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Open Medicine (Warsaw, Poland) 2024[This retracts the article DOI: 10.1515/med-2024-0913.].
[This retracts the article DOI: 10.1515/med-2024-0913.].
PubMed: 38947216
DOI: 10.1515/med-2024-1000 -
Orthopedic Reviews 2024Hip-knee-ankle angle (HKA) on Full Limb Radiographs (FLRs) is the gold standard for coronal knee alignment assessment. Despite the widespread utilization of the more...
Femorotibial angle on short knee radiographs fails to accurately predict the lower limb mechanical alignment. A systematic review and meta-analysis on different femorotibial angle definitions and short knee radiograph types.
INTRODUCTION
Hip-knee-ankle angle (HKA) on Full Limb Radiographs (FLRs) is the gold standard for coronal knee alignment assessment. Despite the widespread utilization of the more convenient femorotibial angle (FTA) on either antero-posterior (AP) or postero-anterior (PA) short knee radiographs (SKRs), its definition and correlation with HKA remains controversial. This review is the first to systematically investigate FTA-HKA correlation and the effect of different FTA methods and SKRs.
METHODS
Systematic literature search (Pubmed, Scopus, Cochrane Library) followed PRISMA guidelines, to evaluate studies examining the FTA-HKA correlation. Meta-analyses compared the 3 most common FTA methods, knee center determination method and SKR types.
RESULTS
17 studies (2597 patients, 3234 knees) were included. The strongest correlation with HKA (r = 0.78) was found for FTA Method 1 (angle formed by lines drawn from the midpoint of tibial spines to points 10 cm above and below the joint line). No significant differences were observed when grouping the FTA methods by knee center assessment (Group I, r = 0.78; Group II, r = 0.77). AP SKRs showed a trend towards stronger FTA-HKA correlation compared to PA SKRs, in both Method 1 (r = 0.79 vs 0.75) and Method 3 (r = 0.80 vs 0.66).
CONCLUSION
Irrespective of its definition or type of SKR used, FTA lacks reliable accuracy in predicting the HKA in most knees. FLRs should be used whenever precise estimation of the patient's alignment is necessary. Caution is warranted in interpreting studies investigating knee alignment or knee arthroplasty outcomes based on FTA.
PubMed: 38947178
DOI: 10.52965/001c.120053 -
Cureus Jun 2024As the age increases particularly above the age of 50 years, there is a significantly higher risk of developing gallstone-related complications especially cholecystitis... (Review)
Review
A Systematic Review and Meta-Analysis of the Management of Gallstone Cholecystitis and Common Biliary Duct Stones to Reduce the Incidence of Complications in Elderly Patients.
As the age increases particularly above the age of 50 years, there is a significantly higher risk of developing gallstone-related complications especially cholecystitis and common bile duct stones with its associated consequences. Complications that arise after surgical operations for cholecystitis have been reported to have negative impacts on senior patients. These effects include a higher rate of complications, a longer hospital stay, higher expenditures, and decreased patient satisfaction. Therefore, finding the most effective treatment for cholecystitis in older patients is still a challenge. The aim of the study was carried out in order to identify many approaches that can be taken in the treatment of cholecystitis and stones in the common bile duct in older patients. A search was conducted through Medline (PubMed), EMBASE, ProQuest, and Cochrane using relevant Medical Subject Heading (MeSH) terms and keywords (elderly, age over 50, cholecystitis, bile duct stones, cholecystectomy, ERCP, surgical, conservative management, and open). The searches were limited to studies on elderly individuals over 50 who had cholecystectomy and endoscopic retrograde cholangiopancreatography between January 2000 and December 2022. The meta-analysis used the Mantel-Haenszel odds ratio (MHOR) and 95% confidence interval (CI). Aries Systems Corporation's Editorial Manager® (Aries Systems Corporation, North Andover, USA) and ProduXion Manager® (Aries Systems Corporation, North Andover, USA) facilitated the study. Out of 102 citations, 39 studies were selected for further study. After that, 18 studies were eliminated, leaving 21 for meta-analysis. The study found a protective risk of cholecystitis in cholecystectomy patients (MHOR = 0.16; 95%, CI = 0.10 to 0.25; p 0.001). Developing cholecystitis was substantially lower in early cholecystectomy patients (MHOR = 0.16; 95%, CI = 0.10 to 0.25; p 0.001). There was no significant difference in cholecystitis risk between open and laparoscopic surgery (MHOR = 0.65; 95%, CI = 0.41 to 1.04; p 0.07). Cholecystectomy performed at an earlier stage protects elderly patients from developing recurrent cholecystitis. In contrast to late cholecystitis, in which the patient would experience several attacks of cholecystitis, early cholecystectomy protects against the recurrence of the condition.
