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Biomedical subjects

P J Whitney

Publications and source records attributed to P J Whitney.

8 recordsLinked to original sources
PubMed1983

Use of technetium-labeled autologous red blood cells in detection of gastrointestinal bleeding.

Twenty patients with occult gastrointestinal bleeding underwent diagnostic evaluation with autologous TcRBC imaging, which identified a locus of bleeding in 19. Bleeding was demonstrated in the esophagogastroduodenal area in four patients, the cecum in four patients, the ascending colon or hepatic flexure in nine patients and the descending colon in two patients. In the six patients who underwent surgical intervention, the source of bleeding had been correctly located by imaging. The advantages of imaging over those of conventional arteriography included its minimally invasive nature and its ability to detect areas of intermittent minimal bleeding for a period of 30 hours. The major disadvantages of the technique were that localization of the site of bleeding was not as precise as that obtained with arteriography, imaging could not be used as a treatment modality and the nature of the lesion could not be defined. However, we believe that, as an adjunct to conventional angiography and other techniques, autologous TcRBC imaging will improve the localization of obscure foci of gastrointestinal bleeding. Studies are underway to determine the proper place of TcRBC imaging in the gastroenterologic armamentarium. Its noninvasive nature and sensitivity to intermittent hemorrhage suggest that it may become the initial investigative modality of choice in many instances.

Adult↗
PubMed1982

Educating primary physicians in emergency surgical procedures.

While federal agencies explore ways to encourage physicians to enter primary care practice in underserved areas, they largely avoid the question of how well current training programs prepare physicians for the role. No systematic study has been made of skills in emergency procedures that may be needed in areas where a surgeon is not readily available. A survey of the literature and of our own primary care residents gives cause of concern. Only a third of the residents were confident of their ability to perform a set of procedures essential for stabilizing injured patients. A greater reliance on training in ambulatory clinics, as recommended by the Graduate Medical Education National Advisory Committee (GMENAC), may further decrease opportunities for learning essential technics.

Emergency Medical Services↗