Recent publications
- Amy T. Hsu
- Viktor Bugajev
- Timothy A. Gottschalk
- [...]
- Ivana Halova
- Paulien H M Voorter
- Michael S Stringer
- Maud van Dinther
- [...]
- Walter H Backes
BACKGROUND
White matter hyperintensities (WMHs) are established structural imaging markers of cerebral small vessel disease. The pathophysiologic condition of brain tissue varies over the core, the vicinity, and the subtypes of WMH and cannot be interpreted from conventional magnetic resonance imaging. We aim to improve our pathophysiologic understanding of WMHs and the adjacently injured normal-appearing white matter in terms of microstructural and microvascular alterations using quantitative magnetic resonance imaging in patients with sporadic and genetic cerebral small vessel disease.
METHODS
Structural T 2 -weighted imaging, multishell diffusion imaging, and dynamic contrast–enhanced magnetic resonance imaging were performed at 3T in 44 participants with sporadic cerebral small vessel disease and 32 participants with monogenic cerebral small vessel disease (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy; 59±12 years, 41 males) between June 2017 and May 2020 as part of the prospective, multicenter (Edinburgh, the United Kingdom; Maastricht, the Netherlands; and Munich, Germany), observational INVESTIGATE-SVDs study (Imaging Neurovascular, Endothelial and Structural Integrity in Preparation to Treat Small Vessel Diseases). The mean diffusivity, free water content, and perfusion (all derived from multishell diffusion imaging), as well as the blood-brain barrier leakage and plasma volume fraction (derived from dynamic contrast–enhanced magnetic resonance imaging), were compared between deep and periventricular WMH types using paired t tests. Additional spatial analyses were performed inside and outside the WMH types to determine the internal heterogeneity and the extent of the penumbras, that is, adjacent white matter at risk for conversion to WMH.
RESULTS
Periventricular WMH had higher mean diffusivity, higher free water content, and more plasma volume compared with deep WMH ( P <0.001, P =0.01, and P <0.001, respectively). No differences were observed in perfusion ( P =0.94) and blood-brain barrier leakage ( P =0.65) between periventricular and deep WMHs. The spatial analyses inside WMH and the adjacent white matter revealed a gradual gradient in white matter microstructure, free water content, perfusion, and plasma volume but not in blood-brain barrier leakage.
CONCLUSIONS
We showed different pathophysiological heterogeneity of the 2 WMH types. Periventricular WMHs display more severe damage and fluid accumulation compared with deep WMH, whereas deep WMHs reflect stronger hypoperfusion in the lesion’s core.
REGISTRATION
URL: https://www.isrctn.com ; Unique identifier: ISRCTN10514229.
Purpose
Radiolabelled minigastrin (MG) analogues targeting the cholecystokinin-2 receptor (CCK2R) have proven to be a promising approach for peptide receptor radionuclide therapy (PRRT). In this study, we report on the radiopharmaceutical development and standardization of the preparation of [¹⁷⁷Lu]Lu-DOTA-MGS5 using an automated synthesis module. Furthermore, we present the preclinical tests required to move forward towards a first therapeutic clinical trial as well as preliminary clinical dosimetry data.
Methods
Five individual batches of [¹⁷⁷Lu]Lu-DOTA-MGS5 were synthesized and analysed according to predefined quality control specifications. Cell-based experiments and biodistribution studies were performed to evaluate the specific receptor binding and tumour uptake of the radiopharmaceutical formulation. A preclinical dosimetry study was carried out in tumour xenografted mice and a first dosimetry study was performed in a patient with small cell lung cancer.
Results
The automated cassette-based production of [¹⁷⁷Lu]Lu-DOTA-MGS5 resulted in a product with high radiochemical purity of > 98% and high stability. The new radiopharmaceutical showed a favourable biodistribution profile in A431-CCK2R xenografted BALB/c nude mice. Pharmacokinetic data obtained in mice and dosimetry extrapolation demonstrated the feasibility of PRRT. In the preliminary patient-specific dosimetry study, a low risk of toxicity was shown and a mean absorbed dose of 12.5 ± 10.2 (1.2–28) Gy/GBq was calculated for delineable tumour lesions.
Conclusion
The radiopharmaceutical development and the preclinical/clinical results support the initiation of a first clinical trial to evaluate the therapeutic potential of [¹⁷⁷Lu]Lu-DOTA-MGS5 in PRRT.
