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Salevitz D, Olson K, Klanderman M, Mi L, Tyson M, Humphreys M, Misra L. Intraoperative magnesium sulfate is not associated with improved pain control after urologic procedures. Perioper Med (Lond) 2024; 13:91. [PMID: 39242553 PMCID: PMC11380422 DOI: 10.1186/s13741-024-00448-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 08/28/2024] [Indexed: 09/09/2024] Open
Abstract
OBJECTIVE To evaluate effects of intraoperative magnesium sulfate infusion on pain control and analgesic use in the postanesthesia care unit (PACU). METHODS This is a retrospective review of patients undergoing robot-assisted radical prostatectomy (RARP) and endoscopic procedures of the bladder, prostate, and urethra from 2/2021 to 12/2021. Patients receiving Mg infusion (Mg group) received an intravenous 2-g bolus of Mg at anesthesia induction, followed by infusion of 1 g/h until procedure end. Outcomes were compared with patients who underwent similar procedures during this timeframe without Mg (Control). Endpoints were use of anticholinergic (AC) and belladonna and opium suppositories (BO), maximum pain score, and morphine milligram equivalents (MME) in PACU. RESULTS There were 182 patients, with 89 (48.9%) patients in the Mg group and 93 (51.1%) in the Control. Significantly, fewer patients in the Mg group were given AC/BO in PACU (9.0% vs. 21.7%, p = 0.02), with odds of using AC/BO which was 0.36 (95% CI 0.14, 0.83). No differences were found in pain score (p = 0.62) or MME administration (p = 0.94). In subgroup univariate analysis, only those who underwent bladder procedures had a significant difference in use of AC/BO (9.5% vs. 30.2%; p = 0.02). Across all surgeries, Mg infusion was associated with decreased use of AC/BO in the PACU (OR 0.34, p = 0.02); however, stratifying by procedure type did not find a difference in AC/BO use postoperatively. CONCLUSION Intravenous infusion of magnesium was found to decrease use of AC/BO in the PACU; however, this significance was lost after multivariable analysis stratifying by procedure type.
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Affiliation(s)
- Daniel Salevitz
- Department of Urology, Mayo Clinic Arizona, Mayo Clinic Phoenix, Phoenix, AZ, 85054, USA.
| | | | - Molly Klanderman
- Department of Quantitative Health Sciences, Mayo Clinic Scottsdale, Scottsdale, AZ, USA
| | - Lanyu Mi
- Department of Quantitative Health Sciences, Mayo Clinic Scottsdale, Scottsdale, AZ, USA
| | - Mark Tyson
- Department of Urology, Mayo Clinic Arizona, Mayo Clinic Phoenix, Phoenix, AZ, 85054, USA
| | - Mitchell Humphreys
- Department of Urology, Mayo Clinic Arizona, Mayo Clinic Phoenix, Phoenix, AZ, 85054, USA
| | - Lopa Misra
- Department of Anesthesiology, Mayo Clinic Phoenix, Phoenix, AZ, USA
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Ding Q, Yue S. A study of hemodynamic effects, postoperative recovery, and safety of esketamine (right handed) during flexible bronchoscopy under general anesthesia. Curr Med Res Opin 2024:1-8. [PMID: 38713585 DOI: 10.1080/03007995.2024.2331167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 03/12/2024] [Indexed: 05/09/2024]
Abstract
OBJECTIVE Flexible bronchoscopy during general anesthesia has become an indispensable tool. Anesthetics are widely utilized in flexible bronchoscopy (FB). This study delved into the application value of a subanesthetic dose of esketamine (ES) (right handed) in flexible bronchoscopy during general anesthesia. METHODS A sample of 160 patients who underwent flexible bronchoscopy during general anesthesia were selected as study subjects and were equally divided into the control and ES groups, with clinical baseline data (age, sex, body mass index, American Society of Anesthesiologists grading) collected. Hemodynamic parameters (mean artery pressure, heart rate, pulse blood oxygen saturation) at different time points, the onset time of anesthesia, surgery time, analgesia maintenance time, anesthesia awakening time, and perioperative adverse reactions were recorded. Visual analogue scale (VAS), Mini-Mental State Examination (MMSE), and quality of recovery-40 (QoR-40) scales were utilized for assessing post-surgery satisfaction, cognitive function, and post-surgery early recovery quality. RESULTS The hemodynamics were stable at each time point, but patients in the ES group were more stable than those in the control group. Patients in the ES group exhibited faster onset and awakening time of anesthesia, longer duration of analgesia, and lower total incidence of adverse reactions versus the control group. The patients' QoR-40 total scores in the ES group were improved versus the control group at 1 day after surgery. CONCLUSION Compared with fentanyl, the use of ES (right handed) in flexible bronchoscopy during general anesthesia produces more stable hemodynamics, faster onset and recovery time of anesthesia, longer duration of analgesia, lower incidence of adverse reactions, and improved early postoperative recovery quality in patients.
