A study of perioperative pain management by ultrasound-guided thoracic paravertebral block method (multiple injection vs. continuous infusion) in video-assisted thoracoscopic surgery

A study of perioperative pain management by ultrasound-guided thoracic paravertebral block method (multiple injection vs. continuous infusion) in video-assisted thoracoscopic surgery - A study of perioperative pain management by ultrasound-guided thoracic paravertebral block method (multiple injection vs. continuous infusion) in video-assisted thoracoscopic surgery

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000020367

Enrollment

Registered

2016-02-01

Start date

2016-04-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

video-assisted thoracoscopic surgery for lung tumor

Interventions

continuous infusion (Thoracic paravertebral block) single injection[3 points] (Thoracic paravertebral block)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Elective video-assisted thoracoscopic surgery for lung tumor American Society of Anesthesiologists Physical Status Classification 1-2 Preoperative ADL is independence Written informed consent is provided

Exclusion criteria

Exclusion criteria: Consciousness disabilities Enough judgment ability nothing Emergency ASA-PS over 3 History of hypersensitivity to ropivacaine or amide type local anesthetic Renal dysfunction (less than eGFR30) Blood clotting disorder (less than 100,000 platelets/mcl, PT-INR 1.5 or more, less than APTT% 70%)

Design outcomes

Primary

Measure	Time frame
Pain scales at 24 hours after surgery (Visual analog scale (VAS))	—

Secondary

Measure	Time frame
Dose of postoperative morphine Pain scales after surgery at 0 hours, 2 hours, 48 hours (Numeric Rating Scale (NRS)) The rate of change of NRS in 24 hours 2 hours after surgery The frequency of complications	—

Countries

Japan

Contacts

Public ContactTasuku Fujii

Nagoya University Hospital Department of Anesthesiology

plus9@med.nagoya-u.ac.jp052-744-2340

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026