Use of vacuum-assisted closure (VAC) therapy in treating lymphatic complications after vascular procedures: New approach for lymphoceles

A Systematic Review and Meta-analysis of Techniques for Management of Postoperative Lymphatic Leaks After Groin Surgery

PURPOSE

Plastic surgeons are often consulted to manage postoperative groin lymphatic leaks that may lead to serious sequelae if not promptly treated. Because there are no standardized guidelines for best treatment practices, this systematic review and meta-analysis evaluates the outcomes of multiple management modalities to ultimately guide decision making for surgeons.

METHODS

Literature surrounding lymphatic leaks in the groin was reviewed from PubMED, MEDLINE, EMBASE, and the Cochrane Library from January 1, 2000, to December 1, 2020 according to Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines. The inciting procedure, postoperative lymphatic complication, used management, and days to resolution were recorded. Pairwise comparisons using the Wilcoxon rank sum test with Bonferroni continuity correction were used to determine which treatment modalities differed significantly and accounted for multiple hypothesis testing.

RESULTS

A total of 1468 total studies were initially found, which narrowed to 267 unique articles after duplicates were removed. Twelve articles ultimately met the inclusion criteria and were included in the data analysis. There were 264 groin complications, of which 217 were initially treated with conservative management, 81 with a minimally invasive procedure, and 125 with surgery. More than 95% of all cases had an inciting procedure of a vascular nature.For vascular surgery-induced lymphatic leak treated by minimally invasive and surgical techniques, a significantly higher number of cases resolved compared with those treated conservatively (100% and 96.7% compared with 29.5%, respectively, P < 0.05). However, there were no significant differences in the proportion that resolved between the minimally invasive and surgical cases (P = 0.11). Vascular cases that were only managed with surgery had significantly shorter days to resolution compared with cases that first attempted conservative management (P < 0.001).

CONCLUSIONS

Both minimally invasive and surgical options have increased odds of resolution and lower failure rates compared with conservative management alone. The odds of resolution were higher when treated with more invasive procedures compared with conservative-only management, but the mean days to resolution was longer. This meta-analysis depicts successful resolution with procedural management and supports an initial trial of minimally invasive techniques.

Effective combination of lymphatico-venous anastomosis and negative pressure wound therapy for lymphocyst: A Case Study

Lymphorrhea and lymphocysts are complications that occur after lymph node dissection or biopsy and are difficult to treat. Conventional treatments for lymphocysts are not always effective. For instance, lymphatico‐venous anastomosis has a limited treatment efficacy when the cyst wall is thickened, and negative pressure wound therapy is limited by the installation site and longer treatment times. To overcome these individual shortcomings, we aimed to assess whether a combination of both interventions would be effective. In this study, we report the application of a lymphatico‐venous anastomosis combined with negative pressure wound therapy for treating bilateral inguinal lymph nodes and pelvic lymph node dissection following treatment of vaginal cancer. Short‐term improvements were observed with no recurrence of lymphocysts at 1‐year follow‐up.

Lymphatic Leaks of the Thigh and Inguinal Region: Combined Plastic Surgery Approaches for an Effective Treatment Algorithm

BACKGROUND

Surgical procedures interfering with the draining nodes in the inguinal region carry the intrinsic risk of lymphatic complications. Lesions of the inguinal lymphatic network can lead to lymphocele or lymphocutaneous fistulas and can eventually be associated to limb lymphedema with consequent high morbidity.

OBJECTIVES

This article describes a new surgical algorithm based on wound properties to properly address lymphatic complications of the inguinal area. Based on our experience, surgical solutions ranged from selective lymphatic vessel ligation to microsurgical lymphatic fistula treatment and free tissue transfer.

METHODS

Fourteen consecutive patients underwent surgery in our department following failed attempts to address persistent lymphatic leaks. Patient characteristics such as smoking, previous surgeries, comorbidities, and wound properties were considered. Identification of the leak was performed using blue patent dye and indocyanine green fluorescence. Surgical reconstruction occurred, according to our algorithm.

