Determination of ventricular fluid outflow resistance in patients with ventriculomegaly.
نویسندگان
چکیده
Resorption of the ventricular fluid was studied by measuring ventricular fluid outflow resistance during steady state 1.5 and 5.0 ml/min infusions in 26 patients with substantial enlargement of the supratentorial ventricular system. This test may avoid unnecessary use of shunts, but a shunt could be introduced during the same procedure.
منابع مشابه
Evaluation of operative left ventricular outflow tract lesions with a fluid impedance plot.
A hydraulic fluid impedance plot is produced by plotting instantaneous differential pressure against phasic blood flow across a vascular segment. This simple plot quantitatively and compactly describes the changes in flow resistance (impedance) throughout the entire cardiac cycle. Impedance plots were obtained before and after corrective surgery in patients with a variety of left ventricular ou...
متن کاملHow does CSF dynamics change after shunting?
OBJECTIVE Hydrocephalus is much more complex than a simple disorder of cerebrospinal fluid (CSF) circulation. Shunting primarily corrects disturbed fluid flow which may have an impact on cerebral blood flow and metabolism. We studied hydrocephalic patients before and after shunting to characterize changes in their CSF compensatory parameters. MATERIAL AND METHODS We selected 25 patients and s...
متن کاملEstimation the amount of currency outflow arising from publishing articles in foreign journals and providing strategies for resistance economy
Background and aim: The macro-policies of resistance economy emphasize reducing foreign dependencies and preventing unnecessary currency outflows. The purpose of this study was to calculate the amount of currency outflow resulting from the publication of articles in foreign journals and provide the necessary strategies in the field of research. Materials and methods: The present study was a mix...
متن کاملCortical overgrowth in fetuses with isolated ventriculomegaly.
Mild cerebral ventricular enlargement is associated with schizophrenia, autism, epilepsy, and attention-deficit/hyperactivity disorder. Fetal ventriculomegaly is the most common central nervous system (CNS) abnormality affecting 1% of fetuses and is associated with cognitive, language, and behavioral impairments in childhood. Neurodevelopmental outcome is partially predictable by the 2-dimensio...
متن کاملCongenital heart diseases with right-to-left shunts.
Tetralogy of Fallot comprises a constellation of cardiac findings that share the following common anatomic abnormalities (Fig. 1): a large malaligned ventricular septal defect (VSD), overriding of the aorta over the septal defect, right ventricular outflow obstruction, and right ventricular hypertrophy. The anatomic spectrum of TOF is diverse and includes other variants such as pulmonary stenos...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of neurology, neurosurgery, and psychiatry
دوره 53 10 شماره
صفحات -
تاریخ انتشار 1990