首页 > 最新文献

Research in Cardiovascular Medicine最新文献

英文 中文
Postoperative neurological deficits with incidence and the various arterial territories involved in patients undergoing congenital cardiac surgery: A single-center analysis 先天性心脏手术患者术后神经功能缺损的发生率和涉及的不同动脉区域:单中心分析
IF 0.3 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-07-01 DOI: 10.4103/rcm.rcm_40_23
Kumar Rahul, Pankaj Garg, Vishal Aggarwal, Sarvesh Kumar, Vivek Tewarson, Karan Kaushik, Satish Kumar
Introduction: The incidence and pattern of neurological complications after congenital cardiac surgery have been changing over the years due to improvement in surgical technique and perioperative management. The aim of this study was to evaluate the incidence and pattern of neurological injury in our institute. Materials and Methods: We retrospectively reviewed all pediatric patients who underwent noncontrast computed tomography of the brain for suspected postoperative neurological injury occurring during the 1st week after pediatric cardiac surgery between April 2016 and February 2020. We identified neurological injury as patients having ischemic infarct and intracranial hemorrhage. Results: A total of 2971 pediatric cardiac surgeries were performed at our institute. Sixty-seven patients (2.25%) developed neurological injury. Fifty-five patients (82%) developed ischemic infarct while 12 patients (18%) had intracranial hemorrhagic. Pattern of ischemic infarct included global hypoxic injury in 30 patients (54.5%), posterior cerebral artery territory in 9 patients (16.3%), middle cerebral artery territory in 8 patients (14.5%), multiterritory involvement in 5 patients (9.0%), and anterior cerebral artery territory in 3 patients (5.4%). In patients with intracranial hemorrhage, 5 patients (7.4%) developed subarachnoid hemorrhage (SAH), 4 patients (5.9%) developed subdural hemorrhage, and 3 patients (4.4%) developed intraparenchymal hemorrhage. Conclusions: Neurological complication accounts for significant morbidity and mortality after congenital cardiac surgery. In our study, ischemic infarct accounted for 82% cases. In ischemic infarct, global ischemia was the most common type and carried high risk of mortality. In hemorrhage group, SAH was the most common finding. Nevertheless, the aim of this study was to characterize the current incidence of acute clinically evident neurologic complications in children undergoing congenital cardiac surgery in a tertiary hospital, although acute neurologic morbidity appears to be appreciably lower than in the past at our institution.
导言:多年来,由于手术技术和围手术期管理的改进,先天性心脏手术后神经系统并发症的发生率和模式一直在发生变化。本研究旨在评估我院神经系统损伤的发生率和模式。材料和方法:我们回顾性研究了 2016 年 4 月至 2020 年 2 月期间,因怀疑术后神经损伤而在小儿心脏手术后第一周内接受脑部非对比计算机断层扫描的所有小儿患者。我们将神经损伤认定为缺血性梗死和颅内出血患者。结果:我院共进行了 2971 例小儿心脏手术。67名患者(2.25%)出现神经损伤。55名患者(82%)发生缺血性梗死,12名患者(18%)发生颅内出血。缺血性梗死的模式包括:30 名患者(54.5%)出现整体缺氧性损伤,9 名患者(16.3%)出现大脑后动脉区域,8 名患者(14.5%)出现大脑中动脉区域,5 名患者(9.0%)出现多区域受累,3 名患者(5.4%)出现大脑前动脉区域。在颅内出血患者中,5 名患者(7.4%)出现蛛网膜下腔出血(SAH),4 名患者(5.9%)出现硬膜下出血,3 名患者(4.4%)出现脑实质内出血。结论是神经系统并发症是先天性心脏病手术后的重要发病率和死亡率来源。在我们的研究中,缺血性梗死占 82%。在缺血性梗死中,全身缺血是最常见的类型,其死亡率也很高。在出血组中,SAH 是最常见的发现。尽管如此,本研究的目的还是为了描述目前在一家三甲医院接受先天性心脏病手术的儿童中临床上明显的急性神经系统并发症的发生率,尽管在我们医院,急性神经系统发病率似乎比过去明显降低。
{"title":"Postoperative neurological deficits with incidence and the various arterial territories involved in patients undergoing congenital cardiac surgery: A single-center analysis","authors":"Kumar Rahul, Pankaj Garg, Vishal Aggarwal, Sarvesh Kumar, Vivek Tewarson, Karan Kaushik, Satish Kumar","doi":"10.4103/rcm.rcm_40_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_40_23","url":null,"abstract":"Introduction: The incidence and pattern of neurological complications after congenital cardiac surgery have been changing over the years due to improvement in surgical technique and perioperative management. The aim of this study was to evaluate the incidence and pattern of neurological injury in our institute. Materials and Methods: We retrospectively reviewed all pediatric patients who underwent noncontrast computed tomography of the brain for suspected postoperative neurological injury occurring during the 1st week after pediatric cardiac surgery between April 2016 and February 2020. We identified neurological injury as patients having ischemic infarct and intracranial hemorrhage. Results: A total of 2971 pediatric cardiac surgeries were performed at our institute. Sixty-seven patients (2.25%) developed neurological injury. Fifty-five patients (82%) developed ischemic infarct while 12 patients (18%) had intracranial hemorrhagic. Pattern of ischemic infarct included global hypoxic injury in 30 patients (54.5%), posterior cerebral artery territory in 9 patients (16.3%), middle