BACKGROUND Considering the relationship of low and high levels of hemoglobin and hematocrit with some pregnancy complications, we decided to study their relationship with pregnancy outcome. This study also aimed to investigate the changes in hemoglobin and hematocrit values during the second and first half of pregnancy and its relationship with pregnancy outcome. MATERIALS AND METHODS In a pr...

An electromagnetic flowmeter system that has an accuracy of 0.1% and is insensitive to fluid conductivity was used to study the sensitivity to steady flow of a 6-mm cannular transducer. All measurements were carried out at 37°C. Sensitivity decreased with increasing hematocrit value whether flow was laminar or otherwise. With laminar flow and a given hematocrit value, the sensitivity also decre...

OBJECTIVE Hypotension resulting from hemodilution on cardiopulmonary bypass is often treated by pressor (eg, phenylephrine) infusion. The effect of phenylephrine on cerebral blood flow (CBF) in this setting is not clear. It was hypothesized that phenylephrine might decrease CBF. MEASUREMENTS AND MAIN RESULTS Six different radioactively labeled microspheres (15 microm) were used to measure CBF...

aims: anemia occurs for different reasons. however the iron deficiency anemia (ida) is one of the most prevalent causes of anemia in all human communities. the goal of the present study was to assess the effect of serum ferritin deficiency on anemia in medical students. materials & methods: this cross-sectional study was conducted on students of kashan university of medical sciences in all educ...

recombinant human erythropoietin (rh-epo) is known to accelerate erythropoiesis in preterm infants. the purpose of this study was to compare the effectiveness of early treatment with two doses of rh-epo (high vs. low dose) in the management of anemia of prematurity. twenty preterm infants with hematocrit (hct) < 30% when infant’s age was between 2 to 3 weeks after birth or hct <25% when infant’...

IT SEEMS APPROPRIATE to attempt to improve ce-rebral blood flow (CBF) in stroke. By so doing, oxygen delivery to the brain will increase and removal of the waste products of metabolism will be more efficient. Better flow should also increase the fragmentation and dispersal of existing thrombi and inhibit extension and spread of intravascular thrombosis. One approach to increase CBF is to improv...