首页 > 最新文献

Vessel plus最新文献

英文 中文
Malperfusion syndromes in acute type A aortic dissection 急性A型主动脉夹层的灌注不良综合征
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2021.108
X. Lou, E. Chen
Acute aortic dissection complicated by malperfusion syndrome is a devastating condition that significantly impacts morbidity and mortality. Malperfusion syndrome can affect any vascular bed with varying degrees of end-organ involvement. While conventional management of acute type A aortic dissection (ATAAD) with or without malperfusion syndrome is emergent central aortic repair, growing evidence suggests that this approach results in unsatisfactory outcomes for those presenting specifically with mesenteric malperfusion. With the established short and long-term benefits of thoracic endovascular aortic repair in the management of acute complicated type B aortic dissection, there is an emerging paradigm shift towards initial reperfusion of distal organs with a variety of endovascular and transcatheter techniques followed by central aortic repair in an otherwise stable patient whose risk of aortic rupture is low. A multidisciplinary team and a patient-specific approach remain paramount in the successful management of this high-risk, high-complexity subset of ATAAD patients.
急性主动脉夹层合并灌注不良综合征是一种严重影响发病率和死亡率的疾病。灌注不良综合征可影响任何血管床,并有不同程度的终末器官受累。虽然有或没有灌注不良综合征的急性A型主动脉夹层(ATAAD)的常规治疗是紧急中央主动脉修复,但越来越多的证据表明,这种方法对那些特别表现为肠系膜灌注不良的患者的结果并不令人满意。随着胸段血管内主动脉修复术在治疗急性复杂B型主动脉夹层中的短期和长期益处的确立,对于其他方面稳定且主动脉破裂风险较低的患者,出现了一种新的模式转变,即采用各种血管内和经导管技术对远端器官进行初始再灌注,然后进行中央主动脉修复。多学科团队和患者特异性方法对于成功管理这一高风险、高复杂性的ATAAD患者亚群至关重要。
{"title":"Malperfusion syndromes in acute type A aortic dissection","authors":"X. Lou, E. Chen","doi":"10.20517/2574-1209.2021.108","DOIUrl":"https://doi.org/10.20517/2574-1209.2021.108","url":null,"abstract":"Acute aortic dissection complicated by malperfusion syndrome is a devastating condition that significantly impacts morbidity and mortality. Malperfusion syndrome can affect any vascular bed with varying degrees of end-organ involvement. While conventional management of acute type A aortic dissection (ATAAD) with or without malperfusion syndrome is emergent central aortic repair, growing evidence suggests that this approach results in unsatisfactory outcomes for those presenting specifically with mesenteric malperfusion. With the established short and long-term benefits of thoracic endovascular aortic repair in the management of acute complicated type B aortic dissection, there is an emerging paradigm shift towards initial reperfusion of distal organs with a variety of endovascular and transcatheter techniques followed by central aortic repair in an otherwise stable patient whose risk of aortic rupture is low. A multidisciplinary team and a patient-specific approach remain paramount in the successful management of this high-risk, high-complexity subset of ATAAD patients.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67654238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Department of veterans affairs post-coronary artery bypass graft patients’ atrial fibrillation: 10-year outcomes 退伍军人事务部冠状动脉搭桥术后患者房颤:10年结局
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2021.119
J. Quin, G. Almassi, J. Collins, B. Carr, F. Grover, A. L. Shroyer
Aim: This Department of Veterans Affairs’ (VA) research project evaluated the impact of postoperative atrial fibrillation (POAF) upon 10-year outcomes for coronary artery bypass grafting (CABG) patients. Methods: Veterans enrolled in the “Randomized On-/Off-pump Bypass” (ROOBY) trial with new-onset POAF post-CABG were compared to those without POAF with respect to 10-year atrial fibrillation (AF) and mortality rates. Multivariable logistic regression examined whether AF was independently associated with 10-year survival after holding other preoperative risk factors constant. Results: Of the 2203 ROOBY veterans enrolled at 18 VA medical centers from 2002 to 2008, 100 patients with preoperative AF (n = 93) or unknown post-CABG POAF status (n = 7) were excluded. The POAF rate was 26.2% (n = 551/2103). The POAF patients were older and had more co-morbidities than the non-POAF patients (n = 1552). The AF rate among 10-year ROOBY POAF survivors was 18.9% (n = 64/338) compared to 5.8% (n = 61/1048) for non-POAF patients; P < 0.001. Compared to non-POAF patients’ 10-year survival of 70%, the ROOBY POAF veterans’ 10-year survival rate was 63%. Baseline risks inversely associated with 10-year survival included age, chronic obstructive pulmonary disease, serum creatinine > 1.5, peripheral vascular disease, and smoking. Holding these factors constant, POAF was not independently associated with 10-year survival. Conclusion: Post-CABG, ROOBY POAF veterans had higher rates of 10-year AF, which was negatively associated with 10-year survival; however, this association was not significant. Given that POAF may adversely impact 10-year AF rates, additional investigation appears warranted to improve future POAF patients’ care.
