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Patient consent for publication
Not applicable.
PMC10447378
Ethics approval
This study involves human participants and was approved by South Central Oxford REC B (Ref: 118784, Ethics number: 12/SC/0713). Participants gave informed consent to participate in the study before taking part.
PMC10447378
References
PMC10447378
Methods
apnea hypopnea, CRAE, hypertension/hypercholesterolemia, CRVE, SDB
REGRESSION
Patients for SDB assessment were recruited (Main Group, n = 264, age: 58.5 ± 8.9 yrs [mean ± SD]; males: 141) for in-laboratory polysomnography (standard metrics, eg apnea hypopnea index, AHI) and retinal photographs (evening and morning). A more severe SDB sub-group (n = 85) entered a 12-month cardiovascular risk fact...
PMC9831323
Conclusion
cerebro-vascular disease, CRAE, OSA, CRVE, SDB
No major SDB associations with CRAE or CRVE were identified, although the RFM/CPAP intervention reduced evening CRVE for severe OSA patients. Implications for cerebro-vascular disease risk remain uncertain.
PMC9831323
Trial registration
The protocol was registered with the Australian New Zealand Clinical Trials Registry (Trial Id:
PMC9831323
Data Availability
All relevant data are within the article and its
PMC9831323
Introduction
cardiovascular disease, CRAE, stroke, cardio- and cerebro-vascular diseases, OSA, hypertension, CRVE, diabetes
CARDIOVASCULAR DISEASE, OBSTRUCTIVE SLEEP APNEA, STROKE, CORONARY HEART DISEASE, HYPERTENSION, DIABETES
A number of studies have suggested that obstructive sleep apnea (OSA) increases risk for cardio- and cerebro-vascular diseases, including hypertension, coronary heart disease and stroke [There is one microvascular bed that can be readily and non-invasively accessed in clinical settings by using digital photography to p...
PMC9831323
Methods
PMC9831323
Registration
This study was not initially registered as a clinical trial before enrolment of participants because it was originally conceived as an observational study. The authors confirm that all onging and related trials for this intervention are registered. The protocol was registered with the Australian New Zealand Clinical Tr...
PMC9831323
Study participants
Respiratory Disturbance, diabetes
DIABETES
We recruited 335 adults all over the age of 35 years, referred to a sleep clinic at Westmead Hospital between 2Participants were screened for diabetes and 40 were subsequently excluded on the basis of either a history of diabetes or a fasting blood sugar level ≥ 6.9 mmol/L, while 31 other participants either withdrew o...
PMC9831323
Study flow diagram.
respiratory disturbance, SDB
RECRUITMENT, SLEEP DISORDERED BREATHING
Study flow diagram showing movement of participants and data through the recruitment and screening phases, the “Main Group” and “RFM/CPAP sub-group” Cross-Sectional Analyses and the Intervention Study. SDB = sleep disordered breathing; BSL = blood sugar level; PSG = polysomnography; CPAP = continuous positive airway pr...
PMC9831323
Polysomnography
PSG studies were recorded using Compumedics Profusion PSG4 software (Compumedics Limited; Abbotsford, Victoria, Australia) and scored according to standard guidelines [
PMC9831323
Retinal photography
CRVE, CRAE
DILATION
Retinal images were obtained from each eye with a non-mydriatic digital camera (Canon CR2-Plus, Canon, Japan) before (evening-pm) and after (morning-am) sleep, and after pupil dilation (one drop of 1% Tropicamide) in most subjects (n = 239 [pm] and n = 194 [am]). A retinal photograph centred on the optic disc was taken...
PMC9831323
RFM/CPAP intervention (RFM/CPAP sub-group only)
hypertension, hypercholesterolaemia
MINOR, HYPERTENSION, RECRUITMENT, HYPERCHOLESTEROLAEMIA
After recruitment to the intervention study, participants with hypertension or hypercholesterolaemia were prescribed appropriate medication and undertook a 1-month run-in stabilisation period. Participants underwent a second PSG at Westmead Hospital Sleep Laboratory to determine the appropriate CPAP treatment pressure ...
