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Evolving operator practices reduced patient radiation dose in interventional cardiology: Trends in a single center 在介入心脏病学中,不断发展的操作员实践降低了患者的辐射剂量:单一中心的趋势。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-18 DOI: 10.1016/j.ahj.2025.01.007
Stephen Balter PhD , Jeffrey Moses MD , Kais Hyasat MBBS , Michael Collins MD , Ajay Kirtane MD , Margaret McEntegart MD, PhD , Leroy E Rabbani MD , Gasmelseed Y Ahmed MD, PhD

Background

This retrospective study addresses the role of operator and fluoroscopy equipment in reducing patient radiation exposure in the Cath lab.

Methods

Data from 99,400 procedures performed in our institution between 2007 and 2019 were reviewed. Dosimetric parameters included reference point air kerma (Ka,r), Kerma Area Product (PKA), fluoroscopic time, and contrast volume. Results are characterized by their 50th and 99th percentiles. Data from a subset of fluoroscopes that were in continuous use and a subset of operators who used the same “continuous” fluoroscope in every year of the study were also analyzed.

Results

For all procedures, median Ka,r declined by 63%, from 1.5 to 0.5Gy; 99th percentiles declined by 44%, from 8.6 to 4.8Gy. For the 3 “continuous fluoroscopes” median Ka,r declined by 60% from 1.6 to 0.6Gy; 99th percentile by 52% from 9.1 to 4.4Gy. The all-procedure median contrast volume declined by 53%, from 150 to 70ml; 99th percentile by 42% from 600 to 350ml. The all-procedure median fluoroscopy time declined by 2%; the 99th percentile increased by 32%. In the continuous subset, median fluoroscopy time declined by 20%; 99th percentile increased by 5%. For the operator's subset, the median Ka,r declined by 43% (P = .0362); the 99th percentile decreased by 22% (P = .0481). Substantial radiation dose procedures decreased from 7% to 0.8% of the procedure volume.

Conclusions

There was a significant reduction in patient radiation (Ka,r and PKA) and contrast volume during the study period driven by systematic and operator practice changes.
背景:本回顾性研究探讨了操作人员和透视设备在减少导管实验室患者辐射暴露中的作用。方法:回顾我院2007年至2019年99,400例手术的数据。剂量学参数包括参考点空气克玛(Ka,r)、克玛面积积(PKA)、透视时间和造影剂体积。结果以其第50和99百分位数表示。研究还分析了连续使用的一部分透视镜和每年使用相同“连续”透视镜的操作员的数据。结果:在所有手术中,中位Ka,r下降了63%,从1.5 Gy降至0.5 Gy;第99百分位数下降了44%,从8.6 Gy降至4.8 Gy。对于三种“连续透视仪”的中位Ka,r从1.6 Gy下降到0.6 Gy,下降了60%;第99百分位数从9.1 Gy上升到4.4 Gy,上升了52%。全程序中位造影剂体积下降53%,从150毫升降至70毫升;从600毫升到350毫升,第99百分位数减少了42%。全程序中位透视时间减少了2%;第99个百分位数增长了32%。在连续亚组中,中位透视时间下降了20%;第99百分位增长了5%。对于操作者的子集,中位数Ka,r下降了43% (p=0.0362);第99百分位下降了22% (p=0.0481)。实际辐射剂量程序从程序体积的7%下降到0.8%。结论:在研究期间,由于系统和操作人员操作的改变,患者的辐射(Ka,r和PKA)和造影剂体积显著降低。
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引用次数: 0
Incidence and outcomes of prosthetic valve endocarditis in adults with congenital heart disease 成人先天性心脏病人工瓣膜心内膜炎的发病率和预后。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-17 DOI: 10.1016/j.ahj.2025.01.005
Andrea R. Hsu BS , Snigdha Karnakoti MBBS , Ahmed T. Abdelhalim MBBS , William R. Miranda MD , Heidi M. Connolly MD , Joseph A. Dearani MD , Daniel C. DeSimone MD , Alexander C. Egbe MD, MPH

Background

Patients with congenital heart disease (CHD) often require prosthetic valve implantation, increasing their lifetime risk of developing prosthetic valve endocarditis (PVE). The purpose of this study was to determine the incidence, risk factors, and outcomes of PVE in adults with CHD.

Method

Retrospective cohort study of adults with CHD and prior prosthetic valve implantation (2003-2023). Patients diagnosed with PVE were designated as the PVE group, while the patients without PVE were designated as the reference group.

Results

Of 9161 patients, 3150 (34%) had prosthetic valves. Among the patients with prosthetic valve, 86 (2.7%) developed PVE, yielding an incidence of 5.2 (95% confidence interval [CI] 4.8-1-5.6) events per 1000 patient-years. Of the 86 patients with PVE, the average age at the time of PVE diagnosis was 35 ± 9 years, the average interval between prosthetic valve implantation and PVE was 91 ± 27 months, and mean duration of follow-up with11.6 ± 4.9 years. The risk factors for PVE were male sex, younger age, type 2 diabetes, multiple prosthetic valves, and Melody bioprosthetic valve implantation. PVE was associated with more than a 2-fold increase in all-cause mortality (adjusted hazard ratio 2.21, 95% CI 1.33-3.68, P = .002), after adjustment for demographic/anatomic indices, and comorbidities. Of 86 patients with PVE, 21 (24%) died during follow-up. The 30-day, 1-year, and 5-year mortality after diagnosis of PVE was 1.6%, 12% and 15%, respectively. Of 86 patients, 39 (45%) developed 47 PVE-related complications (perivalvular abscess[(n = 21], and septic emboli [n = 26]). PVE-related complications were associated with all-cause mortality.

