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tricuspid annulus

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https://www.readbyqxmd.com/read/29782689/common-and-distinctive-electrocardiographic-characteristics-and-effective-catheter-ablation-of-idiopathic-ventricular-arrhythmias-originating-from-different-areas-of-ventricular-septum-adjacent-to-atrioventricular-annulus
#1
Su-Qin Zhang, Cheng Zheng, Yue-Chun Li, Kang-Ting Ji, Ri-Peng Yin, Jia-Feng Lin, Jia Li
OBJECTIVE: To investigate electrocardiographic (ECG) characteristics and radiofrequency catheter ablation (RFCA) efficacy for premature ventricular complexes (PVCs) and idiopathic ventricular tachycardias (IVTs) originating from ventricular septum areas adjacent to atrioventricular annulus (VS-AVA). METHODS: Among 1505 consecutive PVCs/IVTs cases, 106 (7.04%) were confirmed as origin of VS-AVA guided by both fluoroscopy and three-dimensional mapping system during RFCA...
May 21, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29776560/large-animal-model-of-acute-right-ventricular-failure-with-functional-tricuspid-regurgitation
#2
Marcin Malinowski, Alistair G Proudfoot, Lenora Eberhart, Hans Schubert, Jeremy Wodarek, David Langholz, Manuel K Rausch, Tomasz A Timek
BACKGROUND: Functional tricuspid regurgitation (FTR) commonly arises secondary to conditions affecting the left heart and is associated with right ventricular dysfunction and tricuspid annular dilatation. We set out to establish an animal model of acute RV failure (RVF) with FTR resembling the clinical features. METHODS: Ten adult sheep had pressure sensors placed in the LV, RV, and right atrium while sonomicrometry crystals were implanted around tricuspid annulus and on the RV...
August 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29730694/intracardiac-echocardiography-to-guide-catheter-ablation-of-an-accessory-pathway-in-ebstein-s-anomaly-a-case-report
#3
Gabriel Cismaru, Lucian Muresan, Radu Rosu, Mihai Puiu, Gabriel Gusetu, Rodica Toganel, Dana Pop, Dumitru Zdrenghea
We present the case of a 17-year-old girl with Ebstein anomaly and repeated episodes of reentrant tachycardia due to a right posterior accessory pathway. Catheter ablation was performed using intracardiac echocardiography. A ViewFlex Xtra probe was inserted and showed an anormal tricuspid valve with elongated anterior leaflet and low insertion of the septal leaflet towards the apex. The anatomical annulus was identified by the course of the right coronary artery. RF application on the posterior annulus stopped the reentrant arrhythmia...
May 2, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29681368/outcomes-after-balloon-pulmonary-valvuloplasty-for-critical-pulmonary-stenosis-and-incidence-of-coronary-artery-fistulas
#4
Varun Aggarwal, Venkatachalam Mulukutla, Shiraz Maskatia, Henri Justino, Charles E Mullins, Athar M Qureshi
Outcome data for neonates with critical pulmonary stenosis (PS) is limited. We aimed to review the outcomes after balloon pulmonary valvuloplasty (BPV) for neonates with critical PS at our institution. All neonates with critical PS who underwent BPV from 1990 to 2017 were included. A total of 44 neonates underwent BPV for critical PS. Nonright ventricular dependent coronary artery fistulas was seen in 6/44 (13.6%) patients. Tricuspid valve z-scores were -1.9 (interquartile range [IQR] -3.04, -0.48) in those with coronary artery fistulas as compared with -0...
March 13, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29673504/usefulness-of-tricuspid-annular-diameter-to-predict-late-right-sided-heart-failure-in-patients-with-left-ventricular-assist-device
#5
Koki Nakanishi, Shunichi Homma, Jiho Han, Hiroo Takayama, Paolo C Colombo, Melana Yuzefpolskaya, Arthur R Garan, Maryjane A Farr, Paul Kurlansky, Marco R Di Tullio, Yoshifumi Naka, Koji Takeda
Although late-onset right-sided heart failure is recognized as a clinical problem in the treatment of patients with left ventricular assist devices (LVADs), the mechanism and predictors are unknown. Tricuspid valve (TV) deformation leads to the restriction of the leaflet motion and decreased coaptation, resulting in a functional tricuspid regurgitation that may act as a surrogate marker of late right-sided heart failure. This study aimed to investigate the association of preoperative TV deformation (annulus dilatation and leaflet tethering) with late right-sided heart failure development after continuous-flow LVAD implantation...
