Efficacy and safety of bupivacaine versus lidocaine in local anesthesia of the nasopharynx: A meta-analysis

Sphenopalatine ganglion (SPG) blocks: Evidence and implementation for acute migraine treatment in the primary care setting

Background

Sphenopalatine ganglion (SPG) blocks may be effective and affordable treatments for acute migraine but are rarely used in the primary care setting, making them inaccessible treatment for those suffering from migraine.

Objective

To outline evidence for the use of SPG block in the treatment of acute migraine. To determine the feasibility and effectiveness of primary care in-office and at-home SPG block administration.

Methods

A retrospective chart review of patients receiving in-office or at-home SPG block to treat acute migraine was completed. Pre- and post-treatment pain measurements were the primary outcome, along with patient-reported adverse effects.

Results

Results from this study revealed that 87% of SPG block administrations (via catheter and atomizer) resulted in pain relief with minimal adverse effects. Methods and materials for catheter and atomizer administration of SPG blocks are outlined, in addition to tips for integrating this service into primary care practices.

Conclusions

This study showed that SPG blocks may be administered effectively in primary care settings or at home with proper patient education and are an effective treatment modality to decrease pain associated with acute migraine.

Pain Management in Surgical Treatment of Facial Fractures: Alternative Approaches to Opioid Use

Study Design

Literature review.

Objective

This review aims to explore current opioid use trends for surgical management of facial fractures, as well as methods and alternative treatments to decrease opioid use.

Methods

Review of selected literature from Medline and Google Scholar.

Results

Despite the devastating effects of the opioid epidemic and recent policy changes aimed at reducing unnecessary opioid prescription, opioids remain commonly used for pain management after facial fracture repair. Recently, use of multimodal analgesic therapy has been suggested to decrease opioid dosage utilized for post-operative pain control. Alternatives to medication therapies have been proposed for pain management; however, standardized recommendations for pain management in facial fracture patients remain unclear.

Conclusions

Further research is required to establish evidence-based recommendations for pain management in craniofacial fracture repair.

Graphene Oxide-Reinforced Alginate Hydrogel for Controlled Release of Local Anesthetics: Synthesis, Characterization, and Release Studies

In pain relief, lidocaine has gained more attention as a local anesthetic. However, there are several side effects that limit the use of local anesthetics. Therefore, it is hypothesized that a hydrogel system with facile design can be used for prolonged release of lidocaine. In this study, we developed a formulation comprises of sodium alginate (SA) and graphene oxide (GO) to prolong the release of lidocaine. The gelation was induced by physically crosslinking the alginate with Ca2+ ions. The formation of blank SA and GO-reinforced SA hydrogels was investigated with different concentration of Ca2+ ions. The controlled release of lidocaine hydrochloride (LH) on both hydrogel systems was studied in PBS solution. The GO-reinforced SA hydrogels exhibited more sustained release than SA hydrogels without GO. In vitro biocompatibility test in L929 fibroblast cells confirmed the non-toxic property of hydrogels. Furthermore, to prove the in-situ gelation and biodegradability of hydrogels the hydrogels were injected on mice model and confirmed the stable gel formation. The hydrogels implanted onto the subcutaneous tissue of hydrogels retained over one week. These results indicate that LH-loaded GO-reinforced SA hydrogel can be a potential biomaterial for controlled release of local anesthetics.

Effect of bupivacaine versus lidocaine local anesthesia on postoperative pain reduction in single-port access laparoscopic adnexal surgery using propensity score matching

OBJECTIVE

The umbilicus is a single, painful incisional site on the abdomen during trans-umbilical single-port access laparoscopic surgery. Previously, we found that periumbilical lidocaine could reduce postoperative pain. This study aimed to compare the efficacy of bupivacaine and lidocaine in reducing pain.

METHODS

We performed a retrospective analysis in a study group (Bupivacaine group, 100 patients who received periumbilical infiltration of bupivacaine before their incisional site repair completion) and control group (Lidocaine group, 100 patients who received lidocaine at their incisional site repair completion). We compared postoperative pain based on the numerical rating scale (NRS) between propensity score-matched Bupivacaine-treated (n=50) and Lidocaine-treated (n=50) patients.

RESULTS

The postoperative pain scores based on the NRS were not significantly different between the 2 groups until 12 hours post-operation. However, 24 hours post-operation, the Bupivacaine group showed significantly lower pain than the Lidocaine group (24 hours, 1.76±1.07 vs. 2.53±1.11 NRS, P<0.001; 48 hours, 0.84±0.85 vs. 2.16±0.85 NRS, P<0.001).

CONCLUSION

Periumbilical infiltration of bupivacaine has a longer acting efficacy on reducing postoperative surgical pain than that of lidocaine.

Local Hematoma Block as Postoperative Analgesia in Pediatric Supracondylar Humerus Fractures

Purpose

Supracondylar humerus fracture (SHF) is the most common type of fracture in children. The aim of this study was to evaluate the efficacy of local hematoma block with 0.25% bupivacaine as postoperative pain control in patients with pediatric SHF who underwent closed reduction pin fixation.

Methods

We performed an institutional review board–approved, prospective cohort study of 65 patients with SHF treated with closed reduction percutaneous pin fixation. For 6 months, all patients were randomly divided into 2 groups. The treatment group (35 patients) received an intraoperative local hematoma block using 0.25% bupivacaine whereas the control group (30 patients) did not receive a local hematoma block as postoperative pain management adjuvant. After surgery, all patients were prescribed opioid pain medication. To evaluate the efficacy of the hematoma block, postoperative morphine equivalent consumption and the Faces Pain Scale–Revised (FPS-R) survey were blindly recorded during postoperative day 1. Demographic data, surgical details, clinical neurovascular examination during the hospital stay, and complications were also evaluated.

Results

Comparison of the control group with the treatment group showed similar morphine equivalent consumption and Face Pain Scale–Revised Survey results. No hematoma block-associated complications were reported.

Conclusions

The result of this study do not favor the use of local hematoma block to improve pain control and decrease the need for opioid use on postoperative day 1 in pediatric SHF after patients undergo closed reduction percutaneous pin fixation. These results can lay the foundation for future studies while suggesting new, novel opioid-free pain control strategies in patients with SHF.

Type of study/level of evidence

Therapeutic II.