Conclusions

PVE was common in CHD patients with prosthetic valves and was associated with all-cause mortality. These findings highlight the prognostic implications of prosthetic valve implantation in patients with CHD, and the need for new criteria for risk stratification in order to improve outcomes.
背景:先天性心脏病(CHD)患者经常需要人工瓣膜植入术,这增加了他们一生中发生人工瓣膜心内膜炎(PVE)的风险。本研究的目的是确定成人冠心病患者PVE的发病率、危险因素和结局。方法:回顾性队列研究2003-2023年成人冠心病患者人工心脏瓣膜置换术。诊断为PVE的患者为PVE组,未诊断为PVE的患者为参照组。结果:9161例患者中,3150例(34%)采用人工瓣膜。在植入人工瓣膜的患者中,86例(2.7%)发生PVE,发生率为5.2(95%可信区间[CI] 4.8-1-5.6) / 1000患者年。86例PVE患者诊断时平均年龄为35±9岁,人工瓣膜置入术至PVE的平均间隔为91±27个月,平均随访时间为11.6±4.9年。发生PVE的危险因素为男性、低龄、2型糖尿病、多瓣膜置换术和Melody生物瓣膜置换术。经人口统计学/解剖学指标和合并症校正后,PVE与全因死亡率增加2倍以上相关(校正风险比2.21,95% CI 1.33-3.68, p=0.002)。86例PVE患者中,21例(24%)在随访期间死亡。PVE诊断后30天、1年和5年死亡率分别为1.6%、12%和15%。86例患者中,39例(45%)出现47例pve相关并发症(瓣膜周围脓肿[n= 21],脓毒性栓塞[n=26])。pve相关并发症与全因死亡率相关。结论:PVE在植入人工瓣膜的冠心病患者中很常见,并与全因死亡率相关。这些发现强调了人工瓣膜置入术对冠心病患者预后的影响,以及需要新的风险分层标准以改善预后。
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引用次数: 0
Individualized transfusion decisions to minimize adverse cardiovascular outcomes in patients with acute myocardial infarction and anemia 对急性心肌梗死和贫血患者进行个体化输血以减少不良心血管结局。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-17 DOI: 10.1016/j.ahj.2025.01.009
Gerard T. Portela PhD , Gregory Ducrocq MD , Marnie Bertolet PhD , John H. Alexander MD, MHS , Shaun G. Goodman MD , Simone Glynn MD, MPH, MSc , Jordan B. Strom MD, MSc , Sonja A. Swanson ScD , Gilles Lemesle MD , Sunil V. Rao MD , Meechai Tessalee MD , Tamar S. Polonsky MD, MSCI , Michael Goldfarb MD, MSc , Jay H. Traverse MD, ME , Lynne Uhl MD , Brandon M. Herbert MPH, PhD , Johanne Silvain MD, PhD , Jeffrey L. Carson MD , Maria M. Brooks PhD , MINT Trial Investigators

Background

Risk-benefit tradeoffs between restrictive versus liberal red blood cell transfusion strategies may vary across individuals. This exploratory analysis aimed to derive and evaluate individualized treatment effects of defined transfusion strategies in patients with acute MI and anemia with the goal of minimizing adverse cardiovascular outcomes.

Methods

This study analyzed 3,447 (98.4%) patients randomized in the MINT (Myocardial Ischemia and Transfusion) trial between April 2017 to April 2023. Outcomes for this analysis included 30-day death or recurrent MI, death, and major adverse cardiovascular events (MACE, a composite of death, MI, stroke, and ischemia-driven unscheduled revascularization). Machine learning methods were used to identify baseline patient characteristics that informed the individualized treatment effect of a restrictive versus liberal transfusion strategy for each patient. The expected population risk of an outcome under a scenario in which patients received their optimal treatment, as indicated by the individualized treatment effect, was contrasted with expected risks for universally applying a restrictive strategy or a liberal strategy to all patients.

Results

Baseline characteristics did not inform individualized treatment effects on 30-day death and death or MI, suggesting minimal heterogeneity in treatment effect on these outcomes. An algorithm for estimating the individualized treatment effect on 30-day MACE included 12 baseline factors. If all patients received the optimal treatment as indicated by their estimated individualized treatment effect, the predicted risk of 30-day MACE in the sample population was 15.2% (95% CI 14.2%-16.2%). This corresponded to 4.0 (difference: −4.0%, 95% CI −5.8, −2.1) and 2.3 (difference: −2.3%, 95% CI −3.7, −0.9) percentage point risk reductions compared to applying a restrictive or liberal strategy to everyone respectively.

Conclusions

The MINT trial average treatment effect, favoring a liberal strategy, may be optimal to minimize risk of 30-day death and death or MI for acute MI patients with anemia represented in the MINT sample as no individualized treatment effects were estimated on these outcomes. However, individualized transfusion strategy decisions have potential to reduce risk of 30-day MACE. External validation of the MACE algorithm is required before clinical use.

Trial Registration

ClinicalTrials.gov, NCT02981407, https://clinicaltrials.gov/study/NCT02981407.
背景:限制与自由红细胞输血策略之间的风险-收益权衡可能因个体而异。本探索性分析旨在得出并评估明确的输血策略对急性心肌梗死和贫血患者的个体化治疗效果,以最大限度地减少不良心血管结局。方法:本研究分析了2017年4月至2023年4月在MINT(心肌缺血和输血)试验中随机分配的3447例(98.4%)患者。该分析的结果包括30天死亡或复发性心肌梗死、死亡和主要不良心血管事件(MACE,死亡、心肌梗死、中风和缺血驱动的非计划性血运重建的复合)。使用机器学习方法来确定基线患者特征,这些特征为每位患者提供了限制性和自由输血策略的个性化治疗效果。个体治疗效果表明,在患者接受最佳治疗的情况下,结果的预期人群风险与对所有患者普遍应用限制性策略或自由策略的预期风险进行对比。结果:基线特征并没有告诉个体化治疗对30天死亡和死亡或心肌梗死的影响,表明治疗对这些结果的影响具有最小的异质性。估计30天MACE个体化治疗效果的算法包括12个基线因素。如果所有患者都接受了根据其估计的个体化治疗效果所指示的最佳治疗,则样本人群中30天MACE的预测风险为15.2% (95% CI 14.2%至16.2%)。与对每个人分别应用限制性或自由策略相比,这对应于4.0(差异:-4.0%,95% CI -5.8, -2.1)和2.3(差异:-2.3%,95% CI -3.7, -0.9)个百分点的风险降低。结论:MINT试验的平均治疗效果倾向于自由策略,对于MINT样本中伴有贫血的急性心肌梗死患者的30天死亡和死亡或心肌梗死的风险可能是最佳的,因为没有估计个体化治疗效果对这些结果的影响。然而,个性化的输血策略决策有可能降低30天MACE的风险。MACE算法在临床使用前需要进行外部验证。试验注册:ClinicalTrials.gov, NCT02981407, https://clinicaltrials.gov/study/NCT02981407。
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引用次数: 0
Effects of a preoperative psychological expectation-focused intervention in patients undergoing valvular surgery - the randomized controlled ValvEx (valve patients’ expectations) study 瓣膜手术患者术前心理期望干预的效果——随机对照ValvEx(瓣膜患者期望)研究
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-17 DOI: 10.1016/j.ahj.2025.01.006
Nicole Horn MSc , Laura Gärtner PhD , Ardawan J. Rastan MD , Térezia B. Andrási MD , Juliane Lenz , Andreas Böning MD , Miriam Salzmann-Djufri MD , Ulrike Puvogel MD , Bernd Niemann MD , Maria Genovese MSc , Sibel Habash MSc , Frank Euteneuer PhD , Winfried Rief PhD , Stefan Salzmann PhD

