Mechanism of Aortic Valve Opening: Beyond the Pressure Gradient
... (130, 134, and 438 days, respectively). There was no evidence of device malfunction according to clinical (no change in effort ability) and echocardiographic (neutral position of the interventricular septum, laminar flow with normal velocities in inflow and outflow cannulae) criteria. Cardiac output (e ...
... (130, 134, and 438 days, respectively). There was no evidence of device malfunction according to clinical (no change in effort ability) and echocardiographic (neutral position of the interventricular septum, laminar flow with normal velocities in inflow and outflow cannulae) criteria. Cardiac output (e ...
Recommendations for the management of individuals with acquired
... arterial systolic pressure at rest and during exercise can be obtained by assessing maximum flow velocity in the presence of tricuspid regurgitation. An exercise stress test should be carried out to determine heart rate at maximum exercise, pressure gradients and pulmonary artery pressure, and possi ...
... arterial systolic pressure at rest and during exercise can be obtained by assessing maximum flow velocity in the presence of tricuspid regurgitation. An exercise stress test should be carried out to determine heart rate at maximum exercise, pressure gradients and pulmonary artery pressure, and possi ...
Morphological and Functional Modeling of the Heart Valves and
... enable dynamic four dimensional scanning of the beating heart over the whole cardiac cycle. Precise morphological and functional knowledge about the valvular apparatus is highly esteemed and it is considered a prerequisite for the entire clinical workflow including diagnosis, therapy-planning, surger ...
... enable dynamic four dimensional scanning of the beating heart over the whole cardiac cycle. Precise morphological and functional knowledge about the valvular apparatus is highly esteemed and it is considered a prerequisite for the entire clinical workflow including diagnosis, therapy-planning, surger ...
Jatrogenic left ventricular- right atrial fistula following mitral
... atrium is advocated as it will most likely expose the fistula. Secure closure is obtained through the right atrium at the same operation after insertion of the mitral valve substitute, thus avoiding a prolonged and complicated postoperative course. However, the LV-RA communication may not be immedia ...
... atrium is advocated as it will most likely expose the fistula. Secure closure is obtained through the right atrium at the same operation after insertion of the mitral valve substitute, thus avoiding a prolonged and complicated postoperative course. However, the LV-RA communication may not be immedia ...
A Disposable Bioreactor for Culturing and Testing of Tissue
... Peterson, 1998). In spite of all efforts made, it is still not clear which mechanical stimulation protocol will yield optimal results. In the Tissue Engineering Group of the Biomedical Engineering Department of the Eindhoven University of Technology the effect of cyclic strains on the strength of th ...
... Peterson, 1998). In spite of all efforts made, it is still not clear which mechanical stimulation protocol will yield optimal results. In the Tissue Engineering Group of the Biomedical Engineering Department of the Eindhoven University of Technology the effect of cyclic strains on the strength of th ...
Serotonin, and probably not Angiotensin II, mediates cyclic strain
... pressure overload, TGFβ1 plasma levels were also significantly increased8. TGFβ1 is known to transform fibroblast into metabolically active and functional myofibroblasts5. The signaling pathways that mediate strain-induced elevations of TGFβ1 are yet to be discovered. The heart valve consists of VIC ...
... pressure overload, TGFβ1 plasma levels were also significantly increased8. TGFβ1 is known to transform fibroblast into metabolically active and functional myofibroblasts5. The signaling pathways that mediate strain-induced elevations of TGFβ1 are yet to be discovered. The heart valve consists of VIC ...
Simulation of Aortic Valve Replacement Surgery Hadi Mohammadi
... final design of each mold. We used Mechanical Desktop V2013i CAD software for the perfection of the models all throughout. As mentioned earlier, the geometry of the proposed aortic valve here is inspired by a design modification on the Mitroflow bioprosthetic valve. The major advantage of this new d ...
... final design of each mold. We used Mechanical Desktop V2013i CAD software for the perfection of the models all throughout. As mentioned earlier, the geometry of the proposed aortic valve here is inspired by a design modification on the Mitroflow bioprosthetic valve. The major advantage of this new d ...
Formation of the Cardiac Loop
... oblique vein of the left atrium. 2. Right sinus horn incorporates into the wall of left atrium. 3. Sinuatrial orifice shifts to the right and is bordered by right & left venous valves (Septum ...
... oblique vein of the left atrium. 2. Right sinus horn incorporates into the wall of left atrium. 3. Sinuatrial orifice shifts to the right and is bordered by right & left venous valves (Septum ...
Percutaneous Mitral Valve Replacement
... The first two cases of human Tiara valve implantation were performed in Vancouver in 2014.24 Postprocedural echocardiograms obtained at 48 hours and at 1- and 2-month follow-up demonstrated good valve function and no significant residual MR. The first patient died due to congestive heart failure and ...
