[Hypovolemic shock caused by increased capillary permeability associated with monoclonal gammopathy. New case and review of the literature].

The authors report another case of hypovolaemic shock due to increased capillary permeability and review previous reports in the medical literature. It is a rare condition with all patients presenting hypovolaemic shock of sudden onset with varying degrees of hypoproteinaemia and increased haematocrit. A monoclonal globulin peak is usually observed on serum electrophoresis during and between episodes of shock. The pathological role of this globulin in the increased capillary permeability has not been established.