PMC9831323
Data analysis
±, CRVE, CRAE, SDB
REGRESSION
All statistical analyses were performed using SPSS version 24.0 (IBM SPSS Statistics for Windows, Version 24.0. Armonk, NY: IBM Corp.).Main and RFM/CPAP Sub-Group data were expressed as mean (± standard deviation) or median (interquartile range) for continuous variables, and frequency and percentage for categorical var...
PMC9831323
Results
PMC9831323
Cross-sectional study–main group
CRVE, CRAE, SDB
This section describes results for the primary study analyses which focused on determining cross-sectional associations for non-SDB (Base Models) and SDB severity metrics (SDB Variable Models) with measured evening CRAE, CRVE, and overnight change in CRAE and CRVE, in Main Group participants (n = 264).
PMC9831323
Main group demographics and sleep disordered breathing status.
CRAE, Respiratory Disturbance, Apnea-Hypopnea, Desaturation, SDB
Demographics and SDB status of the Main Group at baseline, presented as mean ± SD, median (IQR) frequency, or n (%), where appropriate, plus range.SD = Standard deviation; IQ range = 25–75 interquartile range; BMI = Body Mass Index; WHR = waist/hip ratio; BP = blood pressure; MAP = Mean Arterial Pressure; HDL = high-de...
PMC9831323
Main group data for evening, morning and overnight change in CRAE and CRVE and AVR grouped by AHI category.
apnoea-hypopnea
Data are mean ± SD.CRAE = Central retinal arteriolar equivalent; CRVE = central retinal venular equivalent; AVR = arterio-venule-ratio; AHI = apnoea-hypopnea index; Delta = overnight change.
PMC9831323
Cross-sectional study—RFM/CPAP sub-group
CRVE, CRAE, SDB
This section describes comparison of descriptive data for the RFM/CPAP Sub-Group (n = 85) versus those Main Group partcipants who were not recruited into the intervention study (n = 179), together with cross-sectional associations for non-SDB (Base Models) and SDB severity metrics (SDB Variable Models) with measured ev...
PMC9831323
Descriptive data and univariate analysis-RFM/CPAP sub-group
hypertension, CRVE, CRAE, SDB
HYPERTENSION
RFM/CPAP Sub-group participants differed from the Main Group participants who were not recuited into the sub-group (all p < 0.04) for gender composition, most measures of body size, hypertension history, overall cardiovascular risk, and all SDB variables. Thus, the applied selection criteria enriched the RFM/CPAP-Sub G...
PMC9831323
RFM/CPAP sub-group intervention study
OSA, cardiovascular disease, CRAE, CRVE
HYPERCHOLESTEROLEMIA, HYPERTENSION, CARDIOVASCULAR DISEASE
This section describes results for the 12 month RFM/CPAP interventional study (n = 66) which aimed to evaluate whether stabilising known cardiovascular disease risk factors (hypertension, hypercholesterolemia), while concurrently treating OSA with continuous positive airway pressure (CPAP), would result in alterations ...
PMC9831323
Discussion
morning CRVE, CRAE, retinal microvascular, CRVE, SDB
RETINAL VASCULAR, OTHER CARDIOVASCULAR DISEASE, RETINA
The primary focus of the present study was to test for relationships, in a non-diabetic sleep-clinic patient cohort, between polysomnography determined SDB severity and retinal micro-vasculature morphology. Overall no such relationships were detected, but when a subgroup enriched with more severe levels of SDB was exam...
PMC9831323
Study cohort characteristics
diabetes, cardio-vascular disease, SDB
DIABETES
In interpreting our results it is important to understand the characteristics of the study cohort. This was not a randomised community-recruited population-based study. We targeted a specific clinic group (i.e. patients referred to a sleep clinic for assessment of SDB) and then screened for and eliminated diabetes as a...
PMC9831323
Evening CRAE
SDB RFM/CPAP, hypoxia, CRAE, SDB
HYPOXIA, EYE
Group mean values for evening CRAE in our Main Group were ~12% smaller than reported for the younger Inter99 Eye study non-sleep cohort [In our multivariate Base Models, Main Group evening CRAE values were predicted by a combination of “fixed at the time of study” individual characteristics (age, ethnicity, height, smo...
PMC9831323
Evening CRVE
hypertension, CRVE, CRAE, SDB
HYPERTENSION, EYE
Group mean values for evening CRVE in our Main Group were ~15% smaller than reported for the younger Inter99 Eye study community cohort [In multivariate Base Models, Main Group evening CRVE values were predicted by a combination of “fixed at the time of study” individual characteristics (ethnicity, smoking history, hyp...
