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Financial protection and equity in the healthcare financing system in Iran: a cross-sectional study among slum dwellers with type 2 diabetes

Por: Ghammari · F. · Heidari · K. · Jalilian · H.
Objectives

This study was conducted to assess financial protection and equity in the healthcare financing system among slum dwellers with type 2 diabetes (T2D) in Iran in 2022.

Design

Cross-sectional study.

Setting

Primary care centres in Iran were selected from slums.

Participants

Our study included 400 participants with T2D using a systematic random sampling method. Patients were included if they lived in slums for at least five consecutive years, were over 18 years old and did not have intellectual disabilities.

Primary and secondary measures

A self-report questionnaire was used to assess cost-coping strategies vis-à-vis T2D expenditures and factors influencing them, as well as forgone care among slum dwellers.

Results

Of the 400 patients who participated, 53.8% were female. Among the participants, 27.8% were illiterate, but 30.3% could read and write. 75.8% had income below 40 million Rial. There was an association between age, education, income, basic insurance, supplemental insurance and cost-coping strategies (p

Conclusions

As a result of insufficient use of insurance, cost-coping strategies used by slum dwellers vis-à-vis T2D expenditures do not protect them from financial risks. Expanding universal health coverage and providing supplemental insurance for those with T2D living in slums are recommended. Iran Health Insurance should adequately cover the costs of T2D care for slum dwellers so that they do not need to use alternative strategies.

Characteristics and treatment for severe postpartum haemorrhage in different midwifery hospitals in one district of Beijing in China: an institution-based, retrospective cohort study

Por: Yang · Y. · Shao · Y. · Chen · H. · Guo · X. · Liang · Y. · Wang · Y. · Zhao · Y.
Objective

To identify the characteristics and treatment approaches for patients with severe postpartum haemorrhage (SPPH) in various midwifery institutions in one district in Beijing, especially those without identifiable antenatal PPH high-risk factors, to improve regional SPPH rescue capacity.

Design

Retrospective cohort study.

Setting

This study was conducted at 9 tertiary-level hospitals and 10 secondary-level hospitals in Haidian district of Beijing from January 2019 to December 2022.

Participants

The major inclusion criterion was SPPH with blood loss ≥1500 mL or needing a packed blood product transfusion ≥1000 mL within 24 hours after birth. A total of 324 mothers with SPPH were reported to the Regional Obstetric Quality Control Office from 19 midwifery hospitals.

Outcome measures

The pregnancy characteristics collected included age at delivery, gestational weeks at delivery, height, parity, delivery mode, antenatal PPH high-risk factors, aetiology of PPH, bleeding amount, PPH complications, transfusion volume and PPH management. SPPH characteristics were compared between two levels of midwifery hospitals and their association with antenatal PPH high-risk factors was determined.

Results

SPPH was observed in 324 mothers out of 106 697 mothers in the 4 years. There were 74.4% and 23.9% cases of SPPH without detectable antenatal PPH high-risk factors in secondary and tertiary midwifery hospitals, respectively. Primary uterine atony was the leading cause of SPPH in secondary midwifery hospitals, whereas placental-associated disorders were the leading causes in tertiary institutions. Rates of red blood cell transfusion over 10 units, unscheduled returns to the operating room and adverse PPH complications were higher in patients without antenatal PPH high-risk factors. Secondary hospitals had significantly higher rates of trauma compared with tertiary institutions.

Conclusion

Examining SPPH cases at various institutional levels offers a more comprehensive view of regional SPPH management and enhances targeted training in this area.

Supplements for cognitive ability in patients with mild cognitive impairment or Alzheimers disease: a protocol for systematic review and network meta-analysis of randomised controlled trials

Por: Zhang · X.-Y. · Li · Y.-Q. · Yin · Z.-H. · Bao · Q.-N. · Xia · M.-Z. · Chen · Z.-H. · Zhong · W.-Q. · Wu · K.-X. · Yao · J. · Liang · F.-R.
Introduction

Considering the increasing incidence of Alzheimer’s disease (AD) and mild cognitive impairment (MCI) worldwide, there is an urgent need to identify efficacious, safe and convenient treatments. Numerous investigations have been conducted on the use of supplements in this domain, with oral supplementation emerging as a viable therapeutic approach for AD or MCI. Nevertheless, given the multitude of available supplements, it becomes imperative to identify the optimal treatment regimen.

