Acute blood pressure response to surfactant administration.

Blood pressure response in rats to intracisternal administration of choline.

Central administration of acetylcholine or nicotine to rats induces changes in blood pressure and heart rate via central chol inoceptor activation (1, 2). Physostigmine a cholinesterase inhibitor also modifies blood pressure and heart rate (3, 4). Thus, central cholinergic mechanisms may be physio logically involved in the central control of cardiovascular function. In the present experiments, ...

Blood pressure response to hemodialysis.

Blood pressure response to hemodialysis was investigated in 15 patients with end-stage kidney disease; mean arterial pressure was unchanged in five (Group 1) and reduced 10 mm Hg in 10 (Group 2). The two groups did not differ significantly with regard to either biochemical values or hemodynamic indices before dialysis, and both sustained comparable reduction in body weight, total blood volume, ...

Blood pressure response to treatment.

Novel Approaches to Surfactant Administration

Surfactant replacement therapy has been the mainstay of treatment for preterm infants with respiratory distress syndrome for more than twenty years. For the most part, surfactant is administered intratracheally, followed by mechanical ventilation. In recent years, the growing interest in noninvasive ventilation has led to novel approaches of administration. This paper will review these techniqu...

Retinal blood flow autoregulation in response to an acute increase in blood pressure.

The response of the retinal circulation to an acute elevation in systemic blood pressure was studied in three healthy normotensive volunteers using the noninvasive laser Doppler velocimetry (LDV) technique combined with retinal vessel size measurements. Isometric exercise was employed to induce the acute rise in arterial pressure. There was no detectable change in retinal blood flow until the m...