VSD: Negative Pressure Closed Drainage is a new technique pioneered by Dr. Fleischman of ULM University, Germany, in 1992, and gradually emerging in China in recent years.VSD consists of polyethylene alcohol-hydrated seaweed salt foam (commonly known as “artificial skin” which is soft and elastic, and contains a multilaterally perforated drainage tube) and a semi-permeable adhesive membrane. (commonly known as “artificial skin”, which is soft and flexible and contains a porous drainage tube) and a semi-permeable adhesive film. After the wound is covered by VSD and the film is closed, then continuous negative pressure suction can realize: (1) timely closure of the wound, changing open wounds to closed wounds (2) through negative pressure suction to remove the toxic decomposition products produced by the damaged tissues in a timely manner to reduce the body’s reabsorption of toxic substances (3) to maximize the prevention of infection of pathogens (4) a full range of negative pressure to promote local blood circulation, stimulating and accelerating the growth of the granulation tissue (5) Thorough antibiotic rinsing at any time (6) No need for dressing change, reducing patient’s pain (7) Protection of the implant area after implantation. Therefore, VSD has the incomparable advantages of traditional treatment in dealing with all kinds of open (infected) wounds, tissue defects, burns, decubitus ulcers, ulcers and so on. Example: Patient, female, 85 years old, suffering from Alzheimer’s disease, bedridden due to hip fracture, resulting in sacrococcygeal decubitus ulcer. At the time of hospitalization, the decubitus ulcer in the sacrococcygeal area was 10X15cm in size, deep to the bone surface, with a large amount of purulent secretion, and the bacterial culture was Pseudomonas aeruginosa (Pseudomonas aeruginosa). After admission, he underwent decubitus ulcer excision and VSD closed drainage. The following picture shows the trauma after the first VSD operation. (Unfortunately, I forgot to take a preoperative picture). It shows that the trauma is growing granulomatous and is significantly fresher. The wound was enlarged again and the VSD was closed and drained. The following picture shows the postoperative wound. It shows the growth of granulation and freshness of the wound. A few days after the dressing change, free skin grafting was performed. For economic reasons, VSD was not added, and as a result, some of the skin fragments floated and were inactivated due to heavy exudation. After dressing change the trauma was obliterated. As shown in the figure below: The application of VSD technique for the treatment of decubitus ulcers is less risky compared to flap grafting. Because if the flap transplantation fails, the original wound may not be eliminated, and more wounds in the skin donor area may occur, which is really worse for the patient. However, the VSD method is more time-consuming and the hospitalization time is longer. And VSD is more expensive, a piece of 10X15cm VSD need to sell 3100 yuan, for bedsore patients may need to use 3-4 times, just buy VSD will be tens of thousands of dollars. Hopefully, it will be cheaper in the future and can benefit more patients.