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Biomedical subjects

G Fortner

Publications and source records attributed to G Fortner.

6 recordsLinked to original sources
PubMed1985

The significance of hydronephrosis after aortofemoral reconstruction.

Hydronephrosis due to ureteral obstruction is a rarely reported complication of aortic bypass grafting. Patients who had undergone aortic reconstruction were screened using serial real-time ultrasound examination to detect ureteral obstruction. The clinical course and incidence of graft complications, renal impairment, amputation, and death were determined for hydronephrotic patients and compared with the incidence of similar complications in a control group. Hydronephrotic patients had an extremely high incidence of graft infection, anastomotic aneurysm, graft thrombosis, and amputation. Obstructed ureters were at high risk for intraoperative injury during removal of infected aortic grafts. A subgroup of hydronephrotic patients who developed multiple anastomotic aneurysms without graft infection was identified. Hydronephrosis was frequently silent, and detection required active investigation. After aortic reconstruction, routine screening with real-time ultrasound examination appears warranted to identify a high-risk subset of patients.

Aged↗
PubMed1985

Prostaglandins and nicotinate-provoked increase in cutaneous blood flow.

The mechanism of topically applied methyl nicotinate-induced local cutaneous erythema was studied in normal human subjects. Aqueous methyl nicotinate (0, 0.1, 1.0, 10.0, and 100 mmol/L) was applied to the volar forearms in quadruplicate after oral pretreatments with 25 mg doxepin hydrochloride, 600 mg ibuprofen, 50 mg indomethacin, 975 mg aspirin, and lactose placebo. The cutaneous vascular response was monitored by laser Doppler velocimetry. Although doxepin did not affect the cutaneous vascular response to methyl nicotinate, indomethacin, ibuprofen, and aspirin significantly suppressed the response. Because indomethacin, ibuprofen, and aspirin have different chemical structures, the common property of inhibition of the response to methyl nicotinate may be assigned to their common pharmacologic action, i.e., inhibition of prostaglandin bioformation.

Administration, Oral↗
PubMed1985

Cutaneous vascular sensitivity to lower aliphatic alcohols and aldehydes in Orientals.

An ethnic predisposition to ethanol-provoked flushing among diverse Mongoloid populations may be the consequence of a delayed oxidation and accumulation of acetaldehyde. Orientals who flush after oral alcohol are more likely to have cutaneous erythema after topical ethanol or propanol, and the cutaneous vascular reaction to primary alcohols is actually provoked by the corresponding aldehyde. The cutaneous reaction to primary alcohols can be totally blocked by pretreatment with 4-methylpyrazole, a potent inhibitor of alcohol dehydrogenase.

1-Propanol↗
PubMed1984

Abdominal aortic aneurysms.

Aneurysms are common in our increasingly elderly population, and are a major threat to life and limb. Until the advent of vascular reconstructive techniques, aneurysm patients were subject to an overwhelming risk of death from exsanguination. The first successful repair of an abdominal aortic aneurysm using an interposed arterial homograft was reported by Dubost in 1952. A milestone in the evolution of vascular surgery, this event and subsequent diagnostic, operative and prosthetic graft refinements have permitted patients with an unruptured abdominal aortic aneurysm to enjoy a better prognosis than patients with almost any other form of major systemic illness.

Aorta, Abdominal↗