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Plast Aesthet Res 2016;3:248. 10.20517/2347-9264.2015.101 © 2016 Plastic and Aesthetic Research
Open Access Original Article

Use of negative pressure wound therapy in pediatric oncology patients: a single-center review of 66 patients

1Department of Surgery, Division of Plastic Surgery, Baylor Scott and White Healthcare, Texas A&M School of Medicine, Temple, TX 76513, USA.

2Division of Plastic, Reconstructive and Hand Surgery, Baptist Cancer Center, Memphis, TN 38120, USA.

3University of Tennessee Health Science Center, School of Medicine, Memphis, TN 38163, USA.

Correspondence Address: Dr. Jon P. Ver Halen, Department of Surgery, Division of Plastic Surgery, Baylor Scott and White Healthcare, Texas A&M School of Medicine, 1016 Crescent Drive Belton, Temple, TX 76513, USA. E-mail:

  • Dr. Jon P. Ver Halen is currently an Associate Professor with the Texas A&M School of Medicine, Department of Surgery. He is also Associate Program Director of the Plastic Surgery Residency, and Program Director of the Microvascular Surgery Fellowship.

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Aim: Negative pressure wound therapy (NPWT) has been studied extensively in adult patients, but less is known about pediatric patients. This study assesses the efficacy and safety of vacuum-assisted closure® usage in pediatric oncology patients.

Methods: Retrospective data on all patients treated with NPWT at a single pediatric oncology hospital were collected between April 2005 and September 2013. Details on pre-treatment factors, treatment course, and post-treatment events were collected. No control group was available for comparison.

Results: Sixty-six patients were identified, with a total of 74 wounds. Median age at the time of NPWT application was 13 years (range, 10 months-23 years). Median duration of treatment was 21 days (range, 3-236 days). NPWT therapy was started with continuous high negative pressures (125 mmHg) in most patients. Sixty-nine percent of patients had their wounds healed without intervention, and 20% of patients required surgical closure. NPWT was discontinued temporarily secondary to skin maceration or cellulitis in 12% of patients. NPWT was used in a number of non-standard clinical situations, including primarily-closed incisional wound NPWT and bridging NPWT through adjuvant chemotherapy.

Conclusion: In pediatric oncology patients, NPWT is safe, effective, and well-tolerated. Although this study is retrospective in nature, and there was no control group for comparison, these data are important for clinicians to guide therapy as device monitoring agencies and payors increasingly require outcomes data for the approval of therapeutic decisions.


Negative pressure wound therapy (NPWT) has fundamentally changed complex wound management, such that it is now considered an independent rung on the “reconstructive ladder.”[1-4] NPWT therapy has been studied extensively in adults, where it has found applications in chronic wounds, open abdominal wounds, and open fractures, amongst others.[5-8] Recent studies have showed that outcomes in the pediatric population are often equivalent to those reported in adults.[9-12] However, no large studies have examined the use of NPWT in the pediatric oncology population, a group which is unique given the frequent utilization of extensive surgery, systemic chemotherapy, radiotherapy, and (in some cases) stem cell transplantation.[13] In this study, we reviewed our single-center experience with NPWT in pediatric oncology patients and reported our outcomes with respect to efficacy, safety, and technical innovation in wound treatment.


Records of patients treated with NPWT at a single center between April 2005 and September 2013 were reviewed. Approval for the study was obtained from the institutional review board of the respective institution. Patient data included demographics, diagnosis, and duration of NPWT, adjunctive treatment, wound size, definitive wound closure technique, complications, chemotherapy, radiation, recurrent disease, and general outcomes.

All NPWT systems used in this study were designed and manufactured by Kinetic Concepts, Incorporated (KCI Inc, San Antonio, TX, USA). The device includes a vacuum-assisted cosure® (VAC) dressing (wound VAC® dressing), consisting of a polyurethane or polyvinyl sponge placed directly over a wound site. The sponge is then sealed with plastic tape and connected to a negative pressure device with a tube. The vacuum pump in the device creates a sub-atmospheric negative pressure in the wound bed, and it is reported to reduce edema, increase local blood supply, increase the formation of granulation tissue, reduce bacterial colonization, improve patient tolerance, and accelerate wound healing overall.[14,15]


Between April 2005 and September 2013, a total of 66 patients were identified for study inclusion. Seven patients required multiple wound VAC, or a wound VAC at multiple times, for a total number of 74 wounds treated with NPWT. Patient and wound characteristics at baseline are reported in Table 1. The median patient age was 13 years, with a range of 10 months to 18 years. Our sample had 35 males to 31 females. The median body mass index (BMI) was 21.5 kg/m2 (range, 14.1-45.9 kg/m2). Only 5 patients had serum albumin less than 3.4 mg/L, and only 1 patient had serum albumin less than 3.1 mg/L. There was no association between serum albumin level and adverse events (P > 0.05). Wounds were primary wounds in 62 patients, and recurrent in 4 patients.