cerebral artery territory in 8 patients (14.5%), multiterritory involvement in 5 patients (9.0%), and anterior cerebral artery territory in 3 patients (5.4%). In patients with intracranial hemorrhage, 5 patients (7.4%) developed subarachnoid hemorrhage (SAH), 4 patients (5.9%) developed subdural hemorrhage, and 3 patients (4.4%) developed intraparenchymal hemorrhage. Conclusions: Neurological complication accounts for significant morbidity and mortality after congenital cardiac surgery. In our study, ischemic infarct accounted for 82% cases. In ischemic infarct, global ischemia was the most common type and carried high risk of mortality. In hemorrhage group, SAH was the most common finding. Nevertheless, the aim of this study was to characterize the current incidence of acute clinically evident neurologic complications in children undergoing congenital cardiac surgery in a tertiary hospital, although acute neurologic morbidity appears to be appreciably lower than in the past at our institution.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"13 1","pages":"84 - 88"},"PeriodicalIF":0.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139366104","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
An unusual presentation of a rare case of rhabdomyosarcoma of the left atrium as severe rheumatic mitral stenosis with atrial fibrillation, fast ventricular rate, and left atrial failure 一例罕见的左心房横纹肌肉瘤病例,表现为严重的风湿性二尖瓣狭窄,伴有心房颤动、快速心室率和左心房衰竭
IF 0.3 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-07-01 DOI: 10.4103/rcm.rcm_2_23
Satyapriya Mohanty, Abhinav Kumar, A. Banerjee, Pranjit Deb, Debasish Das
It is extremely rare to encounter primary malignant tumors of the heart. Rhabdomyoma constitutes approximately 20% of all primary malignant tumors of the heart. Rhabdomyoma commonly arises from the ventricular wall, and rarely, they arise from the atrial wall and mimic symptomatic atrioventricular valve stenosis. We describe an extremely rare case of left atrial (LA) rhabdomyosarcoma detected during the transesophageal echocardiography arising from the posterior wall of the left atrium protruding into the left ventricle causing obstruction of the mitral valve. Our case is a rare case of LA rhabdomyosarcoma presenting with mitral inflow obstruction and symptomatically mimicking severe rheumatic mitral stenosis with atrial fibrillation and fast ventricular rate with orthopnea secondary to LA failure and passive pulmonary venous congestion.
心脏原发性恶性肿瘤极为罕见。横纹肌瘤约占所有心脏原发性恶性肿瘤的 20%。横纹肌瘤通常发生于心室壁,也有极少数发生于心房壁,并模仿症状性房室瓣狭窄。我们描述了一例极为罕见的左心房(LA)横纹肌肉瘤病例,该瘤在经食道超声心动图检查中被发现,它从左心房后壁突入左心室,导致二尖瓣阻塞。我们的病例是一个罕见的LA横纹肌肉瘤病例,表现为二尖瓣流入道阻塞,症状类似严重的风湿性二尖瓣狭窄,伴有心房颤动和快速心室率,并因LA衰竭和被动肺静脉充血而出现呼吸困难。
{"title":"An unusual presentation of a rare case of rhabdomyosarcoma of the left atrium as severe rheumatic mitral stenosis with atrial fibrillation, fast ventricular rate, and left atrial failure","authors":"Satyapriya Mohanty, Abhinav Kumar, A. Banerjee, Pranjit Deb, Debasish Das","doi":"10.4103/rcm.rcm_2_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_2_23","url":null,"abstract":"It is extremely rare to encounter primary malignant tumors of the heart. Rhabdomyoma constitutes approximately 20% of all primary malignant tumors of the heart. Rhabdomyoma commonly arises from the ventricular wall, and rarely, they arise from the atrial wall and mimic symptomatic atrioventricular valve stenosis. We describe an extremely rare case of left atrial (LA) rhabdomyosarcoma detected during the transesophageal echocardiography arising from the posterior wall of the left atrium protruding into the left ventricle causing obstruction of the mitral valve. Our case is a rare case of LA rhabdomyosarcoma presenting with mitral inflow obstruction and symptomatically mimicking severe rheumatic mitral stenosis with atrial fibrillation and fast ventricular rate with orthopnea secondary to LA failure and passive pulmonary venous congestion.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"31 1","pages":"93 - 95"},"PeriodicalIF":0.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139364421","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
Transcatheter closure of the aortopulmonary window with a multifunctional occluder device 使用多功能闭塞器经导管关闭主动脉肺窗
IF 0.3 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-07-01 DOI: 10.4103/rcm.rcm_42_23
Amit Mandal
Aortopulmonary window (APW) is a rare congenital heart disease. In general, surgical closure is the mainstay of treatment. There are few case reports describing transcatheter closure of an APW. Here we report a case of a APW device closure under general anaesthesia by a multifunctional occluder device in a three-year-old boy.
