Changing Pain Management Strategy from Opioid-Centric towards Improve Postoperative Cognitive Dysfunction with Dexmedetomidine

2021 ◽  
Vol 22 ◽  
Author(s):  
Chunhong Su ◽  
Xiaojun Ren ◽  
Hongpei Wang ◽  
Xiaomei Ding ◽  
Jian Guo

Objective: This study was aimed to investigate the effectiveness of dexmedetomidine (DEX) on improving the level of pain and disability to find out the possible correlation between psychological factors with pain management satisfaction and physical function in patients with femoral neck fractures. Methods: One hundred twenty-four adult patients with stable femoral neck fractures (type I and II, Garden classification) who underwent internal fixation, were prospectively enrolled including 62 patients in the DEX group and 62 patients in the control group. The magnitude of disability using Harris Hip Score, Postoperative Cognitive Dysfunction (POCD) using Mini-Mental State Examination (MMSE score), Quality of Recovery (QoR-40), pain-related anxiety (PASS-20), pain management and pain catastrophizing scale (PCS) were recorded on the first and second day after surgery. Results: The DEX group on the first and second days after surgery exhibited higher quality of recovery scores, greater satisfaction with pain management, low disability scores, less catastrophic thinking, lower pain anxiety, greater mini mental state examination scores and less opioid intake and the differences were statistically significant compared with the control group (P<0.001). Emergence agitation and incidence of POCD were significantly less in the DEX group (P<0.001). Decreased disability was associated with less catastrophic thinking and lower pain anxiety, but not associated with more opioid intake (P<0.001). Higher QoR-40 scores had a negative correlation with more catastrophic thinking and more opioid intake (P<0.001). Greater satisfaction with pain management was correlated with less catastrophic thinking and less opioid intake (P<0.001). Conclusion: Using DEX as an adjunct to anesthesia could significantly improve postoperative cognitive dysfunction and the quality of recovery and these improvements were accompanied by decrease in pain, emergence agitation, and opioid consumption by DEX administration. Since pain relief and decreased disability were not associated with prescribing greater amounts of opioid intake in the patients, improving psychological factors, including reducing catastrophic thinking or self-efficacy about pain, could be a more effective strategy to reduce pain and disability, meanwhile reducing opioid prescription in the patients. Our findings showed that DEX administration is safe sedation with anti-inflammatory, analgesic and antiemetic effects and it could help change pain management strategy from opioid-centric towards improved postoperative cognitive dysfunction.

2021 ◽  
Vol 16 (1) ◽  
pp. 37-42
Author(s):  
Nikolay Glushkov ◽  
◽  
Timofey Gorshenin ◽  
Mariya Privalova ◽  
Grigoriy Gugalev ◽  
...  

The problem of preserving the quality of life in the postoperative period, one of the criteria of which is the cognitive function, retains its relevance. In patients with advanced and senile age, after undergoing surgery, cognitive disorders are swept aside, which, according to various authors, reaches 64 %. Postoperative cognitive dysfunction was studied in 168 elderly and elderly patients operated on for complications of colon cancer. Patients were divided into two groups. Patients of the control group were operated on operations conventionally, the main one — laparoscopically, using endovideosurgical technologies. Cognitive status was assessed before the operation, as well as on the first, third and seventh days of the postoperative period using the MMSE test (abbr. English Mini Mental State Examination). The incidence of postoperative cognitive dysfunction in both groups was traced. In the development of postoperative cognitive disorders, along with such factors as general anesthesia, age, aggravated neurological history, depressive disorders, operative trauma plays an important role. The use of endoscopic technologies allows reliably reducing the risk of postoperative cognitive impairment, which in turn has a beneficial effect on the postoperative period.


Trials ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Jae Yen Song ◽  
Hoon Choi ◽  
Minsuk Chae ◽  
Jemin Ko ◽  
Young Eun Moon

Abstract Background Because of the indiscriminate use of opioids during the perioperative period, opioid-free anesthesia (OFA) has been increasingly required. Nevertheless, the studies on the detailed techniques and effects of OFA are not sufficient. The Quality of Recovery-40 (QoR-40) questionnaire is a validated assessment tool for measuring recovery from general anesthesia. However, no study has used the QoR-40 to determine if OFA leads to better recovery than standard general anesthesia. Therefore, we aim to perform this study to determine the effects of OFA using dexmedetomidine and lidocaine on the quality of recovery as well as the various postoperative outcomes. Methods The participants (n = 78) will be allocated to one of the two groups; the study group will receive bolus and infusion of dexmedetomidine and lidocaine, and the control group will receive remifentanil infusion during general anesthesia for gynecological laparoscopy. The other processes including anesthetic and postoperative care will be performed similarly in the two groups. Intraoperative hemodynamic, anesthetic, and nociceptive variables will be recorded. Postoperative outcomes such as QoR-40, pain severity, and opioid-related side effects will be assessed. Additionally, an ancillary cytokine study (inflammatory cytokine, stress hormone, and reactive oxygen species) will be performed during the study period. Discussion This will be the first study to determine the effect of OFA, using the combination of dexmedetomidine and lidocaine, on the quality of recovery after gynecological laparoscopy compared with standard general anesthesia using remifentanil. The findings from this study will provide scientific and clinical evidence on the efficacy of OFA. Trial registration ClinicalTrials.gov NCT04409964. Registered on 28 May 2020


