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Abo Elfadl GM, Ali WN, Ahmed FN, Abd El-Rady NM, Ali AM, Abdel Rady MM. Add dexmedetomidine to levobupivacaine for transversus abdominis plane block in elderly patients undergoing inguinal hernia repair: Could it make a difference? A randomised trial. J Perioper Pract 2023:17504589231196653. [PMID: 37811840 DOI: 10.1177/17504589231196653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
BACKGROUND Transversus abdominis plane block is becoming more common as part of multimodal analgesia for post-abdominal operation pain relief. This study compared the analgesic effects of adding dexmedetomidine to levobupivacaine (transversus abdominis plane) block in elderly patients undergoing inguinal hernia surgery to adding fentanyl. METHODS Overall, 90 elderly patients with a simple inguinal hernia repair were randomly assigned to one of three groups. After spinal anaesthesia, an ultrasound-guided transversus abdominis plane block was performed. Transversus abdominis plane block was accomplished with 0.25% levobupivacaine + 0.9% normal saline in Group L (n = 30) (20mL). Transversus abdominis plane block was accomplished with 0.25% levobupivacaine + 1 µg/kg dexmedetomidine in Group D (n = 30) (20mL). Transversus abdominis plane block was obtained with 0.25% levobupivacaine + 1 µg/kg fentanyl in Group F (n = 30) (20mL). The primary outcome was the first analgesic request, and the secondary outcomes were the visual analog scale, postoperative analgesic requirements, sedation, hemodynamic stability, and related complications 24 hours postoperatively. 1gm paracetamol intravenously was provided as rescue analgesia. RESULTS The time to first analgesic request in the dexmedetomidine group was substantially more prolonged than in the fentanyl and control groups (516.5±27.8, 451.2±11.1, and 403.9±10.5min, respectively; p < 0.05). Postoperative analgesic requirements were significantly decreased in dexmedetomidine 1(1-2) than control 2(1-3) and fentanyl 1.5(1-2) respectively (P<0.01). VAS was significantly lower in Group D and Group F than in Group L postoperatively. No significant difference in side effects was noted between the groups. CONCLUSION The transversus abdominis plane block is the best multimodal analgesia choice for inguinal hernia repair in older patients. Combining dexmedetomidine with levobupivacaine in the transversus abdominis plane block can improve the quality of postoperative analgesia while avoiding significant side effects.
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Affiliation(s)
| | - Wesam Nashat Ali
- Medical Physiology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Fatma Nabil Ahmed
- Medical Physiology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Nessren M Abd El-Rady
- Medical Physiology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
- Medical Physiology Department, Sphinx University, New Assiut, Assiut, Egypt
| | - Ahmed Mohammed Ali
- Department of General Surgery, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Marwa Mahmoud Abdel Rady
- Department of Anesthesia and Intensive Care, Faculty of Medicine, New Valley University, New Valley Governorate, Egypt
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Entezary SR, Faiz SHR, Alebouyeh MR, Sharifian A, Derakhshan P. The Effect of Epidural Infusion of Dexmedetomidine on Postoperative Analgesia After Thoracotomy: A Randomized Clinical Trial. Anesth Pain Med 2023; 13:e134842. [PMID: 37404259 PMCID: PMC10317031 DOI: 10.5812/aapm-134842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 01/25/2023] [Indexed: 07/20/2023] Open
Abstract
Background The unique analgesic properties of dexmedetomidine have led anesthesiologists to use it as an alternative to relieve pain after major surgeries. Objectives We aimed to evaluate the effect of continuous injection of thoracic epidural dexmedetomidine on analgesia after thoracotomy. Methods In this randomized, double-blind clinical trial, 46 patients (18 to 70 years old) who were candidates for thoracotomy surgery were randomly assigned to receive ropivacaine alone or combined with dexmedetomidine after epidural anesthesia as postoperative epidural anesthesia. The postoperative sedation rate, pain score, and opioid use were assessed within 48 hours after surgery and compared between the 2 groups. Results Comparing the mean postoperative sedation scores indicated no difference between the 2 study groups. The pain score assessment showed a lower pain score 6 to 36 hours after surgery in the group receiving concurrent ropivacaine and dexmedetomidine than in the group receiving ropivacaine alone. In the 2 groups receiving ropivacaine with and without dexmedetomidine, the rate of morphine administration after surgery was 43.4% and 65.2%, respectively, indicating no difference. However, the first group received significantly lower doses of morphine after the end of surgery (3.26 ± 0.90 mg vs. 7.04 ± 1.48 mg; P = 0.035). Conclusions A combination of ropivacaine and dexmedetomidine as epidural analgesia can lead to lower postoperative pain scores and reduced doses of opioids required.
