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2.
J Med Vasc ; 49(3-4): 135-140, 2024 Sep.
Article in English | MEDLINE | ID: mdl-39278693

ABSTRACT

Upper limb lymphedema after breast cancer treatment including axillary dissection occurs in almost 20% of women. Its treatment consists of complete decongestive physiotherapy based on low-stretch bandage to reduce volume, followed by elastic compression to maintain it. In this article, we will detail recent data on lymphedema risk factors with possible genetic predisposition, prevention (surgical, compression), manual lymphatic drainage, physical activity, weight, advice, and treatments including gene therapy.


Subject(s)
Breast Cancer Lymphedema , Humans , Female , Risk Factors , Breast Cancer Lymphedema/therapy , Breast Cancer Lymphedema/etiology , Breast Cancer Lymphedema/diagnosis , Treatment Outcome , Breast Neoplasms/complications , Breast Neoplasms/therapy , Lymph Node Excision/adverse effects , Manual Lymphatic Drainage , Mastectomy/adverse effects , Genetic Predisposition to Disease , Lymphedema/therapy , Lymphedema/etiology , Genetic Therapy , Exercise
3.
Med Oncol ; 41(10): 245, 2024 Sep 17.
Article in English | MEDLINE | ID: mdl-39289260

ABSTRACT

Cancer-related lymphedema (CRL) lacks internationally accepted definition and diagnostic criteria. The accurate incidence of CRL is therefore a challenge and the condition is likely underreported. Patients treated for cancer can develop CRL as a result of surgery, chemotherapy, and/or radiotherapy, which can lead to considerable psychosocial and physical morbidity, and decreased quality of life. Determining CRL incidence is crucial to inform care access and resource allocation, to best support patients affected by this lifelong condition. This review aimed to provide the latest CRL incidence estimates. Using four core databases (MEDLINE, Embase, Web of Science Core Collection, Cochrane Library), a literature search was performed to capture publications dated between 2015 and 2023. A total of 48 articles (33 prospective studies, 15 systematic reviews) met inclusion criteria, providing a sample size of 234,079 cancer patients. Findings revealed CRL incidence across cancer types varied, reported 2-74% in breast, 8-45% in gynecological and urological, 71-90% in head and neck and 2-29% in melanoma cancers. CRL incidence varied between 3 and 21% in preventative lymphedema surgery patients. Projected increases in cancer incidence and improved survival rates are expected to further escalate CRL incidence. Healthcare systems and professionals alike must therefore prepare to meet the growing needs of CRL patients.


Subject(s)
Lymphedema , Neoplasms , Humans , Lymphedema/epidemiology , Lymphedema/etiology , Incidence , Neoplasms/epidemiology , Neoplasms/complications , Quality of Life , Female
4.
Br J Community Nurs ; 29(9): 438-440, 2024 Sep 02.
Article in English | MEDLINE | ID: mdl-39240801

ABSTRACT

Manual lymphatic drainage is an advanced therapy that enhances the movement of lymph via a gentle form of massage. In this article, Sarah Jane Palmer provides an overview of manual lymphatic drainage as a treatment for lymphoedema, and summarises the latest research in the area.


Subject(s)
Lymphedema , Manual Lymphatic Drainage , Humans , Lymphedema/therapy , Manual Lymphatic Drainage/methods , Massage/methods
5.
Ann Plast Surg ; 93(3S Suppl 2): S132-S135, 2024 Sep 01.
Article in English | MEDLINE | ID: mdl-39230300

ABSTRACT

ABSTRACT: Lymphedema presents diagnostic challenges due to complex symptomatology and multifaceted onset. This literature review synthesizes diagnostic measures ranging from clinical assessments to advanced imaging techniques and emerging technologies. It explores the challenges in early detection and delves into the disparities in access to advanced diagnostic tools, which exacerbate health outcome differences across populations. This review not only provides insights into the effectiveness of current diagnostic modalities but also underscores the necessity for ongoing research and innovation. The goal is to enhance the accuracy, affordability, and accessibility of lymphedema diagnostics. This is crucial for guiding future research directions and for the development of standardized diagnostic protocols that could help mitigate the progression of lymphedema and enhance the quality of life for affected individuals.


