Abstract:
OBJECTIVE:Plots of blood volume measurements over time (profiles) may identify euvolemia during fluid removal for acute heart failure. We assessed agreement between two noninvasive measurements of blood volume profiles during mechanical fluid removal, which exemplifies the interstitial fluid shifts that occur during diuretic-induced fluid removal. APPROACH:During hemodialysis we compared change in maximum diameter of the inferior vena cava by ultrasound ([Formula: see text]) to change in relative blood volume derived from capillary hemoglobin concentration from finger-clip spectrophotometry (RBVSpHb). We grouped profiles of these measurements into three distinct shapes using an unbiased, data-driven modeling technique. METHODS:Fifty patients who were not in acute heart failure underwent a mean of five paired measurements while an average of 1.3 liters of fluid was removed over 2 h during single hemodialysis sessions. [Formula: see text] changed -1.0 mm (95% CI -1.9 to -0.2 mm) and the RBVSpHb changed -1.1% (95% CI -2.7 to +0.5%), but these changes were not correlated (r -0.04, 95% CI -0.32 to +0.24). Nor was there agreement between categorization of profiles of change in the two measurements (kappa -0.1, 95% CI -0.3 to +0.1). SIGNIFICANCE:[Formula: see text] and RBVSpHb estimates of blood volume do not agree during mechanical fluid removal, likely because regional changes in blood flow and pressure modify IVC dimensions as well as changes total blood volume.
journal_name
Physiol Measjournal_title
Physiological measurementauthors
Lucas BP,D'Addio A,Block C,Manning H,Remillard B,Leiter JCdoi
10.1088/1361-6579/ab21afsubject
Has Abstractpub_date
2019-07-01 00:00:00pages
065003issue
6eissn
0967-3334issn
1361-6579journal_volume
40pub_type
杂志文章abstract::Urinary catheters (drainage tubes) are in widespread use. The most common type of long-term catheter is the Foley, which is made from natural or synthetic rubber. Foley catheters are passed into the bladder via the urethra or the suprapubic puncture channel (through the abdominal wall). A simulator for the abdominal w...
journal_title:Physiological measurement
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journal_title:Physiological measurement
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journal_title:Physiological measurement
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journal_title:Physiological measurement
pub_type: 杂志文章
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journal_title:Physiological measurement
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journal_title:Physiological measurement
pub_type: 杂志文章
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journal_title:Physiological measurement
pub_type: 杂志文章
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更新日期:2014-06-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
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journal_title:Physiological measurement
pub_type: 杂志文章
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journal_title:Physiological measurement
pub_type: 杂志文章
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/0967-3334/32/2/001
更新日期:2011-02-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/0967-3334/35/11/2319
更新日期:2014-11-01 00:00:00
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pub_type: 临床试验,杂志文章
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journal_title:Physiological measurement
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更新日期:1993-05-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
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更新日期:2016-09-01 00:00:00
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journal_title:Physiological measurement
pub_type: 临床试验,杂志文章
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更新日期:2008-06-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/0967-3334/35/12/2529
更新日期:2014-12-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
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更新日期:2002-05-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/1361-6579/ab9376
更新日期:2020-07-02 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
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更新日期:2000-05-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/1361-6579/aac9a9
更新日期:2018-06-27 00:00:00