PubMed: 38947136
DOI: 10.7759/cureus.63115 -
Cureus Jun 2024Psoriasis is a chronic immune-mediated disease affecting the skin, nails, and/or joints. It is associated with systemic inflammation and may also be linked to an... (Review)
Review
Psoriasis is a chronic immune-mediated disease affecting the skin, nails, and/or joints. It is associated with systemic inflammation and may also be linked to an increased risk of atherosclerotic cardiovascular disease (ASCVD). The objectives of this study were to determine the overall risk of ASCVD in patients with psoriasis and to evaluate the risk according to ASCVD type and the severity of psoriasis. This was a systematic review and meta-analysis of observational studies reporting the association between psoriasis and one or more of the clinical types of ASCVD. We searched Medical Literature Analysis and Retrieval System Online (MEDLINE) via PubMed, Excerpta Medica Database (EMBASE), Scopus, Bielefeld Academic Search Engine (BASE), and Google Scholar for relevant studies in the English language from the beginning of their records to July 2023. Study selection and data extraction were conducted by four independent reviewers. A total of 21 observational studies (three cross-sectional, one case-control, and 17 cohort) were included in this review, representing a total of 778,049 patients with psoriasis and 16,881,765 control subjects without psoriasis. The included studies had varying degrees of covariate adjustment, and thus, their findings may have been subject to residual confounding. All the meta-analyses used the adjusted effect sizes and were based on the random-effects model. However, the cohort studies were analysed separately from the non-cohort studies (the case-control and cross-sectional studies). There was a significant association between psoriasis and ASCVD (cohort studies: hazard ratio (HR), 1.21; 95% confidence interval (CI), 1.14 to 1.28; I = 63%; p < 0.001; non-cohort studies: odds ratio (OR), 1.60; 95% CI, 1.34 to 1.92; I = 31%; p = 0.23). Psoriasis was also significantly associated with myocardial infarction (cohort studies: HR, 1.20; 95% CI, 1.10 to 1.31; I = 60%; p < 0.001; non-cohort studies: OR, 1.57; 95% CI, 1.15 to 2.15; I = 74%; p = 0.05), coronary artery disease (cohort studies: HR, 1.20; 95% CI, 1.13 to 1.28; I = 67%; p < 0.001; non-cohort studies: OR, 1.60; 95% CI, 1.34 to 1.92; I = 31%; p = 0.23), aortic aneurysm (HR, 1.45; 95% CI, 1.04 to 2.02; I = 67%; p = 0.08) but not with ischaemic stroke (HR, 1.14; 95% CI, 0.96 to 1.36; I = 44%; p = 0.17). Pooled analysis in terms of the severity of psoriasis showed that both mild (cohort studies: HR, 1.17; 95% CI, 1.08 to 1.26; I = 74%; p < 0.001; non-cohort studies: OR, 1.54; 95% CI, 1.25 to 1.90; I = 0%; p = 0.50) and severe (cohort studies: HR, 1.43; 95% CI, 1.23 to 1.65; I = 65%; p < 0.001; non-cohort studies: OR, 1.65; 95% CI, 1.29 to 2.12; I = 25%; p = 0.26) psoriasis were significantly associated with ASCVD. Psoriasis (including mild and severe disease) is associated with an increased risk of ASCVD, including coronary artery disease (CAD) and aortic aneurysm (AA). ASCVD risk assessment and prevention should be prioritised in all adult psoriasis patients. Future observational studies investigating the association between psoriasis and ASCVD should conduct a more comprehensive adjustment of covariates.
