PubMed · 8042750
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A P Lake. 1994. Maternal mortality.. https://doi.org/10.1111/j.1365-2044.1994.tb14260.x
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We evaluated a new method of assessing sensory block after spinal anaesthesia using a fine gas jet and compared it with other established methods. The gas jet method was used to test the block before and after surgery and was found to compare favourably with pin-prick (median difference 0 and 0 dermatomes) and ethyl chloride (median difference 0.5 and 1.0 dermatomes) but less well with cotton wool (median difference -2.0 and -2.0 dermatomes).
UNLABELLED: Because of the constant threat of emergent cesarean delivery, anesthetic induction and resuscitation drugs are often drawn into syringes and stored in the obstetric operating room (OR). This study investigated the potential for bacterial and fungal contamination of six drugs (thiopental, succinylcholine, ephedrine, atropine, lidocaine, and oxytocin) often prepared in the obstetric OR. A total of 756 drug syringes were prepared and stored in the obstetric OR for 8 days using normal clinical practices. Starting on Day 0, and subsequently on Days 4 and 8 of the experiment, 42 syringes of each drug were randomly selected from the pool, filtered through a 0.45-microm porosity sterile cellulose filter, and cultured on 5% sheep blood agar. Of the 756 syringes tested, none grew organisms of any type, which indicates a probability of drug sterility of > or = 0.9961 (95% confidence interval [CI]). The data from the cultures performed on syringes on Day 0 indicate a probability of initial contamination of < or = 0.018 (95% CI). This study demonstrates a high probability of sterility in drugs drawn into sterile syringes and stored at room temperature in an OR environment for up to 8 days. IMPLICATIONS: Drug syringes stored in emergency operating rooms are discarded after 24 h because of possible contamination. We searched for microorganisms in drug syringes stored in the operating room for up to 8 days. No microbes were detected using standard sterility testing techniques. Adopting longer storage periods could result in significant cost savings.
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