ObstructionRVOTLVOTSeptal defectsRight ventricleTetralogy of FalTachycardiaCardiacStenosisHypertrophic CardiomyopathyAbnormalitiesArrhythmiasConduitAtrial septalAortaSeptumMitralPremature contractionsArrhythmogenicPulmonicFibrillationHeartConduitsValveValvularArterialDopplerImplicationsEchocardiography
Obstruction16
- Triple left ventricular outflow tract obstruction" by J. Chen, R. Shimony et al. (hofstra.edu)
- In cases of hypertrophic obstructive cardiomyopathy (HOCM), the systolic anterior motion of the mitral valve apparatus results in an obstruction of the left ventricular outflow tract (LVOT), which is known as the SAM [systolic anterior motion] phenomenon. (biomedcentral.com)
- We observed a severely impaired left ventricular function due to a combination of a thrombotic LVOT obstruction and distinctive mitral regurgitation in a 56-year-old Caucasian, female patient after massive transfusion with aggressive procoagulant therapy. (biomedcentral.com)
- Dynamic obstruction of the left-ventricular outflow tract is a rare condition. (biomedcentral.com)
- The known common causes of left ventricular outflow tract (LVOT) obstruction include hypertrophic obstructive cardiomyopathy (HOCM), dehydration, sepsis, cardiac surgical treatment after valve repair, and Takotsubo cardiomyopathy [ 1 ]. (biomedcentral.com)
- Relation between left ventricular outflow tract obstruction and left ventricular shape in patients with hypertrophic cardiomyopathy: A cardiac magnetic resonance imaging study. (medscape.com)
- Pulmonic valvular stenosis (PVS) is a form of right ventricular outflow tract obstruction (RVOTO). (medscape.com)
- In approximately 25% of patients there is a narrowing (obstruction) of the left ventricular outflow tract. (uni-saarland.de)
- The implant should conform to ventricular cavities without causing geometric distortion or obstruction of ventricular outflow tracts. (sbir.gov)
- According to Kaski, there have several innovations in HCM since the previous guidelines, such as when to consider cardiac myosin inhibitors for symptomatic left ventricular outflow tract obstruction. (medscape.com)
- Tetralogy of Fallot consists of 4 features: a large ventricular septal defect, right ventricular outflow tract obstruction and pulmonic valve stenosis, right ventricular hypertrophy, and over-riding of the aorta. (msdmanuals.com)
- Level of arterial desaturation is related to severity of the RV outflow tract obstruction. (msdmanuals.com)
- This displaced septum protrudes into the pulmonary outflow tract, often resulting in obstruction and hypoplasia of the downstream structures, including the pulmonary valve, main pulmonary artery, and branch pulmonary arteries. (msdmanuals.com)
- Pathophysiology depends on the degree of right ventricular outflow obstruction. (msdmanuals.com)
- Our results suggest that mothers who gave birth to infants with a congenital heart defect (including any heart defect, conotruncal defects, right ventricular outflow tract obstruction, and septal defects) were roughly 3 times more likely than mothers of infants with no birth defect to have worked as a nail technician during early pregnancy. (cdc.gov)
- In the infantile form, clinically significant storage occurs in the heart, resulting in progressive cardiomegaly with left ventricular (LV) thickening that eventually leads to outflow tract obstruction. (medscape.com)
RVOT12
- citation needed] The right ventricular outflow tract (RVOT) is an infundibular extension of the ventricular cavity that connects to the pulmonary artery. (wikipedia.org)
- A form of ventricular tachycardia originating from this anatomical structure is called RVOT tachycardia. (wikipedia.org)
- Nearly all conduits used for right ventricular outflow tract (RVOT) reconstruction require replacement because of stenosis or insufficiency, especially in infants and young children. (figshare.com)
- Initial MRI (A) and final angiography in the native RVOT (B). CP stent implanted in Contegra conduit (CC) and AndraStent 43XL stent implanted in the native outflow tract (NOT). (pcronline.com)
- Approximately 5% have an anomalous coronary artery crossing the right ventricular outflow tract (RVOT)2. (pcronline.com)
- A recent autopsy study revealed increase in biventricular collagen with myocardial fibrosis when compared with control subjects although the main affected cardiac territory is the right ventricular outflow tract (RVOT). (bvsalud.org)
- Background: The purpose of this study was to compare the spatial resolution of activation mapping and pacemapping in patients undergoing ablation of idiopathic ventricular tachycardia (VT) arising from the right ventricular outflow tract (RVOT). (northwestern.edu)
- Brugada syndrome (BrS) is a complex arrhythmogenic disease displaying electrical and micro-structural abnormalities mainly located at the epicardium of the right ventricular outflow tract (RVOT). (kent.ac.uk)
