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Ayer — Enero 17th 2026Tus fuentes RSS

Does CMR improve aetiological sub-phenotyping beyond echocardiography in patients with elevated LV filling pressure? A prospective registry study (PREFER-CMR)

Por: Bana · A. · Li · R. · Mehmood · Z. · Rogers · C. · Grafton-Clarke · C. · Bali · T. · Hall · D. · Jamil · M. · Ramachenderam · L. · Dudhiya · U. · Spohr · H. · Underwood · V. · Girling · R. · Kasmai · B. · Nair · S. · Matthews · G. · Garg · P.
Objectives

To evaluate the incremental diagnostic value and sub-phenotyping capability of Cardiovascular Magnetic Resonance (CMR) compared with Transthoracic Echocardiography (TTE) in patients with elevated left ventricular filling pressure (LVFP).

Design

Prospective registry study. [Results from ClinicalTrials.gov ID NCT05114785]

Setting

A single NHS hospital in the UK.

Main outcome measures

The primary outcome was the rate of diagnostic discordance between TTE and CMR. Secondary outcomes included the characterisation of specific pathologies identified by CMR where TTE was normal, non-diagnostic or provided a non-specific diagnosis.

Results

CMR demonstrated diagnostic discordance with TTE in 74% (n=194) of cases. In patients with a normal TTE (n=54), CMR identified heart failure with preserved ejection fraction (HFpEF) in 46% (n=25) and ischaemic heart disease (IHD) in 19% (n=10). For non-diagnostic TTE cases (n=15), CMR detected HFpEF in 53.3% (n=8) and IHD in 26.7% (n=4). Among those with non-specific left ventricular hypertrophy on TTE (n=47), CMR revealed HFpEF in 45% (n=21) and hypertrophic cardiomyopathy in 34% (n=16).

Conclusions

CMR markedly improves diagnostic precision and sub-phenotyping in patients with elevated LVFP, identifying key conditions like HFpEF, IHD and specific cardiomyopathies that TTE frequently misses. These findings highlight CMR’s critical role as a complementary imaging tool for refining diagnoses and informing management strategies in cardiovascular conditions.

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Performance of artificial intelligence in breast cancer screening programmes: a systematic review

Por: Jassim · G. · Otoom · O. · Nair · B. · Hashem · J.
Objective

With growing interest in applying artificial intelligence (AI) to population breast cancer screening, the evidence base has expanded rapidly. This systematic review aims to systematically review and summarise the published evidence on the use of AI in breast cancer screening.

Design

We conducted a systematic review of primary studies assessing AI for screening mammography, extracting test-accuracy metrics (sensitivity, specificity, recall and cancer detection rates) and workflow outcomes.

Data sources

We searched the Cochrane Breast Cancer Group Specialised Register, Cochrane CENTRAL, PubMed, Embase (Elsevier), Scopus, ClinicalTrials.gov and the WHO International Clinical Trials Registry Platform from January 2012 to June 2025; we also screened reference lists of included studies and relevant reviews. No language restrictions were applied.

Eligibility criteria

Primary studies evaluating AI for screening mammography (digital mammography or digital breast tomosynthesis) in asymptomatic women, assessing AI as a standalone reader or AI-assisted radiologist workflows versus radiologists alone. Eligible designs included randomised trials, prospective paired reader studies, real-world implementation/registry cohorts, retrospective cohorts and multireader-multicase reader studies conducted in population-based or opportunistic screening settings. Key outcomes included diagnostic accuracy metrics (eg, sensitivity, specificity, Area Under the Curve (AUC) and/or programme metrics (cancer detection rate (CDR), recall/abnormal interpretation rate, positive predictive value, arbitration/workload). We excluded protocols, pilot/feasibility studies, case reports, editorials and studies without relevant accuracy or screening outcomes.

