scholarly journals Timer switch to convert suction apparatus for negative pressure wound therapy application

2014 ◽  
Vol 47 (03) ◽  
pp. 412-417
Author(s):  
Surath Amarnath ◽  
Mettu Rami Reddy ◽  
Chayam Hanumantha Rao ◽  
Harsha Vardan Surath
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Healing Rate ◽  
Chronic Wounds ◽  
Open Fractures ◽  
Wound Therapy ◽  
Electronic Timer ◽  
The Cost ◽  
Dressing Materials ◽  
Wound Healing Rate

ABSTRACT Background: Negative pressure wound therapy (NPWT) is an established modality in the treatment of chronic wounds, open fractures, and post-operative wound problems. This method has not been widely used due to the high cost of equipment and consumables. This study demonstrates an indigenously developed apparatus which gives comparable results at a fraction of the cost. Readily available materials are used for the air-tight dressing. Materials and Methods: Equipment consists of suction apparatus with adjustable pressure valve set to a pressure 125-150 mmHg. An electronic timer switch with a sequential working time of 5 min and a standby time of 3 min provides the required intermittent negative pressure. Readily available materials such as polyvinyl alcohol sponge, suction drains and steridrapes were used to provide an air tight wound cover. Results: A total of 90 cases underwent 262 NPWT applications from 2009 to 2014. This series, comprised of 30 open fractures, 21 post-operative and 39 chronic wounds. The wound healing rate in our study was comparable to other published studies using NPWT. Conclusion: The addition of electronic timer switch will convert a suction apparatus into NPWT machine, and the results are equally effective compared to more expensive counter parts. The use of indigenous dressing materials reduces the cost significantly.

scholarly journals Conference Proceedings of the Third International Vivano Conference held from 19th – 21st March 2014 in Nuremberg, Germany

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Vivano Conference
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Chronic Wounds ◽  
Cost Benefit ◽  
Wound Therapy ◽  
Fourth Degree ◽  
Surgical Interventions ◽  
The Third ◽  
Cost Benefit Ratio ◽  
The Cost

During a two-day conference international speakers presented their experiences with negative pressure wound therapy in chronic wounds but also in cases of third- and fourth-degree burns, in complex surgical interventions of the abdominal region, in open fractures as well as in thoracic and cardiac surgery. The this year’s conference focused on questions whether negative pressure wound therapy (NPWT) resulted in wound healing more often and more quickly than standard wound therapy, for which indications can NPWT be used and how should the cost-benefit ratio be evaluated.

scholarly journals “Low Cost” Negative Pressure Wound Therapy for Acute and Chronic Wounds: A Case Series

2021 ◽  
pp. 236-243
Author(s):  
Nazim Sifi ◽  
Ryad Bouguenna ◽  
Lamia Kaci
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Chronic Wounds ◽  
Low Cost ◽  
Case Series ◽  
Length Of Hospital Stay ◽  
Wound Therapy ◽  
Care Protocol ◽  
Rapid Formation ◽  
The Cost

Negative pressure wound therapy (NPWT) is an alternative to standard treatment of acute wounds (such as traumatic or postoperative wounds) but also in that of chronic wounds (such as ulcers or stage 3 and 4 pressure ulcers). With cellular, extracellular effects and bacterial clearance, it leads to the rapid formation of healthy budding granulation tissue, which provides wound bed for directed healing or secondary coverage by skin graft or flap. However, the exorbitant cost of VAC (vacuum-assisted closure) devices for our limited resources health facilities and their unavailability led us to opt for a “low cost” solution using wall suction and disposable materials readily available in all surgical departments. We present the technique used in our department and its results through a series of 3 cases with both acute and chronic lesions evolving in septic environment and where NPWT enabled us to ensure a genuine care protocol until healing while reducing the cost of therapy, the number of dressings and the length of hospital stay.

The effects and use of negative pressure wound therapy – a set of case reports

2020 ◽  
Vol 99 (4) ◽  
pp. 183-188
Keyword(s):  
Wound Healing ◽  
High Risk ◽  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Chronic Wounds ◽  
Wide Spectrum ◽  
Case Reports ◽  
Modern Medicine ◽  
Wound Therapy ◽  
Basic Set

Modern medicine offers a wide spectrum of wound healing resources for acute or chronic wounds. Negative pressure wound therapy (NPWT) is a very effective method, allowing complicated defects and wounds to heal. The basic set is usually provided with various special accessories to facilitate the use and support safe application of NPWT to high-risk tissue. Selected case reports are presented herein to document the special use and combinations of materials in negative pressure wound therapy.

High bacterial load in negative pressure wound therapy (NPWT) foams used in the treatment of chronic wounds

2013 ◽  
Vol 21 (5) ◽  
pp. 677-681 ◽  
Author(s):  
Erlangga Yusuf ◽  
Xavier Jordan ◽  
Martin Clauss ◽  
Olivier Borens ◽  
Mark Mäder ◽  
...  
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Chronic Wounds ◽  
Bacterial Load ◽  
Wound Therapy ◽  
High Bacterial Load

Negative pressure wound therapy versus conventional dressing for open fractures in lower extremity trauma

2020 ◽  
Vol 102-B (7) ◽  
pp. 912-917 ◽  
Author(s):  
Muhammad Tahir ◽  
Ejaz A. Chaudhry ◽  
Faridullah K. Zimri ◽  
Nadeem Ahmed ◽  
Saeed A. Shaikh ◽  
...  
Keyword(s):  
Wound Infection ◽  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Mean Difference ◽  
Open Fractures ◽  
Life Assessment ◽  
Wound Therapy ◽  
Significant Difference ◽  
Gauze Dressing ◽  
Secondary Outcomes