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Affiliation(s)
- Saeid-reza Entezary
- School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
- Anesthesiology and Pain Fellowship, Rasoul Akram Medical Center, Tehran, Iran
| | - Seyed Hamid Reza Faiz
- Minimally Invasive Surgery Research Center, Department of Anesthesiology and Pain Medicine, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mahmood-Reza Alebouyeh
- School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
- Anesthesiology and Pain Fellowship, Rasoul Akram Medical Center, Tehran, Iran
| | - Anoushiravan Sharifian
- Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Pooya Derakhshan
- Pain Research Center, Department of Anesthesiology and Pain Medicine, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
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Kaye AD, Edinoff AN, Yan JY, Kaye AJ, Alvarado MA, Pham AD, Chami AA, Shah RJ, Dixon BM, Shafeinia A, Cornett EM, Fox C. Novel Local Anesthetics in Clinical Practice: Pharmacologic Considerations and Potential Roles for the Future. Anesth Pain Med 2022; 12:e123112. [PMID: 35433373 PMCID: PMC8995776 DOI: 10.5812/aapm.123112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 02/08/2022] [Indexed: 12/14/2022] Open
Abstract
The treatment of pain, both acute and chronic, has been a focus of medicine for generations. Physicians have tried to develop novel ways to effectively manage pain in surgical and post-surgical settings. One intervention demonstrating efficacy is nerve blocks. Single-injection peripheral nerve blocks (PNBs) are usually preferred over continuous PNBs, since they are not associated with longer lengths of stay. The challenge of single injection PNBs is their length of duration, which at present is a major limitation. Novel preparations of local anesthetics have also been studied, and these new preparations could allow for extended duration of action of anesthetics. An emerging preparation of bupivacaine, exparel, uses a multivesicular liposomal delivery system which releases medication in a steady, controlled manner. Another extended-release local anesthetic, HTX-011, consists of a combination of bupivacaine and low-dose meloxicam. Tetrodotoxin, a naturally occurring reversible site 1 sodium channel toxin derived from pufferfish and shellfish, has shown the potential to block conduction of isolated nerves. Neosaxitoxin is a more potent reversible site 1 sodium channel toxin also found in shellfish that can also block nerve conduction. These novel formulations show great promise in terms of the ability to prolong the duration of single injection PNBs. This field is still currently in development, and more researchers will need to be done to ensure the efficacy and safety of these novel formulations. These formulations could be the future of pain management if ongoing research continues to prove positive effects and low side effect profiles.
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Affiliation(s)
- Alan D. Kaye
- Department of Anesthesiology, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
| | - Amber N. Edinoff
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
- Corresponding Author: Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA.
