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https://www.readbyqxmd.com/read/28453794/blood-flow-competition-after-aortic-valve-bypass-an-evaluation-using-computational-fluid-dynamics
#1
Koji Kawahito, Naoyuki Kimura, Kenji Komiya, Masanori Nakamura, Yoshio Misawa
OBJECTIVES: Aortic valve bypass (AVB) (apico-aortic conduit) remains an effective surgical alternative for patients in whom surgical aortic valve replacement or transcatheter aortic valve implantation is not feasible. However, specific complications include thrombus formation, possibly caused by stagnation arising from flow competition between the antegrade and retrograde flow, but this has not been fully investigated. The aim of this study was to analyse flow characteristics after AVB and to elucidate mechanisms of intra-aortic thrombus using computational fluid dynamics (CFD)...
May 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28449506/surgical-resection-of-right-ventricular-rhabdomyoma-under-the-guidance-of-transesophageal-echocardiography-on-a-beating-heart
#2
Xueguang Han, Haibo Song, Li Zhou, Chunling Jiang
Cardiac rhabdomyoma, a type of benign myocardial tumor, is regarded as the most common fetal cardiac tumor. Rhabdomyomas are usually found before birth or during the first year of life. It is widely accepted that rhabdomyomas are strongly associated with tuberous sclerosis, and tend to regress spontaneously without surgical excision. However, if the tumor has caused significant obstruction or refractory arrhythmias, the surgery should be advocated. Most of the surgeries for pediatric cardiac tumors are performed under cardiopulmonary bypass (CPB) with cardioplegia...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28448974/the-feasibility-and-safety-of-interventional-occlusion-treatment-of-intracristal-ventricular-septal-defects-clinical-report-of-56-cases
#3
Ting Cui, Wanfeng Sun, Yanhong He, Guopei Zhang, Dajie Wang, Yudong Xia, Feng Wang, Mingxing Zhu
BACKGROUND: To investigate the feasibility and safety of the O eccentric shape occluder in the interventional occlusion treatment of intracristal ventricular septal defect (IVSD). METHODS: A retrospective analysis of the clinical data of 56 IVSD patients treated by interventional occlusion at our center, as well as recording of their intraoperative and postoperative status, was performed. RESULTS: Of the 56 patients, a total of 48 patients underwent successful occlusion during the first surgical attempt...
April 28, 2017: Cardiology
https://www.readbyqxmd.com/read/28447012/erratum-to-degenerative-mitral-valve-disease-contemporary-surgical-approaches-and-repair-techniques
#4
(no author information available yet)
[This corrects the article DOI: 10.21037/acs.2016.11.03.].
March 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28446973/bronchoscopic-valves-for-prolonged-air-leak-current-status-and-technique
#5
REVIEW
Amit K Mahajan, Sandeep J Khandhar
Unidirectional airway valves are devices used for the treatment of persistent air leaks (PALs) secondary to alveolar-pleural fistulas (APF) or bronchopleural fistulas (BPFs). These valves were originally developed as a non-surgical alternative to lung volume reduction surgery (LVRS) for patients with chronic obstructive pulmonary disease (COPD). Randomized trials investigating the use of valves for bronchoscopic LVRS did not lead to the Federal Drug Administration (FDA) approval, but stemming from these studies a Humanitarian Device Exemption (HDE) was granted to Spiration intrabronchial valves (IBVs) for the treatment of PALs...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28444201/mitral-periprosthetic-leakage-contemporary-results-of-surgical-correction-at-a-single-centre%C3%A2
#6
Luca Botta, Benedetta De Chiara, Salvina Quattrocchi, Francesca Casadei, Francesco Borgia, Cristina Giannattasio, Antonella Moreo, Claudio Francesco Russo
OBJECTIVES: Mitral periprosthetic leakage (PPL) is a serious complication following valve replacement. Conflicting outcomes of surgical treatment have been reported in the presence of multiple previous cardiac operations and associated co-pathological conditions. METHODS: Sixty-five symptomatic patients (37 women, mean age 64.8 years) underwent conventional operations at our hospital from 2006 to 2015. Mitral PPL was the leading surgical indication, although associated procedures were included...
April 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28443984/antifungal-activity-of-caspofungin-in-experimental-infective-endocarditis-caused-by-candida-albicans
#7
Gerardo Becerra Victorio, Lorena Michele Brennan Bourdon, Leonel García Benavides, Selene G Huerta-Olvera, Arturo Plascencia, José Villanueva, Erika Martinez-Lopez, Iván Isidro Hernández-Cañaveral
BACKGROUND: Infective endocarditis is a disease characterised by heart valve lesions, which exhibit extracellular matrix proteins that act as a physical barrier to prevent the passage of antimicrobial agents. The genus Candida has acquired clinical importance given that it is increasingly being isolated from cases of nosocomial infections. OBJECTIVE: To evaluate the activity of caspofungin compared to that of liposomal amphotericin B against Candida albicans in experimental infective endocarditis...