Background

Many patients experience a reduced quality of life for months after heart surgery. Besides medical factors, psychological factors such as preoperative expectations influence the recovery process. The ValvEx study investigated whether an expectation-focused preoperative intervention before heart valve surgery would (i) improve the postoperative recovery process by reducing illness-related disability and ii) impact secondary outcomes such as increased positive realistic expectations, and reduce preoperative anxiety.

Methods

N = 89 patients undergoing heart valve surgery were randomized into 1 of 2 groups after a baseline assessment: Standard medical care (SOC) vs SOC plus psychological expectation-focused intervention (EXPECT) on the day of hospital admission. Further assessments were conducted on the evening before surgery, 4 to 6 days and 3 months after surgery. The primary outcome was illness-related disability. Constrained longitudinal data analyses were conducted to analyze the intervention effects, while the need for information was considered as a potential moderator.

Results

No general effects were observed for the EXPECT intervention over time regarding the primary outcome illness-related disability (Pain Disability Index, PDI) and the secondary outcomes (P ≥ .167). The intervention effects were moderated by the individual need for information: Patients with a higher need for information who received the EXPECT intervention were less anxious on the evening before surgery (P = .020, d = 0.314) and less restricted in their quality of life 4 to 6 days after surgery compared to patients who received SOC (P = .005, d = 0.464).

Conclusions

The ValvEx study is the first multicentre study investigating the expectation-optimizing preoperative intervention in heart valve patients. The implementation of the EXPECT intervention seemed to optimize outcomes after heart valve surgery for certain patients, such as patients with a high need for information. It is possible that there were no direct effects of the EXPECT intervention because the intervention dose was too low. These preliminary findings need to be corroborated by larger multicenter trials.
Trial registration The study was preregistered at ClinicalTrials (identifier: NCT04502121, https://clinicaltrials.gov/study/NCT04502121).
背景:许多患者在心脏手术后数月的生活质量下降。除医学因素外,术前预期等心理因素也会影响康复过程。ValvEx研究调查了心脏瓣膜手术前以期望为中心的术前干预是否会i)增加积极的现实期望,ii)减少术前焦虑,iii)改善术后恢复过程。方法:N = 89例接受心脏瓣膜手术的患者在入院当天进行基线评估后随机分为两组:标准医疗护理(SOC)与SOC加以心理期望为重点的干预(EXPECT)。术前晚、术后4 ~ 6天和术后3个月分别进行进一步评估。主要结果是疾病相关的残疾。我们进行了约束纵向数据分析来分析干预效果,同时认为信息需求是一个潜在的调节因素。结果:随着时间的推移,EXPECT干预在主要结局疾病相关残疾(疼痛残疾指数,PDI)和次要结局方面没有观察到一般效果(p≥0.167)。个体信息需求调节了干预效果:接受EXPECT干预的信息需求较高的患者在手术前晚上的焦虑程度较低(p = )。020, d = 0.314),与接受SOC的患者相比,术后4至6天的生活质量受到的限制较少(p = )。005年,d = 0.464)。结论:ValvEx研究是首个研究心脏瓣膜患者术前干预预期优化的多中心研究。EXPECT干预的实施似乎优化了某些患者心脏瓣膜手术后的结果,例如对信息需求高的患者。EXPECT干预可能没有直接影响,因为干预剂量太低。这些初步发现需要更大规模的多中心试验来证实。该研究在ClinicalTrials(标识符:NCT04502121, https://clinicaltrials.gov/study/NCT04502121)上进行了预注册。
{"title":"Effects of a preoperative psychological expectation-focused intervention in patients undergoing valvular surgery - the randomized controlled ValvEx (valve patients’ expectations) study","authors":"Nicole Horn MSc ,&nbsp;Laura Gärtner PhD ,&nbsp;Ardawan J. Rastan MD ,&nbsp;Térezia B. Andrási MD ,&nbsp;Juliane Lenz ,&nbsp;Andreas Böning MD ,&nbsp;Miriam Salzmann-Djufri MD ,&nbsp;Ulrike Puvogel MD ,&nbsp;Bernd Niemann MD ,&nbsp;Maria Genovese MSc ,&nbsp;Sibel Habash MSc ,&nbsp;Frank Euteneuer PhD ,&nbsp;Winfried Rief PhD ,&nbsp;Stefan Salzmann PhD","doi":"10.1016/j.ahj.2025.01.006","DOIUrl":"10.1016/j.ahj.2025.01.006","url":null,"abstract":"<div><h3>Background</h3><div>Many patients experience a reduced quality of life for months after heart surgery. Besides medical factors, psychological factors such as preoperative expectations influence the recovery process. The ValvEx study investigated whether an expectation-focused preoperative intervention before heart valve surgery would (i) improve the postoperative recovery process by reducing illness-related disability and ii) impact secondary outcomes such as increased positive realistic expectations, and reduce preoperative anxiety.</div></div><div><h3>Methods</h3><div>N = 89 patients undergoing heart valve surgery were randomized into 1 of 2 groups after a baseline assessment: Standard medical care (SOC) vs SOC plus psychological expectation-focused intervention (EXPECT) on the day of hospital admission. Further assessments were conducted on the evening before surgery, 4 to 6 days and 3 months after surgery. The primary outcome was illness-related disability. Constrained longitudinal data analyses were conducted to analyze the intervention effects, while the need for information was considered as a potential moderator.</div></div><div><h3>Results</h3><div>No general effects were observed for the EXPECT intervention over time regarding the primary outcome illness-related disability (Pain Disability Index, PDI) and the secondary outcomes (<em>P</em> ≥ .167). The intervention effects were moderated by the individual need for information: Patients with a higher need for information who received the EXPECT intervention were less anxious on the evening before surgery (<em>P</em> = .020, d = 0.314) and less restricted in their quality of life 4 to 6 days after surgery compared to patients who received SOC (<em>P</em> = .005, d = 0.464).</div></div><div><h3>Conclusions</h3><div>The ValvEx study is the first multicentre study investigating the expectation-optimizing preoperative intervention in heart valve patients. The implementation of the EXPECT intervention seemed to optimize outcomes after heart valve surgery for certain patients, such as patients with a high need for information. It is possible that there were no direct effects of the EXPECT intervention because the intervention dose was too low. These preliminary findings need to be corroborated by larger multicenter trials.</div><div><strong>Trial registration</strong> The study was preregistered at ClinicalTrials (identifier: NCT04502121, <span><span>https://clinicaltrials.gov/study/NCT04502121</span><svg><path></path></svg></span>).</div></div>","PeriodicalId":7868,"journal":{"name":"American heart journal","volume":"282 ","pages":"Pages 156-169"},"PeriodicalIF":3.7,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Increased prevalence of coronary atherosclerosis in cancer survivors: A retrospective matched cross-sectional study with coronary CT angiography 癌症幸存者冠状动脉粥样硬化患病率增加:冠状动脉CT血管造影的回顾性匹配横断面研究。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-09 DOI: 10.1016/j.ahj.2025.01.004
Elissa A.S. Polomski MD , Julius C. Heemelaar MD, PhD , Mian E.S. de Ronde MD , Ahmed A.M. Al Jaff BSc , B.J.A. Mertens PhD , Paul R.M. van Dijkman MD, PhD , J. Wouter Jukema MD, PhD , M. Louisa Antoni MD, PhD

