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Sökning: L773:0140 6736 OR L773:1474 547X > (2020-2021)

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1.
  • King, Carina, et al. (författare)
  • COVID-19—a very visible pandemic
  • 2020
  • Ingår i: The Lancet. - : Elsevier. - 0140-6736 .- 1474-547X. ; 396:10248, s. 15-15
  • Tidskriftsartikel (refereegranskat)
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2.
  • Erlinge, David, et al. (författare)
  • Identification of vulnerable plaques and patients by intracoronary near-infrared spectroscopy and ultrasound (PROSPECT II) : a prospective natural history study
  • 2021
  • Ingår i: The Lancet. - : Elsevier. - 0140-6736 .- 1474-547X. ; 397:10278, s. 985-995
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Near-infrared spectroscopy (NIRS) and intravascular ultrasound are promising imaging modalities to identify non-obstructive plaques likely to cause coronary-related events. We aimed to assess whether combined NIRS and intravascular ultrasound can identify high-risk plaques and patients that are at risk for future major adverse cardiac events (MACEs).Methods: PROSPECT II is an investigator-sponsored, multicentre, prospective natural history study done at 14 university hospitals and two community hospitals in Denmark, Norway, and Sweden. We recruited patients of any age with recent (within past 4 weeks) myocardial infarction. After treatment of all flow-limiting coronary lesions, three-vessel imaging was done with a combined NIRS and intravascular ultrasound catheter. Untreated lesions (also known as non-culprit lesions) were identified by intravascular ultrasound and their lipid content was assessed by NIRS. The primary outcome was the covariate-adjusted rate of MACEs (the composite of cardiac death, myocardial infarction, unstable angina, or progressive angina) arising from untreated non-culprit lesions during follow-up. The relations between plaques with high lipid content, large plaque burden, and small lumen areas and patient-level and lesion-level events were determined. This trial is registered with ClinicalTrials.gov, NCT02171065.Findings: Between June 10, 2014, and Dec 20, 2017, 3629 non-culprit lesions were characterised in 898 patients (153 [17%] women, 745 [83%] men; median age 63 [IQR 55-70] years). Median follow-up was 3.7 (IQR 3.0-4.4) years. Adverse events within 4 years occurred in 112 (13.2%, 95% CI 11.0-15.6) of 898 patients, with 66 (8.0%, 95% CI 6.2-10.0) arising from 78 untreated non-culprit lesions (mean baseline angiographic diameter stenosis 46.9% [SD 15.9]). Highly lipidic lesions (851 [24%] of 3500 lesions, present in 520 [59%] of 884 patients) were an independent predictor of patient-level non-culprit lesion-related MACEs (adjusted odds ratio 2.27, 95% CI 1.25-4.13) and nonculprit lesion-specific MACEs (7.83, 4.12-14.89). Large plaque burden (787 [22%] of 3629 lesions, present in 530 [59%] of 898 patients) was also an independent predictor of non-culprit lesion-related MACEs. Lesions with both large plaque burden by intravascular ultrasound and large lipid-rich cores by NIRS had a 4-year non-culprit lesion-related MACE rate of 7.0% (95% CI 4.0-10.0). Patients in whom one or more such lesions were identified had a 4-year non-culprit lesion-related MACE rate of 13.2% (95% CI 9.4-17.6).Interpretation: Combined NIRS and intravascular ultrasound detects angiographically non-obstructive lesions with a high lipid content and large plaque burden that are at increased risk for future adverse cardiac outcomes.