Background
Mass‐forming intrahepatic cholangiocarcinoma (MF‐ICC) is the second most common primary liver cancer and liver resection offers the best chance of possible cure. This study aimed to assess treatment outcomes and prognostic factors for long‐term survival in patients who underwent curative‐intent liver resection.
Methods
A retrospective analysis was conducted on prospectively collected data from patients with MF‐ICC managed at the Royal North Shore/North Shore Private Hospital from January 1998 to October 2023. Baseline, peri‐operative and long‐term outcomes have been analysed, including an overall survival (OS) and disease‐free survival (DFS) analysis.
Results
During the 25‐year study period, 47 patients underwent curative‐intent liver resection for primary MF‐ICC at a median age of 70 years. The median OS was 36 months, with a 5‐year OS of 33%. Multiple liver tumours (HR = 2.84; 95% CI = 1.24–6.48; P = 0.013) and a positive resection margin (HR = 2.46; 95% CI = 1.10–5.52; P = 0.029) were identified as independent predictors of poor long‐term OS. Recurrence occurred in 62% of patients after a median DFS of 16 months, with poor tumour differentiation (HR = 3.93; 95% CI = 1.62–9.54; P = 0.002) and elevated tumour markers (HR = 3.47; 95% CI = 1.53–7.87; P = 0.003) as independent predictors of poor DFS.
Conclusion
Liver resection can offer a significant chance for prolonged survival in a highly selected population of patients with MF‐ICC. However, the surgical challenges inherent in treating this rare disease are evident, emphasizing the need for a multimodal approach and continued exploration of additional therapies to enhance personalized treatment strategies.
Coronary CT angiography (CCTA) and dynamic stress CT myocardial perfusion (CT-MPI) are established modalities in the analysis of patients with chronic coronary syndromes. Their role in patients with suspected non-ST elevation myocardial infarction (NSTEMI) is unknown. CCTA with CT-MPI might assist in the triage of NSTEMI patients to the Cath lab. We investigated the correlation of significant epicardial lesions by CT-MPI in addition to CCTA compared to invasive coronary angiography (ICA) with fractional flow reserve (FFR) in patients with NSTEMI. Twenty NSTEMI patients scheduled for ICA were enrolled in this study with planned ICA. CCTA and CT-MPI was performed pre-ICA. For each coronary artery, the presence or absence of significant lesions was interpreted by CCTA with CT-MPI, using an FFR of ≤ 0.8 or angiographic culprit (stenosis > 90%, suspected plaque rupture) as reference. The main outcome was the per-vessel correlation. Sixteen out of 20 patients had a culprit lesion that required immediate revascularization. CCTA with ≥ 50% stenosis demonstrated a per vessel sensitivity and specificity for the detection of significant stenosis of respectively 100% (95% CI: 86–100%) and 75% (95% CI: 58–88%). CCTA with CT-MPI showed a lower sensitivity 90% (95% CI: 70–99%) but higher specificity of 100% (95% CI: 90–100%). CCTA with CT-MPI exhibits a strong correlation for identifying significant CAD in patients with NSTEMI. Thereby, it might assist in the triage of ICA in NSTEMI patients.
This study aims to investigate and categorize health problems in children with profound intellectual and multiple disabilities (PIMD). We conducted a scoping review in five electronic databases (PubMed, Embase, Medline, PsychInfo, and Web of Science), including peer-reviewed studies that describe health problems in children with PIMD. Articles on PIMD were included when mentioning children with severe or profound intellectual disability (IQ/DQ < 35 or developmental age < 24 months) AND severe/profound motor impairment (GMFCS IV/V, non-ambulatory/not walking without support or gross motor function measure (GMFM-66) score < 40). Health problems were divided into 11 different categories based on literature and the experiences of the authors. Both health problems reported by caregivers and diagnosed by health professionals were included. A data extraction tool was developed using the JBI checklist recommendations. The review included 22 studies, with a total of 894 patients across all the articles. The most reported health problems in children with PIMD were epilepsy, respiratory infections, feeding difficulties, GERD, scoliosis, and visual impairment. There was no uniformity in the definition and terminology of PIMD. Conclusion: The studies in this review covered a wide range of health problems, with only a few focusing on the entire range. Given the lack of knowledge about children with PIMD, further research is required on the presence of health problems, the age of onset, and appropriate treatments. Awareness, early detection, and treatment of the health problems could optimize the medical care and quality of life of children with PIMD. What is Known:
• Children with profound intellectual and multiple disabilities (PIMD) have severe intellectual and motor disabilities and various comorbidities.