- It is well-known that fibrosis, fatty infiltration, inflammation and reduced gap junction expression have been demonstrated at the epicardial anterior aspect of the RVOT providing the arrhythmogenic substrate for ventricular arrhythmic events in BrS. (kent.ac.uk)
- The electrophysiological characteristics of diurnal variations in idiopathic right ventricular outflow tract (RVOT) VA have not previously been elucidated. (tmu.edu.tw)
- Today, the U.S. Food and Drug Administration approved the first in the world non-surgical heart valve to treat pediatric and adult patients with a native or surgically-repaired right ventricular outflow tract (RVOT), the part of the heart that carries blood out of the right ventricle to the lungs. (fda.gov)
- The pulmonary annulus and the right ventricular outflow tract (RVOT) may be narrowed as well. (medscape.com)
LVOT5
- The left ventricular outflow tract (LVOT), which connects to the aorta, is nearly indistinguishable from the rest of the ventricle. (wikipedia.org)
- In this condition, the anterior leaflet (cusp) moves towards the LVOT and obstructs the outflow tract. (biomedcentral.com)
- Background: The shape and duration of left ventricular outflow tract (LVOT) flow has not been applied to assess the central haemodynamics, although LVOT flow is confronted with afterload of arterial system during systole. (ewha.ac.kr)
- The primary endpoint is a change in Valsalva left ventricular outflow tract (LVOT) gradient from baseline to week 30. (biospace.com)
- Now, you see a pulsed-wave Doppler through the left ventricular outflow tract (LVOT). (medscape.com)
Septal defects5
- Membranous-type ventricular septal defect (pmVSD) accounts for over two thirds of ventricular septal defects, and approximately half require repair. (sbir.gov)
- A design specifically to achieve occlusion of membranous-type ventricular septal defects in children and newborn infants. (sbir.gov)
- The study found an association between tobacco exposure and certain types of defects such as those that obstruct the flow of blood from the right side of the heart into the lungs (right ventricular outflow tract obstructions) and openings between the upper chambers of the heart (atrial septal defects). (cdc.gov)
- Based on the findings of this and other studies, eliminating smoking before or very early in pregnancy could prevent as many as 100 cases of right ventricular outflow tract obstructions and 700 cases of atrial septal defects each year in the United States. (cdc.gov)
- It is estimated that right ventricular outflow tract obstructions affect approximately 2,500 infants per year and atrial septal defects affect approximately 5,600 infants per year in the United States. (cdc.gov)
Right ventricle4
- A ventricular outflow tract is a portion of either the left ventricle or right ventricle of the heart through which blood passes in order to enter the great arteries. (wikipedia.org)
- They both possess smooth walls, and are derived from the embryonic bulbus cordis In both left and right ventricle there are specific structures separating the inflow and outflow of blood. (wikipedia.org)
- In the right ventricle, the inflow and outflow is separated by the supraventricular crest. (wikipedia.org)
- Occlusion of the outflow tract in the RIGHT VENTRICLE of the heart. (bvsalud.org)
Tetralogy of Fal4
- The ventricular septal defect in tetralogy of Fallot is often described as a malalignment type, since the conal septum is displaced anteriorly. (msdmanuals.com)
- Pediatric patients with surgical ventricular scars, such as those with postoperative ventricular tachycardia (VT) after repair of tetralogy of Fallot, are commonly cited examples of this mechanism. (medscape.com)
- are associated with right ventricular fibrotic load in repaired tetralogy of Fallot patients: a cardiovascular magnetic resonance study. (cdc.gov)
- A loss-of-function mutation p.T256M in NDRG4 is implicated in the pathogenesis of pulmonary atresia with ventricular septal defect (PA/VSD) and tetralogy of Fallot (TOF). (cdc.gov)
Tachycardia2
- Congenital ion channel diseases (long QT or short QT syndromes, Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia) are a group of rare cardiac arrhythmia syndromes caused by genetic changes in certain ion channels in the heart muscle. (uni-saarland.de)
- Go to Ventricular Tachycardia for complete information on this topic. (medscape.com)
Cardiac6
- A fast and reliable left ventricular outflow diameter (LVOTd) estimation may aid in quickly estimating cardiac output. (biomedcentral.com)
- One of the most frequently used measurements is cardiac output (CO), calculated from the velocity-time integral and left ventricular outflow tract diameter (LVOTd). (biomedcentral.com)
- Cardiac diagnosis was interrupted aortic arch, VSD, very narrow LV outflow tract. (chss.org)