目的:退伍军人事务部(VA)的研究项目评估了术后心房颤动(POAF)对冠状动脉旁路移植术(CABG)患者10年预后的影响。方法:参加“随机开/停泵旁路”(ROOBY)试验的cabg术后新发POAF的退伍军人与无POAF的退伍军人在10年房颤(AF)和死亡率方面进行比较。在保持其他术前危险因素不变的情况下,多变量logistic回归检验房颤是否与10年生存率独立相关。结果:2002年至2008年在18个VA医疗中心登记的2203名ROOBY退伍军人中,排除了100名术前房颤(n = 93)或cabg后不明房颤状态(n = 7)的患者。POAF发生率为26.2% (n = 551/2103)。与非POAF患者相比,POAF患者年龄更大,合并症更多(n = 1552)。10年ROOBY POAF幸存者的AF发生率为18.9% (n = 64/338),而非POAF患者为5.8% (n = 61/1048);P < 0.001。与非POAF患者的10年生存率为70%相比,ROOBY POAF退伍军人的10年生存率为63%。与10年生存率呈负相关的基线风险包括年龄、慢性阻塞性肺疾病、血清肌酐bbb1.5、周围血管疾病和吸烟。在这些因素不变的情况下,POAF与10年生存率没有独立关联。结论:cabg后,ROOBY POAF退伍军人10年房颤发生率较高,与10年生存率呈负相关;然而,这种关联并不显著。鉴于POAF可能对10年房颤率产生不利影响,进一步的研究似乎有必要改善未来POAF患者的护理。
{"title":"Department of veterans affairs post-coronary artery bypass graft patients’ atrial fibrillation: 10-year outcomes","authors":"J. Quin, G. Almassi, J. Collins, B. Carr, F. Grover, A. L. Shroyer","doi":"10.20517/2574-1209.2021.119","DOIUrl":"https://doi.org/10.20517/2574-1209.2021.119","url":null,"abstract":"Aim: This Department of Veterans Affairs’ (VA) research project evaluated the impact of postoperative atrial fibrillation (POAF) upon 10-year outcomes for coronary artery bypass grafting (CABG) patients. Methods: Veterans enrolled in the “Randomized On-/Off-pump Bypass” (ROOBY) trial with new-onset POAF post-CABG were compared to those without POAF with respect to 10-year atrial fibrillation (AF) and mortality rates. Multivariable logistic regression examined whether AF was independently associated with 10-year survival after holding other preoperative risk factors constant. Results: Of the 2203 ROOBY veterans enrolled at 18 VA medical centers from 2002 to 2008, 100 patients with preoperative AF (n = 93) or unknown post-CABG POAF status (n = 7) were excluded. The POAF rate was 26.2% (n = 551/2103). The POAF patients were older and had more co-morbidities than the non-POAF patients (n = 1552). The AF rate among 10-year ROOBY POAF survivors was 18.9% (n = 64/338) compared to 5.8% (n = 61/1048) for non-POAF patients; P < 0.001. Compared to non-POAF patients’ 10-year survival of 70%, the ROOBY POAF veterans’ 10-year survival rate was 63%. Baseline risks inversely associated with 10-year survival included age, chronic obstructive pulmonary disease, serum creatinine > 1.5, peripheral vascular disease, and smoking. Holding these factors constant, POAF was not independently associated with 10-year survival. Conclusion: Post-CABG, ROOBY POAF veterans had higher rates of 10-year AF, which was negatively associated with 10-year survival; however, this association was not significant. Given that POAF may adversely impact 10-year AF rates, additional investigation appears warranted to improve future POAF patients’ care.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67654829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current status and future prospects of percutaneous treatment of mitral valve disease: repair vs. replacement 经皮治疗二尖瓣疾病的现状及未来展望:修复与置换
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2021.135
M. Sabaté
© The Author(s) 2022. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
©作者2022。开放获取本文遵循知识共享署名4.0国际许可协议(https://creativecommons.org/licenses/by/4.0/),该协议允许不受限制地使用、共享、改编、分发和复制,以任何媒介或格式,用于任何目的,甚至商业目的,只要您适当地注明原作者和来源,提供知识共享许可协议的链接,并注明是否进行了更改。
{"title":"Current status and future prospects of percutaneous treatment of mitral valve disease: repair vs. replacement","authors":"M. Sabaté","doi":"10.20517/2574-1209.2021.135","DOIUrl":"https://doi.org/10.20517/2574-1209.2021.135","url":null,"abstract":"© The Author(s) 2022. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mid-basal left ventricular longitudinal dysfunction as a prognostic marker in mutated transthyretin-related cardiac amyloidosis 中基性左心室纵向功能障碍作为突变的甲状腺素相关的心脏淀粉样变性的预后标志
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2021.86
R. Licordari, F. Minutoli, F. Cappelli, A. Micari, L. Colarusso, Federico Antonio Francesco Di Paola, M. Campisi, A. Recupero, A. Mazzeo, G. Di Bella