Data extraction and synthesis

Two independent reviewers extracted data and assessed risk of bias. Study quality was appraised with Quality Assessment of Diagnostic Accuracy Studies-2 and an AI-specific critical appraisal tool, and findings were synthesised narratively with stratification by study design and AI integration role.

Results

31 studies met the inclusion criteria, encompassing randomised controlled trials, prospective paired-reader studies, registry-based implementations and retrospective simulations, representing more than two million screening examinations across Europe, Asia, North America and Australia. When used as a second reader or within double-reading workflows, AI generally maintained or modestly increased sensitivity (up to +9 percentage points (PP)) while preserving or improving specificity. Triage and decision-referral configurations delivered the greatest operational benefit, reducing reading volumes by 40–90% while maintaining non-inferior cancer detection when thresholds were conservatively calibrated. Stand-alone AI achieved AUC values comparable to radiologists and similar cancer detection in real-world, non-enriched cohorts, although interval-cancer follow-up remains incomplete in several datasets. In prospective randomised evidence, including the Mammography Screening with Artificial Intelligence trial (MASAI) trial, AI-supported screening achieved higher CDRs (6.4 versus 5.0 per 1000; p=0.0021) with stable or reduced false-positive and recall rates. Across implementation and simulation settings, integration of AI reduced radiologist workload substantially, with triage and band-pass approaches reducing the number of reads by approximately 40–90%. Overall certainty is limited by heterogeneity across study designs, reliance on enriched datasets for some accuracy estimates and incomplete interval-cancer follow-up in several major studies.

Conclusion

Contemporary AI systems show diagnostic performance that is broadly comparable to radiologists and can substantially reduce reading workload, particularly when used as a second reader or triage tool. Emerging prospective evidence supports their safe integration in these roles, although transparent reporting, standardised evaluation and long-term population studies are still required before considering AI as a stand-alone reader. AI may improve workflow efficiency and possibly cancer detection, but definitive evidence on safety, especially interval cancer outcomes, remains essential.

A Descriptive Evaluation of Evidence‐Based Rounds in Critical Care Using Mixed Data Types

ABSTRACT

Objectives

To pilot and evaluate the implementation of a structured Evidence-Based Rounds (EBR) education model in critical care.

Design

A mixed data type design was used to evaluate Evidence-Based Rounds in a critical care setting. Structured observational data were captured and open-ended survey responses were submitted by attendees. Content analysis and descriptive statistics were used to analyse survey findings.

Results

Seventeen rounds were completed between March 2023 and January 2024 with a total of n = 83 clinical staff members. From these, n = 55 staff completed and submitted evaluation surveys. Rounds were most frequently attended by nurses of all bandings including senior clinical nurses, support workers and student nurses. Evidence-Based Rounds were globally perceived as a positive and useful education strategy and staff were very willing to attend future sessions. Patient outcomes were not directly assessed and rounds specifically facilitated three outcomes: (1) helping staff apply evidence to practice, (2) building staff confidence in presenting clinical information and (3) supporting staff in identifying local improvements to patient care.

Conclusion

Evidence-Based Rounds are an adaptable effective model of bedside education within critical care. In our setting, staff perceived that this model facilitated the application of evidence in clinical practice and positively influenced feelings of confidence. Importantly, this education strategy empowered nurses to explore and identify improvements locally to patient care. Whilst this model offers a practical education approach to address some of the key critical care workforce issues, such as an expanding curriculum and loss of senior staff, it could also be widely adopted to other clinical areas.

Implications for the Profession

Evidence-Based Rounds are perceived by staff as a successful bedside education model that facilitates nurses to apply evidence in practice. It is feasible that this strategy is a potentially sustainable, low-cost model for continuing professional development centred around routine clinical work.

Patient and Public Contribution

No patient or public contribution.