RESULTS

Lymphatic leaks were visualized in 11 of 14 patients. Direct closure of the wound after leak ligation could be performed in 4 of 14 patients. Multilymphatic into vein anastomosis was performed in 3 of 14 patients, and the remaining patients benefited from flap surgery based on the wound defects. All 14 patients had successful outcomes (100%) with early drain removal (average, 6 [SD, 6] days) and definitive wound healing 2 weeks postoperatively. After a mean follow-up of 12 (SD, 2.9) months, no clinical infection, lymphatic complication, or wound breakdown occurred. One patient had a partial recurrence that did not require surgical intervention.

CONCLUSIONS

A stepwise approach, combining lymphatic surgery principles and plastic surgery flap techniques, can lead to an effective treatment algorithm where surgical options are wound tailored to guarantee the best functional outcomes.

Treatment of lymphocele with negative pressure wound therapy post inguinal mass excision: A case-report

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Safe and effective approach for treating inguinal lymphocele.

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Excision with ligation of lymphatic vessels.

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Negative pressure wound therapy.

Introduction

A lymphocele is defined as an atypical collection of lymphatic fluid not bordered by distinct epithelial lining, which develops in anatomic compartments. Inguinal lymphocele is a common complication of surgery in the inguinal region, with an incidence ranging from 1 to 87 %. This report summarizes the management of an inguinal lymphocele post excision of an inguinal mass.

Presentation of case

Herein, we present a case in which an inguinal lymphocele developed four months post excision of an inguinal mass, which was later diagnosed as lymphoma and treated with iliac chain radiation therapy. The conservative treatment with lymphocele drainage, compression dressing and prophylactic antibiotic was initially implemented. As the patient did not respond to conservative treatment, the surgical strategy consisted of excision of lymphocele associated with lymphatic ducts ligation. Negative pressure wound therapy completed the treatment.

Discussion

Non-surgical treatment of lymphocele developing from lymphatic injure during groin dissection is not rarely unsuccessful. Surgical options include lymphocele excision with either ligation of the lymphatic ducts or lymphatic-venous shunts between afferent lymphatics and the collateral branch of great saphenous vein. Vacuum-assisted closure therapy assists the wound healing process by increasing blood flow, removing inhibiting factors of wound healing and decreasing the bacterial count.

Conclusion

Inguinal lymphocele that is not reabsorbed or does not resolve with conservative treatment should be surgically treated. Lymphocele excision with ligation of lymphatic vessels, followed by negative pressure wound therapy appears to be a safe and effective approach.

Treatment of Lymphatic Complications after Common Femoral Artery Endarterectomy

BACKGROUND

This study analyzes the outcome of lymphatic complications after a standard vascular procedure.

METHODS

This is a retrospective study including patients who had a lymphatic complication after endarterectomy and patch of the common femoral artery in our clinic between March 2007 and June 2018. Therapy of choice was selected according to wound situation and amount of lymphatic liquid. If signs of a wound infection occurred, a surgical therapy was performed; in all other cases a nonsurgical treatment (conservative treatment, radiotherapy) was chosen.

RESULTS

We performed 977 index operations, a lymphatic complication occurred in 112 cases (11.5%). In 69 cases the lymphatic complication presented as lymphatic fistula (Group 1), in 43 cases as lymphorrhea from the wound (Group 2). Nonsurgical treatment was done in 66 cases (Group 1: 76.8% vs. Group 2: 30.2%; P < 0.000), and a surgical treatment was necessary in 46 cases (Group 1: 23.2% vs. Group 2: 69.8%; P < 0.000). Indication for surgery was Szilagyi 1 infection in 25 cases, Szilagyi 2 infection in 11 cases, and Szilagyi 3 infection in 10 cases. Patients with Szilagyi 1 infections received negative wound pressure therapy (NWPT). A muscle flap in combination with an NWPT was performed in patients with Szilagyi 2 infections. In Szilagyi 3 infections, the patch was replaced; additionally, a muscle flap and an NWPT were performed. The median hospital stay was 13 days in the nonsurgical group and 22.5 days in the surgical group. We had no bleeding complications and no reinfection during follow-up. The median observation period was 23.0 months. Age ≥80 years was associated with an increased risk for lymphatic complications.