| | - Justin Y. Yan
- Department of Anesthesiology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Aaron J. Kaye
- Louisiana State University Health Sciences Center, New Orleans, Los Angeles, USA
| | - Michael A. Alvarado
- Department of Anesthesiology, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
| | - Alex D. Pham
- Department of Anesthesiology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Azem A. Chami
- Department of Anesthesiology, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
| | - Rutvij J. Shah
- Department of Anesthesiology, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
| | - Bruce M. Dixon
- Department of Anesthesiology, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
| | - Amineh Shafeinia
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
- Corresponding Author: Pain Research Center, Department of Anesthesiology and Pain Medicine, Akbar Abadi Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Elyse M. Cornett
- Department of Anesthesiology, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
| | - Charles Fox
- Department of Anesthesiology, Louisiana State University Health Science Center, Shreveport, Los Angeles, USA
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Alimian M, Imani F, Rahimzadeh P, Faiz SHR, Bahari-Sejahrood L, C. Hertling A. Adding Dexmedetomidine to Bupivacaine in Ultrasound-guided Thoracic Paravertebral Block for Pain Management after Upper Abdominal Surgery: A Double-blind Randomized Controlled Trial. Anesth Pain Med 2021; 11:e120787. [PMID: 35291399 PMCID: PMC8908442 DOI: 10.5812/aapm.120787] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 11/05/2021] [Indexed: 12/17/2022] Open
Abstract
Background Paravertebral blocks are one of the possible postoperative pain management modalities after laparotomy. Adjuvants to local anesthetics, including alpha agonists, have been shown to lead to better pain relief and increased duration of analgesia. Objectives The aim of this study is to examine the effect of adding dexmedetomidine to bupivacaine for ultrasound-guided paravertebral blocks in laparotomy. Methods In this double-blind, randomized controlled trial (RCT), we enrolled 42 patients scheduled for T6 to T8 thoracic paravertebral block (TPVB) for analgesia after laparotomy. The patients were randomly assigned into two groups of BD (bupivacaine 2.5 mg/mL 20 mL plus dexmedetomidine 100 µg) and B (bupivacaine 20 mL alone). Following surgery, intravenous fentanyl patient-controlled analgesia was initiated. The numerical rating scale (NRS) for pain, sedation score, total analgesic consumption, time to first analgesic requirement, side effects (such as nausea and vomiting), respiratory depression, and patients’ satisfaction during the first 48 hours of evaluation were compared in the two groups. Results Pain scores and mean total analgesic consumption at the first 48 hours in the BD group were significantly lower than Group B (P = 0.03 and P < 0.001, respectively). The time of first analgesic request was significantly longer in BD group (P < 0.001). Sedation scores and side effects did not differ significantly between the two groups. Conclusions Adding dexmedetomidine to bupivacaine for TPVB after laparotomy yielded better postoperative pain management without significant complications.
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Affiliation(s)
- Mahzad Alimian
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farnad Imani
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
- Corresponding Author: Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Poupak Rahimzadeh
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Hamid Reza Faiz
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Leila Bahari-Sejahrood
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
- Corresponding Author: Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Arthur C. Hertling
- Department of Anesthesiology, Perioperative Care, and Pain Medicine, New York University School of Medicine, NY, USA
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Mahmoudi K, Rashidi M, Soltani F, Savaie M, Hedayati E, Rashidi P. Comparison of Intercostal Nerve Block with Ropivacaine and Ropivacaine-Dexmedetomidine for Postoperative Pain Control in Patients Undergoing Thoracotomy: A Randomized Clinical Trial. Anesth Pain Med 2021; 11:e118667. [PMID: 35291405 PMCID: PMC8908443 DOI: 10.5812/aapm.118667] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 01/04/2023] Open
Abstract
Background Thoracotomy is one of the most painful surgeries, and failure to alleviate patients' pain can have dangerous consequences. Objectives This study aimed to evaluate the addition of dexmedetomidine to ropivacaine in the intercostal block for postoperative pain control in patients undergoing thoracotomy. Methods In this randomized clinical trial, 74 patients aged 18 to 60 years with ASA class I or II, BMI less than 40, and no severe systemic problems referred to a teaching hospital in Ahvaz to undergo thoracotomy were included in the study and randomly divided into two groups. After surgery, an ultrasound-guided intercostal block was done with ropivacaine (5 cc of 0.25% solution; group R) or ropivacaine (5 cc of 0.25% solution) plus dexmedetomidine (0.5 µg/kg; group RD) per dermatome. Two dermatomes above and two dermatomes below the level of surgical incision were used. Pain, total opioid consumption, length of ICU stays, time to first rescue analgesic, and time to get out of bed were compared between the two groups. Results The intercostal block significantly reduced pain in both groups (P < 0.0001). The pain was lower in the RD group than in the R group from six hours after the intervention up to 24 hours after (P < 0.001). The number of patients who needed rescue analgesia at 12 hours was significantly lower in the RD group (P < 0.05). The RD group also had lower total opioid consumption and a longer time to receive the first rescue analgesia (P < 0.01). There was no significant difference between the two groups in the length of hospitalization and the time to get out of bed. Conclusions Dexmedetomidine is an effective and safe choice to be used as an adjunct to ropivacaine in ICB, and it extends the duration of analgesia in combination with ropivacaine after thoracotomy.
