Advances in treatment of lymphedema with supraclavicular vascularized lymph node transfer / 中国修复重建外科杂志

OBJECTIVE@#To review the research progress of supraclavicular vascularized lymph node transfer (VLNT).@*METHODS@#The research literature related to supraclavicular VLNT at home and abroad in recent years was extensively reviewed, and the anatomy of supraclavicular lymph nodes, clinical applications, and complications of supraclavicular VLNT were summarized.@*RESULTS@#The supraclavicular lymph nodes are anatomically constant, located in the posterior cervical triangle zone, and the blood supply comes mainly from the transverse cervical artery. There are individual differences in the number of supraclavicular lymph nodes, and preoperative ultrasonography is helpful to clarify the number of lymph nodes. Clinical studies have shown that supraclavicular VLNT can relieve limb swelling, reduce the incidence of infection, and improve quality of life in patients with lymphedema. And the effectiveness of supraclavicular VLNT can be improved by combined with lymphovenous anastomosis, resection procedures, and liposuction.@*CONCLUSION@#There are a large number of supraclavicular lymph nodes, with abundant blood supply. It has been proven to be effective for any period of lymphedema, and the combined treatment is more effective. The more clinical studies are needed to clarify the effectiveness of supraclavicular VLNT alone or in combination, as well as the surgical approach and timing of the combined treatment.

Linfedema asociado al cáncer de mama: factores de riesgo, diagnóstico y tratamiento quirúrgico / Breast cancer related lymphedema: risk factors, diagnosis and surgical treatment

Resumen El linfedema asociado al cáncer de mama es una de las complicaciones más subestimadas y debilitantes del tratamiento de esta entidad. Ocurre como resultado de la interrupción del flujo linfático en asociación a otros factores. La incidencia varía dependiendo del tipo tratamiento recibido, existiendo mayor riesgo en los casos en los que se realiza mastectomía total, disección axilar, radioterapia, y en los pacientes en los cuales los ganglios están positivos para cáncer, hubo una mayor cantidad de linfonodos resecados, se utilizaron taxanos o padecen de obesidad. El diagnóstico clínico y a través de técnicas de imágenes es fundamental para evaluar el estado funcional del sistema linfático. Los objetivos principales en el manejo del linfedema son limitar la morbilidad del paciente, mejorar la funcionalidad y la calidad de vida. Existen procedimientos que buscan prevenir el desarrollo del linfedema asociado al cáncer de mama. Una vez establecido, el tratamiento puede ser conservador y quirúrgico. El tratamiento quirúrgico incluye procedimientos fisiológicos (reconstructivos) y resectivos. El éxito depende de una buena selección de los pacientes y la realización de un tratamiento individualizado. A continuación, se presenta una revisión en cuanto a la incidencia, factores de riesgo, estrategias diagnósticas y técnicas quirúrgicas con énfasis en el tratamiento microquirúrgico.

Breast cancer related lymphedema is one of the most underestimated and debilitating complications of the treatment of this entity. Occurs as result of the interruption of the lymphatic flow in association with other factors. The incidence varies depending on the type of treatment received; being a higher risk in cases in which total mastectomy, axillary dissection, radiotherapy are performed; and in patients in whom the lymph nodes are positive for cancer, there was a greater number of harvested lymph nodes, taxanes were used or in obese patients. Clinical diagnosis and imaging techniques are essential to assess the functional status of the lymphatic system. The main objectives in the management of lymphedema are to limit patient morbidity, improve functionality and quality of life. There are procedures that seek to prevent the development of breast cancer related lymphedema. Once established, the treatment can be conservative and surgical. Surgical treatment includes physiological (reconstructive) and excisional procedures. Success depends on a good selection of patients and the performance of an individualized treatment. The following is a review regarding the incidence, risk factors, diagnostic strategies and surgical techniques with emphasis on microsurgical treatment.

