ObjectivesThere is an increased interest in enhanced recovery after surgery (ERAS) minimizing adverse events after orthopedic surgery. Little consensus supports the effectiveness of these interventions. The purpose of present systematic review and meta-analysis is to comprehensively analyze and evaluate the significance of ERAS interventions for postoperative outcomes after orthopedic surgery.MethodsPubMed, EMBASE, and Cochrane databases were totally searched from the inception dates to May 31, 2018. Two reviewers independently extracted the data from the selected articles using a standardized form and assessed the risk of bias. The analysis was performed using STATA 12.0.ResultsA total of 15 published studies fulfilled the requirements of inclusion criteria. We found that the ERAS group showed a significant association with lower incidence of postoperative complications (OR, 0.70; 95% CI, 0.64 to 0.78). Meanwhile, ERAS was also associated with the decline in 30-day mortality rate and Oswestry Disability Index (ODI). However, no significant differences were identified between the two groups regarding the 30-day readmission rate (P = 0.397).ConclusionsOur meta-analysis suggested that the ERAS group had more advantages in reducing incidence of postoperative complications, 30-day mortality rate, and ODI after orthopedic surgery, but not of 30-day readmission rate. However, further research with standardized, unbiased methods and larger sample sizes is required for deeper analysis.Electronic supplementary materialThe online version of this article (10.1186/s13018-019-1116-y) contains supplementary material, which is available to authorized users.
Migraine is a common primary headache disorder. Transcutaneous auricular vagus nerve stimulation (taVNS) has been verified to be effective in patients with migraine without aura (MWoA). However, there are large interindividual differences in patients’ responses to taVNS. This study aimed to explore whether pretreatment fractional amplitude of low frequency fluctuation (fALFF) features could predict clinical outcomes in MWoA patients after 4-week taVNS. Sixty MWoA patients and sixty well-matched healthy controls (HCs) were recruited, and migraineurs received 4-week taVNS treatment. Resting-state functional magnetic resonance imaging (rs-fMRI) data were collected, and the significant differences of fALFF were detected between MWoA patients and HCs using two-sample t-test. A mask of these significant regions was generated and used for subsequent analysis. The abnormal fALFF in the mask was used to predict taVNS efficacy for MWoA using a support vector regression (SVR) model combining with feature select of weight based on the LIBSVM toolbox. We found that (1) compared with HCs, MWoA patients exhibited increased fALFF in the left thalamus, left inferior parietal gyrus (IPG), bilateral precentral gyrus (PreCG), right postcentral gyrus (PoCG), and bilateral supplementary motor areas (SMAs), but decreased in the bilateral precuneus and left superior frontal gyrus (SFG)/medial prefrontal cortex (mPFC); (2) after 4-week taVNS treatment, the fALFF values significantly decreased in these brain regions based on the pretreatment comparison. Importantly, the decreased fALFF in the bilateral precuneus was positively associated with the reduction in the attack times (r = 0.357, p = 0.005, Bonferroni correction, 0.05/5), whereas the reduced fALFF in the right PoCG was negatively associated with reduced visual analog scale (VAS) scores (r = −0.267, p = 0.039, uncorrected); (3) the SVR model exhibited a good performance for prediction (r = 0.411, p < 0.001),which suggests that these extracted fALFF features could be used as reliable biomarkers to predict the treatment response of taVNS for MWoA patients. This study demonstrated that the baseline fALFF features have good potential for predicting individualized treatment response of taVNS in MWoA patients, and those weight brain areas are mainly involved in the thalamocortical (TC) circuits, default mode network (DMN), and descending pain modulation system (DPMS). This will contribute to well understanding the mechanism of taVNS in treating MWoA patients and may help to screen ideal patients who respond well to taVNS treatment.
Background: Postoperative nausea and vomiting (PONV) is a common complication after surgery. However, drugs cannot prevent it completely, and acupuncture therapy shows the potential in preventing PONV, yet the best choice hasn’t been demonstrated. Objective: This network meta analysis aimed to evaluate the effectiveness of different acupuncture therapies used for preventing PONV in abdominal operation. Methods: Authors searched articles from PubMed/Medline, Cochrane library, Web of Science, Ebsco and Ovid/Embase, and established database from setup time to June 2019. Quality evaluation of included studies was performed with Cochrane risk-of-bias tool (ROB 2.0). Pairwise and network meta analysis were conducted by RevMan and Addis respectively. Results: Twenty studies with 2862 patients were included in this research. Pairwise meta analysis shows that compared with placebo, transcutaneous electric nerve stimulation had lower risk of postoperative nausea (PON) (odds ratio (OR) = 0.42, 95%confidence interval (CI): 0.30–0.60), postoperative vomiting (POV) (OR = 0.53, 95%CI: 0.36–0.78), PONVs (OR = 0.46, 95%CI: 0.31–0.68), and postoperative rescue (POR) (OR = 0.61, 95%CI: 0.41–0.90), Capsicum had lower risk of PON (OR = 0.16, 95%CI: 0.09–0.28), PONVs (OR = 0.23, 95%CI: 0.12–0.45), Acupressure had lower risk of POV (OR = 0.42, 95%CI: 0.25–0.70), POR (OR = 0.42, 95%CI: 0.27–0.64). In network meta analysis, compared with usual care, the probability rank suggested that Acupoint Injection showed lowest risk of PON (OR = 0.02, 95%CI: 0.00–0.11), POV (OR = 0.06, 95%CI: 0.01–0.49), Usual care for PONVs (OR = 0.31, 95%CI: 0.13–0.75), and Capsicum for POR (OR = 0.39, 95%CI: 0.07–2.33). Further study should be carried out to verify this result. Conclusion: Both pairwise and network meta analysis showed acupuncture therapy was superior to placebo and usual care. Different acupuncture therapy regimens may have advantages in different aspects. And compared with POV, PON seems easier to control. Research results may provide guidance for the prevention of PONV. Systematic review registration: PROSPERO CRD42019147556.
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