主动脉肺窗(APW)是一种罕见的先天性心脏病。一般来说,手术闭合是治疗的主要方法。描述经导管关闭 APW 的病例报告很少。在此,我们报告了一例在全身麻醉下使用多功能闭塞器闭合 APW 的病例,患者是一名三岁男孩。
{"title":"Transcatheter closure of the aortopulmonary window with a multifunctional occluder device","authors":"Amit Mandal","doi":"10.4103/rcm.rcm_42_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_42_23","url":null,"abstract":"Aortopulmonary window (APW) is a rare congenital heart disease. In general, surgical closure is the mainstay of treatment. There are few case reports describing transcatheter closure of an APW. Here we report a case of a APW device closure under general anaesthesia by a multifunctional occluder device in a three-year-old boy.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"10 1","pages":"96 - 97"},"PeriodicalIF":0.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365235","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
Predictions of adherence to treatment in patients referred to the heart failure clinic of Shahid Rajaee Hospital in Tehran 德黑兰 Shahid Rajaee 医院心力衰竭门诊转诊患者坚持治疗情况预测
IF 0.3 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-07-01 DOI: 10.4103/rcm.rcm_38_23
Sidhi Laksono
{"title":"Predictions of adherence to treatment in patients referred to the heart failure clinic of Shahid Rajaee Hospital in Tehran","authors":"Sidhi Laksono","doi":"10.4103/rcm.rcm_38_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_38_23","url":null,"abstract":"","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"55 1","pages":"102 - 102"},"PeriodicalIF":0.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365332","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
The association between statin dosage and malignant ventricular arrhythmias in patients with primary prevention implantable cardioverter-defibrillators for ischemic cardiomyopathy 他汀类药物剂量与因缺血性心肌病而使用植入式心律转复除颤器进行一级预防的患者恶性室性心律失常之间的关系
IF 0.3 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-07-01 DOI: 10.4103/rcm.rcm_45_23
Ö. Karaaslan, Atik Aksoy, Murat Oğuz Özilhan, Ü. Güray, M. Selçuk, H. Selçuk, O. Maden
Background: Malignant ventricular arrhythmias are a common cause of death in ischemic heart diseases. Implantable cardioverter-defibrillators (ICDs) demonstrate significant efficacy in reducing mortality linked to ventricular arrhythmias. Statins exhibit the potential to stabilize the atherosclerotic and ischemic burden, thereby potentially manifesting indirect anti-arrhythmic effects. This study evaluated the relationship between statin levels and arrhythmic events in patients with primary prevention ICDs for ischemic cardiomyopathy. Methods: This study was conducted as a retrospective observational study at a single center, involving consecutive patients who were admitted to the cardiology outpatient clinic and underwent primary prevention ICD. The study population was stratified into two groups based on statin usage. Results: This study included a cohort of 80 patients diagnosed with ischemic cardiomyopathy who underwent primary prevention implantation of ICDs. Group 1 consisted of 24 patients who were prescribed low-dose statins, whereas Group 2 consisted of 56 patients who were prescribed high-dose statins. Univariate and multivariate analyses showed that left ventricular ejection fraction and use of low-dose statins were independent predictors of arrhythmic events. Conclusion: The study cohort exhibited comparable clinical and laboratory characteristics, suggesting that statin dosage is associated with malignant arrhythmic events in a homogeneous patient population.
