Effects of customized resin base on bonding strength of spherical self-ligating brackets.

Purpose: Fabricating resin bases has become an easy and economical method to achieve the customization of brackets. This study aimed to assess the effect of the resin base on bonding strength of spherical self-ligating brackets.

Methods: A defined amount of adhesive was bonded to the bracket base and constituted the new resin base.

Radiological and hemodynamic parameters in patients with suspected ventricular aneurysm and interventricular septal perforation after acute myocardial infarction: A comparison of non-invasive and invasive diagnostic modalities.

Transthoracic echocardiography is a rapid, sensitive and non-invasive technique for diagnosing ventricular septal perforation. Furthermore, left ventricular angiography is generally used for left ventricular aneurysm but right heart catheterization is the gold standard for septal perforation following myocardial infarction. The objectives of the present study were to compare radiological and hemodynamic diagnostic parameters of non-invasive methods with those of right heart catheterization in patients with suspected ventricular aneurysm and interventricular septal perforation after acute myocardial infarction.

Transcutaneous electrical acupoint stimulation for preventing postoperative nausea and vomiting after general anesthesia: A meta-analysis of randomized controlled trials.

Objective: We performed this meta-analysis to evaluate the effectiveness of transcutaneous electrical acupoint stimulation (TEAS) for preventing postoperative nausea and vomiting (PONV) after general anesthesia.

Methods: We searched PubMed, EMbase, Ovid, Web of Science for relevant randomized controlled trials (RCTs) about TEAS for the prevention of PONV, published through July 31, 2019. The primary outcome was the incidence of PONV, postoperative nausea (PON) and postoperative vomiting (POV) recorded within 24 h after surgery.

Effects of intraoperative PEEP on postoperative pulmonary complications in high-risk patients undergoing laparoscopic abdominal surgery: study protocol for a randomised controlled trial.

Introduction: Postoperative pulmonary complications (PPCs), strongly associated with higher mortality risk, can develop in up to 58% of patients undergoing abdominal surgery. More and more evidence shows that the use of a lung-protective ventilation strategy has a lung protection effect in patients undergoing abdominal surgery, however, the role of positive end-expiratory pressure (PEEP) during the intraoperative period in preventing PPCs for laparoscopic surgery is not clearly defined.

Methods And Analysis: A total of 208 patients with a high risk of PPC, undergoing laparoscopic abdominal surgery, will be enrolled and randomised into a standard PEEP (6-8 cm HO) group and a low PEEP (≤2 cm HO) group.

Effects of intraoperative PEEP on postoperative pulmonary complications in patients undergoing robot-assisted laparoscopic radical resection for bladder cancer or prostate cancer: study protocol for a randomized controlled trial.

Background: There are increasing studies showing that the use of a lung-protective ventilation strategy has a lung protection effect in patients undergoing abdominal surgery; however, the appropriate positive end-expiratory pressure (PEEP) has not yet defined. Adopting a suitable PEEP may prevent postoperative pulmonary complications. Robot-assisted laparoscopic surgery is the newest and most minimally invasive treatment for bladder cancer or prostate cancer.

Incidence of postoperative residual neuromuscular blockade after general anesthesia: a prospective, multicenter, anesthetist-blind, observational study.

Objective: Evidences demonstrate that postoperative residual neuromuscular blockade (rNMB) is a primary and frequent anesthetic risk factor for postoperative complications. This study was designed to mitigate the paucity of data regarding the occurrence and degree of rNMB in a real-life setting.

Methods: This prospective, multicenter, anesthetist-blind, observational study enrolled 1571 Chinese adults undergoing elective open or laparoscopic abdominal surgery lasting ≤4 hours from 32 hospitals across China.

A Preliminary Genetic Analysis of Complement 3 Gene and Schizophrenia.

Complement pathway activation was found to occur frequently in schizophrenia, and complement 3 (C3) plays a major role in this process. Previous studies have provided evidence for the possible role of C3 in the development of schizophrenia. In this study, we hypothesized that the gene encoding C3 (C3) may confer susceptibility to schizophrenia in Han Chinese.

Location- and Subunit-Specific NMDA Receptors Determine the Developmental Sevoflurane Neurotoxicity Through ERK1/2 Signaling.

