An interventional study of Red light exposure and Red-blue light exposure in Perianal Abscess, sponsored by The Affiliated Hospital of Putian University. Not yet recruiting at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-09-04.
Sponsored by The Affiliated Hospital of Putian University · Not applicable, Interventional, and Treatment
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.
131 studies on the registry are indexed under Erythema; 17 are open to participants now.
This study's planned enrollment of 222 is above the median of 50 across 114 interventional studies indexed under Erythema.
Browse Erythema studies →The Affiliated Hospital of Putian University is the lead sponsor of 14 studies on the registry; 13 are open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Routine care of patients after surgery for perianal abscesses.
Postoperative care of patients with perianal abscesses using routine plus red light irradiation.
Device: Red light exposure
Use of routine plus red and blue light in postoperative care of patients with perianal abscesses.
Device: Red-blue light exposure
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。
Wound healing time
Defined as 100% re-epithelialization assessed by blinded evaluator.
Time frame: Measurements were taken over a time frame of 24 hours postoperatively to complete epithelialisation.
Postoperative pain intensity
Assessed 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."
Time frame: Baseline, Day 1, 3, 5, 7, and Day 14±2
Peripheral tissue edema（Grade 0-3）
* 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.
Time frame: Day 1, 3, 5, 7, and Day 14±2
Assessment of Granulation Tissue in Wound Bed
* 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.
Time frame: Day 1, 3, 5, 7, and Day 14±2
Length of hospital stay
Measured in hours with standardized discharge criteria.
Time frame: From surgery end to discharge (up to 7 days)
Complication incidence
Measurements include the incidence of postoperative bleeding, urinary retention, etc.
Time frame: Within 30 days postoperatively
Plan to share: No — Based on a strict commitment to participant privacy protection, compliance with the terms of the ethical review protocol, and adherence to the sponsoring institution's policies, IPD from this study will not be shared at this time.
No publications or documents are linked to this record.
Start is estimated for Sep 2025; primary completion for Aug 2026, 10 months later.
Of 23 non-industry interventional studies with no phase under Erythema, half reached primary completion within 10 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 24. This study's planned 10 months is close to that.
Counting every sponsor, half of 43 studies reached it within 3 months; a quarter within 1 and three quarters within 11.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Sep 2025. You cannot join it, but the record below documents what was studied.
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The Affiliated Hospital of Putian University