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Affiliation(s)
- Qin Ding
- Department of Anesthesiology, Huai'an Second People's Hospital (The Affiliated Huai'an Hospital of Xuzhou Medical University), Huaian, China
| | - Suyang Yue
- Department of Gastroenterology, Huai'an Second People's Hospital (The Affiliated Huai'an Hospital of Xuzhou Medical University), Huaian, China
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Xu H, Hao C, Wang X, Du J, Zhang T, Zhang X. Effect of Intraoperative infusion Magnesium Sulfate Infusion on Postoperative Quality of Recovery in Patients Undergoing Total Knee Arthroplasty: A Prospective, Double-Blind, Randomized Controlled Trial. Drug Des Devel Ther 2024; 18:919-929. [PMID: 38560523 PMCID: PMC10980840 DOI: 10.2147/dddt.s444896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/14/2024] [Indexed: 04/04/2024] Open
Abstract
Background Magnesium sulfate, an intravenous adjuvant, has recently attracted immense attention in multimodal analgesia. Previous studies confirmed the crucial role of magnesium sulfate in postoperative pain and nociceptive hypersensitivity. However, the effect of magnesium sulfate in multimodal analgesia on the quality of recovery (QoR) for elderly patients has not been thoroughly studied. Therefore, the present experiment aimed to investigate the effect of continuous intravenous magnesium sulfate on the quality of postoperative recovery in elderly patients undergoing total knee arthroplasty (TKA). Patients and Methods In this study, a total of 148 patients scheduled to undergo unilateral total knee arthroplasty were randomized into a magnesium sulfate group (Group M, n=68) and a control group (Group C, n=66) using a double-blind, randomized controlled trial. Before induction of anesthesia, Group M received intravenous magnesium sulfate (40 mg/kg) for 15 min, followed by a continuous infusion (15 mg/kg) until the end of the procedure. In the same manner, Group C received an infusion of the same amount of isotonic saline using the same method as the Group M. Results Compared with Group C, Group M had significantly better QoR-15 scores on postoperative day 1(POD1) than Group C (P <0.05). Analysis of the dimensions of QoR-15 scores indicated that Group M exhibited notably reduced levels of pain, and higher levels of emotional state and physical comfort than Group C (P <0.05). Furthermore, Group C had significantly higher numerical rating scale (NRS) scores at POD1 than Group M (P <0.05). Conclusion For elderly patients undergoing knee arthroplasty, magnesium sulfate can be used as an adjuvant in a multimodal analgesic regimen to reduce early postoperative pain and improve the quality of early postoperative recovery.