Methods and analysis

Eight academic databases and three clinical trial registries will be searched from their inception to 1 June 2023. To identify randomised controlled trials investigating the effects of supplements on patients with AD or MCI, two independent reviewers (X-YZ and Y-QL) will extract relevant information from eligible articles, while the risk of bias in the included studies will be assessed using the Rob 2.0 tool developed by the Cochrane Collaboration. The primary outcome of interest is the overall cognitive function. Pair-wise meta-analysis will be conducted using RevMan V.5.3, while network meta-analysis will be carried out using Stata 17.0 and ADDIS 1.16.8. Heterogeneity test, data synthesis and subgroup analysis will be performed if necessary. The GRADE system will be employed to assess the quality of evidence. This study is scheduled to commence on 1 June 2023 and conclude on 1 October 2023.

Ethics and dissemination

Ethics approval is not required for systematic review and network meta-analysis. The results will be submitted to a peer-reviewed journal or at a conference.

Trial registration number

PROSPERO (CRD42023414700).

Artificial intelligence tools for optimising recruitment and retention in clinical trials: a scoping review protocol

Por: Lu · X. · Chen · M. · Lu · Z. · Shi · X. · Liang · L.
Introduction

In recent years, the influence of artificial intelligence technology on clinical trials has been steadily increasing. It has brought about significant improvements in the efficiency and cost reduction of clinical trials. The objective of this scoping review is to systematically map, describe and summarise the current utilisation of artificial intelligence in recruitment and retention process of clinical trials that has been reported in research. Additionally, the review aims to identify benefits and drawbacks, as well as barriers and facilitators associated with the application of artificial intelligence in optimising recruitment and retention in clinical trials. The findings of this review will provide insights and recommendations for future development of artificial intelligence in the context of clinical trials.

Methods and analysis

The review of relevant literature will follow the methodological framework for scoping studies provided by the Joanna Briggs Institute. A comprehensive electronic search will be conducted using the search strategy developed by the authors. Leading medical and computer science databases such as PubMed, Embase, Scopus, IEEE Xplore and Web of Science Core Collection will be searched. The search will encompass analytical observational studies, descriptive observational studies, experimental and quasi-experimental studies published in all languages, without any time limitations, which use artificial intelligence tools in the recruitment and retention process of clinical trials. The review team will screen the identified studies and import them into a dedicated electronic library specifically created for this review. Data extraction will be performed using a data charting table.

Ethics and dissemination

Secondary data will be attained in this scoping review; therefore, no ethical approval is required. The results of the final review will be published in a peer-reviewed journal. It is expected that results will inform future artificial intelligence and clinical trials research.

IMPROVE study protocol, investigating post-stroke local muscle vibrations to promote cerebral plasticity and functional recovery: a single-blind randomised controlled trial

Por: Julliand · S. · Papaxanthis · C. · Delphin · C. · Mock · A. · Raumel · M.-A. · Gueugnon · M. · Ornetti · P. · Laroche · D.
Introduction

Spasticity is a frequent disabling consequence following a stroke. Local muscle vibrations (LMVs) have been proposed as a treatment to address this problem. However, little is known about their clinical and neurophysiological impacts when used repeatedly during the subacute phase post-stroke. This project aims to evaluate the effects of a 6-week LMV protocol on the paretic limb on spasticity development in a post-stroke subacute population.

Methods and analysis

This is an interventional, controlled, randomised, single-blind (patient) trial. 100 participants over 18 years old will be recruited, within 6 weeks following a first stroke with hemiparesis or hemiplegia. All participants will receive a conventional rehabilitation programme, plus 18 sessions of LMV (ie, continuously for 30 min) on relaxed wrist and elbow flexors: either (1) at 80 Hz for the interventional group or (2) at 40 Hz plus a foam band between the skin and the device for the control group.

Participants will be evaluated at baseline, at 3 weeks and 6 weeks, and at 6 months after the end of the intervention. Spasticity will be measured by the modified Ashworth scale and with an isokinetic dynamometer. Sensorimotor function will be assessed with the Fugl-Meyer assessment of the upper extremity. Corticospinal and spinal excitabilities will be measured each time.

Ethics and dissemination

This study was recorded in a clinical trial and obtained approval from the institutional review board (Comité de protection des personnes Ile de France IV, 2021-A03219-32). All participants will be required to provide informed consent. The results of this trial will be published in peer-reviewed journals to disseminate information to clinicians and impact their practice for an improved patient’s care.

Trial registration number

Clinical Trial: NCT05315726

Dataset

EUDRAct

Deep learning model to predict lupus nephritis renal flare based on dynamic multivariable time-series data

Por: Huang · S. · Chen · Y. · Song · Y. · Wu · K. · Chen · T. · Zhang · Y. · Jia · W. · Zhang · H.-T. · Liang · D.-D. · Yang · J. · Zeng · C.-H. · Li · X. · Liu · Z.-H.
Objectives

To develop an interpretable deep learning model of lupus nephritis (LN) relapse prediction based on dynamic multivariable time-series data.

