Echocardiographic features of the morphologically right ventriculo-arterial junction

2005 ◽  
Vol 15 (S1) ◽  
pp. 17-26 ◽  
Author(s):  
Richard M. Martinez ◽  
Robert H. Anderson

In the normal heart, the morphologically right ventricle supports the pulmonary trunk. The key to echocardiographic evaluation of the junction between these structures is to understand not only the arrangement of the pulmonary valve, but also the complete muscular infundibulum that supports the valvar leaflets, lifting the valvar complex away from the base of the ventricular mass. As explained in the previous review,1 it is the presence of this free-standing muscular infundibular sleeve that makes it possible for the surgeon to remove the pulmonary valve for use as an allograft in the Ross procedure.2 In this review, we will address the echocardiographic features of the junction, considering primarily the situation in which the morphologically right ventricle supports the pulmonary trunk, but making comparisons with the abnormal arrangements in which either the aorta, or both arterial trunks, arise from the right ventricle. As we will see, the basic arrangement of the free-standing complete muscular infundibulum, or conus, is preserved with these abnormal arrangements, but there can be variation depending on the precise arrangement of the inner heart curvature, or ventriculo-infundibular fold, and the morphology can be further changed depending on the relationship of the arterial trunks themselves. The key to analysis, therefore, and also to accurate description, is to analyse separately the way in which the arterial trunks are joined to the ventricular mass, the relationships of the trunks one to the other, and the precise structure of the supporting right ventricular outflow tract, or outflow tracts in the setting of double outlet connection. If each of these features is then described in its own right, avoiding the temptation to make inferences regarding one feature from knowledge of another, then it is possible to avoid many of the persisting controversies relating to nomenclature.

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
C Fiore ◽  
A M F Ali ◽  
T Kemaloglu Oz ◽  
G Cagnazzo ◽  
M Melone ◽  
...  

Abstract A 77-year-old female, known hypertensive and dyslipidemic on treatment presented with three episodes of syncope in the last two months. On examination; there was grade 4/6 harsh systolic murmur on the lateral sternal border. Transthoracic echocardiography was difficult because of mesocardia and abnormal rotation of the heart due to enlarged right sided chambers. There is mild left ventricular hypertrophy with normal ejection fraction, no left sided valvular disease. The right ventricle was hypertrophied and dilated with normal RV function. The pulmonary valve was thickened with significant systolic flow aliasing through the valve with significant regurgitation and huge main pulmonary trunk aneurysm (59 mm at its wideset diameter) (Figure 1). Transthoracic approach did not allow a correct alignment of the Doppler CW and the correct estimate of pulmonary valvulopathy; TEE was performed with a correct visualization of the valve in deep transgastric projection at 90 degrees. The valve was thickened, fibrotic, degenerated with systolic doming of leaflets (Figure 2) and peak systolic gradient ∼ 70 mmHg (Figure 3). 3D reconstruction of the valve showed a tricuspid valve (Figure 4) with a valve area ∼ 0.9 cm2 using planimetry in MPR (Figure 5). CT scan was performed which confirmed the main pulmonary trunk aneurysm ∼ 60 mm (Figure 6). Therefore, in light of the clinical and instrumental picture, the patient was referred to heart team discussion for the plan of surgical intervention. Discussion According to the ESC guidelines for grown up congenital heart disease in 2010, this pulmonary valve should be intervened upon as it is severe symptomatic PS (1), but there are 2 problems with this case; the first is significant associated PR, so no place for balloon dilatation here, the second problem is the pulmonary artery aneurysm (PAA). The dilemma of management of pulmonary PAA is that all the available data are about aortic aneurysms. Indications for intervention for PAA include: Absolute PAA diameter ≥ 5.5 cm, Increase in the diameter of the aneurysm of ≥ 0.5 cm in 6 mo, Compression of adjacent structures, Thrombus formation in the aneurysm sack, Evidence of valvular pathologies or shunt flow Verification of PAH, Signs of rupture or dissection (2). Surgery could include: Aneurysmorrhaphy only decreases the diameter of the vessel (3). Aneurysmectomy and repair or replacement of the right ventricular outflow tract is commonly used technique recently and mostly suits connective tissue disorders (6). Also, Replacement of the PA and the pulmonary trunk with a conduit (Gore-Tex or Dacron tubes, homografts, or xenografts) starting in the right ventricular outflow tract with replacement of the pulmonary valve (4). Conclusion PAA management is currently challenging because there are no clear guidelines on its optimal treatment. The presence of significant pulmonary valve dysfunction could affect the decision making of the associated PAA management. Abstract P180 Figure.