Background

Cancer and cancer treatment may accelerate the development of cardiovascular disease. With the improved prognosis of cancer survivors, cardiovascular events are increasing in this patient group. However, it is unknown whether the prevalence of coronary atherosclerosis is increased in patients with a history of cancer. This study aims to evaluate the prevalence and severity of coronary atherosclerosis in different age groups of cancer survivors compared to matched controls.

Methods

Consecutive cancer survivors aged > 30 years who underwent evaluation for stable coronary artery disease with coronary computed tomography angiography (CCTA) were included in this retrospective study. Propensity score matching was performed and cancer survivors were matched 1:2 to a control population without oncological history. The presence of coronary atherosclerosis was assessed in both groups.

Results

The study population consisted of 312 cancer survivors and 624 matched controls. Median age at CCTA scan was 59.2 [50.3-67.5] years and 66.0% was female. Coronary atherosclerosis was observed in 257 (82.4%) cancer survivors compared to 459 (73.6%) control patients with an Odds Ratio (OR) of 1.68 [95% CI: 1.19-2.36], P = .003. Mainly younger cancer survivors aged between 30 and 59 years had an increased prevalence of coronary atherosclerosis with an OR of 2.21 [95% CI: 1.40-3.49] compared to control patients (P = .001). In addition, thoracic radiotherapy showed a significant association with increased prevalence of atherosclerosis in the younger population with an OR of 3.29 ([95% CI: 1.70-6.38], P < .001).

Conclusions

Patients with a history cancer have an increased prevalence of coronary atherosclerosis on CCTA compared to matched patients without cancer. This effect was most pronounced in younger patients aged 30 to 59 years.
背景:癌症和癌症治疗可能加速心血管疾病的发展。随着癌症幸存者预后的改善,心血管事件在该患者组中增加。然而,有癌症病史的患者冠状动脉粥样硬化的患病率是否会增加尚不清楚。本研究旨在评估不同年龄组癌症幸存者的冠状动脉粥样硬化患病率和严重程度,并与对照组进行比较。方法:本回顾性研究纳入了年龄在bb0 ~ 30岁、接受冠状动脉计算机断层血管造影(CCTA)评估稳定冠状动脉疾病的连续癌症幸存者。进行倾向评分匹配,癌症幸存者与无肿瘤病史的对照人群1:2匹配。评估两组患者是否存在冠状动脉粥样硬化。结果:研究人群包括312名癌症幸存者和624名匹配的对照组。CCTA扫描的中位年龄为59.2[50.3-67.5]岁,66.0%为女性。257例(82.4%)癌症幸存者出现冠状动脉粥样硬化,对照组患者为459例(73.6%),优势比(OR)为1.68 [95% CI: 1.19-2.36], p=0.003。主要是年龄在30-59岁之间的年轻癌症幸存者,与对照患者相比,冠状动脉粥样硬化患病率增加,OR为2.21 [95% CI: 1.40-3.49] (p=0.001)。此外,胸部放疗显示与年轻人群中动脉粥样硬化患病率增加有显著关联,OR为3.29 ([95% CI: 1.70-6.38])。结论:在CCTA上,有癌症病史的患者与没有癌症的匹配患者相比,冠状动脉粥样硬化患病率增加。这种效果在30-59岁的年轻患者中最为明显。
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引用次数: 0
Elevated lipoprotein(a) levels are independently associated with the presence of significant coronary stenosis in de-novo patients with stable chest pain 在伴有稳定胸痛的新生患者中,脂蛋白(a)升高与存在显著冠状动脉狭窄独立相关。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-07 DOI: 10.1016/j.ahj.2025.01.001
Gitte Stokvad Brix MD , Laust Dupont Rasmussen MD, PhD , Palle Duun Rohde PhD , Louise Nissen MD, PhD , Mette Nyegaard PhD , Michelle Louise O'Donoghue MD, MPH , Morten Bøttcher MD, PhD , Simon Winther MD, PhD, DmSci

Background

The role of lipoprotein(a) (Lp(a)) in the risk-assessment of patients with de-novo stable chest pain is sparsely investigated. We assessed the association between Lp(a) concentration and the presence of coronary stenosis on coronary computed tomography (CT) angiography in a broad population of patients referred with stable chest pain.

Methods

Lp(a) measurements and coronary CT angiography were performed in 4,346 patients with stable chest pain and no previous history of coronary artery disease. The patients were included in the trial program, the Danish study of Non-Invasive testing in Coronary artery disease, Dan-NICAD. The prevalence and odds ratios for stenosis were calculated comparing normal Lp(a) (< 20 nmol/l) with moderately elevated (20 to <125 nmol/l), high (125 to <200 nmol/l), and very high (≥200 nmol/l) Lp(a) concentrations in both univariate and multivariate analyses.