Design

A single-centre, retrospective cohort study in China.

Setting

A Chinese central tertiary hospital.

Participants

The cohort study consisted of 1694 LN patients who had been registered in the Nanjing Glomerulonephritis Registry at the National Clinical Research Center of Kidney Diseases, Jinling Hospital from January 1985 to December 2010.

Methods

We developed a deep learning algorithm to predict LN relapse that consists of 59 features, including demographic, clinical, immunological, pathological and therapeutic characteristics that were collected for baseline analysis. A total of 32 227 data points were collected by the sliding window method and randomly divided into training (80%), validation (10%) and testing sets (10%). We developed a deep learning algorithm-based interpretable multivariable long short-term memory model for LN relapse risk prediction considering censored time-series data based on a cohort of 1694 LN patients. A mixture attention mechanism was deployed to capture variable interactions at different time points for estimating the temporal importance of the variables. Model performance was assessed according to C-index (concordance index).

Results

The median follow-up time since remission was 4.1 (IQR, 1.7–6.7) years. The interpretable deep learning model based on dynamic multivariable time-series data achieved the best performance, with a C-index of 0.897, among models using only variables at the point of remission or time-variant variables. The importance of urinary protein, serum albumin and serum C3 showed time dependency in the model, that is, their contributions to the risk prediction increased over time.

Conclusions

Deep learning algorithms can effectively learn through time-series data to develop a predictive model for LN relapse. The model provides accurate predictions of LN relapse for different renal disease stages, which could be used in clinical practice to guide physicians on the management of LN patients.

Association between asymptomatic hyperuricemia and risk of arthritis, findings from a US National Survey 2007-2018

Por: Liang · Z. · WU · D. · Zhang · H. · Gu · J.
Background

Arthritis is thought to be closely related to serum uric acid. The study aims to assess the association between asymptomatic hyperuricemia (AH) and arthritis.

Methods

A multistage, stratified cluster was used to conduct a cross-sectional study of adult US civilians aged≥20 years from the 2007–2018 National Health and Nutrition Examination Survey. Participants with hyperuricemia and without hyperuricemia prior to gout were included. A questionnaire was used to determine whether participants had arthritis and the type of arthritis. Logistic regression was used to investigate the association between hyperuricemia and arthritis.

Result

During the past 12 years, the percentage of participants with arthritis changed from 25.95% (22.53%–29.36%) to 25.53% (21.62%–29.44%). The prevalence of osteoarthritis (OA) increased from 8.70% (95% CI: 6.56% to 10.85%) to 12.44% (95% CI: 9.32% to 15.55%), the prevalence of AH changed from 16.35% (95% CI: 14.01% to 18.40%) to 16.39% (95% CI: 13.47% to 19.30%). Participants with AH were associated with onset of arthritis (OR=1.34, 95% CI: 1.07 to 1.69), but the association was muted after adjusting demographic and socioeconomic factors. For participants aged 40–49 years, AH is associated with incident arthritis (OR=1.96, 95% CI: 1.23 to 2.99) and the relationship remained after adjusting for education level, income to poverty ratio, body mass index, diabetes, hypertension and smoking (OR=2.00, 95% CI: 1.94 to 3.36). Compared with male, female participants with AH are more likely to develop arthritis, especially in OA (OR=1.35, 95% CI: 1.14 to 1.60).

Conclusion

Our data identified AH as the risk factor for incident arthritis, especially for OA, which might be exaggerated in aged population and female population.

Seroprevalence of Japanese encephalitis virus-specific antibodies in Australia following novel epidemic spread: protocol for a national cross-sectional study

Por: Winkler · N. E. · Koirala · A. · Kaur · G. · Prasad · S. · Hirani · R. · Baker · J. · Hoad · V. · Gosbell · I. B. · Irving · D. O. · Hueston · L. · O'Sullivan · M. V. · Kok · J. · Dwyer · D. E. · Macartney · K. · on behalf of the Australian Japanese Encephalitis Virus Serosurvey Gr
Introduction

Japanese encephalitis virus (JEV) is a mosquito-borne flavivirus that causes encephalitis and other morbidity in Southeast Asia. Since February 2022, geographically dispersed JEV human, animal and vector detections occurred on the Australian mainland for the first time. This study will determine the prevalence of JEV-specific antibodies in human blood with a focus on populations at high risk of JEV exposure and determine risk factors associated with JEV seropositivity by location, age, occupation and other factors.