- For the heart valve inset, other sites are cardiac tissue NOS (n = 18), right ventricular outflow tract conduit (n = 3), pacemaker or implantable cardiac device lead (n = 4), and coronary cusp (n = 1). (cdc.gov)
- Editorial: Cardiac or T wave memory after radiofrequency ablation of right ventricular outflow tract ectopics. (bvsalud.org)
- Ventricular arrhythmia (VA) may be an isolated and completely benign finding in children, a marker of serious systemic disease or myopathy, or a mechanism for syncope and sudden cardiac death (SCD). (medscape.com)
Stenosis1
- Bacterial endocarditis in patients with aortic stenosis, pulmonary stenosis, or ventricular septal defect. (medscape.com)
Hypertrophic Cardiomyopathy1
- Hypertrophic cardiomyopathy (HCM) is the most common heritable cardiovascular disorder and is characterized by left ventricular hypertrophy (LVH), which is unexplained by abnormal loading conditions. (mdpi.com)
Abnormalities1
- Interestingly, current findings correlate the presence of large-sized endocardial unipolar electroanatomical abnormalities with either ventricular fibrillation inducibility during programmed ventricular stimulation or symptom status. (kent.ac.uk)
Arrhythmias1
- This may lead to a dynamic compression of the left vessel wall during increased heart activity - myocardial ischemia may occur and trigger ventricular arrhythmias. (uni-saarland.de)
Conduit1
- Modified technique for heterotopic implantation of a right ventricular outflow tract conduit. (unil.ch)
Atrial septal1
- These patients often required concomitant surgical repair of associated ventricular septal defect, atrial septal defect, and the aortic valve. (medscape.com)
Septum1
- Ventricular Septal Defect (VSD) A ventricular septal defect (VSD) is an opening in the interventricular septum, causing a shunt between ventricles. (msdmanuals.com)
Mitral1
- Mitral annular dynamics are influenced by left ventricular load and contractility in an acute animal model. (uib.no)
Premature contractions1
- The diurnal variation type (group 1, n = 36) was defined as those patients who had most ventricular premature contractions (VPCs) during the night hours by preprocedure Holter recordings. (tmu.edu.tw)
Arrhythmogenic1
- Diurnal variations in ventricular tachyarrhythmias (VAs) have been demonstrated in idiopathic arrhythmogenic heart disease. (tmu.edu.tw)
Pulmonic1
- The aortic and pulmonic valves develop from the outflow tract of the endocardial cushion, also believed to have neural crest cell migration from the brachial crest during development. (medscape.com)
Fibrillation1
- Chaotic rhythms (eg, ventricular fibrillation) are also examples of reentry mechanisms. (medscape.com)
Heart5
- The outflow tract is derived from the secondary heart field, during cardiogenesis. (wikipedia.org)
- Electrophysiological changes of autonomic cells in left ventricular outflow tract in guinea pigs with iron deficiency anemia complicated with chronic heart failure. (qxmd.com)
- The standard microelectrode technique was used to observe electrophysiological changes of autonomic cells in the outflow tract of left ventricular heart failure complicated with iron deficiency anemia in guinea pig model. (qxmd.com)
- If the ventricular wall hypertrophy is not able to compensate for the increase in afterload, LV systolic function may decrease, and heart failure can ensue. (medscape.com)
- Ventricular septal defect is the most common congenital heart defect. (sbir.gov)
Conduits1
- Polytetrafluoroethylene conduits versus homografts for right ventricular outflow tract reconstruction in infants and young children: an institutional experience. (figshare.com)
Valve1
- [ 1 ] SVA is commonly associated with aortic valve regurgitation and/or ventricular septal defect. (medscape.com)
Valvular1
- The pathology of CHD is characterized by plaque-like deposition of fibrous tissue on valvular cusps, leaflets, papillary muscles, chordae, and ventricular walls. (karger.com)
Arterial1
- Methods: We studied 258 subjects (175 females, age 61 ± 11 years) with normal left ventricular (LV) systolic function who underwent supine bicycle stress echocardiography and arterial tonometry simultaneously at rest and at peak exercise. (ewha.ac.kr)
Doppler1
- You can see some of the flow heading towards the left ventricular outflow tract inside the continuous-wave Doppler during systole. (medscape.com)
Implications1
- Comparison of ultrasound vector flow imaging and CFD simulations with PIV measurements of flow in a left ventricular outflow trackt phantom - Implications for clinical use and in silico studies. (uib.no)
Echocardiography1
- Left Ventricular Contraction Pattern in Chronic Aortic Regurgitation and Preserved Ejection Fraction: Simultaneous Stress-Strain Analysis by Three-Dimensional Echocardiography. (uib.no)