Results

In total, 2,418 (55.6%), 1,276 (29.4%), 425 (9.8%), and 227 (5.2%) patients had normal, moderately elevated, high, and very high Lp(a) levels, respectively. The prevalences of coronary stenosis increased with increasing Lp(a) concentration (n = 569 (23.5%), n = 328 (25.7%), n = 129 (30.4%), and n = 77 (33.9%) in patients with normal, moderately elevated, high, and very high Lp(a), respectively). Likewise, the prevalence of patients with multivessel disease increased with increasing Lp(a) concentration (n = 252 (10.4%), n = 149 (11.7%), n = 61 (14.4%), and n = 41 (18.1%) in patients with normal, moderately elevated, high, and very high Lp(a), respectively). In an unadjusted model, odds ratios for stenosis increased with increasing Lp(a) concentrations odds ratio 95% CI: 1.12 (0.96-1.31), 1.42 (1.13-1.77), and 1.67 (1.24-2.22) for moderately elevated, high, and very high Lp(a) versus normal Lp(a), respectively). Adjustment for age, sex, and cardiovascular risk factors did not affect the association.

Conclusions

In stable, symptomatic patients without established coronary artery disease, Lp(a) levels are positively associated with the presence of coronary stenosis on coronary CT angiography. These findings may warrant using Lp(a) in the diagnostic management of patient with suspected coronary artery disease.

Trial Registration

The 3 studies within the Dan-NICAD program are registered on ClinicalTrials.gov: Dan-NICAD, NCT02264717, https://clinicaltrials.gov/study/NCT02264717?term=dan-nicad&rank=1. Dan-NICAD 2, NCT03481712, https://clinicaltrials.gov/study/NCT03481712?term=dan-nicad&rank=3. Dan-NICAD 3, NCT04707859, https://clinicaltrials.gov/study/NCT04707859?term=dan-nicad&rank=2.
背景:脂蛋白(a) (Lp(a))在新生稳定胸痛患者风险评估中的作用研究较少。我们评估了Lp(a)浓度与冠状动脉计算机断层扫描(CT)血管造影显示的冠状动脉狭窄之间的关系。方法:对4346例稳定胸痛且无冠状动脉疾病史的患者进行Lp(a)测量和冠状动脉CT血管造影。这些患者被纳入丹麦冠状动脉疾病无创检测研究(Dan-NICAD)的试验项目。比较正常Lp(a) (< 20 nmol/l)和中度升高(20 nmol/l),计算狭窄的患病率和优势比。结果:共有2418例(55.6%)、1276例(29.4%)、425例(9.8%)和227例(5.2%)患者Lp(a)水平正常、中度升高、高和极高。冠状动脉狭窄的发生率随着Lp(a)浓度的增加而增加(在Lp(a)正常、中等升高、高、极高的患者中,n = 569 (23.5%),n = 328 (25.7%),n = 129 (30.4%),n = 77(33.9%))。同样,多血管疾病患者的患病率随着Lp(a)浓度的增加而增加(在Lp(a)正常、中等升高、高和非常高的患者中,n = 252(10.4%)、n = 149(11.7%)、n = 61(14.4%)和n = 41(18.1%))。在未调整的模型中,狭窄的优势比随着Lp(a)浓度的增加而增加(优势比(95% CI)分别为中度升高、高和极高Lp(a)与正常Lp(a)的1.12(0.96-1.31)、1.42(1.13-1.77)和1.67(1.24-2.22))。调整年龄、性别和心血管危险因素对相关性没有影响。结论:在稳定、无冠状动脉疾病症状的患者中,Lp(a)水平与冠状动脉CT血管造影显示的冠状动脉狭窄呈正相关。这些发现可能证明在疑似冠状动脉疾病患者的诊断管理中使用Lp(a)是合理的。试验注册:Dan-NICAD项目中的三项研究已在ClinicalTrials.gov上注册:Dan-NICAD, NCT02264717, https://clinicaltrials.gov/study/NCT02264717?term=dan-nicad&rank=1。Dan-NICAD 2, NCT03481712, https://clinicaltrials.gov/study/NCT03481712?term=dan-nicad&rank=3。Dan-NICAD 3, NCT04707859, https://clinicaltrials.gov/study/NCT04707859?term=dan-nicad&rank=2。
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引用次数: 0
Type 2 diabetes disease and management patterns across a large, diverse healthcare system: Issues and opportunities for guideline-directed therapies 2型糖尿病疾病和管理模式在一个大的,多样化的医疗保健系统:问题和指导治疗的机会。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-06 DOI: 10.1016/j.ahj.2025.01.003
Alexander J. Blood MD, MSc , Lee-Shing Chang MD , Caitlin Colling MD , Gretchen Stern PharmD , Daniel Gabovitch MBA , David Zelle , Emily Zacherle MS, MBA , Joshua Noone PhD , Carey Robar MD , Samuel J. Aronson ALM, MA , Thomas A. Gaziano MD, MSc , Lina S. Matta PharmD, MPH , Jorge Plutzky MD , Christopher P. Cannon MD , Deborah J. Wexler MD , Benjamin M. Scirica MD, MPH

Background

The prevalence, chronicity and clinical impact of type 2 diabetes (T2D) defines this disease state as a critical determinant in morbidity and mortality, as encountered by individuals, health care systems, and public health in general. The need to understand and optimize T2D identification and management is now further heightened by the advent of medications with established cardiovascular (CV) and kidney benefits in such patients, namely sodium-glucose cotransporter 2 inhibitors (SGLT2i) and glucagon-like peptide 1 receptor agonists (GLP-1 RA). Prescription rates for these agents have remained low despite guidelines incorporating and emphasizing their use. Better understanding T2D disease and management patterns, including percentage of patients meeting guideline indications, is necessary to address undertreatment, improve patient management, and enable better strategies. We evaluated such issues, including eligibility for and utilization of SGLT2i and GLP-1 RA, in a large health system caring for over 1.5 million patients annually.

Methods

The electronic health record (EHR) at a large health network in the Northeastern United States was queried to identify patients 18 years of age or older with T2D and at least 1 hemoglobin A1c (HbA1c) between January 1, 2020 and January 1, 2023, examining those with T2D and 1) atherosclerotic CV disease (ASCVD), 2) an estimated 10-year ASCVD risk score ≥ 10% without known ASCVD, 3) heart failure (HF), and/or 4) chronic kidney disease (CKD) based on EHR listed comorbidities. Demographics, medications, comorbidities, and indications for SGLT2i and/or GLP-1 RA therapy were assessed by 1 or more of the 4 indications above as outlined in society guidelines.