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Affiliation(s)
- Hai Xu
- Department of Anesthesiology, Graduate Training Base of Lianyungang First People’s Hospital of Jinzhou Medical University, Lianyungang, Jiangsu, People’s Republic of China
| | - Conghui Hao
- Department of Anesthesiology, Graduate Training Base of Lianyungang First People’s Hospital of Jinzhou Medical University, Lianyungang, Jiangsu, People’s Republic of China
| | - Xinxin Wang
- Department of Anesthesiology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People’s Republic of China
| | - Jingjing Du
- Department of Anesthesiology, Graduate Training Base of Lianyungang First People’s Hospital of Jinzhou Medical University, Lianyungang, Jiangsu, People’s Republic of China
| | - Tianyu Zhang
- Department of Anesthesiology, Graduate Training Base of Lianyungang First People’s Hospital of Jinzhou Medical University, Lianyungang, Jiangsu, People’s Republic of China
| | - Xiaobao Zhang
- Department of Anesthesiology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People’s Republic of China
- Department of Anesthesiology, The First Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, Jiangsu, People’s Republic of China
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Pahwa A, Gong H, Li Y. Enhanced recovery after elective spinal surgery: an Australian pilot study. JOURNAL OF SPINE SURGERY (HONG KONG) 2024; 10:30-39. [PMID: 38567012 PMCID: PMC10982920 DOI: 10.21037/jss-23-115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/10/2023] [Indexed: 04/04/2024]
Abstract
Background The principles of enhanced recovery after surgery (ERAS) aim to reduce the physiological stress of surgery which in turn improve clinical and health economic outcomes. There is ample evidence in literature supporting ERAS methodologies in other surgical specialties, but its adoption in spinal surgery, especially in Australia remains in infancy. The aim of this project is to describe the early experience with an evidence-based ERAS pathway for simple spine surgery, a first of its kind in Australia. Methods An ERAS protocol was designed using an evidenced-based review of the literature. The authors then conducted a prospective cohort analysis looking at outcome of patients undergoing elective spinal (lumbar and cervical) decompression surgery under ERAS principles by a single surgeon on the Westmead Hospital Campus between March 2021 to May 2023. Primary outcomes were patient length of stay (LOS), patient reported pain and disability scores and complications (including readmissions within 30 days and re-operation within 6 months). Secondary outcomes included predictors of failure for same-day discharge. Results A total of 52 patients underwent spinal decompression surgeries under the ERAS protocol. Overall 43 out of 52 patients (83.7%) were successfully discharged on the same day as their surgery. Patient reported outcomes were improved at 6 weeks and 6 months confirming durability of intervention. The rates of complications were similar to literature reported rates for simple lumbar or cervical decompression procedures and there were no readmissions within 30 days or re-operations within 6 months of surgery. Being of non-English speaking background [odds ratio (OR) =6.08, P=0.04] and from home alone (OR =10.25, P=0.03) were predictors of failure of same day discharge in this small cohort. Conclusions Implementation of ERAS protocols for simple spinal decompression surgeries is feasible and produces durable improved patient outcomes while reducing LOS in hospitals. Patient social factors can be predictive of lack of compliance.
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Affiliation(s)
- Anuj Pahwa
- Department of Neurosurgery, Westmead Hospital, Westmead, NSW, Australia
| | - Houchen Gong
- Department of Neurosurgery, Westmead Hospital, Westmead, NSW, Australia
| | - Yingda Li
- Department of Neurosurgery, Westmead Hospital, Westmead, NSW, Australia
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Dahake JS, Verma N, Bawiskar D. Magnesium Sulfate and Its Versatility in Anesthesia: A Comprehensive Review. Cureus 2024; 16:e56348. [PMID: 38633961 PMCID: PMC11021848 DOI: 10.7759/cureus.56348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/17/2024] [Indexed: 04/19/2024] Open
Abstract
In the field of general anesthesia, magnesium sulfate (MgSO4) has become a valuable adjunct because it provides a range of benefits that enhance and optimize conventional aesthetic procedures. This review highlights the various intra-anesthetic benefits of MgSO4 while examining its complex function in the treatment using anesthesia. Magnesium inhibits the release of acetylcholine at the motor endplate and blocks calcium channels at presynaptic nerve terminals. This reduces the amplitude of endplate potential and the excitability of muscle fibers, which increases the potency of a neuromuscular blockade by nondepolarizing neuromuscular blockers. This activity may lessen the need for primary muscle relaxants. Moreover, its capacity to potentially reduce the total amount of main aesthetic agents needed emphasizes its function in maximizing anesthesia dosage, ensuring sufficient depth while perhaps potentially reducing adverse effects linked with increased dosages. MgSO4's adaptable qualities present a viable path for improving anesthetic outcomes, possibly improving patient safety and improving surgical results.
