The use of ultra-pulsed fractional carbon dioxide laser to accelerate the regression of post-surgical dog-ears: a prospective randomized controlled clinical trail

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000039280

Enrollment

Unknown

Registered

2020-10-22

Start date

2020-10-30

Completion date

Unknown

Last updated

2021-01-25

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

Conditions

Dog ear

Interventions

Intervention:Fractional Laser

control group:Nil

Eligibility

Sex/Gender

All

Age

1 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. Patients whose surgical site is located on the head and face; 2. Patients 4 weeks after removal of stitches; 3. Patients with visible cat ears; 4. Subjects with skin types III-IV; 5. The subjects who signed the informed consent and were willing to participate in the trial and cooperate with the follow-up.

Exclusion criteria

Exclusion criteria: 1. Patients with skin infection, hypertrophic scar, keloid and local glucocorticoid injection in the past 6 months; 2. Patients with history of skin malignant tumor; 3. Patients with pregnancy or history of unstable systemic diseases; 4. Subjects who have exposure to the sun or can't work outdoors.

Design outcomes

Primary

Measure	Time frame
Height Regression Rate;	—

Secondary

Measure	Time frame
Volume Regression Rate;	—

Countries

China

Contacts

Public ContactYixin Zhang

The Ninth People's Hospital Affiliated to Medical College of Shanghai Jiaotong University

zhangyixin6688@163.com+86 13061775858

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026