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Microscopy Research and Technique Feb 2024The purpose of this systematic review of meta-analysis was to compare the effectiveness of removing the smearing layer using EDTA versus Chitosan (Ch) and Chitosan... (Meta-Analysis)
Meta-Analysis Review
The comparative of chitosan and chitosan nanoparticle versus ethylenediaminetetraacetic acid on the smear layer removal: A systematic review and meta-analysis of in vitro study.
The purpose of this systematic review of meta-analysis was to compare the effectiveness of removing the smearing layer using EDTA versus Chitosan (Ch) and Chitosan nanoparticles (Ch-NPs). A search was performed in four electronic databases (Web of Science, PubMed, Scopus, and Cochrane). The included studies were assessed by two reviewers using Joanna Briggs Institute's critical appraisal checklist for the quasi-experimental studies. Outcomes obtained by scanning electron microscopy (SEM) and conventional methods were presented as standardized mean differences alongside 95% confidence intervals. Seven investigations employed 212 single-root teeth. In the apical section (p = .317, 95% CI = -0.820 to 0.266, Tau = 0.387), middle segment (p = .914, 95% CI = -1.019 to 0.912, Tau = 1.027), and coronal segment (p = .277, 95% CI = -1.008 to 0.289, Tau = 0.378). This meta-analysis found no difference between Ch, Ch-NPs, and EDTA in removing the smear layer in the three segments. This systematic review is designed to show evidence related to the PICO question, in which our outcome is smear layer removal and not the clinical success of such a treatment. RESEARCH HIGHLIGHTS: The study aimed to compare the effectiveness of chitosan and chitosan nanoparticles with ethylenediaminetetraacetic acid (EDTA) in removing the smear layer, a layer of debris and organic material on the tooth surface, through a systematic review and meta-analysis. The removal of the smear layer is crucial for successful dental treatments, as it enhances the adhesion of restorative materials and improves the penetration of antimicrobial agents into dentinal tubules. The researchers conducted a systematic review and meta-analysis, searching various databases of electron microscopy results for relevant in vitro studies comparing the effects of chitosan or chitosan nanoparticles with EDTA on smear layer removal. The results encourage further exploration of chitosan and chitosan nanoparticles for clinical use in dentistry, while considering their specific applications and long-term effects.
Topics: Humans; Edetic Acid; Chitosan; Smear Layer; Root Canal Preparation; Sodium Hypochlorite; Root Canal Irrigants; Microscopy, Electron, Scanning; Dental Pulp Cavity
PubMed: 37732467
DOI: 10.1002/jemt.24423 -
Epilepsy & Behavior : E&B Jun 2022New-onset movement disorders have been frequently reported in association with the use of antiseizure medications (ASMs). The frequency of specific motor manifestations... (Review)
Review
New-onset movement disorders have been frequently reported in association with the use of antiseizure medications (ASMs). The frequency of specific motor manifestations and the spectrum of their semiology for various ASMs have not been well characterized. We carried out a systematic review of literature and conducted a search on CINAHL, Cochrane Library, EMBASE, MEDLINE, PsycINFO, and Scopus from inception to April 2021. We compiled the data for all currently available ASMs using the conventional terminology of movement disorders. Among 5123 manuscripts identified by the search, 437 met the inclusion criteria. The largest number of reports of abnormal movements were in association with phenobarbital, valproic acid, lacosamide, and perampanel, and predominantly included tremor and ataxia. The majority of attempted interventions for all agents were discontinuation of the offending drug or dose reduction which led to the resolution of symptoms in most patients. Familiarity with the movement disorder phenomenology previously encountered in relation with specific ASMs facilitates early recognition of adverse effects and timely institution of targeted interventions.
Topics: Anticonvulsants; Humans; Lacosamide; Movement Disorders; Phenobarbital; Valproic Acid
PubMed: 35483204
DOI: 10.1016/j.yebeh.2022.108693 -
Journal of the Medical Association of... Dec 2010To systematically review the performance characteristics of VIA in cervical cancer screening. (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
To systematically review the performance characteristics of VIA in cervical cancer screening.