Aim: Mutated transthyretin (TTRv) cardiac amyloidosis (CA) represents an uncommon form of CA. Our study aimed to assess the best echocardiographic prognostic parameter in the early stage of TTRv amyloidosis with cardiomyopathy. Methods: In total, 99 patients with TTRv in New York Heart Association class I or II and with no clinical history of previous cardiac disease were studied. Assessment with 99mTc-DPD whole-body scan showed CA in 46 patients. At the first medical contact, an echocardiographic examination was performed. In addition to conventional left ventricular (LV), echocardiographic measurements [ejection fraction (EF), dimensions and diastolic function, global longitudinal strain (GLS), longitudinal strain of the 4 apical segments, longitudinal strain of the 12 mid-basal segments (MBLS)] and their ratio [relative regional strain ratio (RRSR)] were obtained. Patient outcome was evaluated during a follow-up with an average duration of six years. Cardiac death and appropriate implantable cardiac defibrillator (ICD) shock were considered major events. Results: A higher value of LV thickness, E/E’, and RRSR and lower LV volumes, EF, GLS, MBLS were observed in patients with CA than the ones with only TTRv. During follow-up (median of 7.7 years), 25 major events (23 cardiac death and 2 appropriate ICD shocks) occurred. The logistic univariate analyses showed that LV EF, LV septal thickness, E/E’, GLS, and MBLS were all predictors of cardiovascular death. In multivariate analysis, MBLS was the only independent predictor of major events. A cut off of -14 of MBLS was selected as the best value to discriminate a worse prognosis on Kaplan-Meyer analysis. Conclusion: Longitudinal dysfunction is observed in the early stages of ATTRv amyloidosis with cardiomyopathy. Medio-basal LV longitudinal dysfunction is a strong independent echocardiographic predictor of cardiac death.
目的:突变甲状腺素转甲状腺素(TTRv)型心脏淀粉样变(CA)是一种罕见的CA。我们的研究旨在评估TTRv型淀粉样变合并心肌病早期的最佳超声心动图预后参数。方法:选取99例纽约心脏协会I级或II级TTRv患者,无既往心脏病病史。99mTc-DPD全身扫描显示46例CA。在第一次医疗接触时,进行了超声心动图检查。除常规左心室(LV)外,超声心动图测量[射血分数(EF),尺寸和舒张功能,总纵向应变(GLS), 4个根尖节段纵向应变,12个中基节段纵向应变]及其比值[相对区域应变比(RRSR)]。在平均6年的随访期间评估患者的预后。心脏死亡和适当的植入式心脏除颤器(ICD)休克被认为是主要事件。结果:CA患者的左室厚度、E/E′、RRSR值均高于单纯TTRv患者,左室容积、EF、GLS、MBLS值均低于单纯TTRv患者。在随访期间(中位数为7.7年),发生了25起主要事件(23起心源性死亡和2起适当的ICD电击)。logistic单因素分析显示,左室EF、左室间隔厚度、E/E′、GLS和MBLS都是心血管死亡的预测因子。在多变量分析中,MBLS是主要事件的唯一独立预测因子。Kaplan-Meyer分析选择MBLS的-14作为鉴别预后较差的最佳值。结论:ATTRv淀粉样变合并心肌病早期存在纵向功能障碍。中基底左室纵向功能障碍是心源性死亡强有力的独立超声心动图预测指标。
{"title":"Mid-basal left ventricular longitudinal dysfunction as a prognostic marker in mutated transthyretin-related cardiac amyloidosis","authors":"R. Licordari, F. Minutoli, F. Cappelli, A. Micari, L. Colarusso, Federico Antonio Francesco Di Paola, M. Campisi, A. Recupero, A. Mazzeo, G. Di Bella","doi":"10.20517/2574-1209.2021.86","DOIUrl":"https://doi.org/10.20517/2574-1209.2021.86","url":null,"abstract":"Aim: Mutated transthyretin (TTRv) cardiac amyloidosis (CA) represents an uncommon form of CA. Our study aimed to assess the best echocardiographic prognostic parameter in the early stage of TTRv amyloidosis with cardiomyopathy. Methods: In total, 99 patients with TTRv in New York Heart Association class I or II and with no clinical history of previous cardiac disease were studied. Assessment with 99mTc-DPD whole-body scan showed CA in 46 patients. At the first medical contact, an echocardiographic examination was performed. In addition to conventional left ventricular (LV), echocardiographic measurements [ejection fraction (EF), dimensions and diastolic function, global longitudinal strain (GLS), longitudinal strain of the 4 apical segments, longitudinal strain of the 12 mid-basal segments (MBLS)] and their ratio [relative regional strain ratio (RRSR)] were obtained. Patient outcome was evaluated during a follow-up with an average duration of six years. Cardiac death and appropriate implantable cardiac defibrillator (ICD) shock were considered major events. Results: A higher value of LV thickness, E/E’, and RRSR and lower LV volumes, EF, GLS, MBLS were observed in patients with CA than the ones with only TTRv. During follow-up (median of 7.7 years), 25 major events (23 cardiac death and 2 appropriate ICD shocks) occurred. The logistic univariate analyses showed that LV EF, LV septal thickness, E/E’, GLS, and MBLS were all predictors of cardiovascular death. In multivariate analysis, MBLS was the only independent predictor of major events. A cut off of -14 of MBLS was selected as the best value to discriminate a worse prognosis on Kaplan-Meyer analysis. Conclusion: Longitudinal dysfunction is observed in the early stages of ATTRv amyloidosis with cardiomyopathy. Medio-basal LV longitudinal dysfunction is a strong independent echocardiographic predictor of cardiac death.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Complex role of RhoA in regulating vascular smooth muscle cell phenotypes in type 2 diabetes RhoA在调节2型糖尿病血管平滑肌细胞表型中的复杂作用
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2022.26
Yaw Asare-Amankwah, K. Riches-Suman, Yajing Wang, Alexander D. Verin
