NOTES ON NITROUS OXID ADMINISTRATION

Nitrous oxide administration and hemodynamics.

EDITORIALS 211 inotropic agents (such as the catecholamines, calcium ions, and digitalis), and paired electrical stimulation. Entropy also increases during congestive heart failure, which may be thought of as an expression of a defect in the utilization of energy, a partial chemicomechanical uncoupling. The entropy of the myocardial cell tends to be reduced by negative inotropic agents, such as...

Notes Automated Analysis of Nitrous Oxide

An antosampler was developed to interface with a gas chromatograph for N2O analyses. The sampler was comprised of a modified fraction collector and pneumatic valves all controlled by a microprocessor unit. Cost of the autosampler system including the fraction collector was estimated to be less than $3500. The sampler was designed to analyze gas samples stored in rubber-stoppered, glass vials. U...

On the Function of Copper in Cytocbrome Oxid-

Nitrous oxide administration using commonly available oxygen therapy devices.

Administration of nitrous oxide is useful for providing sedation and analgesia. The therapeutic range for nitrous oxide is 20-30%. Several oxygen treatment devices have been used for administering nitrous oxide, but little is known about the concentrations of nitrous oxide and oxygen delivered to the trachea. We have studied this, using an analogue lung model, with several oxygen therapy device...

Paradoxical changes in bispectral index during nitrous oxide administration.

I report two patients undergoing open heart surgery, with nitrous oxide and isoflurane anaesthesia, for whom bispectral index (BIS) monitoring showed high BIS values with nitrous oxide and isoflurane anaesthesia. The BIS decreased immediately after nitrous oxide was stopped and increased again after nitrous oxide was restarted.