Lancet Diabetes Endocrinol. 2023 Sep;11(9):637-640. doi: 10.1016/S2213-8587(23)00153-5.
NO ABSTRACT
PMID:37620062 | DOI:10.1016/S2213-8587(23)00153-5
Tag: statistics
Inj Prev. 2023 Aug 23:ip-2023-044905. doi: 10.1136/ip-2023-044905. Online ahead of print.
ABSTRACT
INTRODUCTION: Musculoskeletal injury (MSK-I) mitigation and prevention programmes (MSK-IMPPs) have been developed and implemented across militaries worldwide. Although programme efficacy is often reported, development and implementation details are often overlooked, limiting their scalability, sustainability and effectiveness. This scoping review aimed to identify the following in military populations: (1) barriers and facilitators to implementing and scaling MSK-IMPPs; (2) gaps in MSK-IMPP research and (3) future research priorities.
METHODS: A scoping review assessed literature from inception to April 2022 that included studies on MSK-IMPP implementation and/or effectiveness in military populations. Barriers and facilitators to implementing these programmes were identified.
RESULTS: From 132 articles, most were primary research studies (90; 68.2%); the remainder were review papers (42; 31.8%). Among primary studies, 3 (3.3%) investigated only women, 62 (69%) only men and 25 (27.8%) both. Barriers included limited resources, lack of stakeholder engagement, competing military priorities and equipment-related factors. Facilitators included strong stakeholder engagement, targeted programme design, involvement/proximity of MSK-I experts, providing MSK-I mitigation education, low burden on resources and emphasising end-user acceptability. Research gaps included variability in reported MSK-I outcomes and no consensus on relevant surveillance metrics and definitions.
CONCLUSION: Despite a robust body of literature, there is a dearth of information about programme implementation; specifically, barriers or facilitators to success. Additionally, variability in outcomes and lack of consensus on MSK-I definitions may affect the development, implementation evaluation and comparison of MSK-IMPPs. There is a need for international consensus on definitions and optimal data reporting elements when conducting injury risk mitigation research in the military.
PMID:37620010 | DOI:10.1136/ip-2023-044905
Am Surg. 2023 Aug 24:31348231198121. doi: 10.1177/00031348231198121. Online ahead of print.
ABSTRACT
PURPOSE: The utility of chest computed tomography (CCT) is not well established in the diagnostic algorithm of adolescent blunt trauma patients. Our study’s aim was to review CCT usage in the initial evaluation of adolescent blunt trauma.
METHODS: We retrospectively reviewed adolescent blunt trauma patients treated at our urban level 1 adult trauma center from 2015 to 2019. Our primary outcome was the rate of positive CCT findings. Univariate and multivariate logistic regression analyses were performed.
RESULTS: There were 288 patients that met our inclusion criteria and 153 positive CCT and 135 negative CCT. There was no statistically significant difference between both groups in terms of age, gender, and race. Those with a positive CCT were found to have a statistically significant higher ISS than the negative CCT group (20.6 ± 12.3 vs 12.3 ± 7.6; P < .01). Those with a positive CCT were more likely to have a GCS <15 (40% vs 25%), have a positive CXR (38% vs 2%), have chest pain (16% vs 7%), and have an abnormal chest exam (27% vs 7%) than those with a negative CCT (P < .01). On multivariate analysis, positive CXR (P < .05, OR = 13.96) and ISS (P < .05, OR = 3.10) were independently associated with a positive CCT.
CONCLUSION: While CCT may provide valuable information, clinical exam coupled with low-ionizing radiographic imaging (i.e., CXR) may sufficiently identify chest trauma after blunt mechanisms. This shift in management can potentially reduce the risk of radiation without compromising the care of adolescent trauma patients at adult trauma centers.
PMID:37619987 | DOI:10.1177/00031348231198121
J Educ Eval Health Prof. 2023;20:24. doi: 10.3352/jeehp.2023.20.24. Epub 2023 Aug 27.
ABSTRACT
Systematic reviews and meta-analyses have become central in many research fields, particularly medicine. They offer the highest level of evidence in evidence-based medicine and support the development and revision of clinical practice guidelines, which offer recommendations for clinicians caring for patients with specific diseases and conditions. This review summarizes the concepts of systematic reviews and meta-analyses and provides guidance on reviewing and assessing such papers. A systematic review refers to a review of a research question that uses explicit and systematic methods to identify, select, and critically appraise relevant research. In contrast, a meta-analysis is a quantitative statistical analysis that combines individual results on the same research question to estimate the common or mean effect. Conducting a meta-analysis involves defining a research topic, selecting a study design, searching literature in electronic databases, selecting relevant studies, and conducting the analysis. One can assess the findings of a meta-analysis by interpreting a forest plot and a funnel plot and by examining heterogeneity. When reviewing systematic reviews and meta-analyses, several essential points must be considered, including the originality and significance of the work, the comprehensiveness of the database search, the selection of studies based on inclusion and exclusion criteria, subgroup analyses by various factors, and the interpretation of the results based on the levels of evidence. This review will provide readers with helpful guidance to help them read, understand, and evaluate these articles.