2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Mohamed W. Zakaria ◽  
Reem I. El-Korashy ◽  
Mostafa O. Shaheen ◽  
Samah Selim ◽  
Kwashi J. Amum

Abstract Background Cognitive dysfunction in idiopathic interstitial pneumonia (IIP) is an important clinical co-morbidity that is associated with impaired lung function. The aim of the work is to assess cognitive function in major IIP and to find out the relation between cognitive dysfunction and the oxygenation parameters. Results Fifty individuals were involved in the study; 30 patients with major IIP and 20 healthy individuals. Patients with IIP had significantly lower mini mental state examination (MMSE) score compared to the control group (P < 0.001). Wechsler Deterioration Index (WDI) revealed that 33.3% (n = 10) of the patients with IIP had sure cognitive impairment and 26.6% (n = 8) had ongoing cognitive deterioration. Patients with idiopathic pulmonary fibrosis (IPF) had lower cognitive function than other IIP. Conclusion There is an impairment of cognitive function in patients with major IIP, particularly in IPF, as measured by WDI and MMSE. Further large studies are needed to assess the possible predictors of cognitive impairment and their effects on the patients’ outcome.


2019 ◽  
Vol 31 (6) ◽  
pp. 894-901 ◽  
Author(s):  
Anna A. Ezhevskaya ◽  
Alexei M. Ovechkin ◽  
Zhanna B. Prusakova ◽  
Valery I. Zagrekov ◽  
Sergey G. Mlyavykh ◽  
...  

OBJECTIVESurgical trauma is known to result in systemic inflammatory changes that can lead to postoperative cognitive dysfunction. In the present study, the authors compared the effects of an epidural anesthesia protocol to those of traditional anesthesia with regard to postoperative inflammatory changes, cellular immunity, and cognitive dysfunction.METHODSForty-eight patients, ages 45–60 years, underwent multilevel thoracolumbar decompression and fusion and were randomly assigned to one of two groups: group 1 (27 patients) had combined epidural and general anesthesia, followed by epidural analgesia for 48 hours after surgery, and group 2 (21 patients) had general anesthesia, followed by traditional opioid pain management after surgery. At multiple time points, data on pain control, cognitive function, cellular immunity, and inflammatory markers were collected.RESULTSGroup 1 patients demonstrated lower pain levels, less systemic inflammation, less cellular immune dysfunction, and less postoperative cognitive dysfunction than group 2 patients.CONCLUSIONSThe use of combined epidural and general anesthesia followed by postoperative epidural analgesia during the first 48 hours after multilevel thoracolumbar decompression and fusion surgery had a significant positive effect on pain management, cellular immune function, systemic inflammation, and postoperative cognitive function.Clinical trial registration no.: 115080510080 (http://rosrid.ru)


Open Heart ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. e001569
Author(s):  
Fredrike Blokzijl ◽  
Frederik Keus ◽  
Saskia Houterman ◽  
Willem Dieperink ◽  
Iwan C C van der Horst ◽  
...  

ObjectiveThis study aimed to explore the influence of coronary artery bypass grafting (CABG) on both postoperative cognitive dysfunction and quality of life (QoL) and the association between the two patient-related outcomes.MethodsIn a prospective, observational cohort study, patients with elective, isolated CABG were included. Cognitive function was assessed using the Cogstate computerised cognitive test battery preoperatively, 3 days and 6 months after surgery. QoL was measured preoperatively and at 6 months using the RAND-36 questionnaire including the Physical Component Score (PCS) and the Mental Component Score (MCS). Regression analysis, with adjustment for confounders, was used to evaluate the association between postoperative cognitive dysfunction and QoL.ResultsA total of 142 patients were included in the study. Evidence of persistent cognitive dysfunction was observed in 33% of patients after 6 months. At 6 months, the PCS had improved in 59% and decreased in 21% of patients, and the MCS increased in 49% and decreased in 29%. Postoperative cognitive changes were not associated with QoL scores.ConclusionsPostoperative cognitive dysfunction and decreased QoL are common 6 months after surgery, although cognitive function and QoL were found to have improved in many patients at 6 months of follow-up. Impaired cognitive function is not associated with impaired QoL at 6 months.Trial registration numberNCT03774342.


