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Biomedical subjects

D P Boyd

Publications and source records attributed to D P Boyd.

At least 37 records · Page 2Linked to original sources
PubMed1977

Bronchobiliary and bronchopleural fistulas.

In the course of treating approximately 2,000 patients with postoperative stricture of the bile duct, 16 bronchopleural and bronchobiliary fistulas were encountered. Three patients have been seen in the past year. This has prompted a review of our experience since it was previously recorded in 1955. Fistulous complications of obstructive biliary tract disease take three forms: (1) massive fulminating biliary empyema; (2) acute necrotizing bile bronchiolitis and pneumonia when pleural symphysis exists; and (3) a more indolent, chronic, recurring form of bronchobiliary communication. We have learned that transdiaphragmatic perforation occurs at a certain characteristic location in the diaphragm. An understanding of the pathological anatomy and pathogenesis has provided a specific and sequential mode of surgical treatment. When this has been adhered to strictly, cure has resulted.

Adult↗
PubMed1977

Initial performance of the Stanford Medical pion generator.

A novel, cylindrical geometry, superconducting pion channel has been constructed at Stanford. It can simultaneously deliver up to 60 radially converging pion beams of the same mean momentum but with individually variable momentum spread (0.0-4.3%). Virtually no tuning of the pion beam is required Preliminary tests have demonstrated many of the performance characteristics which facilitate the treatment of selected human tumors.

Cold Temperature↗
PubMed1976

Infected aortic grafts and aortic fistulas.

Infection in prosthetic grafts of the aorta and in the groin present different problems. Retroperitoneal sepsis must be treated by total removal of the graft. This is probably equally true for acutely infected grafts seen in enteric fistula. The surgical technique described can be performed in one stage. The principles of treatment for groin infections are the same as for infections associated with prosthetic grafts. The hazard is more to limb than to life, since the infection tends to point outward in the groin and thus be confined. The technique for dealing with groin infections, as presented, is straightforward.

Aged↗