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  • Figtree, Gemma A., et al. (författare)
  • Mortality in STEMI patients without standard modifiable risk factors : a sex-disaggregated analysis of SWEDEHEART registry data
  • 2021
  • Ingår i: The Lancet. - : ELSEVIER SCIENCE INC. - 0140-6736 .- 1474-547X. ; 397:10279, s. 1085-1094
  • Tidskriftsartikel (refereegranskat)abstract
    • Background In cardiovascular disease, prevention strategies targeting standard modifiable cardiovascular risk factors (SMuRFs; hypertension, diabetes, hypercholesterolaemia, and smoking) are crucial; however, myocardial infarction in the absence of SMuRFs is not infrequent. The outcomes of individuals without SMuRFs are not well known. Methods We retrospectively analysed adult patients with first-presentation ST-elevation myocardial infarction (STEMI) using data from the Swedish myocardial infarction registry SWEDEHEART. Clinical characteristics and outcomes of adult patients (age >= 18 years) with and without SMuRFs were examined overall and by sex. Patients with a known history of coronary artery disease were excluded. The primary outcome was all-cause mortality at 30 days after STEMI presentation. Secondary outcomes included cardiovascular mortality, heart failure, and myocardial infarction at 30 days. Endpoints were also examined up to discharge, and to the end of a 12-year follow-up. Multivariable logistic regression models were used to compare in-hospital mortality, and Cox-proportional hazard models and Kaplan-Meier analysis for long-term outcomes. Findings Between Jan 1, 2005, and May 25, 2018, 9228 (14.9%) of 62 048 patients with STEMI had no SMuRFs reaching diagnostic thresholds. Median age was similar between patients with SMuRFs and patients without SMuRFs (68 years [IQR 59-78]) vs 69 years [60-78], p<0.0001). SMuRF-less patients had a similar rate of percutaneous coronary intervention to those with at least one modifiable risk factor, but were significantly less likely to receive statins, angiotensin converting enzyme inhibitors (ACEIs) or angiotensin receptor blockade (ARB), or beta-blockers at discharge. By 30 days after presentation, all-cause mortality was significantly higher in SMuRF-less patients (hazard ratio 1.47 [95% CI 1.37-1.57], p<0.0001). SMuRF-less women had the highest 30-day mortality (381 [17.6%] of 2164), followed by women with SMuRFs (2032 [11.1%] of 18 220), SMuRF-less men (660 [9.3%] of 7064), and men with SMuRFs (2117 [6.1%] of 34 600). The increased risk of 30-day all-cause mortality in SMuRF-less patients remained significant after adjusting for age, sex, left ventricular ejection fraction, creatinine, and blood pressure, but was attenuated on inclusion of pharmacotherapy prescription (ACEI or ARB, beta-blocker, or statin) at discharge. Additionally, SMuRF-less patients had a significantly higher rate of in-hospital all-cause mortality than patients with one or more SMuRF (883 [9.6%] vs 3411 [6.5%], p<0.0001). Myocardial infarction and heart failure at 30 days were lower in SMuRF-less patients. All-cause mortality remained increased in the SMuRF-less group for more than 8 years in men and up to the 12-year endpoint in women. Interpretation Individuals who present with STEMI in the absence of SMuRFs have a significantly increased risk of all-cause mortality, compared with those with at least one SMuRF, which was particularly evident in women. The increased early mortality rates are attenuated after adjustment for use of guideline-indicated treatments, highlighting the need for evidence-based pharmacotherapy during the immediate post-infarct period irrespective of perceived low risk. Copyright (C) 2021 Elsevier Ltd. All rights reserved.
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4.