2018 ◽  
Vol 16 ◽  
pp. 205873921879670
Author(s):  
Jin Wang ◽  
Xinyi Li ◽  
Huisheng Wu ◽  
Jianjuan Ke ◽  
Zongze Zhang ◽  
...  

Anesthetics are considered to be one of the important inducing factors of postoperative cognitive dysfunction (POCD). The hippocampal region of the rat is one of the action sites of general anesthesia drugs. L 655,708, a reverse agonist of gamma aminobutyric acid (GABA) receptor, can significantly improve short-term memory dysfunction in mice after anesthetized with isoflurane. So the purpose of this study is to investigate the effects of L-655,708 on expression of GABA, glutamate (GLU), and beta-endorphin (β-EP) in the dentate gyrus region of the hippocampus and cognition of rats anesthetized with propofol. In all, 30 male Sprague–Dawley (SD) rats were randomly allocated into the control group, sham group, and L-655,708 group, with 10 in each group. The cognitive function of rats was measured by Morris water maze before and 1 h after administration. Then the rats were sacrificed for brain tissues. Immunohistochemistry was used to study the expression of GABA, GLU, and β-EP in the hippocampus of anesthetized rats in each group. Compared with the control group, the latency of the sham group and L-655,708 group were significantly prolonged after administration ( P < 0.05). However, L-655,708 could shorten the prolonged latency ( P < 0.05). There was no significant difference in times of accessing original platform area between the three groups before and after medication ( P > 0.05). The expression level of GABA in the dentate gyrus region of hippocampus of rats in the sham group was significantly higher than that in the control group ( P < 0.05), while the expression level in the L-655,708 group was significantly lower than that in the sham group ( P < 0.05). No significant difference was found in the expression of GLU in the dentate gyrus region of hippocampus of rats in each group ( P > 0.05). Compared with the control group, the expression of β-EP was significantly lower in the dentate gyrus region of the hippocampus of sham group rats ( P < 0.05). However, the expression of β-EP in the L-655,708 group was significantly higher than that in the sham group ( P < 0.05). Cognitive dysfunction in rats anesthetized with propofol may be related to high expression of GABA and low expression of β-EP in the hippocampus. The mechanism of L-655,708 in reducing the cognitive impairment in propofol anesthetized rats may be bound up with down-regulating the expression of GABA and increasing the expression of β-EP in the hippocampus.


2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Xi Zhao ◽  
Ze-qing Huang

Abstract Background Postoperative cognitive dysfunction (POCD) is a common condition after general anesthesia (GA). Previous studies have reported that propofol can ameliorate the occurrence of such disorder. However, its results are still inconsistent. Therefore, this systematic review will assess the efficacy and safety of propofol on POCD after GA. Methods Literature sources will be sought from inception to the present in Cochrane Library, MEDLINE, EMBASE, PsycINFO, Web of Science, Scopus, Allied and Complementary Medicine Database, Chinese Biomedical Literature Database, and China National Knowledge Infrastructure for randomized controlled trials (RCTs) assessing the administration of propofol on POCD after GA. All searches will be carried out without limitations to language and publication status. Outcomes comprise of cognitive impairments changes, impairments in short-term memory, concentration, language comprehension, social integration, quality of life, and adverse events. Cochrane risk of bias tool will be utilized to assess study quality. We will evaluate the quality of evidence for each outcome using Grading of Recommendations Assessment, Development and Evaluation approach. A narrative synthesis or a meta-analysis will be undertaken as appropriate. Discussion This study will systematically and comprehensively search literature and integrate evidence on the efficacy and safety of propofol on POCD after GA. Our findings will be of interest to clinicians and health-related policy makers. Systematic review registration PROSPERO CRD42020164096


2016 ◽  
Vol 44 (6) ◽  
pp. 1182-1190 ◽  
Author(s):  
Chengmao Zhou ◽  
Yu Zhu ◽  
Zhen Liu ◽  
Lin Ruan

Objective We undertook a meta-analysis to investigate the effect of dexmedetomidine on postoperative cognitive dysfunction (POCD). Methods We searched PubMed, EMBASE, the Cochrane Library, CNKI and Google Scholar to find randomized controlled trials (RCTs) of the influence of dexmedetomidine on POCD in elderly adults who had undergone general anaesthesia. Two researchers independently screened the literature, extracted data, and evaluated methodologic quality against inclusion and exclusion criteria. We used RevMan 5.2 to undertake our meta-analysis. Results Thirteen RCTs were included. Compared with controls, dexmedetomidine: 1) significantly reduced the incidence of POCD (relative risk = 0.59, 95% confidence interval [CI] 0.45–2.95) and improved Mini-Mental State Examination (MMSE) score (mean difference, MD = 1.74, 95% CI 0.43–3.05) on the first postoperative day; and 2) reduced the incidence of POCD after the first postoperative day (MD = 2.73, 95% CI 1.33–4.12). Conclusion Dexmedetomidine reduces the incidence of POCD and improves postoperative MMSE score.


