Probable case of vascular air embolism during endonasal CO2 laser surgery.

Laser surgery in narrow luminal cavities can lead to venous air embolism (VAE) due to high pressure or high flow clearing/cooling systems. We report the first case of initially misdiagnosed VAE during endonasal CO(2) laser surgery. A 56-year-old patient underwent uvulopalatopharyngoplasty and septoplasty with bilateral CO(2) laser turbinoplasty for turbinate hypertrophy and uvula deviation.

[Premedication with intranasal midazolam in children of various ages].

Background And Aim: To evaluate the efficacy of premedication with midazolam (mdz) administered using a nasal route compared to diazepam (dz) administered by mouth in children of different ages.

Experimental Design: A comparative type study was performed in randomly selected pediatric patients undergoing surgery. The study lasted 3 months.

Rhabdomyolysis and operating position.

Rhabdomyolysis during routine surgery was studied in three groups of patients who had surgery, with limited trauma to muscle, in the lateral and supine positions, and prone on the spinal frame. A range of blood tests was performed (before surgery, and on the first, third and seventh day after operation). These showed that a creatine kinase increase in the 24 hours and the early appearance of myoglobin in the serum were the best indicators.

[Mathematical approach to the study of the capnographic curve].

An application of Hill's formula in the interpretation of slope of second phase of capnographic curve is suggested. This method can be used to demonstrate an acute rising of airway resistances, but failed to discriminate between normal and chronically broncho-pulmonary obstructed subjects. We suggest that a study of modifications of second phase slope and Q angle can give more information about airway resistances.