... The first two cases of human Tiara valve implantation were performed in Vancouver in 2014.24 Postprocedural echocardiograms obtained at 48 hours and at 1- and 2-month follow-up demonstrated good valve function and no significant residual MR. The first patient died due to congestive heart failure and ...
STATE OF ART ON TRANSCATHETER AORTIC VALVE
... Long-term results Like all innovations in medicine, also TAVI has suffered some initial skepticism. A main objection was the lack of results in the long term. Much of our uncertainties about today disappeared, since we can refer to reasonably long term follow-up. Moreover, independently by the condi ...
... Long-term results Like all innovations in medicine, also TAVI has suffered some initial skepticism. A main objection was the lack of results in the long term. Much of our uncertainties about today disappeared, since we can refer to reasonably long term follow-up. Moreover, independently by the condi ...
Flow Characteristics of the Medtronic CoreValve: Difficulties
... Background: Echocardiographic evaluation after transcatheter aortic valve implantation (TAVI) includes estimation of effective orifice area (EOA). EOA calculation depends on sub-valvular stroke volume (SV), which depends on sub-valvular diameter and velocity time integral (VTI). The Medtronic CoreVa ...
... Background: Echocardiographic evaluation after transcatheter aortic valve implantation (TAVI) includes estimation of effective orifice area (EOA). EOA calculation depends on sub-valvular stroke volume (SV), which depends on sub-valvular diameter and velocity time integral (VTI). The Medtronic CoreVa ...
Pericardial Effusions – Diagnosis and Treatment
... fluid accumulates rapidly, clinical signs of diminished peripheral perfusion usually dominate the clinical presentation. Signs of systemic congestion generally develop at venous pressures that are lower than those that cause pulmonary congestion. Most veterinary patients with PE are therefore presen ...
... fluid accumulates rapidly, clinical signs of diminished peripheral perfusion usually dominate the clinical presentation. Signs of systemic congestion generally develop at venous pressures that are lower than those that cause pulmonary congestion. Most veterinary patients with PE are therefore presen ...
Straddling mitral valve with hypoplastic right ventricle
... subxiphoid. apical. parasternal and supraslernal views, was performed in Patients I to 3. The techmque of echocardiographic examination and certain features in these patients were published previously (I). Pathology. A detailed study of the heart specimens from the two patients studied at autopsy wa ...
... subxiphoid. apical. parasternal and supraslernal views, was performed in Patients I to 3. The techmque of echocardiographic examination and certain features in these patients were published previously (I). Pathology. A detailed study of the heart specimens from the two patients studied at autopsy wa ...
Leaflet extension in rheumatic mitral valve reconstruction
... Mitral valve (MV) repair is preferred over replacement for its benefits of the preservation of ventricular function, lower operative mortality, superior long-term survival and avoidance of anticoagulation [1–3]. MV repair has been shown to have excellent durability in patients with mitral regurgitati ...
... Mitral valve (MV) repair is preferred over replacement for its benefits of the preservation of ventricular function, lower operative mortality, superior long-term survival and avoidance of anticoagulation [1–3]. MV repair has been shown to have excellent durability in patients with mitral regurgitati ...
Transcatheter aortic and mitral valve interventions
... cardiogenic shock, as a palliative treatment for end-stage patients or as a bridging technique until definitive AV implantation [4] . By contrast, the catheter-based approach to MS has yielded good outcomes, both acutely and in the long-term, and has established itself as the treatment of choice [5 ...
... cardiogenic shock, as a palliative treatment for end-stage patients or as a bridging technique until definitive AV implantation [4] . By contrast, the catheter-based approach to MS has yielded good outcomes, both acutely and in the long-term, and has established itself as the treatment of choice [5 ...
Huge Pericardial Cyst with Compressing Effects on the Right
... The cavity is filled with a clear fluid. The most common locations of these benign cysts are both (mainly right) cardiophrenic angles (1, 2, 4). Most of these lesions range between 1 and 5 cm in diameter, but rarely cysts measuring over 20 cm have also been reported in the literature (4). Pericardia ...
... The cavity is filled with a clear fluid. The most common locations of these benign cysts are both (mainly right) cardiophrenic angles (1, 2, 4). Most of these lesions range between 1 and 5 cm in diameter, but rarely cysts measuring over 20 cm have also been reported in the literature (4). Pericardia ...
00_Pg garda_q.cdr
... incomplete forms are more frequent and have a better prognosis, being described also in adult. 2. In the reported case an intervention for aortic coarctation was followed by echocardiographic monitoring for post intervention complications (recoarctation, mitral stenosis, aortic stenosis on bicuspid ...