Subject(s)
Lymphedema , Humans , Lymphedema/diagnosis
6.
Clin Med Res ; 22(2): 84-96, 2024 Jun.
Article in English | MEDLINE | ID: mdl-39231621

ABSTRACT

Background: Cellulitis is an infection of the skin and the tissues just under the skin. As any disease, cellulitis has various physiological and physical effects that deteriorate a patient's quality of life. Luckily, cellulitis can be treated when dealt with in a timely fashion. Nonetheless, some patients may experience more than one episode of cellulitis or a recurrence of cellulitis that was previously cured. In fact, the occurrences of cellulitis episodes are believed to follow a statistical distribution. The frequency distribution of cellulitis episodes is scrutinized herein. We aimed to investigate the risk factors that affect the number of cellulitis episodes and the pattern of association between cancer types and cellulitis episodes by using analytical and visual approaches.Methods: A statistical approach applying a two-part count regression model was used instead of the traditional one-part count model. Moreover, multiple correspondence analysis was used to support the finding of count regression models.Results: The results of analysis of the sample from the National Cheng Kung University hospital in Taiwan revealed the mean age of patients was 58.7 ± 14.31 years old. The two-part regression model is conceptually and numerically better than the one-part regression model when examining the risks factors that affect cellulitis episodes. Particularly, we found the significant factors based on the best model are cellulitis history ([Formula: see text]; P value < 0.001), clinical stage of cancer (3) ([Formula: see text]; P value < 0.001), no cancer ([Formula: see text]; P value < 0.05), cancer of female reproductive organs ([Formula: see text]; P value < 0.05), breast cancer ([Formula: see text]; P value < 0.05), and age ≥ 60 years ([Formula: see text]; P value < 0.05). Multiple correspondence analysis approach found cancer types (breast and female reproductive organ), age ≥ 60 years, and cellulitis history were more likely to link to excess zero cellulitis or one cellulitis episode.


Subject(s)
Cellulitis , Lymphedema , Humans , Cellulitis/epidemiology , Cellulitis/complications , Risk Factors , Female , Middle Aged , Male , Lymphedema/epidemiology , Aged , Adult , Taiwan/epidemiology , Neoplasms/complications , Neoplasms/epidemiology , Models, Statistical
7.
BMC Urol ; 24(1): 192, 2024 Sep 04.
Article in English | MEDLINE | ID: mdl-39232687

ABSTRACT

BACKGROUND: Patients undergoing treatment for prostate cancer may develop lymphoedema of the midline region. This has a substantial impact on a patient's quality of life and its diagnosis is often delayed or missed. Therefore, the purpose of this study is to compare the characteristics of patients with leg and midline lymphoedema to patients with only leg lymphoedema. METHODS: We retrospectively collected patient-, cancer-, lymphoedema- and lymphoedema treatment-related data of 109 men with lymphoedema after treatment for prostate cancer. First, 42 characteristics were compared between both groups. Second, factors predicting presence of midline lymphoedema were explored by multivariable analyses. RESULTS: The mean age of the patients with lymphoedema was 68 ( ±7) years and mean BMI is 28 (±4) kg/m2. Median duration of lymphoedema before the first consultation was 27 (9;55) months. Based on univariable analyses, patients with leg and midline lymphoedema had more frequently upper leg lymphoedema (89% (31/35) vs. 69% (51/74), p = 0.026), skin fibrosis (34% (12/35) vs. 16% (12/74), p = 0.034) and lymphatic reconstructive surgery (9% (3/35) vs. 0% (0/71), p = 0.020) than patients with only leg lymphoedema. Additionally, patients with leg and midline lymphoedema reported less frequently lower leg lymphoedema (77% (27/35) vs. 95% (70/74), p = 0.007). Based on the multivariable analysis, not having lower leg lymphoedema, skin fibrosis, performing self-bandaging and self-manual lymphatic drainage appear to be predictors for having midline lymphoedema. CONCLUSIONS: If patients with lymphoedema after prostate cancer do not have lower leg lymphoedema, have skin fibrosis, perform self-bandaging or self-manual lymphatic drainage, they possibly have midline lymphoedema.


