Anaesthesia
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Randomized Controlled Trial Comparative Study
The analgesic effects of intrathecal morphine in comparison with ultrasound-guided transversus abdominis plane block after caesarean section: a randomised controlled trial at a Ugandan regional referral hospital.
What did they do?
The researchers randomised 130 women to 10 mg intrathecal hyperbaric bupivacaine plus an ultrasound-guided TAP block, or to 10mg intrathecal hyperbaric bupivacaine with 100 mcg morphine, plus a sham TAP block.
And they found
There was no difference between either group for satisfaction, analgesia or adverse effects. They concluded that in the context of intrathecal morphine availability, there is no benefit from TAP block, although TAP block can produce comparable analgesia if IT morphine is not used.
What’s particularly interesting...
Unlike the majority of obstetric anaesthesia research, this study comes from the same environment that also manages the bulk of global deliveries: low and medium income countries.
It is also an important reminder that not only are techniques used in wealthier countries applicable and translatable to lower-resource settings, but so is high quality research – and as with all research, context is everything.
summary -
Indications for using supraglottic airway devices have widened over time and they now hold a prominent role in guidelines for difficult airway management. We aimed to describe the use of supraglottic airway devices in difficult airway management. We included adult patients undergoing general anaesthesia registered in the Danish Anaesthesia Database from 2008 to 2012 whose airway management had been recorded as difficult, defined as: ≥ 3 tracheal intubation attempts; failed tracheal intubation; or difficult facemask ventilation. ⋯ Supraglottic airway devices were used or use was attempted in 607 cases of difficult airway management (12.4% (95%CI 11.5-13.3%)), and were successful in 395 (65.1% (95%CI 61.2-68.8%)) cases. In 'cannot intubate, cannot facemask ventilate' situations, supraglottic airway devices were used in 86 (18.9% (95%CI 15.6-22.8%)) of 455 records and were successful in 54 (62.8% (95%CI 52.2-72.3%)) cases. We found that supraglottic airway devices are not widely used in the management of the difficult airway despite their prominent role in difficult airway management guidelines.
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Peri-operative anaemia is a significant risk factor for morbidity and mortality. Anaemia during pregnancy is associated with adverse maternal and neonatal outcomes, and postpartum haemorrhage remains a leading cause of maternal mortality worldwide. Caesarean section is an operation incurring moderate risk of bleeding, and rates are rising globally. ⋯ The definition of anaemia has significant clinical implications, particularly for peri-operative management of women undergoing caesarean section. In addition, we should differentiate between lower reference values and optimal haemoglobin targets. The haemoglobin level associated with optimal obstetric and neonatal outcomes requires further investigation in pregnant women.