CONCLUSIONS

The therapy of lymphatic complications should be done in accordance with clinical symptoms. A nonsurgical treatment is often sufficient. However, in cases of a wound infection different surgical treatments are necessary.

EWMA Document: Negative Pressure Wound Therapy

1. Introduction Since its introduction in clinical practice in the early 1990's negative pressure wounds therapy (NPWT) has become widely used in the management of complex wounds in both inpatient and outpatient care.¹ NPWT has been described as a effective treatment for wounds of many different aetiologies^2,3 and suggested as a gold standard for treatment of wounds such as open abdominal wounds,^4-6 dehisced sternal wounds following cardiac surgery^7,8 and as a valuable agent in complex non-healing wounds.^9,10 Increasingly, NPWT is being applied in the primary and home-care setting, where it is described as having the potential to improve the efficacy of wound management and help reduce the reliance on hospital-based care.¹¹ While the potential of NPWT is promising and the clinical use of the treatment is widespread, highlevel evidence of its effectiveness and economic benefits remain sparse.^12-14 The ongoing controversy regarding high-level evidence in wound care in general is well known. There is a consensus that clinical practice should be evidence-based, which can be difficult to achieve due to confusion about the value of the various approaches to wound management; however, we have to rely on the best available evidence. The need to review wound strategies and treatments in order to reduce the burden of care in an efficient way is urgent. If patients at risk of delayed wound healing are identified earlier and aggressive interventions are taken before the wound deteriorates and complications occur, both patient morbidity and health-care costs can be significantly reduced. There is further a fundamental confusion over the best way to evaluate the effectiveness of interventions in this complex patient population. This is illustrated by reviews of the value of various treatment strategies for non-healing wounds, which have highlighted methodological inconsistencies in primary research. This situation is confounded by differences in the advice given by regulatory and reimbursement bodies in various countries regarding both study design and the ways in which results are interpreted. In response to this confusion, the European Wound Management Association (EWMA) has been publishing a number of interdisciplinary documents^15-19 with the intention of highlighting: The nature and extent of the problem for wound management: from the clinical perspective as well as that of care givers and the patients Evidence-based practice as an integration of clinical expertise with the best available clinical evidence from systematic research The nature and extent of the problem for wound management: from the policy maker and healthcare system perspectives The controversy regarding the value of various approaches to wound management and care is illustrated by the case of NPWT, synonymous with topical negative pressure or vacuum therapy and cited as branded VAC (vacuum-assisted closure) therapy. This is a mode of therapy used to encourage wound healing. It is used as a primary treatment of chronic wounds, in complex acute wounds and as an adjunct for temporary closure and wound bed preparation preceding surgical procedures such as skin grafts and flap surgery. Aim An increasing number of papers on the effect of NPWT are being published. However, due to the low evidence level the treatment remains controversial from the policy maker and health-care system's points of view-particularly with regard to evidence-based medicine. In response EWMA has established an interdisciplinary working group to describe the present knowledge with regard to NPWT and provide overview of its implications for organisation of care, documentation, communication, patient safety, and health economic aspects. These goals will be achieved by the following: Present the rational and scientific support for each delivered statement Uncover controversies and issues related to the use of NPWT in wound management Implications of implementing NPWT as a treatment strategy in the health-care system Provide information and offer perspectives of NPWT from the viewpoints of health-care staff, policy makers, politicians, industry, patients and hospital administrators who are indirectly or directly involved in wound management.

Negative-Pressure Wound Therapy for Managing Complicated Wounds at Extracorporeal Membrane Oxygenation Sites

OBJECTIVE

To evaluate the effectiveness of negative-pressure wound therapy (NPWT) for management of wound complications at extracorporeal membrane oxygenation (ECMO) removal sites.

METHODS

The authors retrospectively reviewed patients who underwent NPWT at ECMO removal sites followed by the development of wound complications including skin necrosis, lymphorrhea, and femoral vessel exposure. A nonadhesive bacteria-binding mesh was used as a wound contact layer of NPWT application. Patient characteristics and clinical outcomes were evaluated.

