Benefits of Glycopyrrolate on Intubation With Rigid-videostylet (OptiScope®)

E

Eunah Cho, MD

Status

Completed

Conditions

Cholecystitis, Acute

Treatments

Drug: Glycopyrrolate

Study type

Interventional

Funder types

Other

Identifiers

NCT03050242
2017-01-001

Details and patient eligibility

About

This study is intended to evaluate the efficacy and safety of glycopyrrolate as an antisialagogue prior to intubation with the rigid-videostylet(Optiscope®) in the general anesthesia settings. Upper airway secretions limit the use of the videostylet during during endotracheal intubation. Therefore, in this study, patients will be allocated to either of the two groups according to the administration of glycopyrrolate and the effect of glycopyrrolate in reducing oral secretions will be assessed by the observer while intubating with the rigid-videostylet. The efficacy of the antisialagogic effect on the view during endotracheal intubation will be evaluated.

Full description

Recently, the newer forms of intubating devices combining video technologies were introduced. The fiberoptic stylets are useful instrumentations especially for difficult airways and limited neck mobilizations.The OptiScope® is a semi-rigid videostylet designed for endotracheal intubation. While using the device, visualization of the airway might be obscured by the secretions during its insertion. The deterioration of the view leads to intubation failure, resulting in multiple intubation attempts, longer intubating time and desaturation.Therefore, while using the Opticoscope®, proper antisialagogic preparation will be helpful. Total 78 patients scheduled for general anesthesia aged 20-65 years and Anesthesiologists physical status (ASA) class 1 or 2 will be included. The obese patients (BMI>30) and expected difficult intubation will be excluded. The sample size was estimated based on the preliminary study. With a type Ⅰ error estimate(α) of 0.05 at 80% power, we estimated that 30 patients in each group, or 60 in total, were needed. Considering the drop-out rate of 30%, the total sample size were 78 in total. The patients will be randomly allocated to the glycopyrrolate group(G) and the control group(C). The group-G will received intramuscular glycopyrrolate 0.005mg/kg injection 1 hour before the surgery. For the group-C glycopyrrolate will not be administered. Intubation will be conducted with the OptiScope®. While intubating, the degree of the secretion will be evaluated through the OptiScope® and graded excellent, good, poor and unacceptable according to the dryness and the visualization of the vocal cord. When the vocal cord was seen without secretions, it was stated 'Excellent'. 'Good' was graded when secretions existed without the need for suctioning to visualize the vocal cord. When there were secretions and needed suctioning to clear the view, the subjects were rated 'Poor'. When intubation was failed due to poor visualization of the vocal cord despite the suctioning of the secretion, it was graded 'Unacceptable'. If the intubation is not available within 1 minute, the intubation will be done with the laryngoscope. The time to intubate will be checked by the assist anesthesiologist. The definition of the 'intubation time' is the time between the introduction of the OptiScope® into the mouth and the confirmation of the proper intubation with capnographic wave.The baseline vital signs including systolic blood pressure, mean arterial pressure, diastolic blood pressure and heart rate will be measured before the intubation and 1,3 and 5 minutes after the intubation. The collected data will be compared with the independent t-test or Mann-Whitney-Wilcoxon test for the continuous variables. Χ2 test and Fisher's exact test will be performed for the categorical variables. Significant level will be set at 0.05.

Enrollment

78 patients

Sex

All

Ages

19 to 65 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Patients undergoing elective laparoscopic cholecystectomy under general anesthesia
  • aged from 19 to 65, adult patients
  • american society of anesthesiologist physical status 1,2
  • obtaining written informed consent

Exclusion criteria

  • obese patients with body mass index above 30
  • expected difficult intubation (ex. intraoral mass, history of former difficult intubation, limitation of mouth opening..)

Trial design

Primary purpose

Supportive Care

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Triple Blind

78 participants in 2 patient groups

Glycopyrrolate
Experimental group
Description:
Glycopyrrolate 0.005mg/kg is administered intramuscularly, one hour before the surgery.
Treatment:
Drug: Glycopyrrolate
Control
No Intervention group
Description:
No injection is conducted in this group.

Trial contacts and locations

0

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Data sourced from clinicaltrials.gov

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