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Affiliation(s)
- Kamran Mahmoudi
- Department of Anesthesiology, Pain Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahboobeh Rashidi
- Department of Anesthesiology and Pain Medicine, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Farhad Soltani
- Department of Anesthesia, Ahvaz Anesthesiology and Pain Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohsen Savaie
- Pain Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ehsan Hedayati
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Parisa Rashidi
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Gado AA, Abdalwahab A, Ali H, Alsadek WM, Ismail AA. Serratus Anterior Plane Block in Pediatric Patients Undergoing Thoracic Surgeries: A Randomized Controlled Trial. J Cardiothorac Vasc Anesth 2021; 36:2271-2277. [PMID: 34607760 DOI: 10.1053/j.jvca.2021.09.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVE(S) This study was designed to evaluate the efficacy and safety of serratus anterior plane block (SAPB) as an analgesic technique for thoracotomies in pediatric patients. DESIGN Double-blinded randomized controlled trial. SETTING A single-center study at Aboelrish Pediatric Hospital, one tertiary hospital of Cairo University Hospitals. PARTICIPANTS Seventy pediatric patients aged six months-to-three years scheduled for thoracotomies. INTERVENTIONS Patients were randomized into two groups, group SF and group F. Group SF received an ultrasound-guided SAPB (n = 35), whereas group F (n = 35) did not. All groups received an intraoperative fentanyl infusion (at 0.5 μg/kg /h). MEASUREMENTS The primary outcome was the total dose of postoperatively administrated fentanyl in the first 24 hours. The secondary outcomes included the total dose of intraoperative additional fentanyl boluses; time of the first postoperative rescue analgesia; and postoperative Face, Legs, Activity, Cry, Consolability scale (FLACC) score values. MAIN RESULTS The main results of this study showed that the administrated fentanyl in the 24 hours postoperatively was significantly lower in SF group than in F group (p value ˂ 0.001). In addition, significant decreases of the postoperative FLACC pain score (p value ˂ 0.001), reduction of intraoperative fentanyl consumption (p value ˂ 0.001), and delay of the first rescue analgesia (p value ˂ 0.001) were recorded in SF group in relation to F group without significant complications in both groups. CONCLUSIONS Serratus anterior plane block can provide a safe, effective, and easy-to-perform regional technique for children undergoing thoracotomies.
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Affiliation(s)
- Ahmed Ali Gado
- Anesthesia and Pain Management, Department of Anesthesia, Kasr Alainy Faculty of Medicine, Cairo University, Egypt
| | - Ahmed Abdalwahab
- Anesthesia and Pain Management, Department of Anesthesia, Kasr Alainy Faculty of Medicine, Cairo University, Egypt
| | - Hassan Ali
- Anesthesia and Pain Management, Department of Anesthesia, Kasr Alainy Faculty of Medicine, Cairo University, Egypt
| | - Wafaa Mohamed Alsadek
- Anesthesia and Pain Management, Department of Anesthesia, Kasr Alainy Faculty of Medicine, Cairo University, Egypt
| | - Ahmed Abdelaziz Ismail
- Anesthesia and Pain Management, Department of Anesthesia, Kasr Alainy Faculty of Medicine, Cairo University, Egypt.