March 28, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29659078/mechanistic-subtypes-of-focal-right-ventricular-tachycardia
#6
REVIEW
Bruce B Lerman, Jim W Cheung, James E Ip, Christopher F Liu, George Thomas, Steven M Markowitz
Idiopathic sustained focal right ventricular tachycardia (VT) is most frequently due to outflow tract (OT) tachycardia. This arrhythmia is recognized by its characteristic ECG pattern and sensitivity to adenosine. However, there are other forms of idiopathic, focal sustained VT that originate in the right ventricle (RV), which are less well appreciated and easily misdiagnosed. This review will identify the characteristic features and electrophysiologic properties of these forms of RV VT, including those originating from the tricuspid annulus, right ventricular papillary muscles and moderator band as well as variants of classic RVOT tachycardia and those due to microreentry in the presence of preclinical disease...
April 16, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29642695/tricuspid-valve-imaging
#7
Francesco Ancona, Stefano Stella, Cristina Capogrosso, Claudia Marini, Andrea Fisicaro, Alberto Margonato, Paolo Denti, Eustachio Agricola
The right ventricle and tricuspid valve (TV) have long been neglected by cardiologists. Functional tricuspid regurgitation (TR) is nowadays the most common cause of severe TR and is emerging as a prognostic factor in many heart diseases. A multimodality imaging approach is fundamental for defining the pathophysiology of TR, using both 2-dimensional and 3-dimensional (3D) echocardiography, as well as CT scan. In particular, 3D echocardiography can characterize TV apparatus and tricuspid annulus; CT offers complementary information about annular structure, and its relationship with the right coronary artery...
April 11, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29642693/tricuspid-valve-surgery-repair-and-replacement
#8
Ahmed El-Eshmawi, Pandis Dimosthenis, Gilbert H Tang
The tricuspid valve has historically received less attention than any other cardiac valve with regard to pathophysiology and surgical management. The tricuspid valve is part of a complex functional apparatus that includes the right atrium, right ventricle, and pulmonary circulation. Functional tricuspid regurgitation is the most common tricuspid valve disease and it occurs secondary to dilatation of tricuspid annulus and/or tethering of valve leaflets from right ventricular dilatation and dysfunction. However, recent expansion in the use of right-sided transvenous devices such as pacemakers and implantable defibrillators has been met with a parallel increase in the risk of organic tricuspid disease...
April 11, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29606322/valve-performance-classification-in-630-subcoronary-ross-patients-over-22-years
#9
Hans-Hinrich Sievers, Ulrich Stierle, Michael Petersen, Stefan Klotz, Doreen Richardt, Michael Diwoky, Efstratios I Charitos
OBJECTIVE: To define the function of the "Ross valves" and its clinical meaning in a practical valve performance classification as part of the outcome analysis. METHODS: From 1994 to 2017, 630 consecutive patients underwent the subcoronary Ross procedure at our institution. The valve performance classification combines hemodynamics, symptoms, and management criteria. Median follow-up was 12.5 years (maximum 22.3 years, 7404 patient-years, 99.4% completeness)...
March 12, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29593830/transcatheter-treatment-of-functional-tricuspid-regurgitation-using-the-trialign-device
#10
Christian Besler, Christopher U Meduri, Philipp Lurz
Functional tricuspid regurgitation (TR) represents an important unmet need in clinical cardiology given its prevalence, adverse prognostic impact and symptom burden associated with progressive right heart failure. Several transcatheter techniques are currently in early clinical testing to provide alternative treatment options for patients deemed unsuitable for tricuspid valve surgery. Amongst them, the TrialignTM device (Mitralign, Inc.) represents a novel percutaneous tricuspid valve annuloplasty technique, which aims to reduce tricuspid annular dilatation in functional TR by delivering and cinching two pledgeted sutures to the posterior portion of the tricuspid annulus via transjugular access...
