Quality of recovery in the perioperative setting: A narrative review

Intraoperative dexmedetomidine on postoperative sleep disturbance in older patients undergoing major abdominal surgery: A randomized controlled trial protocol

Background

Postoperative sleep disturbance (PSD) occurs frequently in patients who undergo major abdominal surgical procedures. Dexmedetomidine is a promising agent to improve the quality of sleep for surgical patients. We designed this trial to investigate the effects of two different doses of intraoperative dexmedetomidine on the occurrence of PSD in elderly patients who have major abdominal surgery.

Methods

In this randomized, double-blind, controlled trial, 210 elderly patients aged ≥65 years will be randomized, with an allocation ratio of 1:1:1, to two dexmedetomidine groups (intraoperative infusion of 0.3 or 0.6 μg/kg/h) and a normal saline placebo group. The primary endpoint is the occurrence of PSD on the first night after surgery, assessed using the Athens Insomnia Scale. The secondary endpoints are (1) the incidence of PSD during the 2nd, 3rd, 5th, 7th, and 30th nights postoperatively; (2) pain at rest and on movement at 24 and 48 h postoperatively, assessed using the Numerical Rating Scale; (3) the incidence of postoperative delirium during 0-7 days postoperatively or until hospital discharge, assessed using the 3-min Confusion Assessment Method; (4) depressive symptoms during 0-7 days postoperatively or until hospital discharge, assessed using the 15-items Geriatric Depression Scale; and (5) quality of recovery on postoperative days 1, 2, and 3, assessed using the 15-items Quality of Recovery Scale. Patients' sleep data will also be collected by Xiaomi Mi Band 7 for further analysis.

Discussion

The findings of this trial will provide clinical evidence for improving the quality of sleep among elderly patients undergoing major abdominal surgery.

Ethics and dissemination

This trial was approved by the Ethics Committee of the First Affiliated Hospital of Soochow University (No. 2023-160). The results will be published in a peer-reviewed journal.

Trial registration

Chinese Clinical Trial Registry (ChiCTR2300073163).

Early Quality of Recovery after Elective Cardiothoracic and Aortic Surgeries in Adult Patients: A Pilot Report

BACKGROUND

Patient-centered outcome measures should be evaluated postoperatively as the recovery after surgery varies between patients. We aimed to evaluate the feasibility, reliability, and trajectory of the quality of recovery-15 (QoR-15) in patients undergoing cardiothoracic and aortic surgeries.

MATERIALS AND METHODS

This retrospective study included adult patients who underwent elective cardiothoracic and aortic surgeries. The primary outcome was the QoR-15, with a minimal clinically important difference of 6.8, assessed on postoperative days (POD) 2, 4, and 7. The final analysis included patients with at least one valid outcome. Feasibility and reliability were assessed by the successful completion rate on each POD and using Cronbach's alpha of the QoR-15 on POD 4. A linear mixed model was used to evaluate the trajectory of the postoperative QoR-15 scores.

RESULTS

Of the 36 eligible patients, 30 with a mean age of 70 years were included in the final analysis. The successful completion rates on POD 2, 4, and 7 were 72.7%, 87.8%, and 87.8%, respectively. The mean QoR-15 scores on POD 2, 4, and 7 were 89.9, 98.0, and 108.3, respectively. The QoR-15 scores on POD 2 and 4 were not statistically different (P = 0.06) but were clinically significant. The QoR-15 score on POD 7 was statically (P < 0.001) and clinically higher than the QoR-15 score on POD 2. Cronbach's alpha for the QoR-15 score measured on POD 4 was 0.85.

CONCLUSION

The QoR-15 is a feasible and valid measurement after elective cardiothoracic surgery, which increases significantly over time after surgery.

