Use of controlled negative pressure in management of phlegmon caused by fulminant complication of pressure wound: A case report

Effects of vacuum sealing drainage to improve the therapeutic effect in patients with orthopedic trauma and to reduce post-operative infection and lower-limb deep venous thrombosis

The present study investigated the effects of vacuum sealing drainage (VSD) to improve the therapeutic efficacy in patients with orthopedic trauma (OT) and reduce post-operative infection and lower-limb deep venous thrombosis (DVT) through a retrospective analysis. A total of 76 patients with OT treated at our hospital were selected for observation. The patients were divided into the control group (CG; n=37) and the experimental group (EG; n=39) according to the treatment administered. For patients in the CG, routine dressing changes were applied. Patients in the EG underwent VSD treatment. The dressing change frequency, time between the first and second operation, hospital stay, treatment efficacy, wound healing time, interleukin-6 (IL-6) serum level, tumor necrosis factor-α (TNF-α) serum level, incidence of post-operative infection and incidence of lower-limb DVT were compared between the two groups. The dressing change frequency in the EG was less than that in the CG. The time between the first and second operation and hospital stay were shorter in the EG than in the CG (P<0.05). The total effective rate in the EG was 97.44%, which was higher than that in the CG (78.38%; P<0.05). The wound healing time in the EG was 1.72±0.73 weeks and shorter than that in the CG (2.23±0.85 weeks; P<0.05). With the progression of treatment, the serum IL-6 and TNF-α levels decreased in the two groups, but the levels in the EG were lower than those in the CG (P<0.05). The incidence of post-operative infection and lower-limb venous thrombosis in the EG were 7.69 and 0.00%, respectively, and lower than those in the CG (27.03 and 13.01%, respectively; P<0.05). In the treatment of OT, VSD may reduce the dressing change frequency, shorten the operation time and hospital stay, accelerate wound healing and reduce post-operative infection and lower-limb DVT. Thus, the VSD treatment method is worthy of promotion and implementation in clinic.

Negative Pressure Wound Therapy in Pyoderma Gangrenosum Treatment

Patient: Male, 83-year-old

Final Diagnosis: Pyoderma gangrenosum

Symptoms: Infection

Medication: —

Clinical Procedure: Negative pressure wound therapy

Specialty: Dermatology • Geriatrics • Palliative Medicine • Surgery

Original hardware-software method for treatment of infected superficial wounds in a liquid environment

Aim ― development of a hardware-software system allowing to treat infected superficial wounds in a liquid environment, designed to provide continuous flow of various irrigation solutions (depending on the wound healing stage) under airtight and water-resistant film tightly fixed over the wound. Methods ― in this experiment wound irrigation with antiseptic, oxidizing antiseptic and osmotically active agents with subsequent exposure and drainage was performed using the novel device. Efficacy of the proposed hardware-software system was evaluated by comparing it with standard wound dressings by planimetry and wound biopsy results. Results ― according to study results the novel device reduces the time of wound healing by 26.1%, while the time to wound proliferation is 1.7 times shorter when compared with standard wound dressings. Conclusion ― the proposed method stimulates wound repair and limits purulent inflammation in infected wounds. Using the novel method of superficial wound management helps to prevent the development of re-infection and suppuration.