• Children often visit the hospital and provided care is complex and fragmented.
What is New:
• Children with PIMD develop a wide range of health problems; most reported are epilepsy, respiratory infections, and feeding difficulties.
• Little is known about treatment of health problems in children with PIMD.
Purpose of the Review
This narrative review aims to discuss the most recent studies regarding the risk of cardiovascular disease (CVD) in women with psoriasis, psoriatic arthritis (PsA) and spondyloarthritis (SpA). In addition, the potential of menopause to modulate/increase CVD risk in women with these diseases will also be explored. It is of major interest to gain more understanding into this topic because it can have meaningful implications for screening and treatment of CVD risk in these women.
Recent Findings
Literature shows that psoriasis, PsA, SpA and menopause itself cause higher CVD risks and higher CVD prevalence. This is predominantly explained by the increase of chronic systemic inflammation. No existing literature conclusively demonstrates or studies specifically whether the menopause amplifies this effect caused by psoriasis, PsA, or SpA.
Conclusion
Differences in pathophysiology of psoriasis, SpA and PsA versus the menopausal transition could suggest that menopause may increase the risk of CVD. However, the hypothesis that menopause represents an additional CV risk factor in women with psoriasis, PsA and SpA still needs to be thoroughly investigated and more clinical studies are required for further understanding and conclusions.
Deficits in social cognition may impair emotional processing and facial emotional recognition (FER) in patients with bipolar disorder (BD) and schizophrenia. FER is generally explored using photographs or images of static faces that do not fully capture the complexity of real-life facial stimuli. To overcome this limitation, we developed a set of dynamic virtual faces depicting six basic emotions (i.e. happiness, sadness, anger, fear, disgust, and surprise) and a neutral expression suitable for presentation in immersive and nonimmersive virtual realities. This study presents preliminary findings on the differences in FER accuracy from a frontal view between immersive and nonimmersive virtual realities among patients experiencing a relapse of schizophrenia ( n = 10), a manic phase of BD ( n = 10), and a group of healthy controls (HCs) ( n = 10). As a secondary objective, we compare the FER accuracy across these three groups. Patients with schizophrenia and BD showed similar accuracy in recognizing emotions in immersive and nonimmersive virtual reality settings. However, patients with schizophrenia exhibited lower FER accuracy than HCs in both settings. Individuals with BD showed intermediate accuracy between those with schizophrenia and HCs, although these differences were not statistically significant. Notably, recognition of negative emotions was significantly impaired in both groups of patients.
European Cancer Organisation Essential Requirements for Quality Cancer Care (ERQCC) are written by experts representing all disciplines involved in cancer care in Europe. They give patients, health professionals, managers and policymakers a guide to essential care. Here, the essential requirements to treat ovarian cancer patients are described. Ovarian cancer patients continue to have low cure rates with wide variation in treatment and care in Europe and beyond. They require complex treatment that should be carried out in specialised ovarian/gynaecological cancer centres by professionals with the appropriate expertise interacting in a multidisciplinary team. Such centralisation is still not well established in many European countries. A patient-centred pathway from diagnosis through treatment to survivorship, managed in dedicated centres, is key to achieving optimal care and a successful clinical outcome.
Background
Goal setting is an essential step in the clinical reasoning process of speech and language therapists (SLTs) who provide care for children, adolescents and adults with communication disorders. In the light of person‐centred care, shared or collaborative goal setting between the SLT and client is advised in (inter)national guidelines. SLTs face challenges in implementing (shared) goal setting as theoretical frameworks and practical interventions are scarce and less applicable to use with a wide range of communication vulnerable populations.
Aims
A first step in developing theory and practical interventions is to explore first‐hand experiences of SLTs and clients about day‐to‐day goal‐setting practice. This study was guided by the following research question: What are the perspectives and needs of SLTs and persons with communication disorders regarding (shared) goal setting in routine SLT services?
Methods & Procedures
The qualitative study was carried out in the setting of routine speech–language therapy services in community practices, primary education and neurological rehabilitation in the Netherlands. Data collection followed the principles of video‐reflexive ethnography, using video footage of goal‐setting conversations to facilitate semi‐structured, reflexive interviews. Data analysis was based on reflexive thematic analysis. A total of 12 interviews were conducted with client–SLT dyads, covering perspectives from children, parents and adults with a range of communication difficulties and their SLTs.