Effects of perioperative intravenous lidocaine and esketamine on the quality of recovery and emotional state of patients after thyroidectomy: A randomised, double-blind, controlled trial

Background and Aims

Perioperative intravenous (IV) infusions of lidocaine and esketamine reduce postoperative pain, but there are few studies on the quality of recovery and patients' emotional states postoperatively. We aimed to explore the effects of perioperative IV lidocaine and esketamine on the quality of recovery and emotional state after thyroidectomy.

Methods

In this randomised trial, 137 patients undergoing thyroidectomy were randomly assigned to three groups: a lidocaine group (Group L), an esketamine group (Group E) and a normal saline placebo group (Group C). The primary outcome was the Quality of Recovery 40 (QoR-40) on postoperative days (PODs) 1 and 2. The secondary outcomes included Self-Rating Anxiety Scale (SAS) and Self-Rating Depression Scale (SDS) scores on days 1 and 2 after surgery, pain scores, opioid consumption and incidence of postoperative nausea and vomiting (PONV). Statistical analysis was performed using the one-way analysis of variance (ANOVA), the Kruskal-Wallis and Chi-square tests.

Results

The global QoR-40 scores in groups L and E on POD 1 and POD 2 were significantly higher than in group C (P < 0.001). The SAS and SDS scores on POD 1 and POD 2 in groups L and E were significantly lower than in group C (P < 0.05). There were statistically significant differences in Numerical Rating Scale (NRS) scores among the three groups at 1 h, 2 h, 6 h and 12 h (P < 0.05).

Conclusion

Perioperative IV lidocaine and esketamine improve the quality of postoperative recovery and the emotional state of patients undergoing thyroidectomy.

Effect of ultrasound-guided bilateral superficial cervical plexus block versus perioperative intravenous lidocaine infusion on postoperative quality of recovery in patients undergoing thyroidectomy: A randomised double-blind comparative trial

Background and Aims

Recent studies have found that ultrasound-guided (USG) bilateral superficial cervical plexus block (BSCPB) and intravenous infusion of lidocaine (IVL) have the potential to improve the quality of postoperative recovery. This study aimed to investigate and compare their effects on postoperative quality of recovery in patients undergoing thyroidectomy.

Methods

A total of 135 patients were randomised to Group N: BSCPB with 10 mL 0.75% ropivacaine on each side, Group L: intravenous lidocaine (1.5 mg/kg for 10 min, followed by 1.5 mg/kg/h) and Group C: intravenous saline combined with BSCPB saline. The primary objective was quality of recovery-40 (QoR-40). Other parameters compared were numeric rating pain scale (NRS) score, haemodynamic data, opioid dosage and incidence of adverse effects. Statistical analysis was performed using the one-way analysis of variance (ANOVA), the Kruskal-Wallis test and the Chi-square test.

Results

Compared to Group C, both groups N and L had higher QoR-40 total scores as well as scores indicating physical comfort, emotional state and pain dimensions on postoperative day (POD) 1 and POD2 (P < 0.001). The QoR-40 total and pain dimension scores in Group N were higher on POD1 and POD2 (P < 0.05). The NRS scores and the change in haemodynamics were lower in Group N compared to groups L and C (P < 0.05). The results of other parameters were lower in groups N and L than in Group C (P < 0.05).

Conclusion

USG BSCPB and IVL are comparable in improving the quality of postoperative recovery in patients undergoing thyroidectomy.

Measuring quality of recovery (QoR-15) after degenerative spinal surgery: A prospective observational study

Introduction

The Quality of Recovery (QoR-15) score evaluates patient's recovery after surgery and anesthesia. There is a lack of studies focusing on the patients' quality of recovery in the early post-discharge phase after elective lumbar spine surgery.

Research question

We aimed to identify the QoR-15 score in patients who underwent surgery for degenerative low back conditions. Furthermore, we aimed to identify the individual items of the QoR-15 that are crucial for the patients' quality of recovery.

Material and methods

The study was conducted at a spine center in Denmark from December 2021 to September 2022. Data were collected, using a mobile health application, preoperatively and at 3 time points after hospital discharge. Descriptive analysis followed by within-subjects longitudinal repeated measures was conducted. The individual items of the QoR-15 score were explored using a heatmap.