Correlation between spiritual well-being and quality of life among patients with advanced cancer receiving palliative care in a tertiary cancer centre in Northern Kerala, India: a cross-sectional study

Por: M S · B. · Nair · S. · Shenoy · P. K. · Spruyt · O. · Venkateswaran · C. · K C · R. · K · R. · B · S. · D K · V.
Objectives

Spiritual well-being (SpWB) is a critical yet often underexplored component of holistic care for patients with advanced cancer. This study aimed to assess the SpWB and quality of life (QOL) levels and examine their correlation among patients receiving palliative care at a tertiary cancer centre in Kerala, India.

Design

Institution-based cross-sectional observational study among patients with advanced cancer conducted between August 2023 and December 2024.

Setting

The outpatient department of a major tertiary-level, autonomous cancer centre under the Government of Kerala, India.

Participants

398 patients with advanced cancer aged 18 and above.

Measures

SpWB and QOL were measured using validated Malayalam versions of the Functional Assessment of Chronic Illness Therapy–Spiritual well-being Expanded Version and European Organisation for Research and Treatment of Cancer, Quality of Life Core 30 questionnaires, respectively. Data collection included patient self-reports or assistance by a medical social worker.

Results

The median (IQR) age of participants was 59 (51–65) years; most were married (94.5%) and from an upper-lower socioeconomic background (55%). Hinduism was the predominant religion (67.1%). Almost all patients (99%) were aware of their diagnosis, but only 62.3% knew their prognosis. The median (IQR) SpWB score was 67.5 (57–76), significantly higher in females (p=0.02). The median (IQR) QOL score was 50 (41.7–66.7). SpWB was positively correlated with QOL (r=0.766, p

Conclusions

SpWB showed a strong positive correlation with QOL among patients with advanced cancer. Enhancing SpWB may play a pivotal role in improving overall QOL in palliative care settings.

Mixed-methods non-randomised single-arm feasibility study assessing delivery of a remote vocational rehabilitation intervention for patients with serious injury: the ROWTATE study

Por: Kellezi · B. · Holmes · J. · Kettlewell · J. · Lindley · R. · Radford · K. · Patel · P. · Bridger · K. · Lannin · N. A. · Andrews · I. · Blackburn · L. · Brooks · A. · das Nair · R. · Fallon · S. · Farrin · A. · Hoffman · K. · Jones · T. · Morriss · R. · Timmons · S. · Kendrick · D.
Objectives

This study aimed to evaluate the feasibility of delivering a vocational rehabilitation intervention (Return to Work After Trauma—ROWTATE), remotely to individuals recovering from traumatic injuries. The primary objectives were to assess therapists’ training and competence, adapt the intervention and training for remote delivery and assess the feasibility and fidelity of remote delivery to inform a definitive randomised controlled trial.

Design

A mixed-methods feasibility study incorporating (1) telerehabilitation qualitative literature review, (2) qualitative interviews preintervention and postintervention with therapists and patients, (3) a team objective structured clinical examination to assess competency, (4) usefulness of training, attitudes towards (15-item Evidence-Based Practice Attitude Scale) and confidence in (4-item Evidence Based Practice Confidence Scale) evidence-based practice, intervention delivery confidence (8-bespoke questions) and intervention behaviour determinants (51-items Theoretical Domains Framework) and (5) single-arm intervention delivery feasibility study.

Setting

The study was conducted in two UK Major Trauma Centres. The intervention and training were adapted for remote delivery due to the COVID-19 pandemic.

Participants

Therapists: Seven occupational therapists (OTs) and clinical psychologists (CPs) were trained, and six participated in competency assessment. Seven OTs and CPs participated in preintervention interviews and surveys; six completed post-intervention interviews and four completed post-training surveys. Patients: 10 patients were enrolled in the single-arm feasibility study and 4 of these participated in postintervention qualitative interviews. Inclusion criteria included therapists involved in vocational rehabilitation delivery and patients admitted to major trauma centres. Exclusion criteria included participation in other vocational rehabilitation trials or those who had returned to work or education for at least 80% of preinjury hours. Intervention: The ROWTATE vocational rehabilitation intervention was delivered remotely by trained OTs and CPs. Training included competency assessments, mentoring and adaptation for telerehabilitation. The intervention was delivered over multiple sessions, with content tailored to individual patient needs.

