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Valve Dysfunction (valve + dysfunction)

Distribution by Scientific Domains
Medical Sciences100%

Selected Abstracts

Asymptomatic Prosthetic Valve Dysfunction: Pannus?

ARTIFICIAL ORGANS, Issue 5 2002
Eiki Tayama
No abstract is available for this article. [source]

Octopus Papillary Muscle Associated with a Left Lateral Accessory Pathway

CONGENITAL HEART DISEASE, Issue 6 2009
Manisha S. Patel MD
ABSTRACT Left ventricular papillary muscle abnormalities are rare malformations. They have been related to significant mitral valve dysfunction and left ventricular midcavitary obstruction. We report our experience with a young adult who presented with palpitations. An echocardiogram on the patient showed an "octopus-like" left ventricular papillary muscle. Subsequent electrophysiologic testing showed evidence of supraventricular tachycardia via a left lateral accessory pathway associated with the abnormal insertion of the papillary muscle attachments. [source]

Successful Repair of Aortic and Mitral Incompetence Induced by Methylsergide Maleate: Confirmation by Intraoperative Transesophageal Echocardiography

ECHOCARDIOGRAPHY, Issue 3 2003
D.O., Thomas Joseph
Methylsergide maleate, an effective anti-migraine medication, has a well-documented association with left-sided cardiac valve dysfunction. Prior reports have described cardiac valve dysfunction in patients using methylsergide chronically for a minimum of 6 years, with surgical intervention consisting of valve replacement for patients with intractable congestive heart failure. We report a 51-year-old woman who developed severe mitral and aortic valvular dysfunction after taking methylsergide maleate for migraine headaches for a period of 19 months, and who subsequently underwent aortic and mitral valve repair with excellent short-term results. (ECHOCARDIOGRAPHY, Volume 20, April 2003) [source]

Mechanical Prosthetic Valve Dysfunction Causing Pulsus Alternans Leading to Intermittent Electromechanical Dissociation: A Case Report and Literature Review

JOURNAL OF CARDIAC SURGERY, Issue 6 2007
Vasha Kaur M.B.Ch.B. (Hons)
She initially developed pulsus alternans which led, over a few hours, to intermittent electromechanical dissociation. Clinical and echocardiographic findings are described. Emergency surgical intervention revealed a piece of chorda wedged between the disc occluder and the valve ring. This case illustrates clinical and Doppler echocardiographic features associated with a rare presentation of an unusual perioperative complication of prosthetic mitral valve dysfunction. We have also included a brief review of related literature. [source]

Obstruction of St. Jude Medical Valves in the Aortic Position: Plasma Transforming Growth Factor Type Beta 1 in Patients With Pannus Overgrowth

ARTIFICIAL ORGANS, Issue 3 2010
Hideki Teshima
Abstract The study investigated the hypothesis that plasma transforming growth factor type beta 1 (TGF-,1) initiated pannus overgrowth in cases with aortic prosthetic valve dysfunction (PVD). Patients with obstruction of an aortic St. Jude Medical valve in 26 cases (PVD group) and without obstruction in 48 cases (control group) were studied. Plasma TGF-,1, the intensity of the prothrombin time,international normalized ratio (PT-INR), and the interruption of an oral anticoagulant medicine were conducted. Plasma TGF-,1 levels in the PVD group (87.7 ± 29.2 ng/mL) were significantly higher (P < 0.05) than in the control group (73.7 ± 25.2 ng/mL). The interruption of an oral anticoagulant medicine in 54% of the PVD group versus 12% of the control group was identified (P < 0.001). The mean value of the PT-INR in the PVD group (1.75 ± 0.30) and control group (1.75 ± 0.30) was not significantly different (P = 0.82). In conclusion, elevated levels of plasma TGF-,1 may play a role in pannus overgrowth. [source]

Dopamine agonist therapy and cardiac valve dysfunction

CLINICAL ENDOCRINOLOGY, Issue 5 2007
Mark Sherlock
No abstract is available for this article. [source]

Clinically and histologically silent Q fever endocarditis accidentally diagnosed by PCR

CLINICAL MICROBIOLOGY AND INFECTION, Issue 2 2002
B. Issartel
A case of Q fever endocarditis was diagnosed in a patient with no sign of active endocarditis by performing PCR targeting eubacterial 16S rDNA on the resected mitral valve. The diagnosis was confirmed by detection of high levels of anti- Coxiella burnetti antibodies, positive immunohistologic analysis of the valve tissue with specific antibodies and culture of C. burnetti from the valve tissue. As this patient had an unexplained aggravation of valve dysfunction, we recommended routine serologic testing for C. burnetti to allow the diagnosis of Q fever endocarditis at a very early stage. [source]