Results

Data from 46 patients were analysed. The mean QoR-15 sum score at baseline was 105.4 ± 18.3. The mean QoR-15 sum scores were 108.1 ± 19.2 on post-discharge day 1, 118.5 ± 17.4 on day 7, and 120.7 ± 20.9 on day 14. The mean QoR-15 score from day 1 to day 7 improved significantly. Eight of the 15 items influenced the overall QoR-15 score.

Discussion and conclusion

This study applied the QoR-15 score in lumbar spine surgery patients. We identified specific items from the QoR-15 scale that are crucial to improving patients' recovery after hospital discharge. Further research is needed to identify specific needs in the post-discharge period in this group of patients.

The effect of multimodal care based on Peplau's interpersonal relationship theory on postoperative recovery in lung cancer surgery: a retrospective analysis

BACKGROUND

Lung cancer remains a major global health concern due to its high incidence and mortality rates. With advancements in medical treatments, an increasing number of early-stage lung cancer cases are being detected, making surgical treatment the primary option for such cases. However, this presents challenges to the physical and mental recovery of patients. Peplau known as the "mother of psychiatric associations" has formulated a theory of interpersonal relationships in nursing. Through effective communication between nurses and patients over four periods, she has established a good therapeutic nurse-patient relationship. Therefore, this study aimed to explore the effect of perioperative multimodal nursing based on Peplau's interpersonal relationship theory on the rehabilitation of patients with surgical lung cancer.

METHODS

We retrospectively analyzed 106 patients with non-small cell lung cancer who underwent thoracoscopic lobectomy at our department between June 2021 and April 2022. Patients were categorized into two groups according to the different nursing intervention techniques. The Peplau's group comprised 53 patients who received targeted nursing interventions, and the control group comprised 53 patients who received conventional nursing care. We observed the patients' illness uncertainty, quality of life, and clinical symptoms in both groups.

RESULTS

Patients in the Peplau's group had significantly lower illness uncertainty scores and a significantly higher quality of recovery than those in the control group. However, there were no significant differences in length of post-anesthesia care unit stay, complication rates, and visual analog scores between both groups.

CONCLUSION

The multimodal perioperative nursing based on Peplau's interpersonal relationship theory not only reduces the illness uncertainty of patients with lung cancer surgery and improves their QoR but also expands the application of this theory in clinical practice, guiding perioperative nursing of patients with lung cancer.

IMPLICATIONS

These findings provide practical information for standardized care in a hectic anesthetic care setting.

IMPACT

The assessed anesthesia nursing model helps reduce uncertainty and promote early recovery in patients with cancer at various stages of their disease, which expands the scope of therapeutic practice and existing theories. It also serves as a guide for care in the anesthesia recovery room.

REPORTING METHOD

We adhered to the relevant Equator guidelines and the checklist of items in the case-control study report.

PATIENT OR PUBLIC CONTRIBUTION

Patients cooperated with medical staff to complete relevant scales.

Efficacy of transcranial direct current stimulation for improving postoperative quality of recovery in elderly patients undergoing lower limb major arthroplasty: a randomized controlled substudy

Background

Previous studies have demonstrated improvements in motor, behavioral, and emotional areas following transcranial direct current stimulation (tDCS), but no published studies have reported the efficacy of tDCS on postoperative recovery quality in patients undergoing lower limb major arthroplasty. We hypothesized that tDCS might improve postoperative recovery quality in elderly patients undergoing lower limb major arthroplasty.

Methods

Ninety-six patients (≥65 years) undergoing total hip arthroplasty (THA) or total knee arthroplasty (TKA) were randomized to receive 2 mA tDCS for 20 min active-tDCS or sham-tDCS. The primary outcome was the 15-item quality of recovery (QoR-15) score on postoperative day one (Т2). Secondary outcomes included the QoR-15 scores at the 2nd hour (T1), the 1st month (Т3), and the 3rd month (Т4) postoperatively, numeric rating scale scores, and fatigue severity scale scores.