背景:恶性室性心律失常是缺血性心脏病的常见死因。植入式心律转复除颤器(ICD)在降低与室性心律失常相关的死亡率方面具有显著疗效。他汀类药物具有稳定动脉粥样硬化和缺血负担的潜力,因此可能具有间接抗心律失常的作用。本研究评估了因缺血性心肌病而使用一级预防 ICD 的患者体内他汀类药物水平与心律失常事件之间的关系。研究方法本研究是在一个中心进行的回顾性观察研究,研究对象是在心脏病学门诊就诊并接受 ICD 一级预防的连续患者。根据他汀类药物的使用情况将研究对象分为两组。研究结果该研究包括 80 名被诊断为缺血性心肌病并接受 ICD 一级预防植入术的患者。第一组包括 24 名服用低剂量他汀类药物的患者,第二组包括 56 名服用高剂量他汀类药物的患者。单变量和多变量分析表明,左心室射血分数和使用低剂量他汀类药物是心律失常事件的独立预测因素。结论研究队列具有相似的临床和实验室特征,这表明他汀类药物的剂量与同质患者群体中的恶性心律失常事件有关。
{"title":"The association between statin dosage and malignant ventricular arrhythmias in patients with primary prevention implantable cardioverter-defibrillators for ischemic cardiomyopathy","authors":"Ö. Karaaslan, Atik Aksoy, Murat Oğuz Özilhan, Ü. Güray, M. Selçuk, H. Selçuk, O. Maden","doi":"10.4103/rcm.rcm_45_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_45_23","url":null,"abstract":"Background: Malignant ventricular arrhythmias are a common cause of death in ischemic heart diseases. Implantable cardioverter-defibrillators (ICDs) demonstrate significant efficacy in reducing mortality linked to ventricular arrhythmias. Statins exhibit the potential to stabilize the atherosclerotic and ischemic burden, thereby potentially manifesting indirect anti-arrhythmic effects. This study evaluated the relationship between statin levels and arrhythmic events in patients with primary prevention ICDs for ischemic cardiomyopathy. Methods: This study was conducted as a retrospective observational study at a single center, involving consecutive patients who were admitted to the cardiology outpatient clinic and underwent primary prevention ICD. The study population was stratified into two groups based on statin usage. Results: This study included a cohort of 80 patients diagnosed with ischemic cardiomyopathy who underwent primary prevention implantation of ICDs. Group 1 consisted of 24 patients who were prescribed low-dose statins, whereas Group 2 consisted of 56 patients who were prescribed high-dose statins. Univariate and multivariate analyses showed that left ventricular ejection fraction and use of low-dose statins were independent predictors of arrhythmic events. Conclusion: The study cohort exhibited comparable clinical and laboratory characteristics, suggesting that statin dosage is associated with malignant arrhythmic events in a homogeneous patient population.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"9 1","pages":"89 - 92"},"PeriodicalIF":0.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365425","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
Complicated aortic root enlargement in a patient who underwent aortic valve replacement 主动脉瓣置换术患者并发主动脉根部扩大
IF 0.3 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-07-01 DOI: 10.4103/rcm.rcm_46_23
M. Shojaeifard, Pegah Salehi, Mahsa Akbarian, Somayeh Mohebbi, M. Alavi, Leyla Aliabadi, Sara Shemshadi, Saied Hosseini
For patients with a small aorta, surgeons may use techniques such as the Manouguian method in addition to aortic valve replacement (AVR) to prevent patient prosthetic mismatch. These methods have been shown to have good outcomes and few complications. However, in this case presentation, a rare complication occurred in a 47-year-old woman who underwent AVR plus Manouguian surgery. After the surgery, her echocardiography revealed iatrogenic supra-aortic stenosis. The diagnosis was confirmed with computed tomography angiography, and the patient underwent surgery again at the site of the stenosis. Fortunately, the surgery was successful, and the stenosis was completely resolved.
对于主动脉较小的患者,外科医生可能会在主动脉瓣置换术(AVR)的基础上使用马努吉安法等技术,以防止患者假体不匹配。这些方法已被证明具有良好的疗效和较少的并发症。然而,在本病例中,一名 47 岁的女性在接受了 AVR 加 Manouguian 手术后出现了罕见的并发症。术后,她的超声心动图显示有先天性主动脉瓣上狭窄。计算机断层扫描血管造影证实了这一诊断,患者在狭窄部位再次接受了手术。幸运的是,手术很成功,狭窄完全消除。
{"title":"Complicated aortic root enlargement in a patient who underwent aortic valve replacement","authors":"M. Shojaeifard, Pegah Salehi, Mahsa Akbarian, Somayeh Mohebbi, M. Alavi, Leyla Aliabadi, Sara Shemshadi, Saied Hosseini","doi":"10.4103/rcm.rcm_46_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_46_23","url":null,"abstract":"For patients with a small aorta, surgeons may use techniques such as the Manouguian method in addition to aortic valve replacement (AVR) to prevent patient prosthetic mismatch. These methods have been shown to have good outcomes and few complications. However, in this case presentation, a rare complication occurred in a 47-year-old woman who underwent AVR plus Manouguian surgery. After the surgery, her echocardiography revealed iatrogenic supra-aortic stenosis. The diagnosis was confirmed with computed tomography angiography, and the patient underwent surgery again at the site of the stenosis. Fortunately, the surgery was successful, and the stenosis was completely resolved.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"5 1","pages":"98 - 101"},"PeriodicalIF":0.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139366227","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