Subject(s)
Lymphedema , Prostatic Neoplasms , Humans , Male , Lymphedema/etiology , Retrospective Studies , Prostatic Neoplasms/complications , Aged , Middle Aged , Postoperative Complications/etiology , Leg , Prostatectomy/adverse effects
8.
Med Oncol ; 41(10): 241, 2024 Sep 05.
Article in English | MEDLINE | ID: mdl-39235664

ABSTRACT

Lymphedema evaluation entails multifaceted considerations for which options continue to evolve and emerge. This paper provides a critical review of the current status of diagnostic and quantitative measures for lymphedema, from traditional and novel bedside assessment tools for volumetric and fluid assessment, to advanced imaging modalities. Modalities are contrasted with regard to empirical support and feasibility of clinical implementation. The manuscript proposes a grid framework for comparing the ability of each modality to quantify specific lymphedema characteristics, including distribution, dysmorphism, tissue composition and fluid content, lymphatic anatomy and function, metaplasia, clinical symptoms, and quality of life and function. This review additionally applies a similar framework approach to consider how well assessment tools support important clinical needs, including: (1) screening, (2) diagnosis and differential diagnosis, (3) individualization of treatment, and (4) monitoring treatment response. The framework highlights which clinical needs are served by an abundance of assessment tools and identifies others that have problematically few. The framework clarifies which tools have greater or lesser empirical support. The framework is designed to assist stakeholders in selecting appropriate diagnostic and surveillance modalities, gauging levels of confidence when applying tools to specific clinical needs, elucidating overarching patterns of diagnostic and quantitative strengths and weaknesses, and informing future investigation.


Subject(s)
Lymphedema , Humans , Lymphedema/diagnosis , Lymphedema/therapy , Quality of Life
9.
J Aquat Anim Health ; 36(3): 275-280, 2024 Sep.
Article in English | MEDLINE | ID: mdl-39150020

ABSTRACT

OBJECTIVE: A female Rio Cauca caecilian Typhlonectes natans (estimated as between 10 and 18 years of age) housed at the Smithsonian National Zoological Park in Washington, D.C., developed progressive severe coelomic effusion over a 4-week period. The coelomic effusion was diagnosed via radiographs and ultrasound, and a sample of the fluid was obtained for analysis, which revealed a low-protein transudate suggestive of inflammation. As the coelomic effusion progressed, the caecilian became tachypneic, hyporexic, and lethargic. The caecilian was started on antibiotics and a diet trial, but signs continued despite therapy. METHODS: An exploratory celiotomy was performed, which revealed adipose tissue torsion with local lymphangiectasia and a presumptive biliary cyst. Surgical correction was unable to be achieved due to concern for fatal hemorrhage, as the vasculature associated with the torsion was severely distended. Due to the severity of the torsion and associated risks, the caecilian was euthanized intraoperatively and subsequently necropsied for histologic evaluation. RESULT: After reviewing the caecilian's presentation and the progression of disease, it is suspected that the severe coelomic effusion was secondary to lymphangiectasia, which occurred subsequent to the adipose tissue torsion. CONCLUSION: This is the first reported case of adipose tissue torsion and associated clinical disease in an aquatic caecilian and should be a differential for progressive coelomic effusion in this species.


Subject(s)
Adipose Tissue , Animals , Female , Adipose Tissue/pathology , Torsion Abnormality/veterinary , Torsion Abnormality/surgery , Torsion Abnormality/pathology , Lymphedema/veterinary , Lymphedema/pathology , Animals, Zoo
10.
Support Care Cancer ; 32(8): 568, 2024 Aug 02.
Article in English | MEDLINE | ID: mdl-39093326