Results

Ninety-six elderly patients (mean age, 71 years; 68.7% woman) were analyzed. Higher QoR-15 scores were found in the active-tDCS group at T2 (123.0 [114.3, 127.0] vs. 109.0 [99.3, 115.3]; median difference, 13.0; 95% CI, 8.0 to 17.0; p < 0.001). QoR-15 scores in the active-tDCS group were higher at T1 (p < 0.001), T3 (p = 0.001), and T4 (p = 0.001). The pain scores in the active-tDCS group were lower (p < 0.001 at motion; p < 0.001 at rest). The fatigue degree scores were lower in the active-tDCS group at T1 and T2 (p < 0.001 for each).

Conclusion

tDCS may help improve the quality of early recovery in elderly patients undergoing lower limb major arthroplasty.

Clinical trial registration

The trial was registered at the China Clinical Trial Center (ChiCTR2200057777, https://www.chictr.org.cn/showproj.html?proj=162744).

Effects of preoperative nutritional status on postoperative quality of recovery: a prospective observational study

Quality of Recovery-15 (QoR-15) has received attention as a postoperative patient-reported outcome measure. Preoperative nutritional status has negative effects on postoperative outcomes; however, these associations have not yet been investigated. We included inpatients aged ≥ 65 years who underwent elective abdominal cancer surgery under general anaesthesia between 1 June 2021 and 7 April 2022 at our hospital. Preoperative nutritional status was assessed using the Mini Nutritional Assessment Short-Form (MNA-SF), and patients with an MNA-SF score ≤ 11 were categorised into the poor nutritional group. The outcomes in this study were the QoR-15 scores at 2 d, 4 d and 7 d after surgery, which were compared between groups by unpaired t test. Multiple regression analysis was applied to assess the effects of poor preoperative nutritional status on the QoR-15 score on postoperative day 2 (POD 2). Of the 230 included patients, 33·9 % (78/230) were categorised into the poor nutritional status group. The mean QoR-15 value was significantly lower in the poor nutritional group than in the normal nutritional group at all postoperative time points (POD 2:117 v. 99, P = 0·002; POD 4:124 v. 113, P < 0·001; POD 7:133 v. 115, P < 0·001). Multiple analyses showed that poor preoperative nutritional status was associated with the QoR-15 score on POD 2 (adjusted partial regression coefficient, -7·8; 95 % CI -14·9, -0·72). We conclude that patients with a poor preoperative nutritional status were more likely to have a lower QoR-15 score after abdominal cancer surgery.

Quality of recovery in hospital and disability-free survival at three months after major abdominal surgery

BACKGROUND

The Quality of Recovery-15 (QoR-15) and 12-item World Health Organization Disability Assessment Schedule 2.0 scales are post-surgery patient-reported outcome measures. We aimed to evaluate the association between immediate in-hospital postoperative recovery and mid-term disability-free survival (DFS) after discharge.

METHODS

We conducted a prospective observational study at a university hospital and enrolled 260 patients aged ≥ 65 years with cancer who were undergoing elective major abdominal surgery. The association between poor postoperative recovery, defined as a QoR-15 score < 90 on postoperative day (POD) 2, and the DFS three months later was assessed using Fisher's exact test. The odds ratio of poor recovery on POD 2 to DFS was calculated using multiple logistic regression analysis adjusted for prominent factors (age, preoperative frailty, preoperative DFS, surgical duration, and intraoperative blood loss volume).

RESULTS

A total of 230 patients completed the 3-month follow-up. On POD 2, 27.3% of the patients (63/230) had poor recovery. A greater number of patients without poor recovery on POD 2 had DFS at three months after surgery (79.6%) than those with poor recovery (65.1%) (P = 0.026). The adjusted odds ratio of poor recovery on POD 2 to DFS at three months was 0.481 (95% CI [0.233, 0.994]).