It is well established that developmental exposure of sevoflurane (an inhalational anesthetic) is capable of inducing neuronal apoptosis and subsequent learning and memory disorders. Synaptic NMDA receptors activity plays an essential role in cell survival, while the extra-synaptic NMDA receptors activation is usually associated with cell death. However, whether synaptic or extra-synaptic NMDA receptors mediate developmental sevoflurane neurotoxicity is largely unknown.

Levobupivacaine inhibits lipopolysaccharide-induced high mobility group box 1 release in vitro and in vivo.

Background: The aim of the study was to investigate whether levobupivacaine (LB) suppressed lipopolysaccharide (LPS)-induced high mobility group box 1 (HMGB1) release in vitro and in vivo, and to determin its molecular mechanisms of action.

Materials And Methods: RAW264.7 cells were treated with LPS and LB for 24 h.

Inhibition of aberrant cyclin-dependent kinase 5 activity attenuates isoflurane neurotoxicity in the developing brain.

Aberrant CDK5 activity is implicated in a number of neurodegenerative disorders. Isoflurane exposure leads to neuronal apoptosis, and subsequent learning and memory defects in the developing brain. The present study was designed to examine whether and how CDK5 activity plays a role in developmental isoflurane neurotoxicity.

Comparison of dexmedetomidine and sufentanil for conscious sedation in patients undergoing awake fibreoptic nasotracheal intubation: a prospective, randomised and controlled clinical trial.

Introduction: Fibreoptic intubation is a valuable technique for difficult airway management in which conscious sedation is paramount.

Objectives: To investigate the efficacy and safety of dexmedetomidine (DEX) and sufentanil (SUF) for conscious sedation during awake nasotracheal intubation under vision by a fibreoptic bronchoscope.

Methods: Forty patients with anticipated difficult airways of American Society of Anesthesiologists I-II scheduled for awake fibreoptic nasotracheal intubation were randomised into two groups each containing 20 subjects.

N-stearoyl-L-tyrosine ameliorates sevoflurane induced neuroapoptosis via MEK/ERK1/2 MAPK signaling pathway in the developing brain.

N-arachidonoylethanolamine (AEA) plays a crucial neuroprotective role in certain neurodegenerative diseases. Our recent studies suggested that AEA analog N-stearoyl-l-tyrosine (NsTyr) could protect neurons from apoptosis and improve hippocampus-dependent learning and memory deficits. The present study was designed to determine the neuroprotective effect of NsTyr on developmental sevoflurane neurotoxicity using primary hippocampal neuronal cultures and rat pups.

[Effects of preemptive analgesia with flurbiprofen on the blood sugar and interleukin-6 of patients after radical excision of breast cancer].

Objective: To investigate the effects of preemptive analgesia with flurbiprofen on the blood sugar and Interleukin-6 of patients after radical excision of breast cancer.

Methods: A total of 60 ASA I-II patients scheduled for radical excision of breast cancer were randomly assigned to three groups: group A, B and C (n = 20 each), patients of group A and C received intravenous flurbiprofen 100 mg before or at the end of surgery respectively. Blood samples were collected from the patients before anaesthesia induction and 1, 6, 24 h after surgery for the determination of blood sugar and serum interleukin-6 concentration.

[Effect of long-term sevoflurane anesthesia on markers of myocardial damage].

Objective: To investigate the effect of long-term sevoflurane anesthesia on markers of myocardial damage or toxicity.

Methods: Forty adult patients scheduled for upper abdominal surgery with general anesthesia for 4 hours or more were randomly divided into Group S and PR (n=20 each). After anesthesia induction, patients of Group S were maintained with only sevoflurane, and patients of Group PR with target-controlled infusion of propofol 2-4 microg/ml and remifentanil 4-8 ng/ml.

[Comparison of three different organ failure assessment score systems in predicting outcome of severe sepsis].

Objective: To compare multiple organ dysfunction score (MODS), the sequential organ failure assessment (SOFA) and the logistic organ dysfunction score (LODS) in predicting hospital mortality in severe sepsis.

Methods: Four hundred and three patients admitted to the ICU from December 2004 to November 2007 with a diagnosis of severe sepsis were enrolled in this study. Their MODS, SOFA, LODS and Acute Physiology and Chronic Health Evaluation (APACHE) II at admission and the highest score during hospitalization were respectively recorded and collected in regard to mortality.