Jingnan Zhang¹, Junyi Wan¹, Yihang Li², Yu Han², Jiahua Pan³, Fang Fang¹, Shiliang Jiang⁴, Xiangbin Pan¹, Gejun Zhang^1,*

Congenital Heart Disease, Vol.18, No.2, pp. 219-234, 2023, DOI:10.32604/chd.2023.027562

Abstract Background: The Venus-P valve was the first self-expanding valve used world-wide for transcatheter pulmonary valve replacement (TPVR) in patients with severe pulmonary regurgitation (PR). We intended to report the extended follow-up results from the prospective trial (No. NCT02590679). Methods: A total of 38 patients with severe PR (mean age 24.2 ± 13.2) were included. Follow-up data were obtained after implanted at 1, 6, and 12 months and yearly after. The frame geometry was assessed on post-implant computer tomography (CT) scanning by calculating the non-circularity [circularity ratio (minimum diameter/maximum diameter) < 0.9] and under-expansion [expansion ratio (derived external valve area/nominal external valve area)… More > Graphic Abstract

Alexander C. Egbe, William R. Miranda, Patricia A. Pellikka, Sorin V. Pislaru, Barry A. Borlaug, Srikanth Kothapalli, Sindhura Ananthaneni, Harigopal Sandhyavenu, Maria Najam, Mohamed Farouk Abdelsamid, Heidi M. Connolly

Congenital Heart Disease, Vol.14, No.4, pp. 657-664, 2019, DOI:10.1111/chd.12768

Abstract Background: We hypothesized that echocardiographic indices of right ventricular to pulmonary artery (RV‐PA) coupling were comparable to cardiac magnetic resonance imaging (CMRI)‐derived RV volumetric indices in predicting disease severity in chronic pulmonary regurgitation (PR).
Methods: Patients with ≥ moderate PR (2003‐2015) with and without prior CMRI scans were enrolled into the study cohort and validation cohort, respectively. Endpoint was to determine the association between noninvasive RV‐PA coupling in‐ dices (tricuspid annular plane systolic excursion/right ventricular systolic pressure [TAPSE/RVSP] and fractional area change [FAC]/RVSP ratio) and markers of disease severity, and compared this association to that of CMRI‐derived RV volumetric indi‐… More >

An Van Berendoncks^1,2, Roderick Van Grootel¹, Jackie McGhie¹, Matthijs van Kranenburg¹, Myrthe Menting¹, Judith A.A.E. Cuypers¹, Ad J.J.C. Bogers³, Maarten Witsenburg¹, Jolien W. Roos‐Hesselink¹, Annemien E. van den Bosch¹

Congenital Heart Disease, Vol.14, No.4, pp. 628-637, 2019, DOI:10.1111/chd.12762

Abstract Aims: Reliable evaluation of the severity and consequences of pulmonary regurgita‐ tion (PR) in patients with repaired tetralogy of Fallot (TOF) is crucial to timely identify the need for pulmonary valve intervention. We aimed to identify the accuracy of echocardiographic parameters to differentiate between moderate and severe PR, using phase contrast cardiac magnetic resonance imaging (CMR) as gold standard.
Methods and results: In this cross‐sectional study, 45 TOF patients with both echo‐ cardiographic and CMR measurements of PR were enrolled. All quantitative and semiquantitative echocardiographic measurements such as pressure half time (PHT), Color flow jet width (CFJW), ratio CFJW/right ventricle… More >

Clotilde Kingsley¹, Saad Ahmad², John Pappachan¹, Sujata Khambekar¹, Thomas Smith¹, Diane Gardiner¹, James Shambrook¹, Shankar Baskar³, Ryan Moore³, Gruschen Veldtman³

Congenital Heart Disease, Vol.13, No.2, pp. 288-294, 2018, DOI:10.1111/chd.12569

Abstract Background: The right ventricular (RV) contractile reserve is a measure of the dynamic function of the RV and is a sensitive indicator of volume load. This can be measured noninvasively using the tricuspid annular plane systolic excursion (TAPSE) during exercise. We studied the RV contractile reserve of patients after tetralogy of Fallot (TOF) repair with varying degree of RV dilation and pulmonary regurgitation (PR), and compared them to a control group.
Methods: Twenty-six patients who had undergone TOF repair (mean age 29 ± 10 years) were identified and stratified into three group based on the presence and severity of RV… More >

Vidhya Annavajjhala¹, Rajesh Punn¹, Theresa A. Tacy¹, Frank L. Hanley², Doff B. McElhinney²

Congenital Heart Disease, Vol.14, No.5, pp. 691-699, 2019, DOI:10.1111/chd.12772

Abstract Background: Little is known about the early time course of biventricular function and mechanics after tetralogy of Fallot (TOF) repair. We sought to evaluate and describe the evolution of the right ventricle (RV) after TOF repair in young infants and children using conventional echocardiographic parameters and global longitudinal strain (GLS).
Methods: A retrospective review was performed of all patients with TOF and pulmo‐ nary stenosis who underwent repair from January 2002 to September 2015 and had at least 3 serial postsurgical echocardiograms spanning from infancy to early child‐ hood (<8 years). Student’s t test was performed to compare patients who… More >

Ashish Das^∗, William M. Gottliebson^†,‡, Madhura Karve^∗, Rupak Banerjee^∗,§,¶

Molecular & Cellular Biomechanics, Vol.8, No.1, pp. 21-42, 2011, DOI:10.3970/mcb.2011.008.021

Abstract Right ventricular (RV) enlargement and pulmonary valve insufficiency (PI) are well-known, unavoidable long term sequelae encountered by patients who undergo tetralogy of Fallot (TOF) surgery. Despite their lifelong need for cardiac surveillance and occasional re-intervention, there is a paucity of numerical data characterizing blood flows in their pulmonary arteries (PA). Specifically, although PA regurgitation is well-known to be ubiquitously present in adult repaired TOF (rTOF) patients yet, there have been only limited numerical studies to fully characterize this process. The few studies available have utilized idealized, simplistic geometric models or overly simplistic boundary conditions that fail to account for flow… More >