Method

Samples are collected using two approaches: from routine blood donors (4153 samples), and active collections targeting high-risk populations (convenience sampling). Consent-based sampling for the latter includes a participant questionnaire on demographic, vaccination and exposure data. Samples are tested for JEV-specific total antibody using a defined epitope-blocking ELISA, and total antibody to Australian endemic flaviviruses Murray Valley encephalitis and Kunjin viruses.

Analysis

Two analytic approaches will occur: descriptive estimates of seroprevalence and multivariable logistic regression using Bayesian hierarchical models. Descriptive analyses will include unadjusted analysis of raw data with exclusions for JEV-endemic country of birth, travel to JEV-endemic countries, prior JEV-vaccination, and sex-standardised and age-standardised analyses. Multivariable logistic regression will determine which risk factors are associated with JEV seropositivity likely due to recent transmission within Australia and the relative contribution of each factor when accounting for effects within the model.

Ethics

National Mutual Acceptance ethical approval was obtained from the Sydney Children’s Hospitals Network Human Research Ethics Committee (HREC). Local approvals were sought in each jurisdiction. Ethical approval was also obtained from the Australian Red Cross Lifeblood HREC.

Dissemination

Findings will be communicated to participants and their communities, and human and animal health stakeholders and policy-makers iteratively and after final analyses. Understanding human infection rates will inform procurement and targeted allocation of limited JEV vaccine, and public health strategies and communication campaigns, to at-risk populations.

Snoring Survivors: the impact of obstructive sleep apnoea and continuous positive airway pressure use on in-hospital mortality, length of stay and costs among patients hospitalised with acute cardiovascular disease - A retrospective analysis of 2016-2019

Por: Ogbu · I. · Hakobyan · B. · Sossou · C. · Levisman · J. · Obiagwu · C. · Danielian · A.
Background

The routine administration of supplemental oxygen to non-hypoxic patients with acute myocardial infarction (AMI) has been abandoned for lack of mortality benefit. However, the benefits of continuous positive airway pressure (CPAP) use in patients hospitalised with acute cardiovascular disease and concomitant obstructive sleep apnoea (OSA) remain to be elucidated.

Methods

In this retrospective case–control analysis, using 10th International Classification of Diseases, Clinical Modification (ICD-10) codes, we searched the 2016–2019 Nationwide Inpatient Sample for patients diagnosed with unstable angina (UA), AMI, acute decompensated heart failure (ADHF) and atrial fibrillation with rapid ventricular response (AFRVR), who also carried a diagnosis of OSA. We identified in-hospital CPAP use with ICD-10-Procedure Coding System codes. In-hospital death, length of stay (LOS) and hospital charges were compared between patients with and without OSA, and between OSA patients with and without CPAP use.

Results

Our sample included 2 959 991 patients, of which 1.5% were diagnosed with UA, 30.3% with AMI, 37.5% with ADHF and 45.8% with AFRVR. OSA was present in 12.3%. Patients with OSA were more likely to be younger, male, smokers, obese and have chronic obstructive pulmonary disease, renal failure and heart failure (p

Conclusion

Our study showed that patients with recognised OSA hospitalised for AMI, ADHF and AFRVR had significantly lower mortality regardless of CPAP use, while CPAP treatment among these patients was associated with significantly higher in-hospital mortality and resource utilisation. The routine use of CPAP during acute cardiovascular encounters could neutralise the impact of chronic intermittent ischaemic preconditioning.

Priming transcranial direct current stimulation for improving hemiparetic upper limb in patients with subacute stroke: study protocol for a randomised controlled trial

Por: Zhu · F. · Xu · X. · Jin · M. · Chen · J. · Feng · X. · Wang · J. · Yu · D. · Wang · R. · Lian · Y. · Huai · B. · Lou · X. · Shi · X. · He · T. · Lu · J. · Zhang · J. J. · Bai · Z.
Introduction

Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that modulates brain states by applying a weak electrical current to the brain cortex. Several studies have shown that anodal stimulation of the ipsilesional primary motor cortex (M1) may promote motor recovery of the affected upper limb in patients with stroke; however, a high-level clinical recommendation cannot be drawn in view of inconsistent findings. A priming brain stimulation protocol has been proposed to induce stable modulatory effects, in which an inhibitory stimulation is applied prior to excitatory stimulation to a brain area. Our recent work showed that priming theta burst magnetic stimulation demonstrated superior effects in improving upper limb motor function and neurophysiological outcomes. However, it remains unknown whether pairing a session of cathodal tDCS with a session of anodal tDCS will also capitalise on its therapeutic effects.