Table 1

Patient and wound characteristics at baseline (n = 66)

Patient characteristics
Age at NPWT application, median (range)13 years (10 months-18 years)
Gender31 females; 35 males
Body mass index (kg/m2), median (range)21.5 (14.1-45.9)
Serum albumin (g/dL), median (range)4.2 (2.5-4.8)
Patients using NPWT during chemotherapy22
Patients receiving chemotherapy56
Patients receiving radiation24
Wound size (cm2), median (range)27 (4-250)
Time until wound closure (days), median (range)21 (3-236)
Duration of wound NPWT (days), median (range)21 (3-236)

Patient primary diagnoses are reported in Table 2. Fifty-six patients received chemotherapy at some point during their cancer therapy, and 22 of these patients had wounds requiring NPWT during chemotherapy. In these latter patients, NPWT was used for a range of 21-206 days. Twenty-four patients received radiation therapy at some point during their cancer treatment. Of these patients, the radiation dose was administered to the site of the wound in all but nine cases.

Table 2

Pathologic diagnosis of primary tumors

Primary diseaseNumber of patients
Ewing sarcoma6
Acute lymphoblastic leukemia6
Acute myeloid leukemia2
Adrenocortical carcinoma1
Dermatofibrosarcoma protuberans1
Epitheloid sarcoma1
Hodgkins lymphoma1
Malignant fibrous histiocytoma1
Malignant peripeheral nerve sheath tumor2
Soft tissue high grade polyphenotypic sarcoma1
Sickle cell anemia1
Synovial sarcoma5
Malignant teratoma of the sacral bone1
Thalamic glioblastoma1

NPWT was used in total of 66 patients. Three patients had NPWT therapy twice: once before reconstruction and again for skin graft fixation. One patient had NPWT applied three times: first, for local wound care; second, for fixation of integra dermal regeneration template (Integra Life Sciences, Plainsborough, New Jersey, USA); and third, for skin graft fixation. Three patients had two separate wounds, requiring two separate wound VACs. In total, NPWT was used 74 times in 66 patients.

Wound etiology is presented in Table 3. Fifty-six patients had surgically-created wounds. Two patients had traumatic wounds. Two patients had wound dehiscence requiring NPWT. One patient had pressure ulcer. There was one case of sickle-cell induced avascular skin necrosis. One case of cutaneous acute lymphoblastic leukemia resulted in full thickness skin loss. One patient with osteosarcoma who was treated with methotrexate developed a case of purpura fulminans that required debridement and NPWT. One wound resulted after debridement of a cutaneous infection. There was one wound that resulted after an extravasation injury. Three patients had amputations that required NPWT; 2 of them for open wounds and 1 for an incisional wound. NPWT was applied immediately in the event of surgically-created wounds, and it was delayed for a range of 1 to 21 days in the remaining patients.

Table 3

Wound etiology in patients (n = 66)

Wound etiologyNumber of patients
Wound dehiscence2
Skin infection1
Pressure sore1
Sickle-cell/vascular disease1
Cutaneous acute lymphoblastic leukemia1
Purpura fulminans1
Extravasation injury1

NPWT indication is shown on Table 4. NPWT was used for local wound care in 44 patients, skin graft and/or integra fixation in 10 patients, local wound care in the setting of brachytherapy in one patient, and incisional support in 11 patients. With respect to incisional NPWT, 4 patients had previous external beam radiation therapy, and 2 patients had previous brachytherapy. There were 10 extremity wounds and 1 scalp wound that utilized incisional NPWT. All wounds were healed without complications at the time incisional NPWT was discontinued (5-7 days postoperatively).

