Shiyan Yan

Prof. Shiyan Yan


Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 December 2016 in Annals of Internal Medicine
Verified
Journal Article
Closed access
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ZLZhishun Liu
Zhishun Liu
SYShiyan Yan
Shiyan Yan
JWJiani Wu
Jiani Wu
LHLiyun He
Liyun He
NLNing Li
Ning Li
BLBaoyan Liu
Baoyan Liu
Acupuncture has been used for chronic constipation, but evidence for its effectiveness remains scarce. To determine the efficacy of electroacupuncture (EA) for chronic severe functional constipation (CSFC). Randomized, parallel, sham-controlled trial. (ClinicalTrials.gov: NCT01726504) 15 hospitals in China. Patients with CSFC and no serious underlying pathologic cause for constipation. 28 sessions of EA at traditional acupoints or sham EA (SA) at nonacupoints over 8 weeks. The primary outcome was the change from baseline in mean weekly complete spontaneous bowel movements (CSBMs) during weeks 1 to 8. Participants were followed until week 20. 1075 patients (536 and 539 in the EA and SA groups, respectively) were enrolled. The increase from baseline in mean weekly CSBMs during weeks 1 to 8 was 1.76 (95% CI, 1.61 to 1.89) in the EA group and 0.87 (CI, 0.73 to 0.97) in the SA group (between-group difference, 0.90 [CI, 0.74 to 1.10]; P < 0.001). The change from baseline in mean weekly CSBMs during weeks 9 to 20 was 1.96 (CI, 1.78 to 2.11) in the EA group and 0.89 (CI, 0.69 to 0.95) in the SA group (between-group difference, 1.09 [CI, 0.94 to 1.31]; P < 0.001). The proportion of patients having 3 or more mean weekly CSBMs in the EA group was 31.3% and 37.7% over the treatment and follow-up periods, respectively, compared with 12.1% and 14.1% in the SA group (P < 0.001). Acupuncture-related adverse events during treatment were infrequent in both groups, and all were mild or transient. Longer-term follow-up was not assessed. Acupuncturists could not be blinded. Eight weeks of EA increases CSBMs and is safe for the treatment of CSFC. Additional study is warranted to evaluate a longer-term treatment and follow-up. Ministry of Science and Technology of the People's Republic of China through the Twelfth Five-Year National Science and Technology Pillar Program.


3 December 2020 in American Journal of Gastroenterology
Verified
Journal Article
Closed access
BLBaoyan Liu
Baoyan Liu
JWJiani Wu
Jiani Wu
SYShiyan Yan
Shiyan Yan
KZKehua Zhou
Kehua Zhou
LHLiyun He
Liyun He
ZLZhishun Liu
Zhishun Liu
INTRODUCTION: This multicenter, randomized, noninferiority trial compared electroacupuncture with prucalopride for the treatment of severe chronic constipation (SCC). METHODS: Participants with SCC (≤ 2 mean weekly complete spontaneous bowel movements [CSBMs]) were randomly assigned to receive either 28-session electroacupuncture over 8 weeks with follow-up without treatment over 24 weeks or prucalopride (2 mg/d before breakfast) over 32 weeks. The primary outcome was the proportion of participants with ≥3 mean weekly CSBMs over weeks 3–8, based on the modified intention-to-treat population, with −10% as the noninferior margin. RESULTS: Five hundred sixty participants were randomized, 280 in each group. Electroacupuncture was noninferior to prucalopride for the primary outcome (36.2% vs 37.8%, with a difference of −1.6% [95% confidence interval, −8% to 4.7%], P < 0.001 for noninferiority); almost the same results were found in the per-protocol population. The proportions of overall CSBM responders through weeks 1–8 were similar in the electroacupuncture and prucalopride groups (24.91% vs 25.54%, with a difference of −0.63% [95% confidence interval, −7.86% to 6.60%, P = 0.864]). Except during the first 2-week treatment, no between-group differences were found in outcomes of excessive straining, stool consistency, and quality of life. Adverse events occurred in 49 (17.69%) participants in the electroacupuncture group and 123 (44.24%) in the prucalopride group. One non-treatment-related serious adverse event was recorded in the electroacupuncture group. DISCUSSION: Electroacupuncture was noninferior to prucalopride in relieving SCC with a good safety profile. The effects of 8-week electroacupuncture could sustain for 24 weeks after treatment. Electroacupuncture is a promising noninferior alternative for SCC (see Visual Abstract, http://links.lww.com/AJG/B776).