ABSTRACT

PURPOSE: Early treatment is advised for breast cancer-related arm lymphoedema (BCRL), a common sequelae of breast cancer treatment. Expert guidance recommends two-phase decongestive lymphoedema treatment (DLT), although evidence is lacking for current treatment protocols and UK women are routinely offered self-treatment with hosiery. This systematic review considered evidence regarding treatment of early BCRL, that is, within 12 months of developing BCRL. METHODS: A systematic review of evidence for clinical effectiveness of DLT for women with less than 12-month BCRL duration (early BCRL) was undertaken using the Joanna Briggs Institute (JBI) method. Studies included women with < 12-month or mean < 9-month BCRL duration; some studies reported only one eligible group. The original search was conducted in 2016 and updated in 2018 and 2022. Methodological quality of identified studies was assessed using JBI critical appraisal instruments. Outcomes of interest were extracted with eligible results displayed in narrative and tabular format. Strength of evidence was rated using the GRADE system. RESULTS: Seven trials and three descriptive studies provided weak evidence (grade B) for effectiveness of DLT for early BCRL. Heterogeneous protocols limited comparison of findings. There was no evidence for the most effective treatment or treatment combination or optimal frequency or duration of treatment. CONCLUSION: There is no evidence to justify change in current lymphoedema treatment, whether self-treatment with hosiery (UK) or two-phase DLT (other countries). Further research for the early BCRL population is required. IMPLICATIONS FOR CANCER SURVIVORS: Women with early BCRL require early and effective treatment although this updated review shows there is still no evidence for what that treatment should be.


Subject(s)
Breast Cancer Lymphedema , Humans , Female , Breast Cancer Lymphedema/therapy , Breast Cancer Lymphedema/etiology , Breast Neoplasms/complications , Lymphedema/etiology , Lymphedema/therapy , Arm
11.
Oral Maxillofac Surg Clin North Am ; 36(4): 567-574, 2024 Nov.
Article in English | MEDLINE | ID: mdl-39217087

ABSTRACT

In this study, the authors shed light on the underappreciated realm of head and neck lymphedema (HNL) amid the backdrop of significant advancements in extremity lymphedema management. Despite its prevalence and impact, HNL has long been overlooked, attributed to its subtle symptom presentation and lack of awareness among primary care providers. The study delves into the unique challenges associated with diagnosing and treating HNL, emphasizing the predominance of internal swelling over external manifestations. The authors advocate for the refinement and standardization of outcome measures and the integration of innovative techniques such as indocyanine green lymphography and patient-reported outcomes.


Subject(s)
Lymphedema , Plastic Surgery Procedures , Humans , Lymphedema/surgery , Plastic Surgery Procedures/methods , Lymphography , Head and Neck Neoplasms/surgery , Neck/surgery , Head/surgery
12.
Acta Chir Plast ; 66(2): 50-59, 2024.
Article in English | MEDLINE | ID: mdl-39174339

ABSTRACT

The Department of Plastic and Aesthetic Surgery, St. Anne's University Hospital in Brno, and Faculty of Medicine of Masaryk University, Brno, has a long history of surgical treatment of lymphedema and elephantiasis, which started in 1970s. There were many types of surgeries described and performed at our department - starting with prof. Barinka's radical operation of elephantiasis, then lower limb end-to-side lymphovenous anastomosis pulled through the wall to the great saphenous vein, and genital lymphedema reduction. We call this era "the first period" of surgical lymphedema treatment. "The second period" started in 2016 by using free flaps with lymph nodes or vascularized lymph nodes and using microsurgical techniques of end-to-end, end-to-side and side-to-end lymphovenous anastomoses to the subcutaneous veins of a small calibre, which then drain the lymph into the blood stream. "The third period" started 2 years ago after the visit of prof. Yang from Taiwan - we started to use the method of single stitch end-to-side anastomosis to big subcutaneous veins like the great saphenous vein or the cephalic vein.


Subject(s)
Hospitals, University , Lymphedema , Humans , History, 20th Century , Lymphedema/surgery , History, 21st Century , Surgery, Plastic/history , Plastic Surgery Procedures/methods , Italy , Anastomosis, Surgical
14.
J Plast Reconstr Aesthet Surg ; 96: 199-206, 2024 Sep.
Article in English | MEDLINE | ID: mdl-39096736