PMID:37619974 | DOI:10.3352/jeehp.2023.20.24
J ISAKOS. 2023 Aug 22:S2059-7754(23)00550-3. doi: 10.1016/j.jisako.2023.08.007. Online ahead of print.
ABSTRACT
BACKGROUND: There is controversy regarding various aspects of simultaneous bilateral total knee replacement (SBTKR). We found disparity in the postoperative outcomes and complications associated with the procedure in the literature linked with the topic.
OBJECTIVE: To retrospectively analyze the need for blood transfusion after surgery and complications associated with total knee replacement according to the type of procedure (SBTKR or unilateral).
METHODS: Retrospective cohort analytical study. We included 251 patients with severe knee osteoarthritis that were divided into two groups. 124 (49%) who underwent SBTKR and 127 upon whom unilateral total knee replacement (UTKR) was performed. Demographic data, days of hospitalization, complications within the first 90 days after surgery (thromboembolic events, superficial and deep infection, stiffness, death); and percentages of patients transfused with blood products during hospitalization were evaluated.
RESULTS: There were no statistical differences in the analysis of postoperative complications in the first 90 days after surgery. In the SBTKR group, 8 patients (6.5%) presented some thromboembolic complication during the postoperative period, while this event was observed in only 2 patients (1.5%) from the other group. The analysis showed a statistically significant drop in postoperative hemoglobin, on average that of 0.8 g/dl, in the SBTKR patient group compared to the UTKR group (95% CI 0,44-1,13; p<0,001). A higher proportion of patients who required transfusion were observed in the SBTKR group (40%) (OR=7,12; 95% CI 3,3 – 16; p<0,001). We analyzed the cause of postoperative transfusion in the patients who required transfusion taking into account two parameters: hemoglobin less than 8 g/dl and the clinical needs of the patients (symptoms of hypotension, decay, difficulty to rehabilitate without pain, dyspnea). 59 patients received transfusion (50 in the SBTKR group and 9 in the other group). Of these, 19 patients (32.2%) did not meet any transfusion criteria.
CONCLUSION: We consider SBTKR a safe procedure, which does not increase postoperative complications compared to UTKR. Although there is an increase in blood loss in SBTKR, it does not generate clinical symptoms of relevance.
LEVEL OF EVIDENCE: Level III.
PMID:37619961 | DOI:10.1016/j.jisako.2023.08.007
Biosystems. 2023 Aug 22:105007. doi: 10.1016/j.biosystems.2023.105007. Online ahead of print.
ABSTRACT
Virtually every biological system is governed by complex relations among its components. Identifying such relations requires a rigorous or heuristics-based search for patterns among variables/features of a system. Various algorithms have been developed to identify two-dimensional (involving two variables) patterns employing correlation, covariation, mutual information, etc. It seems obvious, however, that comprehensive descriptions of complex biological systems need also to include more complicated multivariable relations, which can only be described using patterns that simultaneously embrace 3, 4, and more variables. The goal of this manuscript is to (a) introduce a novel type of associations (multivariable Boolean patterns) that can be manifested between features of complex systems but cannot be identified (described) by traditional pair-vise metrics; (b) propose patterns classification method, and (c) provide a novel definition of the pattern’s strength (pattern’s score) able to accommodate heterogeneous multi-omics data. To demonstrate the presence of such patterns, we performed a search for all possible 2-, 3-, and 4-dimensional patterns in historical data from the Human Microbiome Project (15 body sites) and collection of H. pylori genomes associated with gastric ulcers, gastritis, and duodenal ulcers. In all datasets under consideration, we were able to identify hundreds of statistically significant multivariable patterns. These results suggest that such patterns can be common in microbial genomics/microbiomics systems.
PMID:37619924 | DOI:10.1016/j.biosystems.2023.105007
J Vasc Surg. 2023 Aug 22:S0741-5214(23)01926-2. doi: 10.1016/j.jvs.2023.08.113. Online ahead of print.
ABSTRACT
OBJECTIVE: To evaluate the outcomes after semi-conversion (open conversion with graft preservation) after failed endovascular aneurysm repair (EVAR). The primary outcomes were 30-day mortality and semi-conversion failure. Secondary outcomes were 30-day major systemic complications, endoleak recurrence, reinterventions, overall survival.