2015 ◽  
Vol 13 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Lívia Stocco Sanches Valentin ◽  
Ricardo Pietrobon ◽  
Wagner de Aguiar Junior ◽  
Ruth Pinto Camarão Rios ◽  
Mariane Galzerano Stahlberg ◽  
...  

Objective To investigate the adequacy of the neuropsychological test battery proposed by the International Study of Postoperative Cognitive Dysfunction to evaluate this disorder in Brazilian elderly patients undergoing surgery under general anesthesia. Methods A neuropsychological assessment was made in patients undergoing non-cardiac surgery under general anesthesia, aged over 65 years, literate, with no history of psychiatric or neurological problems and score on the Mini Mental State Examination at or above the cutoff point for the Brazilian population (>18 or >23) according to the schooling level of the subject. Eighty patients were evaluated by a trained team of neuropsychologists up to 24 hours before elective surgery. Results Among the patients evaluated, one was excluded due to score below the cutoff point in the Mini Mental State Examination and two did not complete the test battery, thus remaining 77 patients in the study. The mean age was 69±7.5 years, and 62.34% of the subjects had ±4 years of study. The subjects had significantly lower averages than expected (p<0.001) for normative tables on neuropsychological tests. Conclusion The study demonstrated the applicability of the instruments in the Brazilian elderly and low schooling level population, but suggested the need to determine cutoff points appropriate for these individuals, ensuring the correct interpretation of results. This battery is relevant to postoperative follow-up evaluations, favoring the diagnosis of postoperative cognitive dysfunction in patients undergoing different types of surgery and anesthetic techniques.


2002 ◽  
Vol 97 (4) ◽  
pp. 931-937 ◽  
Author(s):  
Tijani Issioui ◽  
Kevin W. Klein ◽  
Paul F. White ◽  
Mehernoor F. Watcha ◽  
Gary D. Skrivanek ◽  
...  

Background Nonsteroidal antiinflammatory drugs are commonly administered as part of a multimodal regimen for pain management in the ambulatory setting. This randomized, double-blinded, placebo-controlled study was designed to compare the analgesic effect of oral rofecoxib, a cyclooxygenase-2 inhibitor, and acetaminophen when administered alone or in combination prior to outpatient otolaryngologic surgery. Methods A total of 143 healthy outpatients undergoing elective otolaryngologic surgery were assigned to one of four study groups: group 1 = control (500 mg vitamin C); group 2 = 2 g acetaminophen; group 3 = 50 mg rofecoxib; or group 4 = 2 g acetaminophen and 50 mg rofecoxib. The first oral dose of the study medication was taken 15-45 min before surgery, and a second dose of the same medication was administered on the morning after surgery. Recovery times, side effects, and the need for rescue analgesics were recorded. Follow-up evaluations were performed at 24 and 48 h after surgery to assess postdischarge pain, analgesic requirements, nausea, and patient satisfaction with their postoperative pain management and quality of recovery. Peak pain scores and the need for rescue analgesic medication were used as the endpoints for estimating efficacy of the study drugs, while cost to achieve complete satisfaction with analgesia was used in the cost-effectiveness analysis. Results Premedication with rofecoxib (50 mg) was significantly more effective than either placebo or acetaminophen (2 g) in reducing the peak postoperative pain, the need for analgesic medication, and improving the quality of recovery and patient satisfaction. Moreover, the addition of acetaminophen failed to improve its analgesic efficacy. An expenditure for rofecoxib of 16.76 US dollars (95% confidence interval, 7.89 to 21.03 US dollars) and 30.24 US dollars (95% confidence interval, 5.25 to 54.20 US dollars) would obtain complete satisfaction with pain control in one additional patient who would not have been satisfied if placebo or acetaminophen, respectively, had been administered prior to surgery. Conclusions Rofecoxib, 50 mg administered orally, decreased postoperative pain and the need for analgesic rescue medication after otolaryngologic surgery. The addition of 2 g oral acetaminophen failed to improve its analgesic efficacy.


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