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Farahmand Rad R, Imani F, Emami A, Salehi R, Ghavamy AR, Shariat AN. Postoperative Pain Management: Efficacy of Caudal Tramadol in Pediatric Lower Abdominal Surgery: A Randomized Clinical Study. Anesth Pain Med 2021; 11:e119346. [PMID: 34692449 PMCID: PMC8520683 DOI: 10.5812/aapm.119346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 09/12/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND One of the methods of pain control after pediatric surgical procedures is regional techniques, including caudal block, despite their limitations. OBJECTIVES In this study, the pain score and complications of caudal tramadol were evaluated in pediatrics following lower abdominal surgery. METHODS In this study, 46 children aged 3 to 10 years were allocated into two equal groups (R and TR) for performing caudal analgesia after lower abdominal surgery. The injectate contained 0.2% ropivacaine 1 mL/kg in the R group (control group) and tramadol (2 mg/kg) and ropivacaine in the TR group. The pain score, duration of pain relief, amount of paracetamol consumption, hemodynamic alterations, and possible complications at specific times (1, 2, and 6 hours) were evaluated in both groups. RESULTS No considerable difference was observed in the pain score between the groups in the first and second hours (P > 0.05). However, in the sixth hour, the TR group had a significantly lower pain score than the R group (P < 0.05). Compared to the R group, the TR group had a longer period of analgesia and lower consumption of analgesic drugs (P < 0.05). Heart rate and blood pressure differences were not significant between the two groups (P > 0.05). Similarly, the duration of operation and recovery time were not remarkably different between the two groups (P > 0.05). Complications had no apparent differences between these two groups, as well (P > 0.05). CONCLUSIONS In this study, the addition of tramadol to caudal ropivacaine in pediatric lower abdominal surgery promoted pain relief without complications.
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Affiliation(s)
- Reza Farahmand Rad
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farnad Imani
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Azadeh Emami
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Salehi
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Reza Ghavamy
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Nima Shariat
- Icahn School of Medicine of Mount Sinai, Mount Sinai Morningside Hospital Center, New York, USA
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Edinoff AN, Houk GM, Patil S, Bangalore Siddaiah H, Kaye AJ, Iyengar PS, Cornett EM, Imani F, Mahmoudi K, Kaye AM, Urman RD, Kaye AD. Adjuvant Drugs for Peripheral Nerve Blocks: The Role of Alpha-2 Agonists, Dexamethasone, Midazolam, and Non-steroidal Anti-inflammatory Drugs. Anesth Pain Med 2021; 11:e117197. [PMID: 34540647 PMCID: PMC8438706 DOI: 10.5812/aapm.117197] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 12/15/2022] Open
Abstract
Adjuvant drugs for peripheral nerve blocks are a promising solution to acute postoperative pain and the transition to chronic pain treatment. Peripheral nerve blocks (PNB) are used in the brachial plexus, lumbar plexus, femoral nerve, sciatic nerve, and many other anatomic locations for site-specific pain relief. However, the duration of action of a PNB is limited without an adjuvant drug. The use of non-opioid adjuvant drugs for single-shot peripheral nerve blocks (sPNB), such as alpha-2 agonists, dexamethasone, midazolam, and non-steroidal anti-inflammatory drugs, can extend the duration of local anesthetics and reduce the dose-dependent adverse effects of local anesthetics. Tramadol is a weak opioid that acts as a central analgesic. It can block voltage-dependent sodium and potassium channels, cause serotonin release, and inhibit norepinephrine reuptake and can also be used as an adjuvant in PNBs. However, tramadol's effectiveness and safety as an adjuvant to local anesthetic for PNB are inconsistent. The effects of the adjuvants on neurotoxicity must be further evaluated with further studies to delineate the safety in their use in PNB. Further research needs to be done. However, the use of adjuvants in PNB can be a way to help control postoperative pain.