Methods and analysis

This will be a two-arm double-blind randomised controlled trial involving 134 patients 1–6 months after stroke onset. Eligible participants will be randomly allocated to receive 10 sessions of priming tDCS+robotic training, or 10 sessions of non-priming tDCS+robotic training for 2 weeks. The primary outcome is the Fugl-Meyer Assessment-upper extremity, and the secondary outcomes are the Wolf Motor Function Test and Modified Barthel Index. The motor-evoked potentials, regional oxyhaemoglobin level and resting-state functional connectivity between the bilateral M1 will be acquired and analysed to investigate the effects of priming tDCS on neuroplasticity.

Ethics and dissemination

The study has been approved by the Research Ethics Committee of the Shanghai Yangzhi Rehabilitation Center (reference number: Yangzhi2023-022) and will be conducted in accordance with the Declaration of Helsinki of 1964, as revised in 2013.

Trial registration number

ChiCTR2300074681.

Study of postoperative laryngopharyngeal discomfort: protocol for a single-centre cohort study

Por: Wang · L. F. · Zheng · M.-T. · Liang · N. · Ma · H. N. · Li · W. X.
Introduction

Postoperative laryngopharyngeal discomfort after extubation can lead to severe throat pain, dysphagia, or postoperative tongue oedema. Possible mechanisms include increased oral pressure, obstruction of venous and lymphatic return in the neck, and increased capillary hydrostatic pressure, which leads to oedema of the tongue and upper airway. However, real-time monitoring indicators of anaesthesia are lacking. Therefore, we designed this study to accurately measure the contact force of the tracheal tube on the tongue in different surgical positions during general anaesthesia.

Methods and analysis

This prospective single-centre observational study will enrol 54 patients undergoing elective surgery under general anaesthesia for>2 hours with endotracheal tube application from 1 July 2023 to 30 June 2024. Patients will be divided into the supine (Supine group) and high-risk (Flexion group) groups. Dynamic changes in the contact force between the tracheal tube and tongue will be measured using T-Scan technology. All patients will be followed up for 7 days postoperatively. The primary endpoint is postoperative laryngopharyngeal discomfort. Secondary outcomes include the time to the first successful recovery of oral intake of fluids and solid food, and airway-related events.

Ethics and dissemination

Ethical approval was obtained from the Ethics Committee of Clinical Research of China-Japan Friendship Hospital (2023-KY-219, approved on 14 September 2023). Informed consent will be obtained during anaesthesia evaluation. This study aims to explore the characteristics of the contact force on the tongue caused by endotracheal intubation in different surgical positions and to provide a better understanding of the risk factors and prevention of postoperative laryngopharyngeal discomfort. The findings of this study will be presented at our hospital, reported on ClinicalTrials.gov, and published in peer-reviewed journals.

Trial registration number

NCT05987293.

Impact of COVID-19 on diabetes care: mixed methods study in an Indigenous area of Guatemala

Por: Guarchaj · M. · Tschida · S. · Milian Chew · J. P. · Aguilar · A. · Flood · D. · Fort · M. P. · Morales · L. C. · Mendoza Montano · C. · Rodriguez Serrano · S. N. · Rohloff · P.
Introduction

SARS-CoV-2 has impacted globally the care of chronic diseases. However, direct evidence from certain vulnerable communities, such as Indigenous communities in Latin America, is missing. We use observational data from a health district that primarily serves people of Maya K’iche’ ethnicity to examine the care of type 2 diabetes in Guatemala during the pandemic.

Methods

We used a parallel convergent mixed methods design. Quantitative data (n=142 individuals with diabetes) included glycated haemoglobin (HbA1c), blood pressure, body mass index and questionnaires on diabetes knowledge, self-care and diabetes distress. Quantitative data was collected at two points, at baseline and after COVID restrictions were lifted. For quantitative outcomes, we constructed multilevel mixed effects models with multiple imputation for missing data. Qualitative data included interviews with providers, supervisors and individuals living with diabetes (n=20). We conducted thematic framework analysis using an inductive approach.

Results

Quantitative data was collected between June 2019 and February 2021, with a median of 487 days between data collection points. HbA1c worsened +0.54% (95% CI, 0.14 to 0.94) and knowledge about diabetes decreased –3.54 points (95% CI, –4.56 to –2.51). Qualitatively, the most important impact of the pandemic was interruption of the regular timing of home visits and peer group meetings which were the standard of care.

Conclusions

The deterioration of diabetes care was primarily attributed to the loss of regular contact with healthcare workers. The results emphasize the vulnerability of rural and Indigenous populations in Latin America to the suspension of chronic disease care.

