Chengdu Jinjiang Maternity & Child Health Hospital

Title: Ultrasound-Guided Rectus Sheath Block in Gynecological Single-Port Laparoscopy
Brief Summary:
This study aims to evaluate the effects of preoperative ultrasound-guided bilateral rectus sheath block (RSB) on analgesic efficacy and recovery outcomes in patients undergoing gynecological single-port laparoscopy. The study is a prospective, randomized, double-blind, placebo-controlled trial involving 90 patients aged 18 to 65 years, with ASA I or II physical status, scheduled for single-port laparoscopic surgery lasting less than 2 hours. Participants are randomly assigned to either the RSB group or the placebo group, with 45 patients in each group. The RSB group receives bilateral RSB with 15 ml of 0.4% ropivacaine on each side, while the placebo group receives an equal volume of 0.9% saline. The primary outcome is postoperative pain assessed using the Visual Analog Scale (VAS) at multiple time points. Secondary outcomes include opioid consumption, effective activations of the analgesia pump, and postoperative recovery parameters such as time to mobilization and length of hospital stay. The study hypothesizes that preoperative ultrasound-guided bilateral RSB will significantly improve postoperative

The aim of the randomized controlled trial (RCT) is to evaluate the effects of an intervention program delivered via WeChat platform to support exclusive breastfeeding in China. WeChat, a free smart phone application, is the most popular social networking platform in China. It will be used to deliver health educational messages to the study participants. Our hypothesis is that the intervention program can lead to at least a 10% increase in exclusive breastfeeding prevalence at 6 months when compared to the control group.
A multicenter RCT of 1,000 participants will be conducted at four maternity hospitals in Chengdu, China. Eligible pregnant women who consent to participate will be recruited from the antenatal clinic at around 30 weeks of gestation and will be randomly assigned to either the intervention or control group on a 1:1 ratio.
After randomization, all participants will be asked to scan a Quick Response code to follow our WeChat public account, which can send push notifications to alert participants for new content, topics, links to a searchable library and frequently asked questions and answers. From baseline until childbirth, control group participants will receive non-breastfeeding related messages, such as healthy lifestyle and nutrition during pregnancy, from WeChat, whereas the intervention group participants will receive breastfeeding related messages, including preparation for breastfeeding after birth and the health benefits of breastfeeding, from WeChat. After childbirth, intervention group mothers will continue to receive information about breastfeeding for 6 months. The investigators will use WeChat to remind mothers about the importance of exclusive breastfeeding, build confidence and motivate them to continue exclusive breastfeeding. Meanwhile, the control group participants will receive information on other topics of interest to mothers, such as immunization, safety, infant growth, and etc.
Each participant will be interviewed in person by trained nurses at baseline, at discharge and be interviewed by telephone using structured questionnaires at 1, 4, and 6 months postpartum to collect detailed information on breastfeeding practices. All participants receive normal prenatal and postpartum maternity services. Cox proportional hazard models and multilevel mixed regression models will be performed respectively to compare the duration of exclusive breastfeeding and the rates of exclusive breastfeeding within six months postpartum between intervention and control groups.

Worldwide, osteoporosis causes more than 8.9 million fractures per annum. Osteoporosis used to be a significant public health concern that most commonly affected Caucasian women in Northern Europe and the United States. Recently, it has become a major public health problem in Asia, most notably among Chinese women.
We intend to conduct a cluster randomized controlled trial (RCT) to examine if a physical activity and education intervention, compared with an education-only intervention (waiting list for physical activity), can result in improved physical activity, reduced falls, and maintaining bone mass, among female nursing home residents in China. The aim of the current pilot and feasibility trial is to test the feasibility and acceptability of conducting these interventions.
A pilot and feasibility cluster RCT will be conducted for females aged 60 to 75 years living in nursing homes in Chengdu, the capital of Sichuan Province, Western China. The unit of cluster randomization is the nursing home. A total of four nursing homes (two state-owned and two private-owned) will be involved in the pilot and feasibility trial. They will be randomly selected and afterwards randomly assigned to either the intervention group (2 nursing homes) or control group (2 nursing homes). We seek to recruit 20 women from each nursing home.
The intervention group participants will exercise with the research staff or under supervision of the trained nursing home staff, and will receive face-to-face workshops, booklet, newsletters, phone calls, and short message service (SMS) reminders. Participants in the control group will only receive educational materials (i.e. face-to-face workshops and booklet) and will be wait listed to receive no other interventions of this study until after the post-intervention. All participants will be referred to doctors for advice and standard care as usual.
The primary outcome is the change of habitual physical activity from baseline to 12 months, which will be measured using the International Physical Activity Questionnaire - Short Form (IPAQ-SF). Secondary outcomes include incidental falls and change in bone mineral density (BMD) from baseline to 12 months. The study results will serve to provide an estimate of the effect size, intraclass correlation coefficient (ICC) and rates of eligibility, recruitment and attrition, which may enable a more accurate sample size calculation for a definitive RCT.