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Postoperative mental disorder following prolonged oral surgery.

A prolonged period of oral surgery is a potential risk factor of postoperative mental disorders although no such report has been published to date. We retrospectively studied perioperative features in 36 patients who underwent prolonged (10 hours or more) of oral surgery. Patients were categorized as pre-delirium (Pre-D) when they manifested 1 or 2 symptoms and delirium (D) when they showed more than 2 symptoms, according to the modified International Classification of Diseases, 10th edition. Of the 36 patients who returned to a normal mental state without drug therapy, 13 were classified as D and 14 were Pre-D. A number of patients had moderate complications preoperatively, and massive hemorrhaging occurred during the operation in some Pre-D and D patients. Age was greater in D (62.0 +/- 9.9 years) than in Pre-D (56.0 +/- 13.8 years) patients. Propofol-based general anesthesia was most commonly employed. The time prior to appearance of pre-delirium was significantly shorter in D (30.0 +/- 16.7 hours) than in Pre-D (55.0 +/- 35.0 hours) group patients. Our results indicate that, in general, patients predisposed to postoperative mental disorders have moderate complications preoperatively, are generally older than 50-years-old, receive propofol-based general anesthesia and/or experience a massive hemorrhage during the operation.

Age Factors↗

Senior residents' opinions about oral surgery programs.

A questionnaire for senior oral surgery residents was distributed to elicit their opinions about various phases of their oral surgical training. Of 206 questionnaires sent to members of house staffs in approved programs, 122 responses (59%) were received. The average senior resident felt well prepared in exodontia, trauma, and orthognathic surgery. He considered himself much less prepared in pediatric oral surgery and tumor management. The average resident believed oral surgery was well regarded and would again choose his own program for training.

Curriculum↗

Stress reduction prior to oral surgery.

Patients about to undergo oral surgical procedures may be fearful and anxious. It is thought that stress reduction can be attained by relaxation and reassurance. One time stress reduction techniques were tested on 100 patients prior to oral surgery and measurements of stress were made prior to and during the procedures. Patients were divided randomly into four groups: group one patients received general surgical information about tooth removal; group two patients listened to a relaxation tape; group three patients listened to a combination of surgical information and relaxation information tape; and group four patients had no intervention. The day of oral surgery, patients were administered Corah's Dental Anxiety Scale. In addition, measurements of peripheral skin temperature, frontalis EMG for facial muscle tension and blood pressure recordings were made. The measurements were taken prior to and after the patients listened to the information mentioned above on audio tapes, (groups 1-3) or relaxed in their own way (group 4). Self assessment of anxiety reduction was recorded and evaluation of relaxation was made by the oral surgeon during the surgical procedure. Observations were made relating to age, sex, degree of surgical difficulty and presence or absence of preoperative pain. A significant decrease in blood pressure (p_.01 was noted between the experimental and control group. Reduction of anxiety was notably seen with group three patients, where EMG and temperature differences varied from the control group. It was also noted that all patients perceived some degree of relaxation.

Adult↗

Beta-adrenoceptor blockade in stress due to oral surgery.

1 The effects of a single oral dose of 5 mg pindolol (P) and 100 mg metoprolol (M) were assessed in a double-blind study in 30 patients undergoing oral surgery. 2 Systolic and diastolic blood pressures and heart rate were reduced 90 min after oral medication and did not exceed initial values at rest during the procedure. 3 Noradrenaline, adrenaline and c-AMP concentrations did not differ at any time from the control values at rest after P, but were increased after local anaesthesia and during oral surgery after M as were the metabolic responses reflected by plasma concentrations of glucose and free-fatty acids. 4 Plasma levels of ACTH and cortisol showed the typical increase during the procedure, being independent of beta-adrenoceptor blockade. In contrast to the cardioselective antagonist M, prophylactic administration of the non-selective drug P prevented the sympathetic and metabolic responses to the stress of oral surgery. 5 Hypothalamic and adrenal stimulation were not reduced by either selective or non-selective beta-adrenoceptor blockade.

Adrenergic beta-Antagonists↗

Oral surgery in anticoagulated patients without reducing the dose of oral anticoagulant: a prospective randomized study.

PURPOSE: This study assessed the risk associated with several schedules of perioperative treatment with coumadin in anticoagulated patients who underwent oral surgery. PATIENTS AND METHODS: A prospective, randomized study compared bleeding complications with six perioperative schedules in 92 patients chronically treated with acenocoumarol. In three of the perioperative schedules, the dose was reduced before surgery and calcium heparin was added. In the other three, oral anticoagulation was not modified and heparin was not used. The groups also differed regarding the antifibrinolytic agents used and the postoperative measures applied. RESULTS: Those schedules in which the oral anticoagulation was not modified preoperatively and an antifibrinolytic agent was applied locally both during and after surgery were not associated with a significantly higher odds ratio of bleeding complications than those in whom oral anticoagulation was reduced and calcium heparin was added preoperatively. CONCLUSIONS: In orally anticoagulated patients who undergo oral surgery, schedules that maintain the oral anticoagulant regimen and use local tranexamic acid as an antifibrinolytic agent postoperatively for 2 days are safe, simple, and less troublesome.

Acenocoumarol↗