also had 133 Xe ventilation scans. The incidence of deep vein thrombosis in the two groups did not differ significantly. Pulmonary embolism was significantly decreased in the preoperative haemodilution group. One patient in the control group had clinical symptoms of, and died from, pulmonary embolism.
    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...