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Biomedical subjects

W D Logan

Publications and source records attributed to W D Logan.

At least 19 recordsLinked to original sources

Total body hyperthermia in the treatment of Kaposi's sarcoma in an HIV positive patient.

The effect of prolonged exposure to heat on the HIV has had limited exploration. This is the report of a 33-year-old white man with positive tests for HIV and multiple lesions of Kaposi's Sarcoma. The patient was exposed to total body hyperthermia of 42 degrees C for two hours. Three months following hyperthermia the patient feels improved. The lesions of Kaposi's Sarcoma have markedly regressed, and the T4 lymphocyte count has risen from 5 per cc to 330 per cc. HIV cultures (blood) remain negative. These data would indicate this modality of therapy has altered the progression of disease in this patient.

Adult

Aortoesophageal fistula: early postoperative complication at the distal anastomosis of an aortic graft.

Though secondary aortoesophageal fistula and subsequent hemorrhage is rare, the clinician must have a high index of suspicion to establish the correct diagnosis and institute appropriate treatment. We have proposed an algorithm to help prevent a massive hemorrhage such as the one that proved fatal in our patient. In the case of massive upper gastrointestinal hemorrhage, a Sengstaken-Blakemore tube should be done expeditiously. In the case of sentinel hemorrhage, aortography is the initial diagnostic procedure of choice, followed by flexible esophagogastroscopy if necessary.

Aged

Operation care.

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Georgia

The dog heartworm (Dirofilaria immitis) in man. An epidemic pending or in progress?

Human infection with the dog heartworm (Dirofilaria immitis) may lead to focal pulmonary infarction with granuloma formation. The resulting roentgenographic coin lesion may require a diagnostic thoracotomy in consideration of malignancy. Because of sometimes enigmatic histopathological characteristics, this process may not be receiving the recognition it deserves. Furthermore, the dramatic increase of primary (canine) host infections in the United States presages an increase of secondary (human) host infections. Many thoracotomies will be performed for this innocuous process unless the dirofilarial agent can be controlled or the human pulmonary lesion can be reliably identified without operation.

Aged

Improved technique of intraaortic balloon insertion.

Routine insertion of an intraaortic balloon through the femoral artery may be difficult in the face of obstructive aortoiliac atherosclerosis. Perioperatively, the balloon catheter may be guided through diseased vessels by transabdominal palpation.

Arteriosclerosis