PubMed: 38947134
DOI: 10.7759/cureus.63379 -
Endoscopic Ultrasound 2024The altered anatomy in Roux-en-Y gastric bypass (RYGB) makes conventional endoscopic retrograde cholangiopancreatography (ERCP) a technically challenging procedure.... (Review)
Review
The altered anatomy in Roux-en-Y gastric bypass (RYGB) makes conventional endoscopic retrograde cholangiopancreatography (ERCP) a technically challenging procedure. EUS-directed transgastric ERCP (EDGE) and laparoscopic-assisted ERCP (LA-ERCP) are alternative modalities used with comparable efficacy and adverse events in such patients. We conducted a meta-analysis comparing EDGE and LA-ERCP to assess the efficacy and safety in patients with RYGB. We conducted a comprehensive literature search from inception to July 7, 2022, on MEDLINE, EMBASE, Cochrane Register of Controlled Trials, and Web of Science databases using the core concepts of EDGE and LA-ERCP. We excluded case reports, case series (<10 patients), and review articles. Relative risk (RR) was calculated when comparing dichotomous variables, whereas mean difference was calculated for continuous outcomes. A 95% confidence interval (CI) and values (<0.05 considered significant) were also generated. The search strategy yielded a total of 55 articles. We finalized 4 studies with total 192 patients (75 EDGE and 117 LA-ERCP). The rates of technical success were not significantly different for LA-ERCP and EDGE (RR, 0.994; 95% CI, 0.939-1.051; = 0.830, = 0%) Similarly, no difference in adverse events was noted between the 2 groups (RR, 1.216; 95% CI, 0.561-2.634; = 0.620, = 10.67%). Shorter procedure time was noted for EDGE compared with the LA-ERCP group (mean difference, 91.53 min; 95% CI, 69.911-113.157 min; < 0.001, = 8.32%). EDGE and LA-ERCP are comparable in terms of efficacy and safety. In addition, EDGE has overall lower procedural time. Our study suggests that EDGE should be considered as a first-line therapy if expertise available.
PubMed: 38947118
DOI: 10.1097/eus.0000000000000032 -
MedRxiv : the Preprint Server For... Jun 2024Low-intensity Transcranial Ultrasound Stimulation (TUS) is a promising non-invasive technique for deep-brain stimulation and focal neuromodulation. Research with animal...
UNLABELLED
Low-intensity Transcranial Ultrasound Stimulation (TUS) is a promising non-invasive technique for deep-brain stimulation and focal neuromodulation. Research with animal models and computational modelling has raised the possibility that TUS can be biased towards enhancing or suppressing neural function. Here, we first conduct a systematic review of human TUS studies for perturbing neural function and alleviating brain disorders. We then collate a set of hypotheses on the directionality of TUS effects and conduct an initial meta-analysis on the human TUS study reported outcomes to date ( 32 studies, 37 experiments). We find that parameters such as the duty cycle show some predictability regarding whether the targeted area's function is likely to be enhanced or suppressed. Given that human TUS sample sizes are exponentially increasing, we recognize that results can stabilize or change as further studies are reported. Therefore, we conclude by establishing an Iowa-Newcastle (inTUS) resource for the systematic reporting of TUS parameters and outcomes to support further hypothesis testing for greater precision in brain stimulation and neuromodulation with TUS.
HIGHLIGHTS
Systematic review of human TUS studies for enhancing or suppressing neural functionCollated set of hypotheses on using TUS to bias towards enhancement or suppressionMeta-analysis results identify parameters that may bias the directionality of effectsTUS resource established for systematic reporting of TUS parameters and outcomes.