RESULTS

Nine patients underwent NPWT for complicated wounds at ECMO sites. The mean age of patients was 49.2 years (range, 14-64 years). All patients exhibited wound complications with lymphorrhea and skin necrosis. Seven of nine patients had wound cultures that were positive for microorganisms, but culture conversion to negative was achieved after NPWT application for a mean period of 21.2 days (range, 12-30 days). Lymphorrhea was successfully managed, and formation of fresh granulation tissue was observed in all patients. Wound healing either by primary closure, skin graft, or secondary healing was achieved without recurrence of wound complications. There were no cases of femoral vessel injury or aneurysm during NPWT application.

CONCLUSIONS

Negative-pressure wound therapy appears to be a safe and effective treatment option in the management of complicated wounds at ECMO sites.

Treatment of postoperative high-volume lymphatic complications using isosulfan blue

BACKGROUND

Lymphocele (LC) and lymphocutaneous fistula (LF) are infrequent but serious complications that occur when lymphatics are disrupted during a vascular procedure. Conservative management with bed rest, extremity elevation, aspiration, and pressure dressing is often ineffective. This study evaluated the effectiveness of isosulfan blue (ISB) to identify disrupted lymphatics for ligation.

METHODS

Between 1998 and 2016, there were 33 lymphatic complications treated with ISB-directed ligation in 32 patients. The patients' records were retrospectively reviewed, recording demographics, comorbid conditions, index vascular operation causing the lymphatic complication, details of the procedure done to treat the lymphatic complication, and outcomes. In each patient, between 1 and 3 mL of ISB was injected in the subcutaneous tissue of the interdigital web space. The wound associated with the lymphatic complication was opened. The appearance of dye within the wound identified disrupted lymphatic ducts for suture ligation.

RESULTS

The lymphatic complications were either LC (11 [33%]) or LF (22 [66%]) and were associated with femoral vein harvest (9), great saphenous vein harvest (8), exposure of femoral arteries (13), creation of an upper extremity fistula (1), repeated femoral access for coronary angiography, or excision of an LC (1). Most patients were male (66%), and the mean age was 56.8 ± 13.1 years. In comparing patients with LF and LC, the diagnosis of LF was made earlier (13.8 ± 7.0 days vs 23.4 ± 14.1 days; P = .02), and treatment occurred sooner for LF than for LC (22.1 ± 8.1 days vs 48.8 ± 51.2 days; P = .02). In all patients, ISB identified one or more disrupted lymphatics. The appearance of the ISB dye within the wound after injection was rapid, often within 5 to 10 minutes. After ligation of the lymphatics, most wounds were closed primarily (26 [79%]), but a muscle flap (5 [15%]), negative pressure dressing (1 [3%]), and dressing changes (1 [3%]) were also used. Wound healing was achieved in all patients on average 32.5 ± 21.5 days after lymphatic ligation.

CONCLUSIONS

The current series is one of the largest reported experiences using ISB to identify injured lymphatics responsible for LC or LF. Lymphatic complications after a vascular procedure usually occur within 3 weeks of the index vascular procedure, with LF being identified and treated earlier than LC. ISB injection rapidly identifies disrupted extremity lymphatics. Ligation of these lymphatics results in reliable resolution of the lymphatic complication.

Lymphaticovenous Anastomoses for Lymphedema Complicated by Severe Lymphorrhea Following Resection of Soft-Tissue Sarcomas of the Adductor Compartment: A Report of Two Cases

CASE

Lymphedema and lymphorrhea are major causes of wound complications after the resection of soft-tissue sarcomas in the adductor compartment of the thigh. We report 2 cases of successful treatment of lymphedema and lymphorrhea, which had been refractory to nonoperative treatment, with use of lymphaticovenous anastomosis (LVA) and intraoperative indocyanine green lymphography after the resection of a sarcoma in the adductor compartment.

