Local and Regional Anesthesia最新文献

Purpose: Minimally invasive intervention therapy anterior cutaneous branch of the femoral nerve for refractory neuropathic pain in the inner thigh area typically requires punctures at multiple sites to target the three nerves of the obturator nerve cutaneous branch, anterior cutaneous branch of the femoral nerve, and infrapatellar branch of the saphenous nerve. Clinical practice has demonstrated that the innovative "three-in-one" technique allows for simultaneous targeting of the three cutaneous nerves from a single entry point, effectively treating inner thigh pain. Moreover, this approach can also be used for local anaesthesia in shallow surgical procedures in the inner thigh area. We hope to promote this puncture technique among pain physicians.

Patients and methods: Clinical data of 8 patients with localized pain in the inner thigh from the Pain Department of Taihe Hospital, Shiyan City, Hubei Medical College, from April 2023 to September 2024 were collected. All the patients experienced pain in the cutaneous branch of the obturator nerve, the anterior branch of medial femoral cutaneous nerve, and the infrapatellar branch of the saphenous nerve. The "three-in-one" approach was used for nerve block and radiofrequency puncture.

Results: After the "three-in-one" approach, the 8 patients showed varying degrees of improvement in their Numeric Rating Scale (NRS) scores. The patients were satisfied with the treatment method and efficacy, and no complications, such as nerve damage, occurred during the operation.

Conclusion: The "three-in-one" approach is a potentially effective method for treating pain in the inner lower limb area, significantly reducing the damage caused by multiple puncture and providing ideas for more minimally invasive treatment of other areas; this approach meets expectations for more minimally invasive treatment.

Background: While propofol is a commonly utilized medication for sedation during gastrointestinal endoscopy, it is associated with adverse effects such as hypotension and injection pain. This trial was conducted to test the hypothesis that chloroprocaine can reduce the requirement for propofol and alleviate injection pain during gastrointestinal endoscopy.

Methods: Sixty patients undergoing gastrointestinal endoscopy were enrolled and randomly divided into study group (Group CP) and control group (Group C). Patients in Group CP received intravenous chloroprocaine 2 mg/kg, followed by continuous infusion at 6 mg·kg^-1·h^-1 until the end of examination. Patients in Group C received the same volume of saline. Subsequently, all patients were intravenously administered sufentanil at a dose of 0.05 μg/kg. Thirty seconds later, propofol was uniformly infused intravenously at a rate of 60 mL/min using an infusion pump. The primary outcome was the consumption of propofol. Secondary outcomes included the incidence of hypoxemia, hypotension, bradycardia, injection pain, and coughing/body movement during examination. The recovery time, PACU stay time, postoperative pain score, and endoscopists' satisfaction score were also recorded.

Results: Group CP demonstrated a significantly lower total requirement for propofol compared to Group C, with means of (119±14) mg and (148±18) mg respectively, P<0.001. This trend was also observed for both the first and supplemental doses. There were no significant differences between the two groups regarding intraoperative adverse events. The incidence of injection pain in Group CP was lower than that in Group C (P=0.007). The recovery time [(4.7±1.4) vs (6.6±1.3), P<0.001], PACU stay time [(13.0±2.9) vs (16.7±3.0), P<0.001] and postoperative pain score [(1.9±0.7) vs (2.5±0.7), P=0.002] in Group CP were lower than those in Group C.

Conclusion: Intravenous chloroprocaine reduces the requirement for propofol, alleviates propofol injection pain, and improves recovery in patients undergoing gastrointestinal endoscopy.

Background: It has been recognized that the type of anesthetic and analgesic technique and the relative pain degree may have an influence on hyperglycemic-stress response to surgery. This comparative study aimed to assess glucose levels in both mothers and infants during normal vaginal delivery. This study aimed to investigate this stress response between mothers who received parenteral analgesia versus epidural analgesia (EA) as an objective reflection for pain response.

Methods: One hundred and seventeen patients participated in this prospective comparative study. They were categorized into two groups: parenteral analgesia group (who received subcutaneous morphine) and EA group. The primary outcome was to measure the difference in blood glucose level before delivery (at 3 cm cervical dilation), at full dilation, and at the third stage of labor and compare these values between both groups. The secondary outcome was to assess the factors affecting the glycemic stress response in mothers and neonates.

Results: The change in maternal glucose level at full dilation and after delivery were significantly lower in the EA group. Neonatal glucose levels were not significantly different between the two groups. The change in maternal glucose level was influenced by the number of gravity and miscarriages. Neonatal glucose levels were associated with the gestational age of delivery, birth weight, and maternal glucose level at full cervical dilation.