Linfedema: actualización en el diagnóstico y tratamiento quirúrgico / Lymphedema: update in diagnosis and surgical treatment

El linfedema es la acumulación de fluido rico en proteínas en el intersticio, secundario a anomalías en el sistema de transporte linfático. En países desarrollados se relaciona más frecuentemente al tratamiento quirúrgico del cáncer. El diagnóstico clínico y a través de técnicas de imágenes es fundamental para evaluar el estado funcional del sistema linfático. Los objetivos principales en el manejo del linfedema son limitar la morbilidad del paciente, mejorar la funcionalidad y la calidad de vida. El tratamiento quirúrgico es una alternativa cuando las medidas conservadoras ya no son suficientes. Existen procedimientos que buscan prevenir el desarrollo del linfedema y técnicas que incluye procedimientos fisiológicos (reconstructivos) y resectivos que se utilizan cuando el linfedema ya está establecido. El éxito depende de una buena elección de los pacientes y la realización de un tratamiento individualizado. A continuación se presenta una revisión en cuanto a las últimas estrategias diagnósticas y actualización en las técnicas quirúrgicas con énfasis en el tratamiento microquirúrgico.

Lymphedema is the accumulation of protein-rich fluid in the interstitium, secondary to abnormalities in the lymphatic transport system. In developed countries it is more often related to surgical treatment of cancer. The clinical diagnosis and through imaging techniques is fundamental to evaluate the functional status of the lymphatic system. The main objectives in managing lymphedema are to limit patient morbidity, improve functionality and quality of life. Surgical treatment is an option when conservative measures are no longer sufficient. There are procedures that seek to prevent the development of lymphedema, and techniques that include physiological (reconstructive) and resective procedures that are used when lymphedema is already established. Success depends on a good selection of patients and the completion of an individualized treatment. The following is a review article of the latest diagnostic strategies and update in surgical techniques with emphasis on microsurgical treatment.

Clinical progress of microsurgical management for lymphedema / 中国修复重建外科杂志

Objective: To review the clinical progress of microsurgical management for lymphedema. Methods: The literature on microsurgical treatment for lymphedema at home and abroad in recent years was reviewed and analyzed. Results: At present, conservative treatment is the main treatment for lymphedema, which has limited effectiveness only for early stages of lymphedema; and it is not curative and demands patient compliance. In contrast, microsurgical approaches can solve the problems in the prevention or management of lymphedema and showed promising results, such as lymphatic-venous anastomosis (LVA), vascularized lymph node transfer (VLNT), and other lymphatic reconstructions. Conclusion: Microsurgical approaches like LVA and VLNT have been broadly used in recent years, the effectiveness and safety have been proved. But the evidence of long-term randomized controlled studies is still required to establish standard treatment practices.

Research progress of vascularized lymph node transfer for extremity lymphedema / 中国修复重建外科杂志

Objective: To review the current progress of clinical and experimental research of vascularized lymph node transfer for lymphedema. Methods: The domestic and abroad literature about vascularized lymph node transfer in treatment of lymphedema was reviewed and analyzed. Results: Experimental studies in animal model indicate that vascularized lymph node transfer can improve lymph node survival and show a promising effectiveness in reducing lymphedema. "Lymphatic wick" and "lymph pump" were the two main hypotheses proposed to explain the potential functional mechanism of vascularized lymph node transfer in treatment of lymphedema. Improvement in lymphedema symptoms are reported in most of the clinical trials, but the level of evidence to advocate this procedure in the treatment of lymphedema remains low because of the small number of the cases and problems in their methodologies. Conclusion: Based on current evidence, vascularized lymph node transfer seems to be a promising treatment for lymphedema, but long-term well-designed studies are required to further explore the effectiveness of this procedure.

Recent technical progress of flap surgery / 中华整形外科杂志

The flap surgery is evolving towards precision and digitization. With clinical application of the true perforator flap technique, the supermicrosurgery, the real-time imaging of flap perfusion technique and vascularized lymph node flap technique, better reconstructive outcome with minimal damage of donor site has been achieved.