CONCLUSION

These 2 cases highlight that LVA can be a useful and minimally invasive alternative to myocutaneous flaps for the treatment of wound complications caused by lymphedema and lymphorrhea after surgery for soft-tissue sarcomas in the adductor compartment of the thigh.

Bilayered negative-pressure wound therapy preventing leg incision morbidity in coronary artery bypass graft patients: A randomized controlled trial

BACKGROUNDS

The harvesting of great saphenous veins for coronary artery bypass graft (CABG) patients may result in significant complications, including lymphorrhagia, lymphoedema, incision infection, wound dehiscence, and skin flap necrosis. We investigated the function of a self-designed bilayered negative pressure wound therapy (b-NPWT) for reducing the above-mentioned complications using a clinical randomized controlled trial.

METHODS

A single-center, pilot randomized controlled trial was conducted. From December 2013 to March 2014, a total of 72 coronary heart disease patients (48 men and 24 women) received CABG therapy, with great saphenous veins were selected as grafts. Patients were equally randomized into a treatment and a control group. After the harvesting of the great saphenous veins and direct closure of the wound with sutures, b-NPWT was used for the thigh incision in the treatment group for 5 days (treatment thigh). Traditional surgical pads were applied to both the shank incisions of the treatment group patients (treatment shank) and the entire incisions of the control group (control thigh, control shank). Postoperative complications were recorded and statistically analyzed based on outcomes of thigh treatment, shank treatment, thigh control, and shank control groups.

RESULTS

The incidence rates of early complications, such as lymphorrhagia, lymphoedema, infection, wound dehiscence, and skin flap necrosis, of the vascular donor site in the thigh treatment group was significantly lower than those in the 3 other groups.

CONCLUSIONS

The self-designed b-NPWT can effectively reduce postoperative complications, such as lymphedema, incision infection, wound dehiscence, and skin flap necrosis, in CABG patients who underwent great saphenous veins harvesting.

TRIAL REGISTRATION

ClinicalTrials.gov. The unique registration number is NCT02010996.

Evaluation of Lymphorrhea and Incidence of Lymphoceles: 4DryField® PH in Radical Retropubic Prostatectomy

Purpose. To investigate impact of polysaccharide hemostat 4DryField PH (4DF) applied on lymph node dissection area after radical retropubic prostatectomy (RRP) on lymphorrhea and lymphocele (LC) formation. Methods. 104 consecutive patients underwent RRP, 51 without 4DF treatment (CT-group) and 53 with 4DF treatment (4DF-group). Groups were comparable (age, risk profile, and lymph node numbers). Postoperative drain loss (PDL) and development of early and late LC were analyzed (mean follow-up at 7 months: 100%). Results. PDL was 452.5 ± 634.2 mL without and 308.5 ± 214 mL with 4DF treatment. PDL > 1000 mL only occurred in CT-group (5/51). Overall, 45 LC (26 in CT- versus 19 in the 4DF-group) were diagnosed. At day 8, LC were equally distributed between groups. Incidence of late LC, however, was twice in controls (16/51) versus 4DF-patients (8/53). Symptomatic LC (4 in untreated patients, 2 in 4DF-patients) were treated with percutaneous drainage (duration: 45 days in untreated patients versus 12 days in 4DF-patients). Conclusion. Application of 4DF on lymph node dissection areas lessened total drain loss and significantly lowered high volume drain loss. Furthermore, 4DF reduced frequency of late lymphoceles and lymphoceles requiring treatment by half, as well as duration of percutaneous drainage by more than two-thirds.

Ultrasound-guided scraping of fibrous capsule plus bilayered negative pressure wound therapy for treatment of refractory postmastectomy seroma

INTRODUCTION

Seroma is a frequent complication of breast cancer surgery. Treatment of prolonged or refractory seroma remains a clinical challenge. This study aimed to evaluate the efficacy of a novel approach for refractory seroma treatment; the method combines minimally invasive scraping for fibrous capsule removal and self-designed bilayered negative pressure wound therapy (b-NPWT) to achieve favorable wound healing.

