منابع مشابه
Superior mesenteric artery blood flow velocity in necrotising enterocolitis.
Doppler measurements of blood flow velocity were obtained from the superior mesenteric artery (SMA), coeliac axis, and anterior cerebral artery (ACA) of 19 infants with suspected necrotising enterocolitis, which was classified as confirmed (n = 9) or unconfirmed (n = 8). Infants with confirmed disease were compared with controls who were either enterally fed or who were receiving intravenous fl...
متن کاملSuperior mesenteric artery blood flow in systemic sclerosis patients.
OBJECTIVE Intestinal involvement is frequently observed in systemic sclerosis (SSc) and is associated with malnutrition and a decreased survival rate. Vascular lesions are claimed to underlie and precede these changes. The aim of this study was to establish whether a reduced mesenteric blood flow was present in SSc patients with no signs or symptoms of small bowel involvement. METHODS Superio...
متن کاملGlucagon and canine mesenteric hemodynamics: effects on superior mesenteric arteriovenous and nutrient capillary blood flow.
The objective of this investigation was to define the splanchnic hemodynamic effects of parenterally administered glucagon in a canine model. Measurements in six dogs at baseline and at 10, 20, and 30 min during constant intravenous infusion of glucagon at 1 pg/kglmin included: Cardiac output (CO), mean arterial pressure, total peripheral vascular resistance (TPR), superior mesenteric artery fl...
متن کاملDoppler analysis of superior mesenteric artery blood flow in preterm infants.
Transcutaneous Doppler ultrasound measurements were made of the superior mesenteric artery of 22 preterm infants (mean birth weight 600-2580 g) to investigate the response of intestinal blood flow to feeding. Analysis of the data in relation to milk intake showed a significant change in peak velocity and mean velocity; peak velocity before feeding increased from a mean baseline value of 34 cm/s...
متن کاملTranscutaneous Doppler ultrasound measurement of superior mesenteric artery blood flow in man.
A duplex scanner which consists of a real time two dimensional scanner and a pulsed Doppler flowmeter was used to measure superior mesenteric blood flow in 70 healthy subjects. By processing the Doppler shift signals, the instantaneous average Doppler shift frequency and then the instantaneous average velocity of the flow rate were calculated. Both diameter of the vessel and angle between vesse...
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ژورنال
عنوان ژورنال: Gut
سال: 1992
ISSN: 0017-5749
DOI: 10.1136/gut.33.11.1583-c