Whole-Body Spectroscopy (BCM) in the Assessment of Normovolemia in Hemodialysis Patients

Author(s):  
Volker Wizemann ◽  
Christiane Rode ◽  
Peter Wabel
2002 ◽  
Vol 61 (6) ◽  
pp. 2250-2258 ◽  
Author(s):  
Paul W. Chamney ◽  
Matthias Krämer ◽  
Christiane Rode ◽  
Wolfgang Kleinekofort ◽  
Volker Wizemann

2006 ◽  
Vol 100 (2) ◽  
pp. 717-724 ◽  
Author(s):  
F. Zhu ◽  
M. K. Kuhlmann ◽  
G. A. Kaysen ◽  
S. Sarkar ◽  
C. Kaitwatcharachai ◽  
...  

Discrepancies in body fluid estimates between segmental bioimpedance spectroscopy (SBIS) and gold-standard methods may be due to the use of a uniform value of tissue resistivity to compute extracellular fluid volume (ECV) and intracellular fluid volume (ICV). Discrepancies may also arise from the exclusion of fluid volumes of hands, feet, neck, and head from measurements due to electrode positions. The aim of this study was to define the specific resistivity of various body segments and to use those values for computation of ECV and ICV along with a correction for unmeasured fluid volumes. Twenty-nine maintenance hemodialysis patients (16 men) underwent body composition analysis including whole body MRI, whole body potassium (40K) content, deuterium, and sodium bromide dilution, and segmental and wrist-to-ankle bioimpedance spectroscopy, all performed on the same day before a hemodialysis. Segment-specific resistivity was determined from segmental fat-free mass (FFM; by MRI), hydration status of FFM (by deuterium and sodium bromide), tissue resistance (by SBIS), and segment length. Segmental FFM was higher and extracellular hydration of FFM was lower in men compared with women. Segment-specific resistivity values for arm, trunk, and leg all differed from the uniform resistivity used in traditional SBIS algorithms. Estimates for whole body ECV, ICV, and total body water from SBIS using segmental instead of uniform resistivity values and after adjustment for unmeasured fluid volumes of the body did not differ significantly from gold-standard measures. The uniform tissue resistivity values used in traditional SBIS algorithms result in underestimation of ECV, ICV, and total body water. Use of segmental resistivity values combined with adjustment for body volumes that are neglected by traditional SBIS technique significantly improves estimations of body fluid volume in hemodialysis patients.


2007 ◽  
Vol 40 (5) ◽  
pp. 409-415
Author(s):  
Hideyo Ninomiya ◽  
Michihiro Takada ◽  
Nukio Toyoda ◽  
Yoshimasa Suetomo ◽  
Ryuichiro Mukai

2009 ◽  
Vol 127 (2) ◽  
pp. 71-77 ◽  
Author(s):  
Paulo Gustavo Sampaio Lacativa ◽  
Felipe Malzac Franco ◽  
José Raimundo Pimentel ◽  
Pedro José de Mattos Patrício Filho ◽  
Manoel Domingos da Cruz Gonçalves ◽  
...  

CONTEXT AND OBJECTIVE: Patients with end stage renal disease (ESRD) and secondary hyperparathyroidism (HPT2) are prone to develop heterotopic calcifications and severe bone disease. Determination of the sites most commonly affected would decrease costs and patients' exposure to X-ray radiation. The aim here was to determine which skeletal sites produce most radiographic findings, in order to evaluate hemodialysis patients with HPT2, and to describe the most prevalent radiographic findings. DESIGN AND SETTING: This study was cross-sectional, conducted in one center, the Hospital Universitário Clementino Fraga Filho (HUCFF), in Rio de Janeiro, Brazil. METHODS: Whole-body radiographs were obtained from 73 chronic hemodialysis patients with indications for parathyroidectomy due to severe HPT2. The regions studied were the skull, hands, wrists, clavicles, thoracic and lumbar column, long bones and pelvis. All the radiographs were analyzed by the same two radiologists, with great experience in bone disease interpretation. RESULTS: The most common abnormality was subperiosteal bone resorption, mostly at the phalanges and distal clavicles (94% of patients, each). "Rugger jersey spine" sign was found in 27%. Pathological fractures and deformities were seen in 27% and 33%, respectively. Calcifications were presented in 80%, mostly at the forearm fistula (42%), abdominal aorta and lower limb arteries (35% each). Brown tumors were present in 37% of the patients, mostly on the face and lower limbs (9% each). CONCLUSION: The greatest prevalence of bone findings were found on radiographs of the hands, wrists, lateral view of the thoracic and lumbar columns and femurs. The most prevalent findings were bone resorption and ectopic calcifications.


2003 ◽  
Vol 284 (5) ◽  
pp. E954-E965 ◽  
Author(s):  
Jorden M. Veeneman ◽  
Hermi A. Kingma ◽  
Theo S. Boer ◽  
Frans Stellaard ◽  
Paul E. De Jong ◽  
...  

Protein energy malnutrition is present in 18 to 56% of hemodialysis patients. Because hemodialysis has been regarded as a catabolic event, we studied whether consumption of a protein- and energy-enriched meal improves the whole body protein balance during dialysis in chronic hemodialysis (CHD) patients. Patients were studied on a single day between dialysis (HD− protocol) in the morning while fasting and in the afternoon while consuming six small test meals. Patients were also studied during two separate dialysis sessions (HD+ protocol). Patients were fasted during one and consumed the meals during the other. Whole body protein metabolism was studied by primed constant infusion ofl-[1-13C]valine. During HD−, feeding changed the negative whole body protein balance observed during fasting to a positive protein balance. Dialysis deepened the negative balance during fasting, whereas feeding during dialysis induced a positive balance comparable to the HD− protocol while feeding. Plasma valine concentrations during the studies were correlated with whole body protein synthesis and inversely correlated with whole body protein breakdown. We conclude that the consumption of a protein- and energy-enriched meal by CHD patients while dialyzing can strongly improve whole body protein balance, probably because of the increased amino acid concentrations in blood.


1987 ◽  
Vol 46 (5) ◽  
pp. 778-783 ◽  
Author(s):  
C H Berkelhammer ◽  
J P Baker ◽  
L A Leiter ◽  
P R Uldall ◽  
R Whittall ◽  
...  

1990 ◽  
Vol 7 (3) ◽  
pp. 163-169 ◽  
Author(s):  
Olle Ljungqvist ◽  
Gunilla Hedenborg ◽  
Stefan H Jacobson ◽  
Lars-Eric Lins ◽  
Kickan Samuelson ◽  
...  

2014 ◽  
Vol 29 (8) ◽  
pp. 1417-1423 ◽  
Author(s):  
Gia Oh ◽  
Cynthia Wong ◽  
Brandy Begin ◽  
Kari Salsbery ◽  
Scott Sutherland ◽  
...  

2000 ◽  
Vol 20 (4) ◽  
pp. 278-282 ◽  
Author(s):  
Mariko Eguchi ◽  
Kazufumi Tsuchihashi ◽  
Hideki Takizawa ◽  
Narifumi Nakahara ◽  
Makoto Hagiwara ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document