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Bispectral Index and Clinical Parameters Evaluation in Dental Procedures

NCT02671578 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2016-02-02

No results posted yet for this study

Summary

BACKGROUND: The degree of consciousness during nitrous oxide use is still a matter of concern for both dentists and anesthesiologists. Investigators hypothesized that BIS levels do not vary according nitrous oxide concentration during minimum to moderate sedation in the dental treatment.

METHODS: One hundred patients undergoing dental procedures demanding local anesthesia (1.8 mL of 2% lidocaine with 1:100.000 epinephrine) were enrolled in this study. Initial pain and anxiety were measured by 11-point numerical and anxiety visual scales, respectively. Systolic/diastolic arterial blood pressure, SpO2, heart and respiratory rates, and psychomotor ability (Trieger test) were assessed before, during and after dental treatment. Sedation levels were evaluated by both BIS and sedation analogic scale at the same intervals. The duration of treatment along with nitrous oxide concentration and side effects were observed. Kruskal-Wallis, Friedman and Mann-Whitney tests were used (alpha=5%).

Conditions

Interventions

DRUG

Nitrous Oxide

The N2O/O2 equipment was composed by two flow meters with an anti-hypoxia system valve, 70% N2O maximum disposal and 30 L/min O2 valve to immediate oxygen dispensation. Masks were individually selected, being 100% O2 (6 L/min) dispensed until respiratory rate stabilization. N2O was incremented at 10% each 2 minutes (70% max, if necessary) until some of the following signals were noticed: silence, relax/comfort report, decreased eyelid movements, decreased spontaneous body movements, warm sensation, tingling sensation or numbness at feet, hands or oral region, and slightly euphoric sensation.

Sponsors & Collaborators

  • Faculty Sao Leopoldo Mandic Campinas

    collaborator OTHER

  • pontifical catholic university - Rio de Janeiro

    collaborator UNKNOWN

  • Francisco Groppo

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2006-11-30
Primary Completion
2007-11-30
Completion
2008-11-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02671578 on ClinicalTrials.gov