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Coronary CT angiography-guided management of patients with stable chest pain: 10-year outcomes from the SCOT-HEART randomised controlled trial in Scotland
The Scottish Computed Tomography of the Heart (SCOT-HEART) trial demonstrated that management guided by coronary CT angiography (CCTA) improved the diagnosis, management, and outcome of patients with stable chest pain. We aimed to assess whether CCTA-guided care results in sustained long-term improvements in management and outcomes.
SCOT-HEART was an open-label, multicentre, parallel group trial for which patients were recruited from 12 outpatient cardiology chest pain clinics across Scotland. Eligible patients were aged 18–75 years with symptoms of suspected stable angina due to coronary heart disease. Patients were randomly assigned (1:1) to standard of care plus CCTA or standard of care alone. In this prespecified 10-year analysis, prescribing data, coronary procedural interventions, and clinical outcomes were obtained through record linkage from national registries. The primary outcome was coronary heart disease death or non-fatal myocardial infarction on an intention-to-treat basis. This trial is registered at ClinicalTrials.gov (NCT01149590) and is complete.
Between Nov 18, 2010, and Sept 24, 2014, 4146 patients were recruited (mean age 57 years [SD 10], 2325 [56·1%] male, 1821 [43·9%] female), with 2073 randomly assigned to standard care and CCTA and 2073 to standard care alone. After a median of 10·0 years (IQR 9·3–11·0), coronary heart disease death or non-fatal myocardial infarction was less frequent in the CCTA group compared with the standard care group (137 [6·6%] vs 171 [8·2%]; hazard ratio [HR] 0·79 [95% CI 0·63–0·99], p=0·044). Rates of all-cause, cardiovascular, and coronary heart disease death, and non-fatal stroke, were similar between the groups (p>0·05 for all), but non-fatal myocardial infarctions (90 [4·3%] vs 124 [6·0%]; HR 0·72 [0·55–0·94], p=0·017) and major adverse cardiovascular events (172 [8·3%] vs 214 [10·3%]; HR 0·80 [0·65–0·97], p=0·026) were less frequent in the CCTA group. Rates of coronary revascularisation procedures were similar (315 [15·2%] vs 318 [15·3%]; HR 1·00 [0·86–1·17], p=0·99) but preventive therapy prescribing remained more frequent in the CCTA group (831 [55·9%] of 1486 vs 728 [49·0%] of 1485 patients with available data; odds ratio 1·17 [95% CI 1·01–1·36], p=0·034).
After 10 years, CCTA-guided management of patients with stable chest pain was associated with a sustained reduction in coronary heart disease death or non-fatal myocardial infarction. Identification of coronary atherosclerosis by CCTA improves long-term cardiovascular disease prevention in patients with stable chest pain.
The Chief Scientist Office of the Scottish Government Health and Social Care Directorates, Edinburgh and Lothian's Health Foundation Trust, British Heart Foundation, and Heart Diseases Research Fund.
Journal Article
CT or Invasive Coronary Angiography in Stable Chest Pain
In this multicenter trial, 3561 patients with stable chest pain at intermediate risk for obstructive coronary artery disease were randomly assigned to undergo CT or invasive coronary angiography. Over 3.5 years of follow-up, there was no significant between-group difference in the risk of major adverse cardiovascular events. Major procedure-related complications were less common with CT.
Journal Article
Coronary CT Angiography and 5-Year Risk of Myocardial Infarction
In a randomized trial, patients with chest pain underwent a standard diagnostic evaluation with or without coronary CT angiography (CTA). The group assigned to CTA had a lower rate of death from coronary heart disease or nonfatal myocardial infarction at 5 years.
Journal Article
Effect of Diaphragmatic Breathing Exercise, Jacobson’s Relaxation Technique and Dynamic Neuromuscular Stabilization on Gastrointestinal and Psychological Causes of Noncardiac Chest Pain: A Randomized Controlled Trial
Objective: Despite the availability of studies, there is a lack of available literature on the treatment of psychological and gastrointestinal causes of noncardiac chest pain (NCCP). Physiotherapeutic techniques involving diaphragmatic breathing, Jacobson’s relaxation and dynamic neuromuscular stabilization (DNS) could address these causes through the activation of parasympathetic system. Hence, this study aims to evaluate the combined effect of diaphragmatic breathing, Jacobson’s relaxation and DNS along with pharmacological therapy on patients with gastrointestinal and psychological causes of NCCP. Design: Randomized controlled trial. Setting: Cardiology OPD of a tertiary care hospital. Subjects: Eighty‐eight subjects with NCCP. Methods: The intervention group received diaphragmatic breathing, Jacobson’s relaxation technique, DNS and pharmacological treatment for 4 weeks. The control group was given pharmacological treatment with patient education. The Beck Depression Inventory (BDI) score, Hamilton Depression Rating Scale (HDRS) score, gastroesophageal reflux disease (GERD) questionnaire score and Numerical Pain Rating Scale (NPRS) score were measured at baseline and after 4 weeks of intervention. Results: The baseline characteristics and outcome measures were assessed, and no significant differences were noted in their mean values ( p > 0.05). After 4 weeks of intervention, a statistically significant difference was observed in BDI, HDRS, GERD questionnaire score and NPRS in both the groups ( p < 0.001). However, the GERD questionnaire and NPRS showed statistically significant decrease in the intervention group (GERD questionnaire: 28.39 ± 9.74 and NPRS: 4.57 ± 0.91) compared with the control group (GERD questionnaire: 35.54 ± 12.23 and NPRS: 4.95 ± 0.96) with p < 0.05. Conclusion: The diaphragmatic breathing exercises, Jacobson’s relaxation technique and DNS are beneficial for reducing GERD symptoms and pain in patients with NCCP. These techniques are safe and cost‐effective treatment for addressing the psychological and gastrointestinal causes of NCCP. These can be incorporated along with the pharmacological treatment to enhance the outcomes. However, future researches with long‐term follow‐ups are required. Trial Registration: Clinical Trials Registry ‐ India: CTRI/2025/02/081294
Journal Article
Design and rationale of “a pragmatic approach to the investigation of stable chest pain: A UK, multicenter, randomized trial to assess patient outcomes, quality of life and cost effectiveness (CE-MARC 3)”
The optimal noninvasive diagnostic imaging strategy for patients with suspected coronary artery disease (CAD) is widely debated. Computed Tomography Coronary Angiography (CTCA) and functional imaging are both guideline-recommended, although comparative effectiveness in patients with intermediate-high pretest likelihood (PTL) is limited. Primary Hypothesis: We aim to establish if a personalized investigation strategy compared to CTCA first-line for allcomers, leads to improved patient outcomes.