MATERIAL AND METHOD
The Ovid (Medline) electronic database from January, 1996 to Febuary, 2007 was searched, using the following key search words of (1) MESH term "Uterine Cervical Neoplasms" with subheading "diagnosis", (2) Keywords "sensitivity" or "specificity" and (3) Keyword "visual inspection with acetic acid" Total of 11 studies were relevant and eligible for the review. Histology or combination of Colposcopy and histology were used as gold standard. Abnormal colposcopy must have histological confirmation by material obtained by colposcopic directed biopsy, loop excision, or endocervical curettage. Histologic threshold for positive outcome from screening tests was CIN2 (Cervical Intraepithelial Neoplasia 2) or higher (or equivalent categories by other classifications). A meta-analysis, yielding a quantitative summary measure was implemented with the random effect model.
RESULTS
Using random effect method, the pooled estimates of sensitivity, specificity, positive predictive value and negative predictive value of VIA-VIAM were 71.8%, 79.4%, 16.7% and 99.0% respectively. When comparing with conventional cytology, VIA have favorably characteristics especially sensitivity and negative predictive value.
CONCLUSION
VIA may be incorporated in cervical cancer screening programme in low resource setting country because of high negative predictive value of the test is sufficiently high to assure screening for negative and CIN I women.
Topics: Acetic Acid; Colposcopy; Female; Humans; Indicators and Reagents; Mass Screening; Physical Examination; Predictive Value of Tests; Sensitivity and Specificity; Uterine Cervical Neoplasms
PubMed: 21294423
DOI: No ID Found -
Gastrointestinal Endoscopy Apr 2016Endoscopic real-time imaging of Barrett's esophagus (BE) with advanced imaging technologies enables targeted biopsies and may eliminate the need for random biopsies to... (Meta-Analysis)
Meta-Analysis Review
ASGE Technology Committee systematic review and meta-analysis assessing the ASGE Preservation and Incorporation of Valuable Endoscopic Innovations thresholds for adopting real-time imaging-assisted endoscopic targeted biopsy during endoscopic surveillance of Barrett's esophagus.
BACKGROUND AND AIMS
Endoscopic real-time imaging of Barrett's esophagus (BE) with advanced imaging technologies enables targeted biopsies and may eliminate the need for random biopsies to detect dysplasia during endoscopic surveillance of BE. This systematic review and meta-analysis was performed by the American Society for Gastrointestinal Endoscopy (ASGE) Technology Committee to specifically assess whether acceptable performance thresholds outlined by the ASGE Preservation and Incorporation of Valuable Endoscopic Innovations (PIVI) document for clinical adoption of these technologies have been met.
METHODS
We conducted meta-analyses calculating the pooled sensitivity, negative predictive value (NPV), and specificity for chromoendoscopy by using acetic acid and methylene blue, electronic chromoendoscopy by using narrow-band imaging, and confocal laser endomicroscopy (CLE) for the detection of dysplasia. Random effects meta-analysis models were used. Statistical heterogeneity was evaluated by means of I(2) statistics.
RESULTS
The pooled sensitivity, NPV, and specificity for acetic acid chromoendoscopy were 96.6% (95% confidence interval [CI], 95-98), 98.3% (95% CI, 94.8-99.4), and 84.6% (95% CI, 68.5-93.2), respectively. The pooled sensitivity, NPV, and specificity for electronic chromoendoscopy by using narrow-band imaging were 94.2% (95% CI, 82.6-98.2), 97.5% (95% CI, 95.1-98.7), and 94.4% (95% CI, 80.5-98.6), respectively. The pooled sensitivity, NPV, and specificity for endoscope-based CLE were 90.4% (95% CI, 71.9-97.2), 98.3% (95% CI, 94.2-99.5), and 92.7% (95% CI, 87-96), respectively.
CONCLUSIONS
Our meta-analysis indicates that targeted biopsies with acetic acid chromoendoscopy, electronic chromoendoscopy by using narrow-band imaging, and endoscope-based CLE meet the thresholds set by the ASGE PIVI, at least when performed by endoscopists with expertise in advanced imaging techniques. The ASGE Technology Committee therefore endorses using these advanced imaging modalities to guide targeted biopsies for the detection of dysplasia during surveillance of patients with previously nondysplastic BE, thereby replacing the currently used random biopsy protocols.