PMC9831323
RFM/CPAP intervention study
CRAE, stroke, OSA, CRVE, SDB
STROKE
When a sub-group with a wide range of SDB severity were individually stabilised on medical therapy, monitored and given CPAP therapy over a 12 month period, there was no change in group mean evening CRAE or CRVE values or the overnight change in CRAE or CRVE. However, evening CRVE values tended to decrease over the CPA...
PMC9831323
Study limitations
retinal microvascular anatomy, failure, diabetes, cardio-vascular disease, hypertension, SDB
HYPERTENSION, HYPERCHOLESTEROLAEMIA, DIABETES
The study has a number of strengths and limitations. Firstly, it is essentially descriptive and exploratory in nature, consequently, its results should be interpreted accordingly. In addition, given the number of relationships explored, p-values provided should be regarded as only a guide to any potential relationships...
PMC9831323
Conclusion
cardiovascular disease, CRVE, CRAE, SDB
MINOR, CARDIOVASCULAR DISEASE
In this study of non-diabetic patients presenting to a sleep clinic for investigation of SDB, total variance in retinal vessel size was partially explained by a combination of anthropometric characteristics and known predictors, with measures of SDB providing very little to no contribution. In a more severely affected ...
PMC9831323
Supporting information
(PDF)Click here for additional data file.
PMC9831323
Univariate correlations- main group (n = 264).
Spearman’s Rank Correlation Coefficients for associations between anthropometric/demographic characteristics, Framingham Risk, blood test results, and SDB variables versus retinal vessel diameters and their overnight change—Main Group.(DOCX)Click here for additional data file.
PMC9831323
RFM/CPAP sub-group versus main group (minus RFM/CPAP sub-group) participant characteristics.
Continuous A) and categorical B) data comparisons for RFM/CPAP Sub-Group participants (n = 85) versus Main Group minus CPAP Sub-Group participants (n = 179).(DOCX)Click here for additional data file.
PMC9831323
Multiple linear regression models for evening retinal vessel diameters using non -SDB variables (base models)—main group (n = 264).
CRVE, CRAE, SDB
Base Models showing non- SDB variable predictors for evening CRAE (A) and evening CRVE (B) for the Main Group.(DOCX)Click here for additional data file.
PMC9831323
Multiple linear regression models for evening retinal vessel diameters using SDB variables (SDB models)—main group (n = 264).
CRVE, CRAE, SDB
Results of adding each SDB variable individually to the Base Model for evening CRAE (A) and evening CRVE (B) in the Main Group.(DOCX)Click here for additional data file.
PMC9831323
Multiple linear regression models for evening CRAE using SDB variables (SDB models)- RFM/CPAP sub-group (n = 85).
CRAE
Results of adding LnAHI+1 and AHI Category into the Base Model for CRAE in the RFM/CPAP Sub-Group.(DOCX)Click here for additional data file.
PMC9831323
Compressed file archive–SPSS data/anonymysed data.
(ZIP)Click here for additional data file.
PMC9831323
Compressed file archive–SPSS syntax.
(ZIP)Click here for additional data file.
PMC9831323
Compressed file archive: Anonymised raw data/other.
Tracey Burns
MITCHELL
(ZIP)Click here for additional data file.(ZIP)Click here for additional data file.(PDF)Click here for additional data file.The authors thank ResMed (Australia) for providing CPAP machines; Jie-Jin Wang for advice and discussion; Karen Byth and Jannah Baker for assistance with statistical analysis; Tracey Burns, Manisha...
PMC9831323
References
PMC9831323
Background
occlusion of the aorta
HAEMORRHAGIC SHOCK
Resuscitative endovascular balloon occlusion of the aorta (REBOA) is increasingly used. The recently published UK-REBOA trial aimed to investigate patients suffering haemorrhagic shock and randomized to standard care alone or REBOA as adjunct to standard care and concludes that REBOA may increase the mortality.
PMC10619299
Main body
In this commentary we try to balance the discussion on use of REBOA and address limitations in the UK-REBOA trial that may have influenced the outcome of the study.
