Clinical application of low-level laser therapy (Photo-biomodulation therapy) in the management of breast cancer-related lymphedema: a systematic review.

BACKGROUND: Breast cancer-related lymphedema (BCRL) is a frequent issue that arises after mastectomy surgery in women and compromises physical and mental function. Previously published studies have shown positive effects with the use of Low-level laser therapy in another term Photo-biomodulation therapy (PBM). This research investigated the efficacy of clinical use of LLLT (PBM) in the treatment of metastatic breast cancer-related lymphedema. METHODS: PubMed, PEDro, Medline, and the Cochrane Library were searched for LLLT clinical trials published before October 2021. The methodological quality of randomized trials and the effectiveness of Laser Therapy for BCRL were evaluated. The primary objectives were arm circumference or arm volume, whereas the secondary goals were to assess shoulder mobility and pain severity. RESULTS: Eight clinical trials were analyzed in total. Typically, the included RCTs had good research quality. At four weeks, there was a considerable reduction in arm circumference/volume, and this continued with long-term follow-up. However, no statistically significant change in shoulder mobility or pain severity was seen between the laser and placebo groups at 0-, 1-, 2-, and 3-month short-term follow-up. CONCLUSIONS: The findings of this comprehensive study demonstrated that LLLT (PBM) was successful in diminishing arm circumference and volume than improving shoulder mobility and pain. Data indicates that laser therapy (PBM) may be a beneficial treatment option for females with PML. Because of the scarcity of evidence, there is a strong need for well-conducted and longer-duration trials in this field. TRIAL REGISTRATION: Details of the protocol for this systematic review were registered on PROSPERO and can be accessed at www.crd.york.ac.uk/PROSPERO/display_record.asp?ID=CRD42022315076 .

Terapia física complexa no tratamento do linfedema maligno / Complex physiotherapy in the tratament of malignant lymphedema

O linfedema de membro superior é uma complicação frequente após tratamento do câncer de mama. Quando há recidiva do tumor ou crescimento tumoral desconhecido que gera infiltração ou compressão da rede linfática, pode ocorrer o desenvolvimento do linfedema maligno. O objetivo terapêutico para o linfedema maligno é estabilizar a doença e mantê-la assintomática. A fisioterapia pode auxiliar no tratamento por meio da técnica denominada "terapia física complexa". O presente estudo aborda o caso de uma paciente de 61 anos pós-tratamento de câncer de mama diagnosticada com linfedema maligno no membro superior esquerdo. A equipe de fisioterapia utilizou a terapia física complexa para redução e controle do linfedema no membro superior afetado e obteve valores expressivos na diminuição do volume em relação à avaliação inicial e ao final do tratamento, ainda, não houve retrocesso a valores iniciais após período de 3 meses de seguimento. (AU)

Upper limb lymphedema is a frequent complication following breast cancer treatment. When there is tumor relapse, or unknown tumor growth that leads to lymph nodes compression or infiltration, the development of malignant lymphedema can take place. The therapeutic goal for malignant lymphedema is to stabilize the disease, and keep it asymptomatic. Physical therapy can help in the treatment through the technique called "complex physical therapy". The present study deals with the case of a 61-year-old patient after treatment of breast cancer diagnosed with malignant lymphedema in the left upper limb. The physiotherapy team used complex physical therapy to reduce and control the upper limb lymphoedema, and obtained significant values in volume reduction at the end of treatment compared to baseline, and no reversal to initial values after a 3-month follow up was observed. (AU)

Low level laser therapy for the management of breast cancer-related lymphedema: A randomized controlled feasibility study.

OBJECTIVES: This study aimed to determine the feasibility of conducting a full scale randomized controlled trial investigating the effectiveness of low level laser therapy (LLLT), also known as photobiomodulation (PBM) therapy, used in addition to conventional therapy, for managing breast cancer related lymphedema (BCRL). MATERIALS AND METHODS: Patients with BCRL were recruited from the Southern District Health Board (New Zealand) via lymphedema therapists' referrals, and randomly allocated into either the laser group, which received BCRL conventional therapy (e.g., wearing compression garments, massage therapy, and/or exercise) plus a 6-week LLLT (PBM) intervention program (wavelength: 980/810 nm (80:20 ratio); output power: 500 mW beam spot size: 5 cm2 ; irradiance: 100 mW/cm2 ; treatment time per area: 1 minute dosage per area treated: 30J (6J/cm2 ); 10 points of treatment from axilla to wrist total LLLT (PBM) treatment time: 10 minutes total dosage delivered: 300 J), or the control group, which received BCRL conventional therapy alone. Feasibility was determined by recruitment and randomization rates, retention of participants and treatment protocol adherence, and was assessed during the recruiting and intervention periods. Data on participant satisfaction and adverse reactions of LLLT (PBM) were collected on completion of this study. Clinical outcomes (i.e., limb circumference, participant's perceived symptoms, psychological impacts, and activity disability) were assessed at baseline, and 6 and 12 weeks post-randomization. RESULTS: Over a 6-month recruitment window, 17 participants with BCRL were recruited in the study, and randomized into the two groups (recruitment rate of 81%, and randomization rate of 100%). Treatment adherence was high in the laser group (88.9% of participants completed all treatments). Retention rates were 88.9% for the laser group and 100% for the control group at both 6 and 12 weeks post-randomization. All participants who completed LLLT (PBM) treatment indicated that they were satisfied with the treatment. No serious adverse reactions were reported in this study. Clinical outcomes failed to show additional benefits of LLLT (PBM) intervention. CONCLUSION: This study demonstrated that it is feasible to conduct a fully powered RCT to definitively test the effectiveness of the additional use of LLLT (PBM) in the management of BCRL. For such a trial, 114 participants will be needed at baseline. Lasers Surg. Med. 50:924-932, 2018. © 2018 Wiley Periodicals, Inc.