Topics: Acetic Acid; Barrett Esophagus; Biopsy; Coloring Agents; Esophagoscopy; Esophagus; Humans; Intravital Microscopy; Methylene Blue; Microscopy, Confocal; Narrow Band Imaging; Predictive Value of Tests; Watchful Waiting
PubMed: 26874597
DOI: 10.1016/j.gie.2016.01.007 -
Cerebrovascular Diseases (Basel,... 2008Piracetam was a candidate neuroprotective drug for acute stroke ineffective in clinical trial. Here we use systematic review and meta-analysis to describe the evidence... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND/OBJECTIVE
Piracetam was a candidate neuroprotective drug for acute stroke ineffective in clinical trial. Here we use systematic review and meta-analysis to describe the evidence supporting a protective effect of piracetam and its derivatives in animal models of stroke.
METHODS
We present a systematic review of reports describing the use of piracetam and its derivatives in animal models of focal ischaemia, where the outcome was measured as an infarct size or neurological score (Der Simonian and Laird random effects meta-analysis).
RESULTS
Only 2 studies, published 10 years after the first clinical trial of piracetam had been initiated, described its efficacy in animal models of stroke. A further 4 studies described the efficacy of related compounds. Piracetam and its derivatives improved the outcome by 30.2% (95% CI = 16.1-44.4). The median study quality was 4/10 (inter-quartile range = 4-6).
CONCLUSION
Piracetam and its derivatives demonstrate neuroprotective efficacy in experimental stroke, but our findings raise concerns about the amount of available data, the quality of the studies and publication bias.
Topics: Animals; Disease Models, Animal; Neuroprotective Agents; Piracetam; Stroke
PubMed: 18033952
DOI: 10.1159/000111493 -
International Endodontic Journal Jun 2022The effects of ethylenediaminetetraacetic acid (EDTA) on regenerative endodontic procedures (REPs) are controversial, because, despite releasing growth factors from... (Review)
Review
BACKGROUND
The effects of ethylenediaminetetraacetic acid (EDTA) on regenerative endodontic procedures (REPs) are controversial, because, despite releasing growth factors from dentine, some studies show negative effects on cell behaviour.
OBJECTIVES
The aim of the study was to investigate the influence of the use of EDTA in REP on the growth factors' release, cell behaviour and tissue regeneration.
METHODS
A systematic search was conducted (PubMed/Medline, Scopus, Cochrane Library, Web of Science, Embase, OpenGrey and reference lists) up to February 2021. Only in vivo and in vitro studies evaluating the effects of EDTA on the biological factors of dentine, pulp/periapical tissues and cell behaviour were eligible. Studies without a control group or available full text were excluded. The growth factors' release was the primary outcome. Risk of bias in the in vitro and in vivo studies was performed according to Joanna Briggs Institute's Checklist and SYRCLE's RoB tool, respectively.
RESULTS
Of the 1848 articles retrieved, 36 were selected. Amongst these, 32 were in vitro, three animal studies and one with both models. The EDTA concentrations ranged from 3% to 15%, at different times. Regarding growth factors' release (17 studies), 15 studies found significant transforming growth factor (TGF)-β release after dentine conditioning with EDTA, and most found no influence on vascular endothelial growth factor release. Regarding cell behaviour (26 studies), eight studies showed no influence of EDTA-treated dentine on cell viability, whereas, five, nine and six studies showed higher cell migration, adhesion and differentiation respectively. No influence of EDTA conditioning was observed in animal studies. In vitro studies had a low risk of bias, whereas animal studies had high risk of bias. Meta-analysis was unfeasible.
DISCUSSION
This review found that EDTA increased TGF-β release and improved cell activity. However, well-designed histological analyses using immature teeth models are needed.
CONCLUSIONS
High-quality in vitro evidence suggests that EDTA-treated dentine positively influences TGF-β release, cell migration, attachment and differentiation; further research to evaluate its influence on tissue regeneration is necessary due to low methodological quality of the animal studies.
