ISSN 1671-5411 CN 11-5329/R

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2018 Vol. 15, No. 1

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2016 Chinese guidelines for the management of dyslipidemia in adults
Jun-Ren ZHU, Run-Lin GAO, Shui-Ping ZHAO, Guo-Ping LU, Dong ZHAO, Jian-Jun LI
2018, 15(1): 1-29. doi: 10.11909/j.issn.1671-5411.2018.01.011
Chinese expert consensus on the non-invasive imaging examination pathways of stable coronary artery disease
Yun-Dai CHEN, Wei-Yi FANG, Ji-Yan CHEN, Zhan-Ming FAN, Chuan-Yu GAO, Jun-Bo GE, Zuo-Xiang HE, Yong HUO, Lang LI, Si-Jin LI, Xi-Lie LU, Bin LV, Ju-Ying QIAN, Ya-Jun SHI, Zhu-Jun SHEN, Jing WANG, Yi-Ning WANG, Lei XU, Li YANG, Bo YU, Mei ZHANG, Jun-Jie YANG, Shu-Yang ZHANG, Xiao-Li ZHANG, Shi-Hua ZHAO, Yang ZHENG, Yu-Chi Han, Guang ZHI
2018, 15(1): 30-40. doi: 10.11909/j.issn.1671-5411.2018.01.012
Improvement of increased cQTd is associated with heart function in patients with ischemic heart failure
Hui GUO, Miao WANG, Juan ZHAO, Jing LIU, Jie-Mei YANG
2018, 15(1): 41-49. doi: 10.11909/j.issn.1671-5411.2018.01.010
Background Chronic heart failure (CHF) is life-threatening without timely or effective intervention. In this study, we investigated the association between QT dispersion corrected for heart rate (cQTd) and heart function in patients with CHF. Methods From January 2013 to December 2015, we continuously enrolled 240 patients categorized as New York Heart Association functional class (NYHA) III?IV with a left ventricular ejection fraction (LVEF) n = 120) and an ischemic cardiomyopathy (ICM) group (n = 120). Then, based on the cQTd width, the ICM group was divided into two subgroups: a QS group (cQTd ≤ 60 ms, n = 70) and a QL group (cQTd > 60 ms, n = 50). All patients were examined by echocardiography and 12-lead electrocardiography (ECG) at 1, 3, 6, and 12 months after enrollment. Results After one year of optimized medical treatment, patients in both groups showed significant improvement in LVEF and NYHA classification from baseline. However, the cQTd in the ICM group, especially the QL, was significantly shorter than that in the DCM group at each time point. In addition, the cQTd was negatively correlated with LVEF and 6-min walking test and positively correlated with NYHA class in the ICM group. Conclusions The present findings clearly demonstrate that cQTd is a meaningful parameter for assessing heart function in the follow-up of ICM patients.
Incidence, pathophysiology, predictive factors and prognostic implications of new onset atrial fibrillation following transcatheter aortic valve implantation
Ioanna Koniari, Grigorios Tsigkas, Nikolaos Kounis, Dimitrios Velissaris, Emmanouil Chourdakis, Periklis Davlouros, George Hahalis
2018, 15(1): 50-54. doi: 10.11909/j.issn.1671-5411.2018.01.007
TAVR in 2017―What we know? What to expect?
Panagiota Kourkoveli, Konstantinos Spargias, George Hahalis
2018, 15(1): 55-60. doi: 10.11909/j.issn.1671-5411.2018.01.005
Endocarditis after transcatheter aortic valve implantation: a current assessment
Emmanouil Chourdakis, Ioanna Koniari, George Hahalis, Nicholas G Kounis, Karl Eugen Hauptmann
2018, 15(1): 61-65. doi: 10.11909/j.issn.1671-5411.2018.01.003
Antithrombotic therapy in TAVI
Manolis Vavuranakis, Konstantinos Kalogeras, Angelos Michail Kolokathis, Dimitrios Vrachatis, Nikolaos Magkoutis, Gerasimos Siasos, Euaggelos Oikonomou, Maria Kariori, Theodoros Papaioannou, Maria Lavda, Carmen Moldovan, Ourania Katsarou, Dimitrios Tousoulis
2018, 15(1): 66-75. doi: 10.11909/j.issn.1671-5411.2018.01.001
Transcatheter aortic valve implantation (TAVI) carries a significant thromboembolic and concomitant bleeding risk, not only during the procedure but also during the periprocedural period. Many issues concerning optimal antithrombotic therapy after TAVI are still under debate. In the present review, we aimed to identify all relevant studies evaluating antithrombotic therapeutic strategies in relation to clinical outcomes after the procedure. Four randomized control trials (RCT) were identified analyzing the post-TAVI antithrombotic strategy with all of them utilizing aspirin lifelong plus clopidogrel for 3?6 months. Seventeen registries have been identified, with a wide variance among them regarding baseline characteristics, while concerning antiplatelet therapy, clopidogrel duration was ranging from 3?12 months. Four non-randomized trials were identified, comparing single vs. dual antiplatelet therapy after TAVI, in respect of investigating thromboembolic outcome events over bleeding complications. Finally, limited data from a single RCT and a retrospective study exist with regards to anticoagulant treatment during the procedure and the optimal antithrombotic therapy when concomitant atrial fibrillation. In conclusion, due to the high risk and frailty of the treated population, antithrombotic therapy after TAVI should be carefully evaluated. Diminishing ischaemic and bleeding complications remains the main challenge in these patients with further studies to be needed in this field.
