To explore the related risk factors of elderly patients with pressure healing.

99 elderly pressure ulcer patients from March to December 2013 who had received comprehensive treatment in the center were selected. The relevant factors (age, diabetes, hypoproteinemia, cardiopulmonary insufficiency, renal insufficiency, wound depth, osteomyelitis, multiple fracture, peripheral vascular hemodynamic disorder, disturbance of sensation,disturbance of autokinetic movement, dementia)that affect the failure of clinical treatment were analyzed and the statistically significant predictors were screened. Meanwhile, the partial tissue oxygen saturation (rSO₂) was measured during the comprehensive treatment (week 1, 3, 6, 10). Single factor analysis of related factors between two groups used –chi-square test, the related factors which were statistically significant took logistic regression.

28 out of 99 cases were failure in comprehensive treatment group. The major risk factors of pressure ulcer healing include blood albumin≤ 25 g/L, blood culture positive, cardiopulmonary dysfunction and peripheral vascular blood circulation disorder. These factors were correlated with treatment failure. According to Logistic retrospective analysis, these four factors are not independent factorsleading to the failure of pressure ulcer treatment. After 10 weeks of treatment, the test of rSO₂in wounds improved to 32%.

Blood culture positive,cardiopulmonary dysfunction, peripheral vascular blood circulation disorder and blood albumin≤25 g/Lmay lead to the increasing of failure rate for treatment of pressure ulcer in elderly patients.