Topics: Dental Pulp; Edetic Acid; Regenerative Endodontics; Transforming Growth Factor beta; Vascular Endothelial Growth Factor A
PubMed: 35305029
DOI: 10.1111/iej.13728 -
Radiology Dec 2020Background Gadoxetic acid is classified by the American College of Radiology as a group III gadolinium-based contrast agent (GBCA), which indicates that there are... (Meta-Analysis)
Meta-Analysis
Background Gadoxetic acid is classified by the American College of Radiology as a group III gadolinium-based contrast agent (GBCA), which indicates that there are limited data regarding nephrogenic systemic fibrosis (NSF) risk, but there are few if any unconfounded cases of NSF. Purpose To perform a systematic review and meta-analysis of gadoxetic acid adverse events, including immediate hypersensitivity reactions, NSF, and intracranial gadolinium retention. Materials and Methods Original research studies, case series, and case reports that reported adverse events in patients undergoing gadoxetic acid-enhanced MRI were searched in MEDLINE (1946-2019), Embase (1947-2019), CENTRAL (March 2019), and Scopus (1946-2019). The study protocol was registered at Prospero (number 162811). Risk of bias was evaluated by using Quality Assessment of Diagnostic Accuracy Studies-2, or QUADAS-2. Meta-analysis of proportions was performed by using random-effects modeling. Upper bound of 95% confidence interval (CI) for risk of NSF was determined. Results Seventy-one studies underwent full-text review. From 17 studies reporting 14 850 administrations, hypersensitivity reactions occurred in 0.3% (31 of 14 850; 95% CI: 0.2%, 0.4%) with zero deaths. From four studies reporting 106 administrations in patients with stage 4 or 5 chronic kidney disease or undergoing dialysis, the upper bound 95% CI for the risk of NSF was 2.8%. Five studies evaluating intracranial retention of gadolinium after gadoxetic acid administration were at high risk of bias. Conclusion Gadoxetic acid had a similar safety profile to American College of Radiology group 2 gadolinium-based contrast agents for hypersensitivity reactions and nephrogenic systemic fibrosis (NSF) but had lower confidence for risk of NSF because of fewer administrations in patients with severe kidney impairment. There is incomplete information documenting intracranial gadolinium retention in patients administered gadoxetic acid. © RSNA, 2020
Topics: Contrast Media; Drug Hypersensitivity; Gadolinium DTPA; Humans; Hypersensitivity, Immediate; Magnetic Resonance Imaging; Nephrogenic Fibrosing Dermopathy; Renal Insufficiency
PubMed: 32452732
DOI: 10.1148/radiol.2020200073 -
International Endodontic Journal Oct 2023Sodium hypochlorite (NaOCl) and ethylenediaminetetraacetic acid (EDTA) and/or calcium hydroxide (Ca(OH) ) are commonly used during root canal treatment. Evaluation of... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Sodium hypochlorite (NaOCl) and ethylenediaminetetraacetic acid (EDTA) and/or calcium hydroxide (Ca(OH) ) are commonly used during root canal treatment. Evaluation of their effectiveness regarding clinical and patient-related outcomes requires further understanding.
OBJECTIVES
To assess the effectiveness of root canal irrigation and dressing for the treatment of teeth with apical periodontitis (AP).
METHODS
A search was conducted in the PubMed-MEDLINE, Scopus, EMBASE, Google scholar databases and available repositories, followed by hand searches, until July 2021. Eligibility criteria followed the a priori formulated Population, Intervention, Comparator, Outcomes, Timing, and Study design (PICOTS) framework. Clinical studies restricted to English language were included. The revised Cochrane risk-of-bias tool for randomised trials (RoB 2) was used to assess the quality of included studies. Meta-analyses were performed using the fixed-effect model to obtain Risk Ratio (RR) and 95% Confidence Interval (CI), with sensitivity analysis. Overall quality of evidence of meta-analyses was assessed through the Grading of Recommendations Assessment, Development, and Evaluation tool.
RESULTS
The search identified 1357 records of which six fulfilled the inclusion criteria, providing data for 'irrigation' from 212 teeth and for 'dressings' from 438 teeth. Two studies reported no significant difference regarding the outcome 'pain at 7 days' using 2% chlorhexidine vs. 5.25% NaOCl and EDTA or after using different concentrations of NaOCl (1% vs. 5%). No significant difference was detected between different NaOCl concentrations regarding the reduction of AP. A meta-analysis was possible for the comparison of single-visit (SV) versus multiple-visits including the use of Ca(OH) demonstrating a significant effect in favour of SV (RR: 1.10; 95% CI: 1.03-1.19; p = .007; I = 0). RoB of included studies was moderate to low.
DISCUSSION
The use of Ca(OH) for the treatment of AP may not be beneficial. There is scarce or no evidence fulfilling the proposed PICOTS regarding irrigants and dressings.