Effects of armed conflict on maternal and infant health: a mixed-methods study of Armenia and the 2020 Nagorno-Karabakh war

Por: Rostomian · L. · Chiloyan · A. · Hentschel · E. · Messerlian · C.
Introduction

Armed conflict worldwide and across history has harmed the health of populations directly and indirectly, including generations beyond those immediately exposed to violence. The 2020 war between Armenia and Azerbaijan over Nagorno-Karabakh, inhabited by an ethnically Armenian population, provides an example of how conflict harmed health during COVID-19. We hypothesised that crises exposure would correspond to decreased healthcare utilisation rates and worse health outcomes for the maternal and infant population in Armenia, compounded during the pandemic.

Methods

Following a mixed-methods approach, we used ecological data from 1980 to 2020 to evaluate health trends in conflict, measured as battle-related deaths (BRDs), COVID-19 cases, and maternal and infant health indicators during periods of conflict and peace in Armenia. We also interviewed 10 key informants about unmet needs, maternal health-seeking behaviours and priorities during the war, collecting recommendations to mitigate the effects of future crisis on maternal and infant health. We followed a deductive coding approach to analyse transcripts and harvest themes.

Results

BRDs totalled more in the 2020 war compared with the previous Nagorno-Karabakh conflicts. Periods of active conflict between 1988–2020 were associated with increased rates of sick newborn mortality, neonatal mortality and pre-eclampsia or eclampsia. Weekly average COVID-19 cases increased sevenfold during the 2020 Nagorno-Karabakh war. Key informants expressed concerns about the effects of stress and grief on maternal health and pregnancy outcomes and recommended investing in healthcare system reform. Participants also stressed the synergistic effects of the war and COVID-19, noting healthcare capacity concerns and the importance of a strong primary care system.

Conclusions

Maternal and infant health measures showed adverse trends during the 2020 Nagorno-Karabakh war, potentially amplified by the concurrent COVID-19 pandemic. To mitigate effects of future crises on population health in Armenia, informants recommended investments in healthcare system reform focused on primary care and health promotion.

Correlational study of ergonomic knowledge and level of MSK discomfort during online classes of 1st-4th year UST-CRS physical therapy students: a cross-sectional study

Por: Siy · W. · Sicat · Z. M. · Bautista · T. M. · Formalejo · A. · Gatdula · M. E. · Ico · A. A. · Julian · C. J. · Pabion · M. C. · Reyes · J. L. · Santander · N. M.
Introduction

The abrupt transition of the mode of learning due to the COVID-19 pandemic resulted in an increase in complaints of musculoskeletal (MSK) discomfort among students in Higher Education Institutions (HEI). Inadequate physical space and equipment are one major cause of these complaints. Among HEIs, physical therapy (PT) students have sufficient background in managing MSK discomforts. However, this does not prevent them from experiencing pain and discomfort during online classes. This analytical cross-sectional study aims to determine the correlation between ergonomic knowledge and MSK discomfort among first-year to fourth-year PT students.

Methods and analysis

The study will use two questionnaires, the Ergonomic Knowledge Questionnaire, and the Cornell Musculoskeletal Discomfort Questionnaire, that determine the level of ergonomic knowledge and MSK discomfort, respectively. This will be disseminated to 144 students through google forms. Results will then be analysed using Pearson Correlation Test. The study anticipates a correlation between the level of ergonomic knowledge and MSK discomfort among the participants.

Ethics and dissemination

The study has been approved by the University of Santo Tomas-College of Rehabilitation Sciences Ethics Review Committee. The participants will receive the results prior to publication in a peer-reviewed scientific journal.

Trial registration number

Philippine Health Research Registry with registry ID PHRR230216-005443.

Initiation of China Alliance of Research in High Myopia (CHARM): protocol for an AI-based multimodal high myopia research biobank

Por: He · H.-L. · Liu · Y.-X. · Song · H. · Xu · T.-Z. · Wong · T.-Y. · Jin · Z.-B. · China Alliance of Research in High Myopia (CHARM)
Introduction

High myopia is a pressing public health concern due to its increasing prevalence, younger trend and the high risk of blindness, particularly in East Asian countries, including China. The China Alliance of Research in High Myopia (CHARM) is a newly established consortium that includes more than 100 hospitals and institutions participating across the nation, aiming to promote collaboration and data sharing in the field of high myopia screening, classification, diagnosis and therapeutic development.

Methods and analysis

The CHARM project is an ongoing study, and its initiation is distinguished by its unprecedented scale, encompassing plans to involve over 100 000 Chinese patients. This initiative stands out not only for its extensive scope but also for its innovative application of artificial intelligence (AI) to assist in diagnosis and treatment decisions. The CHARM project has been carried out using a ‘three-step’ strategy. The first step involves the collection of basic information, refraction, axial length and fundus photographs from participants with high myopia. In the second step, we will collect multimodal imaging data to expand the scope of clinical information, for example, optical coherence tomography and ultra-widefield fundus images. In the final step, genetic testing will be conducted by incorporating patient family histories and blood samples. The majority of data collected by CHARM is in the form of images that will be used to detect and predict the progression of high myopia through the identification and quantification of biomarkers such as fundus tessellation, optic nerve head and vascular parameters.

