Articles: nerve-block.
-
Randomized Controlled Trial
Comparison of the effect of different volumes ropivacaine on deep serratus anterior plane block in patients undergoing breast surgery: a prospective randomized double-blinded trial.
A larger volume of local anesthetic provides a wider range of blocked sensory but carries a greater risk. The purpose of this trial was to compare the effect of different volumes of ropivacaine injected to deep serratus anterior plane in patients undergoing breast surgery. ⋯ The blocked dermatomes increased with increasing volume when 10, 20 and 30 mL ropivacaine was used for deep serratus anterior plane block. The analgesic effects of 20 and 30 mL were similar to each other and better than 10 mL. Therefore, in breast surgery, volume of 20 mL ropivacaine is considered to be appropriate for deep serratus anterior plane block.
-
Reg Anesth Pain Med · Jun 2021
CommentInvasive placebos in research on peripheral nerve blocks: a follow-up study.
The Serious Harm and Morbidity "SHAM" grading system has previously been proposed to categorize the risks associated with the use of invasive placebos in peripheral nerve block research. SHAM grades range from 0 (no potential complications, eg, using standard analgesia techniques as a comparator) through to 4 (risk of major complications, eg, performing a sub-Tenon's block and injecting normal saline). A study in 2011 found that 52% of studies of peripheral nerve blocks had SHAM grades of 3 or more. ⋯ The use of invasive placebos that may be associated with serious risks in peripheral nerve block research has decreased in contemporary peripheral nerve block research.
-
Reg Anesth Pain Med · Jun 2021
CommentAvoid suboptimal perioperative analgesia during major surgery by enhancing thoracic epidural catheter placement and hemodynamic performance.
Thoracic epidural analgesia (TEA) is an established gold standard for postoperative pain control especially following laparotomy and thoracotomy. The safety and efficacy of TEA is well known when the attention to patient selection is upheld. Recently, the use of fascial plane blocks (FPBs) has evolved as an alternative to TEA most likely because these blocks avoid problems such as neurological comorbidity, coagulation disorders, epidural catheter failure and hypotension due to sympathetic denervation. ⋯ Also, the true efficacy of FPBs is questioned. Thus, should we prioritize less efficient analgesic regimens with FPBs when preventive treatment strategies for epidural catheter failure and hypotension exist for TEA? It is time to promote and underscore the benefits of TEA provided to patients undergoing major open surgical procedures. In our mind, FPBs and landmark-guided techniques should be limited to less extensive surgery and when either neuraxial blockade is contraindicated or resources for optimal epidural catheter placement and maintenance are not available.
-
Journal of anesthesia · Jun 2021
Cervical erector spinae plane block as a perioperative analgesia method for shoulder arthroscopy: a case series.
Shoulder arthroscopy, a common intervention for severe rotator cuff injuries, is associated with severe postoperative pain. Upon performing cervical erector spinae plane (ESP) blocks at the C7 TP (tip or posterior tip) or the posterior tip of the C6 TP posterior tubercle in six patients undergoing shoulder arthroscopy, sensory block was detectable in congruent cervico-thoracic dermatomes. Effective intraoperative and postoperative analgesia were consistently obtained for all six patients. This preliminary study illustrated that the cervical ESP block can be considered a potential simple regional anesthesia method for providing analgesia during shoulder arthroscopy with low risks of diaphragmatic paresis, upper extremity motor paresis, nerve injury and persistent hypotension.