6 December 2024 in Systematic Reviews
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Journal Article
Open access
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TLTinglan Liu
Tinglan Liu
LJLijiao Jiang
Lijiao Jiang
SLShuangjing Li
Shuangjing Li
SCShuyang Cheng
Shuyang Cheng
RZRong Zhuang
Rong Zhuang
SYShiyan Yan
Shiyan Yan
Sham acupuncture is a widely accepted control in acupuncture clinical trials. Given the nature of acupuncture, it is warranted to assess the blinding of sham-controlled trials. Despite the sham acupuncture design having been widely used, the overall blinding of sham acupuncture and the characteristics of blinding assessment in acupuncture trials are unclear. This research aims to assess the blinding status of acupuncture clinical trials and explore the blinding assessment characteristics in acupuncture trials. This meta-analysis included all the acupuncture clinical trials published in English that performed blinding assessments and reported the results. We searched PubMed, Embase, and Web of Science for randomized controlled trials (RCTs) from inception to April 2024. The primary outcome is Bang’s Blinding Index (Bang’s BI) and 95% credibility interval (CrI) was pooled using a Bayesian hierarchical model. The study adheres to the PRISMA guidelines. Sixty-four eligible studies published from 1999 to 2024 were included. The mean of Bang’s BI was − 0.24 (95% CrI − 0.34 to − 0.14, tau2 = 0.13) for the sham acupuncture group and 0.41 (95% CrI 0.32 to 0.49, tau2 = 0.10) for the verum acupuncture group. The characteristics of blinding showed that 62.50% of the trials had a Bang’s BI greater than 0 in the verum group and less than 0 in the sham group; in 28.15% of the trials, the Bang’s BI was greater than 0 in the verum group and greater than 0 in the sham group. Subgroup analysis revealed that area, number of research centers, treatment sessions, acupoints number, and evaluation timepoint can influence blinding results. Overall blinding status in current acupuncture clinical trials shows a majority correctly guessing for the verum group and opposite guessing for the sham group. However, in some acupuncture trials, the blinding of sham acupuncture might be compromised. Factors such as the Asian population, penetrating sham needling, and querying participants about their group assignment during the study increase the risk of unblinding and warrant careful consideration in sham acupuncture control design. Furthermore, researchers should closely monitor the blinding status of sham acupuncture and transparently report details of blinding assessments. PROSPERO CRD42023403595.

30 May 2023 in BMC Complementary Medicine and Therapies
Verified
Journal Article
Open access
YXYixuan Xie
Yixuan Xie
XLXiaoyu Liu
Xiaoyu Liu
TLTinglan Liu
Tinglan Liu
CSChiyun Sun
Chiyun Sun
ZXZeyin Xin
Zeyin Xin
SYShiyan Yan
Shiyan Yan
Background: Sham acupuncture is usually used to assess the specific effects of acupuncture. However, the reporting quality of sham acupuncture remains unclear despite its critical importance in understanding and analyzing the effects of acupuncture. This paper presents a literature review aimed at assessing the quality of reporting of sham acupuncture in randomized controlled trials (RCTs) based on STRICTA 2010 and TIDieR-Placebo. Methods: Three electronic English-language databases (PubMed, MEDLINE and Embase) were searched from inception to March 7, 2022, and RCTs of sham acupuncture were identified. The reporting quality of sham acupuncture was assessed in accordance with the items recommended in STRICTA 2010 and TIDieR-Placebo. The reporting quality of other items related to sham acupuncture apart from items from these two checklists was also captured to further assess the reporting quality of sham acupuncture. Results: A total of 609 eligible studies were included. For all of the items recommended in STRICTA 2010 and TIDieR-Placebo, 100% of the studies reported a brief name that described the sham acupuncture, 93.9% studies reported the needle type, and 90.0% reported the names of the points used. Other items for which the reporting rates were above 50% included the number, frequency and duration of treatment sessions; needle retention time; and number of needle insertions per subject per session. Overall, 49.4% of the studies revealed the rationale why sham acupuncture was chosen, 39.7% of the studies involving insertion processes reported the depth of insertion, and 37.9% of the studies reported the needle manufacturer. Other items for which the reporting rates were below 30% included practitioner-related information, response sought, evaluation of blinding, intervention mode and environment, assisting tools, and the extent to which the treatment was varied. The items “Modifications”, “How well (planned)” and “How well (actual)” were not reported in any of the analyzed studies. Conclusions: The overall reporting quality of sham acupuncture in RCTs was suboptimal. Although STRICTA 2010 and TIDieR-Placebo could be beneficial for describing sham acupuncture, neither can offer recommendations specifically for sham acupuncture. There is thus an urgent need to develop specialized guidelines for reporting sham acupuncture in clinical trials.

3 May 2020 in medRxiv
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Preprint
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KSKangxing Song
Kangxing Song
TLTao Li
Tao Li
DLDan Luo
Dan Luo
FHFengsu Hou
Fengsu Hou
FBFengying Bi
Fengying Bi
YJYang Jiang
Yang Jiang
About 83000 COVID-19 patients were confirmed in China up to May 2020. The effects of this public health crisis - and the varied efforts to contains its spread - have altered individuals’ “normal” daily functioning. This impact on social, psychological, and emotional well-being remain relatively unexplored, especially the ways in which Chinese men and women experience and respond to potential behavioral-related stressors. A cross-sectional study was conducted in late February 2020. Demographic characteristics and residential living conditions were measured along with psychological stress and behavior responses to the COVID-19 epidemic. 3088 questionnaires were received: 1749 females (56.6%) and 1339 males (43.4%). The mean level of stress, as measured by a visual analog scale, was 3.4 (SD=2.4) - but differed significantly by sex. Besides sex, factors positively associated with stress included: age (≤45 years), employment (unsteady income, unemployed), risk infection population (exposed to COVID-19, completed medical observation), difficulties encountered (diseases, work/study, financial, mental), behaviors(higher desire for COVID-19 knowledge, more time spent on the COVID-19). “Protective” factors included frequently contact with colleagues, calmness, and psychological resilience. Males and females also differed significantly in adapting to current living/working status, coping with heating, and psychological support service needs. Among Chinese, self-reported stress related to the COVID-19 epidemic were significantly related to sex, age, employment, resilience and coping styles. Future responses to such public health threats may wish to provide sex- and/or age-appropriate supports for psychological health and emotional well-being to those at greatest risk of experiencing stress.