The HPLC fingerprint differences ofRadix Platycodonis from different origins were studied to provide references for their quality control and production. The total platycodins were purified by DB101 macroporous resin. HPLC-ELSD fingerprints of the total platycodins for 39 batches ofRadix Platycodonis samples from 9 provinces were performed on an Agilent HC-C8 column (4.6 mm x 250 mm, 5μm) with gradient elution. The mobile phase was acetonitrile-0.5% acetic acid. The injection volume was 6μL. The flow rate was 0.5 mL·min-1. The temperature of drift tube was set at 90℃. And the gas flow (N2) was set at 1.2 mL·min-1. The results showed that there were large differences in the quality ofRadix Platycodonis from different origins with the common fingerprints of 6 batches of samples fromChifeng in Inner Mongolia as references. The quality ofRadix Platycodonis was closely related to the seeds, the ecological environment, the way of drying and storing and so on. It was concluded that it was important to strengthen the provenance base construction, standardization of the seeds, reasonable formulation of the regionalization, and standardization of the production processing for the cultivation and production ofRadix Platycodonis.

Objective:This article is to study the quality of life and the situation of social support for the elderly in Weifang while analyzing the correlation between them.Methods:This study was undertaken among elderly aged over 60 followning the European five D health scale and Social Support Rating Scale.The results were analyzed statistically.Results:On the living quality of elderly in Weifang,the EQ-SD index was (0.78 ±0.12) and the EQ -VAS index was (76.42 ± 14.67).The result from each scale shows a tremendous health issue among the elderly in Weifang.On the other hand,the situation of social support for the elderly in Weifang appeared optimistic.Still,this situation can be improved in practical supports.Also,there was significant negative correlation between EQ-5D and SSRS (r =0.260,P ＜ 0.05).Results of multiple linear regression show that the subjective support and objective support may enter the regression equation.Conclusion:To conclude,the city of Weifang awaits improvements in aged care and social support for the elderly.Only by this chance the quahty of life of the elderly may be improved.

Organ shortage is a common problem in the field of transplantation worldwide. It is urgent to expand the donor pool via different effective and safe approaches. Recently, "the statement from international collaborative on expanding controlled donation after the circulatory determination of death (cDCDD)" has attracted widespread attention from scholars. The statement aims to promote cDCDD in order to increase organ donation rates, with the ultimate goal of achieving self-sufficiency in transplantation. In this article, the key contents mentioned in the statement were summarized, the terminology update and relevant discussion of donation after the circulatory determination of death (DCDD), the development trend of DCDD, the basic part of the clinical pathway of cDCDD and the key factors affecting the implementation of cDCDD were illustrated, and the inspiration drew from this statement to the sustainable development of organ donation program in China was reflected.

Objective    To compare the complications of transcatheter aortic valve replacement (TAVR) between aortic valve stenosis (AS) patients ≥90 years and patients <90 years, and to explore the efficacy and safety of TAVR in AS patients ≥90 years. Methods    Databases including PubMed, The Cochrane Library, EMbase, Medline, CNKI, Wanfang Data and China Biology Medicine disc (CBMdisc) were searched by computer from inception to May 2019. Two reviewers independently screened the literature, extracted the data and evaluated the quality of the included studies. RevMan 5.3 and Stata 15.0 were used for meta-analysis. Results    A total of 12 cohort studies were included, including 60 186 patients (11 350 patients ≥90 years and 48 836 patients <90 years). Meta-analysis showed that compared with the patients <90 years, those ≥90 years had higher all-cause mortality in the hospital (OR=1.51, 95%CI 1.37 to 1.66, P<0.000 01), on postoperative 30 d (OR=1.68, 95%CI 1.50 to 1.89, P<0.000 01) and at postoperative 1 year (OR=1.36, 95%CI 1.25 to 1.48, P<0.000 01), and had higher incidence of stroke (OR=1.31, 95%CI 1.18 to 1.46, P<0.000 01), bleeding events (OR=1.14, 95%CI 1.07 to 1.20, P<0.000 01) and vascular complications (OR=1.31, 95%CI 1.18 to 1.46, P<0.000 01). Conclusion    All-cause mortality and the incidence of some complications after TAVR in AS patients ≥90 years are higher than those in patients <90 years, but this difference is clinically acceptable. Therefore, TAVR treatment is safe and  effective for elderly patients.