  • Halliday, Alison, et al. (författare)
  • Second asymptomatic carotid surgery trial (ACST-2) : a randomised comparison of carotid artery stenting versus carotid endarterectomy
  • 2021
  • Ingår i: The Lancet. - 0140-6736. ; 398:10305, s. 1065-1073
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Among asymptomatic patients with severe carotid artery stenosis but no recent stroke or transient cerebral ischaemia, either carotid artery stenting (CAS) or carotid endarterectomy (CEA) can restore patency and reduce long-term stroke risks. However, from recent national registry data, each option causes about 1% procedural risk of disabling stroke or death. Comparison of their long-term protective effects requires large-scale randomised evidence.METHODS: ACST-2 is an international multicentre randomised trial of CAS versus CEA among asymptomatic patients with severe stenosis thought to require intervention, interpreted with all other relevant trials. Patients were eligible if they had severe unilateral or bilateral carotid artery stenosis and both doctor and patient agreed that a carotid procedure should be undertaken, but they were substantially uncertain which one to choose. Patients were randomly allocated to CAS or CEA and followed up at 1 month and then annually, for a mean 5 years. Procedural events were those within 30 days of the intervention. Intention-to-treat analyses are provided. Analyses including procedural hazards use tabular methods. Analyses and meta-analyses of non-procedural strokes use Kaplan-Meier and log-rank methods. The trial is registered with the ISRCTN registry, ISRCTN21144362.FINDINGS: Between Jan 15, 2008, and Dec 31, 2020, 3625 patients in 130 centres were randomly allocated, 1811 to CAS and 1814 to CEA, with good compliance, good medical therapy and a mean 5 years of follow-up. Overall, 1% had disabling stroke or death procedurally (15 allocated to CAS and 18 to CEA) and 2% had non-disabling procedural stroke (48 allocated to CAS and 29 to CEA). Kaplan-Meier estimates of 5-year non-procedural stroke were 2·5% in each group for fatal or disabling stroke, and 5·3% with CAS versus 4·5% with CEA for any stroke (rate ratio [RR] 1·16, 95% CI 0·86-1·57; p=0·33). Combining RRs for any non-procedural stroke in all CAS versus CEA trials, the RR was similar in symptomatic and asymptomatic patients (overall RR 1·11, 95% CI 0·91-1·32; p=0·21).INTERPRETATION: Serious complications are similarly uncommon after competent CAS and CEA, and the long-term effects of these two carotid artery procedures on fatal or disabling stroke are comparable.FUNDING: UK Medical Research Council and Health Technology Assessment Programme.
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  • Mosleh, Marwan, PhD researcher, 1975-, et al. (författare)
  • Perceptions of health-care professionals about quality of care and barriers to management of war injuries in Gaza Strip : A qualitative analysis
  • 2021
  • Ingår i: The Lancet. - : Elsevier. - 0140-6736 .- 1474-547X. ; 398:Supplement 1, July 2021, s. S37-
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: War-related injury is a growing clinical and public health concern in occupied Palestinian territory, especially in the Gaza Strip. However, little research has been done into the quality of care and management of war injuries in public hospitals. We explored the perceptions of health-care workers about these factors in Palestinian health-care facilities in Gaza. METHODS: This was a qualitative descriptive study. Data were obtained in four focus group discussions attended at public health facilities by 30 purposively selected health-care providers, comprising 14 head surgeons, and 16 head nurses, aged 38-55 years. A semi-structured topic guide was developed by the authors for the study based on earliest literature, and was critically reviewed by a panel of experts to ensure the trustworthiness of the qualitative guide and to minimise complexity and enhance clarity of the questions for participants. Audio recordings of discussions were transcribed verbatim, translated, and analysed with a thematic analysis approach. The study was approved by the Palestinian Health Research Council and facilitated by the Ministry of Health. FINDINGS: A consensus was expressed that, despite some positive aspects in the system, fundamental changes and essential improvements were needed to advance the care and facilitation of war injury management. Some respondents had serious concerns about the health-care system, suggesting that it needs to be comprehensively rebuilt. Unanimous views were expressed about the important barriers to effective management and quality of care: shortages of resources, medicines, and funding; underuse or absence of specific and unified clinical practice guidelines; no official commitment by the Ministry of Health to adopt updated clinical guidelines; few incentives and poor motivation, poor communications; blockade and siege; division of health systems in the country; overcrowding of patients with war injuries in hospitals with limited capacity; spreading of infection due to poor cleanliness; shortages in fuel and power supply; and low wages, which negatively affected staff motivation. Respondents also reported inadequate sharing of care and cooperation between different health-care facilities. INTERPRETATION: The perceptions about barriers to management of war injuries and the quality of care provided were similar across Palestinian health-care facilities in the Gaza strip. Our findings suggest that fundamental changes and comprehensive reform of the health-care system are needed to make the care of patients with war injuries more effective and efficient. One of the important strengths of this study is that it addressed the perspective and opinions of different key health professionals, which made it possible gain deeper and better understanding of how war injuries are managed in the Palestinian health system. In addition, the outcomes of the study were based on diverse information. However, the analysis of the qualitative data may represent challenges, and be more complicated and time consuming than a quantitative approach.
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