CONCLUSIONS

Patients with poor recovery on POD 2 were less likely to have DFS three months after abdominal surgery. These findings may allow for early and effective interventions to be initiated based on each patient's condition after abdominal surgery.

Validation and cross-cultural adaptation of the quality of Recovery-15 questionnaire in a Spanish-speaking population in Colombia

Background

The quality of recovery is an important component in the evaluation of perioperative care. To measure this, the Quality of Recovery-15 (QoR-15) scale has been validated previously. The aim of this study was to culturally, linguistically, and psychometrically adapt this scale to the Colombian Spanish language.

Methods

After linguistic adaptation, a validation study of the psychometric properties was carried out. These included validity, reliability, and responsiveness. The scale was administered after the administration of general anaesthesia. Validity was determined by correlating with the general recovery VAS, surgical risk, surgical duration, and length of hospital stay. Structural validity was assessed using factor analysis. Test-retest and internal consistency were used to measure reliability.

Results

Interviews were conducted with 161 adults. A positive correlation was found between the Spanish version of the QoR-15 scale (QoR-15C) and VAS scores (r=0.51), and a negative correlation between the QoR-15C score and the duration of surgery (r=-0.47) and hospital stay (r=-0.62). The reliability of the scale was adequate. Cronbach's alpha was 0.74, and Lin's correlation concordance coefficient was 0.99. Confirmatory factor analysis indicated that the scale in the Colombian Spanish version does not have a single domain, whilst exploratory factor analysis indicated that the scale may measure an additional factor.

Conclusions

The QoR-15C scale for assessing the quality of recovery after general anaesthesia showed psychometric properties comparable with those of the English scale. This allows the scale to be considered for use in research and clinical practice.

Effectiveness of a digital vs face-to-face preoperative assessment: A randomized, noninferiority clinical trial

STUDY OBJECTIVE

Digitalizing the preoperative assessment clinic can be a solution to keep up with the growing demand for surgery. It remains unclear if a digital preoperative assessment clinic is as safe, and effective in terms of patient health outcomes and experience compared to face-to-face consultations. This study aimed to compare quality of recovery and mental state in patients undergoing a digital preoperative assessment versus regular face-to-face consultations.

DESIGN

This was a single centre, randomized (1:1), parallel, open-label, noninferiority trial.

SETTING

The preoperative clinic and preoperative unit of an urban secondary care hospital.

PATIENTS

All adult, Dutch speaking, ASA I-IV patients with access to an online computer who required surgery.

INTERVENTIONS

Digital preoperative screening, consisting of an electronic screening questionnaire and web-based platform with personalized information and recommendations related to the procedure, or face-to-face screening, consisting of two 20-min in-hospital consultations.

MEASUREMENTS

The primary endpoint was quality of recovery, measured 48 h after surgery. The analysis followed a per-protocol principle, and only patients who underwent the intended screening were included in the analysis. The noninferiority margin was set at -6. The trial was registered at ClinicalTrials.gov, NCT05535205, during the study on 09/08/2022, before analysing results.

MAIN RESULTS

Between March 1, 2021 and 30 august 2021, 480 patients were assessed for eligibility. 400 patients were randomly assigned to the digital group (n = 200) or face-to-face group (n = 201), of which respectively 117 and 124 patients were eventually included in the primary analysis. The mean quality of recovery score of patients undergoing digital screening (158) was non-inferior to that of patients undergoing face-to-face screening (155), with a mean difference of 3·2 points and a 97.5% lower confidence limit of -2.1 points. There were no adverse events.

CONCLUSIONS

A digital preoperative screening is not inferior to face-to-face consultations in patients undergoing predominantly low to moderate risk surgery. Given its potential to reduce physician workload, reallocate healthcare resources, and lower healthcare costs, a digital preoperative screening may be a better choice for preoperative assessments.

