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PubMed2002

[Anesthesia and analgesia of small mammals. Part 1: Preparation, premedication and general anesthesia].

In today's society small rodents and rabbits are increasingly kept as pets. Anaesthesia is necessary for numerous reasons and proves to be a challenge for many veterinarians. Following surgical intervention analgesia is frequently neglected. This article reviews the preparation of small mammals for anaesthesia, the choice of anaesthetics and the possibilities of perioperative care including monitoring, complications, fluid therapy and analgesia.

Analgesia↗
PubMed1991

[O2 uptake and CO2 production during total intravenous propofol-alfentanil anesthesia under steady-state conditions. Is O2 uptake a parameter for assessing the depth of anesthesia?].

Depending on surgical and anaesthesiological procedures, anaesthesia leads to a reduction of O2 uptake (VO2), CO2 production (VCO2) and resting energy expenditure (REE). A controversial discussion on the degree of metabolic depression has continued in the literature fueled by a lack of studies in patients under standardised conditions. The goal of this study was to evaluate whether O2 consumption and/or CO2 production can be correlated to various depths of anaesthesia and whether VO2 could be a parameter to control narcosis. 12 patients (ASA I-II) scheduled for urological surgery of the lower abdomen, were given total intravenous anaesthesia with propofol and alfentanil. During a 60 minutes period the patients were first anaesthesized with an ED50 and then titrated to a dosage correlating with an ED95. The premedicated but awake patients each showed a REE which was about 10% below the calculated basal metabolism. Steady-state general anaesthesia led to an approximately 30% reduction of VO2, VCO2 an REE. Patients with adequate anaesthesia revealed no changes in oxidative metabolism with increased or decreased depth of anaesthesia. VO2 as a leading parameter proves to be problematic. It is useful as a measure for insufficient depth of general anaesthesia but fails to indicate overshooting anaesthesia depth.

Adult↗
PubMed1998

[Economic aspects of anesthesia. II. Cost control in clinical anesthesia].

The primary scope of economic analyses is the quantification of the costs (input) in relation to the results (outcome, output). According to whether a similar or different dimension of outcome parameters is chosen, it is possible to differentiate between cost minimisation, cost effectiveness, cost benefit and cost utility analyses. Decision trees and sensitivity analyses serve to develop or examine cost outcome studies. The principal perspective of economic analysis is of crucial significance. In the present overview of cost control programmes in clinical anaesthesia, the perspective chosen throughout is that of budget responsibility in a department of anaesthesiology. With regard to economic factors in clinical anaesthesiology, the cost of medical and nursing staff represents the largest cost block. It is, therefore, essential that personnel is efficiently employed, i.e. how the perioperative procedure is organised. In the area of material costs, blood products--including coagulation factors and plasma substitutes--are particularly cost intensive, followed by medical products and drugs, especially muscle relaxants and inhalational anaesthetics. In the perioperative context, the costs of anaesthesia personnel account for 5-15% of the total costs of patient care, while material costs account for 2-10%. In view of this small portion of the total costs, cost control programmes in anaesthesia can only make a relatively small contribution to reducing overall cost. However, it must be realised that anaesthesia care is vitally important for the perioperative process which means that in this context cost-effectiveness interventions have consequences that also affect other fields, e.g. postoperative pain service besides anaesthesia. In conducting economic analyses, cost considerations or reductions cannot be targeted alone, but must always also integrate outcome aspects so that costs and quality are regarded in relation to one another.

Anesthesia↗