In a multi-center, randomized trial, 4,000 patients newly referred for the investigation of suspected cardiac chest pain will be recruited and randomized (1:1) to either personalized care (first-line CTCA or functional imaging based on PTL) or CTCA first-line for allcomers. The primary endpoint is time to a composite of cardiovascular death, myocardial infarction, or unobstructed coronary arteries on invasive angiography. Follow up will occur at 6 and 12 months and then annually for up to 4 years for symptoms, quality of life, and guideline directed medical therapy usage. A cost-effectiveness analysis will be performed capturing impacts on health, measured in quality adjusted life years (QALYs) using the EQ-5D-5L, and costs (including investigations, procedures, procedural complications, medical treatment costs and any future hospital admissions) calculated. It will be possible for the whole trial pathway to be conducted remotely with the option to perform non-face-to-face consent, randomization, and follow-up data collection including health-related quality of life.
About 20 UK sites.
First site opened April 2022 and recruitment is due to complete by July 2025, with an average recruitment of 135 patients a month to date.
About 3,407 patients recruited and randomized by the end of February 2025
This trial will address whether, in patients with suspected cardiac chest pain, a strategy of personalized investigation according to pretest likelihood (PTL), compared to CTCA for allcomers, leads to improved patient outcomes, quality of life and cost-effectiveness.
Journal Article
Early computed tomography coronary angiography in patients with suspected acute coronary syndrome: randomised controlled trial
AbstractObjectivesTo establish if the use of early computed tomography (CT) coronary angiography improves one year clinical outcomes in patients presenting to the emergency department with acute chest pain and at intermediate risk of acute coronary syndrome and subsequent clinical events.DesignRandomised controlled trial.Setting37 hospitals in the UK.ParticipantsAdults with suspected or a provisional diagnosis of acute coronary syndrome and one or more of previous coronary heart disease, raised levels of cardiac troponin, or abnormal electrocardiogram.InterventionsEarly CT coronary angiography and standard of care compared with standard of care only.Main outcome measuresPrimary endpoint was all cause death or subsequent type 1 or 4b myocardial infarction at one year.ResultsBetween 23 March 2015 and 27 June 2019, 1748 participants (mean age 62 years (standard deviation 13), 64% men, mean global registry of acute coronary events (GRACE) score 115 (standard deviation 35)) were randomised to receive early CT coronary angiography (n=877) or standard of care only (n=871). Median time from randomisation to CT coronary angiography was 4.2 (interquartile range 1.6-21.6) hours. The primary endpoint occurred in 51 (5.8%) participants randomised to CT coronary angiography and 53 (6.1%) participants who received standard of care only (adjusted hazard ratio 0.91 (95% confidence interval 0.62 to 1.35), P=0.65). Invasive coronary angiography was performed in 474 (54.0%) participants randomised to CT coronary angiography and 530 (60.8%) participants who received standard of care only (adjusted hazard ratio 0.81 (0.72 to 0.92), P=0.001). There were no overall differences in coronary revascularisation, use of drug treatment for acute coronary syndrome, or subsequent preventive treatments between the two groups. Early CT coronary angiography was associated with a slightly longer time in hospital (median increase 0.21 (95% confidence interval 0.05 to 0.40) days from a median hospital stay of 2.0 to 2.2 days).ConclusionsIn intermediate risk patients with acute chest pain and suspected acute coronary syndrome, early CT coronary angiography did not alter overall coronary therapeutic interventions or one year clinical outcomes, but reduced rates of invasive angiography while modestly increasing length of hospital stay. These findings do not support the routine use of early CT coronary angiography in intermediate risk patients with acute chest pain and suspected acute coronary syndrome.Trial registrationISRCTN19102565, NCT02284191.
Journal Article