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Biomedical subjects

Kevin B Johnson

Publications and source records attributed to Kevin B Johnson.

4 recordsLinked to original sources

Does a clinical pathway improve the quality of care for sickle cell anemia?

BACKGROUND: Clinical pathways are often implemented to improve care, yet their effect on quality of care and outcomes is often not evaluated. The Johns Hopkins Children's Center instituted a clinical pathway in early 1996 to improve the care for pediatric sickle cell vaso-occlusive crisis (VOC) and used a retrospective before-after study to describe how quality of care and outcomes changed after introduction of the pathway. RESULTS: Physicians used the pathway in 43% of eligible admissions, with use decreasing over time. Patients on the pathway were more likely to receive each of its required elements than those not on the pathway (odds ratios [OR] 1.15-2.49). After pathway implementation, even patients not on the pathway were more likely to receive incentive spirometry than those admitted before pathway availability (OR 1.40). Pathway use was associated with longer length of stay (LOS) and time to oral pain medication, while readmission rates did not change. DISCUSSION: Use of a clinical pathway improved quality of care by increasing compliance with specific care elements, with mixed results on outcomes. Pathways may improve care for all patients, including nonpathway-treated patients, by influencing underlying practice patterns. Quality improvement committees must regularly monitor outcomes after pathway implementation to evaluate the need for pathway reinforcement and refinement.

Adolescent↗

Clictate: a computer-based documentation tool for guideline-based care.

The use of computer-based documentation tools confers many benefits to the delivery of evidence-based health care. We developed Clictate, a structured reporting environment that utilized standard Windows-based data entry constructs and natural language generation. Clictate has been in use for over 3 years by pediatric providers in an ambulatory setting. More than 50% of our providers use Clictate during the patient encounter. This report describes our results to date, and suggests future opportunities for research and development in the area of computer-based documentation.

Child↗

A situational approach to the design of a patient-oriented disease-specific knowledge base.

We have developed a situational approach to the organization of disease-specific information that seeks to provide patients with targeted access to content in a knowledge base. Our approach focuses on dividing a defined knowledge base into sections corresponding to discrete clinical events associated with the evaluation and treatment of a specific disorder. Common reasons for subspecialty referral are used to generate situational statements that serve as entry points into the knowledge base. Each section includes defining questions generated using keywords associated with specific topics. Defining questions are linked to patient-focused answers. Evaluation of a thyroid cancer web site designed using this approach has identified high ratings for usability, relevance, and comprehension of retrieved information. This approach may be particularly useful in the development of resources for newly diagnosed patients.

Artificial Intelligence↗

Personal health records: evaluation of functionality and utility.

OBJECTIVES: Web-based applications have been developed that allow patients to enter their own information into secure personal health records. These applications are being promoted as a means of providing patients and providers with universal access to updated medical information. The authors evaluated the functionality and utility of a selection of personal health records. DESIGN: A targeted search strategy was used to identify eleven Web sites promoting different personal health records. Specific criteria related to the entry and display of data elements were developed to evaluate the functionality of each PHR. Information abstracted from an actual case was used to create a series of representative PHRs. Output generated for review was evaluated to assess the accuracy and completeness of clinical information related to the diagnosis and treatment of specific disorders. RESULTS: The PHRs selected for review employed data entry methods that limited the range and content of patient-entered information related to medical history, medications, laboratory tests, diagnostic studies, and immunizations. Representative PHRs created with information abstracted from an actual case displayed varying amounts of information at basic and comprehensive levels of representation. CONCLUSIONS: Currently available PHRs demonstrate limited functionality. The data entry, validation, and information display methods they employ may limit their utility as representations of medical information.

Access to Information↗