Pressure ulcers: A pilot study for treatment with collagen polyvinylpyrrolidone

The group treated with clg-pvp experienced a reduction in mean ulcer size from 3.4 to 1.41 cm in diameter, whereas in the placebo group the reduction was from 2.9 to 1.58 cm in diameter. Despite the greater diameter reduction in the first group, the lack of a statistically significant difference could have resulted from the short follow-up period and small sample size.