PMC10619299
Conclusion
The situation is complex, and the patients are in extremis. In summary, we do not think this is the end of balloons.
PMC10619299
Keywords
PMC10619299
Background
occlusion of the aorta
HAEMORRHAGIC SHOCK
Resuscitative endovascular balloon occlusion of the aorta (REBOA) is increasingly used, with haemorrhagic shock as the most common indication [Regardless, the recent publication of the UK-REBOA trial [
PMC10619299
Main text
aortic occlusion, bleeding, head injury, Traumatic brain injury, cardiac arrest, haemorrhage, trauma
AORTIC OCCLUSION, BLEEDING, STILL, CARDIAC ARREST, HAEMORRHAGE, HAEMORRHAGIC SHOCK
The UK-REBOA trial aimed to investigate patients suffering haemorrhagic shock and randomized to standard care alone (SC) or REBOA as adjunct to standard care. The study (and subsequently commentators on social media platforms such as Twitter/X) concludes that REBOA may increase the mortality [The study leaves numerous ...
PMC10619299
Conclusions
non-traumatic haemorrhage
Obviously, these patients are in extremis and the situation is complex. With all the abovementioned limitations, we believe that it is wrong to solely credit (or discredit) REBOA for the results. To successfully salvage the critically injured patient, we need to improve the sum of marginal gains. Short prehospital time...
PMC10619299
Acknowledgements
Not applicable.
PMC10619299
Author contributions
MR
JRB drafted the manuscript. MR reviewed the manuscript. Both authors read and approved the final manuscript.
PMC10619299
Funding
Not applicable.
PMC10619299
Availability of data and materials
Not applicable.
PMC10619299
Declarations
PMC10619299
Ethics approval and consent to participate
Not applicable.
PMC10619299
Consent for publication
Not applicable.
PMC10619299
Competing interests
CARDIAC ARREST
The authors declare that they have no financial competing interest. JRB and MR are both involved in REBOA research in cardiac arrest. Both authors are partially employed in the Norwegian Air Ambulance Foundation for research purposes.
PMC10619299
References
PMC10619299
Background
Advancing the health of adolescents, particularly their sexual and reproductive health, including HIV prevention and care, is a development imperative. A critical part for improving their wellbeing and economic development is the social status accorded to adolescent girls and young women (AGYW). However, AGYW in many c...
PMC9933327
Methods
The aim was to reduce EUP and improve SRH outcomes among AGYW in Zambia through provision of CSE linked to receptive SRH services. A 3-Arm randomized control study collected cross-sectional data at baseline, midline and Endline. Schools where CSE was being routinely provided were randomized into a non-intervention arm ...
PMC9933327
Results
Following 3 years of intervention exposure (CSE-Health Facility linkages), findings showed a significant decline of in-school pregnancies amongst AGYW in both intervention arms, with arm two exhibiting a more significant decline, having recorded only 0.74% pregnancies at endline (
PMC9933327
Conclusion
Linking provision of CSE with accessible SRH services that are receptive to needs of adolescents and young people reduces EUP, which provides the opportunity for higher retention in school for adolescent girls.
PMC9933327
Plain English summary
Among Zambia’s key health and development challenges, are high rates of EUP, and disproportionately higher HIV rates among AGYW. Pregnancy among girls in school poses a challenge. CSE programmes are part of available armamentarium to improve knowledge on the risks. Poor SRH places a heavy strain on health systems and u...
PMC9933327
Keywords
PMC9933327
Background
CSE
SECONDARY, SEXUALLY TRANSMITTED INFECTIONS
School attrition attributed to early and unintended pregnancy (EUP) exposes adolescent girls and young women (AGYW) to various social and financial hardships, negatively impacting access to resources and, thus, perpetuating gender-based inequities. School dropout is associated with poorer sexual and reproductive health...
PMC9933327
Methods
PMC9933327
Setting and study sample
SECONDARY
The study was implemented in selected schools and health facilities in Solwezi and Mufumbwe Districts (North-Western Province) of Zambia from 2017 to 2020. These two districts were selected because of high background adolescent pregnancy rates [A cross-sectional baseline assessment was conducted from August to November...