Prognostic value of cardiac and noncardiac biomarkers in infective endocarditis: A prospective cross-sectional study 感染性心内膜炎的心脏和非心脏生物标志物的预后价值:前瞻性横断面研究
IF 0.3 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-07-01 DOI: 10.4103/rcm.rcm_12_23
S. Boudagh, Mohammad Amin Shahrbaf, A. Sadeghpour, Shirin Manshouri, M. Kamali, Akbar Nikpajouh, H. Bodagh, H. Pasha, P. Moradnejad
Background and Aims: Infective endocarditis (IE) is associated with several morbidities and high rate of mortality. Predicting these morbidities can be helpful in managing patients and can prevent possible complications, result from IE. In this study, we aimed to evaluate the association between C-reactive protein (CRP), N-terminal pro brain natriuretic peptide (BNP), monocyte to high density lipoprotein (HDL) ratio Charlson comorbidity index, and European System for Cardiac Operative Risk Evaluation (Euro SCORE) in complicated cases of IE. Materials and Methods: This prospective study was conducted on a referral center from January 2017 to December 2020. Patients with definite or possible diagnosis of IE based on the modified Duke criteria were included in this study. Demographic information and serum levels of N-terminal pro BNP, D-Dimer, CRP were evaluated in patients. In addition, we used Charlson comorbidity index and The Euro SCORE for subjective assessment. Results: One hundred and four patients (64 males, median age: 58) included in the final analysis. Intracardiac involvement, central nervous system (CNS) complications and systemic complications were observed in nine patients (9.7%), 16 patients (15.4%), and eight patients (7.7%) respectively. The mortality rate was 14.4%. D-dimer (P = 0.008), pro-BNP (P = 0.008), and Charlson criteria (P = 0.012) were higher in patients with systematic complications. In addition, NT pro-BNP was significantly associated with CNS complications (P = 0.04) and D-Dimer level was significantly associated with in-hospital mortality (P = 0.008). Conclusion: Serum biomarkers such as pro-BNP and D-dimer, and comorbidity indices can be used for risk stratification of patients with IE. The level of pro-BNP is significantly associated with CNS complications and the level of D-dimer is significantly with mortality in patients with IE.
背景和目的:感染性心内膜炎(IE)与多种疾病和高死亡率有关。预测这些发病率有助于管理患者并预防 IE 可能导致的并发症。在这项研究中,我们旨在评估复杂 IE 病例中 C 反应蛋白(CRP)、N 末端脑钠肽 (BNP)、单核细胞与高密度脂蛋白(HDL)之比、夏尔森合并症指数(Charlson comorbidity index)和欧洲心脏手术风险评估系统(Euro System for Cardiac Operative Risk Evaluation,Euro SCORE)之间的关联。材料与方法:这项前瞻性研究于 2017 年 1 月至 2020 年 12 月在一家转诊中心进行。研究纳入了根据修改后的杜克标准确诊或可能确诊为 IE 的患者。我们评估了患者的人口统计学信息和血清中N末端前BNP、D-二聚体、CRP的水平。此外,我们还使用了 Charlson 合并症指数和欧洲 SCORE 进行主观评估。结果最终分析共纳入 144 名患者(64 名男性,中位年龄:58 岁)。分别有9名患者(9.7%)、16名患者(15.4%)和8名患者(7.7%)出现心内膜受累、中枢神经系统(CNS)并发症和全身并发症。死亡率为 14.4%。有系统性并发症的患者 D-二聚体(P = 0.008)、pro-BNP(P = 0.008)和 Charlson 标准(P = 0.012)较高。此外,NT pro-BNP 与中枢神经系统并发症显著相关(P = 0.04),D-二聚体水平与院内死亡率显著相关(P = 0.008)。结论血清生物标志物(如 Pro-BNP、D-二聚体)和合并症指数可用于 IE 患者的风险分层。IE患者的前BNP水平与中枢神经系统并发症显著相关,D-二聚体水平与死亡率显著相关。
{"title":"Prognostic value of cardiac and noncardiac biomarkers in infective endocarditis: A prospective cross-sectional study","authors":"S. Boudagh, Mohammad Amin Shahrbaf, A. Sadeghpour, Shirin Manshouri, M. Kamali, Akbar Nikpajouh, H. Bodagh, H. Pasha, P. Moradnejad","doi":"10.4103/rcm.rcm_12_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_12_23","url":null,"abstract":"Background and Aims: Infective endocarditis (IE) is associated with several morbidities and high rate of mortality. Predicting these morbidities can be helpful in managing patients and can prevent possible complications, result from IE. In this study, we aimed to evaluate the association between C-reactive protein (CRP), N-terminal pro brain natriuretic peptide (BNP), monocyte to high density lipoprotein (HDL) ratio Charlson comorbidity index, and European System for Cardiac Operative Risk Evaluation (Euro SCORE) in complicated cases of IE. Materials and Methods: This prospective study was conducted on a referral center from January 2017 to December 2020. Patients with definite or possible diagnosis of IE based on the modified Duke criteria were included in this study. Demographic information and serum levels of N-terminal pro BNP, D-Dimer, CRP were evaluated in patients. In addition, we used Charlson comorbidity index and The Euro SCORE for subjective assessment. Results: One hundred and four patients (64 males, median age: 58) included in the final analysis. Intracardiac