METHODS: The review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The protocol was prospectively registered on PROSPERO (CRD42023421153). All studies reporting the outcomes of semi-conversions for failed EVAR were eligible for inclusion. Quality assessment was performed using the Methodological Index for Non-Randomized Studies (MINORS) tool. A random effects meta-regression of proportions was conducted using the double arcsine-Tukey transformation given the frequent zero event rate in the primary outcome. Heterogeneity was assessed with the I2 statistic.
RESULTS: 8 studies were included in the review after full text screening. 196 patients underwent semi-conversion at a mean time from EVAR of 47.4 months, 68.9% in an elective setting. Mean age at conversion was 78.1 years, and the main indication was isolated endoleak type II (70.1% of cases). Aortic clamping was not necessary in 92.3% of semi-conversions, the aortic sac was opened in 96.1% of cases, in 93.3% of cases ligation/suture of one or more culprit arteries were performed, and aortic neck banding was executed in 29.2%. At 30 days from surgery, the pooled mortality and the major systemic complications rates were 5.3% (I2: 24.9%) and 13.4% (I2: 54.3%) respectively. At follow-up, endoleak recurred after 12.6% semi-conversions (I2: 83.2%) and the rate of reinterventions was 7% (I2: 50.1%); the semi-conversion failure rate was 5.5% (I2: 54.1%) and the overall survival was 84.6% (I2: 33.3%).
CONCLUSION: Semi-conversions have acceptable 30-day mortality rates, but the early and mid-term risks of complications, reinterventions, ruptures and infections are not negligible. This procedure might be an alternative to complete or partial graft explant in patients whom aortic cross clamping is not ideal.
PMID:37619915 | DOI:10.1016/j.jvs.2023.08.113
Acta Trop. 2023 Aug 22:107004. doi: 10.1016/j.actatropica.2023.107004. Online ahead of print.
ABSTRACT
Fleas (Siphonaptera) are medically and veterinary important ectoparasites known to infest a wide range of host species. This study presents a systematic review complemented by new data on the diversity of flea species and host associations in Algeria. 198 mammals were examined, including previously understudied hosts such as sheep, red foxes, fennec foxes, and golden African wolves. Of these animals, 108 (54.55%) were infested with fleas. Overall, 1.906 fleas belonging to seven species (Archaeopsylla erinacei s.l., Ctenocephalides felis, C. canis, Nosopsyllus fasciatus, Pariodontis riggenbachi, Pulex irritans, Xenopsylla cheopis) were identified, originating from seven provinces across Algeria. Statistical analysis techniques were employed to process the data, including descriptive statistics, statistical tests, and principal component analysis (PCA). This study reveals the diverse flea fauna in Algeria and their association with various host species, including wild and domestic animals. This comprehensive survey aimed to combine literature reviews, fieldwork, and statistical analysis to understand fleas’ diversity and host associations. The findings contribute to the growing knowledge of flea ecology and host-parasite interactions, with implications for public health and veterinary practices in Algeria and potentially other regions with similar ecological characteristics.
PMID:37619901 | DOI:10.1016/j.actatropica.2023.107004
Int J Cardiol. 2023 Aug 22:131290. doi: 10.1016/j.ijcard.2023.131290. Online ahead of print.
ABSTRACT
BACKGROUND: Establishing the appropriate rivaroxaban dose in older patients with non-valvular atrial fibrillation (NVAF) is important because of the high risk of adverse events. In this EXPAND study subanalysis, we examined the safety and efficacy of standard-dose (15 mg/day) and non-recommended reduced-dose (10 mg/day) rivaroxaban in patients aged ≥65 years with NVAF and preserved renal function.
METHODS: The entire analysis population (ALL cohort [n = 3982]; ≥65 years) was divided into early elderly (ELD) (65-74 years [n = 1444]) and late ELD (≥75 years [n = 2386]) sub-cohorts. Each sub-cohort was divided into reduced-dose and standard-dose groups. Kaplan-Meier survival curves with adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) were used to assess efficacy (thromboembolic events) and safety (hemorrhagic events) outcomes.
RESULTS: The aHR for major bleeding did not differ between the dosages in any of the cohorts (aHRs: 0.86-0.93). There were no significant differences in the occurrence of stroke + systemic embolism (SE) or stroke + SE + myocardial infarction (MI) + cardiovascular (CV) death among the cohorts. The aHR for MI/unstable angina + interventional/CV surgery + CV death was higher with 10-mg/day rivaroxaban than 15-mg/day rivaroxaban in the ALL cohort (aHR: 1.56 [95% CI 1.02-2.37], p = 0.039) and the late ELD sub-cohort (aHR: 1.86 [95% CI 1.01-3.42], p = 0.045).
CONCLUSIONS: Reduced-dose rivaroxaban may increase the risk of coronary artery events. The use of rivaroxaban 15 mg/day in patients with NVAF aged ≥75 years with preserved renal function was supported.
