The Laryngeal Tube Suction Versus Endotracheal Tube for Ventilation in Gynecological Laparoscopic Surgery

The Laryngeal Tube Suction vs Endotracheal Tube for Ventilation in Gynecological Laparoscopic Surgery

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01345747

Enrollment

120

Registered

2011-05-02

Start date

2008-06-30

Completion date

2009-07-31

Last updated

2011-05-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Focus Groups

Keywords

laryngeal tube suction, gynecology, laparoscopic surgery

Brief summary

This study the investigators compare peak airway pressure (PAP), expire tidal volume (TV), end tidal CO2 (ETCO2), SpO2, mean arterial pressure (MAP) and heart rate (HR) after the insertion of laryngeal tube suction or endotracheal tube in patients undergoing elective gynecological laparoscopic surgery.

Detailed description

Background: For standard procedure, the endotracheal tube is used to ventilate the anesthetized patients who undergo gynecological laparoscopic surgery that increase intrabdominal pressure. Now there is a new supraglottic airway device, laryngeal tube suction (LTs) can be use instead of ETT. Objective This study the investigators compare peak airway pressure (PAP), expire tidal volume (TV), end tidal CO2 (ETCO2), SpO2, mean arterial pressure (MAP) and heart rate (HR) after the insertion of laryngeal tube suction or endotracheal tube in patients undergoing elective gynecological laparoscopic surgery. Material and methods Prospective single blinded randomized control trial, the patients were divided into two groups, LTs group and ETT group n = 60 for each group. All patients were induced anesthesia with fentanyl 1-2 mcg/kg, propofol 2 mg/kg, vecuronium 0.1 mg/kg then maintained anesthesia with air : oxygen 30%. Respirator setting are tidal volume 10 ml/kg, I/E 1:2 adjust RR base on ETCO2 keep ETCO2 35-40 mmHg. Results No statistical difference in demographic data between groups. PAP and ETCO2 in the LTs group were significant higher than ETT group in the first 5 and 10 minutes but no statistically significant after 10 minutes until the end of operation. No statistically significant in TV and SpO2 between groups. In ETT group MAP and HR after insertion are significant higher than LTs group, no statistically significant about postoperative complication such as sorethroat, hoarseness and nausea vomiting. Conclusion LTs can be used in gynecological laparoscopic surgery like ETT.

Interventions

DEVICElaryngeal tube (VBM Medizintechnik, Sulz, Germany)

laryngeal tube suction number 3 and 4

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

FEMALE

Age

20 Years to 65 Years

Healthy volunteers

Inclusion criteria

* female age between 20-65 years * ASA class 1-2 * elective gynecologic laparoscopic surgery * height \< 180 cm * BMI \< 35 kg/m2

Exclusion criteria

* interincisor gap \< 2.5 cm * risk of aspiration * history of difficult intubation * oropharyngeal pathology * allergy to anesthetic drug

Design outcomes

Primary

Measure	Time frame	Description
respiratory parameter	1-3 hours	ETCO2, peak airway pressure and expired TV during operative period

Secondary

Measure	Time frame	Description
hemodynamic response	30 minutes	blood pressure and heart rate after LT insertion

Countries

Thailand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026