Effects of intraoperative neuromonitoring (IONM) technology on early recovery quality in patients after thyroid surgery: A randomized controlled trial

BACKGROUND

Patient-focused evaluation of postoperative recover has been recognized as one of the most important concerns in postoperative medicine. Previous studies have shown that the Quality of Recovery-40 (QoR-40) Questionnaire can be used to accurately assess the quality of recovery from surgery. During thyroid surgery using intraoperative neuromonitoring (IONM) technology, the strategy of low dose of muscle relaxant, intubation of different endotracheal tubes and electrical stimulation on vocal cord are applied. Its still unknown if these performances would affect patients' postoperative recovery in thyroid surgery patients.

METHODS

82 patients were randomly assigned to the neuromonitoring group (NEURO Group) and the control group (CON Group). In the CON Group, rocuronium (0.6 mg / kg) was given for intubation and additional dose was injected if needed, while in the NEURO Group, only rocuronium (0.3 mg / kg) was given when induction. The primary outcome is the QoR-40 scores on postoperative day 1 (POD1) and postoperative day 3 (POD3). Other parameters, such as postoperative nausea or vomiting (PONV) and medical cost were also recorded.

RESULTS

One subject in each group was excluded, leaving 80 for analysis. In the NEURO Group, the global QoR-40 score, emotional state, physical comfort, physical independence and pain were significantly lower both on POD1 and POD3 (P<0.05). Patients in the NEURO Group had a higher incidence of PONV (P<0.05) and medical expense (P<0.05).

CONCLUSIONS

After thyroidectomy, the patients using IONM suffer worse quality of recovery, more risk of PONV and increased medical expense.

Is Pain Perception Communicated through Mothers? Maternal Pain Catastrophizing Scores Are Associated with Children's Postoperative Circumcision Pain

The aim of this study was to evaluate the relation of maternal pain catastrophizing score with children who underwent circumcision postoperative pain. This prospective cohort study was performed between March 2022 and March 2023 at Samsun University, Turkey. Demographic characteristics of mothers and children, mothers' education level, presence of chronic pain, and Beck Depression Inventory scores were recorded preoperatively. Pain catastrophizing was assessed by applying the pain catastrophizing scale (PCS) to the mothers of children who experienced postoperative circumcision pain. The mothers were divided into low-pain catastrophizing (Group 1) and high-pain catastrophizing (Group 2) group. A total of 197 mothers and sons participated in the study, with 86 (43.6%) in Group 1 and 111 (56.4%) in Group 2. Significant differences were found between the two groups in terms of the mothers' PCS scores (p < 0.001), education levels (p = 0.004), chronic pain scores (p = 0.022), and Beck Depression Inventory scores (p < 0.001). Our findings showed that children with high pain catastrophizing mothers experience greater postoperative pain than those with low pain catastrophizing mothers. This may be attributable to a mother's specific cognitive style for coping with pain, which is associated with the child's responses to painful experiences.

An Intraoperative Sub-Anesthetic Dose of Esketamine on Postoperative Depressive Symptoms in Perimenopausal Women with Breast Cancer Undergoing Modified Radical Mastectomy: Protocol for a Randomized, Triple-Blinded, Controlled Trial

Background

Depressive symptoms are common among perimenopausal women with breast cancer having modified radical mastectomy. Esketamine exerts antidepressant effects. This study aims to assess whether an intraoperative sub-anesthetic dose of esketamine prevents postoperative depressive symptoms in these patients.

Methods

In this randomized, triple-blinded, placebo-controlled trial, we will enroll 130 perimenopausal women (aged 45-60 years) with breast cancer undergoing unilateral modified radical mastectomy. Patients will be randomly assigned with a 1:1 ratio to receive either esketamine (0.25 mg/kg i.v.) or normal saline after anesthesia induction and before skin incision. The primary outcome is the incidence of depressive symptoms at day 30 postoperatively, assessed using the Beck's Depression Inventory (BDI). Secondary outcomes include incidence of depressive symptoms and BDI scores at day 1, 3, and 180 postoperatively, anxiety symptoms and scores at day 1, 3, 30, and 180 postoperatively, pain intensity and quality of recovery at day 1 and 2 postoperatively, nausea and vomiting within 48 hours postoperatively, length of postoperative hospital stay, and cancer-specific outcomes. Data will be analyzed in the modified intention-to-treat population.

