Background: The incidence of massive ventral hernias among the elderly will increase as the population ages. Advanced age is often viewed as a contraindication to elective hernia repair. A relationship between age and complications of component separation procedures for ventral hernias is not well established. This study evaluated the effect of age on the peri-operative safety of AWR.
Methods: The 2005-2013 ACS-NSQIP participant use data were reviewed to compare surgical site infection (SSI), overall morbidity, and serious morbidity in non-emergent component separation procedures among all age groups. All patients were stratified into four age quartiles and evaluated. Baseline characteristics included age, body mass index (BMI) and ASA 3 or 4 criteria. Statistical analysis was performed using SPSS. Odds ratios (OR) and 95% confidence intervals were reported as appropriate.
Results: 4485 patients were identified. Majority of the cases were clean (76.8%). Patients were divided into the following quartiles based on age. The older quartile had a mean age of 72.7 ± 4.87 years. There were baseline differences in BMI and chronic comorbidity severity (measured by incidence of ASA score of 3 or 4) between the age groups, with the oldest group having lower BMI but higher rate of ASA 3 or 4 (p < 0.0001 for both). The rate of postoperative SSI was significantly different between age quartile groups (ranging from 16.3% from the youngest group to 9.4% for the oldest group, p < 0.0001). After adjusting for other baseline differences, advanced age was independently associated with lower SSI rate (OR 0.55, 95% CI 0.41-0.73). There was no significant difference in overall morbidity (p = 0.277) and serious morbidity (p = 0.131) between groups.
Conclusion: AWR is being performed with safety across all age groups. In selected patients of advanced age, AWR can be performed with similar safety profile and low SSI rate.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/s10029-019-02069-6 | DOI Listing |
Osteoporosis (OP) is a prevalent metabolic bone disease globally. Currently, the development of Traditional Chinese Medicine (TCM) resources to unblock joints, strengthen bones, and enhance muscle function to regulate anti-osteogenic and anabolic metabolism and thus reshape intraosseous homeostasis was an effective way to alleviate OP. The F-E-D formula, comprising Fructus Psoraleae, Eucommia, and Drynariae Rhizoma, has shown efficacy in treating OP.
View Article and Find Full Text PDFNonlinear activation functions (NAFs) are essential in artificial neural networks, enhancing learning capabilities by capturing complex input-output relationships. However, most NAF implementations rely on additional optoelectronic devices or digital computers, reducing the benefits of optical computing. To address this, we propose what we believe to be the first implementation of a nonlinear modulation process using an electro-optic IQ modulator on a silicon photonic convolution operator chip as a novel NAF.
View Article and Find Full Text PDFNat Commun
January 2025
Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Xi'an Key Laboratory of Functional Organic Porous Materials, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, China.
Separation of multi-component mixtures in an energy-efficient manner has important practical impact in chemical industry but is highly challenging. Especially, targeted simultaneous removal of multiple impurities to purify the desired product in one-step separation process is an extremely difficult task. We introduced a pore integration strategy of modularizing ordered pore structures with specific functions for on-demand assembly to deal with complex multi-component separation systems, which are unattainable by each individual pore.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
Proton-electron mixed conductors (PEMCs) are an essential component for potential applications in hydrogen separation and energy conversion devices. However, the exploration of PEMCs with excellent mixed conduction, which is quantified by the ambipolar conductivity, σ = σσ/(σ + σ) (σ: electronic conductivity; σ: proton conductivity), is still a great challenge, largely due to the lack of structural characterization of both conducting mechanisms. In this study, we prepared a molecule-based proton-electron mixed-conducting cation radical salt, (ET)[Pt(pop)(Hpop)]·PhCN (ET: bis(ethylenedithio)tetrathiafulvalene, pop: PHO), by electrocrystallization.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
Chinese-German Joint Laboratory for Natural Product Research, Shaanxi International Cooperation Demonstration Base, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, China; Centre of Molecular & Environmental Biology, Department of Biology, University of Minho, Braga 4710-057, Portugal; Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada. Electronic address:
The increasing environmental prevalence of micro/nano plastics (MNPs) has raised significant concerns regarding their potential impact on human health, particularly in terms of immunotoxicity. However, the direct effects of MNPs on immune molecules, especially how they may influence protein liquid-liquid phase separation (LLPS)-a critical process implicated in various aspects of immune function-remain largely unexplored. This study addresses this gap by investigating the effects of polystyrene nanoparticles (PS NPs) with different surface modifications and sizes on LLPS in immunoglobulin Y (IgY) antibodies, critical components of the avian immune system.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!