Airway Responses During Desflurane Anesthesia Via a Laryngeal Mask Airway: Effects of Fentanyl Pretreatment

• Status: Completed
• Trial end date: 2011-06-01
• Target enrollment: 0
• Participant gender: All

Summary

The investigators plan to test the hypothesis that pretreatment with fentanyl prior to induction of anesthesia would result in reduce the incidence of movements and airway responses to desflurane in patients breathing spontaneously through a laryngeal mask airway (LMA). The primary aim of this study is to assess the effect of fentanyl pretreatment on the incidence of movement during induction of anesthesia. Secondary aim of the study is to evaluate the effects of titration of fentanyl according to the respiratory rate on the incidence of intraoperative respiratory events such as coughing, breath holding and laryngospasm.

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University of Texas Southwestern Medical Center
• Collaborator: Baxter Healthcare Corporation
• Treatments: Anesthetics; Desflurane; Fentanyl

Criteria

Inclusion Criteria:

• 18-64 years of age

• Subjects scheduled for elective superficial and peripheral surgery of less than 2 h duration (e.g., hernia surgery, breast surgery, upper or lower limb surgery, superficial abdominal/chest wall surgery [i.e., lipoma], minor gynecological procedures [i.e., hysteroscopy])

Exclusion Criteria:

• obesity (body mass index >30)

• pregnancy

• history of gastroesophageal reflux, hiatal hernia, significant cardiovascular, pulmonary (e.g., reactive airway disease), hepatic, renal, neurologic, metabolic, and endocrine disease

• history of alcohol and drug abuse

• requiring tracheal intubation.