Physiology of Ventricular Septal Defect Shunt Flow in the Fetus Examined by Color Doppler M-Mode
نویسندگان
چکیده
منابع مشابه
Physiology of ventricular septal defect shunt flow in the fetus examined by color Doppler M-mode.
The fetal circulation is unique in having the right ventricle perform as a systemic pump delivering oxygen-enriched placental blood to the distal fetal systemic circulation via the ductus arteriosus. Both ventricles then operate at similar systemic pressures. For this reason, the pressure gradient across the interventricular septum is known to be minimal. It has been noted, however, in fetuses ...
متن کاملQuantitative, non-invasive assessment of ventricular septal defect shunt flow by measuring proximal isovelocity surface area on colour Doppler mapping.
OBJECTIVE To determine whether the proximal isovelocity surface area (PISA) method could be applied to estimate the magnitude of ventricular septal defect (VSD) shunt flow. DESIGN Prospective analysis of clinical, echocardiographic, and angiographic data. SETTING University hospital. PATIENTS 14 children with VSD. METHODS Colour Doppler images of VSD shunt flow were obtained in paraster...
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Combined two-dimensional and Doppler echocardiography has a high sensitivity and specificity for detection of isolated perimembranous ventricular septal defects. However, muscular or multiple ventricular septal defects may be difficult to diagnose with noninvasive methods, particularly in older children, necessitating angiography for accurate diagnosis. Detection of single and multiple ventricu...
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The presence oflow frequency diastolic murmurs, presumably due to increased flow through the respective atrio-ventricular valves, has been recognized in patients with atrial and ventricular septal defects for many years. The murmur in ventricular septal defect was reported by Laubry and Pezzi in 1921 and emphasized by Wood (1950). A publication from this institute drew attention to this phenome...
متن کاملAssessment of left ventricular function in secundum atrial septal defect by computer analysis of the M-mode echocardiogram.
Left ventricular function in 53 patients with secundum atrial septal defect was assessed by computer-assisted analysis of the left ventricular echocardiogram and by cardiac catheterization. The patients were divided into two groups, those younger and those older than 60 years, to investigate the effect of aging on left ventricular function. Cavity size was significantly smaller than normal (p l...
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ژورنال
عنوان ژورنال: Circulation
سال: 2000
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.101.10.e93