January 2018: Interventional Cardiology
https://www.readbyqxmd.com/read/29588110/serial-changes-of-transmitral-and-transtricuspid-pressure-gradients-after-simultaneous-mitral-and-tricuspid-ring-annuloplasty
#11
Hunbo Shim, Ji-Won Hwang, Dong Seop Jeong, Kiick Sung, Wook Sung Kim, Pyo Won Park
BACKGROUND: Although flexible-ring annuloplasty is more inclined to increase the transmitral gradient over time, its effect on the tricuspid annulus is unknown. This study was conducted to evaluate serial changes in mean pressure gradient (mPG) across tricuspid and mitral valves after simultaneous dual implantation of flexible bands. METHODS: Seventy-one patients (median age, 61.6 years; IQR: 50.8-69.0 years) underwent simultaneous mitral/tricuspid annuloplasties using St...
March 17, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29582363/electrophysiological-characteristics-and-radiofrequency-ablation-of-sustained-monomorphic-ventricular-tachycardia-in-adult-patients-with-isolated-ventricular-noncompaction
#12
Yanhui Li, Yumei Xue, Jianhua Yu, Chenyang Jiang, Zulu Wang, Mackenzi Mbai, Venkatakrishna Tholakanahalli, David G Benditt, Jian-Ming Li
PURPOSE: This study examined electrophysiological characteristics and outcomes of patients with sustained ventricular tachycardia (VT) in the setting of isolated ventricular noncompaction (IVNC). BACKGROUND: In patients with IVNC, VT has been associated with sudden cardiac death. However, the electrophysiological characteristics and optimal management of these VTs are only incompletely understood. METHODS: This retrospective cohort study assessed arrhythmia characteristics and outcomes in IVNC patients with sustained monomorphic VTs...
March 26, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29580628/prognostic-usefulness-of-tricuspid-annular-diameter-for-cardiovascular-events-in-patients-with-tricuspid-regurgitation-of-moderate-to-severe-degree
#13
Hyungseop Kim, In-Cheol Kim, Hyuck-Jun Yoon, Hyoung-Seob Park, Yun-Kyeong Cho, Chang-Wook Nam, Seongwook Han, Seung-Ho Hur, Yoon-Nyun Kim
Functional tricuspid regurgitation (TR) is frequently encountered. Current guidelines recommend the surgical correction of severe TR only at the time of left valve surgery despite emphasizing the enlarged tricuspid annulus (TA) dimension. We attempted to evaluate the relation between TA dimension and clinical outcomes of moderate or severe TR. A total of 213 patients (mean age 68 years, women 68%) with moderate or severe TR secondary to left-sided valve surgery, nonvalvular disease, or isolated primary TR were retrospectively identified and classified into tertiles of TA dimension...
March 2, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29572873/characterizing-cardiac-dysfunction-in-fetuses-with-left-congenital-diaphragmatic-hernia
#14
Mónica Cruz-Lemini, Brenda Valenzuela-Alcaraz, Julio Granados-Montiel, Josep M Martínez, Fátima Crispi, Eduard Gratacós, Rogelio Cruz-Martínez
OBJECTIVE: To evaluate cardiac function by conventional echocardiography and tissue Doppler imaging in fetuses with left congenital diaphragmatic hernia (CDH). METHODS: Conventional echocardiography (myocardial performance index, ventricular filling velocities, and E/A ratios) and tissue Doppler imaging (annular myocardial peak velocities, E/E' and E'/A' ratios) in mitral, septal, and tricuspid annulus were evaluated in a cohort of 31 left-sided CDH fetuses and compared with 75 controls matched for gestational age 2:1...
