Spider Bite Wound Care and Review of Traditional and Advanced Treatment Options
Background: Approaches to chronic wound care are worlds apart: In developing nations, the care of chronic wounds often involves traditional management with local products (eg, honey, boiled potato peels, aloe vera gel, banana leaves); whereas in developed nations, more expensive and technologically advanced products are available (eg, wound vacuum, saline wound chamber, hyperbaric oxygen therapy, antibacterial foam). The cost for wound care plays a significant role in total health care costs, and that cost is expected to rise dramatically.
Case Presentation: A healthy, 60-year-old man presented after being bitten by a spider 6 days earlier. He was treated and prescribed clindamycin 300 mg 4 times daily for 14 days. Despite treatment, the wound continued to enlarge, and the patient showed symptoms of septicemia. The patient was admitted to the hospital and remained for 3 days. On discharge the patient was given a prescription for doxycycline 100 mg twice a day for 10 days and instructed to use iodoform gauze to pack the wound during daily dressing changes. However, the gauze was ineffective. The patient’s dressing was switched to an antibacterial foam dressing impregnated with gentian violet and methylene blue.
Conclusions: There is a disparity in available wound care product availability. Modern products may yield faster healing times with fewer adverse effects than traditional products. Products used by local healers can produce satisfactory results when more modern products are unavailable and at a fraction of the cost.
Aloe vera. First recorded by the Egyptians and Greeks, aloe vera gel has been used for centuries in many cultures for a variety of ailments, particularly burns and chronic wounds. In a 2016 wound healing study performed on rats, Oryan and colleagues demonstrated that aloe vera gel was superior to saline used as the baseline control. Aloe vera gel used in a dose-dependent fashion demonstrated increased tissue levels of collagen and glycosaminoglycans compared with controls. Aloe vera gel modulated wound inflammation, increased wound contraction, wound epithelialization, decreased scar tissue size, and increased alignment and organization of the scar tissue.20
Gauze. Iodoform gauze is a highly absorbent wound product. Sterile gauze promotes granulation and wound healing. It is well suited for wounds with minimal drainage. However, although gauze is inexpensive, it is easily overwhelmed by the moisture content in the wound, requiring frequent dressing changes (up to 3 times a day), ideally by nursing staff. The resulting increase in nursing care may actually increase the cost of wound care compared with other care modalities.
Petroleum gauze is often used in the care of acute and chronic wounds. However, petroleum-impregnated gauze has a water vapor transmission rate that needs to be remoistened every 4 hours. If the affected area is not remoistened during the exudative phase of wound healing, it may precipitate a delay in healing and increase pain and the prevalence of clinical infections compared with hydrocolloid, film, or foam dressings. Bolton suggested stopping the use of petroleum gauze as the control in studies because it does not provide a balanced and moist wound healing environment.21
Advanced Wound Treatments
Film products. Film products, including plastic food wrap, can be used as wound dressings and meet many of the necessary criteria for enhancing wound healing. These include moisture permeability, carbon dioxide, oxygen transfer, and wound protection. Transmission of moisture varies among products known as the moisture vapor transpiration rate. Film dressings have no absorptive qualities and are unsuited for highly exudative wounds.22,23 Adding polymers, antibacterial, and bioactive agents may increase the wound care properties of film dressings.22 Film dressings excel in protecting shallow nonexudative wounds, are waterproof, and help protect the wound. These products are transparent, allowing clinicians to monitor the progress of the wound without removing the covering, and allowing the dressing to remain in place longer, which decreases the repeated trauma that can occur with dressing changes. Film dressings for wounds differ from those used for IV dressings and should not be used interchangeably.23
Bioactive wound care. These solutions contribute to a moist wound-healing environment. Found naturally in brown seaweed, alginate-containing compounds were used by sailors for centuries to heal wounds. This was known in traditional medicine as the mariner’s cure. Alginate dressings are highly absorbent and can absorb up to 20 times their weight, which makes them desirable for use in highly exudative wounds. First synthesized more than 50 years ago, newer products contain bioactive compounds that prevent tissue damage, stimulate wound healing, improve cell proliferation and migration, and enhance metabolite formation.24-26
