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Effect of Red and Blue Light Irradiation on Postoperative Wound Healing in Perianal Absces

Effect of Red and Blue Light Irradiation on Postoperative Wound Healing in Perianal Abscess: a Single-center Prospective Open-label Randomized Clinical Trial

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07155356
Enrollment
222
Registered
2025-09-04
Start date
2025-09-15
Completion date
2026-09-30
Last updated
2025-09-04

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

Conditions

Perianal Abscess

Keywords

perianal abscess, red light phototherapy, red and blue light phototherapy, wound healing

Brief summary

This study aims to investigate whether specialized red-blue light irradiation facilitates faster postoperative recovery and reduces complication rates in patients following perianal abscess surgery. A total of 222 eligible patients were randomly allocated equally into three groups (74 per group):①Routine Care Group: Standard wound care including cleansing and dressing changes;②Red Light Therapy Group: Routine care plus red light phototherapy;③Combined Red-Blue Light Therapy Group: Routine care plus concurrent red and blue light phototherapy.Wound healing time and incidence of complications were compared to assess postoperative recovery across interventions. The primary hypothesis posits that adjunctive phototherapy-particularly combined red-blue light irradiation-will significantly enhance wound healing, reduce edema and pain, and decrease complication rates (e.g.bleeding, urinary retention) compared to routine care alone.

Interventions

Patients in the red light group received red light therapy concurrently with standard care.

Patients in the red and blue light group received combined red and blue light therapy concurrently with standard care。

Sponsors

The Affiliated Hospital of Putian University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Aged between 18 and 75 years; * Clinical diagnosis of perianal abscess; * Procedure: Radical resection with incision and drainage.

Exclusion criteria

* Concurrent anorectal disorders (hemorrhoids, anal fissure) or malignancies/infectious diseases; * History of psychiatric disorders; * Analgesic use within 7 days preoperatively; * Coagulopathy or cardiac/hepatic dysfunction; * Pregnancy or lactation; * Contraindications to phototherapy; * IBD-related perianal abscess.

Design outcomes

Primary

MeasureTime frameDescription
Wound healing timeMeasurements were taken over a time frame of 24 hours postoperatively to complete epithelialisation.Defined as 100% re-epithelialization assessed by blinded evaluator.

Secondary

MeasureTime frameDescription
Postoperative pain intensityBaseline, Day 1, 3, 5, 7, and Day 14±2Assessed at rest and during defecation.Numerical Rating Scale will be used,patients are asked to choose a whole number (integer) from 0 to 10 that best describes their pain.0 usually means no pain.10 means the worst pain imaginable.
Peripheral tissue edema(Grade 0-3)Day 1, 3, 5, 7, and Day 14±2* Grade 0 (None): No edema. * Grade 1 (Mild): Mild edema with slight swelling around the incision; skin folds remain clearly visible. * Grade 2 (Moderate): Moderate edema with pronounced swelling around the incision; skin folds are indistinct. * Grade 3 (Severe): Severe edema with marked swelling around the incision; skin folds are obliterated.
Assessment of Granulation Tissue in Wound BedDay 1, 3, 5, 7, and Day 14±2* Grade 0 (Absent): No granulation tissue present. * Grade 1 (Poor): Minimal, pale, and friable granulation tissue with easy bleeding. * Grade 2 (Fair): Moderate amount of granulation tissue; pinkish-red in color but remains somewhat friable. * Grade 3 (Good): Healthy, abundant granulation tissue filling the wound bed; beefy red in color and firm to the touch, with minimal bleeding.
Length of hospital stayFrom surgery end to discharge (up to 7 days)Measured in hours with standardized discharge criteria.
Complication incidenceWithin 30 days postoperativelyMeasurements include the incidence of postoperative bleeding, urinary retention, etc.

Countries

China

Contacts

Primary ContactChenxing C Jian
ptyyjcx@126.com+8613959538950

Outcome results

None listed

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