SUMMARY
As one of the modalities available for perioperative blood conservation, ANH presents a dilemma to the clinician for various reasons. First, the efficacy of ANH as a technique for blood conservation has been challenged by some investigators. Others suggest that ANH is only effective with ranges of blood collection and severity of anemia that make most anesthesiologists uncomfortable14. In addition, performance of ANH requires experienced clinicians, and additional work and vigilance by the anesthesiology staff. The combination of skepticism, increased work, and training requirements without the benefit of reimbursement make this simple and valuable procedure one of the most underutilized forms of intraoperative blood conservation techniques. The gain in popularity of all blood conservation techniques in the last decade has resulted in the reexamination of the efficacy of ANH and the need to increase utilization of this technique. Although ANH has been a known modality for quite some time5 6, it has never gained full acceptance among anesthesiologists, surgeons, and others involved in blood conservation. Table 1 raises a number of issues