PMC9933327
Measures
SECONDARY
The present paper is concerned with in-school EUP as the outcome of interest. In addition, background characteristics of the study population were collected annually at each questionnaire round. Data was collected using preloaded study instruments on tablets using SurveyCTO software. A conceptual framework (see Fig. Pr...
PMC9933327
Sample size
sexual behaviors
The overall sample size was calculated based on the number of adolescents required to derive differences, if any, in knowledge and behavioural variables that meet the criteria in each school and each selected grade, and thus more applicable in later analysis, while noting adequacy for lower-level variables, such as pre...
PMC9933327
Data management analysis
REGRESSION
Collected data (entered using SurveyCTO) was transferred to Excel for preliminary cleaning, then transferred to Stata/IC 15.1 for further management and analysis. Bivariate logistic regression was implemented to examine whether socio-demographic characteristics in the study population differed significantly by study ar...
PMC9933327
Results
PMC9933327
Background of sample socio-demographic characteristics
SECONDARY
Descriptive sample characteristics at endline (R3-PI) of 986 participating AGYW are presented in Table Descriptive sample characteristics at endline (R3-PI)Of those in secondary school, a greater proportion (21.1%) were in Grade 8 and Grade 9 (18.8%). There were no significant differences between the arms at endline, r...
PMC9933327
Pregnancies in school
By study endline in 2020 (R3-PI), there were noteworthy reductions in the numbers of adolescent pregnancies following exposure to the CSE linkage program, with marked reductions documented in Arms 2 and 3 (see Fig. Cumulative number of school-level pregnancies, by year and study armA test of proportion was conducted to...
PMC9933327
Discussion
CSE, death
COMPLICATIONS
Findings in this paper suggest a significant decline in early and unintended pregnancies within schools featuring integrated CSE linked to SRH information and services, particularly when efforts are made to bring information on SRH services, to schools and linking CSE with health facilities that are sensitized to be mo...
PMC9933327
Conclusion
LATE PREGNANCIES
Considering that the odds of exposure to both in-school CSE and accessible receptive health facility-based SRH services, significantly increased for students in intervention arms 2 and 3, and pregnancies significantly declined, it appears that at least both of those additional interventions are beneficial and should be...
PMC9933327
Acknowledgements
We are grateful to all the schools that participated, Ministries of General Education and Health, at Head Quarters; Provincial and District levels staff whose support was invaluable, all the schools’ Parent Teacher Associations (PTAs) which endorsed the study, and the implementing partner we worked with, Young Women Ch...
PMC9933327
Authors’ contributions
MTM: study conceptualization, design, training, generation and analysis of data and paper writing; KK, N-CM, SI, ESN: training, generation, management and analysis of data and paper writing; JGR, RM, NO, CP, NC: data analysis and scientific writing; CK: training, drafting SOPs, and data generation. The author(s) read a...
PMC9933327
Funding
2016–2021
This work was funded by the United Nations Education, Social and Cultural Organization (UNESCO), under Contracts 4500427570 and 4500403122-A1, and United Nations Population Fund (UNFPA), under the 2016–2021 Implementing Partners Agreement.
PMC9933327
Availability of data and materials
The datasets generated and /or analysed specific to the current reported study are available on reasonable request to Population Council, Zambia, Data Manager Mr. Kondwani Kasonda kkasonda@popcouncil.org.
PMC9933327
Declarations
PMC9933327
Ethics approval and consent to participate
This study received ethical review and independent ethical approvals from Population Council’s Institutional Review Board (IRB), 1 Dag Hammarskjold, New York, NY 10017, USA; as well as the Zambia National IRB ERES CONVERRGE, Joseph Mwilwa Road, Lusaka 10100. We declare that all study methods were carried out in accorda...
PMC9933327
Consent for publication
Not Applicable, as that is not a prerequisite.
PMC9933327
Competing interests
The authors of this manuscript have no conflict of interest to declare.
PMC9933327
References
PMC9933327
Background
CMDs, stress-related disorders
DISORDERS
The number of people with common mental disorders (CMDs), especially stress-related disorders, has increased in several countries, including Sweden, during the past decade. Patients seeking care for long-term stress report severe symptoms. Although person-centred care (PCC) has shown several benefits, studies evaluatin...
PMC10585814
Objective
The aim of this study was to compare levels of self-reported symptoms of burnout between a control group receiving treatment as usual (TAU) and an intervention group receiving TAU with the addition of a person-centred eHealth intervention, in patients on sick leave for CMDs.