ABSTRACT

BACKGROUND: Upper Extremity Lymphedema following oncological breast surgery affects not only the patient's physique, but also the patient's psychological sphere. One of the best known PROMs-based questionnaires for investigating the condition is the LYMPH-Q. The study aimed to perform the Italian translation and cultural adaptation of the LYMPH-Q and to assess if, independently from disease evolution, arm sleeve improves QoL in these patients. MATERIALS AND METHODS: Translation included 4 steps: Forward translation, Back translation, Back translation review and Patient interviews. The questionnaire was administered to 50 female patients older than 18 years of age with UEL who received a prescription for daily use of a compression sheath. A second administration took place 30 days after. Forty-four patients completed the study (Group 1: 26 patients with indication to use compression sleeve who wore it; Group 2:18 patients who despite the prescription did not want to wear it. A descriptive statistical analysis was performed with Prism 9 software. RESULTS: T-tests showed statistical significance for changes in "Symptoms," "Function," "Appearance" and "Psychological" scales. There were no statistically significant changes for "Information scale" in Group 1 and for all scales in Group 2. CONCLUSION: Data from this observational study show that HR-QOL analyzed from the patients' perspective also tends to improve in terms of symptoms, function, appearance, and psychological sphere in patients with BCRL when using a compression sheath. The Lymph-Q has proven to be a valuable ally of the physician attempting to improve treatment approaches for BCRL based not only on scientific evidence but also on PROMs.


Subject(s)
Breast Cancer Lymphedema , Quality of Life , Humans , Female , Italy , Middle Aged , Prospective Studies , Breast Cancer Lymphedema/etiology , Breast Cancer Lymphedema/psychology , Breast Neoplasms/surgery , Breast Neoplasms/complications , Aged , Translations , Patient Reported Outcome Measures , Patient Education as Topic , Adult , Surveys and Questionnaires , Compression Bandages , Lymphedema/etiology , Lymphedema/psychology , Arm , Reproducibility of Results
15.
Surg Oncol ; 56: 102124, 2024 Oct.
Article in English | MEDLINE | ID: mdl-39208532

ABSTRACT

Lymphedema is a chronic and debilitating condition characterized by an abnormal buildup of protein-rich fluid in the interstitial tissue, leading to the development of edema and tissue structural alterations. Breast cancer-related lymphedema (BCRL) remains a significant healthcare burden because it can develop within days and up to 11-years after the surgery. Specifically, axillary lymph node dissection leads to 30-50 % upper limb lymphedema, which involves the accumulation of protein-rich fluid. In this article, we provide a comprehensive/critical overview of post-mastectomy lymphedema, focusing on key aspects as diagnosis, prevention, and treatment methods. Beginning with clinical condition, the article explores the pathophysiology and risk factors associated with post-mastectomy lymphedema. It further delves into various diagnostic modalities available, highlighting the importance of early detection for optimal management of BCRL. We also examine preventive strategies, emphasizing the role of patient education, lifestyle modifications, and proactive measures in reducing the risk of lymphedema development. In terms of treatment, the article covers a wide array of interventions ranging from conservative approaches like manual lymphatic drainage and compression therapy to surgical techniques such as lymph node transfer and lymphaticovenular anastomosis. Thus, through a comprehensive synthesis of current evidence and clinical practices updates, the review aims to guide healthcare professionals in delivering preventive and effective care while improving outcomes for individuals affected by post-mastectomy lymphedema.


Subject(s)
Breast Cancer Lymphedema , Breast Neoplasms , Mastectomy , Humans , Female , Breast Cancer Lymphedema/etiology , Breast Cancer Lymphedema/therapy , Breast Neoplasms/surgery , Breast Neoplasms/complications , Breast Neoplasms/pathology , Mastectomy/adverse effects , Lymphedema/etiology , Lymphedema/therapy , Lymph Node Excision/adverse effects , Risk Factors , Prognosis , Postoperative Complications/etiology
16.
J Pediatr Endocrinol Metab ; 37(9): 789-795, 2024 Sep 25.
Article in English | MEDLINE | ID: mdl-39113198

