Articles: postoperative.
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Anasthesiol Intensivmed Notfallmed Schmerzther · Mar 2014
[New oral anticoagulantsRegional anaesthesia and new oral anticoagulants].
New oral anticoagulants (NOAC) are increasingly applied after hip and knee replacement and in patients with non-vavular atrial fibrillation. Patients with cardiac disease benefit from regional anaesthesia, especially catheter-provided postoperative pain relief, but are at higher risk for puncture-related haematoma when NOAC are applied simultaneously. ⋯ The respective time intervals are prolonged in patients with renal insufficiency, especially when Dabigatran is applied, until 36 to 72 h. In general, high risk patients with NOAC undergoing surgery benefit from an interdicsciplinary approach and from less traumatic techniques such as spinal anaesthesia or superficial peripheral nerve blocks.
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Although a single dose of etomidate can cause relative adrenal insufficiency, the impact of etomidate exposure on postoperative outcomes is unknown. The objective of this study was to examine the association between a single induction dose of etomidate and clinically important postoperative outcomes after cardiac surgery. ⋯ In this study, there was no evidence to suggest that etomidate exposure was associated with severe hypotension, longer mechanical ventilation hours, longer length of hospital stay, or in-hospital mortality. Etomidate should remain an option for induction of anesthesia in cardiac surgery patients.
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Tranexamic acid (TXA) is commonly used to reduce blood loss in cardiac surgery and in trauma patients. High-dose application of TXA is associated with an increased risk of postoperative seizures. The neuronal mechanisms underlying this proconvulsant action of TXA are not fully understood. In this study, the authors investigated the effects of TXA on neuronal excitability and synaptic transmission in the basolateral amygdala. ⋯ This study clearly demonstrates that TXA enhances neuronal excitation by antagonizing inhibitory GABAergic neurotransmission. The results provide evidence that this effect is mediated via postsynaptic mechanisms. Because GABAA receptor antagonists are known to promote epileptiform activity, this effect might explain the proconvulsant action of TXA.
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Acta Anaesthesiol Scand · Mar 2014
Randomized Controlled TrialThe efficacy of adductor canal blockade after minor arthroscopic knee surgery - a randomised controlled trial.
Adductor canal blockade (ACB) has been demonstrated to be effective in the treatment of post-operative pain after major knee surgery. We hypothesised that the ACB would reduce pain and analgesic requirements after minor arthroscopic knee surgery. ⋯ No significant analgesic effect of the ACB could be detected after minor arthroscopic knee surgery with a basic analgesic regimen with acetaminophen and ibuprofen, except from a minor reduction in immediate requirements for supplemental opioids. Clinicaltrials.gov Identifier: NCT01254825.