Examination of the effect and safety of office-based flexible endoscopic surgery for laryngeal papilloma using a carbon dioxide laser fiber

Examination of the effect and safety of office-based flexible endoscopic surgery for laryngeal papilloma using a carbon dioxide laser fiber - Office-based flexible endoscopic surgery using a carbon dioxide laser fiber

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000019335

Enrollment

Registered

2015-10-14

Start date

2015-10-20

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

recurrent laryngeal papilloma

Interventions

flexible endoscopic surgery using carbon dioxide laser

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) laryngeal papilloma 2) performance status 0 or 1 3) age more than 20 y.o. 4) surgical indication under general anesthesia

Exclusion criteria

Exclusion criteria: 1) bronchial athma 2) allegies to lidocaine 3) during pregnancy 4) age more than 80 y.o. 5) heart, liver, kidney dysfunction

Design outcomes

Primary

Measure	Time frame
Disease resolution quantified by comparing pretreatment examinations at presentation to posttreatment evaluations 8 weeks after treatment	—

Countries

Japan

Contacts

Public ContactKenichi Watanabe

Tohoku University School of Medicine Otorhinolaryngology, Head and Neck Surgery

kenw@orl.med.tohoku.ac.jp022-717-7304

Outcome results

None listed

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