Table 4

Indication for negative pressure wound therapy (n = 66)

IndicationNumber of patients
Local wound care44
Skin graft/Integra fixation11
Support of primarily-closed incision10

Table 5 shows the anatomic distribution of wound NPWT usage. NPWT was used in the head and head/neck in three patients, trunk in 13 patients, upper extremity in 10 patients, and lower extremity in 40 patients. Eleven wounds had bone exposure in the wound bed; four had exposure of fascia; seven had tendon exposure; three had nerve exposure; and two patients had exposure of their endoprostheses. The remaining had either skin, fat, or muscle exposed.

Table 5

Anatomic location of wounds, and exposed structures at wound base (wounds = 74)

Number of wounds
Wound location
 Head and neck4
 Upper extremity10
 Lower extremity47
Exposed structures
 Skin (incisional wound VAC)11
 Muscle or fat36

The respective wounds ultimately healed in 60 patients [Table 6]. Wounds healed by secondary intention in 47 patients, skin grafting in four patients, adjacent tissue transfer in three patients, split-thickness skin graft (STSG) and Integra in two patients, local flap in one patient, and delayed primary closure in three patients. Wounds failed to heal in 2 patients who had recurrence of their wound at last follow up, in 1 patient who died of necrotizing fasciitis, in 1 patient who died of primary disease, and in 2 of the 3 patients who required amputation. No patients required free flap to reconstruct their wound.

Table 6

Outcomes of negative pressure wound therapy utilization (n = 66)

Number of patients
Mechanism of closure in healed wounds(n = 60)
 Secondary intention47
 Skin graft/Integra6
 Local flap/tissue closure4
 Delayed primary closure3
Characteristics of non-healing wounds(n = 6)
 Wound recurrence2
 Died of primary disease before wound closure1
 Died of necrotizing fasciitis1

At the time of their last follow-ups, 2 patients had died of their primary disease. One patient died secondary to necrotizing fasciitis. One patient had a below-knee amputation secondary to intractable pain, unrelated to his wound. Three patients had above-knee amputations: 1 secondary to local tumor recurrence; 1 due to a failed free flap reconstruction; and 1 from implant failure.

NPWT was applied with a negative pressure of 125 mmHg, except in 1 scalp case in which the negative pressure was set to 75 mmHg. NPWT was used under continuous pressure except in 1 patient where intermittent pressure was used for a cheek wound. The regular black Granu-foam sponge was used in all but 11 cases. Silver-impregnated Granu-foam sponges were used in 7 cases, and 1 case used the White-foam sponge for an open abdominal wound. The average wound size was 36 cm2 (median, 27 cm2; range, 4-250 cm2). The average number of days to achieve wound closure was 39 days, with a median of 21 days and a range of 3 to 236 days.

In general, patients tolerated NPWT with minimal morbidity. One patient who had NPWT for fixation of STSG developed cellulitis under the sponge secondary to methicillin-resistant Staphylococcus aureus. The cellulitis resolved after the discontinuation of the NPWT and healed completely with no further interventions. Seven patients developed maceration of the skin under the wound VAC dressing, requiring temporary discontinuation of NPWT.


Wound issues are not uncommon in the oncology population due to various factors including radiation, chemotherapy, and decreased immunity.[16-19] NPWT has showed some promising results in the pediatric population.[12-15] Our study assesses the safety and efficacy of NPWT therapy in the pediatric oncology population.

NPWT therapy offers several advantages over traditional wound care. Because dressing changes are only done every two to three days, the often painful dressing change experience is less traumatic, simplifying wound care for both the patient and the provider. Drainage of the wound is contained in a transparent container, and wound leakage is far less likely compared to traditional wound care. These factors help improve compliance and reduce patient anxiety regarding wound care.

In this study, most wounds were managed successfully with NPWT. The wound VAC was applied in all our patients without any problems regardless of the patient's age or the location or size of the wound.

Of the total 66 patients treated with NPWT, 69% of the wounds healed completely with no intervention, and 20% required delayed surgical closure. NPWT was discontinued temporarily secondary to skin maceration or cellulitis in 12% of patients. Wound care was converted to traditional saline wetted gauze in those cases, and all wounds subsequently healed completely without surgical intervention. No problems of retained sponge material, device malfunction, or inability to apply the wound NPWT were reported in our study. Complications were seen in 12% of the patient population.