Aims It has been generally accepted that open fractures require early skeletal stabilization and soft-tissue reconstruction. Traditionally, a standard gauze dressing was applied to open wounds. There has been a recent shift in this paradigm towards negative pressure wound therapy (NPWT). The aim of this study was to compare the clinical outcomes in patients with open tibial fractures receiving standard dressing versus NPWT. Methods This multicentre randomized controlled trial was approved by the ethical review board of a public sector tertiary care institute. Wounds were graded using Gustilo-Anderson (GA) classification, and patients with GA-II to III-C were included in the study. To be eligible, the patient had to present within 72 hours of the injury. The primary outcome of the study was patient-reported Disability Rating Index (DRI) at 12 months. Secondary outcomes included quality of life assessment using 12-Item Short-Form Health Survey questionnaire (SF-12), wound infection rates at six weeks and nonunion rates at 12 months. Logistic regression analysis and independent-samples t-test were applied for secondary outcomes. Analyses of primary and secondary outcomes were performed using SPSS v. 22.0.1 and p-values of < 0.05 were considered significant. Results A total of 486 patients were randomized between January 2016 and December 2018. Overall 206 (49.04%) patients underwent NPWT, while 214 (50.95%) patients were allocated to the standard dressing group. There was no statistically significant difference in DRI at 12 months between NPWT and standard dressing groups (mean difference 0.5; 95% confidence interval (CI) -0.08 to 1.1; p = 0.581). Regarding SF-12 scores at 12 months follow-up, there was no significant difference at any point from injury until 12 months (mean difference 1.4; 95% CI 0.7 to 1.9; p = 0.781). The 30-day deep infection rate was slightly higher in the standard gauze dressing group. The non-union odds were also comparable (odds ratio (OR) 0.90, 95% CI 0.56 to 1.45; p = 0.685). Conclusion Our study concludes that NPWT therapy does not confer benefit over standard dressing technique for open fractures. The DRI, SF-12 scores, wound infection, and nonunion rates were analogous in both study groups. We suggest surgeons continue to use cheaper and more readily available standard dressings. Cite this article: Bone Joint J 2020;102-B(7):912–917.

scholarly journals Cost-effectiveness of negative-pressure wound therapy in adults with severe open fractures of the lower limb: evidence from the WOLLF randomized controlled trial

2019 ◽  
Vol 101-B (11) ◽  
pp. 1392-1401 ◽  
Author(s):  
S. Petrou ◽  
B. Parker ◽  
J. Masters ◽  
J. Achten ◽  
J. Bruce ◽  
...  
Keyword(s):  
Economic Evaluation ◽  
Cost Effectiveness ◽  
Lower Limb ◽  
Negative Pressure Wound Therapy ◽  
Cost Effective ◽  
Open Fractures ◽  
Wound Management ◽  
Wound Therapy ◽  
Subgroup Analyses ◽  
The Cost

Aims The aim of this study was to estimate the cost-effectiveness of negative-pressure wound therapy (NPWT) in comparison with standard wound management after initial surgical wound debridement in adults with severe open fractures of the lower limb. Patients and Methods An economic evaluation was conducted from the perspective of the United Kingdom NHS and Personal Social Services, based on evidence from the 460 participants in the Wound Management of Open Lower Limb Fractures (WOLLF) trial. Economic outcomes were collected prospectively over the 12-month follow-up period using trial case report forms and participant-completed questionnaires. Bivariate regression of costs (given in £, 2014 to 2015 prices) and quality-adjusted life-years (QALYs), with multiple imputation of missing data, was conducted to estimate the incremental cost per QALY gained associated with NPWT dressings. Sensitivity and subgroup analyses were undertaken to assess the impacts of uncertainty and heterogeneity, respectively, surrounding aspects of the economic evaluation. Results The base case analysis produced an incremental cost-effectiveness ratio of £267 910 per QALY gained, reflecting higher costs on average (£678; 95% confidence interval (CI) -£1082 to £2438) and only marginally higher QALYS (0.002; 95% CI -0.054 to 0.059) in the NPWT group. The probability that NPWT is cost-effective in this patient population did not exceed 27% regardless of the value of the cost-effectiveness threshold. This result remained robust to several sensitivity and subgroup analyses. Conclusion This trial-based economic evaluation suggests that NPWT is unlikely to be a cost-effective strategy for improving outcomes in adult patients with severe open fractures of the lower limb. Cite this article: Bone Joint J 2019;101-B:1392–1401.

The Effectiveness of Negative Pressure Wound Therapy Versus Conventional Dressing in the Treatment of Open Fractures: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 34 (5) ◽  
pp. 223-230 ◽  
Author(s):  
Marc C. Grant-Freemantle ◽  
Éanna J. Ryan ◽  
Sean O. Flynn ◽  
Darren P. Moloney ◽  
Michael A. Kelly ◽  
...  
Keyword(s):  
Systematic Review ◽  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Meta Analysis ◽  
Open Fractures ◽  
Wound Therapy

scholarly journals Negative pressure wound therapy as an adjunct in healing of chronic wounds

2013 ◽  
Vol 12 (4) ◽  
pp. 436-442 ◽  
Author(s):  
Vijay Langer ◽  
Prem S Bhandari ◽  
Satyamoorthy Rajagopalan ◽  
Mrinal K Mukherjee
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Chronic Wounds ◽  
Wound Therapy
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