Cancer has impacted patients’ quality of life (QoL). Qigong, a type of mind-body exercise, has been adopted by some patients with cancer to improve their QoL. However, various lengthy questionnaires were used to assess Qigong’s effects which made data synthesis difficult. Therefore, a simplified Qigong QoL Questionnaire (3Q instrument) has been developed to assess cancer patients’ QoL when they practise Qigong. This study aims to validate this instrument and contribute to the standardisation and simplification of the outcome measures for the studies on Qigong.

A total of 173 patients with cancer practising Qigong in Australia and China will be recruited to evaluate QoL using the 3Q instrument and Functional Assessment of Cancer Therapy–General (FACT-G) questionnaire. SPSS Statistics V.29 software will be used for data analyses. Exploratory factor analysis will be conducted to identify the factor structures of the 3Q instrument. The internal consistency of the 3Q instrument will be evaluated by Cronbach’s alpha. Test–retest reliabilities will be confirmed by intraclass correlations. Content validity will be assessed by the Spearman’s correlation coefficient. Construct validity will be established through confirmatory factor analysis. Criterion validity will be assessed against FACT-G, and Spearman’s correlation coefficient will be adopted to calculate their correlations.

This study has been approved by the RMIT University Human Research Ethics Committee (HREC26229). The findings from the present study will be submitted to peer-reviewed journals for publication and/or presented at conferences.

The optimal method for conducting spontaneous breathing trials (SBTs) remains a subject of ongoing debate. High-flow oxygen via endotracheal tube (HFOT) has emerged as a novel alternative for SBTs. However, studies investigating the associated physiological changes are lacking. Compared to high-flow nasal cannula (HFNC), HFOT has demonstrated diminished physiological effects, likely due to the bypassing of the upper airway, which may limit its widespread adoption as an SBT strategy. Two HFOT interfaces with different expiratory port diameters will be evaluated. It is hypothesised that the narrower interface would generate higher airway pressure and mitigate weakening physiological effects compared to the HFNC. This study aims to compare the physiological effects of two HFOTs compared to T-piece during SBTs.

This is a single-centre, prospective, physiological randomised crossover study in adult patients receiving mechanical ventilation for more than 24 hours who are deemed ready for SBT. After enrolment, each patient will be disconnected from the ventilator and undergo five SBT phases in random order: T-piece at 6 L/min, HFOT via interface with an expiratory port diameter of 9.8 mm at 40 L/min and 60 L/min and HFOT via interface with an expiratory port diameter of 6.9 mm at 40 L/min and 60 L/min. To reduce carryover effects, each phase will be separated by a 10-min washout period during which baseline mechanical ventilation is resumed. Key physiological parameters will be assessed in each study phase, including airway pressure, changes in end-expiratory lung volume, vital signs, oxygenation levels and inspiratory effort. Postextubation inspiratory effort will also be measured. Finally, 20 patients with the complete five SBT phases and postextubation datasets will be analysed

The study protocol has been approved by the Institutional Ethics Committee and Review Board of Beijing Shijitan Hospital, Capital Medical University (IIT2024-157-002). The data generated in the present study will be available from the corresponding author on reasonable request. The results of the trial will be submitted to international peer-reviewed journals.

NCT06816706.

Proximal gastrectomy (PG) has emerged as the preferred surgical approach for adenocarcinoma of the upper 1/3 stomach and selected cases of oesophagogastric junction adenocarcinoma. We developed a novel oesophagogastric anastomosis technique with an antireflux mechanism (Hao’s Esophagogastrostomy by Fissure Technique). It may have a superior effect on patient weight maintenance compared with the double-tract reconstruction. We intend to conduct a prospective, multicentre, randomised controlled clinical trial to validate this hypothesis.

The primary objective evaluates body weight loss at 12 months postoperatively. Secondary objectives assess surgical safety through comprehensive analysis of complication rates and nutritional parameters, including serial haematological evaluations during follow-up. The study will enrol 52 participants across multiple centres with planned 3-year longitudinal monitoring to evaluate both immediate postoperative outcomes and intermediate-term clinical impacts.

This study was approved by the hospital institutional review board of Huashan Hospital, Fudan University (2024-1173) and is being conducted in accordance with the Declaration of Helsinki and the Good Clinical Practice guidelines. On completion of the study, the results will be published in a peer-reviewed journal.

NCT06679244.

Temporomandibular disorders (TMDs) are a group of conditions affecting the temporomandibular joint (TMJ), masticatory muscles and associated structures, often leading to pain, dysfunction and a significant impact on quality of life. Epidemiological studies have estimated that up to 75% of the population in the USA exhibits at least one sign of TMD. Although conservative treatments, such as acupuncture and occlusal splints, have been recommended, evidence for their effectiveness remains inconclusive, and the combined effects of these interventions are not well understood.

This study aims to evaluate the efficacy of an intraoral balance appliance (IBA) combined with standard Korean medicine care, compared to Korean medicine care alone, in patients with chronic, painful TMD with myalgia.

A single-centre, two-arm, parallel, practitioner-blinded and evaluator-blinded, randomised controlled trial with a 1:1 allocation ratio will be designed to test the interventions. 76 patients with TMD with myalgia will be recruited and randomised. The interventions will include manual acupuncture and physical therapy for both groups, with the addition of IBA in the treatment group for 3 weeks. The primary outcomes of the study will be the Numeric Rating Scale (NRS) for pain and discomfort at the final visit at week 4. Secondary outcomes will include overall functional assessment of the TMJ using several scales, as well as evaluations of quality of life, patient satisfaction and AEs.

The recruitment started on 18 July 2024, and 37 patients were included as of 8 July 2025.

Ethical approval is obtained from the Kyung Hee University Korean Medicine Hospital Institutional Review Board (IRB number: KOMCIRB 2023-06-001). The result from this study will be actively disseminated through manuscript publications and conference presentations.

The protocol was registered with the Clinical Research Information Service (CRiS), Republic of Korea, on 30 October 2023, CRiS number KCT0008906 prior to the initiation of the study, and was revised on 7 July 2025 (https://cris.nih.go.kr/cris/search/detailSearch.do?seq=30270&search_page=M&search_lang=&class_yn=).