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Biomedical subjects

Thea Heffner

Publications and source records attributed to Thea Heffner.

2 recordsLinked to original sources

Computer-enhanced surgical systems ("robotic surgery").

Computer-linked surgical systems allow surgeons to perform procedures without coming into contact with the patient. Indications for these robotic surgery systems are expanding. This technology offers potential advantages through enabling more precise surgery, which may lead to shorter patient recovery times, fewer complications and improved patient outcomes. Limited studies indicate the promise of these systems, which appear to be safe, but their efficacy is not fully established. In some procedures, the advantages they offer may also be achieved by newer non-computer assisted techniques. Capital costs are high and cost-effectiveness has not been demonstrated. Diffusion of these systems can be expected to continue, but their place in surgical practice is not yet clear. They are most likely to be of value for centres undertaking specialized surgical services.

Canada↗

Evaluation of a no-dressing intervention for tunneled central venous catheter exit sites.

This study tested whether central venous catheter (CVC)-related sepsis could be reduced by removing a hypothesized reservoir for pathogens, the CVC exit site dressing. Seventy-eight individuals with cancer, stratified for gender (37 men and 41 women) and transplant status, with newly inserted CVCs were recruited and randomly assigned to receive either a gauze dressing or no dressing, once their catheter insertion site had healed (3 weeks). Because there was no difference in CVC-related septic episodes based on gender or transplant status, the stratification was not maintained for remaining analyses. Although there was no significant difference in CVC-related septic episodes (P =.28) or rehospitalization rates (P =.41) because of CVC-related sepsis between the dressing and no-dressing group, individuals in the dressing group developed CVC-related sepsis sooner (P =.02) than did individuals in the no-dressing group.

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