Dexmedetomidine Dose-Dependent on Lung Function and AQP1 in One-Lung Ventilation Surgery

NCT ID: NCT07145814

Last Updated: 2025-08-28

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

COMPLETED

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-05

Study Completion Date

2019-03-29

Brief Summary

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This randomized controlled trial evaluated the dose-dependent effects of dexmedetomidine (DEX) on pulmonary function and aquaporin-1 (AQP1) expression during one-lung ventilation (OLV) in thoracoscopic surgery.

Detailed Description

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Conditions

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Acute Lung Injury(ALI)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Placebo group

Placebo group received an equivalent volume of 0.9% saline.

Group Type PLACEBO_COMPARATOR

0.9 % saline

Intervention Type DRUG

Placebo group received an equivalent volume of 0.9% saline.

dexmedetomidine Low Dose group

Following Anesthesia induction, dexmedetomidine (DEX) Low Dose group received a DEX loading dose (0.5 µg/kg over 10 min), followed by continuous infusions of 0.3 µg/kg/h, respectively, until 30 minutes before the end of the operation.

Group Type EXPERIMENTAL

dexmedetomidine 0.3 µg/kg/h

Intervention Type DRUG

Following Anesthesia induction, dexmedetomidine (DEX) Low Dose group received a DEX loading dose (0.5 µg/kg over 10 min), followed by continuous infusions of 0.3 µg/kg/h, respectively, until 30 minutes before the end of the operation.

dexmedetomidine high dose group

Following Anesthesia induction, dexmedetomidine (DEX) high dose group received a DEX loading dose (0.5 µg/kg over 10 min), followed by continuous infusions of 0.5 µg/kg/h, respectively, until 30 minutes before the end of the operation.

Group Type EXPERIMENTAL

dexmedetomidine 0.5 µg/kg/h

Intervention Type DRUG

Following Anesthesia induction, dexmedetomidine (DEX) high dose group received a DEX loading dose (0.5 µg/kg over 10 min), followed by continuous infusions of 0.5 µg/kg/h, respectively, until 30 minutes before the end of the operation.

Interventions

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dexmedetomidine 0.3 µg/kg/h

Following Anesthesia induction, dexmedetomidine (DEX) Low Dose group received a DEX loading dose (0.5 µg/kg over 10 min), followed by continuous infusions of 0.3 µg/kg/h, respectively, until 30 minutes before the end of the operation.

Intervention Type DRUG

dexmedetomidine 0.5 µg/kg/h

Following Anesthesia induction, dexmedetomidine (DEX) high dose group received a DEX loading dose (0.5 µg/kg over 10 min), followed by continuous infusions of 0.5 µg/kg/h, respectively, until 30 minutes before the end of the operation.

Intervention Type DRUG

0.9 % saline

Placebo group received an equivalent volume of 0.9% saline.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* American Society of Anesthesiologists (ASA) physical status I or II
* Age 40-70 years
* Body mass index (BMI) 18-30 kg/m²

Exclusion Criteria

* Preoperative tumor radiotherapy or chemotherapy
* Immune or endocrine disorders
* Hepatic or renal dysfunction
* Preoperative corticosteroid use
* Recent respiratory infection or chronic lung disease
* Sick sinus syndrome or atrioventricular block
* Preoperative anemia (hemoglobin \< 90 g/L)
Minimum Eligible Age

40 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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People's Hospital of Guangxi Zhuang Autonomous Region

OTHER

Sponsor Role lead

Responsible Party

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Yuanqiang Li

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Department of Anesthesiology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region

Guilin, Guangxi, China

Site Status

Countries

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China

Other Identifiers

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2016NXSYYEC-007

Identifier Type: -

Identifier Source: org_study_id

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