Ethics and dissemination

The study has received approval from the Ethics Committee of Beijing Tongren Hospital (TREC2022-KY045). The establishment of CHARM represents an opportunity to create a collaborative platform for myopia experts and facilitate the dissemination of research findings to the global community through peer-reviewed publications and conference presentations. These insights can inform clinical decision-making and contribute to the development of new treatment modalities that may benefit patients worldwide.

Trial registration number

ChiCTR2300071219.

Evaluation of functional vision and eye-related quality of life in children with congenital ectopia lentis: a prospective cross-sectional study

Por: Liang · X. · Zheng · D. · Young · C. A. · Ma · Y. · Ling · L. · Zou · M. · Liu · S. · Zhang · X. · Jin · G.
Objectives

This study aims to evaluate the effect of congenital ectopia lentis (CEL) on functional vision and eye-related quality of life (ER-QOL) in children and their families using the Paediatric Eye Questionnaire (PedEyeQ).

Design

A questionnaire survey administered via in-person interviews of patients with CEL and their parents.

Participants

51 children with CEL and 53 visually normal controls accompanied by 1 parent completed the survey questionnaires for the study from March 2022 to September 2022.

Outcome measures

PedEyeQ domain scores. Functional vision and ER-QOL of children and their families were evaluated by calculating and comparing the Rasch domain scores of the PedEyeQ.

Results

PedEyeQ domain scores were significantly worse with CEL compared with controls (p

Conclusions

In this study, children with CEL had reduced functional vision and ER-QOL compared with controls. Parents of children with CEL also experience reduced quality of life.

Evaluation of antimicrobial photodynamic therapy and minimal intervention associated with deproteinisation in permanent teeth with molar incisor hypomineralisation: study protocol for a clinical, controlled, blinded trial

Por: Mandetta · A. R. H. · Bortoletto · C. C. · Sobral · A. P. T. · Goncalves · M. L. L. · Motta · L. J. · Horliana · A. C. R. T. · Ferrari · R. A. M. · Prates · R. A. · Deana · A. M. · Cordeiro · R. d. C. L. · Pinto · L. A. M. d. S. · Fernandes · K. P. S. · Bussadori · S. K.
Introduction

Molar incisor hypomineralisation (MIH) is a qualitative defect of enamel development that occurs in the mineralisation phase. MIH affects one or more permanent molars and, occasionally, permanent incisors. The aim of the proposed study is to evaluate the clinical effect of antimicrobial photodynamic therapy (aPDT) on permanent teeth with MIH through decontamination and sensitivity control.

Methods and analysis

Patients from 8 to 12 years of age with permanent molars will be randomly allocated to three groups. Group 1: selective chemical–mechanical removal of carious dentinal tissue around the walls of the cavity with Papacárie Duo and a curette followed by the application of aPDT and deproteinisation with Papacárie Duo; group 2: selective removal of carious dentinal tissue around the walls of the cavity with a curette, followed by the application of aPDT and deproteinisation with a 5% sodium hypochlorite solution; group 3: selective removal of carious dentinal tissue using a curette. The selected teeth must have a carious lesion in the dentin and posteruptive enamel breakdown on one or more surfaces with an indication for clinical restorative treatment. The teeth will subsequently be restored using a mixed technique with resin-modified glass ionomer cement and bulk-fill composite resin. The data will be submitted to descriptive statistical analysis. Associations with age and sex will be tested using either the 2 test or Fisher’s exact test. Pearson’s correlation coefficients will be calculated to determine the strength of correlations between variables. Comparisons of the microbiological results (colony-forming units) will be performed using analysis of variance and the Kruskal-Wallis test. Kaplan-Meier survival analysis will be performed to assess the performance of the restorations.

Ethics and dissemination

This protocol has been approved by the Human Research Ethics Committee of Nove de Julho University (certificate number: 61027522.0.0000.5511/approval date: 23 August 2022). The findings will be published in a peer-reviewed journal.

Trial registration number

NCT05443035.

Association of epicardial and visceral adipose tissue in relation to subclinical cardiac dysfunction in Chinese: Danyang study

Por: Yao · F. · Zeng · L. · Hua · M. · Zhang · S. · Liang · J. · Gao · Y. · Chen · C. · Zhao · X. · He · A. · Liu · M.
Objective

Our study aims to examine the associations of visceral adipose tissue (VAT) and epicardial adipose tissue (EAT) with subclinical cardiac dysfunction in a Chinese population.