The incidence of type 2 diabetes mellitus (T2DM) is growing globally, and the major cause of morbidity and mortality in these patients is the premature development of cardiovascular disease. Consequently, medical interventions, such as coronary artery bypass graft surgery and widespread statin prescriptions, are common in this patient group. Smooth muscle cells are the major structural component of the vascular wall. They play a crucial role in post-bypass recovery to successfully revascularize the heart by switching between differentiated (contractile) and dedifferentiated (synthetic) phenotypes. However, in patients with T2DM, these cells have functional defects that may affect bypass integration. RhoA is a small GTPase that regulates many functions, such as motility and phenotypic regulation of smooth muscle cells. RhoA is dependent upon a stimulus, and it can drive the contractile smooth muscle cell phenotype present in the healthy condition or the (mal)adaptive phenotypes prevalent in disease or in response to injury. We hypothesize that RhoA deregulation plays a major role in vascular complications of T2DM. This protein is deregulated in T2DM smooth muscle cells, which may in part explain the functional defects of smooth muscle tissue and the subsequent failure rate of bypass in these patients. An important consideration in this circumstance is the use of statin therapies because these further inhibit RhoA activity. The effect of inhibition of RhoA activity in patients with T2DM who have a bypass is currently unknown.
2型糖尿病(T2DM)的发病率正在全球范围内增长,这些患者发病和死亡的主要原因是心血管疾病的过早发展。因此,医疗干预,如冠状动脉搭桥手术和广泛的他汀类药物处方,在这一患者群体中很常见。平滑肌细胞是血管壁的主要结构成分。它们通过分化(收缩)和去分化(合成)表型之间的转换,在搭桥后恢复中成功地重建心脏血管发挥着至关重要的作用。然而,在T2DM患者中,这些细胞有可能影响旁路整合的功能缺陷。RhoA是一种小的GTPase,调节许多功能,如平滑肌细胞的运动性和表型调节。RhoA依赖于刺激,它可以驱动健康状态下存在的可收缩平滑肌细胞表型或疾病或损伤反应中普遍存在的(异常)适应性表型。我们假设RhoA失调在T2DM血管并发症中起主要作用。这种蛋白在T2DM平滑肌细胞中不受调节,这可能部分解释了这些患者平滑肌组织的功能缺陷和随后的搭桥失败率。在这种情况下,一个重要的考虑是使用他汀类药物治疗,因为这些进一步抑制RhoA活性。抑制RhoA活性对T2DM患者搭桥手术的影响目前尚不清楚。
{"title":"Complex role of RhoA in regulating vascular smooth muscle cell phenotypes in type 2 diabetes","authors":"Yaw Asare-Amankwah, K. Riches-Suman, Yajing Wang, Alexander D. Verin","doi":"10.20517/2574-1209.2022.26","DOIUrl":"https://doi.org/10.20517/2574-1209.2022.26","url":null,"abstract":"The incidence of type 2 diabetes mellitus (T2DM) is growing globally, and the major cause of morbidity and mortality in these patients is the premature development of cardiovascular disease. Consequently, medical interventions, such as coronary artery bypass graft surgery and widespread statin prescriptions, are common in this patient group. Smooth muscle cells are the major structural component of the vascular wall. They play a crucial role in post-bypass recovery to successfully revascularize the heart by switching between differentiated (contractile) and dedifferentiated (synthetic) phenotypes. However, in patients with T2DM, these cells have functional defects that may affect bypass integration. RhoA is a small GTPase that regulates many functions, such as motility and phenotypic regulation of smooth muscle cells. RhoA is dependent upon a stimulus, and it can drive the contractile smooth muscle cell phenotype present in the healthy condition or the (mal)adaptive phenotypes prevalent in disease or in response to injury. We hypothesize that RhoA deregulation plays a major role in vascular complications of T2DM. This protein is deregulated in T2DM smooth muscle cells, which may in part explain the functional defects of smooth muscle tissue and the subsequent failure rate of bypass in these patients. An important consideration in this circumstance is the use of statin therapies because these further inhibit RhoA activity. The effect of inhibition of RhoA activity in patients with T2DM who have a bypass is currently unknown.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Postoperative atrial fibrillation is associated with increased resource utilization after cardiac surgery: a regional analysis of the Southeastern United States 术后心房颤动与心脏手术后资源利用率增加有关:美国东南部地区分析
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2021.116
R. Hawkins, Raymond J. Strobel, M. Joseph, M. Quader, N. Teman, G. Almassi, J. Mehaffey