involvement, central nervous system (CNS) complications and systemic complications were observed in nine patients (9.7%), 16 patients (15.4%), and eight patients (7.7%) respectively. The mortality rate was 14.4%. D-dimer (P = 0.008), pro-BNP (P = 0.008), and Charlson criteria (P = 0.012) were higher in patients with systematic complications. In addition, NT pro-BNP was significantly associated with CNS complications (P = 0.04) and D-Dimer level was significantly associated with in-hospital mortality (P = 0.008). Conclusion: Serum biomarkers such as pro-BNP and D-dimer, and comorbidity indices can be used for risk stratification of patients with IE. The level of pro-BNP is significantly associated with CNS complications and the level of D-dimer is significantly with mortality in patients with IE.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"49 1","pages":"79 - 83"},"PeriodicalIF":0.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139365168","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
Utility of preoperative brain natriuretic peptide and cardiac troponin I in predicting perioperative major adverse cardiovascular events in elderly patients undergoing noncardiac surgery 术前脑利钠肽和心肌肌钙蛋白I在预测老年非心脏手术患者围手术期主要不良心血管事件中的应用
Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-01-01 DOI: 10.4103/rcm.rcm_18_23
Sujay Renga, AnakhaAbdul Shereef Sabiathu Beevi
Background: Major adverse cardiovascular events (MACEs) are frequently encountered in patients undergoing noncardiac surgeries. This study evaluated the utility of cardiac troponin I (cTnI) and brain natriuretic peptide (BNP) to predict MACE in elderly patients (aged ≥60 years) undergoing noncardiac surgeries. Methods: This comparative cross-sectional study was carried out at a tertiary care center in India between November 2016 and August 2018. A total of 136 consecutive patients (aged ≥60 years) presenting for noncardiac surgeries under general/spinal/regional anesthesia in the departments of surgery, orthopedics, or gynecology were included in the study. Patients with chronic kidney disease stages 4 and 5 and those receiving hemodialysis or peritoneal dialysis for renal failure were excluded from the study. Peripheral blood samples for BNP and cTnI were obtained within 24 h preoperatively. The primary endpoint was the occurrence of MACE, defined as the composite of cardiac death, nonfatal myocardial infarction, heart failure, arrhythmias, and cardiac arrest at 6 days postsurgery. Results: The mean age of patients was 69.41 ± 7.56 years. Females comprised 54.1% of the study population. During the perioperative period and follow-up of 6 days, 12 MACE were recorded. Preoperative cTnI levels alone or both cTnI and BNP together (cTnI levels >0.07 ng/mL and BNP levels >40 pg/mL) increased significantly in the patients who experienced MACE (P < 0.05). The area under receiver operating characteristics curve for cTnI and BNP for predicting perioperative cardiac events was 0.817 (95% confidence interval [CI] 0.646–0.988; P < 0.001) and 0.520 (95% CI 0.337–0.704; P = 0.817), respectively. Conclusions: In elderly patients undergoing noncardiac surgeries, a preoperative assessment of BNP and cTnI may help in the assessment of MACE.
背景:重大不良心血管事件(mace)在接受非心脏手术的患者中经常遇到。本研究评估了心肌肌钙蛋白I (cTnI)和脑利钠肽(BNP)在预测老年(≥60岁)非心脏手术患者MACE中的应用。方法:这项比较横断面研究于2016年11月至2018年8月在印度的一家三级医疗中心进行。在外科、骨科或妇科接受全身/脊柱/区域麻醉的非心脏手术的136例连续患者(年龄≥60岁)被纳入研究。慢性肾脏疾病4期和5期患者以及因肾衰竭而接受血液透析或腹膜透析的患者被排除在研究之外。术前24 h内取外周血BNP和cTnI检测。主要终点是MACE的发生,MACE定义为术后6天心脏死亡、非致死性心肌梗死、心力衰竭、心律失常和心脏骤停的综合情况。结果:患者平均年龄69.41±7.56岁。女性占研究人群的54.1%。围手术期及随访6 d,共记录MACE 12例。MACE患者术前cTnI水平单独升高或cTnI和BNP水平同时升高(cTnI水平>0.07 ng/mL, BNP水平>40 pg/mL),差异均有统计学意义(P < 0.05)。cTnI和BNP预测围手术期心脏事件的受试者工作特征曲线下面积为0.817(95%可信区间[CI] 0.646-0.988;P < 0.001)和0.520 (95% CI 0.337-0.704;P = 0.817)。结论:在接受非心脏手术的老年患者中,术前评估BNP和cTnI可能有助于评估MACE。
{"title":"Utility of preoperative brain natriuretic peptide and cardiac troponin I in predicting perioperative major adverse cardiovascular events in elderly patients undergoing noncardiac surgery","authors":"Sujay Renga, AnakhaAbdul Shereef Sabiathu Beevi","doi":"10.4103/rcm.rcm_18_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_18_23","url":null,"abstract":"Background: Major adverse cardiovascular events (MACEs) are frequently encountered in patients undergoing noncardiac surgeries. This study evaluated the utility of cardiac troponin I (cTnI) and brain natriuretic peptide (BNP) to predict MACE in elderly patients (aged ≥60 years) undergoing noncardiac surgeries. Methods: This comparative cross-sectional study was carried out at a tertiary care center in India between November 2016 and August 2018. A total of 136 consecutive patients (aged ≥60 years) presenting for noncardiac