May 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28441850/-clinical-application-of-one-stage-operation-of-epicardial-permanent-pacemaker-implantation-and-cardiac-surgery
#8
C L Ren, S L Jiang, C S Xiao, R Wang, C Q Gao
Objective: To summarize the results and clinical application experience of one-stage operation of epicardial permanent pacemaker implantation and cardiac surgery. Methods: From November 2014 to July 2016, 15 patients (9 males and 6 females) with ages ranging from 50 to 73 (63.5±6.2) years requiring cardiac surgery with bradycardia underwent one-stage operation of epicardial permanent pacemaker implantation and cardiac surgery. All operations were performed under general anesthesia with chest median incision approach...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28441849/-feasibility-and-effectiveness-of-percutaneous-ventricular-septal-defect-closure-under-solely-guidance-of-echocardiography
#9
Y Liu, G L Guo, W B Ouyang, M Z Li, X B Pan
Objective: To compare the efficacy and safety of percutaneous ventricular septal defect (VSD) closure under solely guidance of echocardiography and fluoroscopy. Methods: The retrospective study was conducted at Fuwai Hospital, between February 2014 and February 2015. The patients were divided into two groups. VSD closure was conducted in 42 patients under solely guidance of echocardiography, and 100 patients who were treated with percutaneous catheter closure under fluoroscopy guidance were selected as a control group...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28441641/low-volume-contrast-ct-angiography-via-pulmonary-artery-injection-for-measurement-of-aortic-annulus-in-patients-undergoing-transcatheter-aortic-valve-replacement
#10
Vien T Truong, Joseph Choo, Luke McCoy, Adam Mussman, Stephanie Ambach, Dean Kereiakes, Ian Sarembock, Wojciech Mazur
OBJECTIVES: To investigate the feasibility and image quality of low-dose contrast computed tomography (CT) angiography with pulmonary artery (PA) protocol. BACKGROUND: Aortic stenosis is the most common valvular heart disease and transcatheter aortic valve replacement (TAVR) has evolved as an alternative method for surgical valve replacement in intermediate-risk and high-risk surgical patients. CT is essential for measurement of aortic annulus prior to TAVR. METHODS: Twenty patients underwent a low-dose contrast study with PA protocol and 20 patients underwent a traditional-dose study (traditional protocol)...
May 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28441151/recent-clinical-trials-in-valvular-heart-disease
#11
Daniel Kiss, Saif Anwaruddin
PURPOSE OF REVIEW: With widespread adoption of transcatheter aortic valve replacement, there has been a change in the approach to management of valvular heart disease. New interest has taken hold in transcatheter therapies for valvular heart disease, as well as research into pathophysiology and progression of disease. Additionally, several key trials have further refined our understanding of surgical management of valvular heart disease. This review will elucidate recent clinical trial data leading to changes in practice...
April 24, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28438400/arteriotomy-closure-devices-in-evar-tevar-and-tavr-a-systematic-review-and-meta-analysis-of-randomised-clinical-trials-and-cohort-studies
#12
REVIEW
B P Vierhout, R A Pol, M El Moumni, C J Zeebregts
OBJECTIVES: Cardiac and vascular surgery benefit from percutaneous interventions. Arteriotomy closure devices (ACDs) enable minimally invasive access to the common femoral artery (CFA). The objective of this review was to assess the differences between ACDs and surgical cut down (SCD) of the CFA regarding the number of complications, duration of surgery (DOS), and hospital length of stay (HLOS). DESIGN: A systematic literature search with predefined search terms was performed using MEDLINE, Embase, and the Cochrane Library (2000-2016)...
April 21, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28437243/impact-of-pulmonary-hypertension-on-in-hospital-outcome-after-surgical-or-transcatheter-aortic-valve-replacement
#13
Anja Gutmann, Klaus Kaier, Holger Reinecke, Lutz Frankenstein, Andreas Zirlik, Wolfgang Bothe, Constantin von Zur Mühlen, Manfred Zehender, Jochen Reinöhl, Christoph Bode, Peter Stachon
AIMS: The impact of pulmonary hypertension (PH) on in-hospital outcome of either surgical (SAVR) or transcatheter aortic valve replacement (TAVR) was analyzed. METHODS AND RESULTS: Data from all 107,057 patients undergoing isolated SAVR or TAVR in Germany between 2007 and 2014 was provided by the German Federal Bureau of Statistics. About 18% of patients with aortic valve stenosis suffered from PH. Patients with PH had more co- morbidities with consequently increased EuroSCORE (TAVR without PH: 12...