Results

Therapists found the training useful, reported positive attitudes (Evidence-Based Practice Attitude Scale mean=2.9 (SD 0.9)) and high levels of confidence in delivering evidence-based practice (range 75%–100%) and the ROWTATE intervention (range 80%–100%). Intervention barriers identified pretraining became facilitators post-training. Half the therapists needed additional support post-training through mentoring or additional training. The intervention and training were successfully adapted for remote delivery. High levels of fidelity (intervention components delivered: OTs=84.5%, CPs=92.9%) and session attendance rates were found (median: OT=97%, CP=100%). Virtually all sessions were delivered remotely (OT=98%, CP=100%). The intervention was acceptable to patients and therapists; both considered face-to-face delivery where necessary was important.

Conclusions

The ROWTATE intervention was delivered remotely with high fidelity and attendance and was acceptable to patients and therapists. Definitive trial key changes include modifying therapist training, competency assessment, face-to-face intervention delivery where necessary and addressing lower fidelity intervention components.

Trial registration number

ISRCTN74668529.

Implementing timeliness metrics for household contact tracing and TB preventive treatment through TB champions in the public sector, India: an explanatory mixed-methods study

Por: Nair · D. · Thekkur · P. · Thiagesan · R. · Vyas · A. · Paul · S. · Mishra · B. K. · Hota · P. K. · Khogali · M. · Zachariah · R. · Berger · S. D. · Satyanarayana · S. · Kumar · A. M. V. · Bochner · A. F. · Ananthakrishnan · R. · Harries · A. D.
Objectives

A ‘7-1-7’ timeliness metric, developed for hastening the response to infectious disease outbreaks/pandemics, was adapted to improve screening and managing household contacts (HHCs) of pulmonary tuberculosis (TB) patients. The feasibility, enablers, challenges and utility of implementing this modified metric through TB Champions (TB survivors) for HHC management were assessed.

Design

This was an explanatory mixed-methods study with a cohort design (quantitative) followed by a descriptive design with focus group discussions (qualitative).

Setting

The study was conducted within routine programmatic settings in public health facilities in six districts from three states of India.

Participants

In total, 595 drug-susceptible index pulmonary TB patients registered for treatment in the selected health facilities, and their listed 2108 HHCs were included in the study between December 2022 and August 2023. All 17 TB Champions involved in implementation participated in the focus group discussions.

Primary outcome measures

The primary outcome measures were the percentage of eligible participants receiving the desired service within the ‘7-1-7’ timeliness metric and challenges in achieving the timeliness metrics.

Results

In 89% of 595 index patients, their HHCs were line-listed within 7 days of initiating anti-TB treatment (‘First-7’). In 90% of 2108 HHCs, screening outcomes were ascertained within 1 day of line-listing (‘Next-1’). In 42% of 2073 HHCs eligible for further evaluation, anti-TB treatment, TB preventive treatment (TPT) or a decision to not receive medication were made within 7 days of screening (‘Second-7’). Barriers to TPT uptake included lack of money and daily wage losses for travelling to clinics, reluctance of asymptomatic contacts to take medication and fear of adverse events. TB Champions felt timeliness metrics improved performance in the systematic and timely management of HHCs.

Conclusions

TB Champions found ‘7-1-7’ timeliness metrics were feasible and useful, and national TB programmes should consider their operationalisation.

Stakeholder acceptability of the ROWTATE vocational rehabilitation intervention in England: an interview study

Por: Mann · C. · Lindley · R. · Kendrick · D. · Radford · K. A. · Holmes · J. · Kellezi · B. · das Nair · R. · Fallon · S. · Timmons · S.
Objectives

The ROWTATE intervention helps people experiencing trauma to return to work (RTW) through vocational rehabilitation (VR) support from occupational therapists (OTs) and clinical psychologists (CPs). This study aims to explore and understand the acceptability of VR after traumatic injury for patients, therapists and employers.