METHODS

Twenty-four patients with refractory seroma received ultrasound-guided scraping of fibrous capsule around the refractory seroma, and then a bilayered NPWT system simultaneously allowing for fluid drainage and dynamic topical pressure was manually implemented immediately. The time of NPWT application and wound healing was recorded, and pathological examination was conducted for the removed fibrous tissues.

RESULTS

Removal of the fibrous capsule was securely achieved by minimally invasive scraping through a 1.5-cm incision guided with ultrasound scanning. All refractory seromas in the 24 patients healed uneventfully after an average application of NPWT for 7.2±3.3 days without recurrence during the 3-12 months of follow-up. Biopsy of the removed fibrous tissue demonstrated that single-layered endothelial cells stained with CD31, D2-40, and Ki-67 existed both on the surface of and inside the fibrous tissue.

CONCLUSIONS

The combination of fibrous capsule removal by ultrasound-guided scraping with successive bilayered NPWT therapy is effective and minimally invasive for promoting wound healing of refractory postmastectomy seroma.

A case of continuous negative pressure wound therapy for abdominal infected lymphocele after kidney transplantation

Lymphocele is a common complication after kidney transplantation. Although superinfection is a rare event, it generates a difficult management problem; generally, open surgical drainage is the preferred method of treatment but it may lead to complicated postoperative course and prolonged healing time. Negative pressure wound therapy showed promising outcomes in various surgical disciplines and settings. We present a case of an abdominal infected lymphocele after kidney transplantation managed with open surgery and negative pressure wound therapy.

Lymphatic complications after vascular interventions

Introduction

Lymphorrhea due to classical and mini-invasive surgical interventions on femoral and popliteal arteries is a serious hindrance to patient treatment. Depending on the experience of a particular center, the incidence and frequency of this type of complication may constitute a serious clinical problem. While the level of lymphorrhea intensity and its duration result in certain foreseeable consequences, their treatment can be a time-consuming and multistep procedure.

Aim

To compare different types of vascular interventions with lymphorrhea occurrence.

Material and methods

The authors conducted a retrospective analysis of lymphatic complications based on the material collected between 2005 and 2012 at the Department of Vascular and Endovascular Surgery of the Military Institute of Medicine in Warsaw and in the Department of Interventional Cardiology and Angiology of the Institute of Cardiology in Anin, Warsaw, in 2009–2012.

Results

Maintaining due thoroughness when dissecting tissues and treating the cutting line in this area with ligatures and tissue puncture are the most reliable methods of minimizing the risk of lymphatic leakage after surgical procedures performed in a classical way. The lymphatic complication under analysis is far less likely to occur when procedures are performed as planned and an endovascular technique is used – statistical significance p < 0.05. Minimally invasive and fully percutaneous procedures performed via needle puncture, including the use of the fascial closure technique to close the femoral artery, eliminate the likelihood of the occurrence of this vascular complication – statistical significance was found with p value less than 0.05.

Conclusions

We concluded that in every case by minimizing the vascular approach we protected the patient against lymphatic complications.

Therapeutic efficacy of vacuum-assisted-closure therapy in the treatment of lymphatic complications following peripheral vascular interventions and surgeries

Objectives

Lymphatic complications, lymphocele and lymphorrhea being the leading, are generally encountered after vascular interventions and surgeries. The present study aimed to evaluate the outcomes of vacuum-assisted-closure (VAC) therapy, which we frequently prefer as the first-choice treatment for such complications.

Materials and methods

Among patients undergoing peripheral vascular intervention or surgery between January 2008 and February 2012, the medical files of 21 patients who received VAC therapy or other treatment due to symptomatic lymphatic complications were retrospectively analyzed and the results were discussed.

Results

Group I consisted of 10 patients (three with lymphocele and seven with lymphorrhea) who underwent VAC therapy as the first-choice treatment, Group II consisted of 11 patients of which 7 patients received various therapies before VAC therapy and 4 patients received other treatments alone. The patients who received VAC therapy as the primary therapy demonstrated more rapid wound healing, early drainage control, and shorter hospital stay. The mean hospital medical cost was €1038 (range, €739–1826) for the patients who primarily underwent VAC therapy; it was calculated to be €2137 (range, €1610–3130) for the other patients ( p = 0.001).