PMC10585814
Methods
SECONDARY
This study reports analysis of a secondary outcome measure from a randomized controlled trial. Patients (n = 209) on sick leave for CMDs were recruited from nine primary health care centres and allocated to either a control group (n = 107) or an intervention group (n = 102). The intervention consisted of phone support ...
PMC10585814
Results
Our findings showed changes in SMBQ scores over time in both the control and the intervention group. There was no significant difference in SMBQ scores between the groups; however, a difference in change over time between the groups was observed. The SMBQ scores decreased significantly more in the intervention group th...
PMC10585814
Conclusion
This person-centred eHealth intervention for patients on sick leave for CMDs showed a slight initial effect in reducing symptoms of burnout. Taking into account that both groups reported comparable SMBQ scores throughout the study period, the overall effect may be considered limited.
PMC10585814
Trial registration
: The trial was registered in ClinicalTrials.gov (Identifier NCT03404583). Date of registration: 19/01/2018.
PMC10585814
Keywords
Open access funding provided by University of Gothenburg.
PMC10585814
Introduction
CMDs, muscular pain, anxiety, exhaustion disorder, memory impairment, depression, Depression
DISORDERS
Internationally, the term “common mental disorders (CMDs)” often refers to various anxiety and depression disorders [Depression and anxiety are the most common mental health diagnoses among patients in primary care and symptoms of depression and anxiety are strongly related to psychosocial stress [In Sweden, the diagno...
PMC10585814
Methods
PMC10585814
Study design
SECONDARY, DISORDERS
This article reports a secondary outcome analysis of the PROMISE study (“Person-centred eHealth for treatment and rehabilitation of common mental disorders”), which was an open randomized controlled trial (RCT) evaluating the effects of a six-month person-centred eHealth intervention (interactive digital platform and t...
PMC10585814
Setting and participants
anxiety disorder, Anxiety, F32, depression, Depression, adjustment disorders, F33
DISEASE, DISORDERS
Eligible patients at nine public primary health care centres in western Sweden were screened by designated HCPs and enrolled between February 2018 and June 2020. Patients were considered eligible if they were 18–65 years old, and currently employed or studying (at least part-time) during the last 9 months, had a regist...
PMC10585814
Control group
Patients enrolled to the control group received TAU, which for patients with CMDs often takes place in primary care. Initially, they consult a physician to initiate the consultation, treatment, and follow-up on sick leave. Treatment often consists of medication or cognitive behaviour therapy, or both [
PMC10585814
Intervention group
The intervention, consisting of PCC delivered via an interactive digital platform (“My Health”), as well as phone support, was provided in addition to TAU. The team of HCPs (n = 5) conducting the intervention represented different disciplines (e.g. nursing, physiotherapy and occupational therapy). All received a half-d...
PMC10585814
Data collection and outcome measures
Self-reported questionnaire data were gathered by regular mail at baseline and after 3 and 6 months. The level of burnout was assessed using the SMBQ [
PMC10585814
Statistical analysis
INTERACTIONS
Descriptive statistics are given in percentages and numbers for categorical variables and means and standard deviation (SD) for continuous variables. Longitudinal associations between the two groups (the intervention and control group) and SMBQ scores were analysed using linear mixed models with random intercept in SPS...
PMC10585814
Discussion
The present study in patients on sick leave for CMDs aimed to compare levels of self-reported symptoms of burnout between a control group receiving TAU and an intervention group receiving a person-centred eHealth intervention in addition to TAU. Our findings showed changes in SMBQ scores over time in both groups. There...
PMC10585814
Study limitations
SECONDARY
Because this study is a secondary outcome analysis and was not initially used to detect differences in symptoms of burnout, a power calculation was not performed. The response rate on the self-reported questionnaire was relatively high (75%). However, there remains a risk of non-response bias. Another area for improvem...
PMC10585814
Acknowledgements
We want to thank all the participants for sharing their experiences, as well as the professional health care workers Mahboubeh Goudarzi, Eva-Lena Andersson, Paula Johansson Tunås and Emma Vasell for participating. We gratefully acknowledge the contribution of the participating primary centres, their staff, managers, an...
PMC10585814