PubMed: 38947047
DOI: 10.1101/2024.06.14.24308829 -
MedRxiv : the Preprint Server For... Jun 2024Low power is a problem in many fields, as underpowered studies that find a statistically significant result will exaggerate the magnitude of the observed effect size. We...
UNLABELLED
Low power is a problem in many fields, as underpowered studies that find a statistically significant result will exaggerate the magnitude of the observed effect size. We quantified the statistical power and magnitude error of studies of epilepsy surgery outcomes. The median power across all studies was 14%. Studies with a median sample size or less (n<=56) and a statistically significant result exaggerated the true effect size by a factor of 5.4 (median odds ratio 9.3 vs. median true odds ratio 1.7), while the Bayesian estimate of the odds ratio only exaggerated the true effect size by a factor of 1.6 (2.7 vs. 1.7). We conclude that Bayesian estimation of odds ratio attenuates the exaggeration of significant effect sizes in underpowered studies. This approach could help improve patient counseling about the chance of seizure freedom after epilepsy surgery.
SHORT SUMMARY
We estimated the statistical power of studies predicting seizure freedom after epilepsy surgery. We exacted data from a Cochrane meta-analysis. The median power across all studies was 14%. Studies with a median sample size or less (n<=56) and a statistically significant result exaggerated the true effect size by a factor of 5.4, while the Bayesian estimate of the odds ratio only exaggerated the true effect size by a factor of 1.6. We conclude that Bayesian estimation of odds ratios attenuates the exaggeration of significant effect sizes in underpowered studies. This result could improve patient counseling regarding epilepsy surgery.
PubMed: 38947027
DOI: 10.1101/2024.06.21.24309313 -
MedRxiv : the Preprint Server For... Jun 2024Network meta-analysis, also known as mixed treatments comparison meta-analysis or multiple treatments meta-analysis, extends conventional pairwise meta-analysis by...
UNLABELLED
Network meta-analysis, also known as mixed treatments comparison meta-analysis or multiple treatments meta-analysis, extends conventional pairwise meta-analysis by simultaneously synthesizing multiple interventions in a single integrated analysis. Despite the growing popularity of network meta-analysis within comparative effectiveness research, it comes with potential challenges. For example, within-study correlations among treatment comparisons are rarely reported in the published literature. Yet, these correlations are pivotal for valid statistical inference. As demonstrated in earlier studies, ignoring these correlations can inflate mean squared errors of the resulting point estimates and lead to inaccurate standard error estimates. This paper introduces a composite likelihood-based approach that ensures accurate statistical inference without requiring knowledge of the within-study correlations. The proposed method is computationally robust and efficient, with substantially reduced computational time compared to the state-of-the-science methods implemented in R packages. The proposed method was evaluated through extensive simulations and applied to two important applications including a network meta-analysis comparing interventions for primary open-angle glaucoma, and another comparing treatments for chronic prostatitis and chronic pelvic pain syndrome.
HIGHLIGHTS
Network meta-analysis extends conventional pairwise meta-analysis by simultaneously synthesizing multiple interventions in a single integrated analysis.A significant challenge in network meta-analysis is the lack of reported within-study correlations among treatment comparisons in the published studies. We propose a new method for network meta-analysis that ensures vaild statistical inference without the need for knowledge of within-study correlations.The proposed method employs a composite likelihood and a sandwich-type robust variance estimator, offering a computationally efficient and scalable solution, particularly for network meta-analysis with a large number of treatments and studies. The proposed method can be easily applied to any univariate network meta-analysis project without requiring knowledge of within-study correlations among treatment comparisons.
PubMed: 38947001
DOI: 10.1101/2024.06.19.24309163 -
MedRxiv : the Preprint Server For... Jun 2024Clonal hematopoiesis of indeterminate potential (CHIP) is a common inflammatory condition of aging that causes myriad end-organ damage. We have recently shown...