Results

Of the 147,338 patients who met inclusion criteria, 47% were female, 28% were non-white, and 14% with a non-English language preference. Of those, 121,508 (83%) had an indication for either SGLT2i or GLP-1 RA based on guideline recommendations: 17% were prescribed an SGLT2i, 22% were prescribed GLP-1 RA, and 6% of patients were prescribed both medications. Only 33% of all eligible patients were prescribed therapy. Of patients eligible for either an SGLT2i or GLP-1 RA therapy not currently receiving either therapy, 49% had 10-year ASCVD risk ≥ 10% without known ASCVD, 42% had ASCVD, 52% had CKD, and 14% had HF.

Conclusions

More than 4 out of 5 patients with T2D had a CV or kidney indication for either SGLT2i or GLP-1 RA. However, uptake of SGLT2i/GLP-1 RA in these high-risk populations remains low (just 32%) across this health network. Future studies are needed to identify better strategies to overcome provider, patient, and system-level barriers to the uptake and dissemination of guideline-concordant T2D therapies.
背景:2型糖尿病(T2D)的患病率、慢性性和临床影响将这种疾病状态定义为个体、卫生保健系统和一般公共卫生遇到的发病率和死亡率的关键决定因素。随着钠-葡萄糖共转运蛋白2抑制剂(SGLT2i)和胰高血糖素样肽1受体激动剂(GLP-1 RA)等对心血管(CV)和肾脏有益的药物的出现,了解和优化T2D识别和管理的必要性进一步提高。尽管指南纳入并强调了这些药物的使用,但这些药物的处方率仍然很低。更好地了解T2D疾病和管理模式,包括符合指南适应症的患者百分比,对于解决治疗不足、改善患者管理和制定更好的策略是必要的。我们评估了这些问题,包括SGLT2i和GLP-1 RA在一个每年照顾超过150万患者的大型卫生系统中的资格和使用。方法:查询美国东北部大型健康网络的电子健康记录(EHR),以确定2020年1月1日至2023年1月1日期间18岁或以上的T2D患者和至少1个血红蛋白A1c (HbA1c),检查T2D和1)动脉粥样硬化性心血管疾病(ASCVD), 2)估计10年ASCVD风险评分≥10%,3)心力衰竭(HF)和/或4)基于EHR列出的合并症的慢性肾脏疾病(CKD)。SGLT2i和/或GLP-1类RA治疗的人口统计学、药物、合并症和适应症通过上述社会指南中概述的4种适应症中的一种或多种进行评估。结果:在符合纳入标准的147,338例患者中,47%为女性,28%为非白人,14%为非英语语言偏好。其中,121,508例(83%)患者有SGLT2i或GLP-1 RA的适应症:17%的患者服用SGLT2i, 22%的患者服用GLP-1 RA, 6%的患者同时服用这两种药物,只有32%的患者符合处方治疗条件。在符合SGLT2i或GLP-1 RA治疗的患者中,目前未接受任何一种治疗的患者中,49%的患者10年ASCVD风险≥10%,不知道ASCVD, 42%患有ASCVD, 52%患有CKD, 14%患有HF。结论:超过五分之四的T2D患者有CV或肾脏适应症,用于SGLT2i或GLP-1 RA。然而,在整个卫生网络中,这些高危人群的SGLT2i/GLP-1 RA的摄取仍然很低(仅32%)。未来的研究需要确定更好的策略来克服提供者、患者和系统层面的障碍,以吸收和传播符合指南的T2D治疗。
{"title":"Type 2 diabetes disease and management patterns across a large, diverse healthcare system: Issues and opportunities for guideline-directed therapies","authors":"Alexander J. Blood MD, MSc ,&nbsp;Lee-Shing Chang MD ,&nbsp;Caitlin Colling MD ,&nbsp;Gretchen Stern PharmD ,&nbsp;Daniel Gabovitch MBA ,&nbsp;David Zelle ,&nbsp;Emily Zacherle MS, MBA ,&nbsp;Joshua Noone PhD ,&nbsp;Carey Robar MD ,&nbsp;Samuel J. Aronson ALM, MA ,&nbsp;Thomas A. Gaziano MD, MSc ,&nbsp;Lina S. Matta PharmD, MPH ,&nbsp;Jorge Plutzky MD ,&nbsp;Christopher P. Cannon MD ,&nbsp;Deborah J. Wexler MD ,&nbsp;Benjamin M. Scirica MD, MPH","doi":"10.1016/j.ahj.2025.01.003","DOIUrl":"10.1016/j.ahj.2025.01.003","url":null,"abstract":"<div><h3>Background</h3><div>The prevalence, chronicity and clinical impact of type 2 diabetes (T2D) defines this disease state as a critical determinant in morbidity and mortality, as encountered by individuals, health care systems, and public health in general. The need to understand and optimize T2D identification and management is now further heightened by the advent of medications with established cardiovascular (CV) and kidney benefits in such patients, namely sodium-glucose cotransporter 2 inhibitors (SGLT2i) and glucagon-like peptide 1 receptor agonists (GLP-1 RA). Prescription rates for these agents have remained low despite guidelines incorporating and emphasizing their use. Better understanding T2D disease and management patterns, including percentage of patients meeting guideline indications, is necessary to address undertreatment, improve patient management, and enable better strategies. We evaluated such issues, including eligibility for and utilization of SGLT2i and GLP-1 RA, in a large health system caring for over 1.5 million patients annually.</div></div><div><h3>Methods</h3><div>The electronic health record (EHR) at a large health network in the Northeastern United States was queried to identify patients 18 years of age or older with T2D and at least 1 hemoglobin A1c (HbA1c) between January 1, 2020 and January 1, 2023, examining those with T2D and 1) atherosclerotic CV disease (ASCVD), 2) an estimated 10-year ASCVD risk score ≥ 10% without known ASCVD, 3) heart failure (HF), and/or 4) chronic kidney disease (CKD) based on EHR listed comorbidities. Demographics, medications, comorbidities, and indications for SGLT2i and/or GLP-1 RA therapy were assessed by 1 or more of the 4 indications above as outlined in society guidelines.</div></div><div><h3>Results</h3><div>Of the 147,338 patients who met inclusion criteria, 47% were female, 28% were non-white, and 14% with a non-English language preference. Of those, 121,508 (83%) had an indication for either SGLT2i or GLP-1 RA based on guideline recommendations: 17% were prescribed an SGLT2i, 22% were prescribed GLP-1 RA, and 6% of patients were prescribed both medications. Only 33% of all eligible patients were prescribed therapy. Of patients eligible for either an SGLT2i or GLP-1 RA therapy not currently receiving either therapy, 49% had 10-year ASCVD risk ≥ 10% without known ASCVD, 42% had ASCVD, 52% had CKD, and 14% had HF.</div></div><div><h3>Conclusions</h3><div>More than 4 out of 5 patients with T2D had a CV or kidney indication for either SGLT2i or GLP-1 RA. However, uptake of SGLT2i/GLP-1 RA in these high-risk populations remains low (just 32%) across this health network. Future studies are needed to identify better strategies to overcome provider, patient, and system-level barriers to the uptake and dissemination of guideline-concordant T2D therapies.</div></div>","PeriodicalId":7868,"journal":{"name":"American heart journal","volume":"282 ","pages":"Pages 114-124"},"PeriodicalIF":3.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142942858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailored hydration for the prevention of contrast-induced acute kidney injury after coronary angiogram or PCI: A systematic review and meta-analysis 预防冠脉造影或PCI后造影剂引起的急性肾损伤的量身补水:一项系统回顾和荟萃分析。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-04 DOI: 10.1016/j.ahj.2025.01.002
François Cossette MD , Alexandru Trifan , Gabriel Prévost-Marcotte MD , Gemina Doolub MD, MSc , Derek F. So MD , William Beaubien-Souligny MD, PhD , Dana Abou-Saleh MD , Jean-Francois Tanguay MD , Brian J. Potter MD, CM, SM , Hung Q. Ly MD, SM , Istok Menkovic MD , Tomas Cieza MD , Robert Avram MD, MSc , Alexandra Bastiany MD , Guillaume Marquis-Gravel MD, MSc

