www.aana.com/aanajournalonline The present study was undertaken with the primary aim to analyze a large number of surgically treated patients with juvenile nasopharyngeal angiofibroma (JNA) in respect to preoperative embolization, different surgical procedures, and JNA stages. Ages of the patients ranged between 8 and 31 years. Mean blood loss was 1,240 mL (range, 50-6,000 mL). Preoperative emb...

In a previous paper (Walker and Turnbull, 1953) we have demonstrated the haemoglobm levels and red cell count in the cord blood of the human foetus throughout pregnancy. From the 10th week to the 24th week the red cell count doubles (from 1,500,000 to 3,000,000), but the haemoglobin rises only from 9 to 15 g. After the 24th week, the red cell count continues to rise till at 40 weeks, in the wel...

The paper reports electrical properties of human blood and plasma of belonging to different physiological and environmental conditions. Dielectric parameters such as dielectric constant, dielectric loss and electrical conductivity of human blood and plasma of groups A, B, AB and O are measured at the frequency of 1kHz using digital LCZ meter. It is found that the values of dielectric constant, ...

OBJECTIVE We hypothesized that the number of evacuated casualties from a combat-related multiple casualty event provides an initial baseline estimate of the number of blood products required for the event. METHODS A retrospective review of combat support hospitals' experiences in Operation Iraqi Freedom was performed, (from December 2003 to December 2004). Identified multiple casualty events ...

Main Outcome Measures: Number of packed red blood cell (PRBC) units transfused per patient. Results: A total of 332 U of PRBCs were transfused. Half of the PRBC units were administered as massive transfusions to 4.7% of the patients. The number of PRBC units transfused per patient index (PPI) was related to incident size (mean [SD], 0.70[1.60] to 1.50 [1.60]). The most frequent major blood grou...

hazards of blood transfusion. Physiologic impairment related to inadequate oxygen transport, secondary to decreased circulating red blood cells, seems to be the current major indicator for transfusion. Unfortunately, there is still a philosophy that, when transfusion is indicated, a minimum of two units of packed red cells should be given to an average size adult. If we really believe that the ...

BACKGROUND Pharyngocutaneous fistula (PCF) is a problematic complication following total laryngectomy. Disagreement remains regarding predisposing factors. This study examines perioperative factors predicting PCF following total laryngectomy using a large multicenter data registry. METHODS Retrospective cohort analysis was performed using patients undergoing total laryngectomy in the ACS-NSQI...

I T HAS been demonstrated by Fahraeus’4 that normal red blood cells have a tendency to bcccme spheroidal in shape after standing in vitro at body ternperature. G#{228}nsslen,5 Haden6 and Castle and Daland7 have shown that spheroidal red cells are more susceptible to osmotic hemolysis than are normal corpuscles. Haden found that normal red cells when suspended in graded hypotonic salt solutions ...

Adhesion of parasitized red blood cells (PRBCs) to microvascular endothelial cells (ECs) is a distinctive feature of Plasmodium falciparum malaria and is a central event in the development of life-threatening complications such as cerebral malaria. PRBCs adhere to several EC-expressed molecules in vitro, but the relative importance of these interactions in vivo remains unclear. Chondroitin sulf...