Abstract:
:Dialysis is measured as Kt/V, which scales the dose (Kt) to body water content (V). Scaling dialysis dose to body surface area (S(dub)) has been advocated, but the implications of such rescaling have not been examined. We developed a method of rescaling measured Kt/V to S(dub) and studied the effect of such alternative scaling on the minimum adequacy values that might then be applied in male and female patients of varying body size. We examined anthropometric estimates of V and S (Watson vs. Dubois estimates) in 1765 patients enrolled in the HEMO study after excluding patients with amputations. An S-normalized target stdKt/V was defined, and an adequacy ratio (R) was computed for each patient as R = D/N where D = delivered stdKt/V (calculated using the Gotch-Leypoldt equation for stdKt/V) and N = the S-normalized minimum target value. In the HEMO data set, we determined the extent to which baseline (prerandomization) stdKt/V values would have exceeded such an S-based minimum target stdKt/V. The median V(wat):S(dub) ratios were significantly higher in men (21.34) than in women (18.50). The average of these (20) was used to normalize the current suggested minimally adequate value (stdKt/V > or = 2.0/week) to the S-normalized target value (stdKt/S > or = 40 L/M(2)), assuming that average modeled V = average anthropometric V. To achieve this S-normalized target, the required single-pool (sp) Kt/V was always higher in women than in men at any level of body size. For small patients (V(wat) = 25L), required stdKt/V values were 2.05 and 2.21/week for men and women, respectively, corresponding to spKt/V values of 1.31 and 1.52/session. On the other hand, large (V(wat) = 50L) male patients would need spKt/V values of only 1.0/session. Prerandomization baseline dialysis sessions in the HEMO study were found to meet such a new S-based standard in almost all (766/773) men and in 885/992 women. An analysis of scaling dose to anthropometrically estimated liver size (L) showed similar gender ratios for V(wat):L and V(wat):S(dub), providing a potential physiologic explanation underpinning S-based scaling. S-based scaling of the dialysis dose would require considerably higher doses in small patients and in women, and would allow somewhat lower doses in larger male patients. Current dialysis practice would largely meet such an S-based adequacy standard if the dose were normalized to a V(wat):S(dub) ratio of 20.
journal_name
Semin Dialjournal_title
Seminars in dialysisauthors
Daugirdas JT,Depner TA,Greene T,Kuhlmann MK,Levin NW,Chertow GM,Rocco MVdoi
10.1111/j.1525-139X.2008.00482.xsubject
Has Abstractpub_date
2008-09-01 00:00:00pages
415-21issue
5eissn
0894-0959issn
1525-139Xpii
SDI482journal_volume
21pub_type
杂志文章abstract::Measurements of the concentration of parathyroid hormone (PTH) in serum or plasma are used widely for the initial diagnostic assessment of patients with renal bone disease, to monitor disease progression, and to gauge responses to treatment. Several analytical methods are used to measure plasma PTH levels, and a varie...
journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
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更新日期:2008-01-01 00:00:00
abstract::Hemodialysis patient outcomes are often suboptimal, with one-sixth of patients receiving an inadequate dialysis dose, one-fourth using catheters for vascular access, and more than one-half being malnourished. This review describes a four-step approach for improving dialysis patient outcomes. First, select an outcome t...
journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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更新日期:2010-03-01 00:00:00
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journal_title:Seminars in dialysis
pub_type: 社论,评审
doi:10.1111/sdi.12345
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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更新日期:2006-03-01 00:00:00
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journal_title:Seminars in dialysis
pub_type: 杂志文章
doi:10.1111/j.1525-139X.2011.00844.x
更新日期:2011-01-01 00:00:00
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journal_title:Seminars in dialysis
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doi:10.1111/sdi.12744
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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abstract::Alternate night nocturnal hemodialysis (HD) is a popular modality in Australia. This modality grew out of a desire to increase the availability and accessibility of nocturnal HD without incurring excessive costs. It has proven popular with staff, patients, and administrators. There are limited data to support the bene...
journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
doi:10.1111/sdi.12227
更新日期:2014-07-01 00:00:00
abstract::Bacteremia is a common infectious complication in hemodialysis patients. Metastatic sites of infection including infective endocarditis, vertebral osteomyelitis, spinal epidural abscess, and septic arthritis occur relatively frequently. These complications are associated with increased morbidity and mortality in hemod...
journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
doi:10.1111/sdi.12031
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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journal_title:Seminars in dialysis
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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pub_type: 临床试验,杂志文章
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
doi:10.1111/sdi.12599
更新日期:2017-07-01 00:00:00
abstract::Peritoneal dialysis (PD) is a markedly underutilized modality for permanent renal replacement therapy in the United States owing to a low rate of patient referral and high rate of patient dropout or transfer to hemodialysis. One cause for patient loss from PD is problematic PD catheters that often are removed rather t...
journal_title:Seminars in dialysis
pub_type: 杂志文章
doi:10.1111/j.1525-139X.2006.00148.x
更新日期:2006-03-01 00:00:00
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journal_title:Seminars in dialysis
pub_type: 社论,评审
doi:10.1046/j.1525-139x.2003.16084_1.x
更新日期:2003-09-01 00:00:00
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journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
abstract::Withholding and withdrawal of dialysis has been a reality since dialysis was invented. Only in the past 20 years has it been formally studied, and we still have a great deal to learn. The nephrology community has slowly come to accept that, for some of our patients, not having dialysis is a better option than continui...
journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
doi:10.1111/j.1525-139X.2007.00273.x
更新日期:2007-05-01 00:00:00
abstract::The role of peritoneal dialysis (PD) as a modality in renal replacement therapy has been well established. In this article we review various aspects in the evolution of PD, with special emphasis on adequacy. Until the late 1950s PD was still considered as a last resort in the treatment of terminal uremia. The introduc...
journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
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更新日期:2001-07-01 00:00:00
abstract::Increasing the use of arteriovenous fistulae in dialysis patients requires a specific strategy. In order to properly select patients for an arteriovenous fistula (AVF), it is essential that the nephrologist become knowledgeable about the subject and that an organized approach be followed. Both the arterial and venous ...
journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
doi:10.1046/j.1525-139x.2000.00079.x
更新日期:2000-09-01 00:00:00
abstract::Arteriovenous fistula (AVF) failure is mainly due to venous stenosis characterized by significant amount of intima-media thickening (IMT), probably in the presence of negative (inward) remodeling. Our hypothesis is that the longitudinal changes in wall shear stress (WSS) within different configurations of AVF can infl...
journal_title:Seminars in dialysis
pub_type: 杂志文章
doi:10.1111/sdi.12045
更新日期:2013-07-01 00:00:00
abstract::The End-Stage Renal Disease (ESRD) program now serves approximately 675,000 individuals in the United States at a cost of $26.1 billion to the Medicare system. Given the size of this population, healthcare providers from all disciplines will deliver care to patients on dialysis. Mortality remains high among patients o...
journal_title:Seminars in dialysis
pub_type: 杂志文章,评审
doi:10.1111/sdi.12671
更新日期:2018-03-01 00:00:00