Transcatheter versus surgical aortic valve replacement in severe, symptomatic aortic stenosis
Grigorios Tsigkas, Stefanos Despotopoulos, Athanasios Makris, Ioanna Koniari, Stylianos Armylagos, Periklis Davlouros, George Hahalis
2018, 15(1): 76-85. doi: 10.11909/j.issn.1671-5411.2018.01.002
Aortic stenosis (AS) is the most common type of valvular heart disease in the elderly. Surgical aortic valve replacement (SAVR) has been the standard practice for treating severe, symptomatic AS, but recently new treatment options have emerged. Transcatheter aortic valve replacement (TAVR) is now an established treatment option in patients at high surgical risk. In this review, we focus on recent developments and compare the two treatment methods in specific populations in terms of efficacy and safety (e.g., in patients with history of prior thoracic surgery, type of anesthesia employed, access site used or need for permanent pacing). The impact of comorbidities (pulmonary hypertension, arterial hypertension and obesity paradox), the cost-effectiveness of TAVR vs. SAVR and advances in transcatheter valve technology as well as issues that merit further investigation are further discussed. Moreover, outcomes and complications of TAVR in patients of different risk category (extremely high, high, intermediate and low risk) are analyzed. We strongly believe that during the following years, TAVR may evolve as the treatment of choice in a broader group of patients with symptomatic AS and beyond those with intermediate and high-risk features.
The role of echocardiography and CT angiography in transcatheter aortic valve implantation patients
Emmanouil Chourdakis, Ioanna Koniari, Nicholas G Kounis, Dimitrios Velissaris, Nikolaos Koutsogiannis, Grigorios Tsigkas, Karl Eugen Hauptmann, Bruno Sontag, George Hahalis
2018, 15(1): 86-94. doi: 10.11909/j.issn.1671-5411.2018.01.006
The transcatheter aortic valve implantation (TAVI) consist an alternative treatment in patients with severe aortic stenosis. Multimodality imaging using transthoracic echocardiography (TTE) or transesophageal echocardiography (TOE) and multislice CT (MSCT) constitute cornerstone techniques for the pre-operative management, peri-procedural guidance, follow up and recognition of possible transcatheter valve related complications. CT angiography is much more accurate regarding the total definition of aortic annulus diameter and circumferential area. Two-dimensional (2D) echocardiography, underestimates the aortic valve annulus diameter compared to 3D imaging techniques (MSCT, MRI and 3D TOE). Three-dimensional TOE imaging provides measurements of the aortic valve annulus similar to those delivered by MSCT. The pre-procedural MSCT constitutes the gold standard modality minimizing the presence of paravalvular aortic regurgitation, one of the most frequent complications. TOE/TTE and MSCT performance could predict the possibility of pacemaker implantation post-procedural. The presence of a new transient or persisting MR can be assessed well by TOE. Both TTE and TOE, consist initially the basic examination for post TAVI evaluation. In case of transcatheter heart valve failure, the MSCT could be used as additional imaging technique.
Transcatheter aortic valve replacement and stroke: a comprehensive review
Periklis A Davlouros, Virginia C Mplani, Ioanna Koniari, Grigorios Tsigkas, George Hahalis
2018, 15(1): 95-104. doi: 10.11909/j.issn.1671-5411.2018.01.008
Transcatheter aortic valve implantation (TAVR) has emerged as an alternative, rapidly evolving treatment option for patients with severe aortic stenosis and high surgical risk. Stroke is a devastating complication being confined mainly in the periprocedural and 30-day period following TAVR, with a lower and relatively constant frequency thereafter. Early stroke is mainly due to debris embolization during the procedure, whereas later events are associated with patient specific factors. Despite the fact that the rate of clinical stroke has been constantly decreasing compared to initial TAVR experience, modern neuro-imaging with MRI suggests that new ischemic lesions post-TAVR are almost universal. The impact of the latter is largely unknown. However, they seem to correlate with a reduction in neurocognitive function. Because TAVR is set to expand its indication to lower surgical-risk patients, stroke prophylaxis during and after TAVR becomes of paramount importance. Based on clinical and pathophysiological evidence, three lines of research are actively employed towards this direction: improvement in valve and delivery system technology with an aim to reduce manipulations and contact with the calcified aortic arch and native valve, antithrombotic therapy, and embolic protection devices. Careful patient selection, design of the procedure, and tailored antithrombotic strategies respecting the bleeding risks of this fragile population constitute the main defense against stroke following TAVR.
Conduction abnormalities after transcatheter aortic valve implantation
Panagiotis Karyofillis, Anna Kostopoulou, Sofia Thomopoulou, , Martha Habibi, Efthimios Livanis, George Karavolias, Vassilis Voudris
2018, 15(1): 105-112. doi: 10.11909/j.issn.1671-5411.2018.01.004
In the last few years, transcatheter aortic valve implantation (TAVI) has become an alternative procedure in patients with severe aortic stenosis and high risk for surgical aortic replacement. Due to the anatomic correlation between aortic valve structure and conduction system of the heart, one of the most common complications after TAVI is conduction system disturbances which including bundle branch block, complete heart block and need for permanent pacemaker implantation. Although these disturbances are usually not lethal, they may have a great influence on patients’ state and long term-survival. Several risk factors for conduction disturbances have been identified which including age, anatomy of the heart, periprocedural factors, type of implanted valve, preexisting abnormalities and comorbidities. As this technique becomes more familiar to physicians, patients should be carefully screened for risk factors for the development of conduction abnormalities after TAVI in order to provide effective prevention and proper treatment.
Restrictive perimembranous ventricular septal defect with left to right Shunt post urgent aortic balloon valvuloplasty and transcatheter aortic valve replacement
Emmanouil Chourdakis, Ioanna Koniari, Nicholas G Kounis, Dimitrios Velissaris, George Hahalis, Karl Eugen Hauptmann
2018, 15(1): 113-116. doi: 10.11909/j.issn.1671-5411.2018.01.009