To Compare the Incidence of POST Between a TaperGuard ETT and Cylindrical-shaped ETT Under High Cuff Pressure

The Second Affiliated Hospital of Dalian Medical University

Status: Unknown

Conditions: Postoperative Complications

Treatments: Other: TaperGuard ETT

Study type: Interventional

Funder types: Other

Identifiers

NCT02666300

post2015taper

Details and patient eligibility

About

Postoperative Sore Throat (POST) is supposed to be the most frequently occurred respiratory complication related to endotracheal intubation .Whether the new type of ETT(TaperGuard ETT) to decrease or to increase the complications of general anesthesia compared with Cylindrical-shaped ETT is still unknown .In this study ,we will compare the different incidence of complications following general anesthesia between TaperGuard ETT and Cylindrical-shaped ETT under high endotracheal tube cuff pressure.

Full description

BACKGROUND:Postoperative Sore Throat (POST) is supposed to be the most frequently occurred respiratory complication related to endotracheal intubation .Endotracheal tube size ,airway manipulation ,patients position et al. have been recognized as the factors affecting Postoperative Sore Throat .Controversy in respect of the relationship between the cuff design and POST is still existed. Whether the new type of ETT (TaperGuard ETT) to decrease or to increase the complications of general anesthesia compared with Cylindrical-shaped ETT is still unknown .In this study ,we will compare the different incidence of complications following general anesthesia between TaperGuard ETT and Cylindrical-shaped ETT under high endotracheal tube cuff pressure.

METHODS:Patients undergoing elective non-throat and non-neck surgery were randomly allocated to receive either a TaperGuard ETT(group T) or Cylindrical-shaped ETT ( Group C).Patients received general anesthesia with different endotracheal tubes .Recoil of inflation syringe plunger was used to inflate the cuff. In the study , the cuff pressures of the endotracheal tube were recorded by a calibrated cuff manometer at two time: when the intubation was complited and before endotracheal tube was removed. The incidence and severity of Postoperative Sore Throat(POST),hoarseness, cough were collected by a single investigator blinded to the experiment at 0, 1,6, 12, and 24 hours post-operation.

Enrollment: 40 estimated patients

Sex: All

Ages: 18 to 75 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• General anesthesia surgery

aged 18 to 75 years

ASA classⅠ or Ⅱ

undergoing elective non-throat and non-neck surgery under generalanesthesia

intubation timemore than two hours

BMI≤30 kg／m2

Exclusion criteria

• Patients with ahistory of preoperative sore throat

known airway disease and difficult intubation

more than one attempt at intubation

Mallampati grade 3 to 4

Cormack-Lehane grade3 to 4

BMI >35 Kg/m2

Those have an operation with the lateral flank or prone position

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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40 participants in 1 patient group

TaperGuard ETT

Experimental group

Description:

tracheal intubation with the TaperGuard ETT，the ETT cuff is Taper-shangped.

Treatment:

Other: TaperGuard ETT