surgeries under general/spinal/regional anesthesia in the departments of surgery, orthopedics, or gynecology were included in the study. Patients with chronic kidney disease stages 4 and 5 and those receiving hemodialysis or peritoneal dialysis for renal failure were excluded from the study. Peripheral blood samples for BNP and cTnI were obtained within 24 h preoperatively. The primary endpoint was the occurrence of MACE, defined as the composite of cardiac death, nonfatal myocardial infarction, heart failure, arrhythmias, and cardiac arrest at 6 days postsurgery. Results: The mean age of patients was 69.41 ± 7.56 years. Females comprised 54.1% of the study population. During the perioperative period and follow-up of 6 days, 12 MACE were recorded. Preoperative cTnI levels alone or both cTnI and BNP together (cTnI levels >0.07 ng/mL and BNP levels >40 pg/mL) increased significantly in the patients who experienced MACE (P < 0.05). The area under receiver operating characteristics curve for cTnI and BNP for predicting perioperative cardiac events was 0.817 (95% confidence interval [CI] 0.646–0.988; P < 0.001) and 0.520 (95% CI 0.337–0.704; P = 0.817), respectively. Conclusions: In elderly patients undergoing noncardiac surgeries, a preoperative assessment of BNP and cTnI may help in the assessment of MACE.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208389","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
Effect of statin on mortality in diabetic patients with COVID-19: A systematic review and meta-analysis 他汀类药物对糖尿病合并COVID-19患者死亡率的影响:系统综述和荟萃分析
Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-01-01 DOI: 10.4103/rcm.rcm_39_22
Kamran Roudini, Azin Alizadehasl, DavoodKhoda Amorzideh, Nashmil Ghadimi, Hossein Hosseinifard, Sara Kaveh, NiloufarAkbari Parsa
Context: It seems that the threat of death increases among diabetic patients with coronavirus infection disease-2019 (COVID-19). Statins have anti-inflammatory and anti-thrombogenic properties along with lowering blood cholesterol. Therefore, statins could be considered as an important factor in reducing the mortality rates in diabetic patients with COVID-19. This systematic review and meta-analysis study was performed to investigate the effect of statin on mortality in diabetic patients with COVID-19. Evidence Acquisition: This study was done based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Electronic databases such as PubMed, Embase, Scopus, Web of Science, and Cochrane Library were searched from December 2019 until the end of September 2022. Meta-analysis was used by the comprehensive meta-analysis software to combine the results. A funnel plot and Egger’s regression test were used to investigate the publication bias. Results: Six studies were included in the meta-analysis. Nine thousand five hundred and thirty-three diabetic patients with COVID-19 were studied. The heterogeneity between studies was significant. According to the meta-analysis, using the random-effects model, we found that the rate of mortality due to COVID-19 in diabetic patients who used statins was 9% lower than other patients. Publication bias between studies included in the meta-analysis was not significant. Conclusions: In this study, there was no significant difference between the mortality rates of diabetic people with COVID-19 who used statins and individuals who did not consume statins – this difference was just 9%. Therefore, it could be said that more clinical trials are needed to ensure the clinical efficacy of statins among diabetic patients with COVID-19.
背景:患有冠状病毒感染-2019 (COVID-19)的糖尿病患者的死亡威胁似乎有所增加。他汀类药物具有抗炎和抗血栓形成的特性以及降低血液中的胆固醇。因此,他汀类药物可被认为是降低糖尿病合并COVID-19患者死亡率的重要因素。本系统综述和荟萃分析研究旨在探讨他汀类药物对糖尿病合并COVID-19患者死亡率的影响。证据获取:本研究是根据系统评价和荟萃分析指南的首选报告项目完成的。从2019年12月到2022年9月底,检索了PubMed、Embase、Scopus、Web of Science和Cochrane Library等电子数据库。采用综合meta分析软件对结果进行综合分析。采用漏斗图和Egger回归检验检验发表偏倚。结果:6项研究被纳入meta分析。对9533例糖尿病合并COVID-19患者进行了研究。研究间的异质性显著。根据meta分析,使用随机效应模型,我们发现使用他汀类药物的糖尿病患者因COVID-19的死亡率比其他患者低9%。纳入meta分析的研究之间的发表偏倚不显著。结论:在这项研究中,使用他汀类药物的COVID-19糖尿病患者和未使用他汀类药物的患者的死亡率没有显著差异,差异仅为9%。因此,需要更多的临床试验来确保他汀类药物在糖尿病合并COVID-19患者中的临床疗效。
