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Biomedical subjects

B M Bates-Jensen

Publications and source records attributed to B M Bates-Jensen.

8 recordsLinked to original sources
PubMed1999

Chronic wound assessment.

Chronic wounds are a drain on health care resources, and as such, continue to challenge health care providers to define and create more effective intervention strategies. Wound assessment is the foundation for maintaining and evaluating a therapeutic plan of care. Without adequate baseline wound assessment and valid interpretation of the assessment data, the plan of care for the wound may be inappropriate or ineffective. This article discusses comprehensive assessment of the total patient as well as assessment of wound severity and wound status.

Chronic Disease↗
PubMed1997

The Pressure Sore Status Tool a few thousand assessments later.

Although the Pressure Sore Status Tool (PSST) was developed using expert panelists and its reliability has been previously reported, the patterns that seem to be forming based on the first few thousand PSST assessments have not been reported yet. This paper will focus on analyses of a subset of PSST assessments that were collected as a by-product of testing a computerized assessment and decision support system. Changes in wound characteristics that appear to serve as "lead indicators" of healing, preliminary factor analysis data, and a correlation of total PSST scores with recorded stage will be discussed. Due to the sample size and variability within the data, it is premature to draw firm conclusions from the data. However, analyses of the first few thousand assessments and over 100 healed pressure ulcers show promise in confirming some prior speculations about wound healing. The data also appear to suggest the possibility of surprises that are not necessarily part of current understanding of wound healing in pressure ulcers.

Decision Support Techniques↗
PubMed1996

Wound care nurses' judgements on healing time in chronic wounds.

With the current push to develop critical pathways for chronic wound patients, information on "normal" versus problematic wound healing is important. This descriptive study begins to define chronic wound healing time markers by examining clinicians' own healing expectations with pressure ulcers. A 30-item questionnaire concerning partial and full thickness pressure ulcers on the sacrum, trochanter and heel was sent to 272 wound/ET nurses. Total response rate was 32.3% with 74 analyzable questionnaires returned. Data was analyzed using descriptive statistics and correlations where appropriate. Results were: (1) The longer respondents thought it would take for wounds to heal, the more variable their responses. (2) Respondents viewed heel wounds as taking the longest to heal and were more certain about time to healing in sacral wounds. (3) Responses indicated longer healing times than those shown in recent studies looking at change in wound surface area. (4) Results on time of 3.2 weeks to autolytic debridement of wounds with black eschar does not differ greatly from published time for enzymatic debridement, in spite of guidelines stating that autolysis may take longer than other methods. This study demonstrates that there remains variability in wound nurses' perceptions of time to healing and, therefore, recent attempts at defining critical pathways may be premature.

Critical Pathways↗
PubMed1995

Toward an intelligent wound assessment system.

There is general agreement regarding the need for pressure ulcer assessment methodology which more discretely reflects relevant aspects of wound status than does the commonly used staging system. The Pressure Sore Status Tool (PSST) is one such instrument which was developed with consensual expert input. While the psychometric properties of the PSST have been reported in the literature, the instrument was validated using ET nurses, highly trained wound care specialists, and existed only in manual form. This paper reports results from attempts to establish reliability estimates for healthcare practitioners without extraordinary wound care training or experience. The paper further describes the automation of the PSST and provides examples of pressure ulcer profiles tracked over time. Results indicate that inter-rater reliability with general healthcare practitioners was .78 and intra-rater reliability was .89. The practitioners were able to use the PSST for over six months and the automated system allowed analysis of wound healing profiles that would have been difficult using a manual system. These results imply that movement toward an automated system which makes discriminations regarding the effects of various treatment and intervention strategies is possible and practical.

Aged↗
PubMed1992

Validity and reliability of the Pressure Sore Status Tool.

There is not yet a universal system for describing the status of pressure sores. The purpose of this study was to assess the validity and reliability of an instrument developed by the researchers for evaluation of pressure sores, the Pressure Sore Status Tool (PSST). This study was part of a larger study, which included development of a theoretical model for creation of items for the PSST. A nine-member expert judge panel established content validity of items on the instrument. Data were analyzed using a content of validity index (average index for tool = .91) and judges' comments were used to modify two items on the PSST. Two Enterostomal Therapy (ET) nurses independently used the revised tool to rate 20 pressure sores on ten adult medical-surgical patients, at two observation times. Interrater reliability was established at r = .91 for first observation and r = .92 for the second observation (p < .001). Intrarater reliability was r = .99 for rater one and r = .96 for rater two (p < .001). Future research will focus on refinement and further reliability testing of the instrument.

Adult↗