Conclusion: EA appears superior to parenteral opioids analgesia, providing better pain management and subsequent lower stress response levels for mothers during vaginal delivery. These findings highlight the importance of the choice of analgesia during labor to optimize maternal well-being. Optimizing maternal factors (such as glycemic response) and neonatal factors (such as prematurity and birth weight) may influence the stress response of the neonates.

Purpose: The C4 dermatome anesthesia holds significance for arthroscopic shoulder surgery. However, the reliability of achieving C4 dermatome anesthesia with the current low-dose ultrasound-guided interscalene block (ISB) and supraclavicular block (SCB) remains uncertain. This prospective, single-center study examined the effects of ultrasound-guided interscalene block (ISB) and supraclavicular block (SCB) on the C4 sensory dermatome in patients undergoing shoulder, hand, or wrist surgery.

Patients and methods: Patients undergoing outpatient shoulder, hand, or wrist surgeries received ultrasound-guided ISB (for shoulder surgeries) with 12-15 mL of 0.5% bupivacaine or ultrasound-guided SCB (for hand and wrist surgeries) with 20-24 mL of 0.5% bupivacaine. The primary objective of the study was to investigate the sensory effect on the C4 dermatome after ISB and SCB. The secondary outcomes included the sensory effect on the C5 dermatome after performing ISB and SCB, pain scores upon arrival at the post-anesthesia care unit (PACU), and the incidence of adverse effects.

Results: Sixty-one patients were recruited: 30 for ISB and 31 for SCB. C4 dermatome coverage was achieved in 53% and 29% of patients in the ISB and SCB groups, respectively (p=0.0268). Additionally, C5 dermatome coverage was achieved in 97% and 68% of patients in the ISB and SCB groups, respectively (p=0.0034). A moderate correlation coefficient (r=0.47) was observed between C4 sensory scores and postoperative pain scores.

Conclusion: Ultrasound-guided ISB successfully provided C4 coverage in 53% of cases, suggesting that performing an additional C4 block alongside ISB could be advantageous when aiming for complete surgical anesthesia. SCB may not be the primary choice for shoulder surgeries as it often fails to achieve satisfactory sensory blocks at the C4 and C5 levels.

Purpose: Thoracic surgery often results in severe chronic postoperative pain. Current evidence favors two locoregional techniques. Thoracic Epidural Anesthesia (TEA), the gold standard, and Thoracic Paravertebral Block (TPVB), which is associated with fewer side effects but is limited by short duration of action of local anesthetics (LA) and potential failure due to improper drug distribution. This study investigates the use of dexmedetomidine (DEX) as adjuvant to prolong the effects of LA in TPVB, with methylene blue used for visual confirmation of accurate injectate spread.

Patients and methods: We observed 6 patients undergoing Video-Assisted Thoracoscopy (VATS) lobectomy who received TPVB with ropivacaine, DEX and methylene blue. The primary endpoint was postoperative pain recorded at 1, 12, 24, 48 hours using Numeric Rating Scale (NRS); the secondary endpoints were cumulative opioid consumption in the first 24 hours in Milligram Morphine Equivalents (MME); adverse events: occurrence of bradycardia, hypotension, Postoperative Nausea and Vomiting (PONV); length of hospital stay. All patients completed the study.

Results: Our results showed optimal pain scores, with NRS scores always below 4, decreased need for opioids, and prolonged analgesia. None of the patients had bradycardia nor PONV, but two patients experienced acute and self-limited hypotension following TPVB.

Conclusion: Thoracic Paravertebral Block with Dexmedetomidine and methylene blue was effective and safe in controlling postoperative pain. Methylene blue could help improving knowledge on anesthetics distribution to reduce failure rates.

Background: Modified thoracoabdominal nerve block through the perichondrial approach (M TAPA), described by Tulgar et al in 2019, is a relatively new block. The block is relatively superficial and easy to perform. It has been successfully used in various laparoscopic surgeries and has been shown to reduce the perioperative opioid requirements.

Case presentation: We report the case of a 41-year-old male with ASA grade 2, who was scheduled to undergo laparoscopic unilateral inguinal hernia repair. The patient had General Anaesthesia with bilateral M TAPA using 30 mL of 0.25% levobupivacaine on each side before the incision. Intraoperatively, the surgeon decided that the patient would require bilateral inguinal hernia repair. The patient received 100 µg fentanyl at induction, and intravenous paracetamol and ketorolac intraoperatively. The surgery was uneventful, and the patient was transferred to a post anaesthesia care unit. In the postoperative period, the patient did not require opioids and received only two doses each of paracetamol and ketorolac. The patient was discharged the following day, without any further sequelae.

Conclusion: When administered bilaterally, MTAPA can provide adequate analgesia and has opioid-sparing effects in both the intra and postoperative periods.