March 23, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29569094/focal-intra-cavotricuspid-isthmus-atrial-tachycardias-occurring-after-typical-atrial-flutter-ablation-incidence-and-electrocardiographic-and-electrophysiological-characteristics
#15
Taihei Itoh, Yukihiko Yoshida, Itsuro Morishima, Takumi Yamada
PURPOSE: Focal atrial tachycardias (ATs) from the septal cavotricuspid isthmus (CTI) occurring after successful CTI ablation can mimic typical atrial flutter (tAFL). This study investigated the incidence, and electrocardiographic and electrophysiological characteristics of these ATs. METHODS: Among 1082 consecutive patients undergoing successful CTI ablation without any congenital heart diseases, 7 were diagnosed with focal ATs originating from the septal CTI that occurred a median of 74 days after the CTI ablation...
March 22, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29567131/midterm-outcomes-after-aortic-valve-neocuspidization-with-glutaraldehyde-treated-autologous-pericardium
#16
Shigeyuki Ozaki, Isamu Kawase, Hiromasa Yamashita, Shin Uchida, Mikio Takatoh, Nagaki Kiyohara
OBJECTIVE: We had previously reported the short-term results of the aortic valve neocuspidization (AVNeo) procedure. We have now evaluated the midterm results with the longest follow-up of 118 months. METHODS: From April 2007 through December 2015, 850 patients were treated with AVNeo using autologous pericardium. Medical records of these patients were retrospectively reviewed. The procedure was on the basis of independent tricuspid replacement using autologous pericardium...
February 15, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29555088/too-big-will-fail-the-enlarged-tricuspid-annulus
#17
EDITORIAL
Patrick M McCarthy
No abstract text is available yet for this article.
February 17, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29544412/tissue-motion-annular-displacement-predicts-mortality-transplant-after-the-bidirectional-glenn
#18
Jamie S Penk, S Javed H Zaidi, Cheryl A Lefaiver, Supitcha Muangmingsuk, Vivian W Cui, David A Roberson
BACKGROUND: Quantifying right ventricular function in patients with a systemic right ventricle (RV) is difficult but important for prognosis. Tissue motion annular displacement tracks displacement of the tricuspid annulus toward the apex. We evaluated this measure alongside fractional area change (FAC) on patients with single, RV prior to the bidirectional Glenn procedure. We tested both measures for correlation with outcomes. METHODS: Retrospective measurement of tissue motion annular displacement and FAC was performed on echocardiographic clips obtained prior to the bidirectional Glenn...
March 2018: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/29514226/geometric-changes-in-the-aortic-valve-annulus-during-the-cardiac-cycle-impact-on-aortic-valve-repair
#19
Johannes Petersen, Lisa Voigtländer, Niklas Schofer, Niklas Neumann, Yskert von Kodolitsch, Hermann Reichenspurner, Evaldas Girdauskas
OBJECTIVES: The growing experience in aortic valve (AV) repair showed that annular stabilization is a crucial component to achieve stable long-term results after AV repair. Dynamic changes in the AV annulus during the cardiac cycle may have an impact on annuloplasty design. METHODS: We retrospectively analysed full cardiac cycle multislice computed tomography data from 58 consecutive patients (mean age 75.9 ± 6.5 years, 36% men) with normally functioning tricuspid AVs (normal AV subgroup)...
March 5, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29510432/full-orifice-patching-without-annuloplasty-for-severe-functional-tricuspid-valve-regurgitation
#20
Antonio Maria Calafiore, Carlo Maria De Filippo, Antonio Totaro, Piero Pelini, Michele Di Mauro
Surgical treatment of severe functional tricuspid regurgitation associated with dilated right ventricle and increased chordal tethering (>8 mm) is challenging. We designed a technique where the anterior and posterior leaflets are detached from 50% of the annulus and a patch as large as the tricuspid orifice is sewn to augment the leaflets' tissue to force the coaptation with the septal leaflet. Annuloplasty is not performed, as it can only increase the chordal tethering, reducing the benefit of tissue augmentation...
March 6, 2018: Thoracic and Cardiovascular Surgeon
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