Effect of a Millipore filter on complications of intravenous infusions: a prospective clinical trial.

The Millipore filter unit has been advocated as a means of reducing the chance of bacteria entering the circulation during intravenous infusion. In a prospective study no significant reduction was obtained in the incidence of thrombophlebitis or in the bacterial contamination of cannulae. The unit was inconvenient to use and in-vitro and in-vivo studies showed reduced flow rates and frequent episodes of filter blockage.

The effects of environmental temperature on the properties of myofibrillar adenosine triphosphatase from various species of fish.

1. Myofibrillar adenosine triphosphatase (ATPase) activities were measured for white myotomal muscle of 19 species of fish. 2.

Raised intracranial pressure and cerebral blood flow. 2. Supratentorial and infratentorial mass lesions in primates.

Changes in cerebral blood flow with increasing intracranial pressure were studied in anaesthetized baboons during expansion of a subdural balloon in one of two different sites. With an infratentorial balloon, cerebral blood flow bore no clear relation to intracranial pressure, but was linearly related to cerebral perfusion pressure. Apart from an initial change in some animals, cerebrovascular resistance remained constant with increasing intracranial pressure, and autoregulation appeared to be lost from the outset.