Although peripheral nerve blocks are deemed very safe, a significant number of patients for whom this anesthetic technique may be particularly appealing to apply may present with preexisting peripheral neuropathies, putting them at risk for further nerve damage. We present a case with a 74-year-old male with several risk factors for peripheral neuropathy who developed a foot drop following a popliteal sciatic nerve block with ropivacaine. We suggest that the vasoconstrictive properties of ropivacaine may have contributed to a preexisting neuronal ischemia, thus further damaging an already compromised nerve.

Objective: Acute postoperative pain is one of the major clinical problems that occurs in patients undergoing cesarean section with a prevalence of 89.8%. Postoperative pain causes discomfort and various complications for the mother. In addition, postoperative pain that is not handled properly can increase the risk of becoming chronic pain by 2.5 times. One of the methods recommended in the Enhanced Recovery After Caesarean Section (ERACS) protocol to prevent acute postoperative pain is the use of intrathecal long-acting opioids, with intrathecal morphine as the gold standard and Transversus Abdominis Plane (TAP) block. This study aims to assess the comparison of opioid needs as analgesic rescue between the administration of 0.1mg spinal morphine and TAP block with bupivacaine 0.2% 10mg in patients undergoing cesarean section.

Methods: This study is an observational study in a single Tertiary Hospital in West Java - Indonesia. Patients were given patient-controlled anesthesia (PCA) with fentanyl as analgesic rescue. Statistical analysis of the numerical data used the unpaired t-test and Chi-Square test for categorical data.

Results: In the group that was given spinal morphine, the duration of additional opioids was longer (p < 0.05), and the total dose of additional opioids was less than the TAP block group (p < 0.05).

Conclusion: The spinal morphine requires fewer additional opioids than the TAP block.

Purpose: Rebound pain after regional anesthesia, a common phenomenon when the analgesic effect wears off, has been recognized in the last a few years. The aim of this study is to analyze the status and tendency of this area in a macroscopic perspective.

Methods: Bibliometric analysis is the primary methodology of this study. Literature retrieval was conducted in Web of Science (WoS) Core Collection. WoS, Excel, VOSviewer and CiteSpace were employed to do the analyses and visualization. Parameters were analyzed, such as publications, citations, journals, and keywords, etc.

Results: In total, 70 articles in the past 10 years were identified eligible. Most articles (14 pieces) were published in 2021, followed by 2022 and 2023 with 13 articles. Researchers come from 134 institutions and 20 countries. Huang Jung-Taek, Hallym College, and USA are the most productive author, institution and country, respectively. The articles were mainly published on the top journals of anesthesiology, orthopedics and surgery. The topic of these articles is primarily about the clinical issues of rebound pain. Peripheral nerve block, brachial plexus block and femoral nerve block are the activist keywords in the area, while perioperative management, fracture surgery and outcome may become hotpots in the next years.

Conclusion: Our results show that the study of rebound pain after regional anesthesia starts relatively late and is in upward tendency, future studies can focus on the perioperative management and outcomes of fracture patients, and the definition and mechanism of rebound pain after regional anesthesia.

Introduction: Local anaesthetics (LA) are commonly used in dental and surgical emergency wards by both anaesthesia professionals and non-anaesthesia professionals. Anecdotal evidence shows that non-anaesthesia health-care professionals do not monitor vital signs during the use of local anaesthesia, and there are no standard hospital guidelines on the use of LA and management of LA toxicity by non-anaesthesia professionals.

Purpose: This study sought to assess the knowledge, attitudes and practices regarding local anaesthetic use among non-anaesthesia health-care professionals at Mulago National Referral Hospital.

Patients and methods: This was a cross-sectional study that utilized a quantitative research approach. The sample size of the study was 43 non-anaesthesia healthcare professionals from the casualty and surgical outpatient wards and Mulago dental ward. Data was collected using a questionnaire and analyzed using STATA 15.

Results: Overall, 66.67% of the Specialist, 76.47% of the senior house officers, 100% of medical officers, and 80% of the clinical orthopedic house officers had unsatisfactory levels of knowledge in Mulago casualty and surgical outpatient wards. 20% of the specialist and 16.67% of the senior house officers had unsatisfactory levels of knowledge in Mulago dental ward. 87.5% of the non-anaesthesia health-care professionals do not give a test dose on a routine basis in Mulago casualty and surgical outpatient wards. A total of 63.64% of the non-anaesthesia healthcare professionals in Mulago dental ward do not sterilize the site of injection.

Conclusion: Non-anaesthesia health-care professionals had unsatisfactory levels of knowledge, somewhat good practices, and negative attitudes toward LA use.