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Affiliation(s)
- Janhavi S Dahake
- Anesthesia, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Neeta Verma
- Anesthesia, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Dushyant Bawiskar
- Sports Physiotherapy, Abhinav Bindra Targeting Performance, Bengaluru, IND
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Del Tedesco F, Sessa F, Xhemalaj R, Sollazzi L, Dello Russo C, Aceto P. Perioperative analgesia in the elderly. Saudi J Anaesth 2023; 17:491-499. [PMID: 37779570 PMCID: PMC10540995 DOI: 10.4103/sja.sja_643_23] [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: 07/22/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 10/03/2023] Open
Abstract
The administration of analgesic drugs in elderly patients should take into account age-related physiological changes, loss of efficiency of homeostatic mechanisms, and pharmacological interactions with chronic therapies. Underestimation of pain in patients with impaired cognition is often linked to difficulties in pain assessment. In the preoperative phase, it is essential to assess the physical status, cognitive reserve, and previous chronic pain conditions to plan effective analgesia. Furthermore, an accurate pharmacological history of the patient must be collected to establish any possible interaction with the whole perioperative analgesic plan. The use of analgesic drugs with different mechanisms of action for pain relief in the intraoperative phase is a crucial step to achieve adequate postoperative pain control in older adults. The combined multimodal and opioid-sparing strategy is strongly recommended to reduce side effects. The use of various adjuvants is also preferable. Moreover, the implementation of non-pharmacological approaches may lead to faster recovery. High-quality postoperative analgesia in older patients can be achieved only with a collaborative interdisciplinary team. The aim of this review is to highlight the perioperative pain management strategies in the elderly with a special focus on intraoperative pharmacological interventions.
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Affiliation(s)
- Filippo Del Tedesco
- Dipartimento di Scienze dell’emergenza, anestesiologiche e della rianimazione, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy
| | - Flaminio Sessa
- Dipartimento di Scienze dell’emergenza, anestesiologiche e della rianimazione, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy
| | - Rikardo Xhemalaj
- Dipartimento di Scienze dell’emergenza, anestesiologiche e della rianimazione, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy
| | - Liliana Sollazzi
- Dipartimento di Scienze dell’emergenza, anestesiologiche e della rianimazione, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Cinzia Dello Russo
- Dipartimento di Sicurezza e Bioetica, Sezione di Farmacologia, Università Cattolica Del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Department of Pharmacology and Therapeutics, Institute of Systems Molecular and Integrative Biology (ISMIB), University of Liverpool, Liverpool, United Kingdom
| | - Paola Aceto
- Dipartimento di Scienze dell’emergenza, anestesiologiche e della rianimazione, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, Rome, Italy
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Arianto AT, Soetrisno S, Purwoko P, Indarto D. The Effect of Remifentanil, MgSO4, or Remifentanil-MgSO4 as Neuroprotectors on BDNF, MAC, and Caspase-3 Levels in Wistar Rats with Traumatic Brain Injury. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.10893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND: Traumatic brain injury (TBI) can lead to cell death and neurologic dysfunction. Meanwhile, Remifentanyl is an opioid with potent analgesia, while magnesium sulfate (MgSO4) has antinociceptive properties that can prevent hemodynamic instability during laryngoscopy.
AIM: This study aims to examine the effect of remifentanil, MgSO4 and their combination on BDNF, MAC, and Caspase-3 levels in Wistar rat models with TBI.
METHODOLOGY: An experimental study was conducted on 30 male Wistar rats which were randomly divided into five groups. The control group (G1) received normal saline, the induced group (G2) received normal saline after TBI induction using the modified Feeney method, and the treated group (G3, G4, and G5) received remifentanil, MgSO4, and their combination after TBI induction. The rats’ brain tissues were analyzed for BDNF, MAC, and Caspase-3 levels using ELISA. The data were analyzed statistically with ANOVA followed by post hoc Multiple Comparison Test (p < 0.05).
RESULTS: Treatment with remifentanil, MgSO4 or the combination of both in TBI subjects reduced MAC and Caspase-3 but increased the BDNF level. The post hoc multiple comparisons showed significant differences in all groups except groups 3 and 5 in terms of MAC (p = 0.190) and Caspase-3 (p = 0.999). The combination of remifentanil-MgSO4 increased BDNF levels significantly.
CONCLUSION: The administration of remifentanil, MgSO4 , or their combination can serve as a neuroprotector in Wistar rat models with TBI by lowering MAC and Caspase-3 as well as increasing BDNF levels.
