Intra-operative intravascular effect of the difference in colloid solutions during acute normovolemic hemodilution.

Background: Acute normovolemic hemodilution (ANH) is used to reduce the risk of peri-operative allogeneic blood transfusion. Although crystalloid and/or colloid solutions have been used for volume replacement during ANH, no studies have examined the differences among solutions on the volume status, electrolytes, acid-base balance, and hemodynamic status during surgery with ANH.

Methods: We retrospectively compared the effect of Ringer's lactate with 3% dextran-40 (Saviosol®, DEX group) and 6% hydroxyethyl starch 130/0.

Can tissue dielectric constant measurements assess circulating blood volume changes in patients undergoing haemodialysis?

Background: The tissue dielectric constant (TDC) method uses an open-ended coaxial probe to achieve non-invasive measurement of water content in skin. The aim of our study was to test the hypothesis that the changes in circulating blood volume would be associated with the changes in TDC values in patients undergoing haemodialysis.

Methods: In this prospective descriptive study, TDC measurements were performed for three parts of the body (the face, shin and hand) before and after patients underwent haemodialysis (N = 83).

Impact of acute changes in perfusion index and blood pressure on the accuracy of non-invasive continuous hemoglobin concentration measurements during induction of anesthesia.

Purpose: Several factors affect the accuracy of non-invasive continuous hemoglobin concentration (SpHb) measurements. We had previously shown an increase in the perfusion index (PI) following induction of anesthesia which was associated with an increase in the difference between SpHb and total hemoglobin (tHb) (SpHb-tHb). We hypothesized that blunting the increase in PI by maintaining blood pressure during induction of anesthesia would improve the agreement between SpHb and tHb measurements.

[Airway Management for Partial Lung Lobectomy in a Patient with Subglottic Stenosis: A Case Report].

We report a case of sub-glottis stenosis encountered during anesthetic induction. A 79 year-old male was scheduled for a right partial lung lobectomy with video assisted thoracic surgery. Significant history includes percutaneous coronary intervention and pacemaker insertion for myocardial infarction, tuberculosis, trache- ostomy and radiation therapy for vocal cord cancer.