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Affiliation(s)
- Amber N. Edinoff
- Louisiana State University Health Science Center Shreveport, Department of Psychiatry and Behavioral Medicine, Shreveport, LA, USA
| | - Garrett M. Houk
- School of Medicine, Louisiana State University Shreveport, Shreveport, LA, USA
| | - Shilpa Patil
- Louisiana State University Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | | | - Aaron J. Kaye
- Medical University of South Carolina, Department of Anesthesiology and Perioperative Medicine, Charleston, SC, USA
| | | | - Elyse M. Cornett
- Louisiana State University Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | - Farnad Imani
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Kamran Mahmoudi
- Pain Research Center, Department of Anesthesiology, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Adam M. Kaye
- Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Department of Pharmacy Practice, Stockton, CA, USA
| | - Richard D. Urman
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Boston, MA, USA
| | - Alan D. Kaye
- Louisiana State University Shreveport, Department of Anesthesiology, Shreveport, LA, USA
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Margulis R, Francis J, Tischenkel B, Bromberg A, Pedulla D, Grtisenko K, Cornett EM, Kaye AD, Imani F, Imani F, Shaparin N, Vydyanathan A. Comparison of Dexmedetomidine and Dexamethasone as Adjuvants to Ultra-Sound Guided Interscalene Block in Arthroscopic Shoulder Surgery: A Double-Blinded Randomized Placebo-Controlled Study. Anesth Pain Med 2021; 11:e117020. [PMID: 34540645 PMCID: PMC8438728 DOI: 10.5812/aapm.117020] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Interscalene block is one of the popular methods for decreasing pain and analgesic consumption after shoulder arthroscopic surgeries. OBJECTIVES The objective is to compare the analgesic duration of effects of dexmedetomidine and dexamethasone as adjuvants to 0.5% ropivacaine in ultrasound-guided interscalene blocks for arthroscopic shoulder surgery in an ambulatory setting. METHODS In this randomized controlled trial, 117 adult patients candidate for ambulatory arthroscopic shoulder surgery under general anesthesia were divided into three groups to perform an ultra-sound guided interscalene block before the surgery. The ropivacaine (control) group received ropivacaine 0.5% 20 mL, group Dexamethasone received ropivacaine 0.5% 20 mL plus 4mg dexamethasone, and group dexmedetomidine received ropivacaine 0.5% 20 mL plus 75 mcg of dexmedetomidine. Time to return of sensory function, of motor function, of first pain sensation, amount of opioid medication consumed at 24 hours and 48 hours post-operatively were measured. RESULTS The 24-hour median (25th- 75th percentile) opioid consumption in morphine equivalents was similar between groups 22.5 mg (10 - 30), 15 mg (0 - 30), and 15 mg (0 - 20.6) in the ropivacaine, dexmedetomidine, and dexamethasone groups, respectively (P = 0.130). The median (25th- 75th percentile) 48 hours post-operatively, the median opioid consumption in morphine equivalents was 40 mg (25 - 67.5) in the ropivacaine group, 30 mg (22 - 50.6) in the dexamethasone group, and 52.5 mg (30 - 75) in the dexmedetomidine group (P = 0.278). The median 24-hour pain scores were 6 (5 - 8) in the ropivacaine control group, 7 (5.5 - 8) in the dexamethasone group, and 7 (4 - 9) in the dexmedetomidine group (P = 0.573). CONCLUSIONS There was no statistical difference in opioid consumption at 24 and 48 hours post-operatively when comparing dexmedetomidine, dexamethasone, and no adjuvant. However, intraoperative opioid use was significantly lower with dexmedetomidine compared to dexamethasone and plain 0.5% ropivacaine. The safe side effect profile of dexmedetomidine makes it a reasonable alternative as an adjuvant for peripheral nerve blockade when dexamethasone use may be contraindicated.
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Affiliation(s)
- Roman Margulis
- Department of Anesthesiology, Montefiore Medical Center, Bronx, NY, USA
| | - Jacquelyn Francis
- Department of Anesthesiology, Montefiore Medical Center, Bronx, NY, USA
| | - Bryan Tischenkel
- Department of Anesthesiology, Montefiore Medical Center, Bronx, NY, USA
| | - Adam Bromberg
- Department of Anesthesiology, Montefiore Medical Center, Bronx, NY, USA
| | | | | | - Elyse M. Cornett
- Louisiana State University Health Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | - Alan D. Kaye
- Louisiana State University Health Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | - Farnad Imani
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farsad Imani
- Department of Anesthesiology, Tehran University of Medical Sciences, Tehran, Iran
| | - Naum Shaparin
- Department of Anesthesiology, Montefiore Medical Center, Bronx, NY, USA
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