40 patients with pressure ulcer at stages 2 or 3
(Table 1) were divided randomly in two groups (groups K and
C). Patients of neither group had obvious finding of underlying
osteomyelitis, radiologically and clinically. Routine lowpressure
air mattress was used for all bed-bound patients.
Albumin levels were taken to ensure proper nutrition in each
case. At first, mandatory wound bed preparation such as
removal of nonviable tissue and drainage of abscess was done
for patients who need emergent intervention. The wounds
were anesthetized by local lidocaine 1 %, accompanied by
sedation with ketamine hydrochloride under sterile condition,
and the first specimen from wound place for primary culture
and histological studies was taken, upon arrival, to determine
initial size of the wound. All samples were photographed.
Wound of all patients were kept in environment of the hospital
under study and had sterile dressing.