Abstract
Dendelion Dental Office has been established for the aged bedridden people living at home in Katsushika-ward. For a period of one year and 10 months, 52 patients were subjected to tooth extraction in the office under the general control by dental anesthesiologist. Investigation was performed on the changes in blood pressure, pulse rate, and percutaneous oxygen saturation level during tooth extraction of these subjects.
There were 52 patients, 28 males and 24 females, with an average age of 76. 9 years. Their diseases resulting from laying alone and complications were overwhelmingly cerebrovascular disorders and hypertension respectively.
The numbers of tooth extracted at one treatment were 1 in 50% of the subjects and 2 in 25% of the subjects. The total numbers of teeth extracted were 1 in 33% of subjects and 4 in 16% of subjects. The local anesthetic used for the majority of subjects was 2% lidocaine supplemented with 80, 000-fold diluted epinephrin.
The average treatment time was about 19 min and no subject was treated for more than 30 min. Values measured 5 min after transferring to the dental treatment chair were used as the controls. When the differerential rates of systolic and diastolic pressures at extraction were examined, both showed increasing tendencies at injection of a local anesthesia, and at extraction procedures. Especially, the diastolic pressure showed a significant increase at extraction procedures. There was no significant fluctation in the pulse rate or percutaneous oxygen saturation degree. During treatment, blood pressure and pulse rate are the essential monitoring parameters for all patients.
Since oxygen saturation in the arterial blood is considerably lower in old people than in young people, old peoples capacity to supply oxygen to myocardium are significantly lowered. Therefore, the usage of a combination of apparatus to measure percutaneously the oxygen saturation degree is very useful for old people.