Outcomes & Results
Data analysis resulted in four themes, of which two contain subthemes. Each theme represents a central organizing concept found in SLT and client interviews. The themes were identified as: (1) goal setting is a complex process; (2) goal talk needs to be communication accessible; (3) communicative participation goals are hard to grasp; and (4) the importance of relationships. Topics such as power imbalance, communication vulnerability, effective communication strategies, and motivation and trust are explored under these themes.
Conclusions & Implications
SLTs are encouraged to view shared goal setting as a process that needs to be explicitly planned and communicated with clients regardless of their age or communication vulnerability. SLTs have expert knowledge and skills when it comes to supporting communication and applying these skills during goal talks might strengthen shared goal setting and foster a therapeutic relationship. There is a need to concretely conceptualize and embed shared goal setting in policy and clinical guidelines. The themes reported have tentative clinical implications for developing such policy, and shared goal‐setting interventions for SLT practice, under the condition that SLTs and people with communication disorders are continuously involved.
WHAT THIS PAPER ADDS
What is already known on the subject
SLTs want to set meaningful goals together with their patients but lack theory and resources to effectively shape the goal‐setting process. Few studies have directly reported on the perspectives and needs of SLTs and patients regarding goal setting. Patients generally perceive goal setting as a vague activity in which they minimally participate. SLTs want to involve patients in the goal‐setting process and describe the potential benefits, but they also want to report barriers on the systemic and professional competence level.
What this paper adds to the existing knowledge
SLTs and patients perceive shared goal setting as a multifaceted process, rather than a one‐off conversation. This process holds potential vulnerabilities for SLTs and patients alike, and the themes in this study propose potentially helpful ingredients to mediate this vulnerability and shape the goal‐setting process.
What are the potential or clinical implications of this work?
To take the first steps towards effective shared goal setting, SLTs should embrace the element of discovery in goal setting and apply their expert knowledge in supporting communication. To develop practical interventions for SLTs, shared goal setting needs to be further conceptualized and embedded in policy and clinical guidelines.
Cardiac involvement (CI) in phosphomannomutase 2‐congenital disorders of glycosylation (PMM2‐CDG) is part of the multisystemic presentation contributing to high mortality rates. The most common cardiac manifestations are pericardial effusion, cardiomyopathy, and structural heart defects. A genotype–phenotype correlation with organ involvement has not yet been described. We analyzed clinical, biochemical, and molecular genetic data of 222 patients from eight European centers and characterized the natural course of patients with CI. Fifty‐seven patients (45 children) presented with CI, of whom 24 died (median age 21 months, standard deviation 49.8). Pericardial effusion was the most frequent manifestation (55.4%), occurring mostly within the first 6 months of life. The most common pathogenic variants in patients with CI were p.(Arg141His) in 74%, followed by p.(Val231Met) in 36%, which is 3.5 times higher than in PMM2‐CDG patients without CI ( p < 0.0001). Twenty‐one out of 36 patients with p.(Val231Met) had CI; among them, 15 died, compared to 33 out of 166 patients without p.(Val231Met) who had CI ( p < 0.0001). Nine out of 33 patients died ( p = 0.0015), indicating greater clinical severity. Furthermore, the p.(Val231Met) variant is predominant in Eastern Europe, suggesting a founder effect. Cardiac complications in PMM2‐CDG patients are common and serious. The variant p.(Val231Met) profoundly influences the extent of CI and mortality rates. Therefore, we recommend cardiac surveillance be included in the follow‐up protocols for PMM2‐CDG.
Background
A sustainable pandemic preparedness strategy is essential to ensure equitable access to healthcare for individuals with neurodegenerative diseases. Moreover, it is vital to provide clinicians and researchers in the neurodegenerative disease fields with resources and infrastructure to ensure continuity of their work during a (health) crisis.
Methods
We established an international collaboration between researchers, clinicians, and patient representatives from the Netherlands, Poland, and the United Kingdom. We co-created a pandemic preparedness plan primarily informed by examples from those affected by or working in the field of Parkinson’s disease, with potential application to other neurodegenerative diseases or the general population. This plan builds upon insights and experiences from four population-based studies during the COVID-19 pandemic. Between March and November 2023, we organised two hybrid meetings in Bristol (United Kingdom) and Rotterdam (the Netherlands), and two online meetings.