The indications for NPWT have expanded since its first introduction. We started using NPWT directly on primarily-closed incisions in the setting of previous radiation therapy, reoperation, and chronic steroid use in 2009. Initially described in patients with multiple comorbidities, this technique was met with moderate success and has resulted in the introduction of NPWT systems specifically tailored for this use [Figures 1-3].[20-22] In our study, no complications were reported with incisional wound NPWT. All wounds using the incisional NPWT system healed without issue, although use of the incisional NPWT was not randomized to establish a control group for comparison. However, from historical controls of similar patients, we would have expected a complication rate of 6-22%. In addition to wound care, our study shared the same favorable outcomes of previous studies in using vacuum assisted fixation of STSG and Integra with acceptable complication rates.[23]

Figure 1. Right leg after limb-salvage procedure, with gastrocnemius muscle flap and skin graft coverage of central wound

Figure 2. Surgical site with wound vacuum-assisted closure in place

Figure 3. Surgical site after wound has healed

Another novel use of NPWT in our system involved using the VAC in patients with wound healing issues while undergoing concurrent chemotherapy. Specifically with regard to limb salvage patients, one of our protocols involved the use of bevacizumab (an angiogenesis inhibitor) and concurrent high-dose methotrexate. Post-surgical wound dehiscence or delayed wound healing in this population was not uncommon. Given the attendant myelosuppression in these patients, surgical wound closure frequently needed to be delayed. In such patients, wound care was often performed using NPWT for a prolonged period of time, with excellent results.

NPWT offers a safe and reliable alternative to traditional wound care. Our findings are equivalent to similar reports in other pediatric populations.[6,10] Two cases did have severe complications in our series. In the first case the patient ultimately required a hemipelvectomy for definitive oncologic treatment; however, this complication was related to the nature of the wound rather than use of NPWT. The only wound-related mortality in our cohort was secondary to a case of Streptococcus pyogenes necrotizing fascitiis. The patient was a 9-year-old girl with acute lymphoblastic leukemia, status post allogeneic bone marrow transplant, and she was being treated with methotrexate and prednisone. She developed necrotizing fasciitis and underwent two rounds of surgical debridement of an abdominal wound before NPWT. She expired 3 days later. There was no evidence that the infection was due to the use of NPWT in this case. There was a reported case[24] of necrotizing fasciitis in an adult paraplegic patient which occurred after NPWT for treatment of a debrided grade IV ischial pressure ulcer. The authors believed that the patient’s underlying osteomyelitis and his prolonged wound VAC dressing change regimen (the dressing sponge was only changed every 5 days rather than the recommended 2 to 3 days regimen) may have contributed to the development of necrotizing fasciitis. There is no evidence in the literature that supports a correlation between the use of NPWT and an increased risk for the development of necrotizing fascitiis.

One of the limitations of our study is its retrospective nature. Because this study was observational, we lacked a control group to compare NPWT to traditional wound management in pediatric oncology patients. Another weakness is the lack of patients below six months of age; this patient population may require different approaches and different settings for NPWT.[25] Another issue which was not addressed in our study is the use of continuous versus intermittent negative pressure.[26] All our patients except one had continuous NPWT. There is experimental evidence that intermittent vacuum therapy promotes more granulation tissue formation than continuous therapy.[27] Regardless of these limitations, our study suggests that the use of NPWT is a viable and safe tool in this pediatric oncology population.

In conclusion, we have found NPWT to be a valuable tool for the management of open wounds, fixation of skin grafts, and as a dressing for incision sites in children who are undergoing chemotherapy or radiation therapy. NPWT complications in this patient population are acceptable and easily manageable.

Financial support and sponsorship


Conflicts of interest

There are no conflicts of interest.


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Cite This Article

OAE Style

Wong S, Eid A, Southerland W, Ver Halen JP. Use of negative pressure wound therapy in pediatric oncology patients: a single-center review of 66 patients. Plast Aesthet Res 2016;3:248-53.

AMA Style

Wong S, Eid A, Southerland W, Ver Halen JP. Use of negative pressure wound therapy in pediatric oncology patients: a single-center review of 66 patients. Plastic and Aesthetic Research. 2016; 3:248-53.

Chicago/Turabian Style

Wong, Stacy, Anas Eid, Warren Southerland, Jon P. Ver Halen. 2016. "Use of negative pressure wound therapy in pediatric oncology patients: a single-center review of 66 patients" Plastic and Aesthetic Research. 3: 248-53.

ACS Style

Wong, S.; Eid A.; Southerland W.; Ver Halen JP. Use of negative pressure wound therapy in pediatric oncology patients: a single-center review of 66 patients. Plast. Aesthet. Res. 20163, 248-53.




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