BACKGROUND Hemoconcentration has been proposed as surrogate for changes in volume status among patients hospitalized with acute heart failure (AHF) and is associated with a favorable outcome. However, there is a dearth of research assessing the clinical outcomes of hospitalized patients with hemoconcentration, hemodilution and unchanged volume status. METHODS We enrolled 510 consecutive patie...

Acute psychological stress is known to alter the distribution of circulating lymphocyte subsets and also to cause a reduction of plasma volume. Data were reanalyzed from 4 previously reported studies (E. A. Bachen et al., 1995; T. B. Herbert et al., 1994; A. L. Marsland, S. B. Manuck, T. V. Fazzari, C. J. Stewart, & B. S. Rabin, 1995; A. L. Marsland, S. B. Manuck, P. Wood, et al., 1995) to dete...

OBJECTIVE For the examination of psychological stress effects on coagulation, the Dill and Costill correction (DCC) for hemoconcentration effects has been used to adjust for stress-induced plasma volume changes. Although the correction is appropriate for adjusting concentrations of various large blood constituents, it may be inappropriate for time-dependent or functional coagulation assays. Two...

is characterized by hemoconcentration (hematocrit increased ú20%), thrombocytopenia (platelet count, õ100,000/mm), Figure 1. Spleen of a 23-year-old female who had hemorrhagic vascular collapse, abdominal pain, and hemorrhagic manifestadengue with spontaneous splenic rupture. The spleen weighed 100 g tions. Other manifestations of the disease include circulatory and measured 10.51 7.51 4.5 cm. ...

Urban stormwater is responsible for recurrent mortality events of coho salmon (Oncorhynchus kisutch) documented in the US Pacific Northwest. Currently, toxic mode action unknown; however, often associated with large increases hematocrit (Hct). We found that hemoconcentration and red cell swelling may offer a partial explanation increased Hct, based on total hemoglobin reduced mean concentration...

Hemoconcentration is observed in bed rest studies, descent from altitude, and exposure to microgravity. Hemoconcentration triggers erythrocyte losses to subsequently normalize erythrocyte concentration. The mechanisms of erythrocyte loss may involve enhanced hemolysis, but has never been measured directly in bed rest studies. Steady-state hemolysis was evaluated by measuring two heme degradatio...

CONTEXT In a prior report involving patients with hemoconcentration at admission, those with necrotizing pancreatitis presented significantly earlier than those with interstitial disease suggesting that duration of abdominal pain prior to presentation may have prognostic significance in acute pancreatitis. OBJECTIVES The aim of the present study was to determine whether the duration of abdomi...