BACKGROUND
Clonal hematopoiesis of indeterminate potential (CHIP) is a common inflammatory condition of aging that causes myriad end-organ damage. We have recently shown associations for CHIP with acute kidney injury and with kidney function decline in the general population, with stronger associations for CHIP driven by mutations in genes other than (non- CHIP). Longitudinal kidney function endpoints in individuals with pre-existing chronic kidney disease (CKD) and CHIP have been examined in two previous studies, which reported conflicting findings and were limited by small sample sizes.
METHODS
In this study, we examined the prospective associations between CHIP and CKD progression events in four cohorts of CKD patients (total N = 5,772). The primary outcome was a composite of 50% kidney function decline or kidney failure. The slope of eGFR decline was examined as a secondary outcome. Mendelian randomization techniques were then used to investigate potential causal effects of CHIP on eGFR decline. Finally, kidney function was assessed in adenine-fed CKD model mice having received a bone marrow transplant recapitulating -CHIP compared to controls transplanted wild-type bone marrow.
RESULTS
Across all cohorts, the average age was 66.4 years, the average baseline eGFR was 42.6 ml/min/1.73m , and 24% had CHIP. Upon meta-analysis, non- CHIP was associated with a 59% higher relative risk of incident CKD progression (HR 1.59, 95% CI: 1.02-2.47). This association was more pronounced among individuals with diabetes (HR 1.29, 95% CI: 1.03-1.62) and with baseline eGFR ≥ 30 ml/min/1.73m (HR 1.80, 95% CI: 1.11-2.90). Additionally, the annualized slope of eGFR decline was steeper among non- CHIP carriers, relative to non-carriers (β -0.61 ± 0.31 ml/min/1.73m , p = 0.04). Mendelian randomization analyses suggested a causal role for CHIP in eGFR decline among individuals with diabetes. In a dietary adenine mouse model of CKD, -CHIP was associated with lower GFR as well as greater kidney inflammation, tubular injury, and tubulointerstitial fibrosis.
CONCLUSION
Non- CHIP is a potentially targetable novel risk factor for CKD progression.
PubMed: 38946975
DOI: 10.1101/2024.06.19.24309181 -
MedRxiv : the Preprint Server For... Jun 2024Severe acute malnutrition (SAM), defined anthropometrically as a weight-for-length z-score more than 3 standard deviations below the mean (WLZ<-3), affects 19 million...
Severe acute malnutrition (SAM), defined anthropometrically as a weight-for-length z-score more than 3 standard deviations below the mean (WLZ<-3), affects 19 million children under 5-years-old worldwide. Complete anthropometric recovery after standard inventions is rare with children often left with moderate acute malnutrition (MAM; WLZ -2 to -3). Here we conduct a randomized controlled trial (RCT), involving 12-18-month-old Bangladeshi children from urban and rural sites, who after hospital-based treatment for SAM received a 3-month intervention with a microbiota-directed complementary food (MDCF-2) or a ready-to-use supplementary food (RUSF) as they transitioned to MAM. The rate of WLZ improvement was significantly greater with MDCF-2 than the more calorically-dense RUSF, as we observed in a previous RCT of Bangladeshi children with MAM without antecedent SAM. A correlated meta-analysis of aptamer-based measurements of 4,520 plasma proteins in this and the prior RCT revealed 215 proteins positively-associated with WLZ (prominently those involved in musculoskeletal and CNS development) and 44 negatively-associated proteins (related to immune activation), with a significant enrichment in levels of the positively WLZ-associated proteins in the MDCF-2 arm. Characterizing changes in 754 bacterial metagenome-assembled genomes in serially collected fecal samples disclosed the effects of acute rehabilitation for SAM on the microbiome, its transition as each child achieves a state of MAM, and how specific strains of Prevotella copri function at the intersection between MDCF-2 glycan metabolism and the rescue of growth faltering. These results provide a rationale for further testing the generalizability of the efficacy of MDCF and identify biomarkers for defining treatment responses.
PubMed: 38946965
DOI: 10.1101/2024.06.11.24307076