نتایج جستجو برای: septal penetration
تعداد نتایج: 65161 فیلتر نتایج به سال:
BACKGROUND Conventional right ventricular (RV) apex pacing can lead to adverse clinical outcome associated with asynchronous activation and reduced left ventricular (LV) pump function. We investigated to what extent alternate RV (septum) and LV (septum, apex) pacing sites improve LV electric activation, mechanics, hemodynamic performance, and efficiency over 4 months of pacing. METHODS AND RE...
a 30-year-old woman with a history of two pregnancy losses in the 8th and 16th weeks of pregnancy and a history of metroplasty referred to our infertility clinic. hysterosalpingography (hsg) was performed as a standard infertility evaluation following surgery (fig 1).
with a small ventricular communication, to a large ventricular septal defect dominating the picture with mild obstruction. When the pulmonary stenosis is mild, whether the ventricular septal defect is small or large, a left-to-right shunt is always present, giving the clinical picture of a ventricular septal defect. On the other hand, if the stenosis is severe and the ventricular septal defect ...
BACKGROUND Atrial septal aneurysm has been considered a potential source of cardiogenic embolism for many years. The present study evaluated the prevalence and characteristics of atrial septal aneurysm in a patient population with stroke and normal carotid arteries compared to a control population without stroke. METHODS A total of 606 patients were enrolled between November 1990 and December...
OBJECTIVE In this study, we tested 3 techniques of atrial septal defect closure under real-time 3-dimensional echocardiography guidance in a swine model. METHODS The operations were conducted under the sole guidance of a modified real-time 3-dimensional echocardiography guidance system with a x4 matrix transducer (Sonos 7500, Philips Medical Systems, Andover, Mass). Eighteen swine were anesth...
In order to evaluate the ability of the echocardiogram to detect and localize left main or left anterior descending (LAD) coronary artery lesions, 43 patients were studied. The systolic excursion of the left side of the septum and the ratio of posterior wall to septal excursion were measured. Seventeen patients had no LAD lesions; all had systolic septal excursion of 3 mm or greater. Twelve pat...
Septal infusions of the gamma-aminobutyric acid (GABA)(A) agonist muscimol impair memory, and the effect likely involves the hippocampus. GABA(A) receptors are present on the perikarya of cholinergic and GABAergic septo-hippocampal (SH) projections. The current experiments determined whether GABAergic SH projections are involved in the memory-impairing effects of septal GABA(A) receptor activat...
background: pulmonary arterial hypertension is a complication of most congenital heart diseases. we sought to assess the effect of sildenafil on patients suffering from pulmonary arterial hypertension in association with congenital heart disease on the basis of clinical and echocardiographic parameters and compare the catheterization and treatment results so as to evaluate the predictive value ...
myocardial free wall rupture is a catastrophic complication of acute myocardial infarction, and prognosis will depend on the prompt diagnosis by echocardiography, extension of infarct size, and prompt surgical treatment. free wall rupture concomitant with ventricular septal defect (vsd) may be more complicated for management. a case of a 69-year-old man with myocardial free wall rupture and vsd...
BACKGROUND Septal ulceration is a mucositis involving the mucous membranes of the nasal septum. Patients often complain of nasal irritation, crusting, and epistaxis. Presently, there is no gold standard for the treatment of septal ulcerations. Currently described therapies include local debridement, septal dermoplasty, septal flap reconstruction, and cadaveric dermal graft repair; however, no t...
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