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Comparison of the Duration of Ropivacaine Combined With Dexmedetomidine or Dexamethasone on Paravertebral Block

Comparison of the Duration of Ropivacaine Combined With Dexmedetomidine or Dexamethasone on Paravertebral Block in Patients Undergoing Video-assisted Thoracic Surgery

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03570645
Enrollment
154
Registered
2018-06-27
Start date
2019-07-12
Completion date
2019-11-18
Last updated
2019-11-20

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

Conditions

Lung Cancer

Brief summary

This study was a prospective, randomized, controlled, and double-blind trial. Major assessments were made during the operation and 48 h postoperatively.

Detailed description

The prime outcomes were the time in minutes from leave the postoperative care unit to the first patient-controlled intravenous analgesia press.The secondary outcomes were to compare the following: (1)blood concentrations of ropivacaine was measured at 0.5 h, 1 h, 2 h, 3 h, and 24 h after paravertebral nerve block; and (2) the patient's intraoperative opioid use, phenylephrine use, fluid intake, urine output, dry mouth score, and 24 h and 48 h visual analogue scale.

Interventions

DRUGDexmedetomidine Group

combination of ropivacaine and dexmedetomidine 100 ug every time

combination of ropivacaine and dexamethasone 10mg every time

DRUGcontrol group

block with only ropivacaine

Sponsors

China Medical University, China
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)

Intervention model description

thoracic paravertebral blocks using a combination of ropivacaine and dexmedetomidine or dexamethasone

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* (1) age 18 to 65 years, * (2) scheduled to undergo video-assisted thoracic surgery, * (3) American Society of Anesthesiologists risk classification I-II.

Exclusion criteria

* (1) patient refusal; * (2) known hypersensitivity to the study medication (ropivacaine); * (3) long-term use of opioids; * (4) liver or renal insufficiency; * (5) a history of psychiatric or neurological disease; * (6) deafness; * (7) regular use of acetaminophen, nonsteroidal anti-inflammatory drugs, corticosteroids, or antiemetics; and * (8) a preoperative Pittsburgh Sleep Quality Index (PSQI) global score higher than 6.

Design outcomes

Primary

MeasureTime frameDescription
Change of thoracic paravertebral block analgesia durationChange from Baseline to 2 days after surgeryThe prime outcomes were the time in minutes from leave the postoperative care unit to the first patient-controlled intravenous analgesia press

Secondary

MeasureTime frameDescription
blood concentrations of ropivacaineChange from Baseline to 2 days after surgery(The secondary outcomes were to compare the following: (1)blood concentrations of ropivacaine was measured at 0.5 h, 1 h, 2 h, 3 h, and 24 h after paravertebral nerve block; and (2) the patient's intraoperative opioid use, phenylephrine use, fluid intake, urine output, dry mouth score, and 24 h and 48 h visual analogue scale.

Countries

China

Outcome results

None listed

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