Design and setting

Qualitative interviews in eight major trauma regions, UK.

Participants

Interviews were undertaken with a range of stakeholders—15 patients, 15 therapists and 6 employers. Data were analysed using the theoretical framework of acceptability.

Results

Stakeholders understood the aim of the intervention was to support people to RTW and perceived it as effective in achieving this. Patients and therapists understood the benefits of working with a combination of occupational therapy and clinical psychology. The intervention fits with the values of patients wanting to recover, therapists wanting to offer support and line managers wanting to meet employer and employee needs.

Patients reported they could not have achieved RTW without the intervention, and their therapist helped them feel less alone. Therapists felt that their work was rewarding, effective and had good outcomes. Patients perceived remote delivery as less burdensome than attending in person. Therapists felt they wasted time on non-patient activity, such as (re-)arranging appointments.

Employers discussed the difficulty of balancing employer and employee needs and managing uncertainty. Some workplace policies lacked flexibility, and without the ROWTATE intervention, employers lacked confidence in supporting employees RTW.

Conclusions

A VR intervention delivered remotely by OTs and CPs is acceptable to patients, therapists and employers.

Trial registration number

ISRCTN43115471.

Prevalence and factors associated with tuberculosis infection (TBI) among residents of a monastery situated in a high-TB burden area: A cross-sectional study, Sikkim, India

by Mohammad K. Siddiqui, Shagufta Khan, Rinchenla Bhutia, Vivek Nair, Ashok Rai, Nirmal Gurung, Tseten Yamphel, Peggy K. Dadul, Debya S. Kerongi, Karma Doma Bhutia, Jagat Pradhan, Kabita Khati, Sreenivas A. Nair, Shamim Mannan, Kiran K. Rade, Dinesh Gupta, Pawan Malhotra, L. Masae Kawamura, Shikha Dhawan, Asif Mohmmed

Background

Monasteries in India house individuals from childhood to advanced age. These congregate settings amplify tuberculosis (TB) transmission and exposure when the disease is present, especially in the high burden areas like Sikkim, India. However, the prevalence of active-TB disease (ATB), tuberculosis infection (TBI), and their associated risk factors have not been studied. The diagnosis and treatment of TBI remain a major bottleneck in eradicating TB. ATB and TBI risk among residents living in the congregate setting of monasteries in Sikkim, India, a high-TB burden area, may be high due to high-density living quarters, public interaction and their frequent travel history but has never been illustrated.

Method

A cross-sectional screening of the monks and residents of Rumtek Monastery (Sikkim, India) was carried out to assess extent of ATB and TBI in a congregate setting. TrueNat MTB and GeneXpert MTB/Rif systems were utilized for ATB diagnosis, whereas QuantiFERON-TB Gold Plus (QFT-plus) Interferon-gamma release assay (IGRA) analysis was used for TBI detection. Follow-up sputum testing by TrueNat MTB was performed on IGRA-positive individuals to exclude ATB.

Results

Among the 350 inhabitants of the monastery, 7% (25/350) were found to be symptomatic for TB, whereas 93% (325/350) were asymptomatic. Out of them, 189 participants, including symptomatic cases, agreed to participate in the study and were screened for TBI; however, 15 participants were excluded from the study due to result discrepancies. None of the participant were diagnosed with active tuberculosis (ATB), although, 44.2% (77/174) were found to be positive for TBI; however, none of those with TBI progressed to ATB during one year follow-up. Risk factors for TBI included: advancing age, frequent travel history, family history of TB or having contacts with TB patients and abnormal Body Mass Index (BMI) ≤18.5- ≥ 25.

Conclusion

This study confirms the high prevalence of TBI among residents in the congregate setting of monasteries, and justify TB prevention strategies by targeted screening, TBI testing and preventive treatment in congregate settings of high TB burden areas.

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