Results
Research recommendations included three core factors in questionnaire design during health crises: 1) using existing, validated questions, 2) questionnaire adaptability and flexibility, and 3) testing within and outside the research group. Additionally, we addressed burden of participation, and we advocated for robust data sharing practices, underlining the importance of regulatory measures extending beyond the COVID-19 pandemic. We also shared clinical perspectives, including strategies to mitigate social isolation; challenges in virtual versus in-person consultations; and systemic changes to recognise and prevent moral injury in healthcare professionals.
Conclusion
In this pandemic preparedness plan, we provide research and clinical recommendations tailored to the field of Parkinson’s disease, with broader relevance to other neurodegenerative diseases and the general population. This establishes an essential framework for setting up new studies and safeguarding research and clinical practices when a new pandemic or other (health) crisis emerges.
Graphical Abstract
Background
International guidelines recommend germline genetic testing for men with metastatic prostate cancer. If offered to all patients by genetic healthcare professionals, there will be insufficient capacity to cope with the high patient numbers. In a mainstreaming pathway, non-genetic healthcare professionals (ngHCPs) discuss and order germline genetic testing instead of referring patients to genetic healthcare professionals. We aimed to evaluate the experience of ngHCPs with pre-test genetic counselling and to explore the feasibility from the ngHCPs’ perspective.
Methods
We carried out a prospective cohort study in 15 hospitals in the Netherlands. All participating ngHCPs (i.e. urologists, medical oncologists, specialist nurses and nurse practitioners) completed an online training module of 45 min. The ngHCPs completed a questionnaire both before the training and at three and nine months after it. Paired analyses were used to compare the first with the last questionnaires on attitude, confidence in the ability to discuss and order germline genetic testing, and perceived and actual knowledge of genetics and genetic testing.
Results
167 ngHCPs were invited to participate of whom 69 completed the first questionnaire and started or completed the last one. They had a positive attitude towards offering genetic testing themselves. After nine months of providing pre-test genetic counselling, significantly more ngHCPs considered mainstreaming helpful (94% after versus 81% before, p = 0.01). Both perceived and actual knowledge increased significantly. Pre-test genetic counselling took less than 10 minutes for 82% of ngHCPs and the majority (88%) were in favour of continuing the mainstream pathway. Only six participating ngHCPs considered mainstreaming possible without completing a training module beforehand.
Conclusions
After completing a short online training module, ngHCPs feel well-prepared to discuss germline genetic testing with metastatic prostate cancer patients.
Background
Having lifelong learning skills is a necessity for healthcare professionals. To evaluate these skills, sound instruments are needed. Those working in healthcare of medical educating looking for a suitable instrument to evaluate lifelong learning (LLL) skills in healthcare professionals are faced with a multitude of definitions and operationalizations of the concept of LLL. A systematic review was performed to analyze the methodological quality and content of instruments measuring LLL for professionals.
Methods
A systematic search of literature published until October 2023 in the electronic databases MEDLINE, CINAHL, PsycINFO, ERIC, Sociological Abstracts, EMBASE, and Web of Science was conducted. English articles describing the development, validation or use of an instrument measuring lifelong learning for professionals working in a professional context were included. A data extraction form was developed to evaluate the content and methodological quality of the instruments. The STORIES statement was used to support reporting this review.
Results
The search revealed 85 articles on 18 questionnaires, no qualitative instruments were found. The instruments covered a range of settings, for example the Jefferson Scale of Physician LLL (JSPLL) covered healthcare and the Effective LLL Inventory (ELLI) covered education. Most instruments provided evidence on content validity and internal consistency, other aspects of validity were examined less frequently. Furthermore, the way that LLL was defined varied greatly, also great variety in the constructs that were defined in the instruments was found. Most instruments lacked a clear description of how the dimensions and items were formalized.
Conclusions
There is a need for LLL instruments that provide more evidence on their validity and put greater emphasis on the development of the definition and operationalization of LLL. Furthermore, there is a need for a better understanding of how to interpret and use the results of the instruments. It is recommended to take a critical look at these constructs before selecting an instrument. This will help all those involved in the training and working environment of healthcare professionals in evaluating lifelong learning skills in their context.
Registration
PROSPERO registration number: CRD42019134804
AI tools in radiology are revolutionising the diagnosis, evaluation, and management of patients. However, there is a major gap between the large number of developed AI tools and those translated into daily clinical practice, which can be primarily attributed to limited usefulness and trust in current AI tools. Instead of technically driven development, little effort has been put into value-based development to ensure AI tools will have a clinically relevant impact on patient care.