Conclusion

In addition to its safety and good clinical outcomes, VAC therapy also has economic advantages and should be the primary method for the treatment of lymphatic complications.

Negative pressure wound therapy for inguinal lymphatic complications in critically ill patients

Purpose

In this study, we investigated the therapeutic potential of regulated negative pressure vacuum-assisted wound therapy for inguinal lymphatic complications in critically ill, liver transplant recipients.

Methods

The great saphenous vein was harvested for hepatic vein reconstruction during liver transplantation in 599 living-donor liver transplant recipients. Fourteen of the recipients (2.3%) developed postoperative inguinal lymphatic complications and were treated with negative pressure wound therapy, and they were included in this study.

Results

The average total duration of negative pressure wound therapy was 23 days (range, 11 to 42 days). Complete resolution of the lymphatic complications and wound healing were achieved in all 14 patients, 5 of whom were treated in hospital and 9 as outpatients. There was no clinically detectable infection, bleeding or recurrence after an average follow-up of 27 months (range, 7 to 36 months).

Conclusion

Negative pressure wound therapy is an effective, readily-available treatment option that is less invasive than exploration and ligation of leaking lymphatics and provides good control of drainage and rapid wound closure in critically ill patients.

A review of complications associated with the surgical treatment of vulvar cancer

OBJECTIVE

The mainstay of treatment for most vulvar malignancies is surgery to the vulva with lymphadenectomy to the inguino-femoral areas, plus radiotherapy or/and chemotherapy for locally advanced, or recurrent disease. Treatment is associated with significant physical, sexual, and psychological morbidity. The high morbidity rate has resulted in a continuing shift in treatment paradigms that focus on treatments that reduce morbidity without compromising cure rates. This paper reviews the complications associated with contemporary surgical treatment for vulva cancer and discusses preventative strategies.

METHODS

A review of the English literature was undertaken for articles published between 1965 and August 31, 2012 to identify articles that assessed complications resulting from surgery to the vulva or groins in patients with vulva cancer. Two independent researchers selected and qualitatively analyzed the articles using a predetermined protocol.

RESULTS

The heterogeneity of articles and differences in definitions and outcomes made this unsuitable for meta-analysis. Most studies advocated for change in surgical technique to reduce complications associated with inguino-femoral lymphadenectomy and surgery to the vulva, with varying success. The most effective means of preventing complications is by omitting systematic lymph node dissection. This can be achieved safely through sentinel lymph node biopsy. Saphenous vein sparing, VTE prophylaxis, the use of flaps and grafts, and preoperative counseling are additional ways to decrease morbidity.

CONCLUSION

Despite technical advances, complications following surgical treatment for vulva cancer remain high. More research, particularly multi centered randomized controlled trials to improve the quality of evidence and studies that focus on complications as an outcome measure and analyze individual surgeon complication rates, are needed. Measures also need to be standardized throughout the gynecologic oncology community to allow for better comparison between studies.

Update on negative-pressure wound therapy

BACKGROUND

Over the last 15 years, negative-pressure wound therapy has become commonly used for treatment of a wide variety of complex wounds. There are now several systems marketed, and additional products will be available in the near future. Many clinicians have noted a dramatic response when negative-pressure wound therapy technology has been used, prompting a number of scientific investigations related to its mechanism of action and clinical trials determining its efficacy.

METHODS

The peer-reviewed literature within the past 5 years was reviewed, using an evidence-based approach.

RESULTS

Negative-pressure wound therapy works through mechanisms that include fluid removal, drawing the wound together, microdeformation, and moist wound healing. Several randomized clinical trials support the use of negative-pressure wound therapy in certain wound types. Serious complications, including bleeding and infection, have recently been reported by the U.S. Food and Drug Administration in a small number of patients.

CONCLUSIONS

Negative-pressure wound therapy has dramatically changed the way complex wounds are treated. The rapid introduction of this technology has occurred faster than large-scale randomized controlled studies or registry studies have been conducted. Further clinical studies and basic science studies will help surgeons to better understand the evidence and use this technology in the future.

