Home telehealth provides an innovative and pragmatic approach to enhance earlier detection of key clinical symptoms requiring intervention. Transmission of education and advice to the patient on an ongoing basis with close surveillance by nurses can improve clinical outcomes in patients with comorbid chronic illness.

Previous studies have found that home-based intervention programs reduce readmission rates for patients with heart failure. Only one previous trial has compared telephone and videophone to traditional care to deliver a home-based heart failure intervention program. The objective of this study was to evaluate the efficacy of a telehealth-facilitated postdischarge support program in reducing resource use in patients with heart failure. Patients at a Midwestern Department of Veterans Affairs Medical Center were randomized to telephone, videophone, or usual care for follow-up care after hospitalization for heart failure exacerbation. Outcome measures included readmission rates; time to first readmission; urgent care clinic visits; survival; and quality of life. The intervention resulted in a significantly longer time to readmission but had no effect on readmission rates or mortality. There were no differences in hospital days or urgent care clinic use. All subjects reported higher disease-specific quality of life scores at 1 year. There was evidence of the value of telephone follow-up, but there was no evidence to support the benefit of videophone care over telephone care. Rigorous evaluation is needed to determine which patients may benefit most from specific telehealth applications and which technologies are most cost-effective.

This study examined the diagnostic validity of three different swab techniques in identifying chronic wound infection. Concurrent swab specimens of chronic wounds were obtained using wound exudate, the Z-technique, and the Levine technique, along with a specimen of viable wound tissue. Swab and tissue specimens were cultured using quantitative and qualitative laboratory procedures. Infected wounds were defined as those containing 1 x 10(6) or more organisms per gram of tissue. Accuracy was determined by associating the quantitative cultures of swab specimens with the cultures from tissue specimens using receiver operating characteristic curves. Of the 83 study wounds, 30 (36%) were infected. Accuracy was the highest for swab specimens obtained using Levine's technique at 0.80. Based on Levine's technique, a critical threshold of 37,000 organisms per swab provided a sensitivity of 90% and a specificity of 57%. The mean concordance between swab specimens obtained using Levine's technique and tissue specimens was 78%. The findings suggest that swab specimens collected using Levine's technique provide a reasonably accurate measure of wound bioburden, given that they are more widely applicable than tissue cultures. The diagnostic validity of Levine's technique needs further study using an alternative reference standard, such as the development of infection-related complications.