ABSTRACT

OBJECTIVES: Lymphedema (LD) in Turner syndrome (TS) is a commonly reported comorbidity, though its associations with karyotype and other comorbidities are poorly understood. Characteristics of patients with TS and LD, including correlation with phenotype and karyotype, are described. METHODS: Medical records of patients with TS seen in two pediatric institutions from 2002 to 2020 were retrospectively reviewed. Demographic data (age, presentation onset, clinical features, genetics, LD presence, investigations, treatments) were collected. RESULTS: 393 girls with TS with mean age of 12.5 years (SD: 5.7) were identified. LD was noted in 37 % of patients (n=146). Among the 112 patients with TS and documentation of onset of LD, LD was noted within the first year of life in 78.6 % (n=88). 67.6 % (n=96) of total patients with TS and LD had non-mosaic 45, X karyotype. Frequency of webbed neck was significantly greater in girls with TS and LD compared with girls without LD (58 vs. 7 %, p<0.001). Congenital heart anomalies, hypertension, and renal anomalies were also more common in girls with LD. Nail abnormalities with presence of hypoplastic or dysplastic nails were significantly associated with LD (OR: 6.784, 95 % CI 4.235-11.046). The number of girls reporting presence of LD decreased with age. CONCLUSIONS: LD in TS often occurs within the first year of life, is less prevalent in older children and adolescents, and is significantly associated with 45, X karyotype, presence of webbed neck, nail changes, congenital heart anomalies, and renal anomalies.


Subject(s)
Karyotype , Lymphedema , Phenotype , Turner Syndrome , Humans , Turner Syndrome/complications , Turner Syndrome/genetics , Female , Lymphedema/etiology , Lymphedema/genetics , Lymphedema/epidemiology , Lymphedema/pathology , Child , Retrospective Studies , Adolescent , Prognosis , Child, Preschool , Follow-Up Studies , Infant , Comorbidity
17.
BMC Ophthalmol ; 24(1): 372, 2024 Aug 26.
Article in English | MEDLINE | ID: mdl-39187757

ABSTRACT

BACKGROUND: Microcephaly with or without chorioretinopathy, lymphedema, or mental retardation is a rare autosomal dominant disease caused by mutations in KIF11 which disrupt EG5 protein function, impacting the development and maintenance of retinal and lymphatic structures due to its expression in the retinal photoreceptor cilia. The primary ocular finding in MCLMR is chorioretinopathy. Additional features can include microphthalmia, angle-closure glaucoma, persistent hyperplastic primary vitreous, cataract, pseudo-coloboma, persistent hyaloid artery, and myopic or hypermetropic astigmatism. The appearance of the chorioretinal lesions as white to pinkish, round, non-elevated atrophic areas devoid of blood vessels resembles the lacunae in Aicardy syndrome. Due to the lack of systematic description of the lesions and significant phenotypical variability, there is an impending need for a detailed report of each case. CASE PRESENTATION: A child with microcephaly detected in the third trimester of gestation began her following in the ophthalmology department due to a non-visually significant cataract. Shortly after, she developed nystagmus and large-angle alternating esotropia with cross-fixation. Her fundus initially showed a pallid optic disc and pigmentary changes, developing thereafter retinal lacunae and a retinal fold. Her differential diagnosis accompanied the dynamic changes in her fundus, which included congenital infections, Leber´s Congenital Amaurosis and Aicardy syndrome. At 19 months old, genetic testing identified a heterozygous mutation (c.1159 C > T, p.Arg387*) in the KIF11 gene. The patient underwent bilateral medial rectus muscle recession surgery at 2 years old for persistent esotropia, with significant improvement. Refraction revealed a hyperopic astigmatism in both eyes (+ 0.25 -2.50 × 180 OD and + 0.75 -2.00 × 170 OS). She continues to require right eye patching for 2 hours daily. CONCLUSIONS: This case report expands the phenotypic spectrum of MCLMR by demonstrating a unique combination of retinal features which sheds new light on differential diagnosis from Aicardy syndrome. Our findings emphasize the significant phenotypic variability associated with MCLMR, particularly regarding ocular involvement. This underscores the importance of detailed clinical evaluation and comprehensive reporting of cases to improve our understanding of the disease spectrum and genotype-phenotype correlations.