Aim: Postoperative atrial fibrillation (POAF) is a known risk factor for morbidity and mortality following cardiac surgery though contemporary resource utilization data is limited. We hypothesize that POAF increases the length of stay, hospital cost, and discharges to facilities, though this trend may be tempering over time. Methods: Records were extracted for all patients in a regional database who underwent coronary artery bypass grafting, aortic valve replacement, or both (2012-2020). Patients without a history of atrial fibrillation were stratified by POAF for univariate analysis. Patients were propensity-score matched to account for baseline, operative, and postoperative differences. Results: Of the 27,307 cardiac surgery patients, 23% developed POAF. Matching resulted in 5926 well-balanced pairs of patients with and without POAF. Every metric of resource utilization was higher for patients with POAF, including ICU length of stay (58 h vs. 49 h, P < 0.0001), postoperative length of stay (7 days vs. 5 days, P < 0.0001), discharge to a facility (27% vs. 23%, P < 0.0001), and readmission (11% vs. 8%). The mean additional total hospital cost attributable to POAF was $6705 by paired analysis. A sensitivity analysis of only patients without major complications demonstrated similarly increased resource utilization for patients with POAF. Conclusions: POAF was associated with an increased 9 additional ICU hours, 2 postoperative days, 18% more discharges to a facility, and 33% greater readmissions. An additional $6705 is associated with POAF. These conservative estimates demonstrate the broad impact of POAF on in and out of hospital resource utilization that warrants future efforts at containment and quality improvement.
目的:术后心房颤动(POAF)是心脏手术后发病率和死亡率的已知危险因素,但目前的资源利用数据有限。我们假设POAF增加了住院时间、医院费用和出院时间,尽管这种趋势可能随着时间的推移而缓和。方法:提取区域数据库中所有接受冠状动脉旁路移植术、主动脉瓣置换术或两者兼有的患者的记录(2012-2020)。无房颤病史的患者采用POAF分层进行单因素分析。患者倾向评分匹配,以说明基线、手术和术后差异。结果:27,307例心脏手术患者中,23%发生POAF。配对结果为5926对有或无POAF的均衡患者。POAF患者的每项资源利用指标都更高,包括ICU住院时间(58小时对49小时,P < 0.0001)、术后住院时间(7天对5天,P < 0.0001)、出院时间(27%对23%,P < 0.0001)和再入院时间(11%对8%)。通过配对分析,可归因于POAF的平均额外总医院费用为6705美元。一项仅针对无重大并发症患者的敏感性分析显示,POAF患者的资源利用率也同样增加。结论:POAF与额外的9个ICU小时、术后2天、18%的出院率和33%的再入院率相关。额外的6705美元与POAF有关。这些保守的估计表明,POAF对医院内外资源利用的广泛影响,值得未来努力遏制和提高质量。
{"title":"Postoperative atrial fibrillation is associated with increased resource utilization after cardiac surgery: a regional analysis of the Southeastern United States","authors":"R. Hawkins, Raymond J. Strobel, M. Joseph, M. Quader, N. Teman, G. Almassi, J. Mehaffey","doi":"10.20517/2574-1209.2021.116","DOIUrl":"https://doi.org/10.20517/2574-1209.2021.116","url":null,"abstract":"Aim: Postoperative atrial fibrillation (POAF) is a known risk factor for morbidity and mortality following cardiac surgery though contemporary resource utilization data is limited. We hypothesize that POAF increases the length of stay, hospital cost, and discharges to facilities, though this trend may be tempering over time. Methods: Records were extracted for all patients in a regional database who underwent coronary artery bypass grafting, aortic valve replacement, or both (2012-2020). Patients without a history of atrial fibrillation were stratified by POAF for univariate analysis. Patients were propensity-score matched to account for baseline, operative, and postoperative differences. Results: Of the 27,307 cardiac surgery patients, 23% developed POAF. Matching resulted in 5926 well-balanced pairs of patients with and without POAF. Every metric of resource utilization was higher for patients with POAF, including ICU length of stay (58 h vs. 49 h, P < 0.0001), postoperative length of stay (7 days vs. 5 days, P < 0.0001), discharge to a facility (27% vs. 23%, P < 0.0001), and readmission (11% vs. 8%). The mean additional total hospital cost attributable to POAF was $6705 by paired analysis. A sensitivity analysis of only patients without major complications demonstrated similarly increased resource utilization for patients with POAF. Conclusions: POAF was associated with an increased 9 additional ICU hours, 2 postoperative days, 18% more discharges to a facility, and 33% greater readmissions. An additional $6705 is associated with POAF. These conservative estimates demonstrate the broad impact of POAF on in and out of hospital resource utilization that warrants future efforts at containment and quality improvement.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67654370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Cytosorb® haemoadsorption: a potential game changer for patients needing myocardial surgical revascularisation Cytosorb®血液吸附:一个潜在的游戏规则改变患者需要心肌手术血运重建
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2021.61
Clarissa Ng Yin Ling, K. Umakumar, L. Moss, U. Stock, S. Raja, E. D. de Waal, N. Marczin