Design

Cross-sectional.

Background

EAT and VAT are the most important ectopic fat pools which were previously shown to be associated with subclinical cardiac dysfunction. However, few studies simultaneously measured both EAT thickness and VAT area, and explored their associations with cardiac dysfunction. Our study aims to examine the associations of VAT and EAT with subclinical cardiac dysfunction in a Chinese population.

Methods

The study subjects were recruited from Danyang County from 2018 to 2019. Using Philips CX50, we recorded EAT thickness at the end-systole in a long-axis view. The subclinical systolic and diastolic function were assessed by two-dimensional speckle tracking, and transmitral and tissue Doppler imaging, respectively. Using Omron HDS-2000, we measured VAT area by dual bioelectrical impedance analysis.

Results

The 1558 participants (age, 52.3±12.8 years) included 930 (59.7%) women. Compared with women, men had higher VAT area (99.4 vs 70.1 cm2; p

Conclusions

Increased EAT thickness was associated with worse subclinical systolic dysfunction, while greater VAT area was associated with early diastolic dysfunction.

Association between the neutrophil-to-lymphocyte ratio and psoriasis: a cross-sectional study of the National Health and Nutrition Examination Survey 2011-2014

Por: Hong · J. · Lian · N. · Li · M.
Objectives

To investigate the association between the neutrophil-to-lymphocyte ratio (NLR) and psoriasis.

Design

Cross-sectional study.

Setting

National Health and Nutrition Examination Survey 2011–2014.

Participants

A subsample of 8387 individuals aged 18 years and older were screened for inclusion, of whom 238 reported a diagnosis of psoriasis.

Primary and secondary outcome measures

Psoriasis and the severity of psoriasis were defined according to participants’ self-reports. Weighted logistic regression, subgroup and restricted cubic spline (RCS) analyses were conducted to estimate the potential relationship of the NLR with psoriasis.

Results

In the fully adjusted models, the fourth quartile of the NLR was significantly and positively associated with the presence of psoriasis using the first quartile as a reference (OR: 2.22, 95% CI: 1.27 to 3.87, p=0.01). Elevated NLR was associated with an increased odds of having more severe psoriasis for the highest quartile (vs the lowest quartile), with an OR of 2.43 (95% CI: 1.10 to 5.36, p=0.003). The association between the NLR and psoriasis differed across prespecified subgroups by age, sex, race, income and education. A non-linear correlation of the NLR with psoriasis was observed using univariable and multivariable RCS (all p for non-linearity

Conclusions

The NLR was non-linearly and positively correlated with the presence of psoriasis, and our findings suggest a significant association between the NLR and the severity of psoriasis. The potential role and value in the clinical diagnosis and prognostic assessment of the NLR in psoriasis calls for further longitudinal studies.

Postoperative stellate ganglion block to reduce myocardial injury after laparoscopic radical resection for colorectal cancer: protocol for a randomised trial

Por: Hu · Z. · Li · W. · Zhao · G. · Liang · C. · Li · K.
Introduction

Stellate ganglion block (SGB) is usually used in the department of algiatry. But preoperative SGB may reduce adverse cardiovascular events in high-risk patients, although evidence remains sparse. Therefore, we aim to determine whether a single-shot postoperative SGB can reduce the incidence of myocardial injury after non-cardiac surgery (MINS) and improve recovery in patients undergoing laparoscopic radical resection for colorectal cancer.

Methods and analysis

This is an investigator-initiated, single-centre, randomised, two-arm clinical trial enrolling patients aged over 45 years and scheduled for elective laparoscopic radical colorectal surgery with at least one risk factor for MINS. A total of 950 eligible patients will be randomised into a routine or block groups. The primary outcome is the incidence of MINS. The secondary outcomes include the Visual Analogue Scale of pain during rest and movement, the incidence of delirium, quality of recovery (QOR) assessed by QOR-15, and sleep quality assessed by Richards Campbell Sleep Questionnaire. Tertiary outcomes include time to first flatus, gastrointestinal complications such as anastomotic leak or ileus, length of hospital stay, collapse incidence of severe cardiovascular and cerebrovascular complications of myocardial infarction, cardiac arrest, ischaemic or haemorrhagic stroke, and all-cause mortality within 30 days after the operation.

Ethics and dissemination

The protocol was approved by Medical Ethics Committee of the China-Japan Union Hospital, Jilin University (Approval number: 2021081018) prior to recruitment. The study will be performed according to the guidelines of the Declaration of Helsinki. The findings of this study will be published and presented through various scientific forums.

Trial registration number

ChiCTR2200055319.

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