Background

Contrast-induced acute kidney injury (CI-AKI) is a frequent complication of coronary interventions associated with an increased risk of mortality and morbidity. The optimal intravenous hydration strategy to prevent CI-AKI is not well-established. The primary objective is to determine if a tailored hydration strategy reduces the risk of CI-AKI and of major adverse cardiovascular events (MACE) in patients undergoing coronary angiography compared with a nontailored hydration strategy.

Methods

A study-level meta-analysis of randomized controlled trials comparing tailored versus nontailored hydration strategies for the prevention of CI-AKI (primary outcome) and of MACE (main secondary outcome) in patients undergoing coronary angiography for any indication was performed. Tailored hydration was defined as the administration of intravenous fluids based on patient-specific parameters other than weight only.

Results

A total of 13 studies were included (n = 4,458 participants). The overall risk of bias was moderate. A tailored strategy was associated with a significant reduction in the risk of CI-AKI (RR = 0.56, 95% CI, [0.46-0.69], P < .00001; I2 = 26%), and of MACE (RR = 0.57, 95% CI, [0.42-0.78], P = .0005; I2 = 12%). A tailored hydration strategy was not associated with a significant reduction in the other prespecified secondary outcomes, except for all-cause mortality (RR = 0.57, 95% CI, [0.35, 0.94], P = .03; I2 = 0%). The impact of a tailored strategy on the primary outcome was consistent in sensitivity analyses.

Conclusion

These results suggest that tailored hydration is superior to nontailored hydration in reducing the risk of CI-AKI and MACE in patients undergoing coronary angiography. Future trials are required to identify the optimal tailored hydration strategy.
背景:造影剂诱导的急性肾损伤(CI-AKI)是冠状动脉介入治疗的常见并发症,与死亡率和发病率的增加相关。预防CI-AKI的最佳静脉补水策略尚未确定。主要目的是确定与非定制水化策略相比,定制水化策略是否能降低接受冠状动脉造影的患者CI-AKI和主要不良心血管事件(MACE)的风险。方法:对随机对照试验进行研究水平荟萃分析,比较针对任何适应症接受冠状动脉造影的患者,定制和非定制水化策略预防CI-AKI(主要结局)和MACE(主要次要结局)的效果。量身定做的水合作用被定义为根据患者的具体参数给予静脉输液,而不仅仅是体重。结果:共纳入13项研究(n = 4,458名受试者)。总体偏倚风险为中等。量身定制的策略与CI- aki (RR=0.56, 95% CI, [0.46-0.69], p2=26%)和MACE (RR=0.57, 95% CI, [0.42-0.78], p=0.0005)的风险显著降低相关;I2 = 12%)。除了全因死亡率外,量身定制的补水策略与其他预先指定的次要结局的显著降低无关(RR=0.57, 95% CI, [0.35, 0.94], p=0.03;I2 = 0%)。量身定制的策略对主要结局的影响在敏感性分析中是一致的。结论:这些结果表明,在降低冠状动脉造影患者CI-AKI和MACE的风险方面,定制水化优于非定制水化。未来的试验需要确定最佳的定制水化策略。
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引用次数: 0
Implications of an off-hours setting in patients undergoing transcatheter edge-to-edge repair for mitral regurgitation 二尖瓣反流患者行经导管边缘对边缘修复的非工作时间设置的意义。
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2025-01-02 DOI: 10.1016/j.ahj.2024.12.012
Alon Shechter MD, MHA , Aakriti Gupta MD, MSc , Danon Kaewkes MD , Homa Taheri MD , Takashi Nagasaka MD , Vivek Patel MSc , Kazuki Suruga MD , Gloria J. Hong MD, MHS , Keita Koseki MD , Ofir Koren MD , Moody Makar MD , Sabah Skaf MD , Dhairya Patel MPH , Tarun Chakravarty MD , Robert J. Siegel MD , Raj R. Makkar MD

Background

Little is known about transcatheter edge-to-edge repair (TEER) for mitral regurgitation (MR) that is performed outside of usual working hours. We aimed to explore the prevalence, correlates, and outcomes of mitral TEER initiated off-hours, ie, before 7:30 am, after 5:30 pm, or on weekends/holidays.

Methods

A single-center registry of isolated, first-time interventions was retrospectively analyzed in its entirety and after propensity-score matching. Outcomes included all-cause mortality, heart failure (HF) hospitalizations, and the persistence of MR and functional incapacitation along the first postprocedural year.

