Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1991-11-27
pubmed:abstractText
Blood velocity waveforms in peripheral arteries vary such that decreasing vascular resistance results in a relative increase in diastolic velocity at steady state. We measured blood velocity in renal arteries of 20 children (age: 119 months +/- 37 months; weight: 38 kg +/- 15 kg) to establish normal values, and to explore the relationship between these waveforms and central hemodynamics. Using image-directed pulsed Doppler echocardiography, M-mode measurements and cardiac index were recorded. Renal hila were visualized via the flank for Doppler sampling. Peak systolic velocity (A) and minimal diastolic velocity (B) were determined. The results (mean +/- SD) were as follows: Renal artery A/B = 2.9 +/- 0.74 (range 1.9 to 5.1). Characteristic waveforms were identical bilaterally and had continuous diastolic forward flow: A/B was independent of central hemodynamics within the resting normal range, varying inversely with age and size.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0091-2751
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
387-92
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Doppler waveforms in the renal arteries of normal children.
pubmed:affiliation
Division of Pediatric Cardiology, New York University Medical Center, New York 10016.
pubmed:publicationType
Journal Article