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Silva Filho SE, Dainez S, Gonzalez MAMC, Angelis F, Vieira JE, Sandes CS. Intraoperative Analgesia with Magnesium Sulfate versus Remifentanil Guided by Plethysmographic Stress Index in Post-Bariatric Dermolipectomy: A Randomized Study. Anesthesiol Res Pract 2022; 2022:2642488. [PMID: 36339775 PMCID: PMC9629917 DOI: 10.1155/2022/2642488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/25/2022] [Accepted: 10/11/2022] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Magnesium sulfate reduces pain scores and analgesic consumption. Its use as an analgesic resource in opioid-free or opioid-sparing techniques have also been tested. The evaluation of the antinociceptive potency of drugs and doses indirectly, through hemodynamic oscillations has been questioned. A relatively new algorithm called the plethysmographic stress index has been considered sensitive and relatively specific as a parameter for assessing the need for intraoperative analgesia. OBJECTIVES The aim of this trial was to assess the intraoperative analgesic capacity of magnesium sulfate compared to remifentanil. The secondary objectives were propofol consumption and its latency, the consumption of opioids, ephedrine, and cisatracurium. Patients and Methods. Forty patients scheduled for post-bariatric dermolipectomy were randomly assigned to two groups to receive total intravenous anesthesia with target-controlled hypnosis induced with propofol. Analgesia was obtained in the remifentanil group with remifentanil at an initial dose of 0.2 μg·kg-1·min-1 and in the magnesium sulfate group with magnesium sulfate 40 mg·kg-1 + 10 mg·kg-1·h-1. RESULTS There was no statistical hemodynamic difference between the groups before and after orotracheal intubation (p = 0.062) and before and after the surgical incision (p = 0.656). There was also no statistical difference in the variation of mean arterial pressure before and after intubation (p = 0.656) and before and after the surgical incision (p = 0.911). There was similar consumption of cisatracurium, ephedrine, and postoperative opioids between the groups. Some patients in the magnesium sulfate group needed more intraoperative fentanyl and propofol, although the latency of propofol was similar in both the groups. CONCLUSION We conclude that using magnesium sulfate in intravenous general anesthesia for post-bariatric dermolipectomy is related to a significant reduction in opioid consumption without compromising hemodynamic stability. Overall, PSI monitoring was helpful in driving the analgesic strategy. The use of magnesium sulfate proved to be an important adjunct in the scenario presented, allowing the use of opioids to be avoided in certain cases. We found no statistical differences in the consumption of neuromuscular blocker and vasoconstrictor. Substituting opioids for magnesium sulfate leads to an increase in propofol consumption in the scenario presented. Studies with a larger sample are needed to corroborate the results presented and evaluate other potential advantages in reducing opioid consumption.
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Affiliation(s)
- S. E. Silva Filho
- Department of Anesthesiology, Hospital da Sociedade Portuguesa de Beneficência de Santos, Santos, SP, Brazil
| | - S. Dainez
- Department of Anesthesiology, Hospital da Sociedade Portuguesa de Beneficência de Santos, Santos, SP, Brazil
| | - M. A. M. C. Gonzalez
- Department of Anesthesiology, Hospital da Sociedade Portuguesa de Beneficência de Santos, Santos, SP, Brazil
| | - F. Angelis
- Department of Anesthesiology, Hospital da Sociedade Portuguesa de Beneficência de Santos, Santos, SP, Brazil
| | - J. E. Vieira
- Department of Anesthesiology, Universidade de Sao Paulo, Santos, SP, Brazil
| | - C. S. Sandes
- Hospital Santos Dumont, Sao Jose Dos Campos, SP, Brazil
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Morsy AG, Atallah MM, El-Motleb EAA, Tawfik MM. Different modalities of analgesia in open heart surgeries in Mansoura University. Int J Health Sci (Qassim) 2022:1846-1869. [DOI: 10.53730/ijhs.v6ns4.6375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
Background: Opioid usage in cardiac surgery is considered to be the corner stone in management. Inadequate pain control after cardiac surgery complicates patient recovery and increases the load on healthcare services. Multimodal analgesia can be used to achieve better analgesic effect and improves patient outcome. Material and methods: A total of 90 patients undergoing cardiac surgery with median sternotomy were randomly allocated equally into three groups intraoperatively where first group received continuous infusion of high dose opioids, second group received boluses of low dose opioids and third group received multimodal non opioid analgesics including dexmedetomidine, ketamine and magnesium sulphate. All patients received the same post-operative analgesic regimen consists of morphine patient controlled analgesia (PCA). Results: Patients in multimodal non opioid group had more stable hemodynamics intra and postoperatively. Also, patients in multimodal group had lower pain scores extubation, earlier extubation, shorter ICU stay, earlier mobilization and earlier return of bowel movements compared to patients of both groups received intraoperative higher opioid doses.
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