An iterative comprehensive value evaluation process covering the complete AI tool lifecycle should be part of radiology AI development. For value assessment of health technologies, health technology assessment (HTA) is an extensively used and comprehensive method. While most aspects of value covered by HTA apply to radiology AI, additional aspects, including transparency, explainability, and robustness, are unique to radiology AI and crucial in its value assessment. Additionally, value assessment should already be included early in the design stage to determine the potential impact and subsequent requirements of the AI tool. Such early assessment should be systematic, transparent, and practical to ensure all stakeholders and value aspects are considered. Hence, early value-based development by incorporating early HTA will lead to more valuable AI tools and thus facilitate translation to clinical practice.
Clinical relevance statement
This paper advocates for the use of early value-based assessments. These assessments promote a comprehensive evaluation on how an AI tool in development can provide value in clinical practice and thus help improve the quality of these tools and the clinical process they support.
Key Points
Value in radiology AI should be perceived as a comprehensive term including health technology assessment domains and AI-specific domains.
Incorporation of an early health technology assessment for radiology AI during development will lead to more valuable radiology AI tools.
Comprehensive and transparent value assessment of radiology AI tools is essential for their widespread adoption.
Objective
To evaluate whether surgical margin status, alongside existing postoperative risk indicators, improves the identification of bladder cancer patients who may benefit from adjuvant therapy following radical cystectomy (RC).
Methods
In this nationwide cohort study, patients aged ≥18 years diagnosed with muscle‐invasive bladder cancer (MIBC) without nodal or distant metastasis (cT2‐4aN0/xM0) between November 2017 and December 2020 who underwent RC were selected from the Netherlands Cancer Registry. Detailed information on surgical margin status was obtained through linkage with the Dutch central pathology database, Palga. Overall survival (OS) and progression‐free survival (PFS) were assessed using the Kaplan–Meier method. Multivariable Cox regression analysis was performed to assess the independent prognostic effect of positive surgical margins (carcinoma in situ (CIS)] only or invasive carcinoma) on PFS and OS.
Results
We identified 1445 MIBC patients treated by RC (53% open, 47% robot‐assisted), of whom 135 (9.3%) had positive surgical margins (10.7% in the open and 7.7% in the robot‐assisted cohort). In the entire cohort, OS was 79% and 60% at 12 and 48 months after RC, respectively. PFS was 70% and 61% at 12 and 24 months, respectively. Multivariable Cox regression showed worse PFS (hazard ratio (HR) 2.13, 95% confidence interval (CI) 1.67–2.72) and OS (HR 2.02, 95% CI 1.58–2.58) in patients with surgical margins with invasive carcinoma vs patients with negative margins. Patients with only CIS in the margins also appeared to have worse PFS (HR 1.60, 95% CI 1.00–2.58) but these results were not statistically significant. No difference was found for OS (HR 1.30, 95% CI 0.80–2.12).
Conclusion
Positive margins should be considered a ‘high risk feature, as they result in increased risk of disease progression and impaired survival outcomes. These findings support further investigation of the potential efficacy of adjuvant therapy (i.e., radiotherapy and systemic therapy) among patients with positive surgical margins.
To compare echocardiographic regional longitudinal strain with quantitative coronary angiography and assess temporal changes in regional strain in patients with STEMI and multivessel coronary artery disease. Thirty-two patients with STEMI and multivessel coronary artery disease underwent coronary angiography with 3D quantification and baseline echocardiography. Regional longitudinal strain was measured as the average strain of three adjacent myocardial segments (RLS-3S) with the most impaired strain values. Forty-one stenosed vessels were identified (9 LAD [19%], 21 LCx [50%] and 11 RCA [31%]). RLS-3S did not correlate with diameter stenosis, area stenosis or minimal luminal diameter. Receiver operating curve analysis of RLS-3S for hemodynamic significant lesions (defined as positive fractional flow reserve or composite of ≥ 70% diameter stenosis and minimal luminal diameter < 1.2 mm) demonstrated an area under the curve of 0.63 (95% CI 0.45–0.76) with an optimal cut-off value of < 9.8%. Sensitivity and specificity of RLS-3S was 86% (42–100) and 48% (31–66). RLS-3S < 9.8% at baseline in remote myocardium subtended by the stenosed coronary vessel predicted benefit from percutaneous coronary intervention in terms of regional functional recovery. RLS-3S does not correlate with individual coronary angiography measures and moderately predicts hemodynamically significant lesions. RLS-3S could be used to predict regional functional recovery after additional revascularization.
Graphical abstract
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