Incidence of pressure ulcer and risk factors in patients of an Intensive Care Center. / "Incidência de úlcera de pressão e fatores de risco relacionados em pacientes de um Centro de Terapia Intensiva"

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

The research had as objectives to identify and analyze pressure ulcer incidence, to identify related risk factors and investigating the predictive validity of the Braden scale in a sample of 53 patients hospitalized in an Intensive Care Center (ICC) of an university hospital during 3 months. The study was approved by the institution Ethical Research Committee. Data were collected by physical examination, by the application of the Braden scale, patient and family member interviews and by review of patient records. Evaluation were done within 24 hours of admission at the ICC, 48 hours after that and subsequently every other day until the observation of pressure ulcer development, hospital discharge or death of patient. Twenty patients developed 59 pressure ulcers, an index of incidence of 37.7%. The ulcers were located predominantly on heels (42.4%), sacral and coccyx region (30.5%) (30.5%) and buttocks (11.8%). Most of ulcers were on stage I (59.3%) and there was no ulcer on stage IV. On the six first evaluations, patients with pressure ulcers had lower scores in Braden scale than patients without pressure ulcers with significant statistical differences between groups. Scores of sub-scales of sensory perception, activity, mobility, friction and shear were in most of evaluation lower to patients with pressure ulcer with significant statistical differences between groups what did not occur to the sub-scales moisture and nutrition. Among other factors that were investigated, use of mechanical respiration and leaving the ICC because of hospital discharge or death were related to having a pressure ulcer. There were significant differences related to length of hospitalization and length of permanence on ICC between groups when for patients with pressure ulcer both were longer. The results of the tests to investigate the predictive validity of the Braden scale showed that on the first evaluation the score 14 was a score that had a high sensitivity and predictive validity for a negative test however the specificity and predictive validity for a positive test were lower. On the second and third evaluation the scale showed a better performance on predictive validity tests for the 13 and 12 scores respectively.

ASSUNTO(S)

pesquisa em enfermagem clínica fatores de risco unidades de terapia intensiva decubitus ulcer research in clinical nursing intensive care units úlcera de decúbito risk factors

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