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Biomedical subjects

P Bareille

Publications and source records attributed to P Bareille.

5 recordsLinked to original sources
PubMed1988

[Constant-flow drug administration in anesthesia].

The authors describe a technique of constant flow perfusion of several anaesthetic drugs, using a simple formula to adjust the perfusion rate to the weight of the patients. Calculation of dilutions is easy: the drug concentration is equal to ten times the rate, per hour and per kg, in practical cases. The flow rate is then a tenth of the patient's weight. This method is easy to apply to several drugs, of which pharmacokinetic parameters justify this administration mode: alfentanil, etomidate, vecuronium bromide... but clinical and instrumental observations should be taken into account for the adjustment of the flow.

Alfentanil↗
PubMed1986

[Interaction between electrocautery and a pacemaker].

Following a new case of inhibition of a sentinel pacemaker by the cutting current of an electrocoagulator during endoscopic urologic surgery, the mechanism of this complication is recalled. The non-selectivity of the pacemaker detector circuit is responsible for interpreting the electrical disturbances due to the electrocoagulator as cardiac activity. The problems seen with other types of stimulators are discussed, especially programmable stimulation where the use of a magnet can lead to variations in the stimulator frequency. The stimulating wire can also be responsible for accidents, such as myocardial burns, and rhythm disturbances. The safety rules for the use of the electrocoagulator in patients with a non programmable sentinel pacemaker.

Aged↗
PubMedDate not supplied

[Use of vecuronium bromide administered at a constant rate during renal transplantation].

The authors describe a technique of vecuronium bromide perfusion at constant flow used to obtain curarisation during 50 renal transplantations. The muscular effects of the drug were monitored through an electromyographical recorder, so as to adjust the perfusion rate. The dose of vecuronium bromide was 47.7 +/- 0.74 micrograms X kg-1 X h-1 (mean +/- SEM), this being lower than the dose recommended by D'Hollander (60 micrograms X kg-1 X h-1) for patients with normal renal function. Furthermore, no recurarisation was observed. Therefore, vecuronium can be considered as a satisfactory muscle relaxant in patients with renal failure, but neuromuscular monitoring appears to be a most important safety factor.

Adult↗
PubMedDate not supplied

[Induced normovolemic hemodilution. Calculation of the amount of blood to be withdrawn].

The authors study the variation of the hematocrit during a provoked normovolemic hemodilution. To get a predetermined hematocrit rate they use a simple and original biophysical model which gives the exact blood volume to be extracted. Then they use the same method to evaluate the hematocrit of the extracted blood after its conditionnement in packs.

Hematocrit↗