Cuff Pressure and Airway Edema in CABG With CPB

NCT ID: NCT07148024

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

76 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-24

Study Completion Date

2026-02-10

Brief Summary

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This study investigates how endotracheal tube (ETT) cuff pressure management during cardiopulmonary bypass (CPB) in coronary artery bypass grafting (CABG) affects upper airway edema. Patients will be randomized into two groups: cuff pressure kept at 0 mmHg or maintained at 20-30 mmHg during CPB. Ultrasonography will be used to measure lateral pharyngeal wall thickness, tongue parameters, and other airway dimensions at predefined perioperative time points. The primary outcome is the change in lateral pharyngeal wall thickness as an indicator of airway edema. A total of 76 patients aged 18-80 years undergoing elective CABG with CPB will be enrolled. The results aim to clarify safe cuff pressure management strategies to reduce airway edema.

Detailed Description

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Purpose This study aims to evaluate the effect of endotracheal tube (ETT) cuff pressure management during cardiopulmonary bypass (CPB) in coronary artery bypass grafting (CABG) surgery on the development of upper airway edema. Ultrasonography will be used to assess changes in lateral pharyngeal wall (LPW) thickness, tongue thickness, correlation between intravenous fluid volume at multiple perioperative time points.

Study Design

This is a prospective, randomized, double-blind, controlled clinical trial. Patients undergoing elective CABG with CPB will be randomly assigned into two groups:

Group 1: ETT cuff pressure maintained at 0 mmHg during CPB Group 2: ETT cuff pressure maintained at 20-30 mmHg during CPB Cuff pressures will be monitored with a manometer every 5 minutes and adjusted as needed. At the end of CPB, all patients will have standard cuff pressure (20-30 mmHg).

Outcomes Primary outcome: Changes in LPW thickness as a marker of upper airway edema assessed by ultrasonography at five time points (T0: Preoperative T1: Before initiation of CPB T2: At the end of CPB T3: 2nd postoperative hour).

Secondary outcomes: Changes in tongue thickness, correlation between intravenous fluid volume and airway edema.

Participation Approximately 76 patients (18-80 years, ASA III-IV) scheduled for elective CABG with CPB will be enrolled.

Conditions

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Airway Ultrasound Airway Edema Endotracheal Tube

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Parallel assigment
Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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ETT cuff pressure 0 mmHg

ETT cuff pressure will be set to 0 mmHg

Group Type ACTIVE_COMPARATOR

ETT cuff pressure 0 mmHg

Intervention Type DEVICE

In this group, the endotracheal tube (ETT) cuff pressure will be maintained at 0 mmHg during cardiopulmonary bypass (CPB)

ETT cuff pressure 20-30 mmHg

ETT cuff pressure will be set to 20-30 mmHg

Group Type ACTIVE_COMPARATOR

ETT cuff pressure 20-30 mmHg

Intervention Type DEVICE

In this group, the endotracheal tube (ETT) cuff pressure will be maintained at 20-30 mmHg during cardiopulmonary bypass (CPB)

Interventions

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ETT cuff pressure 0 mmHg

In this group, the endotracheal tube (ETT) cuff pressure will be maintained at 0 mmHg during cardiopulmonary bypass (CPB)

Intervention Type DEVICE

ETT cuff pressure 20-30 mmHg

In this group, the endotracheal tube (ETT) cuff pressure will be maintained at 20-30 mmHg during cardiopulmonary bypass (CPB)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patients scheduled for elective coronary artery bypass grafting (CABG) surgery
* Aged 18-80 years
* ASA physical status class III-IV
* Providing written informed consent

Exclusion Criteria

* History of difficult intubation
* Anatomical abnormalities of the upper airway
* Body mass index (BMI) \> 35 kg/m²
* Acute respiratory tract infection
* Emergency surgeries
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Engin Çetin

OTHER_GOV

Sponsor Role lead

Responsible Party

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Engin Çetin

principal investigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Engin Çetin

Role: PRINCIPAL_INVESTIGATOR

Kocaeli City Hospital

Locations

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University of Health Sciences Kocaeli City Hospital

İzmit, Kocaeli, Turkey (Türkiye)

Site Status RECRUITING

Countries

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Turkey (Türkiye)

Central Contacts

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Engin ÇETİN

Role: CONTACT

5321206004 ext. 90

Engin Çetin

Role: CONTACT

05321206004

Facility Contacts

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MEHMET YILMAZ

Role: primary

505 217 44 32 ext. 90

References

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Aytac BG, Soyal OB. Ultrasonographic evaluation of the postoperative airway edema after robotic prostatectomy: a single center observational study. Eur Rev Med Pharmacol Sci. 2023 Sep;27(18):8505-8513. doi: 10.26355/eurrev_202309_33775.

Reference Type BACKGROUND
PMID: 37782166 (View on PubMed)

Other Identifiers

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KSH-ANREA-EC-03

Identifier Type: -

Identifier Source: org_study_id

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