Cytosorb, an extracorporeal blood purification system, utilises the principles of haemoadsorption to remove low molecular weight substances from the blood, including multiple cytokines such as interleukin (IL)-1b, IL-6, IL-8, and tumour necrosis factor-α, and anti-platelet drugs aiming to improve clinical outcomes. Given the prominent role of pro-inflammatory cytokines in various inflammatory states, Cytosorb has seen growing application as a therapeutic immunomodulator including surgery. This review focuses on the effects of the use of Cytosorb in patients undergoing coronary artery bypass grafting (CABG) and the indications of removal of cytokines and anti-platelet agents such as ticagrelor. The evidence supports the feasibility and safety profile of Cytosorb, with no device-related adverse events reported in all studies. Initial studies suggest significant potential for Cytosorb in urgent or emergency CABG surgery to remove anti-platelet medication with promising benefits on clinical outcomes including fewer blood product transfusions, decreased length of intensive care unit stay, and lower re-sternotomy rates. Furthermore, a cost saving analysis indicated that intraoperative removal of ticagrelor with Cytosorb would be cost effective in the setting of emergency cardiac surgery. However, the evidence remains inconclusive when Cytosorb is used in elective CABG surgery for cytokine removal. Definite high quality clinical trials for both indications for Cytosorb in CABG surgery are needed to clarify if there is a clinically significant benefit in clinical outcomes. There is substantial trial activity for the application of Cytosorb in higher risk cardiac surgery to establish the place of Cytosorb in future treatment pathways in cardiac surgery.
Cytosorb是一种体外血液净化系统,利用血液吸附原理从血液中去除低分子量物质,包括多种细胞因子,如白细胞介素(IL)-1b、IL-6、IL-8和肿瘤坏死因子-α,以及旨在改善临床结果的抗血小板药物。鉴于促炎细胞因子在各种炎症状态中的突出作用,Cytosorb作为一种治疗性免疫调节剂(包括手术)的应用越来越广泛。本文综述了在冠状动脉旁路移植术(CABG)患者中使用Cytosorb的效果,以及去除细胞因子和抗血小板药物(如替格瑞洛)的适应症。证据支持Cytosorb的可行性和安全性,所有研究均未报告与器械相关的不良事件。初步研究表明,Cytosorb在紧急或紧急冠脉搭桥手术中具有显著的潜力,可以去除抗血小板药物,在临床结果方面有希望的益处,包括减少血液制品输血,缩短重症监护病房的住院时间,降低再次胸骨切开率。此外,一项节省成本的分析表明,在急诊心脏手术的情况下,术中使用Cytosorb去除替格瑞洛具有成本效益。然而,当选择性CABG手术中使用Cytosorb去除细胞因子时,证据仍然不确定。需要对CABG手术中使用Cytosorb的两种适应症进行明确的高质量临床试验,以明确临床结果是否有显著的临床益处。在高风险心脏手术中应用Cytosorb有大量的试验活动,以确定Cytosorb在未来心脏手术治疗途径中的地位。
{"title":"Cytosorb® haemoadsorption: a potential game changer for patients needing myocardial surgical revascularisation","authors":"Clarissa Ng Yin Ling, K. Umakumar, L. Moss, U. Stock, S. Raja, E. D. de Waal, N. Marczin","doi":"10.20517/2574-1209.2021.61","DOIUrl":"https://doi.org/10.20517/2574-1209.2021.61","url":null,"abstract":"Cytosorb, an extracorporeal blood purification system, utilises the principles of haemoadsorption to remove low molecular weight substances from the blood, including multiple cytokines such as interleukin (IL)-1b, IL-6, IL-8, and tumour necrosis factor-α, and anti-platelet drugs aiming to improve clinical outcomes. Given the prominent role of pro-inflammatory cytokines in various inflammatory states, Cytosorb has seen growing application as a therapeutic immunomodulator including surgery. This review focuses on the effects of the use of Cytosorb in patients undergoing coronary artery bypass grafting (CABG) and the indications of removal of cytokines and anti-platelet agents such as ticagrelor. The evidence supports the feasibility and safety profile of Cytosorb, with no device-related adverse events reported in all studies. Initial studies suggest significant potential for Cytosorb in urgent or emergency CABG surgery to remove anti-platelet medication with promising benefits on clinical outcomes including fewer blood product transfusions, decreased length of intensive care unit stay, and lower re-sternotomy rates. Furthermore, a cost saving analysis indicated that intraoperative removal of ticagrelor with Cytosorb would be cost effective in the setting of emergency cardiac surgery. However, the evidence remains inconclusive when Cytosorb is used in elective CABG surgery for cytokine removal. Definite high quality clinical trials for both indications for Cytosorb in CABG surgery are needed to clarify if there is a clinically significant benefit in clinical outcomes. There is substantial trial activity for the application of Cytosorb in higher risk cardiac surgery to establish the place of Cytosorb in future treatment pathways in cardiac surgery.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Atrial fibrillation in mechanical circulatory support patients 机械循环支持患者心房颤动
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2021.136
J. Obeid, Ashutosh Yaligar, A. Mclarty, H. Tannous, T. Bilfinger, A. L. Shroyer
