Hyperviscosity Syndromes

Neonatal hyperviscosity syndrome.

THE HYPERVISCOSITY SYNDROME is a symptom complex associated with decreased blood fluidity, which is generally associated with an increase in erythrocyte mass. The mean cord blood hematocrit is 45±5% and 50 +5% in preterm and term infants respectively if they are born at sea level. Values are somewhat higher in infants born in locations at higher altitudes. A central venous hematocrit of 65% or ...

The hyperviscosity syndrome.

common complication in IgG myeloma. Its occurrence has been ascribed to the presence in the serum of high molecular weight polymers of the IgG proteins. Three patients with IgG myeloma and the clinical hyperviscosity syndrome were investigated, none of whom had IgG polymers in the serum by analytical ultracentrifugation. Relative serum viscosity in these patients ranged from 10 to 17.4 (normal ...

A pulmonary mass and hyperviscosity.

A 69 year old woman was referred to hospital because of a persistent dry cough and dyspnoea. She has never smoked and was taking captopril for hypertension and thyroxine for hypothyroidism. At age 20 she developed pulmonary tuberculosis which was treated with a left artificial pneumothorax. A few years later during the course of investigation into infertility she was found to have tuberculous e...

Hyperviscosity, Galerkin truncation, and bottlenecks in turbulence.

It is shown that the use of a high power alpha of the Laplacian in the dissipative term of hydrodynamical equations leads asymptotically to truncated inviscid conservative dynamics with a finite range of spatial Fourier modes. Those at large wave numbers thermalize, whereas modes at small wave numbers obey ordinary viscous dynamics [C. Cichowlas et al., Phys. Rev. Lett. 95, 264502 (2005)10.1103...

Cigarette smoking in pregnancy and fetal hyperviscosity.