Objective    To systematically review the clinical outcome of patients with new-onset left bundle branch block (LBBB) following transcatheter aortic valve replacement (TAVR). Methods    Electronic search was performed in PubMed, EMbase, Cochrane Library, Web of Science, CNKI, Wanfang and CBM databases to identify studies about the new-onset LBBB after TAVR from inception to March 19, 2022. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies, then, meta-analysis was performed by using Stata 15.0 software. Results    A total of 17 cohort studies were included, covering 9 205 patients, including 2 202 patients with new-onset LBBB and 7 003 without new-onset LBBB after TAVR. The results of meta-analysis showed that patients with new-onset LBBB after TAVR at 30-day (RR=1.65, 95%CI 1.30 to 2.10, P<0.001) and 1-year (RR=1.30, 95%CI 1.16 to 1.45, P<0.001) all-cause mortality was higher than no new-onset LBBB group. One-year cardiovascular mortality was higher in the new-onset LBBB group (RR=1.47, 95%CI 1.21 to 1.79, P<0.001). In the occurrence of 30-day (RR=1.51, 95%CI 1.10 to 2.08, P=0.011) and 1-year (RR=1.34, 95%CI 1.14 to 1.58, P=0.001) rehospitalization rate, 30-day (RR=3.05, 95% CI 1.49 to   6.22, P=0.002) and 1-year (RR=2.15, 95%CI 1.52 to 3.03, P<0.001) pacemaker implantation, the incidence of patients with new-onset LBBB was higher than that of the no new-onset LBBB group. Conclusion    Compared with the patients without LBBB after TAVR, the clinical prognosis of patients with new-onset LBBB after TAVR is poor. In the future, the management and follow-up of the patients with LBBB after TAVR should be further strengthened to improve the prognosis of patients.

Objective    To systematically review the impact of chronic kidney disease (CKD) at different stages on prognosis of transcatheter aortic valve replacement (TAVR). Methods    Databases including PubMed, the Cochrane Library, EMbase, Web of Science, CNKI, Wanfang and the Chinese Biomedical Literature Database (CBM) were searched by computer to collect cohort studies on impact of different stages of CKD on prognosis of TAVR from inception to July 2020. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies, and then, meta-analysis was performed by using Stata 15.0 software. Risk of study bias was assessed using the Newcastle-Ottawa Scale (NOS). Results    A total of 17 cohort studies were included with NOS score≥6 points. The results of meta-analysis indicated that: compared with the patients without CKD, all-cause mortality of CKD stage 3 patients at 30 day (RR=1.29, 95%CI 1.22-1.37, P<0.001) and 1 year (RR=1.24, 95%CI 1.19-1.28, P<0.001), all-cause mortality of CKD stage 4 patients at 30 day (RR=2.10, 95%CI 1.90-2.31, P<0.001) and 1 year (RR=1.89, 95%CI 1.62-2.19, P<0.001), and all-cause mortality of CKD stage 5 patients at 30 day (RR=2.22, 95%CI 1.62-2.19, P<0.001) and 1 year (RR=2.24, 95%CI 1.75-2.87, P<0.001) were significantly increased and were associated with the severity of CKD. The occurrence rates of 1-year cardiovascular mortality, postoperative acute kidney injury and bleeding events were all higher in patients with CKD. Conclusion    CKD at stages 3, 4 and 5 is associated with increased all-cause mortality after TAVR, and the higher the stage of CKD is, the higher the risk of all-cause mortality at 30-day and 1-year follow-up is. Due to limited quality and quantity of the included studies, more high-quality studies are required to verify above conclusions.

Objective    To systematically review the efficacy and safety of transfemoral transcatheter aortic valve replacement (TFTAVR) under local anesthesia (LA) and general anesthesia (GA). Methods    Electronic databases including PubMed, EMbase, The Cochrane Library, Web of Science, CNKI, WanFang and CBM were searched to collect randomized controlled trial and cohort studies on clinical outcomes of TFTAVR under LA and GA from inception to September 2020. Two authors independently screened literature, extracted data and assessed the quality of studies, and a meta-analysis was performed by using Stata 16.0 software. Results    A total of 30 studies involving 52 087 patients were included in this study. There were 18 719 patients in the LA group and 33 368 patients in the GA group. The results of meta-analysis showed that the in-hospital all-cause mortality rate [RR=0.65, 95%CI (0.45, 0.94), P=0.021], 30-day all-cause mortality rate [RR=0.73, 95%CI (0.62, 0.86), P<0.001], 30-day stroke [RR=0.82, 95%CI (0.68, 0.98), P=0.025], cardiac arrest [RR=0.50, 95%CI (0.34, 0.73), P<0.001], ICU stay time [RR=−6.86, 95%CI (−12.31, −1.42), P=0.013], and total hospital stay  time [RR=−2.02, 95%CI (−2.59, −1.45), P<0.001] in the LA group were all better than those in the GA group. There was no significant difference in the in-hospital stroke [RR=0.83, 95%CI (0.69, 1.00), P=0.053], in-hospital myocardial infarction (MI) [RR=1.74, 95%CI (0.43, 7.00), P=0.434], or 30-day MI [RR=0.77, 95%CI (0.42, 1.42), P=0.404] between the two groups. Conclusion    LA provides a safe and effective way to induce sedation without intubation, and may be a good alternative to GA for TFTAVR.