Atrial fibrillation (AF) is known to be one of the most common arrhythmias noted in cardiac procedures and is frequently associated with heart failure. As frequent interventions for patients with heart failure involve implantation of mechanical circulatory assist devices (e.g., left ventricular assist devices), it is timely to review the role this arrhythmia has on adverse clinical outcomes. A comprehensive literature search was conducted for PubMed. Relevant medical subject heading (MeSH) terms used in the initial literature search include “Heart-Assist Devices”, “Extracorporeal Membrane Oxygenation”, “Atrial Fibrillation”, “Heart Failure”, “Mortality”, “Hospital Readmission”, “stroke”, “Postoperative Complications”. In this review, the relevant literature was highlighted to identify the incidence, clinical impacts, and management of AF surrounding mechanical circulatory support implantation. The incidence of AF in this mechanical circulatory support device population was similar to that of patients with other cardiac procedures (10%-40%). Moreover, in most studies, preoperative AF was not significantly associated with adverse outcomes. In contrast, however, it appears that postoperative atrial fibrillation may predispose patients to increased risk for thromboembolic events and adverse long-term outcomes.
心房颤动(AF)是心脏手术中最常见的心律失常之一,通常与心力衰竭有关。由于心力衰竭患者的频繁干预涉及机械循环辅助装置(如左心室辅助装置)的植入,因此回顾这种心律失常对不良临床结果的作用是及时的。对PubMed进行了全面的文献检索。在初始文献检索中使用的相关医学主题标题(MeSH)术语包括“心脏辅助装置”、“体外膜氧合”、“心房颤动”、“心力衰竭”、“死亡率”、“再入院”、“中风”、“术后并发症”。在这篇综述中,重点介绍了相关文献,以确定AF的发生率,临床影响和处理机械循环支持植入。在使用机械循环支持装置的人群中,房颤的发生率与接受其他心脏手术的患者相似(10%-40%)。此外,在大多数研究中,术前房颤与不良结局没有显著相关。然而,相比之下,术后心房颤动可能使患者易患血栓栓塞事件和不良长期预后的风险增加。
{"title":"Atrial fibrillation in mechanical circulatory support patients","authors":"J. Obeid, Ashutosh Yaligar, A. Mclarty, H. Tannous, T. Bilfinger, A. L. Shroyer","doi":"10.20517/2574-1209.2021.136","DOIUrl":"https://doi.org/10.20517/2574-1209.2021.136","url":null,"abstract":"Atrial fibrillation (AF) is known to be one of the most common arrhythmias noted in cardiac procedures and is frequently associated with heart failure. As frequent interventions for patients with heart failure involve implantation of mechanical circulatory assist devices (e.g., left ventricular assist devices), it is timely to review the role this arrhythmia has on adverse clinical outcomes. A comprehensive literature search was conducted for PubMed. Relevant medical subject heading (MeSH) terms used in the initial literature search include “Heart-Assist Devices”, “Extracorporeal Membrane Oxygenation”, “Atrial Fibrillation”, “Heart Failure”, “Mortality”, “Hospital Readmission”, “stroke”, “Postoperative Complications”. In this review, the relevant literature was highlighted to identify the incidence, clinical impacts, and management of AF surrounding mechanical circulatory support implantation. The incidence of AF in this mechanical circulatory support device population was similar to that of patients with other cardiac procedures (10%-40%). Moreover, in most studies, preoperative AF was not significantly associated with adverse outcomes. In contrast, however, it appears that postoperative atrial fibrillation may predispose patients to increased risk for thromboembolic events and adverse long-term outcomes.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New endovascular techniques for false lumen thrombosis in aortic dissection after thoracic endovascular aortic repair 胸主动脉腔内修复术后主动脉夹层假腔血栓的血管内新技术
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2022.04
F. Buia, V. Russo, D. Attinà, F. Niro, L. Lovato
Over the past decades, both open surgery and endovascular treatment of aortic dissection have made great progress with good clinical outcomes. However, despite this progress, the presence of distal re-entry tears can sustain perfusion of false lumen (FL) and induce aneurysm formation or growth. In particular, about 20% of patients undergoing thoracic endovascular aortic repair (TEVAR) for aortic dissection require reintervention because of incomplete FL thrombosis promoting aortic wall degeneration, post-dissection aortic aneurysm, and rupture. Endovascular techniques to promote FL thrombosis after TEVAR show good early results together with minimal invasiveness, offering different alternatives depending on the case and the level of urgency. Endovascular techniques include FL embolization (with coils, vascular plugs, etc.), candy-plug techniques, parallel stent graft, and branched and fenestrated aortic endoprosthesis. Each of these solutions has advantages and disadvantages. We herein describe the available endovascular options.
