Brazilian journal of anesthesiology (Elsevier)
-
Comparative Study
Comparison of the effect of sevoflurane and propofol on oxygenation during gradual transition to one-lung ventilation.
It is known that hypoxic pulmonary vasoconstriction increases as a result of intermittent regional hypoxic challenges. The aim of this study was to compare the effects of sevoflurane and propofol on oxygenation and shunt fraction during one-lung ventilation in a novel model of hypoxic preconditioning before one-lung ventilation. ⋯ The similar effects of sevoflurane and propofol on PaO2 during one-lung ventilation following hypoxic preconditioning may be due to other causes beside the inhibition of hypoxic pulmonary vasoconstriction. Gradual transition to one-lung ventilation is a novel technique for preconditioning experiments for one-lung ventilation.
-
Venipuncture is one of the most common procedures performed in daily anesthetic practice. Though usually innocuous, peripheral nerve injuries with serious sequelae have been described following venipuncture. We present a case of venipuncture-related lateral antebrachial cutaneous nerve injury, alongside the essential diagnostic and prognostic information for day to day practice. ⋯ Peripheral nerve injuries have been described after venipuncture, but the literature is limited. Nerves in the antecubital fossa classically lie on a plane just beneath, and in close proximity to, the veins, making them susceptible to injury during phlebotomy; also it has been shown that there is a large range of anatomic variation, suggesting that even a non-traumatic, satisfactory venipuncture can directly damage these nerves. Anesthesiologists must be aware of this possible complication, diagnosis and prognostication to adequately counsel patients in the event that this complication occurs.