PMID:37619876 | DOI:10.1016/j.ijcard.2023.131290
Spine J. 2023 Aug 22:S1529-9430(23)03344-2. doi: 10.1016/j.spinee.2023.08.006. Online ahead of print.
ABSTRACT
BACKGROUND CONTEXT: Standard partial facetectomies, [Smith-Petersen Osteotomy, (SPO)], (Schwab-grade-I) and complete facet resection also known as Ponte osteotomy, [PO], (Schwab-grade-II) are narrowly akin and collectively appreciated as posterior column shortening osteotomies (PCOs). The former is considered a gentler osteotomy grade than the latter. The spine literature provides very little information on their comparison regarding perioperative complications and major curve correction rate outcomes.
PURPOSE: To determine whether Schwab-grade-I PCO (SPO) and Schwab-grade-II PCO (PO) are comparably safe in the surgical management of severe rigid scoliosis or kyphoscoliosis patients.
STUDY DESIGN/SETTING: Retrospective single-center comparative clinical study.
PATIENT SAMPLE: A total of 38 patients with severe rigid scoliosis or kyphoscoliosis were propensity score matched in this study, [SPO-treated]; n=21 (55.30%) and [PO-treated]; n=17 (44.70%), who underwent primary spinal deformity corrective surgery, respectively.
OUTCOME MEASURES: Outcomes included demographics, baseline pulmonary functional outcomes, perioperative complications incidence, hospital costs, Oswestry disability index (ODI), and scoliosis research society-22 (SRS-22) questionnaire scores.
METHODS: Following approval by the institutional review board (IRB) of Beijing Chaoyang Hospital-Affiliated Capital Medical University in Beijing, out of a total of 82 consecutive surgical patients with complete data demonstrating severe and/or rigid spinal deformity, a pool of 38/82 (46.3%) propensity-matched adults (≥18 years) with severe rigid scoliosis or kyphoscoliosis patients defined with a preoperative major curve magnitude of ≥80 degrees on anteroposterior plain radiographs, and flexibility of <25% on bending plain radiographs who underwent primary spinal deformity corrective surgery were retrospectively evaluated. The patients were dichotomized into two (2) osteotomy groups: standard (partial) facetectomy (SPO-treated), n=21 with an average age of 24.67 years, (i.e., Schwab-grade-I PCO) and complete facet excision, (PO-treated), (i.e., Schwab-grade-II PCO), n=17 with an average age of 23.12 years. The minimum follow-up period was 2 years. Primary outcomes included baseline and clinical features. Secondary outcomes included perioperative [intraoperative, immediate, and at 2-year postoperative] complication rates. Tertiary outcomes included perioperative ODI and SRS-22 scores. Statistical analyses were carried out by Student t-test and Pearson’s Chi-squared test (Fisher’s Exact Test), through Python statistical software package. Statistical significance was set at (p<0.05).
RESULTS: Of the 38 matched severe rigid scoliosis or kyphoscoliosis patients, 55.30% (n=21) were SPO-treated and 44.70% (n=17) were PO-treated patients, respectively. The overall average age of patients was 23.97 years, with a female incidence of 76.32%. Major curve correction rates were 49.19% and 57.40% in SPO-treated and PO-treated patients, respectively, (p>0.05). Immediately following surgery, comparable overall complication rates of 28.57% (n=6/21) vs 29.41% (n=5/17) were observed in the SPO-treated and PO-treated patients, respectively, (p=0.726). We observed incidences of 9.52%, (n=2/21) vs 5.88%, (n=1/17) for surgical intensive care unit (SICU) admission, and incidences of 4.76%, (n=1/21) vs 5.88%, (n=1/17) for cardiopulmonary events in SPO-treated versus PO-treated patients after surgery, respectively, (p>0.05). The incidences of neurological deficits in the SPO-treated and PO-treated patients were respectively, 14.29%, (n=3/21) vs 17.65%, (n=3/17) immediately following surgery, (p>0.05), and 0.00%, (n=0/21) in SPO-treated vs 14.28%, (n=3/21) in PO-treated patients at ≥2 years postoperative, (p<0.05). Among the 3 patients that reported neurological deficits in the PO-treated group at ≥2 years postoperative, 2 patients had preexisting baseline neurological deficits. The ODI score in the PO-treated group was significantly inferior at a minimum 2-year follow-up, (p<0.05).
CONCLUSIONS: In the current study, both SPO-treated and PO-treated patients demonstrated statistically comparable surgical complications immediately following corrective surgery. Severe rigid kyphoscoliosis patients with preexisting baseline neurological deficits were more inclined to sustain neurological morbidity following corrective surgery. PCO corrective techniques are warranted as safe options for treating patients with severe rigid spine deformity phenotypes.
PMID:37619870 | DOI:10.1016/j.spinee.2023.08.006