近几十年来,主动脉夹层的开放手术和血管内治疗都取得了很大进展,临床效果良好。然而,尽管取得了这一进展,但远端再入性撕裂的存在可以维持假腔(FL)的灌注并诱导动脉瘤的形成或生长。特别是,约有20%的胸椎血管内主动脉瓣修复术(TEVAR)患者需要再次介入治疗,因为不完全FL血栓形成促进主动脉壁退变,夹层后动脉瘤和破裂。血管内技术促进TEVAR后FL血栓形成的早期效果良好,且微创,根据病例和紧急程度提供不同的选择。血管内技术包括FL栓塞(线圈、血管塞等)、糖塞技术、平行支架移植、支开窗主动脉内假体。每种解决方案都有优点和缺点。我们在此描述可用的血管内选择。
{"title":"New endovascular techniques for false lumen thrombosis in aortic dissection after thoracic endovascular aortic repair","authors":"F. Buia, V. Russo, D. Attinà, F. Niro, L. Lovato","doi":"10.20517/2574-1209.2022.04","DOIUrl":"https://doi.org/10.20517/2574-1209.2022.04","url":null,"abstract":"Over the past decades, both open surgery and endovascular treatment of aortic dissection have made great progress with good clinical outcomes. However, despite this progress, the presence of distal re-entry tears can sustain perfusion of false lumen (FL) and induce aneurysm formation or growth. In particular, about 20% of patients undergoing thoracic endovascular aortic repair (TEVAR) for aortic dissection require reintervention because of incomplete FL thrombosis promoting aortic wall degeneration, post-dissection aortic aneurysm, and rupture. Endovascular techniques to promote FL thrombosis after TEVAR show good early results together with minimal invasiveness, offering different alternatives depending on the case and the level of urgency. Endovascular techniques include FL embolization (with coils, vascular plugs, etc.), candy-plug techniques, parallel stent graft, and branched and fenestrated aortic endoprosthesis. Each of these solutions has advantages and disadvantages. We herein describe the available endovascular options.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cardiac amyloidosis: the pathologist’s point of view 心脏淀粉样变:病理学家的观点
Pub Date : 2022-01-01 DOI: 10.20517/2574-1209.2022.05
M. De Gaspari, N. Finato, C. Basso
Cardiac amyloidosis is a well-known entity recently recognized as a common etiology of heart failure. This infiltrative disease is caused by the deposition of misfolded proteins within the heart. The most common types of cardiac amyloidosis result from fibrils composed of monoclonal immunoglobulin light chains or transthyretin. Clinical presentation is usually elusive, and this can result in diagnostic delay. Diagnosis can be reached with non-invasive methods, but it often requires tissue sampling with pathological analysis. It is fundamental to determine the type of protein being deposited in order to indicate the specific treatment. In this article, we review the main features of cardiac amyloidosis with a focus on different pathological presentations of this rare disorder.
心脏淀粉样变是一种众所周知的实体,最近被认为是心力衰竭的常见病因。这种浸润性疾病是由错误折叠的蛋白质在心脏内沉积引起的。最常见的心脏淀粉样变类型是由单克隆免疫球蛋白轻链或甲状腺转甲状腺素组成的原纤维引起的。临床表现通常难以捉摸,这可能导致诊断延误。诊断可以通过非侵入性方法达到,但通常需要组织取样和病理分析。为了指示具体的处理方法,确定沉积的蛋白质类型是至关重要的。在这篇文章中,我们回顾了心脏淀粉样变性的主要特征,并重点介绍了这种罕见疾病的不同病理表现。
{"title":"Cardiac amyloidosis: the pathologist’s point of view","authors":"M. De Gaspari, N. Finato, C. Basso","doi":"10.20517/2574-1209.2022.05","DOIUrl":"https://doi.org/10.20517/2574-1209.2022.05","url":null,"abstract":"Cardiac amyloidosis is a well-known entity recently recognized as a common etiology of heart failure. This infiltrative disease is caused by the deposition of misfolded proteins within the heart. The most common types of cardiac amyloidosis result from fibrils composed of monoclonal immunoglobulin light chains or transthyretin. Clinical presentation is usually elusive, and this can result in diagnostic delay. Diagnosis can be reached with non-invasive methods, but it often requires tissue sampling with pathological analysis. It is fundamental to determine the type of protein being deposited in order to indicate the specific treatment. In this article, we review the main features of cardiac amyloidosis with a focus on different pathological presentations of this rare disorder.","PeriodicalId":75299,"journal":{"name":"Vessel plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Vessel plus
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1