Effects of photobiomodulation with 940 Nm diode laser on post-rhinoplasty nasal tip swelling: A randomized controlled trial

IF 2.6 3区医学 Q2 ONCOLOGY

Photodiagnosis and Photodynamic Therapy Pub Date : 2025-07-16 DOI:10.1016/j.pdpdt.2025.104723

Mohammadreza Jamalpour , Hanieh Tavassoli Ara , Fatemeh Sheibani , Pantea Amiri , Reza Fekrazad

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Abstract

Rhinoplasty, while effective for nasal reshaping, frequently results in postoperative edema and delayed recovery.

This randomized controlled trial evaluated photobiomodulation (PBM) using a 940 nm diode laser (4 J/cm² energy density, 0.1 W power, 2.27 cm² spot size) for managing nasal swelling in 20 patients following open rhinoplasty. Participants were allocated to laser (16 sessions over 8 weeks) or control groups, with standardized photogrammetric measurements of nasal width and tip rotation preoperatively and at 1, 4, and 8 weeks postoperatively.

The intervention group demonstrated a mean nasal width reduction of 2.5 mm (p = 0.08) and a 3-degree improvement in tip rotation (p = 0.12) compared to controls, though statistical significance was not achieved. Qualitative assessments revealed marked edema reduction in 70 % of treated patients versus 30 % of controls.

While limited by sample size, these findings suggest 940 nm PBM may accelerate resolution of post-rhinoplasty swelling through anti-inflammatory mechanisms, warranting further investigation in larger cohorts.

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940 Nm二极管激光光生物调节对鼻整形术后鼻尖肿胀的影响：一项随机对照试验。

鼻整形术，虽然有效的鼻部重塑，但经常导致术后水肿和延迟恢复。本随机对照试验评估了使用940 nm二极管激光器（4 J/cm²能量密度，0.1W功率，2.27 cm²光斑大小）光生物调节（PBM）治疗20例开鼻成形术后鼻肿胀的效果。参与者被分配到激光组（16个疗程，8周）或对照组，术前和术后1、4和8周进行标准化的鼻宽和鼻尖旋转摄影测量。与对照组相比，干预组鼻宽平均缩小2.5 mm (p=0.08)，鼻尖旋转改善3度（p=0.12），但未达到统计学意义。定性评估显示，70%的治疗患者水肿明显减轻，而对照组为30%。虽然受样本量的限制，这些发现表明940 nm PBM可能通过抗炎机制加速鼻整形术后肿胀的消退，值得在更大的队列中进一步研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Photodiagnosis and Photodynamic Therapy ONCOLOGY-

CiteScore

5.80

自引率

24.20%

发文量

509

审稿时长

50 days

期刊介绍： Photodiagnosis and Photodynamic Therapy is an international journal for the dissemination of scientific knowledge and clinical developments of Photodiagnosis and Photodynamic Therapy in all medical specialties. The journal publishes original articles, review articles, case presentations, "how-to-do-it" articles, Letters to the Editor, short communications and relevant images with short descriptions. All submitted material is subject to a strict peer-review process.