Subject(s)
Intellectual Disability , Lymphedema , Microcephaly , Humans , Microcephaly/genetics , Microcephaly/diagnosis , Female , Lymphedema/genetics , Lymphedema/diagnosis , Intellectual Disability/genetics , Intellectual Disability/diagnosis , Retinal Diseases/diagnosis , Retinal Diseases/genetics , Retinal Dysplasia , Kinesins , Facies
18.
J Plast Reconstr Aesthet Surg ; 97: 200-211, 2024 Oct.
Article in English | MEDLINE | ID: mdl-39168030

ABSTRACT

BACKGROUND: Lymphedema microsurgery is an emerging treatment modality, with dissimilar long-term outcomes. One of the main technical challenges in lymphatic microsurgery is the identification and availability of suitable donor vessels for anastomosis. Tissue engineering using biomaterials has demonstrated promise in addressing vessel quality issues in other fields, but its application in microsurgery is still limited. METHODS: Decellularized cellulose tubes were developed and bioengineered by decellularizing stems of Taraxacum-Ruderalia. The microscopic structure, mechanical properties, and residual DNA content of the cellulose tubes were evaluated. Human and murine skin fibroblasts and dermal lymphatic endothelial cells were isolated and cultured for recellularization studies. Biocompatibility, proliferative capacity, and ex-vivo endothelialization of the cellulose tubes were assessed as potential interposition grafts. Finally, the engineered cellulose tubes were assessed as interposing xenografts for lymphovenous anastomoses (LVA) in an ex-vivo swine limb model. RESULTS: The decellularized cellulose tubes exhibited a suitable microscopic structure, mechanical properties, and low residual DNA content. The tubes showed adequate biocompatibility, supported cell proliferation, and facilitated spontaneous ex-vivo endothelialization of lymphatic endothelial cells. In the swine limb model, LVA using the engineered cellulose tubes was successfully performed. CONCLUSION: This translational study presents the use of decellularized cellulose tubes as an adjunct for micro and supermicrosurgical reconstruction. The developed tubes demonstrated favorable structural, mechanical, and biocompatible properties, making them a potential candidate for improving long-term outcomes in lymphedema surgical treatment. The next translational step would be trialing the obtained tubes in a microsurgical in-vivo model.


Subject(s)
Anastomosis, Surgical , Cellulose , Feasibility Studies , Lymphatic Vessels , Lymphedema , Microsurgery , Tissue Engineering , Animals , Tissue Engineering/methods , Swine , Lymphatic Vessels/surgery , Lymphedema/surgery , Microsurgery/methods , Humans , Mice , Endothelial Cells , Tissue Scaffolds
19.
Mech Ageing Dev ; 221: 111975, 2024 Oct.
Article in English | MEDLINE | ID: mdl-39089499

ABSTRACT

Lymphatic aging represented by cellular and functional changes, is involved in increased geriatric disorders, but the intersection between aging and lymphatic modulation is less clear. Lymphatic vessels play an essential role in maintaining tissue fluid homeostasis, regulating immune function, and promoting macromolecular transport. Lymphangiogenesis and lymphatic remodeling following cellular senescence and organ deterioration are crosslinked with the progression of some lymphatic-associated diseases, e.g., atherosclerosis, inflammation, lymphoedema, and cancer. Age-related detrimental tissue changes may occur in lymphatic vessels with diverse etiologies, and gradually shift towards chronic low-grade inflammation, so-called inflammaging, and lead to decreased immune response. The investigation of the relationship between advanced age and organ deterioration is becoming an area of rapidly increasing significance in lymphatic biology and medicine. Here we highlight the emerging importance of lymphangiogenesis and lymphatic remodeling in the regulation of aging-related pathological processes, which will help to find new avenues for effective intervention to promote healthy aging.


Subject(s)
Aging , Lymphangiogenesis , Lymphatic Vessels , Humans , Lymphangiogenesis/physiology , Aging/physiology , Aging/metabolism , Aging/pathology , Lymphatic Vessels/metabolism , Lymphatic Vessels/pathology , Lymphatic Vessels/physiopathology , Animals , Inflammation/metabolism , Inflammation/pathology , Neoplasms/metabolism , Neoplasms/pathology , Neoplasms/physiopathology , Cellular Senescence/physiology , Lymphedema/metabolism , Lymphedema/pathology , Lymphedema/physiopathology
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