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A non-randomized, open-label, single-center, exploratory study comparing the time required for flap creation in video-assisted thyroid surgery using conventional muscle hooks versus a cordless LED illuminated transparent plastic hook (Koplight S)

A non-randomized, open-label, single-center, exploratory study comparing the time required for flap creation in video-assisted thyroid surgery using conventional muscle hooks versus a cordless LED illuminated transparent plastic hook (Koplight S) - VANS-Koplight S trial

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000058236
Enrollment
20
Registered
2025-06-20
Start date
2025-06-23
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

Graves&#39

Interventions

Conventional retractor hook group: Using the conventional retractor hook during flap creation in video-assisted neck surgery (VANS). Koplight S group: Using the cordless LED-illuminated transparent pl

Sponsors

University of Miyazaki
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Female patients who have undergone or are scheduled to undergo VANS for Graves' disease, thyroid tumors, or parathyroid disorders -Conventional retractor hook group: Patients who underwent VANS between January 1, 2024, and March 31, 2025 -Koplight S group: Patients scheduled to undergo VANS between the approval date by the head of the research institution and March 31, 2026 2. Patients aged 20 to 69 years 3. Patients with a BMI of less than 30

Exclusion criteria

Exclusion criteria: Patients who are determined by the principal investigator or study collaborators to be inappropriate for participation in this study.

Design outcomes

Primary

MeasureTime frame
Time required for flap creation (time from the start of surgery to the completion of flap creation—

Secondary

MeasureTime frame
Number of bleeding occurrences during the dissection process of flap creation—

Countries

Japan

Contacts

Public ContactKazuhiro Higuchi

University of Miyazaki Faculty of Medicine Division of the Gastrointestinal, Endocrine and Pediatric Surgery

kazuhiro_higuchi@med.miyazaki-u.ac.jp0985-85-2808

Outcome results

None listed

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