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PubMedDate not supplied

Blood reflux into cartridges for dental anesthesia: detection in residual solution.

The study examines blood reflux into cartridges under infiltration anesthesia. When imitation examination was carried out using Pontamine blue dye solution in 7 kinds of syringes using cartridges, dye reflux was observed in all of them. Dye reflux was observed in all but 1 of 4 kinds of cartridges on the market. The amounts of protein in residual anesthetic solution of cartridges after infiltration anesthesia were quantitatively measured by a dye binding method. Human hemoglobin was also measured by enzyme immunoassay (EIA). The detection rates of protein and human hemoglobin were 26.2% (85/324) and 24.2% (24/99), respectively. Study results show that blood reflux cannot be avoided in the cartridge system so reuse of residual anesthetic solution from cartridges should be prohibited as quickly as possible to avert risk of cross-infection of HB and AIDS virus.

Anesthesia, Dental↗
PubMedDate not supplied

Analysis of preoperative laboratory values prior to outpatient dental anesthesia.

A retrospective study of 672 ASA Class I patients undergoing outpatient general anesthesia for oral surgical procedures was performed to evaluate the significance and incidence of abnormal preoperative serum glucose and hematocrit levels. There was an 11% overall incidence of "abnormal" values. Specifically, 6% of the patients had serum glucose levels below 60 g/dl and 5% had hematocritis less than 35 mg/dl. These values are not outside the realm of normal and had no impact on the preoperative, perioperative, or postoperative anesthetic management. The results of this study and review of the suggest that routine laboratory analysis is of little value in the anesthetic management of ASA Class I patients in which a thorough history and physical examination is obtained.

Adult↗