Discussion

This is the first trial to evaluate the effects of a sub-anesthetic dose of esketamine on depressive symptoms in perimenopausal women after modified radical mastectomy. The results of this study will help to improve their mental health and recovery after breast cancer surgery.

Trial Registration

Chinese Clinical Trial Registry (ChiCTR2200064348).

Postoperative nausea and vomiting: is the big little problem becoming a smaller little problem?

Postoperative nausea and vomiting (PONV) has been identified as a big (very frequently encountered) little (not linked to life-threatening outcomes) problem. Traditional drugs (dexamethasone, droperidol or similar drugs, serotonin receptor antagonists) each have significant but limited effect, leading to an increasing use of combination therapies. High-risk patients, often identified through use of risk scoring systems, remain with a significant residual risk despite combining up to three traditional drugs. A recent correspondence in this Journal proposes the use of up to five anti-emetic drugs to further minimise the risk. This disruptive strategy was supported by favourable initial results, absence of side-effects and lower acquisition costs of the added new drugs (aprepitant and palonosetron) because of their recent loss of patent protection. These results are provocative and hypothesis generating, but need confirmation and do not warrant immediate changes in clinical practice. The next steps will also necessitate wider implementation of protocols protecting patients from PONV and a search for additional drugs and techniques aimed at treating established PONV.

Efficacy of pericapsular nerve group (PENG) block on perioperative pain management in elderly patients undergoing hip surgical procedures: a protocol for a systematic review with meta-analysis and trial sequential analysis

INTRODUCTION

An increasing number of elderly patients suffer from hip diseases associated with moderate to severe perioperative pain during the accelerating global ageing process. Optimal analgesia can decrease perioperative complications and facilitate elderly patients' perioperative recovery. Pericapsular nerve group (PENG) block is a relatively new, analgesia adequate and motor-sparing block technique for perioperative pain management of hip diseases. However, the efficacy of PENG block remains unclear as the limited clinical evidence. Then, we will perform a protocol for a systematic review and meta-analysis to identify the efficacy of PENG block for perioperative pain management.

METHODS AND ANALYSIS

PubMed, Ovid Medline, Cochrane Library, Embase, Web of Science, China National Knowledge Infrastructure, Chinese BioMedical Literature, Wanfang and VIP databases will be searched from inception to August 2022 to identify randomised controlled trials of elderly patients accepting PENG block for hip diseases. The primary outcome will be the pain intensity after pain management. Secondary outcomes will be quadriceps strength, perioperative rescue analgesia information and perioperative complications. Assessment of heterogeneity will be primarily inspected by forest plots. If there is no indication of funnel plot asymmetry, a random-effects meta-analysis will be performed. The Cochrane risk-of-bias tool, Grading of Recommendations Assessment, Development and Evaluation and trial sequential analysis will be conducted to evaluate the evidence quality and control the random errors. Funnel plots and Egger's regression test will be performed to evaluate publication bias.

ETHICS AND DISSEMINATION

Ethical approval was not required for this systematic review protocol. The results will be disseminated through peer-reviewed publications.

PROSPERO REGISTRATION NUMBER

CRD42022313895.

Postoperative recovery with continuous erector spinae plane block or video-assisted paravertebral block after minimally invasive thoracic surgery: a prospective, randomised controlled trial

BACKGROUND

PROcedure SPECific Postoperative Pain ManagemenT (PROSPECT) guidelines recommend erector spinae plane (ESP) block or paravertebral block (PVB) for postoperative analgesia after video-assisted thoracoscopic surgery (VATS). However, there are few trials comparing the effectiveness of these techniques on patient-centric outcomes, and none evaluating chronic postsurgical pain (CPSP). Furthermore, there are no available trials comparing ultrasound-guided ESP with surgically placed PVB in this patient cohort.