2019 ◽  
Vol 21 (1) ◽  
pp. 65-66
Author(s):  
Sang-Hoon Seol

Double-chambered right ventricle (DCRV) is a cardiac disease of the right ventricular outflow tract obstruction characterized by anomalous muscle bundles that divide the right ventricle into two chambers. It may be also develop over time as an acquired lesion in patients with an abnormally short distance between the moderator band and the pulmonary valve. This report highlights the case of a man with double-chambered right ventricle after ventricular septal defect operation, who presented with syncope J MEDICINE JAN 2020; 21 (1) : 65-66


1995 ◽  
Vol 5 (1) ◽  
pp. 78-81
Author(s):  
Eric Rosenthal ◽  
Shakeel A. Qureshi ◽  
Michael Tynan

SummaryA 33-year-old woman known to have tetralogy of Fallot and a straddling tricuspid valve had bilateral systemic-to-pulmonary arterial shunts constructed at the age of six months. She subsequently developed infundibular atresia. Antegrade flow of blood from the right ventricle to pulmonary trunk was re-established by percutaneous laser perforation of the outflow tract, later followed by implantation of a stent.


Heart ◽  
2021 ◽  
pp. heartjnl-2021-320121
Author(s):  
Emilie Laflamme ◽  
Rachel M Wald ◽  
S Lucy Roche ◽  
Candice K Silversides ◽  
Sara A Thorne ◽  
...  

BackgroundComplications and need for reinterventions are frequent in patients with pulmonary valve stenosis (PVS). Pulmonary regurgitation is common, but no data are available on outcome after pulmonary valve replacement (PVR).MethodsWe performed a retrospective analysis of 215 patients with PVS who underwent surgical valvotomy or balloon valvuloplasty. Incidence and predictors of reinterventions and complications were identified. Right ventricle (RV) remodelling after PVR was also assessed.ResultsAfter a median follow-up of 38.6 (30.9–49.4) years, 93% of the patients were asymptomatic. Thirty-nine patients (18%) had at least one PVR. Associated right ventricular outflow tract (RVOT) intervention and the presence of an associated defect were independent predictors of reintervention (OR: 4.1 (95% CI 1.5 to 10.8) and OR: 3.6 (95% CI 1.9 to 6.9), respectively). Cardiovascular death occurred in 2 patients, and 29 patients (14%) had supraventricular arrhythmia. Older age at the time of first intervention and the presence of an associated defect were independent predictors of complications (OR: 1.0 (95% CI 1.0 to 1.1) and OR: 2.1 (95% CI 1.1 to 4.2), respectively). In 16 patients, cardiac magnetic resonance before and after PVR was available. The optimal cut-off values for RV volume normalisation were 193 mL/m2 for RV end-diastolic volume indexed(sensitivity 80%, specificity 64%) and 100 mL/m2 for RV end-systolic volume indexed(sensitivity 80%, specificity 56%).ConclusionsPrevious RVOT intervention, presence of an associated defect and older age at the time of first repair were predictors of outcome. More data are needed to guide timing of PVR, and extrapolation of tetralogy of Fallot guidelines to this population is unlikely to be appropriate.


2017 ◽  
Vol 136 (3) ◽  
pp. 262-265 ◽  
Author(s):  
Turgut Karabag ◽  
Caner Arslan ◽  
Turab Yakisan ◽  
Aziz Vatan ◽  
Duygu Sak

ABSTRACT CONTEXT: Obstruction of the right ventricular outflow tract due to metastatic disease is rare. Clinical recognition of cardiac metastatic tumors is rare and continues to present a diagnostic and therapeutic challenge. CASE REPORT: We present the case of a patient who had severe respiratory insufficiency and whose clinical examinations revealed a giant tumor mass extending from the right ventricle to the pulmonary artery. We discuss the diagnostic and therapeutic options. CONCLUSION: In patients presenting with acute right heart failure, right ventricular masses should be kept in mind. Transthoracic echocardiography appears to be the most easily available, noninvasive, cost-effective and useful technique in making the differential diagnosis.


2020 ◽  
Vol 8 ◽  
pp. 232470962094049
Author(s):  
Robin Boyer ◽  
Charnpreet Upple ◽  
Fowrooz Joolhar ◽  
Greti Petersen ◽  
Arash Heidari

Pulmonary autograft, or Ross procedure, is performed by supplanting a diseased aortic valve with the patient’s own pulmonary valve. Reconstruction of the right ventricular outflow tract is then completed using a pulmonary homograft. To our knowledge, infective endocarditis occurring decades after the Ross procedure has not been reported. Diligent echocardiographic examination can be crucial to ensure prompt treatment and avoid the 25% mortality rate associated with infective endocarditis. Clinical suspicion should remain high in those with a pulmonary autograft history. In this article, we report the case of a 39-year-old patient with infective endocarditis presenting 22 years after Ross procedure.


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