April 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28435328/aortic-valve-papillary-fibroelastoma-causing-embolic-strokes-a-case-report-and-review
#14
Avraham Miller, Audrik Perez, Swathi Pabba, Vijay Shetty
Papillary fibroelastomas (PFEs) are the second most common benign neoplasms of the cardiac valves and are being recognized more frequently because of higher resolution imaging technology. PFEs are associated with substantial complications that are secondary to systemic embolism. Surgical resection should be offered to all patients who have symptoms and to asymptomatic patients who have pedunculated lesions or tumors larger than 1 cm in diameter. Herein, we present a patient who presented for a second time in 2 months with stroke symptoms...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28434839/the-evolution-in-the-management-of-aortic-valve-disease-from-surgical-techniques-to-transcatheter-interventions
#15
EDITORIAL
Dimitris Tousoulis
No abstract text is available yet for this article.
April 18, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28434546/surgical-strategy-toward-biventricular-repair-for-severe-ebstein-anomaly-in-neonates-and-infancy
#16
Shu-Chien Huang, En-Ting Wu, Shyh-Jye Chen, Chi-Hsiang Huang, Jin-Chung Shih, Hen-Wen Chou, Chung-I Chang, Ing-Sh Chiu, Yih-Sharng Chen
BACKGROUND: Neonates with severe forms of Ebstein anomaly present a surgical challenge, and the Starnes operation as single ventricle palliation is highly advocated. Cone reconstruction for tricuspid valvuloplasty (TVP) has become a widely accepted technique, although very few cases of TVP have been reported in neonates. This report describes a surgical strategy for neonatal Ebstein anomaly, with an aim toward biventricular repair. METHODS: Since 2007, 7 neonates or young infants with severe Ebstein anomalies have received TVP at the National Taiwan University Hospital, Taipei, Taiwan...
April 20, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28433509/transcutaneous-aortic-valve-implantation-using-the-carotid-artery-access-feasibility-and-clinical-outcomes
#17
Zacharenia Kallinikou, Alexandre Berger, Patrick Ruchat, Gregory Khatchatourov, Isabelle Fleisch, Branislav Korkodelovic, Emmanuel Henchoz, René-Andréas Marti, Stéphane Cook, Mario Togni, Jean-Jacques Goy
BACKGROUND: Transcarotid access is an alternative route for transcutaneous aortic valve implantation (TAVI) in patients with impossible transfemoral access. AIMS: We evaluated the safety, effectiveness and early and late clinical outcomes of CoreValve(®) implantation via the common carotid artery. METHODS: Eighteen patients (10 men, 8 women; mean age 84±5 years) at high surgical risk (mean EuroSCORE II 16±13%) with significant peripheral artery disease underwent TAVI via common carotid artery access under general anaesthesia...
April 19, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28433492/is-tavr-ready-for-the-global-aging-population
#18
REVIEW
Travis Bergmann, Partho P Sengupta, Jagat Narula
The emergence of the global pandemic of chronic diseases necessitates critical assessment of interventions that can be targeted at both the individual and population levels. Among cardiovascular diseases, the increasing prevalence of valvular heart diseases such as aortic stenosis parallels the rising burden of atherosclerotic cardiovascular diseases. As an alternative to surgical aortic valve replacement, technological innovation has allowed development of minimally invasive transcatheter aortic valve replacement (TAVR)...
April 19, 2017: Global Heart
https://www.readbyqxmd.com/read/28433356/aortic-sinus-flow-stasis-likely-in-valve-in-valve-transcatheter-aortic-valve-implantation
#19
Hoda Hatoum, Brandon L Moore, Pablo Maureira, Jennifer Dollery, Juan A Crestanello, Lakshmi Prasad Dasi
OBJECTIVE: Valve-in-valve procedures using transcatheter aortic valves are increasingly performed to treat degenerated bioprosthetic surgical aortic valves because they are less invasive than redo aortic valve replacement. The objective of this study is to quantify the changes in aortic sinus blood flow dynamics before and after a valve-in-valve procedure to gain insight into mechanisms for clinical and subclinical thrombosis of leaflets. METHODS: A detailed description of the sinus hemodynamics for valve-in-valve implantation was performed in vitro...
March 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28433222/long-term-mortality-effect-of-early-pacemaker-implantation-after-surgical-aortic-valve-replacement
#20
Kevin L Greason, Brian D Lahr, John M Stulak, Yong-Mei Cha, Robert F Rea, Hartzell V Schaff, Joseph A Dearani
BACKGROUND: The need for pacemaker implantation is a well-described complication of aortic valve replacement. Not so well described is the effect such an event has on long-term outcome. This study reviewed a 21-year experience at the Mayo Clinic (Rochester, Minnesota) with aortic valve replacement to understand the influence of early postoperative pacemaker implantation on long-term mortality rates more clearly. METHODS: This study retrospectively reviewed the records of 5,842 patients without previous pacemaker implantation who underwent surgical aortic valve replacement from January 1993 through June 2014...
April 19, 2017: Annals of Thoracic Surgery
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