International journal of obstetric anesthesia
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Int J Obstet Anesth · Feb 2021
Randomized Controlled TrialLow-dose intravenous dexmedetomidine reduces shivering following cesarean delivery: a randomized controlled trial.
Intravenous dexmedetomidine 30 µg reduces shivering after cesarean delivery but can result in sedation and dry mouth. We hypothesized that prophylactic administration of 10 µg of IV dexmedetomidine would reduce the patient-reported severity of shivering after cesarean delivery, without an increased incidence of side effects. ⋯ Prophylactic administration of intravenous dexmedetomidine 10 µg after delivery reduces shivering without notable side effects.
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Int J Obstet Anesth · Feb 2021
Randomized Controlled Trial Multicenter StudyGeneral anesthesia for cesarean delivery and childhood neurodevelopmental and perinatal outcomes: a secondary analysis of a randomized controlled trial.
In 2016, the U.S. Food and Drug Administration expressed concern that neurodevelopment may be negatively affected by anesthesia or sedation exposure in pregnancy or before three years of age. We examined the association between general anesthesia at the time of cesarean delivery and early childhood neurodevelopment. ⋯ General anesthesia for cesarean delivery was not associated with overall neurodevelopmental delay at two years of age, except for greater odds of severe motor delay. Future studies should evaluate this finding, as well as the impact on neurodevelopment of longer or multiple anesthetic exposures across all gestational ages.
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Int J Obstet Anesth · Feb 2021
The incidence of dry chlorhexidine gluconate transfer from skin to surgical gloves: a simulation and in vitro study.
To prevent alcohol-based chlorhexidine from reaching the cerebrospinal fluid, it is recommended that the antiseptic solution be allowed to dry before skin palpation or puncture. However, no guidelines specify a drying time interval. Manufacturers recommend 3 min of air drying, based upon the isopropyl alcohol component. Therefore, to fill this knowledge gap, we designed a simulation study to investigate the incidence of primary chlorhexidine transfer from skin to gloves following three drying time intervals. We also investigated the incidence of secondary chlorhexidine transfer from gloves to another surface following one drying time interval. ⋯ Gloves are routinely contaminated with chlorhexidine during central neuraxial blockade. The high incidence of secondary transfer in our simulation suggests a pathway by which chlorhexidine may gain access to the neuraxial space.
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Int J Obstet Anesth · Feb 2021
ReviewA systematic review of the association between postpartum depression and neuraxial labor analgesia.
Postpartum depression (PPD) is the most common complication after childbirth, affecting 10-15% of women. It is associated with serious long-term consequences for the mother and family. Whether or not neuraxial labor analgesia mitigates the risk is uncertain and controversial. The purpose of this review was to summarize studies investigating the association between neuraxial labor analgesia and the incidence of PPD. ⋯ Our systematic review did not find compelling evidence for an association between PPD and labor analgesia. Studies were heterogenous in nature and had a high risk of bias. Further research controlling for confounding factors is recommended to determine if a relationship exists.
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Int J Obstet Anesth · Feb 2021
A prospective, up-down sequential allocation study investigating the effectiveness of vital capacity breaths using high-flow nasal oxygenation versus a tight-fitting face mask to pre-oxygenate term pregnant women.
The role of high flow nasal oxygenation (HFNO) for pre-oxygenation before obstetric general anaesthesia remains unclear. This study aimed to determine the number of vital capacity breaths using HFNO required to pre-oxygenate 90% of parturients to an end-tidal oxygen concentration fraction (FETO2) of ≥0.90 (termed EN90). ⋯ Face mask pre-oxygenation is more effective at achieving EN90 compared with to HFNO within a clinically acceptable number of vital capacity breaths. Further studies are needed to determine the role of HFNO in optimising the time before desaturation and for apnoeic oxygenation in term parturients.