... incomplete forms are more frequent and have a better prognosis, being described also in adult. 2. In the reported case an intervention for aortic coarctation was followed by echocardiographic monitoring for post intervention complications (recoarctation, mitral stenosis, aortic stenosis on bicuspid ...
Myxomatous degeneration ofmitral valve
... leaflets nor any temporal dissociation between the leaflets. Furthermore, differentiation of a mass from prolapse of both leaflets by angiography was difficult for two reasons: (1) a pulmonary angiogram was done rather than a left ventricular angiogram for fear of dislodging a portion of the mass. T ...
... leaflets nor any temporal dissociation between the leaflets. Furthermore, differentiation of a mass from prolapse of both leaflets by angiography was difficult for two reasons: (1) a pulmonary angiogram was done rather than a left ventricular angiogram for fear of dislodging a portion of the mass. T ...
PDF - Circulation
... gallops were heard. The electrocardiogram, which had been normal so far, showed inverted T waves in leads 1II and aVF as well as biphasic T waves in the left precordial leads stuggestive of left ventricular hypertrophy. Fluoroscopy revealed the heart size to be within normal limits. The pulmonary va ...
... gallops were heard. The electrocardiogram, which had been normal so far, showed inverted T waves in leads 1II and aVF as well as biphasic T waves in the left precordial leads stuggestive of left ventricular hypertrophy. Fluoroscopy revealed the heart size to be within normal limits. The pulmonary va ...
Echocardiography of the Tricuspid Valve in Congenital Left
... gallops were heard. The electrocardiogram, which had been normal so far, showed inverted T waves in leads 1II and aVF as well as biphasic T waves in the left precordial leads stuggestive of left ventricular hypertrophy. Fluoroscopy revealed the heart size to be within normal limits. The pulmonary va ...
... gallops were heard. The electrocardiogram, which had been normal so far, showed inverted T waves in leads 1II and aVF as well as biphasic T waves in the left precordial leads stuggestive of left ventricular hypertrophy. Fluoroscopy revealed the heart size to be within normal limits. The pulmonary va ...
ACQUIRED VITIUMS
... – when is an operation required? -> symptoms, decreased left ventricular function ...
... – when is an operation required? -> symptoms, decreased left ventricular function ...
Papillary fibroelastoma of the pulmonary valve
... primary cardiac tumor (after myxoma and lipoma), accounting for 7% to 9% of benign primary tumors [1, 2]. It usually involves the aortic or mitral valve, and less frequently the pulmonary or tricuspid valve; fibroelastoma can also develop from the papillary muscles, chordae tendineae, ventricular se ...
... primary cardiac tumor (after myxoma and lipoma), accounting for 7% to 9% of benign primary tumors [1, 2]. It usually involves the aortic or mitral valve, and less frequently the pulmonary or tricuspid valve; fibroelastoma can also develop from the papillary muscles, chordae tendineae, ventricular se ...
Cardiology cases or, Murmurs for Dummies - OSCE-Aid
... • The pulse rate is 60 beats per minute and regular. It is of a slow rising character. The BP is 100/80 with a narrow pulse pressure. On examination of the praecordium there is an ejection systolic murmur, heard loudest over the aortic area which radiates to the carotids. It is heard best on expirat ...
... • The pulse rate is 60 beats per minute and regular. It is of a slow rising character. The BP is 100/80 with a narrow pulse pressure. On examination of the praecordium there is an ejection systolic murmur, heard loudest over the aortic area which radiates to the carotids. It is heard best on expirat ...
Off-Pump Positioning of a Conventional Aortic Valve Prosthesis via
... Among the multiple issues raised by this novel access, the study focused on four issues: the use and implantation of the UCI; the creation of a clean apical port access; the navigating and positioning of the aortic valve prosthesis, and US image-guidance. UCI: The UCI was designed as an air-lock pro ...
... Among the multiple issues raised by this novel access, the study focused on four issues: the use and implantation of the UCI; the creation of a clean apical port access; the navigating and positioning of the aortic valve prosthesis, and US image-guidance. UCI: The UCI was designed as an air-lock pro ...
Valvular Heart Diseases - Interventional Cardiology Journal
... TAVI presents a higher risk of major vascular complications and stroke at 30 days, ranging from 3-5%, but with similar long-term cumulative incidence [20,30]. In other hand, SAVR presents higher rates of atrial fibrillation, major bleeding and acute kidney injury [22,31]. In regard to valve functio ...
... TAVI presents a higher risk of major vascular complications and stroke at 30 days, ranging from 3-5%, but with similar long-term cumulative incidence [20,30]. In other hand, SAVR presents higher rates of atrial fibrillation, major bleeding and acute kidney injury [22,31]. In regard to valve functio ...