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A meta-analysis was conducted to comprehensively explore the effects of platelet-rich plasma (PRP) combined with negative pressure wound therapy (NPWT) in treating patients with chronic wounds. Computer searches were conducted, from database infection to November 2023, in EMBASE, Google Scholar, Cochrane Library, PubMed, Wanfang and China National Knowledge Infrastructure databases for randomized controlled trials (RCTs) on the use of PRP combined with NPWT technology for treating chronic wounds. Two researchers independently screened the literature, extracted data and conducted quality assessments according to the inclusion and exclusion criteria. Stata 17.0 software was employed for data analysis. Overall, 18 RCTs involving 1294 patients with chronic wounds were included. The analysis revealed that, compared with NPWT alone, the use of PRP combined with NPWT technology significantly improved the healing rate (odds ratios [OR] = 1.92, 95% confidence intervals [CIs]: 1.43–2.58, p < 0.001) and total effective rate (OR = 1.31, 95% CI: 1.23–1.39, p < 0.001), and also significantly shortened the healing time of the wound (standardized mean difference = −2.01, 95% CI: −2.58 to −1.45, p < 0.001). This study indicates that the treatment of chronic wounds with PRP combined with NPWT technology can significantly enhance clinical repair effectiveness and accelerate wound healing, with a high healing rate, and is worth further promotion and practice.
The management of chronic wounds has presented a significant dilemma, which is evident not only in clinical treatment but also in the substantial burden it places on medical resources. The global COVID-19 pandemic in 2020 is likely to further exacerbate this trend. Therefore, it is imperative to delve deeper into the impact of chronic wound on disease burden across different regions and populations. In this study, we focused on decubitus ulcers (DU) as representative chronic wounds and utilized data from the Global Burden of Disease (GBD) 2019 database (http://ghdx.healthdata.org/gbd-results-tool) pertaining to age, gender, region, year and socio-demographic index (SDI) group. Disability-adjusted life years (DALYs) and mortality were utilized as indicators to assess the burden of DU. The analysis and visualization were performed using R software (version 4.2.3). A decrease in the global ASRs of DALYs and mortality for DU was observed across most regions between 1990 and 2019. The reduction in burden was particularly significant in regions characterized by a high SDI, while regions with a high-middle SDI experienced an increase. The burden of DU increased with age for both males and females, with males generally experiencing a higher burden compared to females. Strengthening population-based data on the prevalence of DU and implementing dynamic monitoring at the public health level will enable policymakers to develop evidence-based strategies for efficient allocation of healthcare resources.
by Yichao Yu, Dongye Li, Yifan Lu, Jing Mi
This study aimed to: (i) analyze the load characteristics of 4 weeks cross-country skiing altitude training; (ii) analyze the relationships between methods of monitoring training load and physiological indicators changes of elite male Chinese cross-country skiers during this period. Practitioners collected load data during 4 weeks of altitude training camp. Participants performed maximal oxygen uptake, lactate threshold, body composition, and skierg power test before and after the training camp to investigate the changes in physiological performance. Edwards TRIMP, Lucia TRIMP, and session rating of perceived exertion were collected as internal load. Training distance, time recorded by the Catapult module were collected as external load. The result revealed a " pyramid " pattern in the load characteristics during the altitude training camp. The correlation between luTRIMP and percent change in physiological indicators was highest. Percentage changes in lactate threshold velocity (r = .78 [95% CI -.01 to .98]), percentage changes in lactate threshold HR (r = .71 [95% CI .14- .99]), percentage changes in maximum HR (r = .83 [95% CI .19–1.00]), percentage changes in skierg power-to-weight ratio (r = .75 [95% CI -.28 to .98]) had very large relationships with luTRIMP. In cross-country skiing altitude training, training loads should be reasonably controlled to ensure that athletes do not become overly fatigued. Methods of training load monitoring that combine with athletes’ physiological characteristics and program characteristics have the highest dose-response relationships, it is an important aspect of cross-country ski training load monitoring. The luTRIMP could be a good monitoring tool in cross-country skiing altitude training.
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