Results

A total of 1,177 procedures were studied. Of them, 117 (9.9%) took place off-hours. These were more often urgent interventions (30.8% vs. 14.3%, P < .001) performed in the midst of acute HF / hemodynamic compromise and on individuals with greater comorbidity, more advanced HF, and higher interventional risk. Overall procedural features were unaffected by interventional timing, and a high (>97%) technical success rate was achieved unanimously. MR severity and functional class similarly improved from baseline in the 2 study groups. Deaths and the composite of deaths or HF hospitalizations occurred earlier and more frequently following off-hours procedures (18.8% vs. 11.5%, P = .022 and 33.3% vs. 24.6%, P = .040, respectively). None of the explored endpoints’ risks were independently associated with procedural timing. Within a 234-patient, 1-to-1 matched sub-cohort, no inter-group differences were observed in pre-, intra-, and postprocedural findings and outcomes.

Conclusions

A noninfrequent procedure, off-hours mitral TEER is performed in high-risk cases but, in the hands of experienced interventionalists, should prove safe, feasible, and efficacious.
背景:在正常工作时间以外进行二尖瓣经导管边缘到边缘修复(TEER)的研究很少。我们的目的是探讨二尖瓣TEER在非工作时间(即早上7:30之前、下午5:30之后或周末/假期)的患病率、相关性和结果。方法:-对孤立的、首次干预的单中心登记进行回顾性分析,并在倾向评分匹配后进行整体分析。结果包括全因死亡率、心力衰竭住院、术后第一年持续出现明显的二尖瓣反流(MR)和功能丧失。结果:共研究了1177例手术。其中117起(9.9%)发生在非工作时间。这些是更常见的紧急干预(30.8%对14.3%,p97%)技术成功率达到一致。在两个研究组中,MR的严重程度和功能等级与基线相比有相似的改善。非工作时间手术后,死亡和合并死亡或HF住院的情况发生得更早、更频繁(分别为18.8%对11.5%,p=0.022和33.3%对24.6%,p=0.040)。所有研究终点的风险均与手术时机无关。在234例患者中,1对1匹配的亚队列中,在手术前、手术中和手术后的发现和结果中没有观察到组间差异。结论:在高危病例中,非工作时间二尖瓣TEER是一种不常见的手术,但在经验丰富的介入医师手中,应被证明是安全、可行和有效的。
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引用次数: 0
Transcoronary cooling and dilution for cardioprotection during revascularisation for ST-segment elevation myocardial infarction: Design and rationale of the STEMI-Cool study 经冠状动脉冷却和稀释用于st段抬高型心肌梗死血运重建期间的心脏保护:STEMI-Cool研究的设计和基本原理
IF 3.7 2区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-12-30 DOI: 10.1016/j.ahj.2024.12.009
Ermes Carulli MD , Michael McGarvey MD, PhD , Mohssen Chabok MD, PhD , Vasileios Panoulas MD, PhD , Gareth Rosser MD , Mohammed Akhtar MD , Robert Smith MD , Navin Chandra MD , Abtehale Al-Hussaini MD, PhD , Tito Kabir MD, PhD , Laura Barker MRes , Francesco Bruno MD , Konstantinos Konstantinou MD, PhD , Ranil de Silva MD, PhD , Jonathan Hill MD , Yun Xu PhD , Rebecca Lane MD , Chiara Bucciarelli-Ducci MD, PhD , Thomas Luescher MD , Miles Dalby MD

Background

ST-segment elevation myocardial infarction (STEMI) is treated with immediate primary percutaneous coronary intervention (pPCI) to restore coronary blood flow in the acutely ischaemic territory, but is associated with reperfusion injury limiting the benefit of the therapy. No treatment has proven effective in reducing reperfusion injury. Transcoronary hypothermia has been tested in clinical studies and is well tolerated, but is generally established after crossing the occlusion with a guidewire therefore after initial reperfusion, which might have contributed to the neutral outcomes. Transcatheter strategies may also offer additional benefit through haemodilution and the resultant controlled reperfusion, but this has not been fully investigated for pPCI.

Design

STEMI-Cool is a pragmatic, registry-based randomised clinical pilot trial to test the recruitment rate, feasibility, and safety of a simple transcoronary cooling and dilution protocol. Sixty STEMI patients undergoing pPCI will be randomised 1:1 to standard of care or continuous infusion of room temperature saline through the guiding catheter to achieve intracoronary temperature reductions of 6 to 8°C, commencing before crossing the coronary occlusion with a guidewire. Mechanistic outcome measures will include microvascular resistance, biomarkers of inflammation before infusion and at 24 hour, and magnetic resonance imaging of myocardial salvage and infarct size.

Conclusions

STEMI-Cool will investigate the recruitment rate, feasibility and safety of an innovative and simple cooling and diluting strategy for cardioprotection before and during reperfusion with pPCI, aiming to address limitations faced in other studies. Mechanistic outcome measures will allow insight into inflammatory, microvascular and structural changes induced by transcoronary cooling and dilution.
背景:st段抬高型心肌梗死(STEMI)可以通过立即原发性经皮冠状动脉介入治疗(pPCI)来恢复急性缺血区域的冠状动脉血流,但与再灌注损伤相关,限制了治疗的益处。没有任何治疗方法被证明能有效减少再灌注损伤。经冠状动脉低温已在临床研究中进行了测试,并且耐受性良好,但通常在用导丝穿过闭塞后建立,因此在初始再灌注后建立,这可能是中性结果的原因。经导管策略也可以通过血液稀释和由此产生的控制再灌注提供额外的益处,但这还没有对pPCI进行充分的研究。STEMI-Cool是一项实用的、基于注册的随机临床试验,旨在测试简单的经冠状动脉冷却和稀释方案的招募率、可行性和安全性。60名接受pPCI的STEMI患者将按1:1随机分组,分别接受标准治疗或通过引导导管持续输注室温生理盐水,以实现冠状动脉内温度降低6-8°C,并在导丝穿过冠状动脉闭塞之前开始。机械结果测量将包括微血管阻力、输注前和24h时的炎症生物标志物、心肌恢复和梗死面积的磁共振成像。结论:STEMI-Cool将研究一种创新和简单的冷却和稀释策略在pPCI再灌注前和再灌注期间的心脏保护的招募率、可行性和安全性,旨在解决其他研究面临的局限性。机械结果测量将允许深入了解经冠状动脉冷却和稀释引起的炎症、微血管和结构变化。
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American heart journal
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