Nitrous oxide was an anaesthetic gas that was used for many years. There were many anaesthetic drugs in operations  with many side effects. Nitrous oxide had some side effects too. But it was a safe gas in many times. In hospital personnel who worked in operating rooms exposure to this gas was important. The objective of this study was the introduction of nitrous oxide and neurologic side ...

Resting cells of Corynebacterium nephridii reduce nitrate, nitrite, and nitric oxide to nitrous oxide under anaerobic conditions. Nitrous oxide production from nitrite was optimal from pH 7.0 to 7.4. The stoichiometry of nitrous oxide production from nitrite was 99% of the theoretical-two moles of nitrite was used for each mole of nitrous oxide detected. Hydroxylamine increases gas evolution fr...

background & purpose: there are occupational hazards related to nitrous oxide (n2o) in hospitals operating and recovery rooms. these hazards include the decrease of mental performance and audio-visual ability, and reduced fertility, spontaneous abortion and neurological, renal and liver diseases. in this survey, the concentration of nitrous oxide in indoor air of hospitals operating and recover...

Studies of the leucopenic effects of nitrous oxide were made in rodents, with and without surgical wounds. The animals were exposed to one of the following atmospheres: (1) air; (2) 25 per cent nitrous oxide; (3) 60 per cent (rats) or 40 per cent (mice) nitrous oxide; the oxygen percentage was maintained at 21 per cent in each case. A leucopenic effect and suppression of the normal leucocytosis...

background anxiety is an unpleasant experience that may have adverse effects on the process of anesthesia, cesarean delivery, recovery period and postoperative pain. anxiety can also affect maternal satisfaction of the medical cares that provided by the medical team. objectives to compare the effects of inhalational 50% nitrous oxide (n2o) with oxygen on reducing anxiety and pain in parturients...

a 50 year-old man was referred with history of acute ataxia and lower extremity paresthesia 10 days after general anesthesia with nitrous oxide. cervical mri showed long hypersignal lesion in posterior segment of the cord. blood analysis revealed vitamin b12 deficiency. nitrous oxide-induced myelopathy should be considered in patients who develop acute neurological manifestation after general a...

We postulated that nitrous oxide transfer into the pleural cavity can occur by diffusion from the alveoli, independent of vascular transport. Under general anaesthesia, six sheep were studied in two phases, a control and an experimental phase. The sheep were anaesthetized, intubated, and received positive pressure mechanical ventilation. A catheter was placed in the right pleural cavity and 150...

In order to evaluate the direct effect of isoflurane-nitrous oxide and halothane-nitrous oxide anaesthesia on cardiac contractility in 20 adults, we have used a method based on left ventricular end-systolic wall stress (LVESWS) vs velocity of circumferential fibre shortening with corrected heart rate (Vcfc), obtained by transoesophageal echocardiography. We found that LVESWS (index of afterload...

BACKGROUND Inhalational induction with sevoflurane and nitrous oxide is frequently used for Laryngeal Mask Airway (LMA; Laryngeal Mask Company, Henley-on-Thames, United Kingdom) insertion in children. The authors determined the influence of nitrous oxide on the minimum alveolar concentration (MAC) of sevoflurane for LMA insertion. METHODS One hundred twenty unpremedicated children (age, 1-9 y...

PURPOSE This study examined the clinical effects of nitrous oxide conscious sedation on children. METHODS Fifty-nine healthy children (ages 4 to 13, mean age=7.7 yrs.) requiring dental restorative treatment with nitrous oxide sedation were studied. The behavior and clinical effects were assessed before and 5 minutes after 50% nitrous oxide sedation. In addition, the children were instructed t...