Lymphocutaneous fistulas: pre-therapeutic evaluation by magnetic resonance lymphangiography

OBJECTIVE

Lymphocutaneous fistulas with intractable lymphatic leakage represent a serious clinical condition leading to a severe impairment of quality of life for the affected patients. To date, no adequate diagnostic imaging modality is in existence to allow selection of the correct treatment option. The aim of this study was to perform a pre-therapeutic evaluation of the lymphatic system in patients with lymphocutaneous fistulas by magnetic resonance lymphangiography (MRL).

METHODS

Eight lower extremities in four patients with lymphocutaneous fistulas were examined by MRL. Three locations were examined: first, the lower leg and foot regions; second, the upper leg and the knee region; and third, the pelvic and retroperitoneal regions. A T(1) weighted three-dimensional (3D) spoiled gradient echo and a heavily T(2) weighted 3D turbo spin echo (3D-TSE) sequence were utilised to undertake MRL.

RESULTS

In all four patients (100%), the clinically suspected lymphocutaneous fistulas (groin and forefoot) were exactly delineated by MRL. In two patients (50%) adjacent diffuse lymphangiomatous changes were detected, extending into the upper leg, pelvis, retroperitoneum, abdomen and abdominal walls. In one patient (25%) with primary lymphoedema of the right lower extremity, MRL revealed an aplasia of the lymphatic collectors at the levels of the lower and upper leg. All patients (100%) suffered from an ipsilateral lymphoedema of the lower extremity, whereby in two patients with diffuse lymphangiomatosis the lymphatic vessels were consecutively enlarged up to a diameter of 6 mm.

CONCLUSION

MRL is a safe and accurate imaging modality for a comprehensive evaluation of the lymphatic system in patients suffering from lymphocutaneous fistulas.

Using VAC to facilitate healing of traumatic wounds in patients with chronic lymphoedema

Healing of traumatic injuries in patients with chronic lymphoedema is often delayed. This article describes how topical negative pressure was used to promote healing in two such cases. It also eliminated pain and prevented re-infection.

Polidocanol foam sclerotherapy is a new and effective treatment for post-operative lymphorrhea and lymphocele

BACKGROUND

The formation of post-operative lymphocele and lymphorrhea following lymph node surgery is a potentially serious complication. Until now there has been no consensus on the most effective treatment for these complications. Therefore, the aim of our clinical trial was to compare the use of polidocanol foam sclerotherapy with compression therapy to wound drainage, in the treatment of post-operative lymphoceles.

PATIENTS AND METHODS

Retrospectively we analysed the data of 33 consecutive surgical patients who had developed a post-operative lymphocele between 2004 and 2008. We offered all patients drainage with compression therapy or polidocanol foam sclerotherapy with 1-day compression to treat the post-operative lymphoceles.

RESULTS

Altogether, 12 patients were treated with polidocanol foam sclerotherapy and 21 patients were treated with drainage alone. Secretion volumes declined from initial 50-350 ml/day to 0-20 ml/day at the end of the therapy. Lymphorrhea resolved much quicker (P < 0.0001) in patients treated with polidocanol foam sclerotherapy (median 4 days, mean value 6.4 days) than in those treated with drainage (median 31 days, mean value 30.2 days). None of the patients developed a major complication.

CONCLUSION

Polidocanol foam sclerotherapy is an effective and well-tolerated new treatment for patients with post-operative lymphoceles.

An overview of negative pressure wound therapy for the lower extremity

Since its introduction into the market, negative pressure wound therapy (NPWT), also known as topical negative pressure, has become an important adjuvant therapy for the treatment of many types of wounds. Surgeons and physicians of all subspecialties have adopted NPWT into their practices. NPWT has become a mainstay in the management of lower extremity soft tissue pathology, especially in patients with traumatic, diabetic, postsurgical, and peripheral vascular disease-associated wounds. This article reviews the background, currently understood mechanisms of action, applications, contraindications, reported complications, advantages, criticisms, and techniques in the lower extremity.