{"title":"Effect of statin on mortality in diabetic patients with COVID-19: A systematic review and meta-analysis","authors":"Kamran Roudini, Azin Alizadehasl, DavoodKhoda Amorzideh, Nashmil Ghadimi, Hossein Hosseinifard, Sara Kaveh, NiloufarAkbari Parsa","doi":"10.4103/rcm.rcm_39_22","DOIUrl":"https://doi.org/10.4103/rcm.rcm_39_22","url":null,"abstract":"Context: It seems that the threat of death increases among diabetic patients with coronavirus infection disease-2019 (COVID-19). Statins have anti-inflammatory and anti-thrombogenic properties along with lowering blood cholesterol. Therefore, statins could be considered as an important factor in reducing the mortality rates in diabetic patients with COVID-19. This systematic review and meta-analysis study was performed to investigate the effect of statin on mortality in diabetic patients with COVID-19. Evidence Acquisition: This study was done based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Electronic databases such as PubMed, Embase, Scopus, Web of Science, and Cochrane Library were searched from December 2019 until the end of September 2022. Meta-analysis was used by the comprehensive meta-analysis software to combine the results. A funnel plot and Egger’s regression test were used to investigate the publication bias. Results: Six studies were included in the meta-analysis. Nine thousand five hundred and thirty-three diabetic patients with COVID-19 were studied. The heterogeneity between studies was significant. According to the meta-analysis, using the random-effects model, we found that the rate of mortality due to COVID-19 in diabetic patients who used statins was 9% lower than other patients. Publication bias between studies included in the meta-analysis was not significant. Conclusions: In this study, there was no significant difference between the mortality rates of diabetic people with COVID-19 who used statins and individuals who did not consume statins – this difference was just 9%. Therefore, it could be said that more clinical trials are needed to ensure the clinical efficacy of statins among diabetic patients with COVID-19.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208198","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
Subcutaneous implantable cardioverter-defibrillator lead repositioning due to device sensing impairment in a patient with scoliosis 脊柱侧凸患者皮下植入式心律转复除颤器导联重新定位
Q4 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2023-01-01 DOI: 10.4103/rcm.rcm_15_23
Farzad Kamali, Mahsa Nourani, Mahdiyeh Mahdinejadshani, Samira Shirazi, SeyedAli Pourmomeni
Despite many well-documented benefits of the transvenous implantable cardioverter-defibrillator in appropriate patients, there is a strong preference today for subcutaneous implantable cardioverter-defibrillator (S-ICD) implantation due to the significant late complications associated with intravenous leads, especially in young patients. We report on an 18-year-old woman with S-ICD due to hypertrophic cardiomyopathy who had idiopathic dextroscoliosis. In the follow-up analysis, we observed a disturbance in the normal detection of QRS complexes by the device, which significantly reduced when the patient changed the position from standing to supine and when the brace was closed. According to the absence of lead displacement in the chest radiograph, S-ICD sense impairment was suggested due to skeletal deformity. Due to not solving this problem with device reprogramming, we had to reposition of the S-ICD lead in our patient.
尽管经静脉植入式心律转复除颤器在适当的患者中有许多充分的益处,但由于静脉导联相关的明显晚期并发症,特别是在年轻患者中,目前仍强烈倾向于皮下植入式心律转复除颤器(S-ICD)植入术。我们报告了一位18岁的女性,由于肥厚性心肌病而患有特发性右旋脊柱侧凸的S-ICD。在随访分析中,我们观察到该装置对QRS复合体的正常检测存在干扰,当患者由站立变为仰卧以及关闭支架时,这种干扰明显减少。根据胸片上未见铅移位,提示S-ICD感觉障碍可能是骨骼畸形所致。由于没有通过设备重新编程解决这个问题,我们不得不重新定位患者的S-ICD导联。
{"title":"Subcutaneous implantable cardioverter-defibrillator lead repositioning due to device sensing impairment in a patient with scoliosis","authors":"Farzad Kamali, Mahsa Nourani, Mahdiyeh Mahdinejadshani, Samira Shirazi, SeyedAli Pourmomeni","doi":"10.4103/rcm.rcm_15_23","DOIUrl":"https://doi.org/10.4103/rcm.rcm_15_23","url":null,"abstract":"Despite many well-documented benefits of the transvenous implantable cardioverter-defibrillator in appropriate patients, there is a strong preference today for subcutaneous implantable cardioverter-defibrillator (S-ICD) implantation due to the significant late complications associated with intravenous leads, especially in young patients. We report on an 18-year-old woman with S-ICD due to hypertrophic cardiomyopathy who had idiopathic dextroscoliosis. In the follow-up analysis, we observed a disturbance in the normal detection of QRS complexes by the device, which significantly reduced when the patient changed the position from standing to supine and when the brace was closed. According to the absence of lead displacement in the chest radiograph, S-ICD sense impairment was suggested due to skeletal deformity. Due to not solving this problem with device reprogramming, we had to reposition of the S-ICD lead in our patient.","PeriodicalId":21031,"journal":{"name":"Research in Cardiovascular Medicine","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208197","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
Research in Cardiovascular Medicine
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