CONCLUSIONS
There is moderate certainty that SV treatment is associated with better radiographic evidence of normal periodontal ligament space (strict criteria) compared with the use of Ca(OH) Reduction of AP is comparable after irrigation with 1% and 5% NaOCl, whereas postoperative pain at 7 days for the irrigants assessed is similar.
REGISTRATION
PROSPERO database CRD42021260271.
Topics: Humans; Dental Pulp Cavity; Edetic Acid; Root Canal Therapy; Periapical Periodontitis; Bandages; Root Canal Irrigants
PubMed: 35579074
DOI: 10.1111/iej.13777 -
European Journal of Clinical... Oct 2023The incidence of linezolid-induced thrombocytopenia (LIT) has been reported to vary widely across studies. We performed a meta-analysis to identify the risk factors for... (Meta-Analysis)
Meta-Analysis Review
PURPOSE
The incidence of linezolid-induced thrombocytopenia (LIT) has been reported to vary widely across studies. We performed a meta-analysis to identify the risk factors for thrombocytopenia among patients who received linezolid treatment.
METHODS
The PubMed, Embase and Cochrane Library databases were searched from inception to November 2022 to identify eligible studies. Data on the potential predictors of incidence in LIT were pooled using a random effects model. Sensitivity analyses were performed to determine the robustness of the results when significant heterogeneity was observed.
RESULTS
Forty observational studies involving 6454 patients treated with linezolid were included in the analysis. LIT was estimated to occur in 37% of patients. The following important factors were associated with the incidence of LIT: advanced age, body mass index, concurrent renal impairment or liver disease, abnormal laboratory parameters (including white blood cell count, serum creatinine, baseline platelet count, albumin, creatinine clearance rate, and estimated glomerular filtration rate), treatment duration and renal replacement therapy.
CONCLUSIONS
A variety of risk factors related to the occurrence of LIT were revealed in our analysis. Early identification of these factors could help patients improve clinical outcomes.
Topics: Humans; Linezolid; Thrombocytopenia; Platelet Count; Renal Insufficiency; Risk Factors; Anemia; Anti-Bacterial Agents
PubMed: 37578552
DOI: 10.1007/s00228-023-03542-z -
International Journal of Medical... 2017The purpose of this study was to systematically review the diagnostic performance of gadoxetic acid-enhanced magnetic resonance imaging (Gd-EOB-DTPA-MRI) for... (Review)
Review
The purpose of this study was to systematically review the diagnostic performance of gadoxetic acid-enhanced magnetic resonance imaging (Gd-EOB-DTPA-MRI) for differentiation of hepatocellular adenoma (HCA) and focal nodular hyperplasia (FNH), as well as HCA classification by using the low signal intensity (SI) in the hepatobiliary phase (HBP). A systematic process was used to review all published data in MEDLINE database about Gd-EOB-DTPA-MRI applied to differentiation of HCA and FNH, and classification of HCA by using low SI in the HBP. The pooled sensitivity and specificity were calculated to assess the diagnostic value of low SI in the HBP. A review of 45 articles identified 10 eligible studies with a total of 288 HCA lesions. The pooled proportion of low SI in the HBP of HCA were 91% (95% CI: 0.81-0.97). In specific, the subtypes of HCA were 75% (95% CI: 0.64-0.85) for I-HCA, 100% (95% CI: 0.95-1.00) for H-HCA, 92% (95% CI: 0.70-1.00) for U-HCA, and 59% (95% CI: 0.00-1.00) for b-HCA, respectively. The pooled specificity and sensitivity of low SI in the HBP for distinguishing FNH from HCA were 95% (95% CI: 0.92-0.98) and 92% (95% CI: 0.87-0.96), respectively. Low SI in the HBP of Gd-EOB-DTPA-MRI is associated with higher accuracy for distinguishing HCA from FNH. However, the diagnostic accuracy may be overvalued, especially for the diagnosis of subtypes of b-HCA and I-HCA. Therefore, the risk factors and conventional imaging findings should be take into account simultaneously.
Topics: Adenoma, Liver Cell; Contrast Media; Diagnosis, Differential; Focal Nodular Hyperplasia; Gadolinium DTPA; Humans; Magnetic Resonance Imaging
PubMed: 28824299
DOI: 10.7150/ijms.17865