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Kathryn A Peterson

Publications and source records attributed to Kathryn A Peterson.

5 recordsLinked to original sources
PubMed2004

Comparison of air-coupled balloon esophageal and anorectal manometry catheters with solid-state esophageal manometry and water-perfused anorectal manometry catheters.

Clinical gastrointestinal manometry studies are currently performed with multilumen water-perfused polyvinyl or strain gauge sensor solid-state catheters. A disposable catheter incorporating air-filled balloons has been developed with performance characteristics suitable for esophageal and anorectal manometry studies. Our aim was to compare esophageal and anorectal pressure measurements using this newly developed catheter with measurements obtained using standard solid-state or water-perfused catheters. Measurements of resting LES pressure, esophageal contraction amplitudes, and anorectal rest and squeeze pressures were obtained in 10 healthy volunteers using a solid-state esophageal catheter, a water-perfused anorectal catheter, and air-filled balloon esophageal and anorectal catheters. Correlation coefficient analysis demonstrated that LES pressures, esophageal contraction amplitudes, and anorectal resting and squeeze pressures were not significantly among between the different catheters. We conclude that recently developed air-filled balloon esophageal and anorectal manometry catheters provide very similar measurements of LES, esophageal body, and anorectal sphincter pressures compared to presently used manometry catheters.

Adolescent↗
PubMed2002

Secondary prevention: screening and surveillance of persons at average and high risk for colorectal cancer.

Secondary prevention of colorectal cancer with FOBT and endoscopy with polypectomy decreases cancer deaths. Other available modalities include genetic tests and imaging studies, but outcomes data are not yet available. Issues remain concerning the most appropriate test, the optimal intervals, and cost-efficacy. Patients may be stratified by personal and family risk, and specific strategies may be used. Newer developments in genetic tests and imaging, including virtual colonoscopy, hold promise for the future. The most important issue at present is to have people screened or surveilled by any of the recommended modalities.

Adenoma↗