METHODS

We conducted a two-centre, prospective, randomised, double-blind, controlled trial, comparing anaesthesiologist-administered, ultrasound-guided ESP catheter with surgeon-administered, video-assisted PVB catheter analgesia among 80 adult patients undergoing VATS. Participants received a 20 ml bolus of levobupivacaine 0.375% followed by infusion of levobupivacaine 0.15% (10-15 ml h^-1) for 48 h. Primary outcome was Quality of Recovery-15 score (QoR-15) at 24 h. Secondary outcomes included QoR-15 at 48 h, peak inspiratory flow (ml s^-1) at 24 h and 48 h, area under the pain verbal response score vs time curve (AUC), opioid consumption, Comprehensive Complication Index, length of stay, and CPSP at 3 months after surgery.

RESULTS

Median (25-75%) QoR-15 at 24 h was higher in ESP (n=37) compared with PVB (n=37): 118 (106-134) vs 110 (89-121) (P=0.03) and at 48 h: 131 (121-139) vs 120 (111-133) (P=0.03). There were no differences in peak inspiratory flow, AUC, Comprehensive Complication Index, length of hospital stay, and opioid consumption. Incidence of CPSP at 3 months was 12 (34%) for ESP and 11 (31%) for PVB (P=0.7).

CONCLUSIONS

Compared with video-assisted, surgeon-placed paravertebral catheter, erector spinae catheter improved overall QoR-15 scores at 24 h and 48 h but without differences in pain or opioid consumption after minimally invasive thoracic surgery.

CLINICAL TRIAL REGISTRATION

NCT04729712.

Comparison of remimazolam-based and propofol-based total intravenous anesthesia on postoperative quality of recovery: A randomized non-inferiority trial

STUDY OBJECTIVE

The quality of recovery (QoR) of remimazolam-based and propofol-based total intravenous anesthesia was compared as measured by QoR-15 scores.

DESIGN

A prospective, double-blind, randomized controlled, non-inferiority trial.

SETTING

An operating room, a post-anesthesia care unit (PACU), and a hospital ward.

PATIENTS

Female patients (n = 140; 20-65 years) scheduled for open thyroidectomy were enrolled and randomly assigned to the remimazolam or propofol group.

INTERVENTIONS

The remimazolam group received continuous remimazolam infusions and effect-site target-controlled remifentanil infusions. The propofol group received effect-site target-controlled infusions of propofol and remifentanil.

MEASUREMENTS

The primary outcome was QoR-15 on postoperative day 1 (POD1). The mean difference between the groups was compared against a non-inferiority margin of -8. Secondary outcomes were QoR-15 on POD2, hemodynamic data, time to lose and recover consciousness, sedation score upon PACU admission, pain, and postoperative nausea and vomiting profiles at the PACU and ward. Group-time interaction effects in hemodynamic data and QoR-15 were analyzed using a linear mixed model.

MAIN RESULTS

The total QoR-15 score on POD1 in the remimazolam group was non-inferior to that in the propofol group (mean [SD] 111.2 [18.8] vs. 109.1 [18.9]; mean difference [95% CI] 2.1 [-4.2, 8.5]; p = 0.002 for non-inferiority). The QoR-15 score on POD2 was comparable between the groups, and no group-time interaction was observed. At the end of anesthesia, after extubation, and upon arrival at the PACU, mean arterial pressure was significantly higher in the remimazolam group. Remimazolam group was more sedated at the time of admission to PACU. Pain intensity and the requirement for analgesics were lower in the remimazolam group than in the propofol group.

CONCLUSIONS

Remimazolam-based total intravenous anesthesia provided a similar QoR to propofol. Remimazolam and propofol can be used interchangeably for general anesthesia in female patients undergoing thyroid surgery.